JPH0294483A - Led collimator for optical module - Google Patents
Led collimator for optical moduleInfo
- Publication number
- JPH0294483A JPH0294483A JP63244050A JP24405088A JPH0294483A JP H0294483 A JPH0294483 A JP H0294483A JP 63244050 A JP63244050 A JP 63244050A JP 24405088 A JP24405088 A JP 24405088A JP H0294483 A JPH0294483 A JP H0294483A
- Authority
- JP
- Japan
- Prior art keywords
- led
- lens holder
- lens
- collimator
- led element
- 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
- 230000003287 optical effect Effects 0.000 title claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 8
- 239000011521 glass Substances 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000003466 welding Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 2
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Landscapes
- Led Device Packages (AREA)
- Led Devices (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、光モジュール用ＬＥＤコリメータに関するも
のである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an LED collimator for an optical module.
従来光モジユール用コリメータに関しては、「無調整組
立形合分波器内蔵波長多重送受信モジュール」 （青木
他、Ｃ３８５−７４，１９８５，８，２３、電子通信学
会技術研究報告）なる文献に述べられており、最適な光
結合を得るには、各部品に高精度の公差配分が必要であ
ると記載されているが、ＬＥＤコリメータ光ビーム出力
の向上対策についてはふれていない。Regarding the collimator for conventional optical modules, it is described in the document ``Wavelength division multiplexing transceiver module with built-in non-adjustable assembly type multiplexer/demultiplexer'' (Aoki et al., C385-74, 1985, 8, 23, Technical research report of Institute of Electronics and Communication Engineers). Although it is stated that in order to obtain optimal optical coupling, highly accurate tolerance allocation is required for each component, there is no mention of measures to improve the light beam output of the LED collimator.
本発明は従来問題となっていたＬＥＤ］リメータの光ビ
ーム出力の増大を図ることを目的とする。An object of the present invention is to increase the light beam output of an LED remeter, which has been a problem in the past.
上記目的は、レンズホルダの内部を半球鎖面状又はレン
ズホルダ内部に半球鏡を設けることにＪ：り達成される
。The above object can be achieved by providing the inside of the lens holder in a hemispherical chain surface shape or by providing a hemispherical mirror inside the lens holder.
（作用〕
本発明によるレンズホルダ内部の半球鏡面は、ＬＥＤ素
子から出射した光を反則し、再びＬＥＤ素子に戻す。か
くしてＬＥＤ素子の輝度は見かけ上向上し、レンズ光ビ
ーム出力は著しく増大する。(Function) The hemispherical mirror surface inside the lens holder according to the present invention reflects the light emitted from the LED element and returns it to the LED element.Thus, the brightness of the LED element is apparently improved and the lens light beam output is significantly increased.
以下本発明の実施例を第１図、第２図により説明する。 Embodiments of the present invention will be described below with reference to FIGS. 1 and 2.
第１図は、本発明による光モジュール用ＬＥＤコリメー
タの断面図で、金属よりなるレンズホルダコは８に−７
等よりなるレンズ２が装着されており、ＬＥＤ （発光
ダイオード）素子３を搭載した金属、ガラスよりなるス
テム４に封止部５でレーザ溶接等で気密封止される。レ
ンズホルダコの内部のしＥＤ素子近傍部１ａを半球面と
し、かつ金属あるいは誘電体よりなる反射膜１ｂを蒸着
等で形成せしめる。FIG. 1 is a sectional view of an LED collimator for an optical module according to the present invention, and the lens holder made of metal is 8-7.
A lens 2 made of metal or glass is attached, and a stem 4 made of metal or glass on which an LED (light emitting diode) element 3 is mounted is hermetically sealed at a sealing part 5 by laser welding or the like. A portion 1a near the ED element inside the lens holder is made into a hemispherical surface, and a reflective film 1b made of metal or dielectric is formed by vapor deposition or the like.
第２図は、本発明による他の実施例で、ＬＥＤ素子近傍
に、半球状の１１６を設け、該鏡６の内側を第１図と同
様に金属又は誘電体よりなる反射膜６ｂが形成されてい
る。勿論半球状鏡６の中央部はＬＥＤ素子３の光が通過
できる必要な穴が設けらている。FIG. 2 shows another embodiment of the present invention, in which a hemispherical mirror 116 is provided near the LED element, and a reflective film 6b made of metal or dielectric is formed on the inside of the mirror 6 as in FIG. ing. Of course, the center of the hemispherical mirror 6 is provided with a necessary hole through which the light from the LED element 3 can pass.
かくしてＬＥＤ素子３から出射した光は、半球鏡面１ｂ
又は６ｂにより反射し、ＬＥＤ素子３に再び戻ることに
なり、児かけのＬＥＤ索子３の輝度が上がる。The light emitted from the LED element 3 thus reaches the hemispherical mirror surface 1b.
Otherwise, it is reflected by 6b and returns to the LED element 3 again, increasing the brightness of the LED cord 3 attached to the child.
第３図は従来のＬＥＤコリメータの断面図で、ＬＥＤ素
子３から出射した光のうちレンズホルダ１に照射した光
のうちレンズホルダコに照射された光はほとんどすべて
吸収されてしまい、レンズ２から出射する光ビーム出力
は全光の０．１％以下であった。FIG. 3 is a cross-sectional view of a conventional LED collimator. Of the light emitted from the LED element 3, almost all of the light irradiated to the lens holder 1 is absorbed, and the light irradiated to the lens holder 1 is absorbed. The emitted light beam output was less than 0.1% of the total light.
