FR856345A - 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
FR856345A
FR856345A FR856345DA FR856345A FR 856345 A FR856345 A FR 856345A FR 856345D A FR856345D A FR 856345DA FR 856345 A FR856345 A FR 856345A
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 FR856345A publication Critical patent/FR856345A/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)
FR856345D 1938-12-30 1939-04-22 Advanced optical system for viewfinders and in particular for viewfinders of cameras Expired FR856345A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US856345XA 1938-12-30 1938-12-30

Publications (1)

Publication Number Publication Date
FR856345A true FR856345A (en) 1940-06-11

Family

ID=22192927

Family Applications (1)

Application Number Title Priority Date Filing Date
FR856345D Expired FR856345A (en) 1938-12-30 1939-04-22 Advanced optical system for viewfinders and in particular for viewfinders of cameras

Country Status (1)

Country Link
FR (1) FR856345A (en)

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