JPS6064421U - Optical pick-up device - Google Patents
Optical pick-up deviceInfo
- Publication number
- JPS6064421U JPS6064421U JP15621483U JP15621483U JPS6064421U JP S6064421 U JPS6064421 U JP S6064421U JP 15621483 U JP15621483 U JP 15621483U JP 15621483 U JP15621483 U JP 15621483U JP S6064421 U JPS6064421 U JP S6064421U
- Authority
- JP
- Japan
- Prior art keywords
- light
- optical path
- path system
- irradiates
- disc
- 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
Landscapes
- Optical Head (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来９ピツクアツプ装置を示す図、第２図は信
号検出特性を示す図、第３図はピットと・ビーム光の関
係を示す図、第４図は本考案に係る遮光板とビーム光の
関係を示す図である。
見は第１光路系、１１は第２光路系１，１１は遮光板。Fig. 1 is a diagram showing a conventional 9-pickup device, Fig. 2 is a diagram showing signal detection characteristics, Fig. 3 is a diagram showing the relationship between pits and beam light, and Fig. 4 is a diagram showing the light shielding plate and beam according to the present invention. It is a figure showing the relationship of light. 1 is a first optical path system, 11 is a second optical path system, and 11 is a light shielding plate.
Claims (1)
リッタを経てディスクに照射する第１光路系と、ディ
スクより反射されたビーム光を前記偏光ビームスプリッ
タを経てセンサ手段に照射する第２光゛ 路系を有し
、前記第２光路系の前記偏光ビームスプリッタと前記セ
ンサ手段の間に、ディスクのピットでない部分からの反
射光を遮光す仝遮光板が配置されていることを特徴とす
る光学式ピックアップ装置。The beam light output from the light source is polarized,
a first optical path system that irradiates the disc through the liter, and a second optical path system that irradiates the beam light reflected from the disc to the sensor means through the polarizing beam splitter, and the polarized light of the second optical path system An optical pickup device characterized in that a light shielding plate is disposed between the beam splitter and the sensor means to shield light reflected from a portion of the disk other than a pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15621483U JPS6064421U (en) | 1983-10-07 | 1983-10-07 | Optical pick-up device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15621483U JPS6064421U (en) | 1983-10-07 | 1983-10-07 | Optical pick-up device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6064421U true JPS6064421U (en) | 1985-05-07 |
Family
ID=30344765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15621483U Pending JPS6064421U (en) | 1983-10-07 | 1983-10-07 | Optical pick-up device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6064421U (en) |
-
1983
- 1983-10-07 JP JP15621483U patent/JPS6064421U/en active Pending
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