JP5987387B2 - Head mounted display and surgical system - Google Patents

Description

  The present technology relates to a head mounted display that can be used for medical purposes.

  2. Description of the Related Art A head mounted display (HMD) that is worn by a wearer on a head to view an image or the like is known. For example, as an HMD, a configuration having an image display surface and a display element for right eye and left eye is known (see Patent Document 1). The HMD having such a configuration can display a parallax image from the left and right display surfaces to the left and right eyes of the wearer, and thus can provide a three-dimensional (3D) image without crosstalk.

  On the other hand, practical application of a 3D endoscope apparatus capable of providing a 3D image is also being studied for endoscope apparatuses used for medical purposes. Endoscopic surgery is less invasive to patients than normal surgery, and has been actively performed in recent years. On the other hand, at the time of surgery, since the affected part is confirmed only through the image, it is sometimes difficult to grasp the depth direction in the conventional two-dimensional (2D) image. Therefore, it is expected that by using an HMD that can provide a 3D image connected to a 3D endoscope apparatus, a more accurate and quick endoscopic operation can be performed while viewing a realistic image of the affected area.

JP 2011-145488 A

  Here, when wearing the HMD configured as described above, typically, the wearer looks at the image displayed on the display surface, and is in a position where there is no blurring or defocusing of the image, that is, the display surface and the left and right eyes. Therefore, it is necessary to adjust the mounting position of the HMD to a position opposite to the HMD.

  However, the surgeon (wearer) cannot adjust the mounting position by himself / herself because he / she cannot touch the HMD due to hygiene problems when mounting the HMD during the operation. Therefore, it is necessary for a person other than the wearer to assist wearing, but in this case, since it is difficult to confirm the positional relationship between the wearer's eyes and the display surface, it is difficult to adjust the relative position of the HMD with respect to the wearer. there were.

  In view of the circumstances as described above, an object of the present technology is to provide an HMD capable of adjusting a relative position with respect to a wearer without confirming a display image.

In order to achieve the above object, a head mounted display according to an embodiment of the present technology includes a main body and a reference unit.
The main body includes a housing, an image display unit including a display surface configured to emit image light in the first axial direction, and can be attached to the wearer's head attached to the housing. A configured mounting portion.
The reference unit is disposed on the main body and displays a relative position between the main body and the eyes of the wearer to the outside.

  The head-mounted display can display the relative position of the main body and the wearer's eyes to the outside by means of the reference portion, so that the relative position of the main body with respect to the wearer is adjusted to an appropriate position while referring to the reference portion. It becomes possible to do.

The reference unit may include a window unit configured to expose the wearer's eyes to the outside and disposed in the housing.
As a result, the position of the wearer's eyes can be grasped from the outside, and the relative position with respect to the main body can be easily adjusted by referring to the arrangement of the window portion and the like.

Furthermore, the reference unit may include an indicator unit that is disposed in the window unit and that indicates the position of the display surface and the first axial direction.
Thereby, it can be set as an appropriate relative position by adjusting the eye of the wearer exposed through the window portion and the display surface to face each other in the first axial direction while referring to the indicator portion. It becomes possible.

Moreover, the said window part may be comprised so that a light transmission state and a light-shielding state can be switched.
Thereby, when adjusting the relative position, the wearer's eyes can be confirmed from the outside by setting the light-transmitting state. On the other hand, when observing the image, it is clearer by setting the light-shielding state. An image can be presented.

The housing further includes first and second side surfaces facing a second axial direction orthogonal to the first axial direction,
The window may be disposed on at least one of the first and second side surfaces.
Thereby, the position of the wearer's eyes can be confirmed from the side, and the relative position in the height direction (that is, the direction orthogonal to the first and second axial directions) can be easily adjusted with respect to the display surface. can do.

The main body may further include a movable member configured to be movable between a first position for closing the window portion and a second position for opening the window portion.
Thereby, opening and closing of a window part can be performed by a movable member. Therefore, when observing an image, by making the movable member the first position, it is possible to suppress the incidence of external light from the window portion and present a clearer image, while the second position and By doing so, the wearer's eyes are exposed to the outside through the window portion, and the relative position can be adjusted.

Specifically, the movable member has a first region that opens and closes the window, and a second region that supports the display surface.
The display surface may emit image light in the first axial direction at the first position.
Thereby, when image light is emitted from the display surface, the window portion is closed, and a clearer image can be presented to the wearer. On the other hand, in the 2nd position, it can be set as the structure which can retract | save a display surface and can ensure a wearer's peripheral visual field. Therefore, it can be set as the structure which can switch rapidly between the image display mode in which an image is shown to a wearer, and the peripheral visual field ensuring mode in which a wearer's visual field is open | released.

Furthermore, the housing may have an opening facing the second region at the first position.
Thereby, when the movable member is set to the second position, the wearer can have a wider field of view.

Further, the mounting portion further includes a connecting portion that detachably connects the housing and the mounting portion,
The reference unit may be disposed on the mounting unit and display a relative position of the wearer's eyes with respect to the connecting unit to the outside.
Thereby, a wearer can connect a housing | casing as needed by mounting | wearing only a mounting part beforehand. Furthermore, by mounting the mounting portion with reference to the reference portion, it is possible to obtain an appropriate relative position at the time of housing connection, and a configuration that does not require adjustment of the relative position at every time of housing connection. it can. Therefore, it is possible to greatly reduce the wearing time.

  As described above, according to the present technology, it is possible to provide an HMD capable of adjusting a relative position with respect to a wearer without confirming a display image.

