BE813819A - Dispositif destine a reduire la luminosite d'une source lumineuse - Google Patents

Dispositif destine a reduire la luminosite d'une source lumineuse

Info

Publication number
BE813819A
BE813819A BE143287A BE143287A BE813819A BE 813819 A BE813819 A BE 813819A BE 143287 A BE143287 A BE 143287A BE 143287 A BE143287 A BE 143287A BE 813819 A BE813819 A BE 813819A
Authority
BE
Belgium
Prior art keywords
brightness
reduce
light source
device designed
designed
Prior art date
Application number
BE143287A
Other languages
English (en)
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
Publication of BE813819A publication Critical patent/BE813819A/fr

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
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/02—Illuminating scene
    • G03B15/06—Special arrangements of screening, diffusing, or reflecting devices, e.g. in studio

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
BE143287A 1973-04-18 1974-04-17 Dispositif destine a reduire la luminosite d'une source lumineuse BE813819A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732319799 DE2319799A1 (de) 1973-04-18 1973-04-18 Vorrichtung zum herabsetzen der helligkeit einer lichtquelle

Publications (1)

Publication Number Publication Date
BE813819A true BE813819A (fr) 1974-08-16

Family

ID=5878588

Family Applications (1)

Application Number Title Priority Date Filing Date
BE143287A BE813819A (fr) 1973-04-18 1974-04-17 Dispositif destine a reduire la luminosite d'une source lumineuse

Country Status (3)

Country Link
AT (1) AT348061B (fr)
BE (1) BE813819A (fr)
DE (1) DE2319799A1 (fr)

Also Published As

Publication number Publication date
AT348061B (de) 1979-01-25
ATA296374A (de) 1978-06-15
DE2319799A1 (de) 1974-11-07

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