JPS64814U - - Google Patents
Info
- Publication number
- JPS64814U JPS64814U JP9195787U JP9195787U JPS64814U JP S64814 U JPS64814 U JP S64814U JP 9195787 U JP9195787 U JP 9195787U JP 9195787 U JP9195787 U JP 9195787U JP S64814 U JPS64814 U JP S64814U
- Authority
- JP
- Japan
- Prior art keywords
- photodetector
- light
- disk
- casing
- objective lens
- 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 description 5
- 239000000284 extract Substances 0.000 claims 1
Landscapes
- Optical Head (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Description
第１図はこの考案の一実施例の要部側断面図、
第２図は第１図の光検知器を締付け、固定した状
態を示す側断面図、第３図は従来の光ヘツドの光
検知器固定装置の要部断面側面図である。
１……デイスク、２……光源部、３……筐体、
３ａ……フランジ面、４……光検知器、５……光
検知器支持板、２１……押え板、２２……固定用
ねじ、２１ａ，２２ａ……嵌合部。なお、各図中
、同一符号は同一又は相当部分を示す。
FIG. 1 is a side sectional view of the main part of an embodiment of this invention.
FIG. 2 is a sectional side view showing the photodetector shown in FIG. 1 in a tightened and fixed state, and FIG. 3 is a sectional side view of essential parts of a conventional photodetector fixing device for an optical head. 1... Disk, 2... Light source section, 3... Housing,
3a...flange surface, 4...photodetector, 5...photodetector support plate, 21...pressing plate, 22...fixing screw, 21a, 22a...fitting portion. In each figure, the same reference numerals indicate the same or equivalent parts.
Claims (1)
系でデイスク上に集光させるとともに前記デイス
クからの反射光を受光する光学系を収納した筐体
と、この筐体のフランジ面に少なくとも１本の境
界線に分割した複数の受光領域を有する光検知器
と一体化され押え板とともに固定用ねじを用いて
締付け固定された光検知器支持板とを備え、前記
光学系を介して受光された反射光を前記受光領域
に導くことにより前記対物レンズのフオーカシン
グ制御およびトラツキング制御の少なくともいず
れかの信号源を取出す光ヘツドにおいて、 互いに嵌合する嵌合部がそれぞれ形成されてい
る前記固定用ねじおよび前記押え板を備えてなる
ことを特徴とする光ヘツドの光検知器固定装置。[Scope of Claim for Utility Model Registration] A casing that houses an optical system that focuses laser light from a light source onto a disk using a condensing system that includes an objective lens and receives reflected light from the disk, and this casing. a photodetector support plate which is integrated with a photodetector having a plurality of light receiving areas divided into at least one boundary line on the flange surface of the body and is fixed together with a presser plate by tightening using fixing screws; In an optical head that extracts a signal source for at least one of focusing control and tracking control of the objective lens by guiding reflected light received through the optical system to the light receiving area, fitting portions that fit into each other are formed. A photodetector fixing device for an optical head, comprising the fixing screw and the presser plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9195787U JPS64814U (en) | 1987-06-17 | 1987-06-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9195787U JPS64814U (en) | 1987-06-17 | 1987-06-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS64814U true JPS64814U (en) | 1989-01-05 |
Family
ID=30953215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9195787U Pending JPS64814U (en) | 1987-06-17 | 1987-06-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS64814U (en) |
-
1987
- 1987-06-17 JP JP9195787U patent/JPS64814U/ja active Pending