FR844535A - Advanced optical system for viewfinders and in particular for viewfinders of cameras - Google Patents

Advanced optical system for viewfinders and in particular for viewfinders of cameras

Info

Publication number
FR844535A
FR844535A FR844535DA FR844535A FR 844535 A FR844535 A FR 844535A FR 844535D A FR844535D A FR 844535DA FR 844535 A FR844535 A FR 844535A
Authority
FR
France
Prior art keywords
viewfinders
cameras
optical system
advanced optical
advanced
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.)
Kodak Pathe SA
Original Assignee
Kodak Pathe SA
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 Pathe SA filed Critical Kodak Pathe SA
Application granted granted Critical
Publication of FR844535A publication Critical patent/FR844535A/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)
FR844535D 1937-10-08 1938-10-08 Advanced optical system for viewfinders and in particular for viewfinders of cameras Expired FR844535A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US844535XA 1937-10-08 1937-10-08

Publications (1)

Publication Number Publication Date
FR844535A true FR844535A (en) 1939-07-26

Family

ID=22185055

Family Applications (1)

Application Number Title Priority Date Filing Date
FR844535D Expired FR844535A (en) 1937-10-08 1938-10-08 Advanced optical system for viewfinders and in particular for viewfinders of cameras

Country Status (1)

Country Link
FR (1) FR844535A (en)

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