FR731447A - Improvements in light valves - Google Patents

Improvements in light valves

Info

Publication number
FR731447A
FR731447A FR731447DA FR731447A FR 731447 A FR731447 A FR 731447A FR 731447D A FR731447D A FR 731447DA FR 731447 A FR731447 A FR 731447A
Authority
FR
France
Prior art keywords
light valves
valves
light
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
Other languages
French (fr)
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.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
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 Electrical Research Products Inc filed Critical Electrical Research Products Inc
Application granted granted Critical
Publication of FR731447A publication Critical patent/FR731447A/en
Expired 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
FR731447D 1931-02-27 1932-02-16 Improvements in light valves Expired FR731447A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US731447XA 1931-02-27 1931-02-27

Publications (1)

Publication Number Publication Date
FR731447A true FR731447A (en) 1932-09-02

Family

ID=22111985

Family Applications (1)

Application Number Title Priority Date Filing Date
FR731447D Expired FR731447A (en) 1931-02-27 1932-02-16 Improvements in light valves

Country Status (1)

Country Link
FR (1) FR731447A (en)

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