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GB365608A - Improvements in the production of sound records on films - Google Patents

Improvements in the production of sound records on films

Info

Publication number
GB365608A
GB365608A GB2208130A GB2208130A GB365608A GB 365608 A GB365608 A GB 365608A GB 2208130 A GB2208130 A GB 2208130A GB 2208130 A GB2208130 A GB 2208130A GB 365608 A GB365608 A GB 365608A
Authority
GB
United Kingdom
Prior art keywords
tube
sound
films
slit
directed
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
GB2208130A
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.)
FIDELITY FILMS Ltd
Original Assignee
FIDELITY FILMS 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 FIDELITY FILMS Ltd filed Critical FIDELITY FILMS Ltd
Priority to GB2208130A priority Critical patent/GB365608A/en
Publication of GB365608A publication Critical patent/GB365608A/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

  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)

Abstract

365,608. Reproducing sound. FIDELITY FILMS, Ltd. and CROWTHER, F. K., Blattner Studios, Boreham Wood, Elstree, Hertfordshire. July 22, 1930, No. 22081. [Class 40 (ii).] In reproducing photographic sound records by light from an electron discharge tube in which the glow extends throughout the length of the tube, the tube is arranged parallel and close to a slit through which and an optical system the beam is directed to the sound record. The Figure shows the tube a<2> close to a slit s beyond which the beam is directed by a lens L on to the sound record s, r. The tube may contain neon, hydrogen or helium to reduce the necessary voltage, and it may then be necessary to use panchromatic film which is sensitive to red or yellow lights.
GB2208130A 1930-07-22 1930-07-22 Improvements in the production of sound records on films Expired GB365608A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2208130A GB365608A (en) 1930-07-22 1930-07-22 Improvements in the production of sound records on films

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2208130A GB365608A (en) 1930-07-22 1930-07-22 Improvements in the production of sound records on films

Publications (1)

Publication Number Publication Date
GB365608A true GB365608A (en) 1932-01-22

Family

ID=10173615

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2208130A Expired GB365608A (en) 1930-07-22 1930-07-22 Improvements in the production of sound records on films

Country Status (1)

Country Link
GB (1) GB365608A (en)

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