BE492440A - - Google Patents

Info

Publication number
BE492440A
BE492440A BE492440DA BE492440A BE 492440 A BE492440 A BE 492440A BE 492440D A BE492440D A BE 492440DA BE 492440 A BE492440 A BE 492440A
Authority
BE
Belgium
Prior art keywords
diaphragm
ring
aperture
adjustment
diaphragm according
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE492440A publication Critical patent/BE492440A/fr

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
    • G03B9/02—Diaphragms
    • G03B9/07—Diaphragms with means for presetting the diaphragm

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Diaphragms For Cameras (AREA)
BE492440D BE492440A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
BE492440A true BE492440A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=136686

Family Applications (1)

Application Number Title Priority Date Filing Date
BE492440D BE492440A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
BE (1) BE492440A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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