It is a figure showing typically an example of composition of an endoscope system concerning a 1st embodiment of this art. It is a schematic side view showing the head mounted display concerning a 1st embodiment of this art. 1 is a schematic front view illustrating a head mounted display according to a first embodiment of the present technology. It is a schematic side view which shows the aspect which the wearer mounted | wore with the head mounted display which concerns on 1st Embodiment of this technique, and shows the aspect which made the window part the permeation | transmission state. It is a schematic side view which shows the aspect which the wearer mounted | wore with the head mounted display which concerns on 1st Embodiment of this technique, and shows the aspect which made the window part the light-shielding state. It is a schematic front view which shows the aspect which the wearer mounted | wore with the head mounted display which concerns on 1st Embodiment of this technique. It is a block diagram showing the composition of the head mounted display (image display part) concerning a 1st embodiment of this art. It is a schematic side view which shows the head mounted display which concerns on 2nd Embodiment of this technique, and shows the aspect which has a movable member in a 1st position. It is a schematic side view which shows the head mounted display which concerns on 2nd Embodiment of this technique, and shows the aspect which has a movable member in a 2nd position. It is a schematic front view which shows the head mounted display which concerns on 2nd Embodiment of this technique, and shows the aspect which has a movable member in a 1st position. It is a schematic front view which shows the head mounted display which concerns on 2nd Embodiment of this technique, and shows the aspect which has a movable member in a 2nd position. It is a schematic side view which shows the aspect which the wearer mounted | wore with the head mounted display which concerns on 2nd Embodiment of this technique, and shows the aspect which has a movable member in a 1st position. It is a schematic side view which shows the aspect which the wearer mounted | wore with the head mounted display which concerns on 2nd Embodiment of this technique, and shows the aspect which has a movable member in a 2nd position. It is a schematic side view which shows the head mounted display which concerns on 3rd Embodiment of this technique, and the aspect which the housing | casing and the mounting part isolate | separated is shown. It is a schematic side view which shows the head mounted display which concerns on 3rd Embodiment of this technique, and shows the aspect which the housing | casing and the mounting part connected. It is a schematic side view which shows the aspect with which the wearer mounted | wore the head mounted display which concerns on 3rd Embodiment of this technique, and shows the aspect with which only the mounting part separated from the housing | casing was mounted | worn. It is a schematic side view which shows the aspect which the wearer mounted | wore with the head mounted display which concerns on 3rd Embodiment of this technique, and shows the aspect with which the housing | casing and the mounting part were connected and mounted | worn. It is a mimetic diagram showing a modification of a reference part of a head mounted display concerning a 1st embodiment of this art.

  Hereinafter, embodiments according to the present technology will be described with reference to the drawings.

<First Embodiment>
[Endoscope system]
FIG. 1 is a diagram schematically illustrating a configuration example of an endoscope system according to an embodiment of the present technology. An endoscope system 100 according to the present embodiment includes a head mounted display (HMD) 1, an endoscope apparatus 2, and a processor unit 3. In the endoscope system 100 according to the present embodiment, an operator (wearer) wearing the HMD 1 inserts the endoscope apparatus 2 into a patient's body during the endoscopic operation. It is used to perform a treatment such as excision on the affected part while confirming the state of the imaged affected part with the HMD 1.

  The endoscope apparatus 2 includes, for example, an insertion unit 21 and an operation unit 22. The insertion portion 21 has a tubular structure that can be inserted into the body, and incorporates an imaging element such as a CMOS image sensor (not shown) for imaging the affected area, and an optical system such as a lens. In the present embodiment, two image pickup elements, two optical systems, and the like are arranged to pick up right-eye and left-eye images having parallax. Thereby, the data of the 3D image which can display an affected part in three dimensions can be acquired.

  Further, a scalpel or forceps for excising or grasping the affected part is inserted into the insertion part 21. The operation unit 22 is held by a surgical assistant or the like, and is configured to be able to operate the insertion unit 21. The operation unit 22 is connected to the processor unit 3 via a cable 23.

  The processor unit 3 is, for example, an image processing unit 31 that performs processing of an image acquired by the endoscope apparatus 2, a light source 32 that irradiates the affected area during imaging by the endoscope apparatus 2, or a signal related to an image that is output to the HMD 1. The conversion unit 33 and the like for conversion processing are included. The light emitted from the light source 32 is guided to the distal end of the insertion portion 21 through, for example, a light guide fiber disposed inside the insertion portion 21.

  Further, the image processing unit 31 can superimpose the captured right-eye and left-eye images and process them as 3D image data. The 3D image data is output to the monitor device M via, for example, the cable 36 and the like, and is configured such that an auxiliary part other than the wearer wearing the HMD 1 can confirm the affected area during the operation.

  The HMD 1 is electrically connected to the processor unit 3 and is attached to a wearer who gives instructions while observing an endoscopic image to a surgical assistant or the like who operates the endoscope apparatus 2. The connection method between the HMD 1 and the processor unit 3 is not particularly limited by wire or wireless, but in the present embodiment, for example, the cable is connected by a cable 35 that is input / output via an HDMI terminal.

  Signals relating to the right-eye and left-eye images captured by the endoscope apparatus 2 are processed as image signals by the image processing unit 31, and then processed as image data that conforms to the HMD 1 by the conversion unit 33, respectively. Is output to the HMD 1 via The processor unit 3 may be configured to supply driving power to the HMD 1 via the cable 35.

  The conversion unit 33 that processes an output signal to the HMD 1 is not limited to the illustrated example included in the same housing as the image processing unit 31 and the like, and is housed in a separate housing from the image processing unit 31 and the like. It is also possible.

  Next, a detailed configuration of the HMD 1 according to the present embodiment will be described.

[HMD]
2-7 is a figure which shows the structure of HMD1 which concerns on this embodiment, FIG. 2 is a schematic side view, FIG. 3 is a schematic front view, FIG. 4, FIG. 5 is a schematic side view which shows the aspect which the wearer wore. FIG. 6 is a schematic front view showing an aspect worn by the wearer, and FIG. 7 is a block diagram showing a configuration of an image display unit. The HMD 1 includes a main body 4 and a reference unit 6. The HMD 1 according to the present embodiment is configured by, for example, a goggle-shaped non-transmissive HMD.

  Note that the x-axis direction and the y-axis direction in the figure indicate the horizontal direction in the xyz coordinate system to which the HMD 1 belongs. The x-axis direction (second axial direction) is the left-right direction of the main body 4. The y-axis direction (first axial direction) is the front-rear direction of the main body 4 orthogonal to the x-axis direction. The z-axis direction indicates a direction orthogonal to the x-axis direction and the y-axis direction, and is the vertical direction of the main body 4.

  In the drawing, the X-axis direction and the Y-axis direction indicate the horizontal direction in the XYZ coordinate system to which the wearer belongs, and the XY plane indicates a “horizontal plane”. That is, the X-axis direction is the left-right direction as viewed from the wearer, and the Y-axis direction is orthogonal to the X-axis direction and indicates the front-rear direction (front-back direction of the wearer) as viewed from the wearer. The Z-axis direction is orthogonal to the X-axis direction and the Y-axis direction and indicates the vertical direction.

  Hereinafter, the configuration of each unit will be described.

(Body)
The main body 4 includes a housing 41, an image display unit 42, and a mounting unit 5. The main body 4 is configured such that the housing 41 is disposed in front of the left and right eyes of the wearer by mounting the mounting portion 5 on the head of the wearer.

  The casing 41 is configured to cover the left and right eyes of the wearer and fit to the face as a whole. The housing 41 includes a left side surface (first side surface) 411 and a right side surface (second side surface) 412 that face each other in the x-axis direction, a front surface 413 and an eyepiece surface 414 that face each other in the y-axis direction, and a z-axis. And an upper surface 415 and a lower surface 416 that face each other in the direction.

