FR720260A - Obturateur photographique - Google Patents

Obturateur photographique

Info

Publication number
FR720260A
FR720260A FR720260DA FR720260A FR 720260 A FR720260 A FR 720260A FR 720260D A FR720260D A FR 720260DA FR 720260 A FR720260 A FR 720260A
Authority
FR
France
Prior art keywords
photographic shutter
photographic
shutter
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
English (en)
Inventor
Alfred Gauthier
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 FR720260A publication Critical patent/FR720260A/fr
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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/08—Shutters
    • G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane
    • G03B9/18—More than two members
    • G03B9/22—More than two members each moving in one direction to open and then in opposite direction to close, e.g. iris type

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR720260D 1930-07-14 1931-07-13 Obturateur photographique Expired FR720260A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE720260X 1930-07-14

Publications (1)

Publication Number Publication Date
FR720260A true FR720260A (fr) 1932-02-17

Family

ID=1544786

Family Applications (1)

Application Number Title Priority Date Filing Date
FR720260D Expired FR720260A (fr) 1930-07-14 1931-07-13 Obturateur photographique

Country Status (1)

Country Link
FR (1) FR720260A (fr)

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