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JPS523406A - Optical head - Google Patents

Optical head

Info

Publication number
JPS523406A
JPS523406A JP50079400A JP7940075A JPS523406A JP S523406 A JPS523406 A JP S523406A JP 50079400 A JP50079400 A JP 50079400A JP 7940075 A JP7940075 A JP 7940075A JP S523406 A JPS523406 A JP S523406A
Authority
JP
Japan
Prior art keywords
optical head
magnetically
sink
tracking
detect
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
JP50079400A
Other languages
Japanese (ja)
Inventor
Toshimitsu Miyauchi
Yoshito Tsunoda
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP50079400A priority Critical patent/JPS523406A/en
Publication of JPS523406A publication Critical patent/JPS523406A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE: Using magnetic substance for a heat-sink to fix semiconductor LASER, moving a light source slightly to two direction directly and magnetically for tracking, to detect the information from recording medium.
COPYRIGHT: (C)1977,JPO&Japio
JP50079400A 1975-06-27 1975-06-27 Optical head Pending JPS523406A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50079400A JPS523406A (en) 1975-06-27 1975-06-27 Optical head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50079400A JPS523406A (en) 1975-06-27 1975-06-27 Optical head

Publications (1)

Publication Number Publication Date
JPS523406A true JPS523406A (en) 1977-01-11

Family

ID=13688791

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50079400A Pending JPS523406A (en) 1975-06-27 1975-06-27 Optical head

Country Status (1)

Country Link
JP (1) JPS523406A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7308008B2 (en) * 2002-11-08 2007-12-11 Finisar Corporation Magnetically controlled heat sink

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7308008B2 (en) * 2002-11-08 2007-12-11 Finisar Corporation Magnetically controlled heat sink

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