JPS5778647A - Optical recording and reproducing device - Google Patents

Optical recording and reproducing device

Info

Publication number
JPS5778647A
JPS5778647A JP55152114A JP15211480A JPS5778647A JP S5778647 A JPS5778647 A JP S5778647A JP 55152114 A JP55152114 A JP 55152114A JP 15211480 A JP15211480 A JP 15211480A JP S5778647 A JPS5778647 A JP S5778647A
Authority
JP
Japan
Prior art keywords
optical recording
reproducing device
objective lens
reproducing
recording
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
JP55152114A
Other languages
Japanese (ja)
Inventor
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 JP55152114A priority Critical patent/JPS5778647A/en
Publication of JPS5778647A publication Critical patent/JPS5778647A/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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)

Abstract

PURPOSE:To prevent damage of an objective lens, by installing a cover to the objective lens when it is not used, and detaching it and briging it close to a disk when recording and reproducing. CONSTITUTION:When recording and reproducing, a plunger 31 is operated, a protective cover 28 is moved to the right through a coupling body, is opened, and an optical system 25 projects to the upper part of an upper plate 27. According to such a constitution, the objective lens is protected.
JP55152114A 1980-10-31 1980-10-31 Optical recording and reproducing device Pending JPS5778647A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55152114A JPS5778647A (en) 1980-10-31 1980-10-31 Optical recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55152114A JPS5778647A (en) 1980-10-31 1980-10-31 Optical recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS5778647A true JPS5778647A (en) 1982-05-17

Family

ID=15533355

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55152114A Pending JPS5778647A (en) 1980-10-31 1980-10-31 Optical recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS5778647A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02310831A (en) * 1989-05-24 1990-12-26 Nippon Columbia Co Ltd Protecting device for optical pickup
WO1999049461A1 (en) * 1998-03-20 1999-09-30 Aiwa Co., Ltd. Optical pickup dust-proofing structure
JP2003059864A (en) * 2001-08-20 2003-02-28 Disco Abrasive Syst Ltd Dicing device
EP1482492A2 (en) * 2003-05-31 2004-12-01 Daewoo Electronics Corporation Optical storage system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02310831A (en) * 1989-05-24 1990-12-26 Nippon Columbia Co Ltd Protecting device for optical pickup
WO1999049461A1 (en) * 1998-03-20 1999-09-30 Aiwa Co., Ltd. Optical pickup dust-proofing structure
US6442121B1 (en) 1998-03-20 2002-08-27 Aiwa Co., Ltd. Optical pickup dust-proofing structure
JP2003059864A (en) * 2001-08-20 2003-02-28 Disco Abrasive Syst Ltd Dicing device
EP1482492A2 (en) * 2003-05-31 2004-12-01 Daewoo Electronics Corporation Optical storage system
EP1482492A3 (en) * 2003-05-31 2007-06-27 Daewoo Electronics Corporation Optical storage system

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