Patent ID: 8749007
Filing Date: 2014-06-10
Classification: G01J,H01L

Abstract:
1. A light sensor comprising: a substrate having a surface; a photodetector formed in the substrate proximate to the surface, the photodetector configured to detect light and to provide a signal in response thereto; at least one color filter disposed over the photodetector, the at least one color filter configured to pass light in a limited spectrum of wavelengths to the photodetector; and a transparent substrate disposed over the substrate, the transparent substrate including a diffuser configured to diffuse light incident on the diffuser and to pass the diffused light to the at least one color filter, wherein the at least one color filter includes a first color filter configured to filter visible light and to pass light having a first limited spectrum of wavelengths and a second color filter positioned over the first color filter and configured to filter visible light and to pass light having a second limited spectrum of wavelengths.