JPS6259371B2 - - Google Patents

Info

Publication number
JPS6259371B2
JPS6259371B2 JP55018112A JP1811280A JPS6259371B2 JP S6259371 B2 JPS6259371 B2 JP S6259371B2 JP 55018112 A JP55018112 A JP 55018112A JP 1811280 A JP1811280 A JP 1811280A JP S6259371 B2 JPS6259371 B2 JP S6259371B2
Authority
JP
Japan
Prior art keywords
light
recording
movable mirror
reflected
shielding 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.)
Expired
Application number
JP55018112A
Other languages
English (en)
Japanese (ja)
Other versions
JPS56114136A (en
Inventor
Tooru Nakamura
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 JP1811280A priority Critical patent/JPS56114136A/ja
Publication of JPS56114136A publication Critical patent/JPS56114136A/ja
Publication of JPS6259371B2 publication Critical patent/JPS6259371B2/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
    • G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
JP1811280A 1980-02-15 1980-02-15 Optical recording and reproducing device Granted JPS56114136A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1811280A JPS56114136A (en) 1980-02-15 1980-02-15 Optical recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1811280A JPS56114136A (en) 1980-02-15 1980-02-15 Optical recording and reproducing device

Publications (2)

Publication Number Publication Date
JPS56114136A JPS56114136A (en) 1981-09-08
JPS6259371B2 true JPS6259371B2 (enrdf_load_stackoverflow) 1987-12-10

Family

ID=11962522

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1811280A Granted JPS56114136A (en) 1980-02-15 1980-02-15 Optical recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS56114136A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0238572U (enrdf_load_stackoverflow) * 1988-09-06 1990-03-14

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01211333A (ja) * 1988-02-19 1989-08-24 Matsushita Electric Ind Co Ltd 光学ピックアップ
US5486944A (en) * 1989-10-30 1996-01-23 Symbol Technologies, Inc. Scanner module for symbol scanning system
JP2795218B2 (ja) * 1995-05-19 1998-09-10 日本電気株式会社 光学式記録情報再生装置
JPH08329516A (ja) * 1995-06-05 1996-12-13 Nec Corp 光ヘッド装置
KR100200873B1 (ko) * 1996-01-11 1999-06-15 윤종용 광 픽업 장치

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0238572U (enrdf_load_stackoverflow) * 1988-09-06 1990-03-14

Also Published As

Publication number Publication date
JPS56114136A (en) 1981-09-08

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