CH534898A - Fotografisches Kopiergerät - Google Patents

Fotografisches Kopiergerät

Info

Publication number: CH534898A
Authority: CH; Switzerland
Prior art keywords: photographic copier; copier; photographic
Prior art date: 1970-09-23

Application number

CH1298171A

Other languages

English (en)

Inventor

Dreher Karl

Schneider Othmar

Original Assignee

Agfa Gevaert 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.)

1970-09-23

Filing date

1971-09-03

Publication date

1973-03-15

1971-09-03 Application filed by Agfa Gevaert Ag filed Critical Agfa Gevaert Ag

1973-03-15 Publication of CH534898A publication Critical patent/CH534898A/de

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
- G03B27/80—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus in dependence upon automatic analysis of the original
- 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
- G03B27/727—Optical projection devices wherein the contrast is controlled optically (e.g. uniform exposure, two colour exposure on variable contrast sensitive material)

Landscapes

Physics & Mathematics (AREA)
Spectroscopy & Molecular Physics (AREA)
General Physics & Mathematics (AREA)
Projection-Type Copiers In General (AREA)
Light Sources And Details Of Projection-Printing Devices (AREA)
Control Of Exposure In Printing And Copying (AREA)
Cameras Adapted For Combination With Other Photographic Or Optical Apparatuses (AREA)

CH1298171A 1970-09-23 1971-09-03 Fotografisches Kopiergerät CH534898A (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19702046885 DE2046885A1 (de)	1970-09-23	1970-09-23	Fotografisches Kopiergerät

Publications (1)

Publication Number	Publication Date
CH534898A true CH534898A (de)	1973-03-15

Family

ID=5783189

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH1298171A CH534898A (de)	1970-09-23	1971-09-03	Fotografisches Kopiergerät

Country Status (5)

Country	Link
BE (1)	BE772715A (de)
CH (1)	CH534898A (de)
DE (1)	DE2046885A1 (de)
FR (1)	FR2107295A5 (de)
GB (1)	GB1362941A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2624866C3 (de)	1976-06-03	1979-02-08	Hoechst Ag, 6000 Frankfurt	Vorrichtung zur Steuerung der von einer Lichtquelle auf ein zu belichtendes Material abgegebenen Lichtmenge

1970
- 1970-09-23 DE DE19702046885 patent/DE2046885A1/de active Pending
1971
- 1971-09-03 CH CH1298171A patent/CH534898A/de not_active IP Right Cessation
- 1971-09-06 FR FR7132072A patent/FR2107295A5/fr not_active Expired
- 1971-09-17 BE BE772715A patent/BE772715A/nl unknown
- 1971-09-23 GB GB4443171A patent/GB1362941A/en not_active Expired

Also Published As

Publication number	Publication date
DE2046885A1 (de)	1972-03-30
GB1362941A (en)	1974-08-07
BE772715A (nl)	1972-03-17
FR2107295A5 (de)	1972-05-05

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Legal Events

Date	Code	Title	Description
1977-04-15	PL	Patent ceased