JPH0450659B2 - - Google Patents

Info

Publication number
JPH0450659B2
JPH0450659B2 JP57082951A JP8295182A JPH0450659B2 JP H0450659 B2 JPH0450659 B2 JP H0450659B2 JP 57082951 A JP57082951 A JP 57082951A JP 8295182 A JP8295182 A JP 8295182A JP H0450659 B2 JPH0450659 B2 JP H0450659B2
Authority
JP
Japan
Prior art keywords
objective lens
information
information track
tracking
focusing
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
JP57082951A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58199445A (ja
Inventor
Yoshiharu Hoshino
Shinji Endo
Tatsuo Hara
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.)
Olympus Corp
Original Assignee
Olympus Optical Co Ltd
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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP8295182A priority Critical patent/JPS58199445A/ja
Publication of JPS58199445A publication Critical patent/JPS58199445A/ja
Publication of JPH0450659B2 publication Critical patent/JPH0450659B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Optical Recording Or Reproduction (AREA)
JP8295182A 1982-05-17 1982-05-17 情報トラツクの読取り装置 Granted JPS58199445A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8295182A JPS58199445A (ja) 1982-05-17 1982-05-17 情報トラツクの読取り装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8295182A JPS58199445A (ja) 1982-05-17 1982-05-17 情報トラツクの読取り装置

Publications (2)

Publication Number Publication Date
JPS58199445A JPS58199445A (ja) 1983-11-19
JPH0450659B2 true JPH0450659B2 (en]) 1992-08-14

Family

ID=13788523

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8295182A Granted JPS58199445A (ja) 1982-05-17 1982-05-17 情報トラツクの読取り装置

Country Status (1)

Country Link
JP (1) JPS58199445A (en])

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5372906U (en]) * 1976-11-20 1978-06-19
JPS6053372B2 (ja) * 1980-07-30 1985-11-25 株式会社日立製作所 光デイスク装置用の光学ヘツド

Also Published As

Publication number Publication date
JPS58199445A (ja) 1983-11-19

Similar Documents

Publication Publication Date Title
US4472024A (en) Apparatus for driving objective lens
JPH0142053B2 (en])
JPH01235040A (ja) 光情報記録再生装置の対物レンズ支持装置
JPS6214891B2 (en])
JPS60138746A (ja) 対物レンズ駆動装置およびその製造方法
JPS58182140A (ja) 対物レンズ駆動装置
JPS6259370B2 (en])
JPS5864648A (ja) 対物レンズ駆動装置
JPH0132579B2 (en])
JPH0450659B2 (en])
JPS59148151A (ja) 情報トラツクの読取り装置
JPS59124043A (ja) 情報トラツクの読取り装置
JPS601630A (ja) 情報トラツクの読取り装置
JPH054732B2 (en])
JPS639307B2 (en])
JPS5812145A (ja) 対物レンズ駆動装置
JPS6029945A (ja) 光情報読取り装置の対物レンズ支持装置
JPS58182142A (ja) 情報トラツクの読取り装置
JPH0766551B2 (ja) 情報トラックの読取り装置
JPH0237129Y2 (en])
JPS58177529A (ja) 情報トラツクの読み取り装置
JPH0640399B2 (ja) 対物レンズ駆動装置の製造方法
JPS59201236A (ja) 情報トラツクの読取り装置
JPS639309B2 (en])
JPS59165249A (ja) 情報トラツクの読取り装置