GB344904A - Improvements relating to the photographic recording of sound waves - Google Patents

Improvements relating to the photographic recording of sound waves

Info

Publication number
GB344904A
GB344904A GB35006/29A GB3500629A GB344904A GB 344904 A GB344904 A GB 344904A GB 35006/29 A GB35006/29 A GB 35006/29A GB 3500629 A GB3500629 A GB 3500629A GB 344904 A GB344904 A GB 344904A
Authority
GB
United Kingdom
Prior art keywords
sound
sound waves
record
vibrated
shutter
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
GB35006/29A
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.)
KUCHENMEISTER S INTERNATIONALE
Original Assignee
KUCHENMEISTER S INTERNATIONALE
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 KUCHENMEISTER S INTERNATIONALE filed Critical KUCHENMEISTER S INTERNATIONALE
Publication of GB344904A publication Critical patent/GB344904A/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

Landscapes

  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

344,904. Optical sound records ; recording sound. NAAMLOOZE VENNOOTSCHAP KUCHENMEISTER'S INTERNATIONALE MAATSCHAPPIJ VOOR SPREKENDE FILMS, AMSTERDAMBERLIN, 43, Mauerstrasse, Berlin. Nov. 15, 1929, No. 35006. Convention date, Nov. 29, 1928. [Class 40 (ii).] An optical sound record varying in density and contour in accordance with the sounds recorded is formed by means of a shutter 9 which consists of an opaque part and a part a, b, c of varying density and is vibrated under the action of the sound waves. The part a, b, c may be bounded by straight lines or curves and may be in the form of a triangle which is of decreasing transparency from the base to the apex. The shutter is vibrated longitudinally of, and parallel to, the record film. The Specification as open to inspection under Sect. 91 (3) (a) describes also the production of a record of the above type by arranging for the light from a source, which is controlled by the sound waves, to be either reflected on to the sound film by means, of an oscillograph mirror vibrating in accordance with the sound waves or controlled by a screen 9, Fig. 2 (cancelled), which is vibrated by the sound waves. This subjectmatter does not appear in the Specification as accepted.
GB35006/29A 1928-11-29 1929-11-15 Improvements relating to the photographic recording of sound waves Expired GB344904A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE344904X 1928-11-29

Publications (1)

Publication Number Publication Date
GB344904A true GB344904A (en) 1931-03-16

Family

ID=6254270

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35006/29A Expired GB344904A (en) 1928-11-29 1929-11-15 Improvements relating to the photographic recording of sound waves

Country Status (1)

Country Link
GB (1) GB344904A (en)

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