GB383883A - Improvements in or relating to the recording of sound by optical apparatus - Google Patents
Improvements in or relating to the recording of sound by optical apparatusInfo
- Publication number
- GB383883A GB383883A GB1246432A GB1246432A GB383883A GB 383883 A GB383883 A GB 383883A GB 1246432 A GB1246432 A GB 1246432A GB 1246432 A GB1246432 A GB 1246432A GB 383883 A GB383883 A GB 383883A
- Authority
- GB
- United Kingdom
- Prior art keywords
- grid
- sound
- mirror
- lens
- film
- 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
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Abstract
383,883. Optically recording sound. ROBERTS, A. J., 89, Great Russell Street, and PREIST, A. S., 10, Great Earl Street, both in London. April 30, 1932, No. 12464. [Class 40 (ii).] In apparatus for recording sound on a film by a beam reflected from a mirror which is oscillated electromagnetically by the sound, the beam is directed through a grid to the mirror which is arranged to reflect the light back on to the grid the bars of which further reflect it to the film. Monitoring apparatus may be provided, and the whole optical system may be arranged,in a single. tube. As shown, the beam from a point source e, Fig. 1, passes through a lens c<z> and a grid g, formed as a lens with parallel reflecting lines m<2>, Fig. 3, whereby it is focused on a sound oscillated mirror ml which reflects the light back on to the grid. The bars of the grid reflect the light through a cylindrical lens c<1> and condensing lens b on to the film f. A portion of these reflected rays may be directed by an inclined mirror on to a light - sensitive cell connected to monitoring headphones.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1246432A GB383883A (en) | 1932-04-30 | 1932-04-30 | Improvements in or relating to the recording of sound by optical apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1246432A GB383883A (en) | 1932-04-30 | 1932-04-30 | Improvements in or relating to the recording of sound by optical apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB383883A true GB383883A (en) | 1932-11-24 |
Family
ID=10005079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1246432A Expired GB383883A (en) | 1932-04-30 | 1932-04-30 | Improvements in or relating to the recording of sound by optical apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB383883A (en) |
-
1932
- 1932-04-30 GB GB1246432A patent/GB383883A/en not_active Expired
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