GB366643A - Improvements in or relating to optical sound reproducing apparatus - Google Patents
Improvements in or relating to optical sound reproducing apparatusInfo
- Publication number
- GB366643A GB366643A GB3647930A GB3647930A GB366643A GB 366643 A GB366643 A GB 366643A GB 3647930 A GB3647930 A GB 3647930A GB 3647930 A GB3647930 A GB 3647930A GB 366643 A GB366643 A GB 366643A
- Authority
- GB
- United Kingdom
- Prior art keywords
- opening
- reproducing apparatus
- optical sound
- slides
- relating
- 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
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 Couplings Of Light Guides (AREA)
Abstract
366,643. Optical sound-reproducing apparatus. SOKAL, S., 1, Great James Street, Bedford Row, London.-(Nitzsche Akt.-Ges. ; 1, Karlstrasse, Leipsic, Germany.) Dec. 3, 1930, No. 36479. [Class 40 (ii).] Optical sound-reproducing apparatus comprises a fixed guide surface 5 for the sound film, an opening 6 therein for the passage of light on to a selenium cell or photo-electric cell 7, and two slides 20 mounted behind the opening so as to be adjustable independently of one another to allow any desired part of the opening to be covered or left free. The slides may be in the form of levers 20 pivoted on opposite sides of the opening 6. The end of each slide is disposed between a spring 27 and a pin 26, and is adjustable by a set-screw 25. The light passes from a source 1 through a lens system 2 which includes a screen 3.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3647930A GB366643A (en) | 1930-12-03 | 1930-12-03 | Improvements in or relating to optical sound reproducing apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3647930A GB366643A (en) | 1930-12-03 | 1930-12-03 | Improvements in or relating to optical sound reproducing apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB366643A true GB366643A (en) | 1932-02-11 |
Family
ID=10388531
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3647930A Expired GB366643A (en) | 1930-12-03 | 1930-12-03 | Improvements in or relating to optical sound reproducing apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB366643A (en) |
-
1930
- 1930-12-03 GB GB3647930A patent/GB366643A/en not_active Expired
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