JPH0436592B2 - - Google Patents
Info
- Publication number
- JPH0436592B2 JPH0436592B2 JP60038286A JP3828685A JPH0436592B2 JP H0436592 B2 JPH0436592 B2 JP H0436592B2 JP 60038286 A JP60038286 A JP 60038286A JP 3828685 A JP3828685 A JP 3828685A JP H0436592 B2 JPH0436592 B2 JP H0436592B2
- Authority
- JP
- Japan
- Prior art keywords
- light emitting
- curved surface
- main body
- luminous flux
- led
- 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.)
- Expired - Lifetime
Links
- 230000004907 flux Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/0091—Reflectors for light sources using total internal reflection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/04—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages the fastening being onto or by the light source
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
- H01L33/60—Reflective elements
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は信号灯、車輌用灯具、各種表示灯、光
通信装置及び各種センサーの光源として使用され
る可視光又は赤外線を放射する発光ダイオードに
関するものである。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a light emitting diode that emits visible light or infrared rays and is used as a light source for signal lights, vehicle lights, various indicator lights, optical communication devices, and various sensors. It is.
一般にこの種の光源として使用される発光ダイ
オードは何等加工されることなく発光ダイオード
単体（以下LED本体と称す）で使用され、その
一例が第２図に示した通りの構成である。即ち
LED本体１は２本のリードフレーム２，３を有
し、内部には前記リードフレームの一方に発光素
子４をマウントし、他方のリードフレームとの間
にワイヤー５をボンデイングした構成である。
Generally, a light emitting diode used as this type of light source is used as a single light emitting diode (hereinafter referred to as an LED body) without any processing, and one example of this is the configuration shown in FIG. 2. That is,
The LED main body 1 has two lead frames 2 and 3, and has a structure in which a light emitting element 4 is mounted inside one of the lead frames and a wire 5 is bonded between it and the other lead frame.
このような構成のLED本体１から放射される
光束の内、発光素子４から球面状のレンズ部１ａ
に向う光束ａはレンズ部１ａによつてほとんど前
面側に略平行光線として放射されるが、レンズ部
１ａに当つた光束の一部は内面反射して側面方向
に向う無効な光束a′となる。又、発光素子４から
直ちに側面に向う光束ｂもほとんどが利用されな
い無効な光束となつている。従つて、発光素子４
から放射される光束の内半分以上が利用されない
ものとなり、全体的に暗い光源となつている。 Among the luminous flux emitted from the LED main body 1 having such a configuration, the spherical lens portion 1a is emitted from the light emitting element 4.
The luminous flux a directed toward the lens part 1a is emitted as a substantially parallel ray toward the front side by the lens part 1a, but a part of the luminous flux that hits the lens part 1a is internally reflected and becomes an invalid luminous flux a' directed toward the side. . Furthermore, most of the light beam b immediately directed toward the side surface from the light emitting element 4 is an ineffective light beam that is not used. Therefore, the light emitting element 4
More than half of the luminous flux emitted from the light source is not used, resulting in an overall dark light source.
本発明は従来例のLED本体における発光素子
から放射される光束が有効に利用されていないと
いう問題点を解決しようとするものである。
The present invention aims to solve the problem that the luminous flux emitted from the light emitting element in the conventional LED body is not effectively utilized.
本発明は前記従来例における問題点を解決する
具体的手段として、LED本体と、該LED本体が
嵌着する貫通孔を中央部に設けた光透過性の反射
部材とからなり、前記反射部材の背面側は前記
LED本体から側面方向に放射される光束を前面
側に略平行光線として反射させるドーム状の第１
の曲面と第２の曲面とに形成し、該第１の曲面と
第２の曲面との間に逆Ｖ字状の溝を設けたことを
特徴とする発光ダイオードを提供するものであつ
て、反射部材の第１の曲面と第２の曲面とによつ
て発光素子から直接側面に放射される光束とレン
ズ部で内部反射して側面に向う光束とを全て前面
側に略平行光線として反射させるための光束の利
用度が著しくアツプするのである。
As a specific means for solving the problems in the conventional example, the present invention comprises an LED main body and a light-transmissive reflective member having a through hole in the center into which the LED main body is fitted. The back side is the same as above.
