JPS58211339A - 光方式情報読取装置 - Google Patents

光方式情報読取装置

Info

Publication number
JPS58211339A
JPS58211339A JP57094508A JP9450882A JPS58211339A JP S58211339 A JPS58211339 A JP S58211339A JP 57094508 A JP57094508 A JP 57094508A JP 9450882 A JP9450882 A JP 9450882A JP S58211339 A JPS58211339 A JP S58211339A
Authority
JP
Japan
Prior art keywords
prism
light
polarizing
case
optical path
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
JP57094508A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0313651B2 (https=
Inventor
Masayuki Ito
正之 伊藤
Hiroyuki Nakamura
裕行 中村
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 JP57094508A priority Critical patent/JPS58211339A/ja
Publication of JPS58211339A publication Critical patent/JPS58211339A/ja
Publication of JPH0313651B2 publication Critical patent/JPH0313651B2/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)
JP57094508A 1982-06-01 1982-06-01 光方式情報読取装置 Granted JPS58211339A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57094508A JPS58211339A (ja) 1982-06-01 1982-06-01 光方式情報読取装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57094508A JPS58211339A (ja) 1982-06-01 1982-06-01 光方式情報読取装置

Publications (2)

Publication Number Publication Date
JPS58211339A true JPS58211339A (ja) 1983-12-08
JPH0313651B2 JPH0313651B2 (https=) 1991-02-25

Family

ID=14112254

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57094508A Granted JPS58211339A (ja) 1982-06-01 1982-06-01 光方式情報読取装置

Country Status (1)

Country Link
JP (1) JPS58211339A (https=)

Also Published As

Publication number Publication date
JPH0313651B2 (https=) 1991-02-25

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