GB492469A - Improvements in or relating to light modulating devices - Google Patents
Improvements in or relating to light modulating devicesInfo
- Publication number
- GB492469A GB492469A GB1609837A GB1609837A GB492469A GB 492469 A GB492469 A GB 492469A GB 1609837 A GB1609837 A GB 1609837A GB 1609837 A GB1609837 A GB 1609837A GB 492469 A GB492469 A GB 492469A
- Authority
- GB
- United Kingdom
- Prior art keywords
- crystal
- liquid
- cell
- relating
- light modulating
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/66—Transforming electric information into light information
Abstract
492,469. Modulating light ; piezoelectric crystal mountings. SCOPHONY, Ltd., JEFFREE, J. H., and SIEGER, J. June 10, 1937, No. 16098. Drawings to Specification. [Classes 40 (iii) and 40 (v)] In a light-modulating cell comprising a liquid in which waves of supersonic frequency are generated by a piezo-electric crystal assembly, as described in Specification 439,236, the crystal closes an aperture in a metallic end wall of the cell, the end wall serving as one electrode for the crystal. The inner surface of the crystal may be in direct contact with the liquid of the cell or with a suitable intermediate layer between the liquid and the crystal. The crystal may be coated on one or both sides with a thin layer of conducting material such as aluminium or silver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1609837A GB492469A (en) | 1937-06-10 | 1937-06-10 | Improvements in or relating to light modulating devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1609837A GB492469A (en) | 1937-06-10 | 1937-06-10 | Improvements in or relating to light modulating devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB492469A true GB492469A (en) | 1938-09-21 |
Family
ID=10071151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1609837A Expired GB492469A (en) | 1937-06-10 | 1937-06-10 | Improvements in or relating to light modulating devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB492469A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3035491A (en) * | 1957-08-02 | 1962-05-22 | Fairchild Camera Instr Co | Ultrasonic light modulator cell assembly |
-
1937
- 1937-06-10 GB GB1609837A patent/GB492469A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3035491A (en) * | 1957-08-02 | 1962-05-22 | Fairchild Camera Instr Co | Ultrasonic light modulator cell assembly |
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