A dome-shaped first ray that reflects the luminous flux emitted from the LED body in the side direction toward the front side as approximately parallel rays.
Provided is a light emitting diode, characterized in that it is formed on a curved surface and a second curved surface, and an inverted V-shaped groove is provided between the first curved surface and the second curved surface, The first curved surface and the second curved surface of the reflecting member reflect the light beam directly emitted from the light emitting element to the side surface and the light beam internally reflected by the lens portion and directed toward the side surface toward the front side as substantially parallel light beams. This significantly increases the utilization of luminous flux.
次に本発明を図示の実施例により説明する。
尚、LED本体１自体は従来例と同一形状のもの
を使用しているので、同一符号を付してその説明
を省略する。第１図において、LED本体１が嵌
着される反射部材６は光透過性の樹脂又はゴムで
全体形状が略椀形を呈するように形成されてい
る。この反射部材６の略中央部に前記LED本体
１が嵌着される貫通孔７が形成されると共に背面
側はLED本体１の発光素子４から側面に放射さ
れる光束ｂを前面側に略平行光線として反射させ
るドーム状の第１の曲面８と、前記発光素子４か
らレンズ部１ａに向い、該レンズ部１ａで内部反
射して側面に向う光束a′を前面側に略平行光線と
して反射させるドーム状の第２の曲面９とに形成
し、これら第１の曲面８と第２の曲面９との間に
逆Ｖ字状の溝１０が設けてある。尚、前記LED
本体１は反射部材６の背面側から貫通孔７に挿着
される。
Next, the present invention will be explained with reference to illustrated embodiments.
Incidentally, since the LED main body 1 itself has the same shape as the conventional example, the same reference numerals are given and the explanation thereof will be omitted. In FIG. 1, a reflecting member 6 into which the LED main body 1 is fitted is formed of a light-transmitting resin or rubber so that its overall shape is approximately bowl-shaped. A through hole 7 into which the LED main body 1 is fitted is formed approximately in the center of the reflecting member 6, and the back side allows the luminous flux b emitted from the light emitting element 4 of the LED main body 1 to the side to be approximately parallel to the front side. A dome-shaped first curved surface 8 that reflects the light as a light beam, and a light beam a' directed from the light emitting element 4 toward the lens portion 1a, internally reflected by the lens portion 1a, and directed toward the side surface, is reflected toward the front side as a substantially parallel light beam. A dome-shaped second curved surface 9 is formed, and an inverted V-shaped groove 10 is provided between the first curved surface 8 and the second curved surface 9. Furthermore, the above LED
The main body 1 is inserted into the through hole 7 from the back side of the reflective member 6.
このような構成にすることで、LED本体１の
発光素子４から側面方向に放射される光束ｂが第
１の曲面８によつて前面側に反射され、又LED
本体１のレンズ部１ａで内部反射された光束a′も
第２の曲面９で前面側に反射されるので、従来例
では使用されなかつたＡの範囲とＢの範囲とが
夫々前面に効果的に反射されるのである。 With this configuration, the luminous flux b emitted from the light emitting element 4 of the LED main body 1 in the side direction is reflected to the front side by the first curved surface 8, and the LED
Since the luminous flux a' internally reflected by the lens portion 1a of the main body 1 is also reflected to the front side by the second curved surface 9, the ranges A and B, which were not used in the conventional example, are effectively applied to the front surface. It is reflected.
以上説明したように本発明に係る発光ダイオー
ドは、光透過性の反射部材にLED本体を一体的
に嵌着し、該反射部材の背面側をドーム状の第１
の曲面と第２の曲面とに形成したことにより、
LED本体から側面方向に放射されるほとんど全
ての光束を前面側に反射させ、光束の有効利用度
が大巾に増大し、光源として明るい発光ダイオー
ドになるという優れた効果を奏する。
As explained above, in the light emitting diode according to the present invention, the LED main body is integrally fitted into a light-transmitting reflective member, and the back side of the reflective member is connected to a dome-shaped first
By forming the curved surface and the second curved surface,
Almost all of the luminous flux emitted from the LED body in the side direction is reflected toward the front side, greatly increasing the effective utilization of the luminous flux and producing the excellent effect of making the light emitting diode bright as a light source.
