JPH0466112B2 - - Google Patents
Info
- Publication number
- JPH0466112B2 JPH0466112B2 JP60038285A JP3828585A JPH0466112B2 JP H0466112 B2 JPH0466112 B2 JP H0466112B2 JP 60038285 A JP60038285 A JP 60038285A JP 3828585 A JP3828585 A JP 3828585A JP H0466112 B2 JPH0466112 B2 JP H0466112B2
- Authority
- JP
- Japan
- Prior art keywords
- main body
- led
- reflective member
- led main
- hole
- 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 8
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
-
- 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、車輛用灯具、各種表示灯、光
通信装置及び各種センサ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、内部に発光素子を備えたLED本体が
単体で使用され、該LED本体の前面側から放射
される光束のみが有効な光束として使用されるの
で、側面側に放射される光束は全く無駄なものと
なつている。従つて、LED本体から放射される
光束は一部しか使用されないために全体的に暗い
光源となつている。
Generally, a light emitting diode used as this type of light source uses a single LED body with a light emitting element inside, and only the light beam emitted from the front side of the LED body is used as an effective light beam. The light beam radiated to the side is completely wasted. Therefore, only a portion of the luminous flux emitted from the LED body is used, resulting in an overall dark light source.
LED本体から放射される光束を有効に利用す
る発明として同一出願人に係る先願の発明（特願
昭59−270372）がある。この先願の発明にあつて
は、全体的な照度アツプを図る点で優れている
が、その構成において、LED本体とキヤツプ
（反射部材）とが遊嵌又は同質材料で接着されて
いる。LED本体とキヤツプとが遊嵌状態にある
と車輛用灯具のように、外部から振動が付与され
るような光源としては不適当であり、又接着させ
る場合には手数がかかるばかりでなく、LED本
体とキヤツプとが一体的に固定されるので、キヤ
ツプが硬質材料で形成されていると、熱によりキ
ヤツプが膨張して内部応力が発生し、該内部応力
がLED本体にまで作用して、LED本体の発光素
子が剥離したり或いはワイヤーが断線したりす
る。 An invention that effectively utilizes the luminous flux emitted from the LED body is an invention previously filed by the same applicant (Japanese Patent Application No. 59-270372). The invention of this prior application is superior in that it increases the overall illuminance, but in its configuration, the LED main body and the cap (reflective member) are loosely fitted or bonded using the same material. If the LED body and cap are loosely fitted, it is unsuitable for use as a light source that is subject to vibrations from the outside, such as a vehicle lamp, and it is not only time consuming to bond the LED, but also Since the main body and the cap are integrally fixed, if the cap is made of a hard material, the cap will expand due to heat and internal stress will be generated, and this internal stress will act on the LED main body, causing the LED to The light emitting element on the main body may peel off or the wire may break.
本発明は、従来例におけるLED本体から放射
される光束の利用度の悪い問題点、熱による内部
応力でLED本体が受ける問題点、及び安定性の
問題点を解決しようとするものである。
The present invention aims to solve the problems of the conventional examples of poor utilization of the luminous flux emitted from the LED body, problems of the LED body being subjected to internal stress due to heat, and problems of stability.
