GB405821A - Television system - Google Patents
Television systemInfo
- Publication number
- GB405821A GB405821A GB828933A GB828933A GB405821A GB 405821 A GB405821 A GB 405821A GB 828933 A GB828933 A GB 828933A GB 828933 A GB828933 A GB 828933A GB 405821 A GB405821 A GB 405821A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lens
- mirrors
- screen
- nodal point
- point
- 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
- H04N3/02—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only
- H04N3/08—Scanning details of television systems; Combination thereof with generation of supply voltages by optical-mechanical means only having a moving reflector
Abstract
405,821. Television. PECK, W. H., 5, Forrest Lane, Scarsdale, New York, U.S.A. March 18, 1933, No. 8289. [Class 40 (iii).] In a television receiver in which a fluctuating lightsource I is optically projected on a screen S by a lens L2, the lens is anastigmatic and aplanatic so that a flat and undistorted image of objects in the plane at I is produced on the screen. The lens has an external nodal point N between itself and the light-source I, and the scanning-mirror or mirrors is or are located at or near to this point. Alternatively the lens system may be compounded of two lenses located one on each side of the nodal point and mirrors (Fig. 4, not shown).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB828933A GB405821A (en) | 1933-03-18 | 1933-03-18 | Television system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB828933A GB405821A (en) | 1933-03-18 | 1933-03-18 | Television system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB405821A true GB405821A (en) | 1934-02-15 |
Family
ID=9849659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB828933A Expired GB405821A (en) | 1933-03-18 | 1933-03-18 | Television system |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB405821A (en) |
-
1933
- 1933-03-18 GB GB828933A patent/GB405821A/en not_active Expired
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