GB559140A - A photographic camera having an improved view finder system - Google Patents

A photographic camera having an improved view finder system

Info

Publication number
GB559140A
GB559140A GB18131/42A GB1813142A GB559140A GB 559140 A GB559140 A GB 559140A GB 18131/42 A GB18131/42 A GB 18131/42A GB 1813142 A GB1813142 A GB 1813142A GB 559140 A GB559140 A GB 559140A
Authority
GB
United Kingdom
Prior art keywords
camera
mirror
objective
exposure
finder system
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
GB18131/42A
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.)
Kodak Ltd
Original Assignee
Kodak Ltd
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 Kodak Ltd filed Critical Kodak Ltd
Publication of GB559140A publication Critical patent/GB559140A/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
    • G03B19/00—Cameras
    • G03B19/02—Still-picture cameras
    • G03B19/12—Reflex cameras with single objective and a movable reflector or a partly-transmitting mirror

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Viewfinders (AREA)

Abstract

559,140. Photographic cameras. KODAK, Ltd. Dec. 21, 1942, No. 18131. Convention date, Jan. 6. [Classes 97 (i) and 98 (i)] A concave reflector or other optical member serving as a collective and image forming member is carried by a movable member between the exposure frame and objective in a camera, and forms with the objective part of the view-finder system. In the camera shown, a concave reflector 16 carried by a truncated-conical shutter member 21 rotatably mounted on a pivot 23 forms, together with the objective, an image which after reflection from a mirror 17 at the front of the camera and inversion in a prism 18 is viewed through an eyepiece 19 in the rear wall of the camera. The mirror 17 is provided with a lens element 20. The shutter member 21 is formed with an exposure aperture 22, and on release operation of a trigger 14 is rotated through approximately a complete revolution to move this aperture past the exposure opening by means of a spring 25 operating through gears 32, 36. In a modification, the reflector 16 is replaced by a suitably formed portion of the metal shuttermember 21, and the mirror 17 has no lens element. The inverting prism 18 may be omitted.
GB18131/42A 1942-01-06 1942-12-21 A photographic camera having an improved view finder system Expired GB559140A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US559140XA 1942-01-06 1942-01-06

Publications (1)

Publication Number Publication Date
GB559140A true GB559140A (en) 1944-02-04

Family

ID=22000977

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18131/42A Expired GB559140A (en) 1942-01-06 1942-12-21 A photographic camera having an improved view finder system

Country Status (1)

Country Link
GB (1) GB559140A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2914997A (en) * 1956-10-03 1959-12-01 Polaroid Corp Combined range and view finder for cameras
US3672281A (en) * 1970-04-15 1972-06-27 Polaroid Corp Reflex camera

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2914997A (en) * 1956-10-03 1959-12-01 Polaroid Corp Combined range and view finder for cameras
US3672281A (en) * 1970-04-15 1972-06-27 Polaroid Corp Reflex camera

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