GB335680A - Improvements relating to recording apparatus for sound-films - Google Patents

Improvements relating to recording apparatus for sound-films

Info

Publication number
GB335680A
GB335680A GB23930/29A GB2393029A GB335680A GB 335680 A GB335680 A GB 335680A GB 23930/29 A GB23930/29 A GB 23930/29A GB 2393029 A GB2393029 A GB 2393029A GB 335680 A GB335680 A GB 335680A
Authority
GB
United Kingdom
Prior art keywords
sound
width
observed
film
slit
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
GB23930/29A
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.)
SELENOPHON LIECHT und TONBILDG
Original Assignee
SELENOPHON LIECHT und TONBILDG
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 SELENOPHON LIECHT und TONBILDG filed Critical SELENOPHON LIECHT und TONBILDG
Publication of GB335680A publication Critical patent/GB335680A/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

335,680. Selenophon Licht-und Tonbildges, (formerly Selen Studien-Erzeugungsu. Vertwergtungs Ges.). Oct. 25, 1928, [Convention date]. Optical apparatus.-In optically recording sound on a translucent record provision is made for monitoring whereby reproduction is effected from the sound-influenced beam passing through the film and the width of the slit employed can be observed. The sound-influenced beam passing through the gate 1 to make the record on the film 2, passes forward and is focussed by a lens 3 on a cell 4 for direct reproduction by a telephone connected in circuit therewith. The width of the slit can be observed' by inserting a prism 7 or a mirror in the beam. and a scale can be embodied to measure the width.
GB23930/29A 1928-10-25 1929-08-03 Improvements relating to recording apparatus for sound-films Expired GB335680A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT335680X 1928-10-25

Publications (1)

Publication Number Publication Date
GB335680A true GB335680A (en) 1930-10-02

Family

ID=3671941

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23930/29A Expired GB335680A (en) 1928-10-25 1929-08-03 Improvements relating to recording apparatus for sound-films

Country Status (1)

Country Link
GB (1) GB335680A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE745074C (en) * 1935-09-13 1944-02-25 Klangfilm G M B H Observation device in sound recording devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE745074C (en) * 1935-09-13 1944-02-25 Klangfilm G M B H Observation device in sound recording devices

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