FR1212293A - Photocopying machine with automatic adjustment device for exposure time - Google Patents

Photocopying machine with automatic adjustment device for exposure time

Info

Publication number
FR1212293A
FR1212293A FR1212293DA FR1212293A FR 1212293 A FR1212293 A FR 1212293A FR 1212293D A FR1212293D A FR 1212293DA FR 1212293 A FR1212293 A FR 1212293A
Authority
FR
France
Prior art keywords
exposure time
adjustment device
automatic adjustment
photocopying machine
photocopying
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
Other languages
French (fr)
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.)
Agfa Gevaert NV
Original Assignee
Agfa AG
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 Agfa AG filed Critical Agfa AG
Application granted granted Critical
Publication of FR1212293A publication Critical patent/FR1212293A/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
    • G03B27/80—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)
FR1212293D 1957-10-23 1958-10-03 Photocopying machine with automatic adjustment device for exposure time Expired FR1212293A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1212293X 1957-10-23

Publications (1)

Publication Number Publication Date
FR1212293A true FR1212293A (en) 1960-03-23

Family

ID=7733256

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1212293D Expired FR1212293A (en) 1957-10-23 1958-10-03 Photocopying machine with automatic adjustment device for exposure time

Country Status (1)

Country Link
FR (1) FR1212293A (en)

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