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Ets Bleriot L SA
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Ets Bleriot L SA
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Application filed by Ets Bleriot L SAfiledCriticalEts Bleriot L SA
Application grantedgrantedCritical
Publication of FR571536ApublicationCriticalpatent/FR571536A/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
F21V7/09—Optical design with a combination of different curvatures