IT1095283B - Perfezionamenti agli apparecchi per la riproduzione fotografica di documenti trasparenti - Google Patents

Perfezionamenti agli apparecchi per la riproduzione fotografica di documenti trasparenti

Info

Publication number
IT1095283B
IT1095283B IT24086/78A IT2408678A IT1095283B IT 1095283 B IT1095283 B IT 1095283B IT 24086/78 A IT24086/78 A IT 24086/78A IT 2408678 A IT2408678 A IT 2408678A IT 1095283 B IT1095283 B IT 1095283B
Authority
IT
Italy
Prior art keywords
improvement
equipment
photographic reproduction
transparent documents
documents
Prior art date
Application number
IT24086/78A
Other languages
English (en)
Other versions
IT7824086A0 (it
Original Assignee
Anvar
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 Anvar filed Critical Anvar
Publication of IT7824086A0 publication Critical patent/IT7824086A0/it
Application granted granted Critical
Publication of IT1095283B publication Critical patent/IT1095283B/it

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
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/54—Lamp housings; Illuminating means
    • G03B27/545—Lamp housings; Illuminating means for enlargers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Lenses (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Projection Apparatus (AREA)
IT24086/78A 1977-06-03 1978-05-31 Perfezionamenti agli apparecchi per la riproduzione fotografica di documenti trasparenti IT1095283B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7716947A FR2393338A1 (fr) 1977-06-03 1977-06-03 Perfectionnements aux appareils de reproduction photographique de documents transparents

Publications (2)

Publication Number Publication Date
IT7824086A0 IT7824086A0 (it) 1978-05-31
IT1095283B true IT1095283B (it) 1985-08-10

Family

ID=9191622

Family Applications (1)

Application Number Title Priority Date Filing Date
IT24086/78A IT1095283B (it) 1977-06-03 1978-05-31 Perfezionamenti agli apparecchi per la riproduzione fotografica di documenti trasparenti

Country Status (6)

Country Link
US (1) US4229097A (it)
EP (1) EP0000450B1 (it)
JP (1) JPS5417724A (it)
DE (1) DE2860556D1 (it)
FR (1) FR2393338A1 (it)
IT (1) IT1095283B (it)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4298275A (en) * 1980-01-07 1981-11-03 Xerox Corporation Radially varying transmission filter for wide angle copying device
DE3163692D1 (en) * 1980-01-07 1984-06-28 Xerox Corp Method and apparatus for compensating for illumination defects in an optical system
US4298274A (en) * 1980-01-07 1981-11-03 Rees James D Variable density filter for a multi-magnification copying device
US4445774A (en) * 1982-04-30 1984-05-01 Xerox Corporation Document imaging system with improved exposure uniformity at image plane
US5014086A (en) * 1989-03-31 1991-05-07 E. I. Du Pont De Nemours And Company Adjustable dot gain simulation for color proofing
EP0586771B1 (de) * 1992-09-09 1998-04-08 Gretag Imaging Ag Beleuchtungssystem für fotografische Kopiergeräte
US5461456A (en) * 1992-11-24 1995-10-24 General Signal Corporation Spatial uniformity varier for microlithographic illuminator
DE10046353A1 (de) * 2000-09-19 2002-04-11 Agfa Gevaert Ag Beleuchtungseinrichtung zum Beleuchten einer transparenten Bildvorlage
DE102004059951A1 (de) * 2004-08-17 2006-02-23 Giesecke & Devrient Gmbh Vorrichtung zur Untersuchung von Dokumenten
DE602007003397D1 (de) 2006-03-29 2010-01-07 Nippon Catalytic Chem Ind Verfahren zur Herstellung von wasserabsorbierendem Polyacrylsäure (Salz)-Harz

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1021016A (fr) * 1950-06-27 1953-02-13 Agrandisseur à correction de contraste
DE1225041B (de) * 1964-07-16 1966-09-15 Multiblitz Geraete Dr Ing D A Vorrichtung zur photographischen Belichtung, vorzugsweise fuer Vergroesserungsgeraete
US3834813A (en) * 1970-10-15 1974-09-10 Haggar Co Diazo printing system
US3922085A (en) * 1974-08-22 1975-11-25 Tamarack Scient Co Inc Illuminator for microphotography
CH597618A5 (it) * 1975-12-02 1978-04-14 Zelacolor Syst

Also Published As

Publication number Publication date
FR2393338B1 (it) 1980-05-23
DE2860556D1 (en) 1981-04-16
JPS5417724A (en) 1979-02-09
EP0000450A1 (fr) 1979-01-24
US4229097A (en) 1980-10-21
IT7824086A0 (it) 1978-05-31
FR2393338A1 (fr) 1978-12-29
EP0000450B1 (fr) 1981-03-25

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