GB471066A - An improved method of imparting angular motion to a beam of light for scanning purposes for television and the like - Google Patents
An improved method of imparting angular motion to a beam of light for scanning purposes for television and the likeInfo
- Publication number
- GB471066A GB471066A GB568636A GB568636A GB471066A GB 471066 A GB471066 A GB 471066A GB 568636 A GB568636 A GB 568636A GB 568636 A GB568636 A GB 568636A GB 471066 A GB471066 A GB 471066A
- Authority
- GB
- United Kingdom
- Prior art keywords
- television
- light
- beams
- improved method
- supersonic
- 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
- H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
- H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Lasers (AREA)
Abstract
471,066. Television. SCOPHONY, Ltd., and WIKKENHAUSER, G. Feb. 26, 1936, No. 5686. [Class 40 (iii)] A beam of light is passed through a medium 2 in which are set up supersonic mechanical waves ; the medium acts as a diffraction grating and the emergent light consists of a central beam, focused at 6, flanked by beams, focused at 7, 8, corresponding to spectra ; the beam 8 will normally be very weak and may be neglected ; a shutter 9 cuts off the central beam and those beams on one side of it ; the frequency of the supersonic waves is varied to vary the deviation of the side beams so that the beam 7 executes a linear movement, which is used as one component of scanning. The supersonic waves are generated by a piezo-electric crystal 3 and their frequency is varied in accordance with a saw-tooth wave form. The oscillating beam may be passed through a train of prisms to increase its angular deviation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB568636A GB471066A (en) | 1936-02-26 | 1936-02-26 | An improved method of imparting angular motion to a beam of light for scanning purposes for television and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB568636A GB471066A (en) | 1936-02-26 | 1936-02-26 | An improved method of imparting angular motion to a beam of light for scanning purposes for television and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB471066A true GB471066A (en) | 1937-08-26 |
Family
ID=9800727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB568636A Expired GB471066A (en) | 1936-02-26 | 1936-02-26 | An improved method of imparting angular motion to a beam of light for scanning purposes for television and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB471066A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5136426A (en) * | 1991-02-27 | 1992-08-04 | Advanced Laser Projection, Inc. | Light projection apparatus |
-
1936
- 1936-02-26 GB GB568636A patent/GB471066A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5136426A (en) * | 1991-02-27 | 1992-08-04 | Advanced Laser Projection, Inc. | Light projection apparatus |
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