NL193036C - Inrichting voor het bepalen van de belichting en het contrast door vooraftasting in een elektronisch fotoafdrukstelsel. - Google Patents

Inrichting voor het bepalen van de belichting en het contrast door vooraftasting in een elektronisch fotoafdrukstelsel. Download PDF

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Publication number
NL193036C
NL193036C NL8105890A NL8105890A NL193036C NL 193036 C NL193036 C NL 193036C NL 8105890 A NL8105890 A NL 8105890A NL 8105890 A NL8105890 A NL 8105890A NL 193036 C NL193036 C NL 193036C
Authority
NL
Netherlands
Prior art keywords
density
scan
exposure
scanning
signal
Prior art date
Application number
NL8105890A
Other languages
English (en)
Dutch (nl)
Other versions
NL8105890A (nl
NL193036B (nl
Original Assignee
Logetronics Inc
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 Logetronics Inc filed Critical Logetronics Inc
Publication of NL8105890A publication Critical patent/NL8105890A/nl
Publication of NL193036B publication Critical patent/NL193036B/xx
Application granted granted Critical
Publication of NL193036C publication Critical patent/NL193036C/nl

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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
    • G03B27/725—Optical projection devices wherein the contrast is controlled electrically (e.g. cathode ray tube masking)

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection-Type Copiers In General (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)
  • X-Ray Techniques (AREA)
NL8105890A 1981-06-05 1981-12-29 Inrichting voor het bepalen van de belichting en het contrast door vooraftasting in een elektronisch fotoafdrukstelsel. NL193036C (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/270,758 US4344699A (en) 1981-06-05 1981-06-05 Exposure and contrast determination by prescanning in electronic photoprinting systems
US27075881 1981-06-05

Publications (3)

Publication Number Publication Date
NL8105890A NL8105890A (nl) 1983-01-03
NL193036B NL193036B (nl) 1998-04-01
NL193036C true NL193036C (nl) 1998-08-04

Family

ID=23032678

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8105890A NL193036C (nl) 1981-06-05 1981-12-29 Inrichting voor het bepalen van de belichting en het contrast door vooraftasting in een elektronisch fotoafdrukstelsel.

Country Status (11)

Country Link
US (1) US4344699A (fr)
JP (1) JPH065413B2 (fr)
CA (1) CA1177411A (fr)
CH (1) CH648419A5 (fr)
DD (1) DD202602A5 (fr)
DE (1) DE3204581A1 (fr)
FR (1) FR2507337B1 (fr)
GB (1) GB2100451B (fr)
NL (1) NL193036C (fr)
SE (1) SE447425B (fr)
SU (1) SU1367868A3 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4394089A (en) * 1981-09-23 1983-07-19 Logetronics, Inc. Color photoprinting with a scanning memory mask
US4433345A (en) * 1981-06-19 1984-02-21 Loge/Dunn Instruments, Inc. Video image recording methods and devices
US4530011A (en) * 1981-06-19 1985-07-16 Loge/Dunn Instruments, Inc. Apparatus for maintaining of a cathode ray tube image within the light acceptance range of a photographic film
JPS58172654A (ja) * 1982-04-02 1983-10-11 Canon Inc 画像記録制御装置
DD208874A1 (de) * 1982-09-01 1984-04-11 Lutz Papenkordt Verfahren zur helligkeitssteuerung bei elektronischen kopiergeraeten
US4640603A (en) * 1982-09-24 1987-02-03 Canon Kabushiki Kaisha Copying apparatus
DE3407064A1 (de) * 1983-02-28 1984-08-30 Canon K.K., Tokio/Tokyo Bildreproduktionsgeraet
JP2501782B2 (ja) * 1983-09-16 1996-05-29 株式会社ニコン 画像走査装置
US4681427A (en) * 1985-05-06 1987-07-21 Polaroid Corporation Electronic printing method
JPH07113961B2 (ja) * 1985-08-05 1995-12-06 キヤノン株式会社 信号処理装置
US4699504A (en) * 1986-08-06 1987-10-13 Bell & Howell Company Control system for microimage recorders
DE3629793C2 (de) * 1986-09-02 1994-11-24 Agfa Gevaert Ag Verfahren zum punkt- und zeilenweisen Kopieren einer mehrfarbigen Kopiervorlage und Vorrichtung zur Durchführung dieses Verfahrens
US4875071A (en) * 1987-07-15 1989-10-17 Fuji Photo Film Co. Ltd. Shading correcting apparatus for photographic printer
EP0305327A1 (fr) * 1987-08-21 1989-03-01 Ilford Ag Méthode et dispositif pour faire des photos à partir de diapositives
US5070358A (en) * 1990-03-16 1991-12-03 Stouffer Industries Inc. Custom contact printer for selective visual contact printing
JPH08271980A (ja) * 1995-03-30 1996-10-18 Minolta Co Ltd 画像読取装置
DE19852302A1 (de) * 1998-11-12 2000-05-25 Fraunhofer Ges Forschung Verfahren und Vorrichtung zum Bearbeiten von Werkstücken mit Hochenergiestrahlung