かくして本発明による半球鏡面により、従来出射してい
なかった光もレンズを通過することになりＬＥＤコリメ
ータの光ビームが著しく増大する。Thus, the hemispherical mirror surface according to the present invention allows light that was not emitted in the past to pass through the lens, significantly increasing the light beam of the LED collimator.
なお本発明の半球鏡の１ａ、６は放物面鏡とすることも
可能である。Note that the hemispherical mirrors 1a and 6 of the present invention can also be parabolic mirrors.
本発明によればＬＥＤコリメータの高出力化が可能とな
る。同じく歩留りが飛躍的に向上する。According to the present invention, it is possible to increase the output of the LED collimator. Similarly, the yield improves dramatically.
従って大巾な性能向上、原価低減が期待できる。Therefore, significant performance improvements and cost reductions can be expected.
第１図は本発明の一実施例の光モジュール用ＬＥＤコリ
メータの断面図、第２図は本発明による他の実施例の断
面図、第３図は従来のＬＥＤコリメータの断面図である
。
１・・・レンズホルダ、１ａ・・・半球鏡、１ｂ・・・
反削荀、２・・・レンズ、３・・・ＬＥＤ素子、６・・
・半球鏡、６ｂ・・・反射膜。
第１図FIG. 1 is a cross-sectional view of an LED collimator for an optical module according to one embodiment of the present invention, FIG. 2 is a cross-sectional view of another embodiment of the present invention, and FIG. 3 is a cross-sectional view of a conventional LED collimator. 1... Lens holder, 1a... Hemisphere mirror, 1b...
Anti-shaving, 2... Lens, 3... LED element, 6...
- Hemisphere mirror, 6b...reflection film. Figure 1
Claims (1)
を得ることを目的とするＬＥＤコリメータにおいて、レ
ンズホルダ内部の光ビーム光路以外のＬＥＤ素子近傍部
を、半球面とし金属又は誘電体膜により鏡面状とし、Ｌ
ＥＤ素子の出射光を半球鏡面によりＬＥＤ素子に戻し見
かけ上の輝度を上げ、レンズ光ビーム出力の増大を図る
ことを特徴とする光モジュール用ＬＥＤコリメータ。1. In an LED collimator that aims to optimally combine an LED element and a lens to obtain a parallel light beam, the area near the LED element other than the optical beam path inside the lens holder is made into a hemispherical surface and mirror-finished with a metal or dielectric film. L
An LED collimator for an optical module, characterized in that the light emitted from the ED element is returned to the LED element using a hemispherical mirror surface to increase the apparent brightness and increase the output of the lens light beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63244050A JPH0294483A (en) | 1988-09-30 | 1988-09-30 | Led collimator for optical module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63244050A JPH0294483A (en) | 1988-09-30 | 1988-09-30 | Led collimator for optical module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0294483A true JPH0294483A (en) | 1990-04-05 |
Family
ID=17112980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63244050A Pending JPH0294483A (en) | 1988-09-30 | 1988-09-30 | Led collimator for optical module |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0294483A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004354880A (en) * | 2003-05-30 | 2004-12-16 | Seiko Epson Corp | Lighting system and projection display device |
| JP2007080527A (en) * | 2005-09-09 | 2007-03-29 | Matsushita Electric Works Ltd | Light emitting device and lighting apparatus |
-
1988
- 1988-09-30 JP JP63244050A patent/JPH0294483A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004354880A (en) * | 2003-05-30 | 2004-12-16 | Seiko Epson Corp | Lighting system and projection display device |
| JP4599809B2 (en) * | 2003-05-30 | 2010-12-15 | セイコーエプソン株式会社 | Illumination device and projection display device |
| JP2007080527A (en) * | 2005-09-09 | 2007-03-29 | Matsushita Electric Works Ltd | Light emitting device and lighting apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20220149586A1 (en) | Laser device and light guide member used with the same | |
| US7165896B2 (en) | Light transmitting modules with optical power monitoring | |
| US4934784A (en) | Hybrid active devices coupled to fiber via spherical reflectors | |
| JPH10321900A (en) | Optical module | |
| CN110094692B (en) | Lighting device of integrated LiDAR system and car | |
| KR102631223B1 (en) | optical conversion module | |
| JP5982556B2 (en) | Optically pumped solid-state laser device with self-aligned pump optics | |
| CN112103764A (en) | Multi-chip laser packaging assembly | |
| US20180034236A1 (en) | Beam source having a laser diode | |
| JP2015515150A5 (en) | ||
| JP2002134794A (en) | Optical device for optical element | |
| JPH0294483A (en) | Led collimator for optical module | |
| US6676472B1 (en) | Lamp envelope with integrated optics | |
| JPH01241184A (en) | Reflection type photosensor | |
| JPH03288479A (en) | Light emitting element | |
| JPH0251287A (en) | Multicolor led | |
| JPH0669547A (en) | Light emitting device and optical fiber-type photoelectric sensor | |
| CN217823681U (en) | Laser light source device and light source system | |
| CN213341081U (en) | Semiconductor laser | |
| US10992101B2 (en) | Package structure for edge-emitting laser | |
| US20230358978A1 (en) | Optical waveguide package, light emitter, and projection system | |
| JPH063593A (en) | Optical reflecting element | |
| JP2565526Y2 (en) | Laser diode module | |
| EP0893818B1 (en) | Lamp envelope with integrated optics | |
| JPH0521899A (en) | Semiconductor laser device |