Active and passive holographic optical based curved surface...

G - Physics – 02 – B

Patent

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Details

G02B 5/18 (2006.01) G02B 5/32 (2006.01) G03H 1/24 (2006.01)

Patent

CA 2316946

A curved surface element, for example a light bulb (16), ornament, or light pipe, has at least a portion thereof on its inner or outer surface (20) covered with a diffraction grating, for example, a holographic diffraction grating or mechanical diffraction grating, whereby such diffraction grating diffracts light to emit color to the observer. The diffraction grating can take the form of a holographic optical element (HOE) attached to the curved surface or a diffractive holographic optical pattern (HOP) embossed into the curved surface.

L'invention concerne un élément à surface courbe, par exemple une ampoule électrique (16), un ornement ou un conducteur de lumière, dont au moins une partie sur sa surface intérieure ou extérieure (20) est couverte d'un réseau de diffraction, par exemple un réseau de diffraction holographique ou un réseau de diffraction mécanique, ce réseau de diffraction diffractant une lumière pour émettre une couleur pour l'observateur. Le réseau de diffraction peut prendre la forme d'un élément optique holographique (HOE) fixé à la surface courbe ou d'un motif optique holographique (HOP) marqué en relief sur la surface courbe.

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