JPH10144964A - Led lamp - Google Patents

Led lamp

Info

Publication number
JPH10144964A
JPH10144964A JP29547296A JP29547296A JPH10144964A JP H10144964 A JPH10144964 A JP H10144964A JP 29547296 A JP29547296 A JP 29547296A JP 29547296 A JP29547296 A JP 29547296A JP H10144964 A JPH10144964 A JP H10144964A
Authority
JP
Japan
Prior art keywords
convex lens
diffusion filter
led
led lamp
led substrate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP29547296A
Other languages
Japanese (ja)
Inventor
Shunichi Takasu
俊一 高須
Masato Yamazaki
正人 山崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Metro Denki Kogyo Co Ltd
Original Assignee
Metro Denki Kogyo Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metro Denki Kogyo Co Ltd filed Critical Metro Denki Kogyo Co Ltd
Priority to JP29547296A priority Critical patent/JPH10144964A/en
Publication of JPH10144964A publication Critical patent/JPH10144964A/en
Pending legal-status Critical Current

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  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Led Device Packages (AREA)
  • Led Devices (AREA)

Abstract

PROBLEM TO BE SOLVED: To freely control color of an emitted light by arranging an LED substrate having red, blue and green LED chips, a diffusion filter and a convex lens in a line and by applying surface-coarsing processing on the surface of the convex lens. SOLUTION: An LED substrate 4 which is provided with three kinds of red, blue and green LED chips 4a-4c, a diffusion filter 3 and a convex lens 2 are arranged in a line maintaining a predetermined distance each other, and a surface of the convex lens 2 is made surface-coarsing processing. For example the convex lens 2, the diffusion filter 3 and the LED substrate 4 is contained in a glass vessel 1 having a test tube shape of which closed terminal surface is formed as the convex lens 2 so as to locate keeping a predetermined distance by the presence of cylinder shape spacers 9 and 10 therebetween. The diffusion filter 3 is made of a transparent a crylic resin with a cylindrical shape, of which the both surfaces are made to be coarse surface processed. Inert gas is preferably sealed in the glass vessel 1, which contains the LED substrate 4 and the diffusion filter 3 to protect the LED chips 4a-4c.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、発光色を自由にコ
ントロールできるLEDランプに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an LED lamp whose emission color can be freely controlled.

【0002】[0002]

【従来の技術】LED発光素子は、赤色と緑色に加え青
色が新たに開発され、それら三原色の組み合わせによ
り、所望の色を表示できるLEDランプも製品化されて
いる。又、そのLEDランプを電光表示板に使用するこ
とで、テレビ画面に匹敵するカラフルな表示も可能とな
った。そのようなLEDランプとしては、従来、図4に
示すように、色の異なる複数のLED素子11,11・
・を隣り合わせに組み合わせて全面全開放の容器12に
収容し、各チップの明るさを変えて全体としての色合い
を調整できるように構成したものであった。
2. Description of the Related Art In addition to red and green, blue has been newly developed as an LED light emitting element, and an LED lamp capable of displaying a desired color by a combination of these three primary colors has been commercialized. In addition, by using the LED lamp for an electric display panel, a colorful display comparable to a television screen has become possible. Conventionally, as such an LED lamp, as shown in FIG. 4, a plurality of LED elements 11, 11,.
Were combined in a side-by-side manner and housed in a fully open container 12, and the brightness of each chip was changed to adjust the overall color tone.

【0003】[0003]

【発明が解決しようとする課題】前記従来のLEDラン
プは、各LED素子11,11・・が表出しているの
で、遠方からは一色として認識されるが、接近するに従
ってLED素子11,11・・個々の色が明確に区別で
きてしまい、三原色から成る各ドットの粗さが目立って
しまう。電光表示板に使用しても、独立した三原色の集
合で構成されることには変わりなく、図5に例示するよ
うに解像度が悪く、くっきりとした表示は望めないし、
純粋な白色単体の発光表示ができないといった致命的な
欠点があった。
In the above-mentioned conventional LED lamp, since each LED element 11, 11,... Is exposed, it is recognized as one color from a distance, but as it approaches, the LED elements 11, 11,. The individual colors can be clearly distinguished, and the roughness of each dot composed of the three primary colors becomes noticeable. Even if it is used for an electric light display panel, it is still composed of a set of independent three primary colors, and as shown in FIG. 5, the resolution is poor and a clear display cannot be expected,
There is a fatal disadvantage that pure white light emission cannot be displayed.

