GB793683A - Optical sound film recording system - Google Patents

Optical sound film recording system

Info

Publication number
GB793683A
GB793683A GB29688/56A GB2968856A GB793683A GB 793683 A GB793683 A GB 793683A GB 29688/56 A GB29688/56 A GB 29688/56A GB 2968856 A GB2968856 A GB 2968856A GB 793683 A GB793683 A GB 793683A
Authority
GB
United Kingdom
Prior art keywords
light
film
images
light beams
pair
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
GB29688/56A
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.)
Westrex Corp
Original Assignee
Westrex Corp
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 Westrex Corp filed Critical Westrex Corp
Publication of GB793683A publication Critical patent/GB793683A/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

  • Optical Recording Or Reproduction (AREA)

Abstract

793,683. Optical sound film recording systems. WESTREX CORPORATION. Sept. 28, 1956 [Oct. 4, 1955], No. 29688/56. Class 40 (2). An optical sound film recording system comprising means 7, 8, 9 for forming a pair of laterally offset light beams, means such as a pair of current-responsive ribbons 3, 4 individual to each of said light beams for separately modulating each of the beams in accordance with sounds to be recorded, lens 13 common to the pair of light beams for separately imaging the respective light-modulating means in the plane of the film F in laterally offset relation and optical means, such as a bi-plate or a bi-prism 20, disposed in the path of the light beams for doubling each of the images whereby one of the two images of one of the light-modulating means is adjacent one of the two images of the other light-modulating means within the sound track area of the film and whereby the two remaining images are located away from the sound track area and prevented from .falling on the film.
GB29688/56A 1955-10-04 1956-09-28 Optical sound film recording system Expired GB793683A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US793683XA 1955-10-04 1955-10-04

Publications (1)

Publication Number Publication Date
GB793683A true GB793683A (en) 1958-04-23

Family

ID=22150083

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29688/56A Expired GB793683A (en) 1955-10-04 1956-09-28 Optical sound film recording system

Country Status (1)

Country Link
GB (1) GB793683A (en)

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