JPS6239231U - - Google Patents

Info

Publication number
JPS6239231U
JPS6239231U JP13067885U JP13067885U JPS6239231U JP S6239231 U JPS6239231 U JP S6239231U JP 13067885 U JP13067885 U JP 13067885U JP 13067885 U JP13067885 U JP 13067885U JP S6239231 U JPS6239231 U JP S6239231U
Authority
JP
Japan
Prior art keywords
holding member
optical pickup
lens holding
detection beam
reflection mechanism
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.)
Granted
Application number
JP13067885U
Other languages
Japanese (ja)
Other versions
JPH0725862Y2 (en
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 JP1985130678U priority Critical patent/JPH0725862Y2/en
Publication of JPS6239231U publication Critical patent/JPS6239231U/ja
Application granted granted Critical
Publication of JPH0725862Y2 publication Critical patent/JPH0725862Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Optical Head (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)

Description

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

第１図は本考案による光ピツクアツプのビーム
反射機構の断面図、第２図はその底面図、第３図
は光ピツクアツプの光学部材の構成図、第４図は
従来の光ピツクアツプのビーム反射機構を示す断
面図である。 ２……発光素子、３……回折格子、４……ビー
ムスプリツタ、７……プリズム、８……対物レン
ズ、１２……受光素子、２１……レンズ保持部材
、２２……バランサ、２２ａ……ビーム入射穴、
２２ｂ……テーパ面、Ｂ……検知ビーム。 Figure 1 is a sectional view of the beam reflection mechanism of the optical pickup according to the present invention, Figure 2 is its bottom view, Figure 3 is a configuration diagram of the optical components of the optical pickup, and Figure 4 is the beam reflection mechanism of the conventional optical pickup. FIG. 2... Light emitting element, 3... Diffraction grating, 4... Beam splitter, 7... Prism, 8... Objective lens, 12... Light receiving element, 21... Lens holding member, 22... Balancer, 22a... ...beam entrance hole,
22b...Tapered surface, B...Detection beam.

Claims (1)

【実用新案登録請求の範囲】 (1) 検知ビームを発生する発光素子と、この検
知ビームを光デイスクの記録面に集光させる対物
レンズと、光デイスクの記録面からの反射ビーム
を検知する受光素子とが設けられているとともに
、前記対物レンズがレンズ保持部材によつて保持
されている光ピツクアツプにおいて、レンズ保持
部材の検知ビーム入射側には、ビーム入射穴が穿
設されており、且つこのビーム入射穴の周囲には
、検知ビームを反射させるためのテーパ面が形成
されていることを特徴とする光ピツクアツプのビ
ーム反射機構。 (2) テーパ面は、レンズ保持部材の検知ビーム
入射側に固定されたバランサの表面に形成されて
いる実用新案登録請求の範囲第(1)項記載の光ピ
ツクアツプのビーム反射機構。 (3) テーパ面は黒色に塗られている実用新案登
録請求の範囲第(1)項記載の光ピツクアツプのビ
ーム反射機構。[Claims for Utility Model Registration] (1) A light emitting element that generates a detection beam, an objective lens that focuses the detection beam on the recording surface of an optical disk, and a light receiver that detects the reflected beam from the recording surface of the optical disk. In the optical pickup in which the objective lens is held by a lens holding member, a beam entrance hole is formed on the detection beam incident side of the lens holding member, and the objective lens is held by a lens holding member. A beam reflection mechanism for an optical pickup characterized by a tapered surface formed around the beam entrance hole to reflect the detection beam. (2) The beam reflection mechanism for an optical pickup according to claim 1, wherein the tapered surface is formed on the surface of a balancer fixed to the detection beam incident side of the lens holding member. (3) The beam reflection mechanism of the optical pickup according to claim (1) of the utility model registration, wherein the tapered surface is painted black.
JP1985130678U 1985-08-26 1985-08-26 Optical pickup lens device Expired - Lifetime JPH0725862Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985130678U JPH0725862Y2 (en) 1985-08-26 1985-08-26 Optical pickup lens device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985130678U JPH0725862Y2 (en) 1985-08-26 1985-08-26 Optical pickup lens device

Publications (2)

Publication Number Publication Date
JPS6239231U true JPS6239231U (en) 1987-03-09
JPH0725862Y2 JPH0725862Y2 (en) 1995-06-07

Family

ID=31028407

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985130678U Expired - Lifetime JPH0725862Y2 (en) 1985-08-26 1985-08-26 Optical pickup lens device

Country Status (1)

Country Link
JP (1) JPH0725862Y2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5590037U (en) * 1978-12-13 1980-06-21
JPS59171039A (en) * 1983-03-18 1984-09-27 Matsushita Electric Ind Co Ltd Optical recording and reproducing device
JPS6035341A (en) * 1983-08-03 1985-02-23 Sony Corp Driving device
JPS60105905A (en) * 1983-11-14 1985-06-11 Matsushita Electric Ind Co Ltd Optical disc evaluating apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5590037U (en) * 1978-12-13 1980-06-21
JPS59171039A (en) * 1983-03-18 1984-09-27 Matsushita Electric Ind Co Ltd Optical recording and reproducing device
JPS6035341A (en) * 1983-08-03 1985-02-23 Sony Corp Driving device
JPS60105905A (en) * 1983-11-14 1985-06-11 Matsushita Electric Ind Co Ltd Optical disc evaluating apparatus

Also Published As

Publication number Publication date
JPH0725862Y2 (en) 1995-06-07

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