JPS6223465U - - Google Patents
Info
- Publication number
- JPS6223465U JPS6223465U JP11497985U JP11497985U JPS6223465U JP S6223465 U JPS6223465 U JP S6223465U JP 11497985 U JP11497985 U JP 11497985U JP 11497985 U JP11497985 U JP 11497985U JP S6223465 U JPS6223465 U JP S6223465U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- output light
- optical axis
- photodetecting device
- light receiving
- 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 claims 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 1
Description
第１図は本考案の原理を示す図、第２図は実施
例を示す図、第３図は実際の寸法例を示す図、第
４図は従来の技術を示す図。
図に於いて、１はレーザダイオード、２，２′
はレンズ２ａはレーザ光通過穴、２ｂは低反射膜
、３はフオトダイオード。
FIG. 1 is a diagram showing the principle of the present invention, FIG. 2 is a diagram showing an embodiment, FIG. 3 is a diagram showing an example of actual dimensions, and FIG. 4 is a diagram showing a conventional technique. In the figure, 1 is a laser diode, 2, 2'
Lens 2a is a laser beam passage hole, 2b is a low reflection film, and 3 is a photodiode.
Claims (1)
２により集束して光軸に対し受光面３ａを傾斜さ
せて配置した受光素子３に入射し、出力光１ｂの
検出を行なう光検出装置に於いて、該出力光１ｂ
の中心光軸が該レンズ２と交叉する部分に貫通し
た孔２ａを設けたことを特徴とする光検出装置。 In a photodetecting device, a rear output light 1a of a laser diode 1 is focused by a lens 2, and enters a light receiving element 3 arranged with a light receiving surface 3a inclined with respect to the optical axis, and detects an output light 1b. Output light 1b
A photodetecting device characterized in that a penetrating hole 2a is provided at a portion where the central optical axis of the lens 2 intersects with the lens 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11497985U JPS6223465U (en) | 1985-07-26 | 1985-07-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11497985U JPS6223465U (en) | 1985-07-26 | 1985-07-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6223465U true JPS6223465U (en) | 1987-02-13 |
Family
ID=30998208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11497985U Pending JPS6223465U (en) | 1985-07-26 | 1985-07-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6223465U (en) |
-
1985
- 1985-07-26 JP JP11497985U patent/JPS6223465U/ja active Pending