GB417753A - Improvements in recording sound photographically - Google Patents
Improvements in recording sound photographicallyInfo
- Publication number
- GB417753A GB417753A GB2967/34A GB296734A GB417753A GB 417753 A GB417753 A GB 417753A GB 2967/34 A GB2967/34 A GB 2967/34A GB 296734 A GB296734 A GB 296734A GB 417753 A GB417753 A GB 417753A
- Authority
- GB
- United Kingdom
- Prior art keywords
- layer
- halation
- silver halide
- halide emulsion
- jan
- 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
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/12—Cinematrographic processes of taking pictures or printing
- G03C5/14—Cinematrographic processes of taking pictures or printing combined with sound-recording
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
417,753. Recording sound. I. G. FARBENINDUSTRIE AKT.-GES., Frankforton-Main, Germany. Jan. 29, 1934, No. 2967. Convention date, Jan. 28, 1933. [Class 40 (ii).] Sound is recorded by means of a source of light modulated in accordance with the sounds to be recorded on a film having means for preventing or minimising halation, and the film is developed according to the reversal method. The halation effects produced by diffusion may be reduced by using a lightsensitive material provided with a particularly fine-grained silver halide emulsion layer, or with a silver halide emulsion layer which contains a filter dye, or with both such layers. Dyes which are simultaneously sensitizers may be employed with the silver halide emulsion. The halation effects caused by reflection may also be prevented by means of an anti-halation layer arranged as a backing layer or as an intermediate layer between the emulsion layer and the support, and such a layer may consist of finely sub-divided glassmaker's soap, colloidal silver, or a suitable red dye which is soluble in the photographic treating baths. The antihalation layer may be applied on the lightsensitive layer when the latter is to be exposed through the support.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE417753X | 1933-01-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB417753A true GB417753A (en) | 1934-10-11 |
Family
ID=6448754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2967/34A Expired GB417753A (en) | 1933-01-28 | 1934-01-29 | Improvements in recording sound photographically |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB417753A (en) |
-
1934
- 1934-01-29 GB GB2967/34A patent/GB417753A/en not_active Expired
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