SE324504B - - Google Patents

Info

Publication number
SE324504B
SE324504B SE11652/69A SE1165269A SE324504B SE 324504 B SE324504 B SE 324504B SE 11652/69 A SE11652/69 A SE 11652/69A SE 1165269 A SE1165269 A SE 1165269A SE 324504 B SE324504 B SE 324504B
Authority
SE
Sweden
Prior art keywords
rollers
exposure
curtain
unwind
equalize
Prior art date
Application number
SE11652/69A
Inventor
L Dahlgren
Original Assignee
Hasselblad
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 Hasselblad filed Critical Hasselblad
Priority to SE11652/69A priority Critical patent/SE324504B/xx
Priority to US883747A priority patent/US3682073A/en
Priority to JP45005443A priority patent/JPS502805B1/ja
Priority to DE19702002925 priority patent/DE2002925C3/en
Publication of SE324504B publication Critical patent/SE324504B/xx

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)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Shutters For Cameras (AREA)

Abstract

A centrifugal coupling device for photographic cameras provided with a focal plane shutter of the curtain type for the purpose of providing for uniform exposure over the entire frame, the device is embodied in one of the pairs of rollers which roll and unwind the curtain portion and is arranged to equalize the variations in speed at which the rollers rotate at an exposure.
SE11652/69A 1969-08-21 1969-08-21 SE324504B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE11652/69A SE324504B (en) 1969-08-21 1969-08-21
US883747A US3682073A (en) 1969-08-21 1969-12-10 Centrifugal coupling means for photographic cameras provided with a roller-blind type focal plane shutter
JP45005443A JPS502805B1 (en) 1969-08-21 1970-01-22
DE19702002925 DE2002925C3 (en) 1969-08-21 1970-01-23 Centrifugal clutch for photographic cameras with a focal focal plane shutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE11652/69A SE324504B (en) 1969-08-21 1969-08-21

Publications (1)

Publication Number Publication Date
SE324504B true SE324504B (en) 1970-06-01

Family

ID=20294368

Family Applications (1)

Application Number Title Priority Date Filing Date
SE11652/69A SE324504B (en) 1969-08-21 1969-08-21

Country Status (4)

Country Link
US (1) US3682073A (en)
JP (1) JPS502805B1 (en)
DE (1) DE2002925C3 (en)
SE (1) SE324504B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4959630A (en) * 1972-10-06 1974-06-10
JPS563531U (en) * 1980-06-10 1981-01-13
JPS5765323U (en) * 1980-10-03 1982-04-19
US4466720A (en) * 1981-05-19 1984-08-21 Olympus Optical Co., Ltd. Focal-plane shutter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2218248A (en) * 1938-09-24 1940-10-15 Eastman Kodak Co Focal plane shutter construction
US2424439A (en) * 1945-05-17 1947-07-22 Fairchild Camera Instr Co Focal-plane shutter

Also Published As

Publication number Publication date
US3682073A (en) 1972-08-08
JPS502805B1 (en) 1975-01-29
DE2002925C3 (en) 1973-07-12
DE2002925B2 (en) 1972-12-28
DE2002925A1 (en) 1971-03-11

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