JPS52123642A - Optical path adjuster for laser beams - Google Patents

Optical path adjuster for laser beams

Info

Publication number
JPS52123642A
JPS52123642A JP4067076A JP4067076A JPS52123642A JP S52123642 A JPS52123642 A JP S52123642A JP 4067076 A JP4067076 A JP 4067076A JP 4067076 A JP4067076 A JP 4067076A JP S52123642 A JPS52123642 A JP S52123642A
Authority
JP
Japan
Prior art keywords
laser beams
optical path
path adjuster
adjuster
shifting
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
JP4067076A
Other languages
Japanese (ja)
Inventor
Sadanobu Kawabe
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 JP4067076A priority Critical patent/JPS52123642A/en
Publication of JPS52123642A publication Critical patent/JPS52123642A/en
Pending 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08547—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements

Landscapes

  • Mechanical Optical Scanning Systems (AREA)
  • Automatic Focus Adjustment (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)

Abstract

PURPOSE:To readily perform accurate optical axis adjustment by shifting the axis of a laser beam by means of a transparent parallel plate in a disc reproducer or the like using laser beams.
JP4067076A 1976-04-09 1976-04-09 Optical path adjuster for laser beams Pending JPS52123642A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4067076A JPS52123642A (en) 1976-04-09 1976-04-09 Optical path adjuster for laser beams

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4067076A JPS52123642A (en) 1976-04-09 1976-04-09 Optical path adjuster for laser beams

Publications (1)

Publication Number Publication Date
JPS52123642A true JPS52123642A (en) 1977-10-18

Family

ID=12586950

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4067076A Pending JPS52123642A (en) 1976-04-09 1976-04-09 Optical path adjuster for laser beams

Country Status (1)

Country Link
JP (1) JPS52123642A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61104338A (en) * 1984-10-24 1986-05-22 Hitachi Ltd Optical information recording and reproducing device
JPS62295010A (en) * 1986-06-16 1987-12-22 Fujitsu Ltd Optical beam adjusting device for optical coupling system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068741A (en) * 1957-03-22 1962-12-18 Askania Werke Ag Objective reading of scales

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068741A (en) * 1957-03-22 1962-12-18 Askania Werke Ag Objective reading of scales

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61104338A (en) * 1984-10-24 1986-05-22 Hitachi Ltd Optical information recording and reproducing device
JPH0524567B2 (en) * 1984-10-24 1993-04-08 Hitachi Ltd
JPS62295010A (en) * 1986-06-16 1987-12-22 Fujitsu Ltd Optical beam adjusting device for optical coupling system

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