GB2136588B - A photographic enlarger - Google Patents

A photographic enlarger

Info

Publication number
GB2136588B
GB2136588B GB08306880A GB8306880A GB2136588B GB 2136588 B GB2136588 B GB 2136588B GB 08306880 A GB08306880 A GB 08306880A GB 8306880 A GB8306880 A GB 8306880A GB 2136588 B GB2136588 B GB 2136588B
Authority
GB
United Kingdom
Prior art keywords
photographic enlarger
enlarger
photographic
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
GB08306880A
Other versions
GB8306880D0 (en
GB2136588A (en
Inventor
Maurice Clifford Heard
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co Ltd
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 Marconi Co Ltd filed Critical Marconi Co Ltd
Priority to GB08306880A priority Critical patent/GB2136588B/en
Publication of GB8306880D0 publication Critical patent/GB8306880D0/en
Publication of GB2136588A publication Critical patent/GB2136588A/en
Application granted granted Critical
Publication of GB2136588B publication Critical patent/GB2136588B/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
    • G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
    • G03B27/73—Controlling exposure by variation of spectral composition, e.g. multicolor printers

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection-Type Copiers In General (AREA)
GB08306880A 1983-03-12 1983-03-12 A photographic enlarger Expired GB2136588B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08306880A GB2136588B (en) 1983-03-12 1983-03-12 A photographic enlarger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08306880A GB2136588B (en) 1983-03-12 1983-03-12 A photographic enlarger

Publications (3)

Publication Number Publication Date
GB8306880D0 GB8306880D0 (en) 1983-04-20
GB2136588A GB2136588A (en) 1984-09-19
GB2136588B true GB2136588B (en) 1986-12-03

Family

ID=10539477

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08306880A Expired GB2136588B (en) 1983-03-12 1983-03-12 A photographic enlarger

Country Status (1)

Country Link
GB (1) GB2136588B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5361551A (en) * 1990-01-04 1994-11-08 Joseph Post Ventilation spacer for roof construction

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1010577B (en) * 1974-03-13 1977-01-20 Durst Ag ANALYZER FOR COLOR PHOTOGRAPHIC PRINTING
US3937573A (en) * 1974-08-12 1976-02-10 Eastman Kodak Company Exposure control apparatus for photographic printers
DE2535034B2 (en) * 1975-08-06 1978-01-26 Agfa-Gevaert Ag, 5090 Leverkusen PHOTOGRAPHIC COLOR COPIER WITH A PHOTOELECTRICALLY CONTROLLED EXPOSURE CONTROL DEVICE
DE2747527A1 (en) * 1977-10-22 1979-04-26 Agfa Gevaert Ag METHOD AND DEVICE FOR DETERMINING THE QUANTITIES OF COPY LIGHT WHEN COPYING COLOR DOCUMENTS
JPS576869A (en) * 1980-06-16 1982-01-13 Noritsu Koki Kk Control system for quantity of light in printer

Also Published As

Publication number Publication date
GB8306880D0 (en) 1983-04-20
GB2136588A (en) 1984-09-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee