GB388084A - Improvements in and relating to apparatus for reproducing sound from optical sound records - Google Patents
Improvements in and relating to apparatus for reproducing sound from optical sound recordsInfo
- Publication number
- GB388084A GB388084A GB2103531A GB2103531A GB388084A GB 388084 A GB388084 A GB 388084A GB 2103531 A GB2103531 A GB 2103531A GB 2103531 A GB2103531 A GB 2103531A GB 388084 A GB388084 A GB 388084A
- Authority
- GB
- United Kingdom
- Prior art keywords
- light
- reflector
- record
- gate
- sound
- 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
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Abstract
388,084. Reproducing optical soundrecords. RYLAND, H. S., 97, Bushey Green, Catford, London, and CHAMPION, A., 13, Rochester Avenue, Bromley, Kent. July 23, 1931, No. 21035. [Class 40 (ii).] In apparatus for reproducing sound from translucent or opaque photographic records, the light source and that part of the record in the gate are arranged at conjugate foci of a reflector by which light from the source is reflected on to the record, and the light from the record is directed by a high aperture lens system on to a light-sensitive cell in front of which a slit may be provided. Fig. 4 shows an arrangement in which light from a source d is reflected by a reflector b and deflected by a prism l on to the film e passing through a gate, the light and gate being at equivalent conjugate foci of the reflector. The beam passing the film is directed by a .high aperture lens system c on to a slit i provided between two plates j in front of a light-sensitive cell/. Fig. 5 shows the arrangement when the record is opaque and operates to reflect the beam through the lens system to the cell. The reflector may be elliptical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2103531A GB388084A (en) | 1931-07-23 | 1931-07-23 | Improvements in and relating to apparatus for reproducing sound from optical sound records |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2103531A GB388084A (en) | 1931-07-23 | 1931-07-23 | Improvements in and relating to apparatus for reproducing sound from optical sound records |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB388084A true GB388084A (en) | 1933-02-23 |
Family
ID=10156065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2103531A Expired GB388084A (en) | 1931-07-23 | 1931-07-23 | Improvements in and relating to apparatus for reproducing sound from optical sound records |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB388084A (en) |
-
1931
- 1931-07-23 GB GB2103531A patent/GB388084A/en not_active Expired
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