JPS624906Y2 - - Google Patents

Info

Publication number
JPS624906Y2
JPS624906Y2 JP1981015624U JP1562481U JPS624906Y2 JP S624906 Y2 JPS624906 Y2 JP S624906Y2 JP 1981015624 U JP1981015624 U JP 1981015624U JP 1562481 U JP1562481 U JP 1562481U JP S624906 Y2 JPS624906 Y2 JP S624906Y2
Authority
JP
Japan
Prior art keywords
signal
lens
focus
circuit
recording surface
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
JP1981015624U
Other languages
English (en)
Japanese (ja)
Other versions
JPS57129240U (de
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 filed Critical
Priority to JP1981015624U priority Critical patent/JPS624906Y2/ja
Publication of JPS57129240U publication Critical patent/JPS57129240U/ja
Application granted granted Critical
Publication of JPS624906Y2 publication Critical patent/JPS624906Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Recording Or Reproduction (AREA)
JP1981015624U 1981-02-06 1981-02-06 Expired JPS624906Y2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1981015624U JPS624906Y2 (de) 1981-02-06 1981-02-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1981015624U JPS624906Y2 (de) 1981-02-06 1981-02-06

Publications (2)

Publication Number Publication Date
JPS57129240U JPS57129240U (de) 1982-08-12
JPS624906Y2 true JPS624906Y2 (de) 1987-02-04

Family

ID=29813618

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1981015624U Expired JPS624906Y2 (de) 1981-02-06 1981-02-06

Country Status (1)

Country Link
JP (1) JPS624906Y2 (de)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54128707A (en) * 1978-03-27 1979-10-05 Mca Disco Vision Focus servo device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54128707A (en) * 1978-03-27 1979-10-05 Mca Disco Vision Focus servo device

Also Published As

Publication number Publication date
JPS57129240U (de) 1982-08-12

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