JPS5746335A - Optical parts of optical disk information reproducer - Google Patents

Optical parts of optical disk information reproducer

Info

Publication number
JPS5746335A
JPS5746335A JP55121910A JP12191080A JPS5746335A JP S5746335 A JPS5746335 A JP S5746335A JP 55121910 A JP55121910 A JP 55121910A JP 12191080 A JP12191080 A JP 12191080A JP S5746335 A JPS5746335 A JP S5746335A
Authority
JP
Japan
Prior art keywords
parts
optical
disk information
information reproducer
optical disk
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
JP55121910A
Other languages
Japanese (ja)
Inventor
Ikuo Matsuda
Shinichi Tanaka
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP55121910A priority Critical patent/JPS5746335A/en
Publication of JPS5746335A publication Critical patent/JPS5746335A/en
Pending 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
    • G11B7/22—Apparatus or processes for the manufacture of optical heads, e.g. assembly

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)

Abstract

PURPOSE:To reduce the production/assembly cost, by unifying a lens part where the beam is made incident to a photodetector with a prism part where the beam is splitted into plural beams. CONSTITUTION:A plano-convex lens part 8b and a wedge-shaped prism part 12b are produced by making two parts individually and then bonding these two parts together with an optical adhesive material or by injection-molding transparent plastics. In such way, the number of assembling manhours is reduced by a half for the related parts to attain a reduction of the assembling cost.
JP55121910A 1980-09-02 1980-09-02 Optical parts of optical disk information reproducer Pending JPS5746335A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55121910A JPS5746335A (en) 1980-09-02 1980-09-02 Optical parts of optical disk information reproducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55121910A JPS5746335A (en) 1980-09-02 1980-09-02 Optical parts of optical disk information reproducer

Publications (1)

Publication Number Publication Date
JPS5746335A true JPS5746335A (en) 1982-03-16

Family

ID=14822928

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55121910A Pending JPS5746335A (en) 1980-09-02 1980-09-02 Optical parts of optical disk information reproducer

Country Status (1)

Country Link
JP (1) JPS5746335A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60263341A (en) * 1984-06-12 1985-12-26 Toshiba Corp Optical head

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5078341A (en) * 1973-10-01 1975-06-26

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5078341A (en) * 1973-10-01 1975-06-26

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60263341A (en) * 1984-06-12 1985-12-26 Toshiba Corp Optical head

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