IT1170936B - Dispositivo di illuminazione per produrre stampe striscia filtrante e lanterna per esso - Google Patents

Dispositivo di illuminazione per produrre stampe striscia filtrante e lanterna per esso

Info

Publication number
IT1170936B
IT1170936B IT8148382A IT4838281A IT1170936B IT 1170936 B IT1170936 B IT 1170936B IT 8148382 A IT8148382 A IT 8148382A IT 4838281 A IT4838281 A IT 4838281A IT 1170936 B IT1170936 B IT 1170936B
Authority
IT
Italy
Prior art keywords
lantern
prints
lighting device
filter strip
produce filter
Prior art date
Application number
IT8148382A
Other languages
English (en)
Other versions
IT8148382A0 (it
Inventor
Jack Howard Coote
Arthur Philip Jenkins
Original Assignee
Ciba Geigy Ag
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 Ciba Geigy Ag filed Critical Ciba Geigy Ag
Publication of IT8148382A0 publication Critical patent/IT8148382A0/it
Application granted granted Critical
Publication of IT1170936B publication Critical patent/IT1170936B/it

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • 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
    • G03B27/727—Optical projection devices wherein the contrast is controlled optically (e.g. uniform exposure, two colour exposure on variable contrast sensitive material)

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
IT8148382A 1980-05-02 1981-04-30 Dispositivo di illuminazione per produrre stampe striscia filtrante e lanterna per esso IT1170936B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8014655 1980-05-02
GB8028727 1980-09-05

Publications (2)

Publication Number Publication Date
IT8148382A0 IT8148382A0 (it) 1981-04-30
IT1170936B true IT1170936B (it) 1987-06-03

Family

ID=26275397

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8148382A IT1170936B (it) 1980-05-02 1981-04-30 Dispositivo di illuminazione per produrre stampe striscia filtrante e lanterna per esso

Country Status (3)

Country Link
US (1) US4368974A (it)
DE (1) DE3116858A1 (it)
IT (1) IT1170936B (it)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0612402B2 (ja) * 1985-11-05 1994-02-16 コニカ株式会社 カラー複写機
US4933754A (en) * 1987-11-03 1990-06-12 Ciba-Geigy Corporation Method and apparatus for producing modified photographic prints
DE59308787D1 (de) * 1993-08-25 1998-08-20 Gretag Imaging Ag Belichtungsstation für ein fotografisches Kopiergerät
US5455655A (en) * 1994-04-22 1995-10-03 Hicks; Ray Lamphouse for use with photographic printer
US5610687A (en) * 1994-12-08 1997-03-11 Eastman Kodak Company System and method for fade and dissolve exposure profile control in a motion picture printer
US6687063B1 (en) * 1999-11-18 2004-02-03 Martin Professional A/S Optical system for creating colored fields of light and components therefor
FR3000228B1 (fr) * 2012-12-20 2015-12-18 Freebox Film filtre pour ecran, dispositif et procede de fabrication associes
EP3940436A1 (en) 2016-02-15 2022-01-19 Leica Instruments (Singapore) Pte. Ltd. Illumination filter system and observation system for a multispectral fluorescence microscope, multispectral fluorescence microscope, and microscopying method
EP3251578A1 (en) * 2016-05-30 2017-12-06 Leica Instruments (Singapore) Pte. Ltd. Medical device for the observation of a partly fluorescent object, using a filter system with a transmission window
EP3457023B1 (en) * 2017-09-13 2020-03-04 Harman Professional Denmark ApS Color filter pair with comb-like filter characteristics having non-parallel teeth

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734435A (en) * 1956-02-14 Filter
DE936843C (de) * 1953-02-21 1955-12-22 David Samuel Cronsioe Verfahren und Vorrichtung zur Abpassung der Farbtiefe bei photographischen Farbfiltern
US3089386A (en) * 1958-07-25 1963-05-14 Eastman Kodak Co Method of controlling the spectral composition of a light source
DE1158362B (de) * 1961-06-28 1963-11-28 Leitz Ernst Gmbh Verfahren und Vorrichtung zur Belichtungsregelung fuer mikrophotographische Aufnahmen
CH466023A (de) * 1964-11-10 1968-11-30 Veit Anton Verfahren und Vorrichtung zum Ausgleich von Farbverfälschungen beim Kopieren und Vergrössern von transparenten Farbvorlagen
GB1206401A (en) * 1966-12-05 1970-09-23 Pavelle Ltd Improvements in or relating to colour correction filters in or for photographic colour printing or enlarging apparatus
DE1572236A1 (de) * 1967-04-26 1970-01-02 Agfa Gevaert Ag Vorrichtung zur Steuerung der Belichtung eines Kopiermaterials
FR2188850A5 (it) * 1972-06-01 1974-01-18 Coquin Jean
DE2321002A1 (de) * 1973-04-26 1974-11-14 Agfa Gevaert Ag Vorrichtung zur belichtung von probebelichtungsfilmen

Also Published As

Publication number Publication date
US4368974A (en) 1983-01-18
IT8148382A0 (it) 1981-04-30
DE3116858A1 (de) 1982-01-28

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