CH231081A - Exposure time adjustment mechanism for curtain shutter. - Google Patents

Exposure time adjustment mechanism for curtain shutter.

Info

Publication number
CH231081A
CH231081A CH231081DA CH231081A CH 231081 A CH231081 A CH 231081A CH 231081D A CH231081D A CH 231081DA CH 231081 A CH231081 A CH 231081A
Authority
CH
Switzerland
Prior art keywords
adjustment mechanism
exposure time
time adjustment
curtain shutter
curtain
Prior art date
Application number
Other languages
French (fr)
Inventor
Boolsky-Bogopolsky Raphael
Original Assignee
Boolsky Bogopolsky Raphael
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 Boolsky Bogopolsky Raphael filed Critical Boolsky Bogopolsky Raphael
Publication of CH231081A publication Critical patent/CH231081A/en

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
    • G03B9/28—Roller blind or flexible plate
    • G03B9/32—Double blind
    • G03B9/34—Double blind with adjustable slot; with mechanism controlling relative movement of blinds to form slot

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
CH231081D 1943-03-02 1943-03-02 Exposure time adjustment mechanism for curtain shutter. CH231081A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH231081T 1943-03-02

Publications (1)

Publication Number Publication Date
CH231081A true CH231081A (en) 1944-02-29

Family

ID=4456936

Family Applications (1)

Application Number Title Priority Date Filing Date
CH231081D CH231081A (en) 1943-03-02 1943-03-02 Exposure time adjustment mechanism for curtain shutter.

Country Status (1)

Country Link
CH (1) CH231081A (en)

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