JPS57120246A - Electrostatic recording and reproducing system - Google Patents

Electrostatic recording and reproducing system

Info

Publication number
JPS57120246A
JPS57120246A JP56005172A JP517281A JPS57120246A JP S57120246 A JPS57120246 A JP S57120246A JP 56005172 A JP56005172 A JP 56005172A JP 517281 A JP517281 A JP 517281A JP S57120246 A JPS57120246 A JP S57120246A
Authority
JP
Japan
Prior art keywords
polarization
recording medium
reproduction
plane
laser beam
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
JP56005172A
Other languages
Japanese (ja)
Inventor
Kenichi Sawazaki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56005172A priority Critical patent/JPS57120246A/en
Publication of JPS57120246A publication Critical patent/JPS57120246A/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
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/08—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by electric charge or by variation of electric resistance or capacitance

Landscapes

  • Fax Reproducing Arrangements (AREA)

Abstract

PURPOSE:To obtain a reproduced signal with an excellent S/N ratio by utilizing a change in plane of polarization with the polarization of a dielectric with regard to the reflected light of laser light with which an electrostatic recording medium is irradiated. CONSTITUTION:On a dielectrostatic recording medium 21, a signal is recorded in the form of variation in polarization. The recording surface is irradiated with laser beam 22 processed by direct polarization 23. Its reflected light passed through a half-mirror 24 is extracted by a photodetector 26 through a polarizer 25. Laser beam incident to a recording medium 21 changes in plane of polarization with the polarization of the recording medium 21, so a signal output which corresponds to the change in plane of polarization is obtained. Since reproduction is performed by using a fine beam of laser beam, high-density recording and reproduction are enabled and the reproduction from the reocrding medium is performed without contacting, so no static electricity due to friction is generated, so that a reproduced signal has an excellent S/N ratio.
JP56005172A 1981-01-19 1981-01-19 Electrostatic recording and reproducing system Pending JPS57120246A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56005172A JPS57120246A (en) 1981-01-19 1981-01-19 Electrostatic recording and reproducing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56005172A JPS57120246A (en) 1981-01-19 1981-01-19 Electrostatic recording and reproducing system

Publications (1)

Publication Number Publication Date
JPS57120246A true JPS57120246A (en) 1982-07-27

Family

ID=11603811

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56005172A Pending JPS57120246A (en) 1981-01-19 1981-01-19 Electrostatic recording and reproducing system

Country Status (1)

Country Link
JP (1) JPS57120246A (en)

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