SE447850B - Reproduktionskamera med ljusdempare - Google Patents

Reproduktionskamera med ljusdempare

Info

Publication number
SE447850B
SE447850B SE8205652A SE8205652A SE447850B SE 447850 B SE447850 B SE 447850B SE 8205652 A SE8205652 A SE 8205652A SE 8205652 A SE8205652 A SE 8205652A SE 447850 B SE447850 B SE 447850B
Authority
SE
Sweden
Prior art keywords
dimmer
light
reproduction camera
constant
straight lines
Prior art date
Application number
SE8205652A
Other languages
English (en)
Swedish (sv)
Other versions
SE8205652D0 (sv
SE8205652L (sv
Inventor
I J Magin
E K Nelson
Original Assignee
Itek Graphix Corp
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 Itek Graphix Corp filed Critical Itek Graphix Corp
Publication of SE8205652D0 publication Critical patent/SE8205652D0/xx
Publication of SE8205652L publication Critical patent/SE8205652L/
Publication of SE447850B publication Critical patent/SE447850B/sv

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
    • G03B27/62—Holders for the original
    • G03B27/6207—Holders for the original in copying cameras

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Projection-Type Copiers In General (AREA)
  • Optical Filters (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Image Input (AREA)
SE8205652A 1981-10-05 1982-10-04 Reproduktionskamera med ljusdempare SE447850B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/308,329 US4387985A (en) 1981-10-05 1981-10-05 Unique copyboard having unique light attenuator

Publications (3)

Publication Number Publication Date
SE8205652D0 SE8205652D0 (sv) 1982-10-04
SE8205652L SE8205652L (sv) 1983-04-06
SE447850B true SE447850B (sv) 1986-12-15

Family

ID=23193550

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8205652A SE447850B (sv) 1981-10-05 1982-10-04 Reproduktionskamera med ljusdempare

Country Status (10)

Country Link
US (1) US4387985A (fr)
JP (1) JPS5872110A (fr)
BE (1) BE894583A (fr)
CA (1) CA1179176A (fr)
DE (1) DE3236490A1 (fr)
FR (1) FR2514158B1 (fr)
GB (1) GB2107888B (fr)
IT (1) IT1152684B (fr)
NL (1) NL8203869A (fr)
SE (1) SE447850B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3430932A1 (de) * 1984-08-22 1986-03-06 Polychrome GmbH, 3360 Osterode Belichtungseinheit fuer druckplatten-kopiergeraet
WO1987005408A1 (fr) * 1986-02-28 1987-09-11 Chesley F. Carlson Company Lumiere de test
US5024512A (en) * 1986-07-18 1991-06-18 American Photo Systems, Inc. Microfilm reader with microfilm and reticle images provided to each of two binocular eyepieces
US4912505A (en) * 1989-03-23 1990-03-27 The Mead Corporation Contrast control device for a slit-type copier exposure system
CA2153210A1 (fr) * 1995-06-30 1996-12-31 C. Rex Welsh Appareil et methode d'acquisition informatisee de radiographies

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB414164A (en) * 1933-03-10 1934-08-02 Charles Arnold Barron Improvements in or relating to apparatus for the photographic reproduction of drawings and the like
US2384578A (en) * 1943-03-10 1945-09-11 Bausch & Lomb Optical element
NL6410904A (fr) * 1963-10-10 1965-04-12
CH405752A (de) * 1963-11-05 1966-01-15 Alos Ag Einrichtung zum gleichmässigen Ausleuchten einer Fläche, insbesondere für Reproduktionszwecke, sowie Verfahren zur Herstellung der Einrichtung
US3375752A (en) * 1965-02-19 1968-04-02 Itek Corp Copyboard lighting system
US3519346A (en) * 1968-05-28 1970-07-07 Itek Corp Method of producing photographic negatives and prints
US4059357A (en) * 1976-04-02 1977-11-22 Beckman Instruments, Inc. Densitometer calibrated reference standard
US4260256A (en) * 1978-11-17 1981-04-07 Eastman Kodak Company Apparatus for measuring illuminance
DE7933777U1 (de) * 1979-11-30 1980-04-24 Dr. Boeger Duplomat Apparate Kg (Gmbh & Co), 2000 Wedel Unterlichtkasten fuer reproduktionskameras

Also Published As

Publication number Publication date
DE3236490A1 (de) 1983-04-21
NL8203869A (nl) 1983-05-02
GB2107888B (en) 1984-10-24
SE8205652D0 (sv) 1982-10-04
GB2107888A (en) 1983-05-05
IT1152684B (it) 1987-01-07
US4387985A (en) 1983-06-14
IT8223604A0 (it) 1982-10-04
FR2514158B1 (fr) 1986-04-11
BE894583A (fr) 1983-04-05
JPS5872110A (ja) 1983-04-30
FR2514158A1 (fr) 1983-04-08
SE8205652L (sv) 1983-04-06
CA1179176A (fr) 1984-12-11

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