JPS5771537A - Optical pickup device - Google Patents

Optical pickup device

Info

Publication number
JPS5771537A
JPS5771537A JP55146525A JP14652580A JPS5771537A JP S5771537 A JPS5771537 A JP S5771537A JP 55146525 A JP55146525 A JP 55146525A JP 14652580 A JP14652580 A JP 14652580A JP S5771537 A JPS5771537 A JP S5771537A
Authority
JP
Japan
Prior art keywords
splitter
polarizing beam
beam splitter
reflected
wavelength plate
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
JP55146525A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6115496B2 (enrdf_load_stackoverflow
Inventor
Yoshio Miyake
Riichi Saeki
Toshio Takei
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.)
Mitsubishi Electric Corp
Original Assignee
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP55146525A priority Critical patent/JPS5771537A/ja
Publication of JPS5771537A publication Critical patent/JPS5771537A/ja
Publication of JPS6115496B2 publication Critical patent/JPS6115496B2/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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
JP55146525A 1980-10-20 1980-10-20 Optical pickup device Granted JPS5771537A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55146525A JPS5771537A (en) 1980-10-20 1980-10-20 Optical pickup device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55146525A JPS5771537A (en) 1980-10-20 1980-10-20 Optical pickup device

Publications (2)

Publication Number Publication Date
JPS5771537A true JPS5771537A (en) 1982-05-04
JPS6115496B2 JPS6115496B2 (enrdf_load_stackoverflow) 1986-04-24

Family

ID=15409616

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55146525A Granted JPS5771537A (en) 1980-10-20 1980-10-20 Optical pickup device

Country Status (1)

Country Link
JP (1) JPS5771537A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58200443A (ja) * 1982-05-19 1983-11-22 Matsushita Electric Ind Co Ltd 光学的記録再生装置の光学装置
FR2584223A1 (fr) * 1985-06-28 1987-01-02 Thomson Alcatel Gigadisc Memoire optique a suivi de piste echantillonne pour support d'information pregrave.
JPH03106525U (enrdf_load_stackoverflow) * 1990-02-20 1991-11-05
US5124868A (en) * 1989-01-25 1992-06-23 Olympus Optical Co., Ltd. Magneto-optic player with improved c/n ratio
US5563870A (en) * 1995-02-14 1996-10-08 Eastman Kodak Company Optical write/read head with laser power control

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58200443A (ja) * 1982-05-19 1983-11-22 Matsushita Electric Ind Co Ltd 光学的記録再生装置の光学装置
FR2584223A1 (fr) * 1985-06-28 1987-01-02 Thomson Alcatel Gigadisc Memoire optique a suivi de piste echantillonne pour support d'information pregrave.
US5124868A (en) * 1989-01-25 1992-06-23 Olympus Optical Co., Ltd. Magneto-optic player with improved c/n ratio
JPH03106525U (enrdf_load_stackoverflow) * 1990-02-20 1991-11-05
US5563870A (en) * 1995-02-14 1996-10-08 Eastman Kodak Company Optical write/read head with laser power control

Also Published As

Publication number Publication date
JPS6115496B2 (enrdf_load_stackoverflow) 1986-04-24

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