FR922946A - Method and device for the sharp focus of a photographic or cinematographic camera - Google Patents

Method and device for the sharp focus of a photographic or cinematographic camera

Info

Publication number
FR922946A
FR922946A FR922946DA FR922946A FR 922946 A FR922946 A FR 922946A FR 922946D A FR922946D A FR 922946DA FR 922946 A FR922946 A FR 922946A
Authority
FR
France
Prior art keywords
photographic
sharp focus
cinematographic camera
cinematographic
camera
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
Johannes Bodingius
Gijsbertus Jacobus Van De Wiel
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 FR922946A publication Critical patent/FR922946A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR922946D 1946-02-26 1946-02-26 Method and device for the sharp focus of a photographic or cinematographic camera Expired FR922946A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR922946T 1946-02-26

Publications (1)

Publication Number Publication Date
FR922946A true FR922946A (en) 1947-06-23

Family

ID=9438372

Family Applications (1)

Application Number Title Priority Date Filing Date
FR922946D Expired FR922946A (en) 1946-02-26 1946-02-26 Method and device for the sharp focus of a photographic or cinematographic camera

Country Status (1)

Country Link
FR (1) FR922946A (en)

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