JPH02386A - Light-emitting diode array - Google Patents
Light-emitting diode arrayInfo
- Publication number
- JPH02386A JPH02386A JP1019710A JP1971089A JPH02386A JP H02386 A JPH02386 A JP H02386A JP 1019710 A JP1019710 A JP 1019710A JP 1971089 A JP1971089 A JP 1971089A JP H02386 A JPH02386 A JP H02386A
- Authority
- JP
- Japan
- Prior art keywords
- led
- emitting diode
- lens
- light
- pellets
- 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
Links
- 239000008188 pellet Substances 0.000 claims abstract description 18
- 239000000758 substrate Substances 0.000 claims abstract description 18
- 230000005611 electricity Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 238000012634 optical imaging Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Led Device Packages (AREA)
- Dot-Matrix Printers And Others (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
- Facsimile Heads (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は発光ダイオードペレットを多数個配列してなる
。ファクシミリの露光用光源や電子複写機の露光用また
はドラムの除電用光源あるいは表示装置用光源等に用い
る発光ダイオードプレイに関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention is formed by arranging a large number of light emitting diode pellets. The present invention relates to a light emitting diode display used as an exposure light source for a facsimile, an exposure light source for an electronic copying machine, a light source for removing static electricity from a drum, a light source for a display device, and the like.
（従来の技術）
ファクシミリの送信部原稿読取用光源や電子複写機の感
光ドラムに帯電した電荷を除去するための除電用光源な
どに、最近は発光ダイオード（以下ＬＥＤと称する。）
のベレットを多数個配列したプレイが用いられてきてい
る。このＬＥＤプレイは基板上に直線的に配列された複
数個のＬＥＤペレットを外枠で囲み、この外枠の開口部
に光結像用のレンズを備えている。(Prior Art) Recently, light emitting diodes (hereinafter referred to as LEDs) have been used as a light source for reading originals in the transmitting section of facsimile machines, and as a light source for neutralizing electricity to remove the electric charge accumulated on the photosensitive drum of electronic copying machines.
A play in which a large number of bullets are arranged has been used. In this LED play, a plurality of LED pellets linearly arranged on a substrate are surrounded by an outer frame, and an opening of the outer frame is provided with a lens for optical imaging.
従来のＬＥＤアレイは基板がベークライト板などのプリ
ント配線板からなるリジッドなものからなり、ＬＥＤを
等間隔で配列したＬＥＤアレイの照度は第２図の実線で
示した（Ａ線）のように端部の照度が低下する問題があ
る。このため基板に形成するＬＥＤベレットの端部の配
列間隔を中央部より狭くする必要があるが、このような
場合には基板へのＬＥＤのボンデング作業が面倒複雑で
高価になるなどの問題があった。The conventional LED array has a rigid substrate made of a printed wiring board such as a Bakelite board, and the illuminance of an LED array in which LEDs are arranged at equal intervals varies at the edges as shown by the solid line (line A) in Figure 2. There is a problem that the illuminance in the area decreases. For this reason, it is necessary to make the array spacing at the ends of the LED pellets formed on the board narrower than at the center, but in such a case, there are problems such as bonding the LEDs to the board becomes troublesome, complicated, and expensive. Ta.
（発明が解決しようとする課題）
従来の発光ダイオードアレイは、上記したよ５ＫＬＥＤ
が等間隔で配列されており、端部の照度が低下し、この
対策として端部の配列間隔を中央部より狭くすると基板
へのポンディング作業が複雑で高価になる問題があった
。(Problem to be solved by the invention) The conventional light emitting diode array is the 5K LED mentioned above.
are arranged at equal intervals, and the illuminance at the edges decreases.As a countermeasure to this problem, if the arrangement interval at the edges is made narrower than at the center, there is a problem in that the bonding work to the substrate becomes complicated and expensive.
本発明は上記問題を解決するための課題に対してなされ
たもので、照射面照度の向上および所望の照射面照度が
容易に得られる発光ダイオードアレイを提供することを
目的とする。The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a light emitting diode array that can improve the illuminance of the irradiated surface and easily obtain the desired illuminance of the irradiated surface.
（課題を解決するための手段）
本発明は複数個の発光ダイオードペレットまたは発光ダ
イオードランプをフレキシブルな基板に配列し、この基
板を高低部を有する取付体に取付けたことを特徴とする
発光ダイオードアレイである。(Means for Solving the Problems) The present invention provides a light emitting diode array characterized in that a plurality of light emitting diode pellets or light emitting diode lamps are arranged on a flexible substrate, and this substrate is attached to a mounting body having high and low parts. It is.
（作 用）
本発明発光ダイオードアレイは、上記したように発光ダ
イオードペレットまたは発光ダイオードランプを配列し
たフレキシブル基板が、高低部のある基板取付体に取着
されている構成である。したがって、上記発光ダイオー
ドペレットなどが配列されたフレキシブルな基板が高低
部のある基板取付体に取付けられているから、放射光の
照度分布がアレイの全長に亘ってフラットになる。(Function) The light emitting diode array of the present invention has a structure in which a flexible substrate on which light emitting diode pellets or light emitting diode lamps are arranged as described above is attached to a substrate mounting body having a raised and lowered portion. Therefore, since the flexible substrate on which the light emitting diode pellets and the like are arrayed is attached to a substrate mounting body with raised and lowered parts, the illuminance distribution of the emitted light becomes flat over the entire length of the array.