第１図は本発明に係る発光ダイオードの断面
図、第２図は従来例におけるLED本体の側面図
である。
１……LED本体、２，３……リードフレーム、
４……発光素子、５……ワイヤー、６……反射部
材、７……貫通孔、８……第１の曲面、９……第
２の曲面、１０……逆Ｖ字状の溝。
FIG. 1 is a sectional view of a light emitting diode according to the present invention, and FIG. 2 is a side view of a conventional LED main body. 1...LED body, 2, 3...Lead frame,
4... Light emitting element, 5... Wire, 6... Reflective member, 7... Through hole, 8... First curved surface, 9... Second curved surface, 10... Inverted V-shaped groove.
１ 中央開口があるフランジ部を有するワンピー
スの可撓性円筒ボデーと、上記フランジ部から上
記円筒ボデーの軸方向に一体に延びる一対の離れ
た弾性の短脚部材と、上記フランジ部から上記円
筒ボデーの軸方向に一体に延びる一対の弾性の保
持脚部材とを有し、上記短脚部材はパネルの開口
に対する締付け装置を備えたパネルの開口内に発
光ダイオードを設置するための発光ダイオード保
持器において、
上記対の保持脚部材は夫々先端部に前記円筒ボ
デーの内側に向かつて突出した保持肩部を有し、
上記保持肩部の各々は前記円筒ボデーの軸心から
延びるラジアル線に関し３〜8°の角度で前記フラ
ンジ部分に向けて配置してあることを特徴とする
発光ダイオード保持器。
２ 特許請求の範囲１項の保持器において、前記
角度は円筒形ボデーの軸心から延びるラジアル線
に対し５度である発光ダイオード保持器。
３ 特許請求の範囲(1)の保持器において、前記短
脚部材と保持脚部材の各々上には軸方向に延びる
圧搾リブが形成されていることを特徴とする発光
ダイオード保持器。
1 a one-piece flexible cylindrical body having a flange portion with a central opening; a pair of spaced apart elastic short legs extending integrally from the flange portion in the axial direction of the cylindrical body; a pair of elastic holding leg members extending integrally in the axial direction of the light emitting diode holder for installing the light emitting diode in the opening of the panel, the short leg member being provided with a tightening device for the opening of the panel. , each of the pair of holding leg members has a holding shoulder protruding toward the inside of the cylindrical body at a distal end thereof;
A light emitting diode holder, wherein each of the holding shoulders is arranged toward the flange portion at an angle of 3 to 8 degrees with respect to a radial line extending from the axis of the cylindrical body. 2. The light emitting diode holder according to claim 1, wherein the angle is 5 degrees with respect to a radial line extending from the axis of the cylindrical body. 3. The light emitting diode holder according to claim (1), characterized in that compression ribs extending in the axial direction are formed on each of the short leg members and the holding leg members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60038286A JPS61198692A (en) | 1985-02-27 | 1985-02-27 | Light emitting diode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60038286A JPS61198692A (en) | 1985-02-27 | 1985-02-27 | Light emitting diode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61198692A JPS61198692A (en) | 1986-09-03 |
| JPH0436592B2 true JPH0436592B2 (en) | 1992-06-16 |
Family
ID=12521062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60038286A Granted JPS61198692A (en) | 1985-02-27 | 1985-02-27 | Light emitting diode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61198692A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4246821B2 (en) * | 1998-09-18 | 2009-04-02 | アンリツ株式会社 | Diffusion plate and backlight for liquid crystal display using the same |
| US6547423B2 (en) * | 2000-12-22 | 2003-04-15 | Koninklijke Phillips Electronics N.V. | LED collimation optics with improved performance and reduced size |
| KR100619017B1 (en) | 2004-05-11 | 2006-08-31 | 삼성전자주식회사 | Illuminating unit and projection type image display apparatus employing the same |
| JP4557037B2 (en) * | 2008-04-08 | 2010-10-06 | ウシオ電機株式会社 | LED light emitting device |
| DE102020208091A1 (en) * | 2020-06-30 | 2021-12-30 | Robert Bosch Gesellschaft mit beschränkter Haftung | Lighting unit for illuminating a vehicle interior of a vehicle |
-
1985
- 1985-02-27 JP JP60038286A patent/JPS61198692A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61198692A (en) | 1986-09-03 |
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