IT1150378B - Impianto d'illuminazione per apparecchio di riproduzione fotografica - Google Patents

Impianto d'illuminazione per apparecchio di riproduzione fotografica

Info

Publication number
IT1150378B
IT1150378B IT47687/82A IT4768782A IT1150378B IT 1150378 B IT1150378 B IT 1150378B IT 47687/82 A IT47687/82 A IT 47687/82A IT 4768782 A IT4768782 A IT 4768782A IT 1150378 B IT1150378 B IT 1150378B
Authority
IT
Italy
Prior art keywords
lighting system
reproduction equipment
photographic reproduction
photographic
equipment
Prior art date
Application number
IT47687/82A
Other languages
English (en)
Other versions
IT8247687A1 (it
IT8247687A0 (it
Inventor
Malcom George Brockwell
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 IT8247687A0 publication Critical patent/IT8247687A0/it
Publication of IT8247687A1 publication Critical patent/IT8247687A1/it
Application granted granted Critical
Publication of IT1150378B publication Critical patent/IT1150378B/it

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/05—Optical design plane
    • 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
    • G03B27/547—Lamp housings; Illuminating means for enlargers colour mixing heads

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
IT47687/82A 1981-02-02 1982-01-29 Impianto d'illuminazione per apparecchio di riproduzione fotografica IT1150378B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8103075 1981-02-02
GB8111884 1981-04-15

Publications (3)

Publication Number Publication Date
IT8247687A0 IT8247687A0 (it) 1982-01-29
IT8247687A1 IT8247687A1 (it) 1983-07-29
IT1150378B true IT1150378B (it) 1986-12-10

Family

ID=26278298

Family Applications (1)

Application Number Title Priority Date Filing Date
IT47687/82A IT1150378B (it) 1981-02-02 1982-01-29 Impianto d'illuminazione per apparecchio di riproduzione fotografica

Country Status (2)

Country Link
US (1) US4394717A (it)
IT (1) IT1150378B (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19842216A1 (de) * 1998-09-15 2000-04-06 Agfa Gevaert Ag Vorrichtung und Verfahren zum Aufspalten oder Zusammenführen von Licht
US6196699B1 (en) * 1999-03-31 2001-03-06 Philips Electronics North America Corp. Dual lamp illumination system and projection system incorporating same
JP3821622B2 (ja) * 1999-12-08 2006-09-13 シャープ株式会社 投射型表示装置
JP4049789B2 (ja) * 2003-03-28 2008-02-20 三洋電機株式会社 多灯式照明装置及び投写型映像表示装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE932880C (de) 1952-04-29 1955-09-12 Leitz Ernst Gmbh Geraet zum Vergroessern oder Kopieren farbiger Vorlagen
DE1774380U (de) 1958-07-17 1958-09-18 Microbox Appbau G M B H & Co Vorrichtung zur gleichmaessigen ausleuchtung der vorlage bei einer mikrofilmkamera.
DE1158823B (de) 1959-02-09 1963-12-05 Simmon Brothers Inc Beleuchtungseinrichtung fuer photographische Vergroesserungsgeraete
DE1447459A1 (de) 1964-11-24 1968-12-19 Agfa Gevaert Ag Beleuchtungssystem fuer fotografisches Farbkopiergeraet
US3425778A (en) * 1966-10-17 1969-02-04 Dennison Mfg Co Photocopy apparatus
GB1539468A (en) 1977-07-04 1979-01-31 Ciba Geigy Ag Enlarger head lamphouse for printing variable contrast photographic material

Also Published As

Publication number Publication date
IT8247687A1 (it) 1983-07-29
US4394717A (en) 1983-07-19
IT8247687A0 (it) 1982-01-29

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