JPH0535414B2 - - Google Patents

Info

Publication number
JPH0535414B2
JPH0535414B2 JP58198942A JP19894283A JPH0535414B2 JP H0535414 B2 JPH0535414 B2 JP H0535414B2 JP 58198942 A JP58198942 A JP 58198942A JP 19894283 A JP19894283 A JP 19894283A JP H0535414 B2 JPH0535414 B2 JP H0535414B2
Authority
JP
Japan
Prior art keywords
potential
signal
detection circuit
ultimate
optical density
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 - Lifetime
Application number
JP58198942A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5997133A (ja
Inventor
Heritsuto Yozefu Ritsuerufuerudo Uiremu
Berunarudo Buure Eeruteinku Basuteiaan
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.)
Canon Production Printing Netherlands BV
Original Assignee
Oce Nederland BV
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 Oce Nederland BV filed Critical Oce Nederland BV
Publication of JPS5997133A publication Critical patent/JPS5997133A/ja
Publication of JPH0535414B2 publication Critical patent/JPH0535414B2/ja
Granted legal-status Critical Current

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
    • G03B27/80—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus in dependence upon automatic analysis of the original

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
  • Facsimile Scanning Arrangements (AREA)
JP58198942A 1982-11-03 1983-10-24 オリジナルの背景と映像域の双方の光学濃度を測定する装置 Granted JPS5997133A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8204260 1982-11-03
NL8204260A NL8204260A (nl) 1982-11-03 1982-11-03 Meetinrichting voor het meten van de optische dichtheid van zowel de ondergrond als van de beeldpartijen in een orgineel.

Publications (2)

Publication Number Publication Date
JPS5997133A JPS5997133A (ja) 1984-06-04
JPH0535414B2 true JPH0535414B2 (cg-RX-API-DMAC7.html) 1993-05-26

Family

ID=19840523

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58198942A Granted JPS5997133A (ja) 1982-11-03 1983-10-24 オリジナルの背景と映像域の双方の光学濃度を測定する装置

Country Status (5)

Country Link
US (1) US4585352A (cg-RX-API-DMAC7.html)
EP (1) EP0108440B1 (cg-RX-API-DMAC7.html)
JP (1) JPS5997133A (cg-RX-API-DMAC7.html)
DE (1) DE3365161D1 (cg-RX-API-DMAC7.html)
NL (1) NL8204260A (cg-RX-API-DMAC7.html)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8500731A (nl) * 1985-03-14 1986-10-01 Oce Nederland B V Patents And Inrichting voor het bepalen van een maat voor de hoeveelheid zwak weergegeven informatie van een origineel.
JPH0640197B2 (ja) * 1986-02-12 1994-05-25 富士写真フイルム株式会社 写真焼付露光量決定方法
US4983854A (en) * 1988-09-15 1991-01-08 Brother Kogyo Kabushiki Kaisha Sheet detection apparatus with reflecting member
US5032733A (en) * 1988-10-04 1991-07-16 Fuji Photo Film Co., Ltd. Method for detecting unexposed regions

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202042A (en) * 1962-08-06 1965-08-24 Jamieson Ballard System for measuring separately background and average line luminance or density
US3717077A (en) * 1972-02-22 1973-02-20 Eastman Kodak Co Exposure control apparatus
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
DE2654943C2 (de) * 1976-12-03 1985-10-24 Agfa-Gevaert Ag, 5090 Leverkusen Verfahren und Vorrichtung zur Vorprüfung von zu einem Vorlagenband zusammengefaßten Kopiervorlagen
CH610673A5 (cg-RX-API-DMAC7.html) * 1977-02-01 1979-04-30 Gretag Ag
DE2753632C2 (de) * 1977-12-01 1985-08-29 Agfa-Gevaert Ag, 5090 Leverkusen Verfahren und Vorrichtung zum Selektieren von kopierunwürdigen fotografischen Vorlagen
DE2831836A1 (de) * 1978-07-20 1980-02-07 Agfa Gevaert Ag Vorrichtung zur vorpruefung von kopiervorlagen
JPS5560826A (en) * 1978-11-01 1980-05-08 Olympus Optical Co Ltd Photometry
GB2106667B (en) * 1981-07-20 1985-08-07 Dainippon Screen Mfg Controlling activity of developing solution against blackening

Also Published As

Publication number Publication date
EP0108440B1 (en) 1986-08-06
US4585352A (en) 1986-04-29
NL8204260A (nl) 1984-06-01
DE3365161D1 (en) 1986-09-11
JPS5997133A (ja) 1984-06-04
EP0108440A1 (en) 1984-05-16

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