GB2096336B - Controlling contrast - Google Patents

Controlling contrast

Info

Publication number: GB2096336B
Authority: GB; United Kingdom
Prior art keywords: controlling contrast; contrast; controlling
Prior art date: 1981-03-31
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

GB8208111A

Other versions

GB2096336A (en

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.)

Eskofot AS

Original Assignee

Eskofot AS

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.)

1981-03-31

Filing date

1982-03-19

Publication date

1986-02-12

1982-03-19 Application filed by Eskofot AS filed Critical Eskofot AS

1982-10-13 Publication of GB2096336A publication Critical patent/GB2096336A/en

1986-02-12 Application granted granted Critical

1986-02-12 Publication of GB2096336B publication Critical patent/GB2096336B/en

Status Expired legal-status Critical Current

Classifications

- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/4209—Photoelectric exposure meters for determining the exposure time in recording or reproducing
- G01J1/4219—Photoelectric exposure meters for determining the exposure time in recording or reproducing specially adapted for enlargers

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Spectroscopy & Molecular Physics (AREA)
Control Of Exposure In Printing And Copying (AREA)
Investigating Or Analysing Materials By Optical Means (AREA)
Facsimile Image Signal Circuits (AREA)
Lasers (AREA)

GB8208111A 1981-03-31 1982-03-19 Controlling contrast Expired GB2096336B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DK146381A DK147954B (en)	1981-03-31	1981-03-31	METHOD AND APPARATUS TO CONTROL THE CONTRAST BY REPRODUCTION

Publications (2)

Publication Number	Publication Date
GB2096336A GB2096336A (en)	1982-10-13
GB2096336B true GB2096336B (en)	1986-02-12

Family

ID=8105110

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB8208111A Expired GB2096336B (en)	1981-03-31	1982-03-19	Controlling contrast

Country Status (5)

Country	Link
JP (2)	JPS5816238A (en)
DE (1)	DE3211059A1 (en)
DK (1)	DK147954B (en)
GB (1)	GB2096336B (en)
NL (1)	NL8201204A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3365596D1 (en) *	1982-05-26	1986-10-02	Oce Helioprint As	Reproduction camera
NL8301858A (en) *	1983-05-26	1984-12-17	Oce Helioprint As	REPRODUCTION CAMERA.
US4812882A (en) *	1986-10-14	1989-03-14	Ciba-Geigy Ag	Contrast monitor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1186317B (en) *	1963-08-06	1965-01-28	Buescher & Jahn	Method and device for measuring the exposure for the production of halftone and halftone films from halftone negatives or color extracts in reproduction photography
JPS5913011B2 (en) *	1974-06-21	1984-03-27	富士写真フイルム株式会社	Photographic printing exposure control method
DK153426B (en) *	1977-04-12	1988-07-11	Eskofot As	PROCEDURE FOR MANAGING CONTRAST BY RASTER EPRODUCTION

1981
- 1981-03-31 DK DK146381A patent/DK147954B/en not_active Application Discontinuation
1982
- 1982-03-19 GB GB8208111A patent/GB2096336B/en not_active Expired
- 1982-03-23 NL NL8201204A patent/NL8201204A/en not_active Application Discontinuation
- 1982-03-25 DE DE19823211059 patent/DE3211059A1/en active Granted
- 1982-03-30 JP JP5222282A patent/JPS5816238A/en active Pending
1990
- 1990-07-20 JP JP1990076633U patent/JPH0318540U/ja active Pending

Also Published As

Publication number	Publication date
DK146381A (en)	1982-10-01
DK147954B (en)	1985-01-14
NL8201204A (en)	1982-10-18
JPS5816238A (en)	1983-01-29
GB2096336A (en)	1982-10-13
DE3211059A1 (en)	1982-11-11
DE3211059C2 (en)	1993-01-07
JPH0318540U (en)	1991-02-22

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Legal Events

Date	Code	Title	Description
1990-11-14	PCNP	Patent ceased through non-payment of renewal fee