本発明は前記した各問題点を解決するための具
体的手段として、LED本体と該LED本体に嵌着
した光透過性の反射部材とからなり、前記反射部
材は中央部に前記LED本体が嵌る貫通孔が形成
され、背面側は前記LED本体の側面から放射さ
れる光束を前面側に略平行光線として反射させる
ドーム状の曲面に形成され、該曲面に連続して前
記貫通孔を取囲むように円筒部が突出形成され、
該円筒部の端縁内側に複数個のフツク部が形成さ
れると共に、円筒部に長さ方向に沿つて所定長さ
のスリツトが形成され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、LED本体に
反射部材を取付けることによつて光束の利用度が
倍増し、円筒部にフツク部を設けることでLED
本体と反射部材とが安定した状態になり、且つス
リツトを設けることで熱膨張による内部応力を吸
収できるのである。
As a specific means for solving the above-mentioned problems, the present invention comprises an LED main body and a light-transmissive reflective member fitted into the LED main body, and the reflective member has a center portion into which the LED main body is fitted. A through hole is formed, and the back side is formed into a dome-shaped curved surface that reflects the luminous flux emitted from the side surface of the LED body toward the front side as approximately parallel light beams, and the dome-shaped curved surface is formed so as to be continuous with the curved surface and surround the through hole. A cylindrical part is formed protrudingly on the
The present invention provides a light emitting diode characterized in that a plurality of hook parts are formed inside the edge of the cylindrical part, and a slit of a predetermined length is formed in the cylindrical part along the length direction. By attaching a reflective member to the LED body, the utilization of the luminous flux is doubled, and by providing a hook part on the cylindrical part, the LED
The main body and the reflective member are in a stable state, and by providing the slit, internal stress due to thermal expansion can be absorbed.
次に本発明を図示の実施例により更に詳しく説
明すると、１はLED本体であり、該LED本体は
２本のリードフレーム２，３を有し、該リードフ
レームの内の一方にリードフレーム２に発光素子
４がマウントされ他方のリードフレーム３との間
でワイヤー５がボンデイングされている。尚１ａ
はフランジ部である。このような構成のLED本
体１は光源として一般的に使用されているもので
ある。
Next, the present invention will be explained in more detail with reference to the illustrated embodiment. 1 is an LED main body, and the LED main body has two lead frames 2 and 3, and the lead frame 2 is attached to one of the lead frames. A light emitting element 4 is mounted and a wire 5 is bonded to the other lead frame 3. Note 1a
is the flange part. The LED main body 1 having such a configuration is generally used as a light source.
このLED本体１に対して反射部材６が一体的
に取付けられる。この反射部材６は光透過性の樹
脂又はゴムで形成され、全体形状が椀形を呈し、
前面側（図において上部）が平坦で背面側がドー
ム状の曲面７に形成されている。反射部材６の略
中央部に前記前面側から背面側に貫通する貫通孔
８が形成され、背面側において貫通孔の周辺に前
記曲面７からつながつて円筒部９が一体に突出形
成され、該円筒部の端縁の内側に複数個のフツク
部１０が形成される。このフツク部１０は円筒部
の対称位置に２個設ければ足りる。更に前記円筒
部９に長さ方向に沿つて少なくとも１条のスリツ
ト１１が形成され、好ましくは前記フツク部１０
とクロスする状態で２条のスリツトを設けた方が
良い。尚、LED本体１にフランジ部１ａが設け
られたものにおいては、前記円筒部９の内周面
に、前記フランジ部１ａが当接する段部１２が形
成される。 A reflecting member 6 is integrally attached to this LED main body 1. The reflecting member 6 is made of a light-transmitting resin or rubber, and has a bowl-shaped overall shape.
The front side (the upper part in the figure) is flat and the back side is formed into a dome-shaped curved surface 7. A through hole 8 penetrating from the front side to the back side is formed in the approximate center of the reflecting member 6, and a cylindrical portion 9 is integrally formed protruding from the curved surface 7 around the through hole on the back side. A plurality of hook portions 10 are formed inside the edge of the portion. It is sufficient to provide two hook portions 10 at symmetrical positions on the cylindrical portion. Furthermore, at least one slit 11 is formed along the length of the cylindrical portion 9, and preferably the hook portion 10 is formed with at least one slit 11.
It is better to provide two slits in a state where they cross. In the case where the LED main body 1 is provided with a flange portion 1a, a stepped portion 12 is formed on the inner circumferential surface of the cylindrical portion 9, with which the flange portion 1a comes into contact.
