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
Application number
JP10861788U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP10861788U priority Critical patent/JPH0230124U/ja
Publication of JPH0230124U publication Critical patent/JPH0230124U/ja
Pending legal-status Critical Current

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Landscapes

  • Optical Head (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

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)

【実用新案登録請求の範囲】 (1) 記録担体に情報を記録、再生する光ピツク
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.
JP10861788U 1988-08-18 1988-08-18 Pending JPH0230124U (en)

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)

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