Transparent illumination panel and method of manufacturing

摘要

A light diffuser panel for coupling to an optical element, includes a plurality of first type layers of a first type of material with a refractive index n1, and a plurality of second type layers of a second type of material with a different refractive index n2, wherein each of the first type layers and each of the second type layers are arranged to form a plurality of interface surfaces between alternating first type layers and second type layers, tilted at a plurality of angles with tilt axes that are parallel to a plane of the light diffuser panel, such that visible light from the optical element is transmitted through the light diffuser panel and the interface surfaces, and a portion of the visible light from the optical element is reflected out of the light diffuser panel at each of the interface surfaces.

主权项

1. A light diffuser panel for coupling to an optical element, comprising:
a plurality of first type layers comprising a first type of material with a refractive index n1; and a plurality of second type layers comprising a second type of material with a refractive index n2 different from the refractive index n1; and a polarization rotator plate; wherein each of the plurality of the first type layers and each of the plurality of the second type layers are arranged, such that each of the plurality of the first type layers is between two second type layers, to form a plurality of interface surfaces between alternating ones of the first type layers and the second type layers, the plurality of the interface surfaces are tilted at a plurality of angles respectively with a plurality of tilt axes that are parallel to a plane of the light diffuser panel, wherein visible light from the optical element is transmitted through the light diffuser panel and each of the plurality of the interface surfaces, and portions of the visible light from the optical element are reflected out of the light diffuser panel at each of the plurality of the interface surfaces and wherein the polarization rotator plate is configured to rotate light polarization of the visible light that has transmitted through at least one of the plurality of the interface surfaces.