DE227969C - - Google Patents

Info

Publication number
DE227969C
DE227969C DENDAT227969D DE227969DA DE227969C DE 227969 C DE227969 C DE 227969C DE NDAT227969 D DENDAT227969 D DE NDAT227969D DE 227969D A DE227969D A DE 227969DA DE 227969 C DE227969 C DE 227969C
Authority
DE
Germany
Prior art keywords
flaps
spring
ball
rotary flaps
open position
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.)
Active
Application number
DENDAT227969D
Other languages
German (de)
English (en)
Publication of DE227969C publication Critical patent/DE227969C/de
Active legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B9/00Exposure-making shutters; Diaphragms
    • G03B9/58Means for varying duration of "open" period of shutter

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Manipulator (AREA)
DENDAT227969D Active DE227969C (cs)

Publications (1)

Publication Number Publication Date
DE227969C true DE227969C (cs)

Family

ID=488390

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT227969D Active DE227969C (cs)

Country Status (1)

Country Link
DE (1) DE227969C (cs)

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