JPS57207237A - Exposure device for photographic printer - Google Patents
Exposure device for photographic printerInfo
- Publication number
- JPS57207237A JPS57207237A JP9266881A JP9266881A JPS57207237A JP S57207237 A JPS57207237 A JP S57207237A JP 9266881 A JP9266881 A JP 9266881A JP 9266881 A JP9266881 A JP 9266881A JP S57207237 A JPS57207237 A JP S57207237A
- Authority
- JP
- Japan
- Prior art keywords
- light
- lens barrel
- prism
- negative film
- same nature
- 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
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Exposure In Printing And Copying (AREA)
Abstract
PURPOSE:To facilitate photometry of the light of the same nature as irradiation light to the plane of a negative film by providing the photodetector in a photometric part in a lens barrel, leading this out by using a light guide and performing photometry. CONSTITUTION:A photometric prism 16 and a prism surface diffusion plate 17 on the top surface thereof are provided near the inside wall of a lens barrel 13, and the diffused and mixed light of roughly the same nature as that of the light irradiated to a negative film surface 15 is conducted through a prism 16 and a light guide such as optical fiber and the quantity of the irradiation light is measured with a detector. If the internal light of a lens barrel 12 for diffusion is measured in this way, the measurement of the light of the same nature as the irradiation light onto the negative film surface is made possible.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9266881A JPS57207237A (en) | 1981-06-15 | 1981-06-15 | Exposure device for photographic printer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9266881A JPS57207237A (en) | 1981-06-15 | 1981-06-15 | Exposure device for photographic printer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57207237A true JPS57207237A (en) | 1982-12-18 |
Family
ID=14060848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9266881A Pending JPS57207237A (en) | 1981-06-15 | 1981-06-15 | Exposure device for photographic printer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57207237A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62245243A (en) * | 1986-04-18 | 1987-10-26 | Fuji Photo Film Co Ltd | Photometric method of photographic printer |
EP0757279A1 (en) * | 1995-08-02 | 1997-02-05 | Noritsu Koki Co., Ltd. | Photometric system for a photographic printing apparatus |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5285816A (en) * | 1976-01-10 | 1977-07-16 | Yoshihiro Yamada | Red fixed three color simultaneous exposure color automatic photographic print control system and device therefor |
-
1981
- 1981-06-15 JP JP9266881A patent/JPS57207237A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5285816A (en) * | 1976-01-10 | 1977-07-16 | Yoshihiro Yamada | Red fixed three color simultaneous exposure color automatic photographic print control system and device therefor |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62245243A (en) * | 1986-04-18 | 1987-10-26 | Fuji Photo Film Co Ltd | Photometric method of photographic printer |
EP0757279A1 (en) * | 1995-08-02 | 1997-02-05 | Noritsu Koki Co., Ltd. | Photometric system for a photographic printing apparatus |
US5731865A (en) * | 1995-08-02 | 1998-03-24 | Noritsu Koki Co., Ltd. | Photometric system for a photographic printing apparatus |
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