【0004】[0004]

【課題を解決するための手段】本発明は、接近位置から
でも、三原色が混じり合ったフルカラー表示を可能とし
たLEDランプであって、その構成は、赤、青、緑三種
類のLEDチップを備えたLED基板と、拡散フィルタ
及び凸レンズとを互いに所定間隔を保って一直線上に配
置し、前記凸レンズの表面に粗面処理を施したことにあ
る。そして前記LEDランプは、閉塞端面が凸レンズに
形成された試験管形状のガラス容器内に、筒状スペーサ
の介在によって前記凸レンズと拡散フィルタ及びLED
基板とが所定間隔を保つよう位置決めされた状態で収容
することによって具現化される。又、拡散フィルタは、
円柱形の透明アクリル樹脂体の表裏両面を粗面処理した
ものが採用でき、前記LED基板と拡散フィルタとを収
容したガラス容器内には、不活性ガスを封入し、LED
チップを保護することが望ましい。
SUMMARY OF THE INVENTION The present invention is directed to an LED lamp which enables full-color display in which three primary colors are mixed even from an approaching position. The structure of the LED lamp includes three types of red, blue and green LED chips. The LED substrate, the diffusion filter, and the convex lens are arranged on a straight line with a predetermined interval therebetween, and the surface of the convex lens is roughened. The LED lamp has a convex tube, a diffusion filter, and an LED in a test tube-shaped glass container having a closed end surface formed in a convex lens, with a cylindrical spacer interposed therebetween.
This is embodied by accommodating the substrate in a state where it is positioned so as to keep a predetermined interval. Also, the diffusion filter
A cylindrical transparent acrylic resin body having both front and back surfaces roughened can be adopted, and an inert gas is sealed in a glass container containing the LED substrate and the diffusion filter.
It is desirable to protect the chip.

【0005】[0005]

【発明の実施の形態】本発明に係るLEDランプの実施
例を、図面に基づいて説明する。図1はLEDランプを
分解して示し、図2は組み立てられた状態を示したそれ
ぞれ説明図であって、1は試験管形状をしたガラス容器
で、先端部は凸レンズ2になっていて、全内表面は粗面
(擦りガラス面)処理されている。3は前記容器内に収
容される拡散フィルタで、透明アクリル製の円柱形に形
成され、両平面はサンドペーパで粗面処理されている。
4は、円形基板の表面に赤、青、緑のそれぞれ単色光源
である従来の発光素子に該当するLEDチップ4a,4
b,4cが、各色一個づつ取り付けられたLED基板で
あって、各LEDチップ4a,4b,4cに対し、アー
ス側に接続した共通した1本の金属線5と、個々のプラ
ス側に接続した3本の金属線5,5・・とが裏面にて互
いに絶縁を保ち、ガラス溶着手段6にて束ねられ、各金
属線5,5・・に接続されたリード線7,7・・が後方
に導出され、その先端にはプラグ8が連結されている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an LED lamp according to the present invention will be described with reference to the drawings. FIG. 1 is an exploded view showing an LED lamp, and FIG. 2 is an explanatory view showing an assembled state, wherein 1 is a glass container in the shape of a test tube, and the tip is a convex lens 2; The inner surface is roughened (ground glass surface). Reference numeral 3 denotes a diffusion filter housed in the container, which is formed in a transparent acrylic column shape, and both surfaces of which are roughened with sandpaper.
Reference numeral 4 denotes LED chips 4a and 4 corresponding to conventional light emitting elements, which are monochromatic light sources of red, blue and green, respectively, on the surface of a circular substrate.
b and 4c are LED boards mounted one by one for each color, and each LED chip 4a, 4b and 4c is connected to one common metal wire 5 connected to the ground side and to each plus side. The three metal wires 5, 5,... Are insulated from each other on the back surface, are bundled by the glass welding means 6, and the lead wires 7, 7,. And a plug 8 is connected to the tip.

【0006】前記拡散フィルタ3及びLED基板4と
は、ガラス容器1内へ筒状のスペーサ7,8と交互に挿
入することにより、凸レンズ2と拡散フィルタ3の間
と、拡散フィルタ3とLED基板4間とが、それぞれス
ペーサ9,10の幅にあたる所定間隔離れて一直線状に
収納配置される。そして前記LED基板4を押し込んだ
ら、ガラス容器1の後端開口部を封止する。
The diffusion filter 3 and the LED substrate 4 are alternately inserted into the glass container 1 with the cylindrical spacers 7 and 8 so that the space between the convex lens 2 and the diffusion filter 3 and between the diffusion filter 3 and the LED substrate The four spaces are linearly housed and arranged at a predetermined interval corresponding to the width of the spacers 9 and 10, respectively. When the LED substrate 4 is pushed in, the rear end opening of the glass container 1 is sealed.

