JPS54116902A - Device for correcting focus - Google Patents

Device for correcting focus

Info

Publication number
JPS54116902A
JPS54116902A JP2378278A JP2378278A JPS54116902A JP S54116902 A JPS54116902 A JP S54116902A JP 2378278 A JP2378278 A JP 2378278A JP 2378278 A JP2378278 A JP 2378278A JP S54116902 A JPS54116902 A JP S54116902A
Authority
JP
Japan
Prior art keywords
correcting focus
correcting
focus
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
JP2378278A
Other languages
Japanese (ja)
Inventor
Seiji Hashimoto
Kunisato Kafuku
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.)
Nippon Columbia Co Ltd
Original Assignee
Nippon Columbia Co 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 Nippon Columbia Co Ltd filed Critical Nippon Columbia Co Ltd
Priority to JP2378278A priority Critical patent/JPS54116902A/en
Publication of JPS54116902A publication Critical patent/JPS54116902A/en
Pending legal-status Critical Current

Links

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Optical Recording Or Reproduction (AREA)
JP2378278A 1978-03-02 1978-03-02 Device for correcting focus Pending JPS54116902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2378278A JPS54116902A (en) 1978-03-02 1978-03-02 Device for correcting focus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2378278A JPS54116902A (en) 1978-03-02 1978-03-02 Device for correcting focus

Publications (1)

Publication Number Publication Date
JPS54116902A true JPS54116902A (en) 1979-09-11

Family

ID=12119885

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2378278A Pending JPS54116902A (en) 1978-03-02 1978-03-02 Device for correcting focus

Country Status (1)

Country Link
JP (1) JPS54116902A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6148136A (en) * 1984-08-11 1986-03-08 Matsushita Electric Ind Co Ltd Optical information reproducing device
JPS6150224A (en) * 1984-08-16 1986-03-12 Matsushita Electric Ind Co Ltd Control of optical information reproducer
US5090003A (en) * 1988-08-09 1992-02-18 Matsushita Electric Industrial Co., Ltd. Method and apparatus for adjusting target position of focusing of light beam

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5137248A (en) * 1974-09-26 1976-03-29 Victor Company Of Japan Kogakubiimu no shotenchoseihoshiki
JPS5161803A (en) * 1974-09-30 1976-05-28 Mca Disco Vision

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5137248A (en) * 1974-09-26 1976-03-29 Victor Company Of Japan Kogakubiimu no shotenchoseihoshiki
JPS5161803A (en) * 1974-09-30 1976-05-28 Mca Disco Vision

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6148136A (en) * 1984-08-11 1986-03-08 Matsushita Electric Ind Co Ltd Optical information reproducing device
JPH0527172B2 (en) * 1984-08-11 1993-04-20 Matsushita Electric Ind Co Ltd
JPS6150224A (en) * 1984-08-16 1986-03-12 Matsushita Electric Ind Co Ltd Control of optical information reproducer
US5090003A (en) * 1988-08-09 1992-02-18 Matsushita Electric Industrial Co., Ltd. Method and apparatus for adjusting target position of focusing of light beam

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