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JPS5789748A - Exposure time controlling method of picture copying device - Google Patents

Exposure time controlling method of picture copying device

Info

Publication number
JPS5789748A
JPS5789748A JP16559980A JP16559980A JPS5789748A JP S5789748 A JPS5789748 A JP S5789748A JP 16559980 A JP16559980 A JP 16559980A JP 16559980 A JP16559980 A JP 16559980A JP S5789748 A JPS5789748 A JP S5789748A
Authority
JP
Japan
Prior art keywords
exposure time
magnification
reciprocity law
law failure
original
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
Application number
JP16559980A
Other languages
Japanese (ja)
Inventor
Tsuneo Takagi
Hiroyuki Yonehara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dainippon Screen Manufacturing Co Ltd
Original Assignee
Dainippon Screen Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dainippon Screen Manufacturing Co Ltd filed Critical Dainippon Screen Manufacturing Co Ltd
Priority to JP16559980A priority Critical patent/JPS5789748A/en
Priority to GB8119514A priority patent/GB2078986B/en
Priority to DE3124693A priority patent/DE3124693C2/en
Priority to ES503365A priority patent/ES8300206A1/en
Priority to DK279981A priority patent/DK279981A/en
Priority to KR1019810002323A priority patent/KR850000016B1/en
Priority to IT4878481A priority patent/IT1171341B/en
Priority to FR8112657A priority patent/FR2485757A1/en
Publication of JPS5789748A publication Critical patent/JPS5789748A/en
Pending legal-status Critical Current

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 perform printing in the best exposure time without any reciprocity law failure when changing photographic conditions, by calculating the exposure time by an arithmetic equation wherein the reciprocity law failure is considered. CONSTITUTION:An original and a photosensitive sheet are set in a process camera, and the values of magnification, aperture and the highlight density of the principal part are inputted from an operation board 16 to a CPU15 through an interface 14. Position detectors 18 and 19 detect the positions of an original frame 1 and a lens frame 2, and an original frame controller 16 and a lens-frame controller 17 change their positions so as to obtain optical arrangement which corresponds to the set magnification. Then, an arithmetic equation wherein a reciprocity law failure is considered also is used to calculate an exposure time, which matches to the magnification, aperture, density and kind of a photosensitive material, by the CPU15, thereby controlling a shutter 9.
JP16559980A 1980-06-27 1980-11-25 Exposure time controlling method of picture copying device Pending JPS5789748A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP16559980A JPS5789748A (en) 1980-11-25 1980-11-25 Exposure time controlling method of picture copying device
GB8119514A GB2078986B (en) 1980-06-27 1981-06-24 Method and apparatus for controlling exposure time for photosensitive materials in consideration of reciprocity law failure
DE3124693A DE3124693C2 (en) 1980-06-27 1981-06-24 Method for setting exposure times in a repro camera
ES503365A ES8300206A1 (en) 1980-06-27 1981-06-25 Method and apparatus for controlling exposure time for photosensitive materials in consideration of reciprocity law failure
DK279981A DK279981A (en) 1980-06-27 1981-06-25 PROCEDURE FOR MANAGING A EXPOSURE TIME DUE TO THE RECIPROCITY LAW ERROR OF A SENSITIVE MATERIAL
KR1019810002323A KR850000016B1 (en) 1980-06-27 1981-06-26 Method for controlling exposure time for photo-sensitive materialsis consideration of reciprocity law failure
IT4878481A IT1171341B (en) 1980-06-27 1981-06-26 METHOD TO DETERMINE AN EXPOSURE TIME IN CONSIDERATION OF THE FAILURE OF THE LAW OF RECIPROCITY OF A PHOTOSENSITIVE MATERIAL
FR8112657A FR2485757A1 (en) 1980-06-27 1981-06-26 METHOD FOR SETTING A DURATION OF PHOTOGRAPHIC EXPOSURE TO TAKE ACCOUNT OF THE LACK OF APPLICATION OF THE LAW OF RECIPROCITY OF A PHOTOSENSITIVE MEDIUM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16559980A JPS5789748A (en) 1980-11-25 1980-11-25 Exposure time controlling method of picture copying device

Publications (1)

Publication Number Publication Date
JPS5789748A true JPS5789748A (en) 1982-06-04

Family

ID=15815404

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16559980A Pending JPS5789748A (en) 1980-06-27 1980-11-25 Exposure time controlling method of picture copying device

Country Status (1)

Country Link
JP (1) JPS5789748A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5986037A (en) * 1982-11-08 1984-05-18 Fuji Photo Film Co Ltd Controller for amount of exposure for photographic printing
JPS60113233A (en) * 1983-11-04 1985-06-19 アグフア‐ゲヴエルト・アクチエンゲゼルシヤフト Photocopying equipment for copying roll film
JPS6153628A (en) * 1984-08-24 1986-03-17 Sakata Shokai Ltd Setting method of exposure condition
US4924260A (en) * 1987-06-23 1990-05-08 Polaroid Corporation Exposure system of image forming apparatus
WO1993013455A1 (en) * 1987-06-23 1993-07-08 Kenichi Shimizu Exposure device of image formation apparatus
WO1993013456A1 (en) * 1987-06-23 1993-07-08 Kenichi Shimizu Exposure device of image formation apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4846329A (en) * 1971-10-07 1973-07-02
JPS5232327A (en) * 1975-09-05 1977-03-11 Fuji Photo Film Co Ltd Slope control circuit of photographic printer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4846329A (en) * 1971-10-07 1973-07-02
JPS5232327A (en) * 1975-09-05 1977-03-11 Fuji Photo Film Co Ltd Slope control circuit of photographic printer

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5986037A (en) * 1982-11-08 1984-05-18 Fuji Photo Film Co Ltd Controller for amount of exposure for photographic printing
JPS60113233A (en) * 1983-11-04 1985-06-19 アグフア‐ゲヴエルト・アクチエンゲゼルシヤフト Photocopying equipment for copying roll film
JPH0625846B2 (en) * 1983-11-04 1994-04-06 アグフア‐ゲヴエルト・アクチエンゲゼルシヤフト Photocopier for copying roll film
JPS6153628A (en) * 1984-08-24 1986-03-17 Sakata Shokai Ltd Setting method of exposure condition
US4924260A (en) * 1987-06-23 1990-05-08 Polaroid Corporation Exposure system of image forming apparatus
WO1993013455A1 (en) * 1987-06-23 1993-07-08 Kenichi Shimizu Exposure device of image formation apparatus
WO1993013456A1 (en) * 1987-06-23 1993-07-08 Kenichi Shimizu Exposure device of image formation apparatus

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