FR2258646A1 - Automatic exposure controller for reproduction camera - has drive moving photocell over image plane - Google Patents

Automatic exposure controller for reproduction camera - has drive moving photocell over image plane

Info

Publication number
FR2258646A1
FR2258646A1 FR7501386A FR7501386A FR2258646A1 FR 2258646 A1 FR2258646 A1 FR 2258646A1 FR 7501386 A FR7501386 A FR 7501386A FR 7501386 A FR7501386 A FR 7501386A FR 2258646 A1 FR2258646 A1 FR 2258646A1
Authority
FR
France
Prior art keywords
image plane
photocell
automatic exposure
drive moving
exposure controller
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.)
Granted
Application number
FR7501386A
Other languages
English (en)
French (fr)
Other versions
FR2258646B3 (enrdf_load_stackoverflow
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.)
KARLSTROM JOHAN
Original Assignee
KARLSTROM JOHAN
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 KARLSTROM JOHAN filed Critical KARLSTROM JOHAN
Publication of FR2258646A1 publication Critical patent/FR2258646A1/fr
Application granted granted Critical
Publication of FR2258646B3 publication Critical patent/FR2258646B3/fr
Granted 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
    • G03B27/80—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus in dependence upon automatic analysis of the original
    • 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)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
FR7501386A 1974-01-17 1975-01-17 Automatic exposure controller for reproduction camera - has drive moving photocell over image plane Granted FR2258646A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7400638A SE380635B (sv) 1974-01-17 1974-01-17 Anordning for automatisk reglering av exponeringstiden vid en reproduktionskamera eller liknande fotografisk apparat

Publications (2)

Publication Number Publication Date
FR2258646A1 true FR2258646A1 (en) 1975-08-18
FR2258646B3 FR2258646B3 (enrdf_load_stackoverflow) 1977-10-14

Family

ID=20319942

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7501386A Granted FR2258646A1 (en) 1974-01-17 1975-01-17 Automatic exposure controller for reproduction camera - has drive moving photocell over image plane

Country Status (4)

Country Link
DE (1) DE2461036A1 (enrdf_load_stackoverflow)
FR (1) FR2258646A1 (enrdf_load_stackoverflow)
IT (1) IT1028422B (enrdf_load_stackoverflow)
SE (1) SE380635B (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
IT1028422B (it) 1979-01-30
DE2461036A1 (de) 1975-07-24
SE380635B (sv) 1975-11-10
SE7400638L (enrdf_load_stackoverflow) 1975-09-19
FR2258646B3 (enrdf_load_stackoverflow) 1977-10-14

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Legal Events

Date Code Title Description
ST Notification of lapse