（実施例）
本発明の詳細を図示の実施例を参照して説明する。第１
図において、（１）は柔軟性のあるたとえばポリエステ
ル樹脂製のプリント配線板や金属製の配線板等の長尺の
基板で、この基板（１）上には複数個の発光ダイオード
ペレツ） （２） 、・・・・・・・・・（以下ＬＥＤ
ペレットと称する。）が略等間隔直線的に並べられボン
ディングされている。そして、（３）はＬＥＤペレツ）
ｆ２）、・・・・・・・・・の外周を囲む外枠で基板取
付体を構成している。また、（４）は外枠（３）に装着
された断面が略真円をなす透明の樹脂やガラス製の棒状
のレンズである。そして、上記外枠（３）の高さは中央
部が高く端部に行くにしたがって低く、すなわち端部が
レンズ（４）に近ずくよう傾斜部（３ａ）が形成の手段
で取付けられている。(Example) The details of the present invention will be explained with reference to the illustrated example. 1st
In the figure, (1) is a flexible long board such as a printed wiring board made of polyester resin or a metal wiring board, and a plurality of light emitting diode pellets (2) are mounted on this board (1). ) ,・・・・・・・・・(hereinafter referred to as LED
It is called a pellet. ) are arranged linearly at approximately equal intervals and bonded. And (3) is LED Perez)
An outer frame surrounding the outer periphery of f2), . Further, (4) is a rod-shaped lens made of transparent resin or glass and has a substantially perfect circular cross section and is attached to the outer frame (3). The height of the outer frame (3) is higher at the center and lower toward the ends, that is, the sloped portion (3a) is attached by means of forming so that the end approaches the lens (4). .
なお９図中（５）は基板（１）に形成した外枠（３）取
付用のねじ孔、（６）はＬＥＤアレイの複写機などへの
取付片である。In Figure 9, (5) is a screw hole for attaching the outer frame (3) formed on the substrate (1), and (6) is a piece for attaching the LED array to a copying machine or the like.
上述したような構成のＬＥＤアレイは、各々のＬＥＤペ
レツ［２）、・・・・・・・・・を基板（１）に設けた
配線（図示しない。）を通じ選択的に点灯が行なえ。The LED array configured as described above can be selectively illuminated through wiring (not shown) provided on the substrate (1) for each LED pellet [2], . . . .
ＬＥＤペレット（２）から発した光はレンズ（４）に直
接入射するもの、外枠（３）によって反射しレンズ（４
）に入射して、レンズ（４）外に放射される。そしてこ
れら放射光は外枠（３）によって指向性のあるものとな
り拡がりが抑制される。The light emitted from the LED pellet (2) enters the lens (4) directly, and the light that is reflected by the outer frame (3) is reflected by the lens (4).
) and is emitted to the outside of the lens (4). These emitted lights are made directional by the outer frame (3) and their spread is suppressed.
また、たとえばファクシミリの画像読取用や複写機感光
ドラムの除電の場合にはＬＥＤプレイの全長に亘リフラ
ットな照度分布が要求されるが。Further, for example, in the case of reading an image in a facsimile machine or removing static electricity from a photosensitive drum in a copying machine, a flat illuminance distribution is required over the entire length of the LED display.
本実施例のようにアレイの端部のＬ Ｅ Ｄ （２）を
レンズ（４）に近づければ第２図（Ｂ線）のような照度
分布となる。また、原稿照明装置用にはそのレンズ系の
特徴から第２図（Ｃ線）のような照度分布が得られる。If the LED (2) at the end of the array is brought closer to the lens (4) as in this embodiment, the illuminance distribution will be as shown in FIG. 2 (line B). Further, for an original illumination device, an illuminance distribution as shown in FIG. 2 (line C) can be obtained due to the characteristics of the lens system.
なお２本発明は上述の実施例に限らずたとえば複数個の
ＬＥＤペレットが基板上にマトリックス的に縦横に配列
されている表示装置用光源等に用いるアレイにも適用で
きるものである。また。Note that the present invention is not limited to the above-described embodiments, but can also be applied to an array used for a light source for a display device, etc., in which a plurality of LED pellets are arranged vertically and horizontally in a matrix on a substrate. Also.
ＬＥＤペレットは所要の光量に応じ１〜複数個を１ブロ
ツクとして隔壁によって囲みかつ点滅ができるようにし
てもよい。さらに、基板の外枠への取着あるいは外枠へ
のレンズの装着は溶着、接着。Depending on the required amount of light, one or more LED pellets may be made into one block and surrounded by a partition wall so that they can be blinked. Furthermore, mounting the board to the outer frame or attaching the lens to the outer frame is done by welding or gluing.