このように形成された反射部材６に対して、
LED本体１を取付ける場合には、円筒部９の背
面側から貫通孔８内にLED本体１を挿着させる
と、材料の弾性及び円筒部９にスリツト１１があ
るために円筒部自体が外側に開き、比較的スムー
ズな挿着なされる。貫通孔８に対してLED本体
１が適切な位置まで挿着されると、フランジ部１
ａが段部１２に当接し、同時にフツク部１０が
LED本体１の背面側に係合して抜け出さなくな
り円筒部９がLED本体１の外周面に適度の強さ
で圧接する。従つて、LED本体１と反射部材６
とは位置ずれすることなく安定した状態で一体化
されるのである。 For the reflecting member 6 formed in this way,
When installing the LED main body 1, when inserting the LED main body 1 into the through hole 8 from the back side of the cylindrical part 9, the cylindrical part itself will move outward due to the elasticity of the material and the slit 11 in the cylindrical part 9. It opens and inserts relatively smoothly. When the LED main body 1 is inserted into the through hole 8 to the appropriate position, the flange part 1
a comes into contact with the stepped portion 12, and at the same time the hook portion 10
The cylindrical part 9 engages with the back side of the LED body 1 and does not come out, and the cylindrical part 9 is pressed against the outer peripheral surface of the LED body 1 with appropriate strength. Therefore, the LED main body 1 and the reflective member 6
They are integrated in a stable state without any displacement.
このように構成された本発明の発光ダイオード
は、LED本体１から前面に放射される光束ａは
貫通孔８を介して直接放射され、LED本体１の
側面に放射される光束ｂは反射部材６のドーム状
の曲面７によつて反射され、前面側に略平行光線
として放射される。従つて、従来無駄になつてい
た側面への光束が有効に利用できるのである。 In the light emitting diode of the present invention configured as described above, the luminous flux a emitted from the LED main body 1 to the front surface is directly emitted through the through hole 8, and the luminous flux b emitted to the side surface of the LED main body 1 is emitted from the reflecting member 6. The light is reflected by the dome-shaped curved surface 7 and radiated to the front side as a substantially parallel light beam. Therefore, the luminous flux to the side, which was wasted in the past, can be effectively used.
又、反射部材６が熱によつて膨張しても、円筒
部９にスリツト１１が設けてあるので該スリツト
により熱膨張による応力が吸収され、LED本体
１を必要以上に圧迫することがないので内部応力
が生ぜず、発光素子又はワイヤー等が破損しない
のである。 Furthermore, even if the reflective member 6 expands due to heat, the slit 11 provided in the cylindrical portion 9 absorbs the stress caused by the thermal expansion, and the LED body 1 is not pressed unnecessarily. No internal stress is generated, and the light emitting elements or wires are not damaged.
以上説明したように本発明に係る発光ダイオー
ドは、LED本体に嵌着させて反射部材を設け、
該反射部材の背面をドーム状の曲面に形成したこ
とにより、前記LED本体の側面に放射される光
束を前記曲面により前面側に略平行光線として取
り出せるので、従来無駄になつていた光束を有効
に利用し、全体の照度アツプを図れるという優れ
た効果を奏する。
As explained above, the light emitting diode according to the present invention includes a reflective member fitted into the LED main body,
By forming the back surface of the reflecting member into a dome-shaped curved surface, the light beam radiated to the side surface of the LED body can be taken out as a substantially parallel light beam to the front side by the curved surface, so that the light beam that was wasted in the past can be effectively used. It has the excellent effect of increasing the overall illuminance.
又、貫通孔に沿つて円筒部を設け、該円筒部に
フツク部とスリツトとを設けることにより、
LED本体を貫通孔に挿着する際に無駄なくスム
ーズに挿着でき作業性が良好となるばかりでな
く、フツク部の係合によつて相互に位置ずれが生
じないで安定した状態で一体化が保てるという優
れた効果も奏する。 Further, by providing a cylindrical portion along the through hole and providing a hook portion and a slit in the cylindrical portion,
When inserting the LED body into the through hole, it can be inserted smoothly without wasting any waste, which not only improves work efficiency, but also allows for stable integration without mutual positional deviation due to the engagement of the hook parts. It also has the excellent effect of maintaining
更に、円筒部にスリツトが設けられているの
で、熱膨張があつても、スリツト部分で吸収され
LED本体を圧迫することがなく、熱膨張による
内部応力でLED本体の各構成部分が破損しない
という優れた効果も奏する。 Furthermore, since there is a slit in the cylindrical part, even if there is thermal expansion, it will be absorbed by the slit part.
