CH543752A - Device for supplying an exposure light source of a photographic enlarger - Google Patents

Device for supplying an exposure light source of a photographic enlarger

Info

Publication number
CH543752A
CH543752A CH983670A CH983670A CH543752A CH 543752 A CH543752 A CH 543752A CH 983670 A CH983670 A CH 983670A CH 983670 A CH983670 A CH 983670A CH 543752 A CH543752 A CH 543752A
Authority
CH
Switzerland
Prior art keywords
supplying
light source
exposure light
photographic enlarger
enlarger
Prior art date
Application number
CH983670A
Other languages
German (de)
Inventor
Luursema Meerten
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of CH543752A publication Critical patent/CH543752A/en

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)
  • Control Of Exposure In Printing And Copying (AREA)
  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
CH983670A 1969-07-02 1970-06-29 Device for supplying an exposure light source of a photographic enlarger CH543752A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6910114A NL6910114A (en) 1969-07-02 1969-07-02

Publications (1)

Publication Number Publication Date
CH543752A true CH543752A (en) 1973-10-31

Family

ID=19807362

Family Applications (1)

Application Number Title Priority Date Filing Date
CH983670A CH543752A (en) 1969-07-02 1970-06-29 Device for supplying an exposure light source of a photographic enlarger

Country Status (8)

Country Link
JP (1) JPS494327B1 (en)
AT (1) AT314974B (en)
BE (1) BE752765A (en)
CA (1) CA918228A (en)
CH (1) CH543752A (en)
FR (1) FR2053993A5 (en)
GB (1) GB1303349A (en)
NL (1) NL6910114A (en)

Also Published As

Publication number Publication date
GB1303349A (en) 1973-01-17
DE2030919B2 (en) 1976-07-01
CA918228A (en) 1973-01-02
JPS494327B1 (en) 1974-01-31
DE2030919A1 (en) 1971-01-14
FR2053993A5 (en) 1971-04-16
AT314974B (en) 1974-05-10
BE752765A (en) 1970-12-30
NL6910114A (en) 1971-01-05

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Legal Events

Date Code Title Description
PL Patent ceased