  The eyepiece surface 414 is configured so as to face and oppose the right and left eyes of the wearer. For example, a cutout may be formed in the center portion according to the shape of the wearer's nose. On the other hand, the front surface 413 is arranged in front of the wearer wearing the HMD 1 and is configured in a rectangular shape, for example. The left side surface 411 and the right side surface 412 may be arranged on the left side and the right side of the wearer's face at the time of wearing, for example, to cover the vicinity of the left and right temples of the wearer.

  The housing 41 having such a configuration can almost completely cover the front of the wearer's eyes when worn, can shield external light, and can display a clearer image.

  The housing 41 is not limited to the above configuration. For example, the left and right side surfaces 411 and 412, the front surface 413, the upper surface 415, and the lower surface 416 except the eyepiece surface 414 are smoothly connected to form one outer surface. May be configured.

  FIG. 7 is a block diagram illustrating a configuration of the image display unit 42. The image display unit 42 includes left and right display surfaces 421 and 422, an image generation unit 44, and left and right display elements 431 and 432. The image display unit 42 is disposed as a whole inside the housing 41 and is configured as an image display device that presents a predetermined image captured by the endoscope device 2 to the wearer. Specifically, first, the image generation unit 44 generates image signals to be output to the left and right display elements 431 and 432 based on the image data acquired via the processor unit 3. Next, the display elements 431 and 432 emit image light corresponding to these image signals to the display surfaces 421 and 422, respectively, and an image is presented to the wearer.

  The display surfaces 421 and 422 are disposed on the eyepiece surface 414 along the x-axis direction, and are configured to be able to display images for the left eye and right eye of the wearer. Although the shape and size of the display surfaces 421 and 422 are not particularly limited, in the present embodiment, each of the display surfaces 421 and 422 is configured in a rectangular shape having a length of about 16 mm and a width of about 30 mm. The material for forming the display surfaces 421 and 422 is not particularly limited as long as it has transparency. For example, a plastic plate, a glass plate, or the like is employed.

  In this embodiment, the image generation unit 44 includes an image data conversion circuit that converts the image data for the right eye and the left eye transmitted from the processor unit 3 into an image signal for HMD1. The image generation unit 44 acquires endoscopic image data from an HDMI (High-Definition Multimedia Interface) input terminal 441 connected to the cable 35.

  Further, the image generation unit 44 may perform predetermined shift processing or the like on the image data to generate image signals for left eye and right eye suitable for the HMD1. This makes it possible to present a desired 3D image to the wearer. The shift amount in the shift process is calculated from, for example, the distance between the display elements 431 and 432 of the HMD 1 and the eyes, the distance between both eyes, or a virtual image position described later.

  The image generation unit 44 outputs the generated left-eye and right-eye image data to the left and right display elements 431 and 432, respectively.

  The left and right display elements 431 and 432 emit image light toward the left and right display surfaces 421 and 422 based on the image data input from the image generation unit 44. For example, the display elements 431 and 432 are arranged to face the display surfaces 421 and 422 in the y-axis direction, respectively. Thereby, the optical axes of the image light emitted from the display elements 431 and 432 and the display surfaces 421 and 422 are parallel to the y-axis direction.

  In the present embodiment, the display elements 431 and 432 are configured by organic EL (Electroluminescence) elements. By adopting organic EL elements as the display elements 431 and 432, downsizing, high contrast, quick response, and the like can be realized.

  The display elements 431 and 432 have a configuration in which, for example, a plurality of red organic EL elements, green organic EL elements, blue organic EL elements, and the like are arranged in a matrix. Each of these elements is driven by a drive circuit such as an active matrix type or a simple (passive) matrix type, and thereby emits light at a predetermined timing, brightness, and the like. The display elements 431 and 432 are configured such that a predetermined image is displayed as the entire display elements 431 and 432 by controlling the drive circuit based on the image signal generated by the image generation unit 44. The

  Note that the display elements 431 and 432 are not limited to the above configuration, and for example, a liquid crystal display element (LCD) or the like may be employed.

  Between the display elements 431 and 432 and the display surfaces 421 and 422, for example, a plurality of eyepieces (not shown) are arranged as an optical system. By making these eyepieces and the wearer's eyes face each other at a predetermined distance, it becomes possible for the wearer to observe a virtual image that appears to be displayed at a predetermined position (virtual image position). The virtual image position and the size of the virtual image are set by the configuration of the display elements 431 and 432 and the optical system, for example, the size of the virtual image is 750 inches of a movie theater size, and the virtual image position is about 20 m away from the wearer. It is set to be the position.

  Here, in order to make the wearer observe a virtual image, image light emitted from the display elements 431 and 432 with the y-axis direction as the optical axis direction is formed on the retinas of the left and right eyes by an eyepiece or the like. As described above, the housing 41 is arranged for the wearer.

  From this, in order for the wearer to observe a predetermined image, the eyes of the wearer are substantially coincident with the emission direction of the image light, that is, the display surfaces 421 and 422 and the left and right eyes of the wearer are aligned. The housings 41 need to be arranged so as to face each other in the y-axis direction. Hereinafter, such a relative position of the housing 41 with respect to the wearer is referred to as “appropriate relative position”.

  When the arrangement of the casing 41 is not an appropriate relative position, the wearer cannot see a desired image because the image is out of focus or the 3D image is blurred. Therefore, when the HMD 1 is mounted, it is necessary to adjust the casing 41 to an appropriate relative position, and to fix the casing 41 to the head so that the position does not shift during the mounting. In the present embodiment, the relative position of the housing 41 is adjusted and fixed by the following mounting portion 5.

  The mounting portion 5 includes bands 51 and 52, an adjustment portion 53, left and right attachment members 541 and 542, and a forehead pad 55. The mounting portion 5 is attached to the housing 41 so that the housing 41 is in an appropriate relative position with respect to the wearer, that is, the display surfaces 421 and 422 and the left and right eyes of the wearer face each other in the y-axis direction. Thus, it is configured to be attachable to the wearer's head.

  A schematic configuration of the mounting portion 5 according to the present embodiment will be described with reference to FIGS. The bands 51 and 52 are attached to the housing 41 via attachment members 541 and 542, and are configured to pass from the left side surface 411 of the housing 41 to the right side surface 412 through the head and back of the wearer, respectively. The Further, since the length of the bands 51 and 52 can be adjusted by the adjustment unit 53, the relative position in the height direction and the front-rear direction of the housing 41 with respect to the wearer can be adjusted. In addition, the forehead pad 55 is configured to be able to contact the wearer's forehead, and the relative position of the wearer in the front-rear direction is adjusted by the forehead pad 55 and the band 52 by adjusting the length of the band 52 that passes through the back of the head. Can be fixed.

