JPH0565936B2 - - Google Patents

Info

Publication number
JPH0565936B2
JPH0565936B2 JP62180296A JP18029687A JPH0565936B2 JP H0565936 B2 JPH0565936 B2 JP H0565936B2 JP 62180296 A JP62180296 A JP 62180296A JP 18029687 A JP18029687 A JP 18029687A JP H0565936 B2 JPH0565936 B2 JP H0565936B2
Authority
JP
Japan
Prior art keywords
recording medium
distance
optical system
condensing
spot
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 - Lifetime
Application number
JP62180296A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6423428A (en
Inventor
Kyosuke Yoshimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP18029687A priority Critical patent/JPS6423428A/ja
Publication of JPS6423428A publication Critical patent/JPS6423428A/ja
Publication of JPH0565936B2 publication Critical patent/JPH0565936B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
JP18029687A 1987-07-20 1987-07-20 Recording medium driver and focus tracking device in recording medium driver Granted JPS6423428A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18029687A JPS6423428A (en) 1987-07-20 1987-07-20 Recording medium driver and focus tracking device in recording medium driver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18029687A JPS6423428A (en) 1987-07-20 1987-07-20 Recording medium driver and focus tracking device in recording medium driver

Publications (2)

Publication Number Publication Date
JPS6423428A JPS6423428A (en) 1989-01-26
JPH0565936B2 true JPH0565936B2 (enrdf_load_stackoverflow) 1993-09-20

Family

ID=16080728

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18029687A Granted JPS6423428A (en) 1987-07-20 1987-07-20 Recording medium driver and focus tracking device in recording medium driver

Country Status (1)

Country Link
JP (1) JPS6423428A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5288157A (en) * 1990-05-15 1994-02-22 Seiko Epson Corporation Printing control system having means to correct flight time
JPH04358324A (ja) * 1991-06-05 1992-12-11 Matsushita Electric Ind Co Ltd 対物レンズ衝突防止装置
KR0169820B1 (ko) * 1995-08-22 1999-01-15 김광호 금속 회로 기판을 갖는 칩 스케일 패키지

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58101330U (ja) * 1981-12-25 1983-07-09 パイオニア株式会社 光学装置におけるフオ−カスサ−ボ引込装置
JPS6050634A (ja) * 1983-08-29 1985-03-20 Hitachi Ltd 光ディスク装置
JPS61182643A (ja) * 1985-02-08 1986-08-15 Toshiba Corp 光学ヘツド

Also Published As

Publication number Publication date
JPS6423428A (en) 1989-01-26

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term