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ARTUBO BRUNI
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ARTUBO BRUNI
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Application grantedgrantedCritical
Publication of FR398516ApublicationCriticalpatent/FR398516A/fr
F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
F21V7/00—Reflectors for light sources
F21V7/04—Optical design
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Engineering & Computer Science
(AREA)
General Engineering & Computer Science
(AREA)
FR398516D1908-06-091909-01-11Système d'éclairage à lumière diffusée pour salles de projections et similaires
ExpiredFR398516A
(fr)
Système de projection par réflexion de la lumière d'appareils d'éclairage, latéralement et vers le haut ou le bas, à volonté, dans des directions et à des distances variables