【0007】このように形成されたLEDランプは、ス
ペーサ9,10を介して各部材がガラス容器内に、所定
の間隔を保って確実に位置決めされ、効率よく組み付け
られ、長細い電球形状の製品となる。そしていずれか1
個のLEDチップにのみ通電すれば、その通電されたL
EDチップの色の光が先端部から放射され、しかもその
光は、拡散フィルターの通過によって一旦散乱した光
を、凸レンズの集光力によって再度集束し、それを更に
乱反射させた散乱光を前方に放射するので、レンズ面い
っぱいに均一した明るさの光が広がり、恰も、レンズ面
全体が発光している印象を与える。
In the LED lamp thus formed, each member is securely positioned at predetermined intervals in the glass container via the spacers 9 and 10, is efficiently assembled, and has a long and thin bulb shape. Becomes And any one
If only LED chips are energized, the energized L
The light of the color of the ED chip is emitted from the tip, and the light is once again scattered by passing through the diffusion filter, is refocused by the condensing power of the convex lens, and the scattered light that is diffusely reflected is further forward. Since the light is emitted, light of uniform brightness spreads over the entire lens surface, giving an impression that the entire lens surface emits light.

【0008】単一のLEDチップを個々発光させた場合
は各チップ特有の発色光を放つが、例えば、赤と緑の光
を放つLEDチップを発光させればオレンジ系の色とな
り、赤、緑、青のLEDを総て発光させれば白色光を放
ち、いずれの色も混ざり合った一色のみで、三色のLE
Dチップが収容されていることは、外部から全く推測で
きない。又各LEDチップへの通電量をコントロールす
ることで、色を変化させることが可能となり、電光掲示
板に使用すれば、フルカラーでの描写及び解像力は桁違
いに向上し、接近位置で見ても違和感が少ない。
When a single LED chip emits light individually, it emits color light unique to each chip. For example, when an LED chip that emits red and green light emits light, the color becomes orange, red and green. If all the blue LEDs emit light, they emit white light, and only one color is mixed.
It cannot be inferred from the outside that the D chip is accommodated. In addition, by controlling the amount of electricity to each LED chip, it is possible to change the color, and if used on an electronic bulletin board, the full color depiction and resolution will be improved by orders of magnitude, and even when viewed from a close position, it will be uncomfortable Less is.

【0009】尚実施例では、凸レンズを備えたガラス容
器内に、拡散フィルタとLEDチップとを封入して一体
化したが、金属製の筒体内に凸レンズと拡散フィルタ及
びLED基板とを所定間隔で配置して形成することも可
能であるし、ガラス容器内に封入する場合は、窒素など
の不活性ガスを充填するのが望ましい。又、電気的接続
は、導出されたリード線を利用するばかりでなく、複数
ピンを有した端子付きの口金を設け、ワンタッチで装着
できるようにもできる。
In this embodiment, the diffusion filter and the LED chip are sealed and integrated in a glass container having a convex lens. However, the convex lens, the diffusion filter and the LED substrate are arranged at a predetermined interval in a metal cylinder. It is also possible to arrange and form, and when enclosing in a glass container, it is desirable to fill with an inert gas such as nitrogen. The electrical connection can be made not only by using the lead wires that have been led out, but also by providing a base with a terminal having a plurality of pins so that the terminal can be mounted with one touch.

【0010】凸レンズと拡散フィルタ及びLEDチップ
との間隔は、凸レンズの焦点距離や粗面度などによって
特定はできないが、少なくとも凸レンズと拡散フィルタ
との間、及び拡散フィルタとLED基板(LEDチップ
の先端)とは、数ミリ以上離すことが必要であり、拡散
フィルタは必須である。
The distance between the convex lens, the diffusion filter, and the LED chip cannot be specified by the focal length or the roughness of the convex lens, but at least between the convex lens and the diffusion filter, and between the diffusion filter and the LED substrate (the tip of the LED chip). ) Must be separated by several millimeters or more, and a diffusion filter is indispensable.

