IT1171341B - Metodo per determinare un tempo di esposizione in considerazione del fallimento della legge di reciprocita' di un materiale fotosensibile - Google Patents

Metodo per determinare un tempo di esposizione in considerazione del fallimento della legge di reciprocita' di un materiale fotosensibile

Info

Publication number
IT1171341B
IT1171341B IT4878481A IT4878481A IT1171341B IT 1171341 B IT1171341 B IT 1171341B IT 4878481 A IT4878481 A IT 4878481A IT 4878481 A IT4878481 A IT 4878481A IT 1171341 B IT1171341 B IT 1171341B
Authority
IT
Italy
Prior art keywords
reciprocity
law
consideration
failure
exposure time
Prior art date
Application number
IT4878481A
Other languages
English (en)
Italian (it)
Other versions
IT8148784A0 (it
IT8148784A1 (it
Inventor
Tsuneo Takagi
Hiroyuki Yonehara
Original Assignee
Dainippon Screen Mfg
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
Priority claimed from JP8644280A external-priority patent/JPS5713443A/ja
Priority claimed from JP16559980A external-priority patent/JPS5789748A/ja
Application filed by Dainippon Screen Mfg filed Critical Dainippon Screen Mfg
Publication of IT8148784A0 publication Critical patent/IT8148784A0/it
Publication of IT8148784A1 publication Critical patent/IT8148784A1/it
Application granted granted Critical
Publication of IT1171341B publication Critical patent/IT1171341B/it

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
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/091—Digital circuits
    • G03B7/097—Digital circuits for control of both exposure time and aperture

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Exposure Control For Cameras (AREA)
IT4878481A 1980-06-27 1981-06-26 Metodo per determinare un tempo di esposizione in considerazione del fallimento della legge di reciprocita' di un materiale fotosensibile IT1171341B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8644280A JPS5713443A (en) 1980-06-27 1980-06-27 Controlling method for exposure time of photoengraving camera
JP16559980A JPS5789748A (en) 1980-11-25 1980-11-25 Exposure time controlling method of picture copying device

Publications (3)

Publication Number Publication Date
IT8148784A0 IT8148784A0 (it) 1981-06-26
IT8148784A1 IT8148784A1 (it) 1982-12-26
IT1171341B true IT1171341B (it) 1987-06-10

Family

ID=26427562

Family Applications (1)

Application Number Title Priority Date Filing Date
IT4878481A IT1171341B (it) 1980-06-27 1981-06-26 Metodo per determinare un tempo di esposizione in considerazione del fallimento della legge di reciprocita' di un materiale fotosensibile

Country Status (6)

Country Link
DE (1) DE3124693C2 (enExample)
DK (1) DK279981A (enExample)
ES (1) ES503365A0 (enExample)
FR (1) FR2485757A1 (enExample)
GB (1) GB2078986B (enExample)
IT (1) IT1171341B (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5756836A (en) * 1980-09-22 1982-04-05 Dainippon Screen Mfg Co Ltd Method and device for correcting anti-reciprocity law in case of color reproduction
DE3603249A1 (de) * 1986-02-03 1987-08-06 Hauck Gmbh Belichtungszeitgeber fuer photographische materialien

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1046497B (de) * 1957-06-19 1958-12-11 Agfa Ag Zeitschaltvorrichtung fuer fotografische Kopiergeraete
DE1497371C3 (de) * 1965-03-10 1974-01-10 Agfa-Gevaert Ag, 5090 Leverkusen Verfahren zur Regelung der Belichtungszeit von Kopiergeräten
GB1311470A (en) * 1969-11-19 1973-03-28 Littlejohn Co Ltd Sidney R Photographic reproduction cameras
SE363173B (enExample) * 1972-05-25 1974-01-07 Misomex Ab
DE2251334C3 (de) * 1972-10-19 1980-04-10 Eskofot A/S, Ballerup (Daenemark) Reprokamera
US4168120A (en) * 1978-04-17 1979-09-18 Pako Corporation Automatic exposure corrections for photographic printer

Also Published As

Publication number Publication date
GB2078986A (en) 1982-01-13
FR2485757B1 (enExample) 1984-12-21
FR2485757A1 (fr) 1981-12-31
IT8148784A0 (it) 1981-06-26
DK279981A (da) 1981-12-28
ES8300206A1 (es) 1982-10-01
GB2078986B (en) 1984-06-27
ES503365A0 (es) 1982-10-01
IT8148784A1 (it) 1982-12-26
DE3124693A1 (de) 1982-02-25
DE3124693C2 (de) 1987-02-19

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