FR859182A - Clear viewfinder for mirror SLR cameras - Google Patents

Clear viewfinder for mirror SLR cameras

Info

Publication number
FR859182A
FR859182A FR859182DA FR859182A FR 859182 A FR859182 A FR 859182A FR 859182D A FR859182D A FR 859182DA FR 859182 A FR859182 A FR 859182A
Authority
FR
France
Prior art keywords
mirror
slr cameras
clear viewfinder
viewfinder
clear
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.)
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
Application granted granted Critical
Publication of FR859182A publication Critical patent/FR859182A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B13/00Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/18Focusing aids
    • G03B13/20Rangefinders coupled with focusing arrangements, e.g. adjustment of rangefinder automatically focusing camera

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR859182D 1939-02-17 1939-08-18 Clear viewfinder for mirror SLR cameras Expired FR859182A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE859182X 1939-02-17

Publications (1)

Publication Number Publication Date
FR859182A true FR859182A (en) 1940-12-12

Family

ID=6790053

Family Applications (1)

Application Number Title Priority Date Filing Date
FR859182D Expired FR859182A (en) 1939-02-17 1939-08-18 Clear viewfinder for mirror SLR cameras

Country Status (1)

Country Link
FR (1) FR859182A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1213233B (en) * 1961-03-17 1966-03-24 Rollei Werke Franke Heidecke Metal folding light shaft for the focusing screen of single lens reflex cameras

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1213233B (en) * 1961-03-17 1966-03-24 Rollei Werke Franke Heidecke Metal folding light shaft for the focusing screen of single lens reflex cameras

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