FR1005018A - Perfectionnement aux verres dépolis utilisés en photographie - Google Patents

Perfectionnement aux verres dépolis utilisés en photographie

Info

Publication number
FR1005018A
FR1005018A FR1005018DA FR1005018A FR 1005018 A FR1005018 A FR 1005018A FR 1005018D A FR1005018D A FR 1005018DA FR 1005018 A FR1005018 A FR 1005018A
Authority
FR
France
Prior art keywords
photography
improvement
glasses used
frosted glasses
frosted
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
English (en)
Inventor
Rene Fulda
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 FR1005018A publication Critical patent/FR1005018A/fr
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)
FR1005018D 1949-11-25 1949-11-25 Perfectionnement aux verres dépolis utilisés en photographie Expired FR1005018A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1005018T 1949-11-25

Publications (1)

Publication Number Publication Date
FR1005018A true FR1005018A (fr) 1952-04-07

Family

ID=9564376

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1005018D Expired FR1005018A (fr) 1949-11-25 1949-11-25 Perfectionnement aux verres dépolis utilisés en photographie

Country Status (1)

Country Link
FR (1) FR1005018A (fr)

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