FR927463A - Improvements to cameras for enlargement, reproduction or photographic reduction - Google Patents

Improvements to cameras for enlargement, reproduction or photographic reduction

Info

Publication number
FR927463A
FR927463A FR927463DA FR927463A FR 927463 A FR927463 A FR 927463A FR 927463D A FR927463D A FR 927463DA FR 927463 A FR927463 A FR 927463A
Authority
FR
France
Prior art keywords
enlargement
cameras
reproduction
photographic reduction
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
Other languages
French (fr)
Inventor
Francis Jacob
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 filed Critical
Application granted granted Critical
Publication of FR927463A publication Critical patent/FR927463A/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
    • G03B27/722—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus when the reproduction scale is changed

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
FR927463D 1946-05-29 1946-05-29 Improvements to cameras for enlargement, reproduction or photographic reduction Expired FR927463A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR927463T 1946-05-29

Publications (1)

Publication Number Publication Date
FR927463A true FR927463A (en) 1947-10-30

Family

ID=9441078

Family Applications (1)

Application Number Title Priority Date Filing Date
FR927463D Expired FR927463A (en) 1946-05-29 1946-05-29 Improvements to cameras for enlargement, reproduction or photographic reduction

Country Status (1)

Country Link
FR (1) FR927463A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1121455B (en) * 1959-07-28 1962-01-04 Durst S A Photographic enlarger
DE1149238B (en) * 1959-07-01 1963-05-22 Alsacienne De Construction D A Device for producing enlargements of photographic negatives

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1149238B (en) * 1959-07-01 1963-05-22 Alsacienne De Construction D A Device for producing enlargements of photographic negatives
DE1121455B (en) * 1959-07-28 1962-01-04 Durst S A Photographic enlarger

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