JPS6117054B2 - - Google Patents

Info

Publication number
JPS6117054B2
JPS6117054B2 JP7091978A JP7091978A JPS6117054B2 JP S6117054 B2 JPS6117054 B2 JP S6117054B2 JP 7091978 A JP7091978 A JP 7091978A JP 7091978 A JP7091978 A JP 7091978A JP S6117054 B2 JPS6117054 B2 JP S6117054B2
Authority
JP
Japan
Prior art keywords
shaped holder
light source
ring
disc
permanent magnets
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
Application number
JP7091978A
Other languages
English (en)
Japanese (ja)
Other versions
JPS54162506A (en
Inventor
Jun Matsumoto
Masanori Ogino
Tooru Fujishima
Kyo Yamashita
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 JP7091978A priority Critical patent/JPS54162506A/ja
Publication of JPS54162506A publication Critical patent/JPS54162506A/ja
Publication of JPS6117054B2 publication Critical patent/JPS6117054B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Mechanical Optical Scanning Systems (AREA)
  • Optical Recording Or Reproduction (AREA)
JP7091978A 1978-06-14 1978-06-14 Optical system video disc reproducer Granted JPS54162506A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7091978A JPS54162506A (en) 1978-06-14 1978-06-14 Optical system video disc reproducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7091978A JPS54162506A (en) 1978-06-14 1978-06-14 Optical system video disc reproducer

Publications (2)

Publication Number Publication Date
JPS54162506A JPS54162506A (en) 1979-12-24
JPS6117054B2 true JPS6117054B2 (enrdf_load_stackoverflow) 1986-05-06

Family

ID=13445384

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7091978A Granted JPS54162506A (en) 1978-06-14 1978-06-14 Optical system video disc reproducer

Country Status (1)

Country Link
JP (1) JPS54162506A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5730127A (en) * 1980-07-30 1982-02-18 Nippon Columbia Co Ltd Movable light emitting element
JPS57195635U (enrdf_load_stackoverflow) * 1981-06-09 1982-12-11

Also Published As

Publication number Publication date
JPS54162506A (en) 1979-12-24

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