GB521154A - Scanning arrangements for transmitting cinematograph films by television - Google Patents
Scanning arrangements for transmitting cinematograph films by televisionInfo
- Publication number
- GB521154A GB521154A GB32388/38A GB3238838A GB521154A GB 521154 A GB521154 A GB 521154A GB 32388/38 A GB32388/38 A GB 32388/38A GB 3238838 A GB3238838 A GB 3238838A GB 521154 A GB521154 A GB 521154A
- Authority
- GB
- United Kingdom
- Prior art keywords
- scanning
- television
- film
- transmitting
- scanned
- 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
- H04N3/36—Scanning of motion picture films, e.g. for telecine
- H04N3/38—Scanning of motion picture films, e.g. for telecine with continuously moving film
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Scanning Arrangements (AREA)
- Microscoopes, Condenser (AREA)
- Details Of Television Scanning (AREA)
Abstract
521,154. Television. STANDARD TELEPHONES & CABLES, Ltd. Nov. 8, 1938, No. 32388. Convention date, Dec. 24, 1937. [Class 40 (iii)] In apparatus for scanning a moving film, the scanning beam moving transversely across the film at the frequency of line scanning (1) has its mean position modified by a movable optical system, such as a mirror, 1, Fig. 1, or (2) is split up into a plurality of beams, one or other of which is made effective, e.g., by a rotating slotted disc 8, Fig. 2. The scanning beam is produced by a cathode ray tube 2. In Fig. 1, if the film 3 moves at 25 pictures per second, the mirror 1 remains in each position 1/50th of a second, one half of the frame being scanned in each position. In Fig. 2, the light beam is split by lenses 3, 4, 5 into two beams displaced by an amount equal to the dimension of the frame in the direction of movement. Two frames are thus scanned but the light from one only is permitted by the slotted disc 8 to reach the cell 6.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR521154X | 1937-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB521154A true GB521154A (en) | 1940-05-14 |
Family
ID=8917119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32388/38A Expired GB521154A (en) | 1937-12-24 | 1938-11-08 | Scanning arrangements for transmitting cinematograph films by television |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB521154A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2622147A (en) * | 1947-09-10 | 1952-12-16 | Emi Ltd | Flying spot scanning of continuously moving film |
| US3647955A (en) * | 1970-05-04 | 1972-03-07 | Comfax Communications Ind Inc | Image transmitter using microfilm positives or negatives as source |
-
1938
- 1938-11-08 GB GB32388/38A patent/GB521154A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2622147A (en) * | 1947-09-10 | 1952-12-16 | Emi Ltd | Flying spot scanning of continuously moving film |
| US3647955A (en) * | 1970-05-04 | 1972-03-07 | Comfax Communications Ind Inc | Image transmitter using microfilm positives or negatives as source |
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