GB521491A - Improvements in or relating to view finders for photographic or cinematograph cameras - Google Patents

Improvements in or relating to view finders for photographic or cinematograph cameras

Info

Publication number
GB521491A
GB521491A GB26082/38A GB2608238A GB521491A GB 521491 A GB521491 A GB 521491A GB 26082/38 A GB26082/38 A GB 26082/38A GB 2608238 A GB2608238 A GB 2608238A GB 521491 A GB521491 A GB 521491A
Authority
GB
United Kingdom
Prior art keywords
frame
view
finder
photographic
relating
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
GB26082/38A
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.)
Zeiss Ikon AG
Original Assignee
Zeiss Ikon AG
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 Zeiss Ikon AG filed Critical Zeiss Ikon AG
Publication of GB521491A publication Critical patent/GB521491A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/14—Viewfinders

Landscapes

  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Viewfinders (AREA)

Abstract

521,491. View - finders for photographic cameras. ZEISS IKON AKT.-GES. Sept. 6, 1938, No. 26082. Convention date, Sept. 6, 1937. [Class 98 (i)] A view-finder for photographic cameras comprises opaque means 3 bounding a light-permeable frame 9 arranged directly in front of the outlook aperture, together with reflecting means to form an image of the frame at infinity to indicate the boundaries of the included view. In the finder shown, light passing through the frame 9 is reflected from a silvered frame-like arm 5 on the face of a glass block 4 to the semisilvered concave surface of the lens 2, which forms the image of the frame. The view-finder is shown combined with a range-finder having rotary wedges 7, 8 and a mirror base 6.
GB26082/38A 1937-09-06 1938-09-06 Improvements in or relating to view finders for photographic or cinematograph cameras Expired GB521491A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE521491X 1937-09-06

Publications (1)

Publication Number Publication Date
GB521491A true GB521491A (en) 1940-05-23

Family

ID=6551390

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26082/38A Expired GB521491A (en) 1937-09-06 1938-09-06 Improvements in or relating to view finders for photographic or cinematograph cameras

Country Status (1)

Country Link
GB (1) GB521491A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2994257A (en) * 1958-09-19 1961-08-01 Voigtlaender Ag Camera provided with built-in view finder and exposure meter
US2999416A (en) * 1957-10-02 1961-09-12 Voigtlaender Ag Photographic measuring finder
US3012464A (en) * 1958-03-12 1961-12-12 Voigtlaender Ag Measuring finder for photographic purposes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2999416A (en) * 1957-10-02 1961-09-12 Voigtlaender Ag Photographic measuring finder
US3012464A (en) * 1958-03-12 1961-12-12 Voigtlaender Ag Measuring finder for photographic purposes
US2994257A (en) * 1958-09-19 1961-08-01 Voigtlaender Ag Camera provided with built-in view finder and exposure meter

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