GB438448A - Improvements in or relating to the reproduction of sound recorded on lenticular colour picture films - Google Patents

Improvements in or relating to the reproduction of sound recorded on lenticular colour picture films

Info

Publication number
GB438448A
GB438448A GB15066/34A GB1506634A GB438448A GB 438448 A GB438448 A GB 438448A GB 15066/34 A GB15066/34 A GB 15066/34A GB 1506634 A GB1506634 A GB 1506634A GB 438448 A GB438448 A GB 438448A
Authority
GB
United Kingdom
Prior art keywords
lenticular
reproduction
sound
film
colour picture
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
GB15066/34A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Publication of GB438448A publication Critical patent/GB438448A/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

Abstract

438,448. Lenticular films. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on- Main, Germany. May 18, 1934, No. 15066. Convention date, June 3, 1933. [Class 98 (ii)] [See also Group XXXVIII] In the reproduction of sound recorded as a variable-density track on lenticular colour picture films having the lenticulations disposed in a direction parallel to the striations of the sound track the speed of travel of the film is so chosen, or the breadth of the lenticular elements is such, that the frequency of the modulation of the light beam caused by the lenticulations is above the limit of audibility (i.e. exceeds 10,000 per second), and therefore there is no interference with the sound reproduction. With a normal speed of travel of the film, the breadth of each lenticular element is less than 45Á. The sound-reproducing light beam is incident on the emulsion side of the film.
GB15066/34A 1933-06-03 1934-05-18 Improvements in or relating to the reproduction of sound recorded on lenticular colour picture films Expired GB438448A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE438448X 1933-06-03

Publications (1)

Publication Number Publication Date
GB438448A true GB438448A (en) 1935-11-18

Family

ID=6507169

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15066/34A Expired GB438448A (en) 1933-06-03 1934-05-18 Improvements in or relating to the reproduction of sound recorded on lenticular colour picture films

Country Status (1)

Country Link
GB (1) GB438448A (en)

Similar Documents

Publication Publication Date Title
GB1032893A (en) Stereoscopic pictures and methods for their production
GB438448A (en) Improvements in or relating to the reproduction of sound recorded on lenticular colour picture films
GB389434A (en) Improvements in and relating to cinematograph sound films
GB393901A (en) Improved cinematograph picture and sound film
GB469580A (en) Improvements in or relating to photographic sound recording
GB449618A (en) Improved cinematographic picture and sound film
GB491956A (en) Improvements in or relating to optical sound recording
GB501043A (en) Improvements in or relating to sound recording
GB435808A (en) Improved method of printing a sound record on a lenticular picture film
GB378307A (en) Process of printing sound and picture films
GB495033A (en) Improvements relating to the reproduction of sound films
GB365107A (en) Improvements in or relating to the simultaneous reproduction of sound in cinematography
GB501042A (en) Improvements in or relating to sound recording
GB441110A (en) Improvements in and relating to apparatus for the production and reproduction of talking motion pictures
GB321624A (en) Improvements relating to the synchronous reproduction of picture films and disk sound records
GB417765A (en) Improvements in or relating to combined color-picture and sound record films
GB457610A (en) Improvements in or relating to sound film recording
GB476460A (en) Improvements in or relating to sound and colour cinematograph films
GB445531A (en) Improvements in the production of photographic sound records
GB545465A (en) Improvements in or relating to the recording of alternating current impulses
GB486517A (en) Improvements in the manufacture of cinematograph films having a multi-colour picturerecord and a sound record
CA351096A (en) Sound film recording system
GB315842A (en) Improvements in combined sound and moving picture films
GB300592A (en) Improvements in or relating to talking films
CA313763A (en) Motion picture and sound record film