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FR530496A - Improvements in apparatus for treating light rays and the like - Google Patents

Improvements in apparatus for treating light rays and the like

Info

Publication number
FR530496A
FR530496A FR530496DA FR530496A FR 530496 A FR530496 A FR 530496A FR 530496D A FR530496D A FR 530496DA FR 530496 A FR530496 A FR 530496A
Authority
FR
France
Prior art keywords
light rays
treating light
treating
rays
light
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
Alfred Ord Tate
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 FR530496A publication Critical patent/FR530496A/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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/08—Shutters
    • G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR530496D 1921-02-03 1921-02-03 Improvements in apparatus for treating light rays and the like Expired FR530496A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR530496T 1921-02-03

Publications (1)

Publication Number Publication Date
FR530496A true FR530496A (en) 1921-12-23

Family

ID=8923317

Family Applications (1)

Application Number Title Priority Date Filing Date
FR530496D Expired FR530496A (en) 1921-02-03 1921-02-03 Improvements in apparatus for treating light rays and the like

Country Status (1)

Country Link
FR (1) FR530496A (en)

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