【0011】又、拡散フィルタとしては、透明なアクリ
ル樹脂の両表面を、サンドペーパですることにより粗面
処理するばかりでなく、不透明なアクリル樹脂や、ガラ
スの細粒をアクリル樹脂で固めたものなど、光源がぼや
けて存在を確認できないように乱反射させる機能を有す
るものであれば、実施例以外のものも採用できる。更
に、LED基板に取り付けるLEDチップは、各色1個
ずつでもよいが、基板面にLEDチップと配線のスペー
スがあれば、複数個ずつ取り付けてもかまわないし、筒
体に、凸レンズや拡散フィルタ、LED基板などを所定
間隔を保って移動しないように接着してスペーサを省略
してもよい。
In addition, as a diffusion filter, not only the both surfaces of a transparent acrylic resin are roughened by sandpaper, but also an opaque acrylic resin or a material obtained by solidifying fine glass particles with the acrylic resin. In addition, as long as the light source has a function of irregularly reflecting the light so that the presence of the light source cannot be confirmed, a light source other than the embodiment can be employed. Furthermore, the LED chip attached to the LED substrate may be one for each color, but if there is space for the LED chip and the wiring on the substrate surface, a plurality of LED chips may be attached. The spacer may be omitted by adhering the substrate or the like so as not to move at a predetermined interval.

【0012】このように形成されたLEDランプを使用
することによって電光掲示板によるディスプレイ効果は
図3に例示するように解像力が一段と向上し、特にブラ
ウン管では実現できない超大型画面に威力を発揮する。
By using the LED lamp thus formed, the display effect of the electronic bulletin board is further improved in resolution as shown in FIG. 3, and is particularly effective for a super-large screen which cannot be realized by a cathode ray tube.

【0013】[0013]

【発明の効果】本発明のLEDランプは、3種類のLE
Dチップの組み合わせにより、白色を含む所望の発光色
を自由に選択するフルカラー表示が可能となり、従来の
ような原色の細かいドットを組み合わせたものと違い、
各LEDランプの色そのものが特定の発光色を放つの
で、美観に優れ、違和感を起こさせない。そして閉塞側
面が凸レンズに形成されたガラス容器に、スペーサを介
して拡散フィルタとLED基板とを収容するよう構成す
れば、各部材がスペーサにより確実に位置決めされて効
率よく組み付けられるし、電球と同じように取り扱いで
きる。又、アクリル樹脂体の両面を粗面処理した拡散フ
ィルタを採用すれば、形成容易で安価にて供給でき、ガ
ラス容器内に不活性ガスを封入してLEDチップを保護
すれば、耐久性も向上する。
The LED lamp of the present invention has three types of LEs.
The combination of D chips enables full-color display in which desired emission colors including white can be freely selected, and unlike the conventional combination of fine dots of primary colors,
Since the color of each LED lamp emits a specific light emission color, it is excellent in aesthetic appearance and does not cause discomfort. Then, if the diffusion filter and the LED substrate are accommodated in the glass container having the closed side formed in the convex lens via the spacer, the respective members are securely positioned by the spacer and efficiently assembled, and are the same as the electric bulb. Can be handled as follows. In addition, if a diffusion filter with both surfaces of the acrylic resin body roughened is adopted, it can be easily formed and can be supplied at low cost, and if an inert gas is sealed in a glass container to protect the LED chip, the durability will be improved. I do.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明に係るLEDランプの構造を示す分解説
明図である。
FIG. 1 is an exploded view showing the structure of an LED lamp according to the present invention.

【図2】組み付けされたLEDランプの説明図である。FIG. 2 is an explanatory diagram of an assembled LED lamp.

【図3】電光掲示板での使用例を示す説明図である。FIG. 3 is an explanatory diagram showing an example of use in an electric bulletin board.

【図4】従来のLEDランプを示す説明図である。FIG. 4 is an explanatory view showing a conventional LED lamp.

【図5】従来のLEDランプを電光掲示板に使用した一
例を示す説明図である。
FIG. 5 is an explanatory diagram showing an example in which a conventional LED lamp is used for an electric bulletin board.

【符号の説明】[Explanation of symbols]

1・・ガラス容器、2・・凸レンズ、3・・拡散フィル
タ、4・・LED基板、4a,4b,4c・・LEDチ
ップ、5・・金属線、6・・ガラス溶着手段、7・・リ
ード線、8・・プラグ、9,10・・スペーサ、11・
・LED素子、12・・容器。
1. Glass container, 2. Convex lens, 3. Diffusion filter, 4. LED board, 4a, 4b, 4c, LED chip, 5, Metal wire, 6, Glass welding means, 7, Lead Wire, 8 plug, 9, 10 spacer, 11
-LED element, 12 ... container.

