GB2096336B - Controlling contrast - Google Patents

Controlling contrast

Info

Publication number
GB2096336B
GB2096336B GB8208111A GB8208111A GB2096336B GB 2096336 B GB2096336 B GB 2096336B GB 8208111 A GB8208111 A GB 8208111A GB 8208111 A GB8208111 A GB 8208111A GB 2096336 B GB2096336 B GB 2096336B
Authority
GB
United Kingdom
Prior art keywords
controlling contrast
contrast
controlling
Prior art date
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 languages
English (en)
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.)
Filing date
Publication date
Application filed by Eskofot AS filed Critical Eskofot AS
Publication of GB2096336A publication Critical patent/GB2096336A/en
Application granted granted Critical
Publication of GB2096336B publication Critical patent/GB2096336B/en
Expired legal-status Critical Current

Links

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)
  • Facsimile Image Signal Circuits (AREA)
  • Investigating Or Analysing Materials By Optical Means (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 (da) 1981-03-31 1981-03-31 Fremgangsmaade og apparat til styring af kontrasten ved reproduktion

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 (https=)
DE (1) DE3211059A1 (https=)
DK (1) DK147954B (https=)
GB (1) GB2096336B (https=)
NL (1) NL8201204A (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0095201B1 (en) * 1982-05-26 1986-08-27 Helioprint A/S Reproduction camera
NL8301858A (nl) * 1983-05-26 1984-12-17 Oce Helioprint As Reproductie-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 (de) * 1963-08-06 1965-01-28 Buescher & Jahn Verfahren und Vorrichtung zum Messen der Belichtung zur Herstellung von Raster- und Halbtonfilmen nach Halbtonnegativen bzw. Farbauszuegen in der Reproduktions-Fotografie
JPS5913011B2 (ja) * 1974-06-21 1984-03-27 富士写真フイルム株式会社 写真焼付露光量制御方法
DK153426B (da) * 1977-04-12 1988-07-11 Eskofot As Fremgangsmaade til styring kontrasten ved raster eproduktion

Also Published As

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

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Legal Events

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