GB467059A - A photoelectric cell suitable for use in the reproduction of, or recording of sound records by the balanced cell system - Google Patents
A photoelectric cell suitable for use in the reproduction of, or recording of sound records by the balanced cell systemInfo
- Publication number
- GB467059A GB467059A GB25152/36A GB2515236A GB467059A GB 467059 A GB467059 A GB 467059A GB 25152/36 A GB25152/36 A GB 25152/36A GB 2515236 A GB2515236 A GB 2515236A GB 467059 A GB467059 A GB 467059A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cell
- reproduction
- anodes
- recording
- shaped
- 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
Landscapes
- Optical Recording Or Reproduction (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
Abstract
467,059. Photo-electric cells. 'ZEISS IKON AKT.-GES. Sept. 15, 1936, No. 25152. Convention date, Jan. 29. [Class 39 (i)] A photo-electric cell, for use in the reproduction or recording of sound films made by the balanced cell system, has a single cathode and two separated anodes, the envelope being so shaped that light entering one half of the cell cannot reach the other half. As shown in Fig. 3, a kidney-shaped envelope 1 is divided into two parts, each containing an anode 3, 4, by a pinch 6, shaped so as to reflect light on to the correct half of the cathode 2. A grid 5 acts as an electrostatic screen and as a light trap. The cell is mounted inside a sound roller 7 over which the film 8 slides. In the circuit shown in Fig. 3, a battery is connected through a potentiometer 14 and resistances 17, 18 with the anodes 3, 4 and the primary of the transformer 13 is connected with the anodes through condensers 15, 16 so that it is not loaded with the steady current of the cell.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE467059X | 1936-01-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB467059A true GB467059A (en) | 1937-06-10 |
Family
ID=6540640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB25152/36A Expired GB467059A (en) | 1936-01-29 | 1936-09-15 | A photoelectric cell suitable for use in the reproduction of, or recording of sound records by the balanced cell system |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB467059A (en) |
-
1936
- 1936-09-15 GB GB25152/36A patent/GB467059A/en not_active Expired
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