FR776892A - Dispositif de transmission optique des sons - Google Patents

Dispositif de transmission optique des sons

Info

Publication number
FR776892A
FR776892A FR776892DA FR776892A FR 776892 A FR776892 A FR 776892A FR 776892D A FR776892D A FR 776892DA FR 776892 A FR776892 A FR 776892A
Authority
FR
France
Prior art keywords
transmission device
sound transmission
optical sound
optical
transmission
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
English (en)
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.)
ZEISS CARL SOC
Original Assignee
ZEISS CARL SOC
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 ZEISS CARL SOC filed Critical ZEISS CARL SOC
Application granted granted Critical
Publication of FR776892A publication Critical patent/FR776892A/fr
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
FR776892D 1933-08-17 1934-08-07 Dispositif de transmission optique des sons Expired FR776892A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE776892X 1933-08-17

Publications (1)

Publication Number Publication Date
FR776892A true FR776892A (fr) 1935-02-06

Family

ID=6686638

Family Applications (1)

Application Number Title Priority Date Filing Date
FR776892D Expired FR776892A (fr) 1933-08-17 1934-08-07 Dispositif de transmission optique des sons

Country Status (1)

Country Link
FR (1) FR776892A (fr)

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