かしめ等であってもこれらを併用する手段であってもさ
しつかえない。さらにまた９本願はレンズを装着しない
ＬＥＤアレイにも適用が可能である。Even if it is caulking or a combination of these methods, there is no problem. Furthermore, the present invention can also be applied to an LED array without a lens.
本発明は上記実施例のように照射面に均一な照度を得る
場合に限らず、基板取付体を構成する外枠の所要部に高
低部を形成し、所望に応じ局部的に高照度部あるいは低
照度部を得るようにしてもよい。さらにまた９本願は発
光ダイオードランプをペレットと置き換えても同じ作用
効果がある。The present invention is not limited to the case where uniform illuminance is obtained on the irradiation surface as in the above embodiment, but the present invention is not limited to the case where uniform illuminance is obtained on the irradiation surface as in the above embodiment. It is also possible to obtain a low illuminance part. Furthermore, in the present invention, even if the light emitting diode lamp is replaced with pellets, the same effect can be obtained.
本発明は以上詳述したように、複数個のＬＥＤペレット
やＬＥＤランプを配列したフレキシブル基板を、高低部
が形成された取付体に取着したことを特徴とするＬＥＤ
アレイで、基板の各ＬＥＤの間隔をボンデングマシンな
どにより均一に配列しても、均一の照度あるいは明暗差
のある照度など所望の照度分布が極めて容易に実現でき
るＬＥＤアレイを提供できる。As described in detail above, the present invention provides an LED characterized in that a flexible substrate on which a plurality of LED pellets or LED lamps are arranged is attached to a mounting body having high and low parts.
Even if the distances between the LEDs on the substrate are arranged uniformly using a bonding machine or the like, it is possible to provide an LED array that can extremely easily achieve a desired illuminance distribution, such as uniform illuminance or illuminance with differences in brightness and darkness.
第１図は本発明の一実施例を示す分解斜視図。 第２図は照度分布を示す特性図である。 （１）・・・・・・フレキシブル基板。 （２）・・・・・・発光ダイオードペレット。 （発光ダイオードランプ） （３）・・・・・・基板取付体（外枠）。 （３ａ）・・・・・・高低部。 （４）・・・・・・レンズ。 FIG. 1 is an exploded perspective view showing one embodiment of the present invention. FIG. 2 is a characteristic diagram showing the illuminance distribution. (1)...Flexible substrate. (2)...Light-emitting diode pellets. (Light emitting diode lamp) (3)...... Board mounting body (outer frame). (3a)...High and low parts. (4)...Lens.
Claims (1)
ランプを配列したフレキシブル基板を高低部が形成され
た基板取付体に取着したことを特徴とする発光ダイオー
ドアレイ。A light-emitting diode array characterized in that a flexible substrate on which a plurality of light-emitting diode pellets or light-emitting diode lamps are arranged is attached to a substrate mounting body having a raised and lowered portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1019710A JPH02386A (en) | 1989-01-31 | 1989-01-31 | Light-emitting diode array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1019710A JPH02386A (en) | 1989-01-31 | 1989-01-31 | Light-emitting diode array |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02386A true JPH02386A (en) | 1990-01-05 |
Family
ID=12006846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1019710A Pending JPH02386A (en) | 1989-01-31 | 1989-01-31 | Light-emitting diode array |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02386A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04112557U (en) * | 1991-03-19 | 1992-09-30 | スタンレー電気株式会社 | Image reading device light source |
| US5187377A (en) * | 1988-07-15 | 1993-02-16 | Sharp Kabushiki Kaisha | LED array for emitting light of multiple wavelengths |
| US5504514A (en) * | 1992-02-13 | 1996-04-02 | Texas Instruments Incorporated | System and method for solid state illumination for spatial light modulators |
| WO2006054454A1 (en) * | 2004-11-19 | 2006-05-26 | Fukuoka Technoken Kogyo, Co., Ltd. | Thermal discharge print head |
| US8191491B2 (en) | 2009-03-31 | 2012-06-05 | Brother Kogyo Kabushiki Kaisha | Sewing machine and computer-readable medium storing control program executable on sewing machine |
-
1989
- 1989-01-31 JP JP1019710A patent/JPH02386A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5187377A (en) * | 1988-07-15 | 1993-02-16 | Sharp Kabushiki Kaisha | LED array for emitting light of multiple wavelengths |
| JPH04112557U (en) * | 1991-03-19 | 1992-09-30 | スタンレー電気株式会社 | Image reading device light source |
| US5504514A (en) * | 1992-02-13 | 1996-04-02 | Texas Instruments Incorporated | System and method for solid state illumination for spatial light modulators |
| WO2006054454A1 (en) * | 2004-11-19 | 2006-05-26 | Fukuoka Technoken Kogyo, Co., Ltd. | Thermal discharge print head |
| US8191491B2 (en) | 2009-03-31 | 2012-06-05 | Brother Kogyo Kabushiki Kaisha | Sewing machine and computer-readable medium storing control program executable on sewing machine |
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