FR451206A - Variable exposure time lens shutter with brake to slow down shutter travel - Google Patents

Variable exposure time lens shutter with brake to slow down shutter travel

Info

Publication number
FR451206A
FR451206A FR451206DA FR451206A FR 451206 A FR451206 A FR 451206A FR 451206D A FR451206D A FR 451206DA FR 451206 A FR451206 A FR 451206A
Authority
FR
France
Prior art keywords
shutter
brake
exposure time
slow down
travel
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)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Christian Bruns & Cie GmbH
Original Assignee
Christian Bruns & Cie GmbH
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 Christian Bruns & Cie GmbH filed Critical Christian Bruns & Cie GmbH
Application granted granted Critical
Publication of FR451206A publication Critical patent/FR451206A/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
    • G03B9/08—Shutters
    • G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane
    • G03B9/18—More than two members
    • G03B9/22—More than two members each moving in one direction to open and then in opposite direction to close, e.g. iris type

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR451206D 1912-08-01 1912-11-30 Variable exposure time lens shutter with brake to slow down shutter travel Expired FR451206A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE451206X 1912-08-01

Publications (1)

Publication Number Publication Date
FR451206A true FR451206A (en) 1913-04-14

Family

ID=1491564

Family Applications (1)

Application Number Title Priority Date Filing Date
FR451206D Expired FR451206A (en) 1912-08-01 1912-11-30 Variable exposure time lens shutter with brake to slow down shutter travel

Country Status (1)

Country Link
FR (1) FR451206A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE748866C (en) * 1937-02-24 1944-11-10 Roll film camera
DE757798C (en) * 1936-12-05 1952-05-08 Friedrich Deckel Praez S Mecha Photographic fastener

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE757798C (en) * 1936-12-05 1952-05-08 Friedrich Deckel Praez S Mecha Photographic fastener
DE748866C (en) * 1937-02-24 1944-11-10 Roll film camera

Similar Documents

Publication Publication Date Title
FR451206A (en) Variable exposure time lens shutter with brake to slow down shutter travel
FR444102A (en) Condensation water trap
FR438133A (en) Lens shutter
FR458586A (en) Panoramic cinematography
FR452403A (en) Camera retouching images
FR439230A (en) Sapper's Beche
FR420229A (en) Artificial fins for bathers
FR451907A (en) Improvements in cinematographic projection devices that themselves produce their light
FR18104E (en) Girl's corset-bra
CH61215A (en) Lighting controller for photographic shots
FR439085A (en) New louvered stable window
FR440191A (en) Acetylene trap lamp
FR466607A (en) Lantern "storm"
FR460298A (en) Teaching cinematograph
CH62149A (en) Cinematographic projection device
FR442633A (en) Panoramic camera
CH81457A (en) Teaching cinematograph
FR478428A (en) Improvements to moving image projection devices
FR478429A (en) Improvements to moving image projection devices
FR456592A (en) light diffusing screen
FR428044A (en) Improvements to photographic, geodetic or other camera supports
FR414400A (en) Device used to cut the so-called "modillon" fireplace wall light
FR446519A (en) Improvements to escape movements
FR828100A (en) Viewfinder placed near the lens shutter
CH71123A (en) Light-tight shutter