  Each of the bands 51 and 52 includes, for example, two short bands that are respectively attached to the attachment members 541 and 542, and the short bands are fixed so as to overlap each other with a predetermined length, so that the entire band is one. Each is configured to be a book band. For the fixing, an adjusting unit 53 described later is used. In addition, as materials for forming the bands 51 and 52, for example, rubber, plastic, cloth, or the like is adopted in view of strength and flexibility.

  In the present embodiment, the adjustment unit 53 adjusts the relative position of the housing 41 with respect to the wearer. The adjustment unit 53 includes adjustment members 531 and 532 that are attached to the band 51 and the band 52, respectively, and that can adjust the lengths from the attachment member 541 to the attachment member 542, for example.

  As the adjusting members 531, 532, for example, a buckle used for a belt or the like, a single latch, or the like can be adopted. With such a configuration, the overlapping length of the two short bands of the bands 51 and 52 can be arbitrarily fixed and released, and the lengths of the bands 51 and 52 can be made variable. The configuration of the adjusting members 531 and 532 is not particularly limited, and can be appropriately selected according to the material, shape, and the like of the bands 51 and 52.

  In the present embodiment, the left and right attachment members 541 and 542 are disposed on the left and right side surfaces 411 and 412, respectively. The configuration of the attachment members 541 and 542 is not particularly limited, and for example, a crimped configuration in which one end portions of the bands 51 and 52 are overlapped and attached to the housing 41 may be employed. In addition, the attachment members 541 and 542 may be configured to allow the bands 51 and 52 to rotate with respect to the housing 41 within a predetermined angle range, respectively.

  The forehead pad 55 is attached so as to protrude from the eyepiece surface 414 of the housing 41 to the upper surface 415, for example. The configuration of the forehead pad 55 is not particularly limited, and a cushion-like configuration is adopted on the surface that comes into contact with the wearer in consideration of the wearer's wearing feeling and the like. Moreover, as needed, the angle with respect to the housing | casing 41 and the height position of az axis direction may be comprised, and it may be comprised so that removal is possible as needed.

(Reference part)
The reference part 6 has a window part 61 and an index part (mark) 62 in the present embodiment. The reference unit 6 is configured to be able to adjust the relative position of the main body 4 with respect to the wearer by adjusting the eyes of the wearer exposed to the outside through the window 61 using the position of the mark 62 as an index. .

  In the present embodiment, the window portion 61 is disposed on the left side surface 411 of the housing 41, and more specifically, at a position substantially facing the wearer's eyes in the x-axis direction from the left side of the wearer when worn. Be placed. In addition, the window 61 is typically configured in a rectangular shape, but the shape and size thereof are not particularly limited as long as the eyes of the wearer can be sufficiently exposed in the light-transmitting state described later.

  In the present embodiment, the window portion 61 is configured to be switchable between a light transmitting state and a light shielding state. 4 and 5 are schematic side views showing a mode in which the wearer wears the HMD 1, FIG. 4 shows a mode in which the window portion 61 is in a transmissive state, and FIG. 5 shows a mode in which the window portion 61 is in a light-shielded state. An aspect is shown. In the present embodiment, the window portion 61 is configured by a liquid crystal shutter. As a result, the window 61 can be switched between a light-transmitting state and a light-shielding state by controlling a driving voltage from a driving source (not shown). The switching between the light-transmitting state and the light-blocking state related to the window portion 61 may be configured to be performed by, for example, the housing 41 or a switch disposed in the processor unit 3.

  For example, the window portion 61 is exposed to light when adjusting the relative position, so that the eyes of the wearer can be exposed to the outside. On the other hand, by switching to the light shielding state during image observation, it is possible to suppress the incidence of external light between the housing 41 and the wearer's eyes and present a clear image.

  The mark 62 is disposed, for example, in the window portion 61, and indicates the position of the display surfaces 421 and 422 and the y-axis direction that is the image light emission direction. For example, the mark 62 is the position of the display surfaces 421 and 422, and the height position along the z-axis direction of the center of the display surfaces 421 and 422 (that is, the intersection of diagonal lines) (hereinafter simply referred to as “height position”). Index. Specifically, it is composed of one straight line arranged so as to extend in the y-axis direction at the center height position of the display surfaces 421 and 422. With such a mark 62, the arrangement of the display surfaces 421 and 422 and the emission direction of the image light emitted from the display surfaces 421 and 422 can be confirmed.

  The mark 62 may be constituted by, for example, a sticker or the like affixed on the window portion 61, or may be directly drawn on the window portion 61 with a paint or the like. Alternatively, the mark 62 may be formed by two-color molding of the transparent plate, and the transparent plate may be disposed on the window portion 61.

  With the reference unit 6 having the above-described configuration, the relative position of the housing 41 with respect to the wearer's eyes can be adjusted while confirming the position of the wearer's eyes through the window 61. Specifically, the center of the eye (pupil position) is superimposed on the mark 62 and the wearer's line of sight (direction substantially orthogonal to the surface of the eyeball) is adjusted to coincide with the extending direction of the mark 62. Accordingly, the wearer's eyes and the display surfaces 421 and 422 can be opposed to each other in the y-axis direction, that is, the image light emission direction from the display surfaces 421 and 422, and the main body 4 can be appropriately positioned relative to the wearer. It can be.

  Hereinafter, an example of a mounting method of the HMD 1 according to the present embodiment will be described. Here, when a wearer who intends to perform endoscopic surgery using the endoscopic device 2 has already sterilized fingers and cannot adjust the relative position of the HMD 1 by himself / herself, An example in which a wearing assistant (hereinafter simply referred to as an assistant) attaches the HMD 1 to the wearing person will be described.

[Example of installation]
First, the HMD 1 is adjusted and prepared by an assistant longer than the length assumed when the bands 51 and 52 are worn. At this time, the main body 4 and the window portion 61 of the HMD 1 may be activated in advance. Thereby, the window part 61 can be made into a translucent state. Further, the assistant stands on the left side of the wearer, for example, and prepares on an appropriate stand so that the height is easy to assist the wearing of the HMD 1.

  Next, the HMD 1 is mounted on the head from above the wearer by the assistant, and the lengths of the bands 51 and 52 are temporarily adjusted by the adjusting members 531 and 532. The length of the bands 51 and 52 at this time is set to a length that allows the relative position to be adjusted without fixing the relative position of the HMD 1 with respect to the wearer. The band 51 is attached to the top of the wearer's head, and the band 52 is attached to the back of the wearer.

