ARRAY OF LIGHT-DIFFUSING SUB-GRATINGS

The invention relates to a transparent substrate comprising, on its surface, a light-diffusing array comprising at least 10 juxtaposed sub-gratings of parallel lines of features, said features being separated by domains with a refractive index differing from that of the features, each sub-grating co...

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Bibliographic Details
Main Authors MULET, JEAN-PHILIPPE, MENEZ, LUDIVINE, GUERING, PAUL-HENRI
Format Patent
LanguageEnglish
Polish
Published 28.02.2019
Subjects
DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL
FIXED CONSTRUCTIONS
FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES
LADDERS
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:The invention relates to a transparent substrate comprising, on its surface, a light-diffusing array comprising at least 10 juxtaposed sub-gratings of parallel lines of features, said features being separated by domains with a refractive index differing from that of the features, each sub-grating comprising at least 20 repeated successive identical features equally spaced apart with a period p, said period varying non-monotonically from one edge of the sub-grating array to the other. This substrate redirects the light without iridescence in a daylighting application.
Bibliography:Application Number: PL19910087881T