GB1145774A - Illuminating apparatus for photographic printers, enlargers and the like - Google Patents

Illuminating apparatus for photographic printers, enlargers and the like

Info

Publication number
GB1145774A
GB1145774A GB2041166A GB2041166A GB1145774A GB 1145774 A GB1145774 A GB 1145774A GB 2041166 A GB2041166 A GB 2041166A GB 2041166 A GB2041166 A GB 2041166A GB 1145774 A GB1145774 A GB 1145774A
Authority
GB
United Kingdom
Prior art keywords
chamber
light
copied
rests
focus
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB2041166A
Inventor
Alfred Simmon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Simmon Brothers Inc
Original Assignee
Simmon Brothers Inc
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 Simmon Brothers Inc filed Critical Simmon Brothers Inc
Priority to GB2041166A priority Critical patent/GB1145774A/en
Publication of GB1145774A publication Critical patent/GB1145774A/en
Expired legal-status Critical Current

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
    • G03B27/547—Lamp housings; Illuminating means for enlargers colour mixing heads

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection-Type Copiers In General (AREA)

Abstract

1,145,774. Photographic copying apparatus. SIMMON BROS. Inc. May 9, 1966, No. 20411/66. Heading G2A. The invention is concerned with the type of copying apparatus in which light from one or more sources 13 is mixed in an integrating chamber 17, passing out through an exit window 18 to illuminate the negative which is being copied. A number of chambers 17 are provided, of different sizes, and having different sizes of exit windows, and these are interchangeable in the apparatus, so that the chamber may be chosen which is the most suitable for the particular size of negative to be copied. In the form shown, there are two light sources 13, each situated at one focus of an elliptical reflector 14, the other focus being at the entrance window 16 of the chamber 17. Colour filters and ultraviolet and infrared filters, 23-27, can be interposed in the light path when the apparatus is used for colour printing. The filter assembly housings 22, and the lamp and reflector assemblies 14, are slidably mounted on tracks (8, 9 Fig. 1 not shown) and can be secured thereto after the selected chamber 17 has been mounted in position. A system of grooves and ridges 37, 38 form light locks. The chamber 17 rests on a bottom plate 39 which has a rectangular exit window, and rests on a sheet 42 of opalized plastic or glass.
GB2041166A 1966-05-09 1966-05-09 Illuminating apparatus for photographic printers, enlargers and the like Expired GB1145774A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2041166A GB1145774A (en) 1966-05-09 1966-05-09 Illuminating apparatus for photographic printers, enlargers and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2041166A GB1145774A (en) 1966-05-09 1966-05-09 Illuminating apparatus for photographic printers, enlargers and the like

Publications (1)

Publication Number Publication Date
GB1145774A true GB1145774A (en) 1969-03-19

Family

ID=10145513

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2041166A Expired GB1145774A (en) 1966-05-09 1966-05-09 Illuminating apparatus for photographic printers, enlargers and the like

Country Status (1)

Country Link
GB (1) GB1145774A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2246427A (en) * 1990-07-25 1992-01-29 Medical Res Council Apparatus tar and a method of obtaining an opthalmic tint

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2246427A (en) * 1990-07-25 1992-01-29 Medical Res Council Apparatus tar and a method of obtaining an opthalmic tint
GB2246427B (en) * 1990-07-25 1994-05-04 Medical Res Council Apparatus for and a method of obtaining an opthalmic tint

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