JPS6215865Y2 - - Google Patents

Info

Publication number
JPS6215865Y2
JPS6215865Y2 JP11250581U JP11250581U JPS6215865Y2 JP S6215865 Y2 JPS6215865 Y2 JP S6215865Y2 JP 11250581 U JP11250581 U JP 11250581U JP 11250581 U JP11250581 U JP 11250581U JP S6215865 Y2 JPS6215865 Y2 JP S6215865Y2
Authority
JP
Japan
Prior art keywords
error signal
pickup device
axis
laser beam
optical sensor
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.)
Expired
Application number
JP11250581U
Other languages
English (en)
Japanese (ja)
Other versions
JPS5817630U (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 JP11250581U priority Critical patent/JPS5817630U/ja
Publication of JPS5817630U publication Critical patent/JPS5817630U/ja
Application granted granted Critical
Publication of JPS6215865Y2 publication Critical patent/JPS6215865Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP11250581U 1981-07-28 1981-07-28 光ピツクアツプ装置 Granted JPS5817630U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11250581U JPS5817630U (ja) 1981-07-28 1981-07-28 光ピツクアツプ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11250581U JPS5817630U (ja) 1981-07-28 1981-07-28 光ピツクアツプ装置

Publications (2)

Publication Number Publication Date
JPS5817630U JPS5817630U (ja) 1983-02-03
JPS6215865Y2 true JPS6215865Y2 (en]) 1987-04-22

Family

ID=29906831

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11250581U Granted JPS5817630U (ja) 1981-07-28 1981-07-28 光ピツクアツプ装置

Country Status (1)

Country Link
JP (1) JPS5817630U (en])

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6094094U (ja) * 1983-11-30 1985-06-27 吉田マグネツト産業株式会社 海苔の洗浄装置

Also Published As

Publication number Publication date
JPS5817630U (ja) 1983-02-03

Similar Documents

Publication Publication Date Title
JPH0626972Y2 (ja) 光学式ピツクアツプ装置
JPS5821334B2 (ja) 自動焦点調節装置
JPH02304722A (ja) マルチビーム光ディスク装置のトラッキング誤差検出部
JP3186221B2 (ja) 光学式記録情報再生装置
JPS6374125A (ja) 光学式ピツクアツプ装置
JPH0443329B2 (en])
JPS6215865Y2 (en])
JPS63168842A (ja) 焦点誤差検出装置及びこれに用いられる光検出器の受光領域幅の選定方法
US4633454A (en) Optical information pickup apparatus
US6801491B1 (en) Focus error detecting apparatus of optical pickup with a light separating and astigmatism generation optical element and detection method thereof
KR100313247B1 (ko) 비점수차를 이용한 포커스 에러 검출 장치 및 방법
JPS6142743A (ja) 光学的情報読取装置
JPS6223376B2 (en])
US6946634B2 (en) Optical pickup device
JP2644110B2 (ja) 光記録再生装置
KR0165598B1 (ko) 광 디스크 재생시스템의 트랙킹 서보 제어 장치
JPH0240576Y2 (en])
JP2631975B2 (ja) フォーカス検出装置
JPH01241031A (ja) 光学的情報処理装置
JPS6341137B2 (en])
JPS6055519A (ja) 光学式情報再生装置
JPH0580051B2 (en])
JPH01146138A (ja) 光学的情報記録再生装置
JPS6076038A (ja) 光学式情報処理装置
JPS61227233A (ja) 光学的読取装置