It also has the excellent effect of not putting pressure on the LED body, and preventing damage to the component parts of the LED body due to internal stress caused by thermal expansion.
第１図は本発明に係る発光ダイオードの断面
図、第２図は第１図ので示した部分の拡大断面
図、第３図は同発光ダイオードの正面図、第４図
は同発光ダイオードの背面側斜視図である。
１……LED本体、１ａ……フランジ部、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……ドーム状の曲
面、８……貫通孔、９……円筒部、１０……フツ
ク部、１１……スリツト、１２……段部。
Fig. 1 is a sectional view of a light emitting diode according to the present invention, Fig. 2 is an enlarged sectional view of the portion shown in Fig. 1, Fig. 3 is a front view of the same light emitting diode, and Fig. 4 is a rear view of the same light emitting diode. FIG. 1...LED body, 1a...flange part, 2,
3...Lead frame, 4...Light emitting element, 5...
Wire, 6... Reflective member, 7... Dome-shaped curved surface, 8... Through hole, 9... Cylindrical part, 10... Hook part, 11... Slit, 12... Step part.
Claims (1)
の反射部材とからなり、前記反射部材は中央部に
前記LED本体が嵌る貫通孔が形成され、背面側
は前記LED本体の側面から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曲
面に形成され、該曲面に連続して前記貫通孔を取
囲むように円筒部が突出形成され、該円筒部の端
縁内側に複数個のフツク部が形成されると共に、
円筒部に長さ方向に沿つて所定長さのスリツトが
形成されたことを特徴とする発光ダイオード。1 Consists of an LED main body and a light-transmissive reflective member fitted to the LED main body, the reflective member has a through hole in the center into which the LED main body fits, and the back side of the reflective member has a through hole through which the LED main body is fitted, and the back side of the reflective member has a light-transmitting reflective member fitted to the LED main body. The cylindrical portion is formed into a dome-shaped curved surface that reflects the light beam toward the front side as substantially parallel rays, and a cylindrical portion is formed continuously on the curved surface to protrude so as to surround the through hole. At the same time, a hook portion is formed.
A light emitting diode characterized in that a slit of a predetermined length is formed in a cylindrical portion along the length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60038285A JPS61198691A (en) | 1985-02-27 | 1985-02-27 | Light emitting diode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60038285A JPS61198691A (en) | 1985-02-27 | 1985-02-27 | Light emitting diode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61198691A JPS61198691A (en) | 1986-09-03 |
| JPH0466112B2 true JPH0466112B2 (en) | 1992-10-22 |
Family
ID=12521033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60038285A Granted JPS61198691A (en) | 1985-02-27 | 1985-02-27 | Light emitting diode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61198691A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE42567E1 (en) | 1995-11-16 | 2011-07-26 | Lifescan, Inc. | Electrochemical cell |
| US9274078B2 (en) | 2006-03-31 | 2016-03-01 | Lifescan, Inc. | Systems and methods of discriminating control solution from a physiological sample |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0249008U (en) * | 1988-09-30 | 1990-04-05 | ||
| 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 |
| EP2717474A1 (en) | 2012-10-02 | 2014-04-09 | Thomson Licensing | Multiple function arrangement for electronic apparatus and method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59177952U (en) * | 1983-05-14 | 1984-11-28 | 株式会社富士通ゼネラル | LED holder |
-
1985
- 1985-02-27 JP JP60038285A patent/JPS61198691A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE42567E1 (en) | 1995-11-16 | 2011-07-26 | Lifescan, Inc. | Electrochemical cell |
| US9274078B2 (en) | 2006-03-31 | 2016-03-01 | Lifescan, Inc. | Systems and methods of discriminating control solution from a physiological sample |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61198691A (en) | 1986-09-03 |
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