JPS5315107A - Spacing detector of optical recorder/repoducer - Google Patents

Spacing detector of optical recorder/repoducer

Info

Publication number
JPS5315107A
JPS5315107A JP8954976A JP8954976A JPS5315107A JP S5315107 A JPS5315107 A JP S5315107A JP 8954976 A JP8954976 A JP 8954976A JP 8954976 A JP8954976 A JP 8954976A JP S5315107 A JPS5315107 A JP S5315107A
Authority
JP
Japan
Prior art keywords
repoducer
optical recorder
spacing detector
spacing
changes
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.)
Granted
Application number
JP8954976A
Other languages
Japanese (ja)
Other versions
JPS5828655B2 (en
Inventor
Kazuo Okada
Naohiro Tomikawa
Tadao Nagai
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.)
Teac Corp
Mitsubishi Electric Corp
Original Assignee
Teac Corp
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 Teac Corp, Mitsubishi Electric Corp filed Critical Teac Corp
Priority to JP51089549A priority Critical patent/JPS5828655B2/en
Publication of JPS5315107A publication Critical patent/JPS5315107A/en
Publication of JPS5828655B2 publication Critical patent/JPS5828655B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE: The changes in the spacing between a recording medium and a condensing lens are stably detected by the changes in the optical path of a detecting reflection light beam.
COPYRIGHT: (C)1978,JPO&Japio
JP51089549A 1976-07-27 1976-07-27 Interval detection device for optical recorder/player Expired JPS5828655B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51089549A JPS5828655B2 (en) 1976-07-27 1976-07-27 Interval detection device for optical recorder/player

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51089549A JPS5828655B2 (en) 1976-07-27 1976-07-27 Interval detection device for optical recorder/player

Publications (2)

Publication Number Publication Date
JPS5315107A true JPS5315107A (en) 1978-02-10
JPS5828655B2 JPS5828655B2 (en) 1983-06-17

Family

ID=13973891

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51089549A Expired JPS5828655B2 (en) 1976-07-27 1976-07-27 Interval detection device for optical recorder/player

Country Status (1)

Country Link
JP (1) JPS5828655B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6021770A (en) * 1983-07-14 1985-02-04 神田　潔 Falling apparatus for refuge

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5229239A (en) * 1975-08-30 1977-03-04 Matsushita Electric Ind Co Ltd Recorder and regenerating device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5229239A (en) * 1975-08-30 1977-03-04 Matsushita Electric Ind Co Ltd Recorder and regenerating device

Also Published As

Publication number Publication date
JPS5828655B2 (en) 1983-06-17

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