FR821693A - Perfectionnements aux obturateurs photographiques - Google Patents

Perfectionnements aux obturateurs photographiques

Info

Publication number
FR821693A
FR821693A FR821693DA FR821693A FR 821693 A FR821693 A FR 821693A FR 821693D A FR821693D A FR 821693DA FR 821693 A FR821693 A FR 821693A
Authority
FR
France
Prior art keywords
photographic shutters
shutters
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
English (en)
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.)
Kodak Pathe SA
Original Assignee
Kodak Pathe SA
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 Kodak Pathe SA filed Critical Kodak Pathe SA
Application granted granted Critical
Publication of FR821693A publication Critical patent/FR821693A/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
    • 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
    • G03B9/58—Means for varying duration of "open" period of shutter
    • 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
    • G03B9/64—Mechanism for delaying opening of shutter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Shutters For Cameras (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
FR821693D 1936-05-12 1937-05-10 Perfectionnements aux obturateurs photographiques Expired FR821693A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79342A US2090070A (en) 1936-05-12 1936-05-12 Photographic shutter with built-in shutter actuator

Publications (1)

Publication Number Publication Date
FR821693A true FR821693A (fr) 1937-12-10

Family

ID=22149919

Family Applications (1)

Application Number Title Priority Date Filing Date
FR821693D Expired FR821693A (fr) 1936-05-12 1937-05-10 Perfectionnements aux obturateurs photographiques

Country Status (4)

Country Link
US (1) US2090070A (fr)
DE (1) DE671436C (fr)
FR (1) FR821693A (fr)
GB (1) GB490061A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2831411A (en) * 1952-12-12 1958-04-22 Hans Deckel Photographic objective shutter with pre-timer
US2961935A (en) * 1957-03-23 1960-11-29 Gauthier Gmbh A Photographic shutter

Also Published As

Publication number Publication date
US2090070A (en) 1937-08-17
GB490061A (en) 1938-08-09
DE671436C (de) 1939-02-07

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