JPS5439103A - Medium locator for fucus servo - Google Patents

Medium locator for fucus servo

Info

Publication number
JPS5439103A
JPS5439103A JP10473977A JP10473977A JPS5439103A JP S5439103 A JPS5439103 A JP S5439103A JP 10473977 A JP10473977 A JP 10473977A JP 10473977 A JP10473977 A JP 10473977A JP S5439103 A JPS5439103 A JP S5439103A
Authority
JP
Japan
Prior art keywords
medium
fucus
servo
locator
optical beam
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.)
Pending
Application number
JP10473977A
Other languages
Japanese (ja)
Inventor
Yoshihiko Honjo
Takashi Tsurukubo
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP10473977A priority Critical patent/JPS5439103A/en
Publication of JPS5439103A publication Critical patent/JPS5439103A/en
Pending legal-status Critical Current

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  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE: To accurately locate a medium and to obtain information signals having high S/N ratios by turning both an optical beam for recording and reproducing information signals and an optical beam for locating the medium of an objective lens into linearly polarized lights having different deflecting planes.
COPYRIGHT: (C)1979,JPO&Japio
JP10473977A 1977-09-02 1977-09-02 Medium locator for fucus servo Pending JPS5439103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10473977A JPS5439103A (en) 1977-09-02 1977-09-02 Medium locator for fucus servo

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10473977A JPS5439103A (en) 1977-09-02 1977-09-02 Medium locator for fucus servo

Publications (1)

Publication Number Publication Date
JPS5439103A true JPS5439103A (en) 1979-03-26

Family

ID=14388857

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10473977A Pending JPS5439103A (en) 1977-09-02 1977-09-02 Medium locator for fucus servo

Country Status (1)

Country Link
JP (1) JPS5439103A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462758A1 (en) * 1979-08-03 1981-02-13 Thomson Csf OPTICAL DEVICE FOR ACCESSING A TRACK RUN BY AN INFORMATION CARRIER AND OPTICAL MEMORY SYSTEM COMPRISING SUCH A DEVICE
US4412743A (en) * 1981-09-08 1983-11-01 Discovision Associates Off-axis light beam defect detector
US4466087A (en) * 1981-01-08 1984-08-14 Xerox Corporation Optical memory system for a reading/writing, verifying and tracking module
US4546463A (en) * 1981-04-21 1985-10-08 U.S. Philips Corporation Apparatus for recording and reading information tracks on an optical record carrier with a beam of radiation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51144203A (en) * 1975-06-06 1976-12-11 Hitachi Ltd Political device for information reproduction
JPS5263614A (en) * 1975-11-20 1977-05-26 Sony Corp Information detector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51144203A (en) * 1975-06-06 1976-12-11 Hitachi Ltd Political device for information reproduction
JPS5263614A (en) * 1975-11-20 1977-05-26 Sony Corp Information detector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2462758A1 (en) * 1979-08-03 1981-02-13 Thomson Csf OPTICAL DEVICE FOR ACCESSING A TRACK RUN BY AN INFORMATION CARRIER AND OPTICAL MEMORY SYSTEM COMPRISING SUCH A DEVICE
US4466087A (en) * 1981-01-08 1984-08-14 Xerox Corporation Optical memory system for a reading/writing, verifying and tracking module
US4546463A (en) * 1981-04-21 1985-10-08 U.S. Philips Corporation Apparatus for recording and reading information tracks on an optical record carrier with a beam of radiation
US4412743A (en) * 1981-09-08 1983-11-01 Discovision Associates Off-axis light beam defect detector

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