JPS57136639A - Scanner for photographic film - Google Patents
Scanner for photographic filmInfo
- Publication number
- JPS57136639A JPS57136639A JP2268281A JP2268281A JPS57136639A JP S57136639 A JPS57136639 A JP S57136639A JP 2268281 A JP2268281 A JP 2268281A JP 2268281 A JP2268281 A JP 2268281A JP S57136639 A JPS57136639 A JP S57136639A
- Authority
- JP
- Japan
- Prior art keywords
- light
- slit
- line sensor
- negative
- filters
- 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.)
- Pending
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
- G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
- G03B27/73—Controlling exposure by variation of spectral composition, e.g. multicolor printers
- G03B27/735—Controlling exposure by variation of spectral composition, e.g. multicolor printers in dependence upon automatic analysis of the original
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Exposure In Printing And Copying (AREA)
Abstract
PURPOSE:To scan the entire surface of a negative by color separation by a simple structure wherein a rotary disk having fitted filters, slit masks of various sizes, line sensor photodetectors, etc., corresponding to them are incorporated. CONSTITUTION:Light from a light source for lighting consisting of a lamp 8 and optical fibers 7 passes through one of filters 11 fitted to a rotary disk 10 rotated by a motor 9 to light up the screen 2 of a negative 1, and further passes through a scanning slit mask 3 to form a slit-shaped negative image 6 on an array of line sensor photodetectors 5 through a lens 4. The outputs of the line sensor photodetectors 5 are sampled every time the light passed through each filter 11 reaches the slit mask 3, and led out successively by a multiplexer, thus scanning the neagtive 1 at right angles to its advancing direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2268281A JPS57136639A (en) | 1981-02-18 | 1981-02-18 | Scanner for photographic film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2268281A JPS57136639A (en) | 1981-02-18 | 1981-02-18 | Scanner for photographic film |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57136639A true JPS57136639A (en) | 1982-08-23 |
Family
ID=12089626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2268281A Pending JPS57136639A (en) | 1981-02-18 | 1981-02-18 | Scanner for photographic film |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57136639A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63274824A (en) * | 1987-05-06 | 1988-11-11 | Minoru Morita | Density measuring instrument for photography |
JPS63274941A (en) * | 1987-05-06 | 1988-11-11 | Minoru Morita | Density measuring instrument for photograph |
FR2621710A1 (en) * | 1987-10-09 | 1989-04-14 | Kis Photo Ind | Combined device for chromatic analysis of a photographic negative film to be printed, for printing negative photographic films and for measuring the optical density in reflection of an exposed and developed photosensitive paper |
US4931831A (en) * | 1987-12-11 | 1990-06-05 | Ciba-Geigy Corporation | Photographic copying and enlarging apparatus |
US4951084A (en) * | 1987-10-15 | 1990-08-21 | Ciba-Geigy Corporation | Photographic color copying apparatus and exposure control process |
-
1981
- 1981-02-18 JP JP2268281A patent/JPS57136639A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63274824A (en) * | 1987-05-06 | 1988-11-11 | Minoru Morita | Density measuring instrument for photography |
JPS63274941A (en) * | 1987-05-06 | 1988-11-11 | Minoru Morita | Density measuring instrument for photograph |
FR2621710A1 (en) * | 1987-10-09 | 1989-04-14 | Kis Photo Ind | Combined device for chromatic analysis of a photographic negative film to be printed, for printing negative photographic films and for measuring the optical density in reflection of an exposed and developed photosensitive paper |
US4951084A (en) * | 1987-10-15 | 1990-08-21 | Ciba-Geigy Corporation | Photographic color copying apparatus and exposure control process |
EP0489719A2 (en) * | 1987-10-15 | 1992-06-10 | Gretag Imaging Ag | Method of controlling the exposure of a photographic colour copier |
US4931831A (en) * | 1987-12-11 | 1990-06-05 | Ciba-Geigy Corporation | Photographic copying and enlarging apparatus |
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