FR979523A - Motor spring for camera shutter control - Google Patents

Motor spring for camera shutter control

Info

Publication number
FR979523A
FR979523A FR979523DA FR979523A FR 979523 A FR979523 A FR 979523A FR 979523D A FR979523D A FR 979523DA FR 979523 A FR979523 A FR 979523A
Authority
FR
France
Prior art keywords
shutter control
camera shutter
motor spring
spring
motor
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
Paul-Ferdinand Royet
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 FR979523A publication Critical patent/FR979523A/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
    • G03B9/58—Means for varying duration of "open" period of shutter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR979523D 1942-08-27 1942-08-27 Motor spring for camera shutter control Expired FR979523A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR979523T 1942-08-27

Publications (1)

Publication Number Publication Date
FR979523A true FR979523A (en) 1951-04-27

Family

ID=9521213

Family Applications (1)

Application Number Title Priority Date Filing Date
FR979523D Expired FR979523A (en) 1942-08-27 1942-08-27 Motor spring for camera shutter control

Country Status (1)

Country Link
FR (1) FR979523A (en)

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