FR828269A - Optics for photographic sound recording - Google Patents

Optics for photographic sound recording

Info

Publication number
FR828269A
FR828269A FR828269DA FR828269A FR 828269 A FR828269 A FR 828269A FR 828269D A FR828269D A FR 828269DA FR 828269 A FR828269 A FR 828269A
Authority
FR
France
Prior art keywords
optics
sound recording
photographic sound
photographic
recording
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.)
Klangfilm GmbH
Original Assignee
Klangfilm GmbH
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 Klangfilm GmbH filed Critical Klangfilm GmbH
Application granted granted Critical
Publication of FR828269A publication Critical patent/FR828269A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
FR828269D 1936-11-04 1937-10-25 Optics for photographic sound recording Expired FR828269A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE828269X 1936-11-04

Publications (1)

Publication Number Publication Date
FR828269A true FR828269A (en) 1938-05-13

Family

ID=6748248

Family Applications (1)

Application Number Title Priority Date Filing Date
FR828269D Expired FR828269A (en) 1936-11-04 1937-10-25 Optics for photographic sound recording

Country Status (1)

Country Link
FR (1) FR828269A (en)

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