IT7804860A0 - Disposizione circuitale elettrica per il controllo del tempo di esposizione in apparecchi perl'ingrandimento fotografico. - Google Patents

Disposizione circuitale elettrica per il controllo del tempo di esposizione in apparecchi perl'ingrandimento fotografico.

Info

Publication number
IT7804860A0
IT7804860A0 IT7804860A IT486078A IT7804860A0 IT 7804860 A0 IT7804860 A0 IT 7804860A0 IT 7804860 A IT7804860 A IT 7804860A IT 486078 A IT486078 A IT 486078A IT 7804860 A0 IT7804860 A0 IT 7804860A0
Authority
IT
Italy
Prior art keywords
control
exposure time
electrical circuit
circuit arrangement
photographic magnification
Prior art date
Application number
IT7804860A
Other languages
English (en)
Other versions
IT1103341B (it
Inventor
Vinatzer Alex
Original Assignee
Durst Ag
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 Durst Ag filed Critical Durst Ag
Priority to IT04860/78A priority Critical patent/IT1103341B/it
Publication of IT7804860A0 publication Critical patent/IT7804860A0/it
Priority to US06/060,298 priority patent/US4285593A/en
Priority to EP79103192A priority patent/EP0008771A1/de
Priority to JP11432679A priority patent/JPS5540496A/ja
Application granted granted Critical
Publication of IT1103341B publication Critical patent/IT1103341B/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
    • G03B27/00—Photographic printing apparatus
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
    • G03B27/722—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus when the reproduction scale is changed

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
IT04860/78A 1978-09-07 1978-09-07 Disposizione circuitale elettrica per il controllo del tempo di esposizione in apparecchi per l'ingrandimento fotografico IT1103341B (it)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IT04860/78A IT1103341B (it) 1978-09-07 1978-09-07 Disposizione circuitale elettrica per il controllo del tempo di esposizione in apparecchi per l'ingrandimento fotografico
US06/060,298 US4285593A (en) 1978-09-07 1979-07-25 Circuit for the control of exposure time in photographic enlarging equipment
EP79103192A EP0008771A1 (de) 1978-09-07 1979-08-29 Schaltungsanordnung zur Steuerung der Belichtungszeit bei fotografischen Vergrösserungsgeräten
JP11432679A JPS5540496A (en) 1978-09-07 1979-09-07 Controlling circuit for exposure time of photograph enlarger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT04860/78A IT1103341B (it) 1978-09-07 1978-09-07 Disposizione circuitale elettrica per il controllo del tempo di esposizione in apparecchi per l'ingrandimento fotografico

Publications (2)

Publication Number Publication Date
IT7804860A0 true IT7804860A0 (it) 1978-09-07
IT1103341B IT1103341B (it) 1985-10-14

Family

ID=11115216

Family Applications (1)

Application Number Title Priority Date Filing Date
IT04860/78A IT1103341B (it) 1978-09-07 1978-09-07 Disposizione circuitale elettrica per il controllo del tempo di esposizione in apparecchi per l'ingrandimento fotografico

Country Status (4)

Country Link
US (1) US4285593A (it)
EP (1) EP0008771A1 (it)
JP (1) JPS5540496A (it)
IT (1) IT1103341B (it)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57167021A (en) * 1981-04-07 1982-10-14 Fuji Photo Film Co Ltd Print density compensation device for enlarger
JPS5825633A (ja) * 1981-08-08 1983-02-15 Takahama Insatsusho:Kk カラ−分解方法及びその装置
JPS59136728A (ja) * 1983-01-26 1984-08-06 Canon Inc 画像形成装置
US4821068A (en) * 1983-05-10 1989-04-11 Canon Kabushiki Kaisha Image forming apparatus
JPS60118537A (ja) * 1983-11-28 1985-06-26 Fuji Xerox Co Ltd 用紙収納装置
JPS61103140A (ja) * 1984-10-26 1986-05-21 Fuji Photo Film Co Ltd 写真焼付装置
JPS63191338U (it) * 1988-02-17 1988-12-09
JPH01180434U (it) * 1988-06-08 1989-12-26
JP2504162Y2 (ja) * 1990-01-13 1996-07-10 株式会社リコー 給紙カセット
JPH0750355Y2 (ja) * 1991-02-18 1995-11-15 株式会社精工舎 給紙カセット
CN111405195B (zh) * 2020-03-23 2021-06-22 西安微电子技术研究所 一种双曝光cmos图像传感器的数据转换装置及其转换方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2921498A (en) * 1957-09-12 1960-01-19 Simmon Brothers Inc Electrical control device for use with photographic color enlargers and printers
DE1906846U (de) * 1963-10-10 1964-12-17 Agfa Ag Optisches kopiergeraet mit belichtungsmesseinrichtung.
US3521952A (en) * 1967-07-13 1970-07-28 Robert H Nelson Light exposure control unit
DE1957573A1 (de) * 1968-11-17 1970-07-09 Minolta Camera Kk Projizierendes Kopiergeraet
JPS5243365B2 (it) * 1971-09-22 1977-10-29
US3698809A (en) * 1971-10-07 1972-10-17 Eastman Kodak Co Automatic illumination control for photographic printing apparatus
US3884576A (en) * 1972-02-05 1975-05-20 Ricoh Kk Exposure unit for a copying machine having a variable magnification
DE2364914A1 (de) * 1973-12-28 1975-07-03 Heinze Einrichtung zum ermitteln von filterund belichtungswerten zum farbtonrichtigen kopieren von farbvorlagen
US4017180A (en) * 1975-08-07 1977-04-12 Adddressograph Multigraph Corporation Exposure control for copying machine
US4020495A (en) * 1975-12-29 1977-04-26 Itek Corporation Self testing phototypesetter flash intensity control system
US4113378A (en) * 1977-03-02 1978-09-12 Itek Corporation Linear exposure control system

Also Published As

Publication number Publication date
IT1103341B (it) 1985-10-14
US4285593A (en) 1981-08-25
EP0008771A1 (de) 1980-03-19
JPS5540496A (en) 1980-03-21

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