IT1073990B - Ingranditore di microfilm con dispositivo per il comando automatico della quantita di luce - Google Patents

Ingranditore di microfilm con dispositivo per il comando automatico della quantita di luce

Info

Publication number
IT1073990B
IT1073990B IT7652776A IT5277676A IT1073990B IT 1073990 B IT1073990 B IT 1073990B IT 7652776 A IT7652776 A IT 7652776A IT 5277676 A IT5277676 A IT 5277676A IT 1073990 B IT1073990 B IT 1073990B
Authority
IT
Italy
Prior art keywords
light
automatic control
enlarger
microfilm
microfilm enlarger
Prior art date
Application number
IT7652776A
Other languages
English (en)
Original Assignee
Hoechst 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 Hoechst Ag filed Critical Hoechst Ag
Application granted granted Critical
Publication of IT1073990B publication Critical patent/IT1073990B/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
    • G03B27/72—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)
  • Projection-Type Copiers In General (AREA)
  • Control Of Exposure In Printing And Copying (AREA)
IT7652776A 1975-12-27 1976-12-24 Ingranditore di microfilm con dispositivo per il comando automatico della quantita di luce IT1073990B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7541572U DE7541572U (de) 1975-12-27 1975-12-27 Mikrofilmrueckvergroesserungsgeraet mit einer anordnung zur automatischen steuerung der lichtmenge

Publications (1)

Publication Number Publication Date
IT1073990B true IT1073990B (it) 1985-04-17

Family

ID=6659216

Family Applications (1)

Application Number Title Priority Date Filing Date
IT7652776A IT1073990B (it) 1975-12-27 1976-12-24 Ingranditore di microfilm con dispositivo per il comando automatico della quantita di luce

Country Status (11)

Country Link
US (1) US4110039A (it)
JP (1) JPS5282421A (it)
AT (1) AT350380B (it)
BR (1) BR7608657A (it)
DE (1) DE7541572U (it)
ES (1) ES454583A1 (it)
FR (1) FR2336701A1 (it)
GB (1) GB1558879A (it)
IT (1) IT1073990B (it)
NL (1) NL7614402A (it)
SE (1) SE7614454L (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JPS5918965A (ja) * 1982-07-23 1984-01-31 Fuji Xerox Co Ltd 複写機の露光量検出装置
US5138368A (en) * 1988-10-25 1992-08-11 Greyhawk Systems, Inc. Fabrication of printed wiring boards by projection imaging
KR100378492B1 (ko) * 1995-10-27 2004-05-20 삼성테크윈 주식회사 사진인화장치
US6909489B1 (en) 1998-03-12 2005-06-21 Sony Corporation Luminous source apparatus, image projecting apparatus and image projection converting apparatus
JPH11258693A (ja) * 1998-03-12 1999-09-24 Sony Corp 光源装置、画像投影装置および画像投影変換装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2701196A (en) * 1951-03-08 1955-02-01 Conrad Rudolf Michael Peter Photomechanical correction of photographic images
GB805891A (en) * 1954-04-21 1958-12-17 Agfa Camera Werk Ag Process and apparatus for producing photographic colour prints
US2794366A (en) * 1956-02-29 1957-06-04 Eastman Kodak Co Automatic exposure control system for photographic printer
US2995978A (en) * 1958-09-26 1961-08-15 Eastman Kodak Co Photographic printer circuit
US3241441A (en) * 1959-05-25 1966-03-22 Pako Corp Device and method for controlling exposure in a photographic color printer
US3293033A (en) * 1960-01-18 1966-12-20 Pako Corp Method for controlling explosure in a photographic color printer
US3523728A (en) * 1966-04-20 1970-08-11 Agfa Gevaert Ag Color printing apparatus
US3469914A (en) * 1966-11-04 1969-09-30 Charles Leslie Thomson Enlarger head for use with variable contrast paper
DE1497931C3 (de) * 1966-12-10 1975-10-23 Agfa-Gevaert Ag, 5090 Leverkusen Fotografisches Farbkopiergerät
JPS4940140A (it) * 1972-08-18 1974-04-15

Also Published As

Publication number Publication date
GB1558879A (en) 1980-01-09
DE7541572U (de) 1976-10-07
ES454583A1 (es) 1977-12-16
BR7608657A (pt) 1978-01-03
NL7614402A (nl) 1977-06-29
US4110039A (en) 1978-08-29
JPS5282421A (en) 1977-07-09
SE7614454L (sv) 1977-06-28
FR2336701A1 (fr) 1977-07-22
AT350380B (de) 1979-05-25
ATA967876A (de) 1978-10-15

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