JPS6223373B2 - - Google Patents

Info

Publication number
JPS6223373B2
JPS6223373B2 JP56018577A JP1857781A JPS6223373B2 JP S6223373 B2 JPS6223373 B2 JP S6223373B2 JP 56018577 A JP56018577 A JP 56018577A JP 1857781 A JP1857781 A JP 1857781A JP S6223373 B2 JPS6223373 B2 JP S6223373B2
Authority
JP
Japan
Prior art keywords
photodetector
light
photodetectors
detectors
wedge
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
JP56018577A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57133526A (en
Inventor
Kaneki Matsui
Haruhisa Takiguchi
Yukio Kurata
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP1857781A priority Critical patent/JPS57133526A/ja
Publication of JPS57133526A publication Critical patent/JPS57133526A/ja
Publication of JPS6223373B2 publication Critical patent/JPS6223373B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Optical Recording Or Reproduction (AREA)
JP1857781A 1981-02-10 1981-02-10 Processor of optical information Granted JPS57133526A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1857781A JPS57133526A (en) 1981-02-10 1981-02-10 Processor of optical information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1857781A JPS57133526A (en) 1981-02-10 1981-02-10 Processor of optical information

Publications (2)

Publication Number Publication Date
JPS57133526A JPS57133526A (en) 1982-08-18
JPS6223373B2 true JPS6223373B2 (de) 1987-05-22

Family

ID=11975472

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1857781A Granted JPS57133526A (en) 1981-02-10 1981-02-10 Processor of optical information

Country Status (1)

Country Link
JP (1) JPS57133526A (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH069090B2 (ja) * 1984-06-12 1994-02-02 株式会社東芝 光学ヘツド
JPS63279439A (ja) * 1987-05-12 1988-11-16 Matsushita Electric Ind Co Ltd 光学ヘッド

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54104303A (en) * 1978-02-02 1979-08-16 Victor Co Of Japan Ltd Optical system signal reading system
JPS55139642A (en) * 1979-04-18 1980-10-31 Matsushita Electric Ind Co Ltd Optical information recording and reproducing device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54104303A (en) * 1978-02-02 1979-08-16 Victor Co Of Japan Ltd Optical system signal reading system
JPS55139642A (en) * 1979-04-18 1980-10-31 Matsushita Electric Ind Co Ltd Optical information recording and reproducing device

Also Published As

Publication number Publication date
JPS57133526A (en) 1982-08-18

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