Patent ID: 7755016
Filing Date: 2010-07-13
Classification: H01L,H04N

Abstract:
1. A method, said method comprising: detecting a corresponding wavelength region of visible light with at least one visible light detection unit coupled to an image signal processing unit, each said visible light detection unit having no means for infrared light filtering and comprising a color filter adapted to transmit the corresponding wavelength region of visible light; detecting a wavelength region of infrared light with at least one infrared light detection unit coupled to the image signal processing unit, each said infrared light detection unit comprising a black filter, said black filter being separately disposed from each said color filter and having a transmittance of generally one for light having a wavelength of 780 nm and greater, and a transmittance of generally zero for light having a wavelength of less than 700 nm; and correcting, with the signal processing unit, a first signal received from the at least one visible light detection unit by subtracting a product from said first signal, said product resulting from multiplication of a second signal received from the at least one infrared light detection unit and a predetermined coefficient factor.