GB1450488A - Light districution unit - Google Patents
Light districution unitInfo
- Publication number
- GB1450488A GB1450488A GB5488974A GB5488974A GB1450488A GB 1450488 A GB1450488 A GB 1450488A GB 5488974 A GB5488974 A GB 5488974A GB 5488974 A GB5488974 A GB 5488974A GB 1450488 A GB1450488 A GB 1450488A
- Authority
- GB
- United Kingdom
- Prior art keywords
- light
- printing
- rods
- box
- 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
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B27/00—Photographic printing apparatus
- G03B27/02—Exposure apparatus for contact printing
- G03B27/14—Details
- G03B27/16—Illumination arrangements, e.g. positioning of lamps, positioning of reflectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection-Type Copiers In General (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
Abstract
1450488 Photographic printing apparatus GROUP COLOR (W A) PTY Ltd 19 Dec 1974 [20 Dec 1973] 54889/74 Heading G2A A light box, which may form part of contact printing, enlarging and like apparatus, comprises a light source with a continously variable light filter, a matrix of light-transmitting rods or bundles of optical fibres 1 positioned to receive lighttransmitted by the filter and to transmit the light to the printing surface, and means mounted in association with each rod or bundle of fibres to control the amount of light transmitted therethrough. The box is used for shading negatives during printing, particularly colour negatives in aerial photography. As shown in Fig. 2, the apparatus includes a number of light-transmitting rods 11 made of e.g. transparent plastics material, which converge and come together in a spherical surface to receive light from a source (not shown), comprising a filter, e.g. a dichroic filter. The upper ends of rods 11 are opposite the lower ends of similar rods 12, and a shutter 14 (see also Fig. 3, not shown) is situated between each pair of rods 11, 12. Each shutter 14 is pivoted to cut off more or less of the light passing between the corresponding rods 11, 12. Shutters 14 are adjustable through linkage by discs 15 at the side of the box. The positions of disc 15 and the degree of filtering are quoted so that they can be reproduced at need. Each rod may be replaced by a bundle of optical fibres. In a printing unit, a length of roll film may pass over the light box for printing frame by frame. Light tight storage boxes (23), Figs. 4, 5, (not shown), may be provided for light-sensitive material. Paper for printing may be carried on an inverted roll easel (24) supported in a frame (25) slidable on tracks (26). The position of shutters 14 may be controlled electronically, and the filtering and shading information may be recorded on magnetic tape.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU607373 | 1973-12-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1450488A true GB1450488A (en) | 1976-09-22 |
Family
ID=3696573
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5488974A Expired GB1450488A (en) | 1973-12-20 | 1974-12-19 | Light districution unit |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS5097346A (en) |
GB (1) | GB1450488A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0664482A1 (en) * | 1990-11-29 | 1995-07-26 | Eastman Kodak Company | Apparatus and method for precisely exposing radiation sensitive materials |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03217350A (en) * | 1990-01-24 | 1991-09-25 | Hino Motors Ltd | Interior lighting system for vehicle |
JP2006258701A (en) * | 2005-03-18 | 2006-09-28 | Nissan Motor Co Ltd | Display device for vehicle |
JP5143708B2 (en) * | 2008-11-28 | 2013-02-13 | カルソニックカンセイ株式会社 | Vehicle display device |
-
1974
- 1974-12-19 GB GB5488974A patent/GB1450488A/en not_active Expired
- 1974-12-20 JP JP14579774A patent/JPS5097346A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0664482A1 (en) * | 1990-11-29 | 1995-07-26 | Eastman Kodak Company | Apparatus and method for precisely exposing radiation sensitive materials |
Also Published As
Publication number | Publication date |
---|---|
JPS5097346A (en) | 1975-08-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US1848814A (en) | Image-forming | |
DE3817138A1 (en) | PHOTO PICTURE PLAYER, DEVICE AND METHOD FOR PRODUCING IMAGE PART | |
JPS5622418A (en) | Camera for recording image having optically controlled constrast | |
GB1204873A (en) | Improvements in processes for recording, records of, and devices for the reproduction of moving objects | |
US2517246A (en) | Method of producing and exhibiting stereoscopic motion pictures in color | |
US3267826A (en) | Photographic recording and reproduction method and apparatus | |
GB1450488A (en) | Light districution unit | |
US3478661A (en) | Modulated image photography | |
DE2121379C3 (en) | Audiovisual playback device and a dedicated image / sound record | |
US2926561A (en) | Panoramic picture system | |
US4484805A (en) | Photo splitting device | |
US2175185A (en) | Motion picture system and apparatus | |
US3323432A (en) | Multiple exposure camera | |
DE1056920B (en) | Device for automatic, electronically controlled exposure control for microfilm flow devices | |
US2118894A (en) | Apparatus for producing combined sound and motion picture films | |
IL45537A (en) | Feed mechanism for film in a device for photographic recording from transparent colour film or real subjects | |
CA1041341A (en) | Light distribution unit for photographic printing | |
DE2240746A1 (en) | OPTICAL IMAGING DEVICE | |
DE3028676A1 (en) | PHOTOGRAPHIC COPIER | |
US2232032A (en) | Image sheet | |
GB1179318A (en) | Improvements in or relating to Automatically Producing Prints from Strip Film. | |
US2112527A (en) | Sound and picture system | |
AT261932B (en) | Method and device for recording and spatial projection of objects | |
GB1086691A (en) | Method of and apparatus for providing muti-coloured pictures | |
DE649061C (en) | Method for applying several adjacent optical sound recordings to a tape |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |