GB704415A - Finished lenticulated film and process for producing the photographic recording thereon - Google Patents
Finished lenticulated film and process for producing the photographic recording thereonInfo
- Publication number
- GB704415A GB704415A GB26347/51A GB2634751A GB704415A GB 704415 A GB704415 A GB 704415A GB 26347/51 A GB26347/51 A GB 26347/51A GB 2634751 A GB2634751 A GB 2634751A GB 704415 A GB704415 A GB 704415A
- Authority
- GB
- United Kingdom
- Prior art keywords
- film
- records
- lenticulated
- separate
- filter
- 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
- G03C7/14—Additive processes using lenticular screens; Materials therefor; Preparing or processing such materials
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Stereoscopic And Panoramic Photography (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
704,415. Lenticular film records. GRETENER, E. Nov. 9, 1951 [Nov. 10, 1950; July 14, 1951], No. 26347/51. Class 98(2) Finished lenticulated photographic film including at least two interlaced separate records is produced by exposing for each record, through a light filter of regularly varied transparency and through the lenticular raster and the film, a photographicallysensitive layer of high gamma whereby the record made behind each lenticule comprises a transparent area on an opaque ground, the size of the transparent area being proportional to the mean brightness of the corresponding portion of the original. The filter may increase in density uniformly from the edges towards the centre so that the transparent area is proportional to the square of the orightness of the original, or it may be in the form of strips of fixed width which increase in density only along their length so that the transparent area is linearly proportional to the brightness of the original. To ensure that the separate records do not overlap, the filters may have transparent strips along their upper and lower margins so that the corresponding areas of the film are opaque. As an alternative, transparent rods illuminated from their end faces may be disposed between the filters to produce these record-separating strips. As described, the invention is applied to producing coloured motion picture films intended for projection, which may be of the doubly lenticulated kind described and claimed in Specification 682,853, by printing from colour separation records. The records 35 may be printed simultaneously by projection each image being projected to the same film frame along the appropriate directed to produce separate interlaced records by a pair of spaced lenses 39 between which is disposed the light filter 41. The film may have either spherical or cylindrical lenticulations. In the latter case an auxiliary perforated strip 102 having lenticulations crossing those of the film 100 at 90 degrees may be employed during recording and the film and strip may be held in close contact by exhausting air from between them by ducts in the stationary member of the picture gate in register with the film perforations connected to a pump. In the case of contact printing, the light source and filter may be successively positioned in their appropriate positions so as to print the component records in turn, while if three components are all on a single film, the light source filter and original may be displaced after each exposure and the recording film after only every third exposure by automatic means. Alternatively separate sources and filters may be used for printing each component whether these are on a single or separate films. In the case of cylindrically lenticulated films, a strip similar to the strip 100 may be inserted between the negative and the recording film, but preferably the image-bearing face of the negative is itself cylindrically lenticulated after it has been exposed. Stereoscopic and colour stereoscopic films may be produced by the same methods.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH704415X | 1950-11-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB704415A true GB704415A (en) | 1954-02-24 |
Family
ID=4530279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26347/51A Expired GB704415A (en) | 1950-11-10 | 1951-11-09 | Finished lenticulated film and process for producing the photographic recording thereon |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE901258C (en) |
GB (1) | GB704415A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111340888B (en) * | 2019-12-23 | 2020-10-23 | 首都师范大学 | Light field camera calibration method and system without white image |
-
1951
- 1951-11-09 GB GB26347/51A patent/GB704415A/en not_active Expired
- 1951-11-10 DE DEG7406A patent/DE901258C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE901258C (en) | 1954-01-07 |
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