JPS6384965U - - Google Patents
Info
- Publication number
- JPS6384965U JPS6384965U JP18061086U JP18061086U JPS6384965U JP S6384965 U JPS6384965 U JP S6384965U JP 18061086 U JP18061086 U JP 18061086U JP 18061086 U JP18061086 U JP 18061086U JP S6384965 U JPS6384965 U JP S6384965U
- Authority
- JP
- Japan
- Prior art keywords
- light receiver
- light
- incident
- cylindrical lens
- receiver
- 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
- 238000010586 diagram Methods 0.000 description 3
Description
第１図はこの考案の一実施例による受光器の斜
視図、第２図はこの考案の受光器を用いたフオー
カス用デイテクタの構成図、第３図は従来の受光
器と円筒レンズの配置図、第４図ａ〜ｃは従来の
フオーカス用デイテクタの各々の動作を示す構成
図である。
２……円筒レンズ、３……受光器、４……レー
ザダイオード、６……回析格子、７……偏光プリ
ズム、８……コリメーシヨンレンズ、９……１／
４波長板、１０……アクチユエータ、１１……デ
イスク。なお、図中同一符号は同一又は相当部分
を示す。
Fig. 1 is a perspective view of a light receiver according to an embodiment of this invention, Fig. 2 is a configuration diagram of a focus detector using the light receiver of this invention, and Fig. 3 is a layout diagram of a conventional light receiver and a cylindrical lens. , and FIGS. 4a to 4c are configuration diagrams showing the operation of each of the conventional focus detectors. 2... Cylindrical lens, 3... Light receiver, 4... Laser diode, 6... Diffraction grating, 7... Polarizing prism, 8... Collimation lens, 9... 1/
4-wavelength plate, 10... actuator, 11... disk. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (1)
、受光器への入射光を集光する円筒レンズを受光
器と一体化したことを特徴とする受光器。 A light receiver that outputs a current according to the amount of incident light, characterized in that a cylindrical lens for condensing light incident on the light receiver is integrated with the light receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18061086U JPS6384965U (en) | 1986-11-24 | 1986-11-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18061086U JPS6384965U (en) | 1986-11-24 | 1986-11-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6384965U true JPS6384965U (en) | 1988-06-03 |
Family
ID=31124722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18061086U Pending JPS6384965U (en) | 1986-11-24 | 1986-11-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6384965U (en) |
-
1986
- 1986-11-24 JP JP18061086U patent/JPS6384965U/ja active Pending