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3034400A (en) * 1956-09-29 1962-05-15 Agfa Ag Photographic projection printing apparatus
DE1042374B (de) * 1956-10-06 1958-10-30 Karl August Klatte Dr Verfahren zur Herstellung von Farbkopien
GB856423A (en) * 1957-09-24 1960-12-14 Hunter Penrose Ltd Improvements in or relating to photographic colour reproduction apparatus
GB906146A (en) * 1960-03-02 1962-09-19 Ilford Ltd Improvements in or relating to photographic printing
US3455632A (en) * 1965-01-13 1969-07-15 Ilford Ltd Method of classifying photographic material
CH453878A (de) * 1965-02-12 1968-03-31 Gretag Ag Photographisches Reproduktionsverfahren und Einrichtung zur Durchführung dieses Verfahrens
US3677641A (en) * 1970-08-24 1972-07-18 Eastman Kodak Co Photographic printing apparatus
DE2408019C2 (de) * 1974-02-20 1985-09-19 Agfa-Gevaert Ag, 5090 Leverkusen Verfahren und Vorrichtung zur Abtastung und Aufzeichnung von bildmäßigen Vorlagen
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
JPS5119334A (en) * 1974-08-07 1976-02-16 Tajima Metaruwaaku Kk Soshokutenjo oyobi majikiryoruubaayunitsuto
CH596573A5 (fr) * 1975-08-14 1978-03-15 Gretag Ag
DE2654943C2 (de) * 1976-12-03 1985-10-24 Agfa-Gevaert Ag, 5090 Leverkusen Verfahren und Vorrichtung zur Vorprüfung von zu einem Vorlagenband zusammengefaßten Kopiervorlagen
GB1564046A (en) * 1976-12-31 1980-04-02 Xerox Corp Exposure control system
DE2720944A1 (de) * 1977-05-10 1978-11-16 Hell Rudolf Dr Ing Gmbh Verfahren und einrichtung zur herstellung von bildkombinationen
US4145709A (en) * 1977-09-19 1979-03-20 Kelly Michael J Automatic localized micro-contrast control for photographic printing systems
US4263001A (en) * 1978-09-18 1981-04-21 Deutsch Jeffrey T Apparatus and method for enhancement of optical images
JPS55116340A (en) * 1979-02-28 1980-09-06 Fuji Photo Film Co Ltd Method and device for processing gradation of radiation picture
US4265532A (en) * 1979-06-21 1981-05-05 Logetronics Inc. Photo printing by intensity and velocity modulation
DE2926313A1 (de) * 1979-06-29 1981-02-05 Agfa Gevaert Ag Verfahren zur belichtungssteuerung eines mikrofilm-lese-kopiergeraetes sowie mikrofilm-lese-kopiergeraet zur durchfuehrung des verfahrens
DE2944229A1 (de) * 1979-11-02 1981-05-14 Wilfried Dipl.-Ing. 7920 Heidenheim Koch Papierbelichtungsmesser zur bestimmung von belichtungszeit und kopierumfang in einem arbeitsgang
GB2088574B (en) * 1980-12-03 1984-07-18 Marconi Co The Ltd Printing using a flying spot scanner

Also Published As

Publication number Publication date
SE447425B (sv) 1986-11-10
CH648419A5 (de) 1985-03-15
JPH065413B2 (ja) 1994-01-19
NL8105890A (nl) 1983-01-03
SE8200434L (sv) 1982-12-06
DD202602A5 (de) 1983-09-21
NL193036B (nl) 1998-04-01
GB2100451B (en) 1985-07-03
CA1177411A (fr) 1984-11-06
SU1367868A3 (ru) 1988-01-15
DE3204581A1 (de) 1982-12-30
FR2507337A1 (fr) 1982-12-10
FR2507337B1 (fr) 1989-02-03
GB2100451A (en) 1982-12-22
JPS57211174A (en) 1982-12-24
US4344699A (en) 1982-08-17

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Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
V4 Discontinued because of reaching the maximum lifetime of a patent

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