JPH0230124U - - Google Patents
Info
- Publication number
- JPH0230124U JPH0230124U JP10861788U JP10861788U JPH0230124U JP H0230124 U JPH0230124 U JP H0230124U JP 10861788 U JP10861788 U JP 10861788U JP 10861788 U JP10861788 U JP 10861788U JP H0230124 U JPH0230124 U JP H0230124U
- Authority
- JP
- Japan
- Prior art keywords
- critical angle
- angle prism
- base
- projection
- optical pickup
- 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 3
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
- Optical Head (AREA)
Description
第１図は本考案の実施例を説明する概略構成図
、第２図は本考案の実施例の要部構成図、第３図
は他の実施例を説明する要部構成図、第４図はさ
らに他の実施例を説明する装置の正面図、第５図
は従来例を説明する概略構成図、第６図は従来例
の要部構成図である。
８……臨界角プリズム、１１，１６……ベース
、１７……円柱突起、１８……取手。
Fig. 1 is a schematic block diagram explaining an embodiment of the present invention, Fig. 2 is a block diagram of main parts of an embodiment of the present invention, Fig. 3 is a block diagram of main parts explaining another embodiment, and Fig. 4 5 is a schematic diagram illustrating a conventional example, and FIG. 6 is a diagram illustrating a main part of the conventional example. 8... Critical angle prism, 11, 16... Base, 17... Cylindrical projection, 18... Handle.
Claims (1)
アツプの焦点位置検出手段に臨界角プリズムを用
い、該臨界角プリズムが位置調整用機構を有する
ベースに固着した光ピツクアツプにおいて、前記
ベースに円柱の突起を設け、該突起は、前記臨界
角プリズムへ入射する光ビームに対して直交し、
さらに入射した光ビームが臨界角プリズム内で最
初に反射する位置に前記円柱の突起の中心軸があ
つて、前記突起を前記光ピツクアツプの筐体に設
けた孔に嵌挿させたことを特徴とする光ピツクア
ツプ。 (2) 前記臨界角プリズムのベースに設けた円柱
の突起に対して、直交してなる棒を前記ベースに
設けたことを特徴とする請求項(1)記載の光ピツ
クアツプ。[Scope of Claim for Utility Model Registration] (1) A critical angle prism is used as a focal position detection means of an optical pickup for recording and reproducing information on a record carrier, and the critical angle prism is fixed to a base having a position adjustment mechanism. in the pick-up, the base is provided with a cylindrical projection, the projection being perpendicular to the light beam incident on the critical angle prism;
Furthermore, the center axis of the projection of the cylinder is located at a position where the incident light beam is first reflected within the critical angle prism, and the projection is fitted into a hole provided in the housing of the optical pickup. Light pick-up. (2) The optical pickup according to claim 1, characterized in that the base is provided with a rod orthogonal to the cylindrical protrusion provided on the base of the critical angle prism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10861788U JPH0230124U (en) | 1988-08-18 | 1988-08-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10861788U JPH0230124U (en) | 1988-08-18 | 1988-08-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0230124U true JPH0230124U (en) | 1990-02-26 |
Family
ID=31344120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10861788U Pending JPH0230124U (en) | 1988-08-18 | 1988-08-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0230124U (en) |
-
1988
- 1988-08-18 JP JP10861788U patent/JPH0230124U/ja active Pending
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