  Further, the relative position of the HMD 1 to the wearer is adjusted. At this time, the assistant can confirm the position of the (left) eye of the wearer through the window 61 from the left side of the wearer by setting the window 61 to a light-transmitting state. Further, referring to the mark 62, the wearer's eyes are superimposed on the mark 62, and the relative position of the main body 4 is adjusted so that the line of sight coincides with the extending direction of the mark 62. Thereby, the main body 4 is disposed so that the display surfaces 421 and 422 and the wearer's eyes are substantially opposed to each other in the y-axis direction. At this time, the length of the band 51 may be adjusted by the adjusting member 531 as necessary. Here, since the bands 51 and 52 are adjusted to have a sufficient length, the relative position of the main body 4 can be easily adjusted.

  After the arrangement of the main body 4 is adjusted to an appropriate relative position, the length of the band 52 is adjusted so that the relative position of the HMD 1 is fixed. Here, the length of the band 52 is adjusted to be shorter by the adjusting member 532, and the forehead pad 55 and the band 52 sandwich the front-rear direction of the wearer's head so that the front-rear direction of the body 4 relative to the wearer is reduced. The position is determined.

  As described above, the HMD 1 according to the present embodiment is attached to the display surfaces 421 and 422 by attaching the eyes of the wearer confirmed through the window 61 so as to overlap the mark 62 in the x-axis direction. The person's eyes can face the y-axis direction, that is, the image light emission direction. As a result, even if the assistant is difficult to grasp the positional relationship between the wearer's eyes and the display surfaces 411 and 412, the relative position of the HMD 1 is adjusted while referring to the mark 62, and an appropriate relative It becomes possible to be a position.

  Therefore, for example, even when it is necessary to wear the HMD 1 during surgery, the HMD 1 can be worn as an appropriate relative position without the wearer touching the HMD 1 itself. This also enables the wearer to smoothly perform endoscopic surgery while viewing a comfortable 3D image.

  Even when the wearer cannot turn the front of the face toward the assistant, since the window 61 and the mark 62 are arranged on the left side 411 of the housing 41, the assistant is not attached to the wearer. It becomes possible to easily adjust the relative position from the side.

  Furthermore, since the window portion 61 according to the present embodiment is configured to be able to switch between a light-transmitting state and a light-blocking state by a liquid crystal shutter, the window portion 61 is in a light-blocking state when an image is observed, and suppresses the incidence of external light. be able to. As a result, the wearer's eyes can be exposed when worn and the relative position can be adjusted, and the image displayed on the display surfaces 421 and 422 can be shielded between the wearer and the housing 41 during image observation. Can be made easier to see.

  In addition, since the lengths of the bands 51 and 52 can be easily changed by the mounting portion 5 having the above configuration, the assistant can easily perform mounting, adjustment of the relative position, fixation, and the like.

<Second Embodiment>
8-13 is a figure which shows the structure of HMD10 which concerns on 2nd Embodiment of this technique, FIG.8, 9 is a schematic side view, FIG.10, 11 is a schematic front view, FIG.12, 13 is a wearer It is a schematic side view which shows the aspect which mounted | wore. In the figure, portions corresponding to those of the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the present embodiment, the main point different from the first embodiment is that the main body 40 includes a movable member 450 configured to open and close the window 610 of the reference unit 60. The movable member 450 is configured to support the display surfaces 421 and 422 and present an image to the wearer at a position where the window 610 is closed.

  The housing 410 according to the present embodiment has a left side surface 4110, a right side surface 4120, a front surface 4130, an upper surface 4150, and a lower surface 4160, as in the first embodiment, while an eyepiece surface. Does not have. An opening 4170 is formed in the front surface 4130 and the left and right side surfaces 4110 and 4120. The eyepiece and display surfaces 4210 and 4220 not included in the housing 410 are disposed on a movable member 450 described later.

  In the main body 40, a space S is formed inside the opening 4170 in the depth direction. The space S is configured to accommodate the movable member 450 at a first position described later. Furthermore, a housing region 4180 configured to be able to house a part of the movable member 450 at the second position is formed inside the housing 410 surrounded by the upper surface 4150, the left and right side surfaces 4110 and 4120, and the front surface 4130. Has been.

  On the other hand, as in the first embodiment, a window 610 is disposed on the left side surface 4110. For example, a mark 620 having the same shape as that of the first embodiment is arranged in the window 610. In the present embodiment, the window portion 610 is formed continuously and integrally with the opening portion 4170.

  The opening 4170 and the window 610 are made of, for example, a translucent plastic plate or glass plate. As a result, the opening 4170 and the window 610 have translucency so that the field of view of the wearer can be secured and the eyes of the wearer can be exposed through the window 610. In addition, the strength of the main body 40 can be increased, and foreign matter can be prevented from entering the space S, so that a more secure configuration can be achieved.

  The movable member 450 is configured to be movable between a first position where the window 610 is closed and a second position where the window 610 is opened. 8, 10, and 12 are a schematic side view and a front view showing a mode in which the movable member 450 is in the first position, respectively, and FIGS. 9, 11, and 13 are diagrams in which the movable member 450 is in the second position, respectively. It is the schematic side view and front view which show an aspect.

  In the present embodiment, the first position is configured such that the wearer is presented with an endoscopic image or the like on the display surfaces 421 and 422. On the other hand, in the second position, the opening 4170 secures the field of view of the wearer in front and side, and the wearer's eyes are exposed to an external assistant or the like through the window 610, so that the body 40 The relative position of each can be adjusted.

  That is, the movable member 450 includes two movable plates (first regions) 451 and 452 that face each other in the x-axis direction, and a movable casing (first region) that is connected to the movable plates 451 and 452 and supports the display surfaces 421 and 422. 2 region) 453. The movable plates 451 and 452 open and close the window 610 in accordance with the movement between the first and second positions. The movable housing 453 faces the opening 4170 at the first position.

  Furthermore, in the present embodiment, the movable member 450 has a movable shaft 454 that is arranged so as to be able to rotate the movable plates 451 and 452 with respect to the main body 40 and extends in the x-axis direction. Accordingly, the movable member 450 is configured to rotate around the movable shaft 454 (x axis) and move between the first position and the second position. Specifically, it is configured to rotate upward in the vertical direction around the x axis from the first position accommodated in the space S and move to the second position.

  The method for driving the movable member 450 is not particularly limited. For example, it may be configured to be driven manually by a wearer or an assistant. Thereby, the apparatus configuration can be simplified.

  Alternatively, the movable member 450 may be automatically movable by a driving source such as a motor. Accordingly, even when the wearer or the assistant cannot directly touch the HMD 10 during, for example, surgery, it can be moved by a switch or the like disposed in the processor unit 3 or the like.

