JPH0230095B2 - - Google Patents

Info

Publication number
JPH0230095B2
JPH0230095B2 JP55164212A JP16421280A JPH0230095B2 JP H0230095 B2 JPH0230095 B2 JP H0230095B2 JP 55164212 A JP55164212 A JP 55164212A JP 16421280 A JP16421280 A JP 16421280A JP H0230095 B2 JPH0230095 B2 JP H0230095B2
Authority
JP
Japan
Prior art keywords
beam splitter
pickup device
polarizing beam
light
record carrier
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 - Lifetime
Application number
JP55164212A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5788535A (en
Inventor
Yukio Kurata
Kaneki Matsui
Haruhisa Takiguchi
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 JP55164212A priority Critical patent/JPS5788535A/ja
Publication of JPS5788535A publication Critical patent/JPS5788535A/ja
Publication of JPH0230095B2 publication Critical patent/JPH0230095B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
JP55164212A 1980-11-20 1980-11-20 Pickup device Granted JPS5788535A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55164212A JPS5788535A (en) 1980-11-20 1980-11-20 Pickup device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55164212A JPS5788535A (en) 1980-11-20 1980-11-20 Pickup device

Publications (2)

Publication Number Publication Date
JPS5788535A JPS5788535A (en) 1982-06-02
JPH0230095B2 true JPH0230095B2 (US06724976-20040420-M00002.png) 1990-07-04

Family

ID=15788791

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55164212A Granted JPS5788535A (en) 1980-11-20 1980-11-20 Pickup device

Country Status (1)

Country Link
JP (1) JPS5788535A (US06724976-20040420-M00002.png)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5959325U (ja) * 1982-10-09 1984-04-18 山下印刷紙器株式会社 耐水性及び非通気性を有する段ボ−ル
JPS59164940U (ja) * 1983-04-20 1984-11-05 三洋電機株式会社 光学式ピツクアツプ
EP0329304B1 (en) * 1988-02-10 1994-05-11 THORN EMI plc Optical recording

Also Published As

Publication number Publication date
JPS5788535A (en) 1982-06-02

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