JPH0185919U - - Google Patents

Info

Publication number
JPH0185919U
JPH0185919U JP17981987U JP17981987U JPH0185919U JP H0185919 U JPH0185919 U JP H0185919U JP 17981987 U JP17981987 U JP 17981987U JP 17981987 U JP17981987 U JP 17981987U JP H0185919 U JPH0185919 U JP H0185919U
Authority
JP
Japan
Prior art keywords
light
distance
recording surface
light receiving
receiving means
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
JP17981987U
Other languages
English (en)
Other versions
JPH0610490Y2 (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 JP1987179819U priority Critical patent/JPH0610490Y2/ja
Publication of JPH0185919U publication Critical patent/JPH0185919U/ja
Application granted granted Critical
Publication of JPH0610490Y2 publication Critical patent/JPH0610490Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)

Description

【図面の簡単な説明】
第1図は本考案に係る光学式情報読取装置の光
学系読取機構及び傾斜検出手段の概略平面図で、
第2図は同側面図、第3図は従来の光学式情報読
取装置の傾斜検出機構を示す概略構成図で、第4
図のイ,ロは同検出機構の発光手段と受光手段と
の異る配置を示す平面図である。 1……記録媒体、3……発光素子、A,B,C
,D……受光素子、5……傾斜補正機構、6……
距離補正機構、7……対物レンズ、8,9,11
,12……差動アンプ、10,13……減算器。

Claims (1)

    【実用新案登録請求の範囲】
  1. 記録媒体の記録面に対する記録情報読取用光ビ
    ームの光軸の直交関係のずれまたは距離の変化を
    検出するために記録媒体の記録面へ向けて照射さ
    れる発光手段と、この照射光の記録面による反射
    光を受光する傾斜用及び距離用の受光手段とから
    なり、この各受光手段の受光出力に応じて前記の
    光軸の傾斜を補正する傾斜補正手段または距離補
    正手段を制御して上記の直交関係または距離を一
    定に維持するようにしたことを特徴とする光学式
    情報読取装置。
JP1987179819U 1987-11-26 1987-11-26 光学式情報読取装置 Expired - Lifetime JPH0610490Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987179819U JPH0610490Y2 (ja) 1987-11-26 1987-11-26 光学式情報読取装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987179819U JPH0610490Y2 (ja) 1987-11-26 1987-11-26 光学式情報読取装置

Publications (2)

Publication Number Publication Date
JPH0185919U true JPH0185919U (ja) 1989-06-07
JPH0610490Y2 JPH0610490Y2 (ja) 1994-03-16

Family

ID=31471361

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987179819U Expired - Lifetime JPH0610490Y2 (ja) 1987-11-26 1987-11-26 光学式情報読取装置

Country Status (1)

Country Link
JP (1) JPH0610490Y2 (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5522235A (en) * 1978-07-31 1980-02-16 Teac Co Optical reproducing device
JPS57195340A (en) * 1981-05-27 1982-12-01 Sony Corp Optical disk player

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5522235A (en) * 1978-07-31 1980-02-16 Teac Co Optical reproducing device
JPS57195340A (en) * 1981-05-27 1982-12-01 Sony Corp Optical disk player

Also Published As

Publication number Publication date
JPH0610490Y2 (ja) 1994-03-16

Similar Documents

Publication Publication Date Title
JPS60120522U (ja) 光学式記録情報読取装置
JPS61111036U (ja)
JPH0185919U (ja)
JPS6355217U (ja)
JPS62186228U (ja)
JPS63118714U (ja)
JPH01133316U (ja)
JPS63200225U (ja)
JPS6157319U (ja)
JPH0166614U (ja)
JPH0481222U (ja)
JPS6452124U (ja)
JPH0197414U (ja)
JPS61187020U (ja)
JPS63193221U (ja)
JPH0246920U (ja)
JPS59157224U (ja) 照射ビ−ム制御装置
JPS6056925U (ja) 記録情報読取装置
JPS6412221U (ja)
JPS6311724U (ja)
JPS6412220U (ja)
JPS6222726U (ja)
JPH01133313U (ja)
JPH01165918U (ja)
JPH0193620U (ja)