FR987515A - Focusing device for photographic camera - Google Patents

Focusing device for photographic camera

Info

Publication number
FR987515A
FR987515A FR987515DA FR987515A FR 987515 A FR987515 A FR 987515A FR 987515D A FR987515D A FR 987515DA FR 987515 A FR987515 A FR 987515A
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
Rene Royer
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 FR987515A publication Critical patent/FR987515A/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
    • G03B13/20—Rangefinders coupled with focusing arrangements, e.g. adjustment of rangefinder automatically focusing camera

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR987515D 1949-03-31 1949-03-31 Focusing device for photographic camera Expired FR987515A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR987515T 1949-03-31

Publications (1)

Publication Number Publication Date
FR987515A true FR987515A (en) 1951-08-14

Family

ID=9538948

Family Applications (1)

Application Number Title Priority Date Filing Date
FR987515D Expired FR987515A (en) 1949-03-31 1949-03-31 Focusing device for photographic camera

Country Status (1)

Country Link
FR (1) FR987515A (en)

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