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 赤、青、緑三種類のLEDチップを備え
たLED基板と、拡散フィルタ及び凸レンズとを互いに
所定間隔を保って一直線上に配置し、前記凸レンズの表
面に粗面処理を施して成るLEDランプ。
An LED substrate having three types of red, blue and green LED chips, a diffusion filter and a convex lens are arranged on a straight line at a predetermined interval from each other, and the surface of the convex lens is subjected to a roughening treatment. LED lamp.
【請求項2】 閉塞端面が凸レンズに形成された試験管
形状のガラス容器内に、筒状スペーサの介在によって前
記凸レンズと拡散フィルタ及びLED基板とが所定間隔
を保つよう位置決めされた状態で収容した請求項1に記
載のLEDランプ。
2. A test tube-shaped glass container having a closed end surface formed as a convex lens, and housed in a state where the convex lens, the diffusion filter, and the LED substrate are positioned so as to maintain a predetermined distance by interposing a cylindrical spacer. The LED lamp according to claim 1.
【請求項3】 拡散フィルタが、円柱形の透明アクリル
樹脂体の表裏両面を粗面処理して成る請求項1乃至2の
いずれかに記載したLEDランプ。
3. The LED lamp according to claim 1, wherein the diffusion filter is formed by roughening the front and back surfaces of a cylindrical transparent acrylic resin body.
【請求項4】 前記LED基板と拡散フィルタとを収容
したガラス球内に不活性ガスを封入した請求項2及至3
のいずれかに記載したLEDランプ。
4. An inert gas is sealed in a glass bulb containing the LED substrate and the diffusion filter.
The LED lamp described in any one of the above.
JP29547296A 1996-11-07 1996-11-07 Led lamp Pending JPH10144964A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29547296A JPH10144964A (en) 1996-11-07 1996-11-07 Led lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29547296A JPH10144964A (en) 1996-11-07 1996-11-07 Led lamp

Publications (1)

Publication Number Publication Date
JPH10144964A true JPH10144964A (en) 1998-05-29

Family

ID=17821047

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29547296A Pending JPH10144964A (en) 1996-11-07 1996-11-07 Led lamp

Country Status (1)

Country Link
JP (1) JPH10144964A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000047930A1 (en) * 1999-02-09 2000-08-17 Nakanishi Inc. Lighting device
KR100788382B1 (en) * 2000-12-13 2007-12-31 엘지.필립스 엘시디 주식회사 Backlight Unit of LCD
JP2011082420A (en) * 2009-10-09 2011-04-21 Stanley Electric Co Ltd Light emitting diode and method of manufacturing the same
JP2012190917A (en) * 2011-03-09 2012-10-04 Stanley Electric Co Ltd Light emitting diode and manufacturing method of the same
US11177878B2 (en) * 2018-02-26 2021-11-16 Lumeova, Inc. Methods, devices, and systems for integration, beam forming and steering of ultra-wideband, wireless optical communication devices and systems

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000047930A1 (en) * 1999-02-09 2000-08-17 Nakanishi Inc. Lighting device
US6523979B1 (en) 1999-02-09 2003-02-25 Nakanishi, Inc. Lighting device
KR100788382B1 (en) * 2000-12-13 2007-12-31 엘지.필립스 엘시디 주식회사 Backlight Unit of LCD
JP2011082420A (en) * 2009-10-09 2011-04-21 Stanley Electric Co Ltd Light emitting diode and method of manufacturing the same
JP2012190917A (en) * 2011-03-09 2012-10-04 Stanley Electric Co Ltd Light emitting diode and manufacturing method of the same
US11177878B2 (en) * 2018-02-26 2021-11-16 Lumeova, Inc. Methods, devices, and systems for integration, beam forming and steering of ultra-wideband, wireless optical communication devices and systems
US11251865B2 (en) 2018-02-26 2022-02-15 Lumeova, Inc. Methods, devices, and systems for integration, beam forming and steering of ultra-wideband, wireless optical communication devices and systems
US11671175B2 (en) 2018-02-26 2023-06-06 Lumeova, Inc. Methods, devices, and systems for integration, beam forming and steering of ultra-wideband, wireless optical communication devices and systems
US12244342B2 (en) 2018-02-26 2025-03-04 Lumeova, Inc. Methods, devices, and systems for integration, beam forming and steering of ultra-wideband, wireless optical communication devices and systems

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