  The movable housing 453 is accommodated in the space S at the first position. Specifically, the movable housing 453 is disposed so as to face the left and right side surfaces 4531 and 4532 disposed to face each other in the x-axis direction at the first position, and to face the y-axis direction at the first position. A front surface 4533 and an eyepiece surface 4532. The left and right side surfaces 4531 and 4532 are supported by the movable plates 451 and 452, respectively.

  In addition, left and right display surfaces 421 and 422 are arranged on the eyepiece surface 4534 of the movable housing 453. In addition, an image generation unit 44 of the image display unit 42 and left and right display elements 431 and 432 are disposed inside the movable housing 453. Accordingly, the movable housing 453 is configured such that image light is emitted in the y-axis direction from the display surfaces 421 and 422 at the first position.

  In the first position, the movable plates 451 and 452 are configured to close the window 610 and a part of the opening 4170. In the first position, the front surface 4533 and the left and right side surfaces 4531 and 4532 of the movable housing 453 are also configured to face the opening 4170 and close. In the present embodiment, since the movable plates 451 and 452, the front surface 4533, and the left and right side surfaces 4531 and 4532 are connected to each other, the entire window portion 610 and the opening portion 4170 are closed at the first position. It will be. Therefore, when an image is presented to the wearer at the first position, external light is shielded and a clear image can be presented to the wearer.

  In the second position, the movable housing 453 is housed in a housing area 4180 formed inside the housing 410. Thereby, the opening 4170 is opened, and the wearer's front and left and right visual fields can be secured through the space S.

  In the second position, the movable plates 451 and 452 rotate around the movable shaft 454 to open the window portion 610 and expose the eyes of the wearer through the window portion 610. Thereby, the relative position of the main body 40 with respect to the wearer's eyes can be adjusted while confirming the position of the wearer's eyes via the window 610.

  In the above embodiment, the main body 40 includes the movable member 450, so that, for example, an image display mode in which an image is presented to the wearer and a peripheral visual field securing mode in which the wearer's visual field is opened can be switched. It can be. Thereby, even if it is in the state where HMD10 was equipped, a peripheral visual field can be secured by moving movable member 450. Therefore, for example, even when a procedure other than endoscopic surgery is performed, it can be performed with the HMD 10 attached, and it is possible to quickly shift to endoscopic surgery simply by moving the position of the movable member 450. It becomes.

  Also in this embodiment, as in the first embodiment, since the reference portion 60 is provided, the window portion 610 is opened with the movable member 450 in the second position, and the wearer is prevented from wearing. The relative position of the housing 410 can be adjusted to an appropriate position.

  Further, after the housing 410 is set to an appropriate relative position with reference to the reference unit 60, the relative position can be maintained by the mounting unit 5 having the same configuration as that of the first embodiment, and thus the display mode is switched to the image display mode. It is not necessary to adjust the relative position for each degree. Therefore, for example, even during an operation that competes every moment, it is possible to make a configuration capable of more quickly shifting between endoscopic surgery and other treatments.

<Third Embodiment>
14-17 is a figure which shows the structure of HMD1A which concerns on 3rd Embodiment of this technique, FIG.14, 15 is a schematic side view, FIG.16, 17 is a schematic side view which shows the aspect which the wearer wore. . In the figure, portions corresponding to those of the first embodiment described above are denoted by the same reference numerals, and detailed description thereof is omitted.

  14 and 16 are schematic side views showing a state in which the mounting portion 5A and the housing 41A are separated from each other, and FIGS. 15 and 17 show a state in which the mounting portion 5A and the housing 41A are connected, respectively. It is a schematic side view. In this embodiment, the main point different from the first embodiment is that the mounting portion 5A includes a connecting portion 7 that removably connects the housing 41A and the mounting portion 5A. The reference unit 6A is arranged on the mounting unit 5A, and is configured to display the relative position of the wearer's eyes with respect to the connecting unit 7 to the outside.

  In the present embodiment, the mounting portion 5A includes bands 51A and 52A that are respectively mounted on the top and back of the wearer and a band 56A that is mounted on the front of the wearer. The bands 51A and 52A are attached via a band 56A and attachment members 541A and 542A, and an adjustment portion 53A (adjustment members 531A and 532A) having the same configuration as that of the first embodiment is attached.

  On the other hand, the band 56A is worn on the frontal head (for example, forehead) of the wearer. Further, the connecting portion 7 is disposed in the band 56A. In the present embodiment, the reference unit 6A is disposed in the band 56 band 53AA.

  In the present embodiment, the reference portion 6A displays the relative position of the wearer's eyes with respect to the connecting portion 7 in a state where the housing 41A is separated from the mounting portion 5A, that is, only the mounting portion 5A is mounted. Configured as follows.

  Specifically, the reference portion 6A includes a window portion 61A and a mark 62A. The window portion 61A has a translucent rectangular panel shape, and, for example, the lower left of the connecting portion 7 of the band 56A so that the eyes (for example, the left eye) of the wearer are transmitted when the mounting portion 5A is mounted. Placed in. On the other hand, the mark 62A has the same configuration as that of the first embodiment. That is, the mark 62A is disposed on the window 61A, is disposed at a height position facing the center of the display surfaces 421 and 422 disposed in the connected casing 41A in the x-axis direction, and extends in the y-axis direction. It has one existing linear configuration.

  The adjustment of the relative position of the wearer's eyes with respect to the connecting portion 7 by the reference portion 6A is performed by superimposing the center of the eyes (pupil position) on the mark 62A in the x-axis direction, as in the first embodiment. This is done by matching the extending direction of the mark 62A. Thus, when the mounting portion 5A and the housing 41A are connected by the connecting portion 7, the wearer's eyes and the display surfaces 421 and 422 are placed in the y-axis direction, that is, the image light emission direction from the display surfaces 421 and 422. Can be made to face each other.

  The connecting portion 7 allows the mounting portion 5A and the housing 41A to be detachable, and after the mounting portion 5A is mounted at an appropriate relative position and the mounting portion 5A and the housing 41A are connected, the display surfaces 421 and 422 are connected. And the wearer's eyes are connected so as to face each other in the y-axis direction, and the arrangement is fixed.

  The configuration of the connecting portion 7 is not particularly limited as long as the relative arrangement of the housing 41A can be fixed to the mounting portion 5A. For example, a configuration similar to that of a one-touch joint or the like can be used. Specifically, it includes an insertion portion 71 disposed in the band 56A and an insertion end portion 72 that is attached to the housing 41A side and can be inserted into the insertion portion 71.

  For example, the insertion portion 71 is configured such that the insertion end portion 72 can be inserted in the y-axis direction. Further, the inserted portion 71 has a lock mechanism having a known spring structure or the like, and is configured to be able to fix the arrangement of the insertion end portion 72 inserted by a predetermined amount. With such a configuration, the insertion end portion 72 on the housing 41A side is inserted into the inserted portion 71, whereby the arrangement of the housing 41A with respect to the mounting portion 5A is fixed.

