GB466726A - Improvements in or relating to sound record printing - Google Patents

Improvements in or relating to sound record printing

Info

Publication number
GB466726A
GB466726A GB1288/36A GB128836A GB466726A GB 466726 A GB466726 A GB 466726A GB 1288/36 A GB1288/36 A GB 1288/36A GB 128836 A GB128836 A GB 128836A GB 466726 A GB466726 A GB 466726A
Authority
GB
United Kingdom
Prior art keywords
lens
sound
record
silvered
printing
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
GB1288/36A
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Publication of GB466726A publication Critical patent/GB466726A/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

  • Silver Salt Photography Or Processing Solution Therefor (AREA)

Abstract

466,726. Photographic projection-printing for sound records. RADIO CORPORATION OF AMERICA. Jan. 15, 1936, No. 1288. Convention date, Jan. 19, 1935. [Class 98 (i)] Sound film record printing is effected by passing a light beam in opposite directions through the same area of a negative record of less density than normally required and then focusing the images on the sensitive surface. Light from a source 10 is passed through a condenser 11 and aperture 12 and refracted in a prism 13 and the lower half of a lens 14 on to the sound record 15. An image of the sound track superimposed on the same area of the sound record is obtained by a lens 16 and a lens 17 silvered on its back surface 18. The reflected light beam after passing a second time through the negative record passes through lens 14, light slit 19 and lens 20, 21, and an image of the sound record is focused on the positive film 22. A half silvered mirror may replace the prism 13 and a spherical reflector the silvered lens 17.
GB1288/36A 1935-01-19 1936-01-15 Improvements in or relating to sound record printing Expired GB466726A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US466726XA 1935-01-19 1935-01-19

Publications (1)

Publication Number Publication Date
GB466726A true GB466726A (en) 1937-06-03

Family

ID=21944745

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1288/36A Expired GB466726A (en) 1935-01-19 1936-01-15 Improvements in or relating to sound record printing

Country Status (1)

Country Link
GB (1) GB466726A (en)

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