FR501844A - Photographic shutter - Google Patents

Photographic shutter

Info

Publication number
FR501844A
FR501844A FR501844A FR501844DA FR501844A FR 501844 A FR501844 A FR 501844A FR 501844 A FR501844 A FR 501844A FR 501844D A FR501844D A FR 501844DA FR 501844 A FR501844 A FR 501844A
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
FR501844A
Other languages
French (fr)
Inventor
Henri-Raymond Ponton
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.)
HENRI-RAYMOND PONTON
Original Assignee
HENRI-RAYMOND PONTON
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 HENRI-RAYMOND PONTON filed Critical HENRI-RAYMOND PONTON
Application granted granted Critical
Publication of FR501844A publication Critical patent/FR501844A/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
    • 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)
FR501844A 1918-11-26 1918-11-26 Photographic shutter Expired FR501844A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR501844T 1918-11-26

Publications (1)

Publication Number Publication Date
FR501844A true FR501844A (en) 1920-04-27

Family

ID=8905966

Family Applications (1)

Application Number Title Priority Date Filing Date
FR501844A Expired FR501844A (en) 1918-11-26 1918-11-26 Photographic shutter

Country Status (1)

Country Link
FR (1) FR501844A (en)

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