  The housing 41A according to the present embodiment has the same configuration as that of the first embodiment as a whole. That is, the housing 41A includes a left side surface (first side surface) 411A and a right side surface (second side surface) 412A that face each other in the x-axis direction, a front surface 413A and an eyepiece surface 414A that face each other in the y-axis direction, It includes an upper surface 415A and a lower surface 416A that face each other in the z-axis direction.

  The left and right side surfaces 411A and 412A are configured to cover the left and right sides of the wearer's eyes. Accordingly, the wearer's eyes are covered from the left and right sides by the left and right side surfaces 411A and 412A, the external light is shielded, and a clearer image can be observed. Further, the reference portion 6A that is not referred to after connection can be configured to be accommodated inside the left and right side surfaces 411A and 412A.

  Next, an example of a method for mounting the HMD 1A according to this embodiment will be described. Here, a case will be described in which the wearer himself / herself wears only the mounting portion 5A that is separated while looking at a mirror or the like before surgery, and the case 41A is connected by an assistant or the like during surgery.

  First, the HMD 1A is prepared in a state where the housing 41A and the mounting portion 5A are separated. Here, similarly to the first embodiment, the bands 51A and 52A are adjusted to be longer than the length assumed at the time of wearing.

  Next, the mounting portion 5A is mounted on the head from above the wearer by the wearer, and the lengths of the bands 51A and 52A are temporarily adjusted by the adjusting members 531A and 532A. The band 51A is mounted on the top of the wearer, the band 52A is mounted on the back of the wearer, and the band 56A is mounted on the front of the wearer.

  Further, the relative position of the HMD 1A to the wearer is adjusted. Here, the wearer himself confirms the position of his (left) eye from the left side through the window 61A, and further refers to the mark 62A, so that the mark 62A and his own eye overlap in the x-axis direction. The relative position of the inserted portion 710 is adjusted so as to match. Thereby, after the connection, the relative position is adjusted such that the main body 4 is arranged so that the display surfaces 421 and 422 and the wearer's eyes are substantially opposed to each other in the y-axis direction.

  After the placement of the mounting portion 5A is adjusted to an appropriate relative position, the length of the band 52A is adjusted so that the relative position is fixed. Here, the length of the band 52A is adjusted to be shorter by the adjusting member 532A, and the forehead pad 55A and the band 52A sandwich the front-rear direction of the wearer's head so that the wearer 5A can move in the front-rear direction with respect to the wearer. The relative position is determined.

  The wearer performs a treatment that does not require the HMD 1A in a state where only the wearing portion 5A is worn. When endoscopic surgery is started during surgery, an assistant connects the housing 41A of the main body 4A to the mounting portion 5A by the connecting portion 7 instead of the wearer sterilizing the fingers. For example, a predetermined amount is inserted in the y-axis direction until the insertion end portion 72 on the housing 41A side is locked to the insertion portion 71 on the mounting portion 5A side.

  Thereby, the housing 41A and the mounting portion 5A are quickly connected, and the HMD 1A can present an endoscopic image to the wearer. At this time, by referring to the reference portion 6A, since the mounting portion 5A has already been adjusted to an appropriate relative position with respect to the wearer, the relative position of the HMD 1A as a whole can be appropriately adjusted without adjusting the relative position after connection. Adjusted to position.

  As described above, in the HMD 1A according to the present embodiment, the mounting portion 5A and the housing 41A are configured to be detachable by the connecting portion 7. Further, when only the separated mounting portion 5A is mounted, the relative position of the connecting portion 7 with respect to the wearer is adjusted by referring to the reference portion 6A. Thereby, HMD1A can be mounted | worn as an appropriate relative position after connection. Therefore, it is not necessary to adjust the relative position each time the HMD 1A is mounted, and the mounting time of the HMD 1A can be shortened.

  Thereby, when performing treatments other than endoscopic surgery that do not require an image presented by the HMD 1A, the treatment can be performed with only the mounting portion 5A. Therefore, the burden on the wearer can be reduced.

  Moreover, since the reference part 6A according to the present embodiment can adjust the relative position with the connecting part 7 arranged in the mounting part 5A, the wearer himself wears only the mounting part 5A, before surgery, etc. It is possible to adjust the relative position by itself. As a result, it is possible to obtain a desired wearing feeling of the wearer, and to reduce the burden of assisting wearing of the main body 4A (housing 41A) by an assistant or the like.

  The embodiment of the present technology has been described above, but the present technology is not limited to this, and various modifications can be made based on the technical idea of the present technology.

  In the first embodiment, the reference unit 6 includes a window 61 and a mark 62, and the mark 62 is arranged to extend in the y-axis direction at the height position of the center of the display surfaces 421 and 422. However, the present invention is not limited to this as long as the positions of the display surfaces 421 and 422 and the y-axis direction can be indicated.

  18A, 18 </ b> B, 18 </ b> C, 18 </ b> D, 18 </ b> E, and 18 </ b> F are schematic diagrams illustrating modifications of the reference unit 6. (A) is a modified example of the mark 62, and the mark 62a is a height at which the lower end of the pupil should be arranged when the display surfaces 421 and 422 and the wearer's eyes (pupil) face each other in the y-axis direction. In this position, it is constituted by a straight line extending in the y-axis direction. Accordingly, the lower end of the pupil is overlapped with the mark 62a and the direction of the line of sight coincides with the extending direction of the mark 62a, thereby enabling adjustment. (B) is an example in which the mark 62b is configured with an arrowhead, and the mark 62b is configured to indicate the position of the center of the pupil and the y-axis direction.

  FIG. 18C shows an example in which a mark 62c having the same configuration as the mark 62 is arranged on the semi-transparent window 61c. Such a reference unit 6 allows the wearer's eyes to pass through when wearing and enables adjustment of the relative position, while suppressing the amount of incident external light during image observation. Thereby, there is no need to switch between the light transmitting state and the light shielding state, and the apparatus configuration can be simplified. On the other hand, (D) is an example in which the transmittance is changed at a boundary 62d formed in parallel to the y-axis direction at a height position where the pupil of the window 61d is to be disposed. In this case, the index part 62d becomes the boundary 62d. This also makes it possible to adjust the relative position by overlapping the pupil with the boundary 62d and matching the direction of the line of sight with the extending direction of the boundary 62d. In addition, the amount of incident external light can be suppressed.

