Illumination device
AssigneeFoxsemicon Integrated Technology, Inc.
InventorsCHIH-MING LAI, CHIH-CHUNG TSAO
Life of this patent
Estimating the term…
Abstract
An illumination device includes a light-pervious substrate, a solid-state light source and at least one solar cell. The substrate has a bottom surface, a light incident surface adjacent to the bottom surface, and a light emitting surface opposite to the bottom surface. The solid-state light source is arranged on the light incident surface for emitting light into the substrate through the light incident surface. The at least one solar cell is arranged on the bottom surface of the substrate to absorb and convert solar energy into electric energy and supply the electric energy to the solid-state light source.
Claims13
An illumination device, comprising
- a light-pervious substrate, the substrate having a bottom surface, a light incident surface adjacent to the bottom surface, and a light emitting surface opposite to the bottom surface;
- a solid-state light source arranged on the light incident surface for emitting light into the substrate through the light incident surface;
- and
- at least one solar cell arranged on the bottom surface of the substrate to absorb and convert solar energy into electric energy and supply the electric energy to the solid-state light source.
An illumination device comprising
- a light-pervious plate having a first surface, a second surface at an opposite side of the plate to the first surface, and a peripheral side surface interconnected between the first surface and the second surface, the plate having a plurality of grooves defined in the second surface;
- a plurality of first point light sources arranged on the peripheral side surface for emitting light into the plate through the peripheral side surface;
- a plurality of second point light sources arranged on inner wall surfaces of the plate in the grooves for emitting light into the plate through the inner wall surfaces;
- and
- a plurality of spaced solar cells mounted on the first surface of the substrate for converting solar energy into electric energy, and supplying the electric energy to at least one of the first and second point light sources.
An illumination device comprising
- a light-pervious plate having a first surface, a second surface at an opposite side of the plate to the first surface, and a peripheral side surface interconnected between the first surface and the second surface;
- a plurality of point light sources arranged on the peripheral side surface for emitting light into the plate through the peripheral side surface, the point light sources surrounding the plate therein;
- and
- a plurality of spaced solar cells mounted on the first surface of the substrate for converting solar energy into electric energy, and supplying the electric energy to the point light sources.
Dependencies are inferred from the claim text.