GB530629A - Improvements in or relating to kinematograph films including a sound record and to their production - Google Patents
Improvements in or relating to kinematograph films including a sound record and to their productionInfo
- Publication number
- GB530629A GB530629A GB1753139A GB1753139A GB530629A GB 530629 A GB530629 A GB 530629A GB 1753139 A GB1753139 A GB 1753139A GB 1753139 A GB1753139 A GB 1753139A GB 530629 A GB530629 A GB 530629A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sound
- track
- film
- record
- kinematograph
- 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 Recording Or Reproduction (AREA)
Abstract
530,629. Kinematograph films bearing sound records. LEEVERS, F. N. G. June 15, 1939, No. 17531. [Class 98 (ii)] [Also in Group XXXVIII] In recording sound on a kinematograph film by the push-pull method employing two identical tracks in phase opposition, the half tracks 13, 14, Fig. 3, are recorded on opposite sides of the clearance line 15 between the normal sound track area and the picture area, the half track 13 adjacent to the feed perforations being of the same width and occupying the same position as a normal single-track record. The whole of this record may be printed on another film, for push-pull reproduction ; or the half track 13 only may be printed in the usual sound track area of a combined sound and picture film. The record may be made in apparatus in which light from a source 20 is directed by a lens 21 through crossed slits 22, 23 and 24, 25 and lenses 26, 27 on to a mirror 28 which is oscillated in known manner in accordance with the sounds to be recorded, and reflects the light through two inclined glass plates 29, 30 and a cylindrical lens 31 on to the margin of the film 32, the clearance line 15 being defined by a thin vertical mask 33.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1753139A GB530629A (en) | 1939-06-15 | 1939-06-15 | Improvements in or relating to kinematograph films including a sound record and to their production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1753139A GB530629A (en) | 1939-06-15 | 1939-06-15 | Improvements in or relating to kinematograph films including a sound record and to their production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB530629A true GB530629A (en) | 1940-12-17 |
Family
ID=10096793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1753139A Expired GB530629A (en) | 1939-06-15 | 1939-06-15 | Improvements in or relating to kinematograph films including a sound record and to their production |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB530629A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE744596C (en) * | 1941-05-17 | 1944-07-21 | Ig Farbenindustrie Ag | Process for the distortion-free reproduction of sound recordings |
-
1939
- 1939-06-15 GB GB1753139A patent/GB530629A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE744596C (en) * | 1941-05-17 | 1944-07-21 | Ig Farbenindustrie Ag | Process for the distortion-free reproduction of sound recordings |
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