CA1023183A - Photographic colour print exposure control using area density measurements - Google Patents

Photographic colour print exposure control using area density measurements

Info

Publication number: CA1023183A
Authority: CA; Canada
Prior art keywords: exposure control; area density; density measurements; colour print; print exposure
Prior art date: 1974-02-08
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.): Expired

Application number

CA219,487A

Other languages

English (en)

Inventor

Walter Grossmann

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.)

Gretag AG

Original Assignee

Gretag 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.)

1974-02-08

Filing date

1975-02-06

Publication date

1977-12-27

1975-02-06 Application filed by Gretag AG filed Critical Gretag AG

1977-12-27 Application granted granted Critical

1977-12-27 Publication of CA1023183A publication Critical patent/CA1023183A/en

Status Expired legal-status Critical Current

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
- G03B27/73—Controlling exposure by variation of spectral composition, e.g. multicolor printers
- G03B27/735—Controlling exposure by variation of spectral composition, e.g. multicolor printers in dependence upon automatic analysis of the original

Landscapes

Physics & Mathematics (AREA)
Spectroscopy & Molecular Physics (AREA)
General Physics & Mathematics (AREA)
Control Of Exposure In Printing And Copying (AREA)

CA219,487A 1974-02-08 1975-02-06 Photographic colour print exposure control using area density measurements Expired CA1023183A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19742406191 DE2406191C2 (de)	1974-02-08	1974-02-08	Verfahren zur Steuerung der Belichtung bei der Herstellung von fotografischen Kopien

Publications (1)

Publication Number	Publication Date
CA1023183A true CA1023183A (en)	1977-12-27

Family

ID=5906980

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA219,487A Expired CA1023183A (en)	1974-02-08	1975-02-06	Photographic colour print exposure control using area density measurements

Country Status (8)

Country	Link
JP (1)	JPS50130443A (de)
BE (1)	BE825290A (de)
CA (1)	CA1023183A (de)
CH (1)	CH589869A5 (de)
DE (1)	DE2406191C2 (de)
FR (1)	FR2260816B1 (de)
GB (1)	GB1486972A (de)
NL (1)	NL7500802A (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CH596573A5 (de) *	1975-08-14	1978-03-15	Gretag Ag
CH601839A5 (de) *	1975-11-24	1978-07-14	Gretag Ag
JPS52156625A (en) *	1976-06-22	1977-12-27	Fuji Photo Film Co Ltd	Automatic color printing method utili#ing skin color
JPS52156624A (en) *	1976-06-22	1977-12-27	Fuji Photo Film Co Ltd	Detection of skin color of color film
DE2822717C2 (de) *	1977-05-25	1986-09-25	Fuji Photo Film Co., Ltd., Minami-Ashigara, Kanagawa	Einrichtung zum Korrigieren der Belichtung in einem photographischen Farbkopiergerät
JPS5745564A (en) *	1980-09-02	1982-03-15	Konishiroku Photo Ind Co Ltd	Automatic image quality adjuster in copying machine
JPS5763524A (en) *	1980-10-03	1982-04-17	Erutetsuku:Kk	Analyzer of negative color film
DK156497C (da) *	1984-08-31	1990-01-15	Danagraf As	Fremgangsmaade og apparat til styring af et reproduktionskamera
DE3802681C2 (de) *	1987-01-30	1997-01-09	Fuji Photo Film Co Ltd	Verfahren zur Klassifizierung von Farbvorlagen und Vorrichtung hierfür

1974
- 1974-02-08 DE DE19742406191 patent/DE2406191C2/de not_active Expired
1975
- 1975-01-23 NL NL7500802A patent/NL7500802A/xx unknown
- 1975-02-05 CH CH139675A patent/CH589869A5/xx not_active IP Right Cessation
- 1975-02-06 CA CA219,487A patent/CA1023183A/en not_active Expired
- 1975-02-07 BE BE153152A patent/BE825290A/xx unknown
- 1975-02-07 FR FR7503994A patent/FR2260816B1/fr not_active Expired
- 1975-02-07 GB GB542775A patent/GB1486972A/en not_active Expired
- 1975-02-08 JP JP1590875A patent/JPS50130443A/ja active Pending

Also Published As

Publication number	Publication date
GB1486972A (en)	1977-09-28
JPS50130443A (de)	1975-10-15
DE2406191A1 (de)	1975-08-21
NL7500802A (nl)	1975-08-12
BE825290A (fr)	1975-08-07
FR2260816A1 (de)	1975-09-05
DE2406191C2 (de)	1985-02-28
CH589869A5 (de)	1977-07-15
FR2260816B1 (de)	1977-04-15

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