  FIG. 18E shows an example in which the mark 62e configured with an arrowhead as described in FIG. 18B is arranged not around the window 61e but around the window 61e. Further, (F) shows that the indicator portion 62f is a frame 62f of the window portion 61f. The lower end of the pupil is overlapped with the frame 62f, and the eye line is aligned with the extending direction (y-axis direction) of the frame 62f. The position can be adjusted.

  Note that the modification of the reference unit 6 as described above can also be applied to the second and third embodiments.

  In the above embodiment, although it was demonstrated that all the reference parts were arrange | positioned at the wearer's left side, it is not restricted to this. For example, it may be configured to be disposed on both the right side and the left side, or may be configured to be disposed only on the right side.

  In the first embodiment, it has been described that the window 61 is a liquid crystal shutter, but other configurations capable of switching between a light-transmitting state and a light-blocking state can be employed. For example, it is possible to arrange a physical shutter mechanism that can open and close the window 61. Moreover, when the external light which injects from the window part 61 does not become a hindrance to image observation, the window part 61 can always be made into a translucent state.

  In the second embodiment, it has been described that the movable member 450 has the movable shaft 454 and moves around the movable shaft 454 to move between the first and second positions. However, the present invention is not limited to this. Absent. For example, the movement between the first and second positions may be a vertical translation. That is, in the second position, the movable member 450 is retracted upward or downward from the space S, so that the field of view of the wearer can be secured.

  As an instruction method for driving the movable member 450 in the second embodiment, an example using a switch or the like has been described. For example, the following example can be used. That is, it is possible to adopt a configuration in which a detection unit capable of acquiring information related to the wearer's movement is arranged in the main body 40 and the position of the movable member 450 is switched based on the acquired information. Thereby, it can be set as the structure which can switch the position of the movable member 450, without touching HMD10 based on a wearer's intention.

  As a specific example of the detection unit, for example, a configuration including an angular velocity sensor or an acceleration sensor capable of detecting the motion of the wearer's head can be given. As a specific example, when the wearer moves up the head at a certain angle, it is possible to move from the first position to the second position so that the image can be displayed in an intuitive manner. The mode and the peripheral visual field securing mode can be switched.

  In addition, by adopting a configuration including a microphone as the detection unit, it is possible to recognize a predetermined sound emitted by a wearer or the like and switch the position of the movable member 450. Furthermore, it is also possible to adopt a configuration that includes an image sensor that can image the eyes of the wearer as the detection unit, and that switches the position of the movable member 450 by detecting the blink or line of sight of the wearer.

  The connection part 7 in 3rd Embodiment is not restricted to the above-mentioned structure. For example, any configuration can be adopted as long as the housing 41A and the mounting portion 5A are detachable and the arrangement can be fixed after connection, such as a known slide lock mechanism or a configuration using a strong magnet. .

In addition, this technique can also take the following structures.
(1) A case, an image display unit including a display surface configured to emit image light in the first axial direction, and a structure attached to the case and attachable to the head of the wearer A body having a mounting portion,
A head-mounted display, comprising: a reference unit disposed on the main body and displaying a relative position between the main body and a wearer's eyes to the outside.
(2) The head mounted display according to (1) above,
The reference section includes a window portion configured to expose the eyes of the wearer to the outside and disposed in the housing. Head mounted display.
(3) The head mounted display according to (2) above,
The reference unit further includes an indicator unit that is disposed in the window unit and that indicates the position of the display surface and the first axial direction.
(4) The head mounted display according to (3) above,
The said window part is a head mounted display comprised so that a light transmission state and a light-shielding state can be switched.
(5) The head mounted display according to (2) or (3) above,
The housing further includes first and second side surfaces facing a second axial direction orthogonal to the first axial direction,
The window portion is a head mounted display arranged on at least one of the first and second side surfaces.
(6) The head mounted display according to (5) above,
The main body further includes a movable member configured to be movable between a first position for closing the window portion and a second position for opening the window portion.
(7) The head mounted display according to (6) above,
The movable member has a first region that opens and closes the window, and a second region that supports the display surface,
The display surface emits image light in the first axial direction at the first position.
(8) The head mounted display according to (7) above,
The housing further includes an opening facing the second region at the first position.
(9) The head mounted display according to (1) above,
The mounting part further includes a connecting part that detachably connects the housing and the mounting part,
The reference unit is disposed in the mounting unit, and displays a relative position of the wearer's eyes with respect to the connecting unit to the outside.

1, 10, 1A: Head mounted display 4, 40, 4A ... Main body 5, 5A ... Mounting part 6, 60, 6A ... Reference part 7 ... Connection part 41, 410, 41A ..Case 42: Image display part 421, 422 ... Display surface 61, 610, 61A ... Window part 62, 620, 62A ... Indicator part (mark)
450 ... movable member 451, 452 ... movable plate (first region)
453 ... Movable housing (second region)
4170 ... opening

Claims (9)

A housing, an image display unit including a display surface configured to emit image light in a first axial direction, and a mounting configured to be mounted on the head of the wearer attached to the housing A body having a portion,
The main body, which is disposed at a side position of the wearer at the time of wearing and exposes the wearer's eyes to the outside, and indicates the position of the display surface and the first axial direction. A head-mounted display comprising: a reference portion having an indicator portion. The head mounted display according to claim 1,
The window portion is configured to be switchable between a light-transmitting state and a light-shielding state. The head mounted display according to claim 1,
The housing further includes first and second side surfaces facing a second axial direction orthogonal to the first axial direction,
The said window part is a head mounted display arrange | positioned in at least any one among said 1st and 2nd side surfaces. The head mounted display according to claim 3,
The main body further includes a movable member configured to be movable between a first position for closing the window portion and a second position for opening the window portion. The head mounted display according to claim 4,
The movable member has a first region that opens and closes the window, and a second region that supports the display surface,
The display surface emits image light in the first axial direction at the first position. The head mounted display according to claim 5,
The housing further includes an opening facing the second region at the first position. The head mounted display according to claim 1,
The mounting portion further includes a connecting portion that detachably connects the housing and the mounting portion,
The reference unit is disposed in the mounting unit, and presents the relative position of the wearer's eyes to the connection unit to the outside. An imaging device for imaging an affected area of a patient;
An image display unit that includes a display surface configured to emit image light in a first axial direction, and displays an image captured by the imaging device;
A main body having an attachment portion configured to be attachable to the surgeon's head;
The main body, which is disposed at a position on the side of the wearer at the time of wearing, and is an indicator for indicating the position of the display surface and the first axial direction, which exposes the wearer's eyes to the outside. And a head-mounted display having a reference portion including the same. The surgical system according to claim 8, wherein
A processor for processing an image captured by the imaging device;
A display device that displays an image captured by the imaging device so that a person other than the operator can grasp the image;
A surgical system further comprising:

Images