FR1001195A - Focusing device for photographic camera - Google Patents

Focusing device for photographic camera

Info

Publication number
FR1001195A
FR1001195A FR1001195DA FR1001195A FR 1001195 A FR1001195 A FR 1001195A FR 1001195D A FR1001195D A FR 1001195DA FR 1001195 A FR1001195 A FR 1001195A
Authority
FR
France
Prior art keywords
focusing device
photographic camera
photographic
camera
focusing
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)
Inventor
Pierre-Gaston-Lucien Appollot
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 filed Critical
Application granted granted Critical
Publication of FR1001195A publication Critical patent/FR1001195A/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
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/18—Focusing aids
    • G03B13/24—Focusing screens
    • G03B13/26—Focusing screens with magnifiers for inspecting image formed on screen

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR1001195D 1946-03-22 1946-03-22 Focusing device for photographic camera Expired FR1001195A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1001195T 1946-03-22

Publications (1)

Publication Number Publication Date
FR1001195A true FR1001195A (en) 1952-02-20

Family

ID=9560964

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1001195D Expired FR1001195A (en) 1946-03-22 1946-03-22 Focusing device for photographic camera

Country Status (1)

Country Link
FR (1) FR1001195A (en)

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