Patent ID: 7586528
Filing Date: 2009-09-08
Classification: H01L,H04N

Abstract:
1. A color sensor comprising: light reception elements that generate color signals corresponding to stimulus values of colors in an RGB color system, the stimulus values of colors comprising a stimulus value of blue (B) and a stimulus value of red (R), wherein the light reception elements comprise a first light reception element that generates a red (R) color signal corresponding to the stimulus values of red (R); and a first portion that adds a signal corresponding to the stimulus value of blue (B) as a positive sensitivity component to one of: the first light reception element; and a red (R) color signal generated by the first light reception element; wherein the light reception elements further comprises: a light reception element that generates a blue (B) color signal corresponding to the stimulus values of blue (B), wherein an output of the light reception element that generates a blue (B) color signal is added to one of: the first light reception element and the red (R) color signal, to produce an altered red signal and further comprising: a fourth light reception element having spectral sensitivity to a spectral area (BG) of intermediate color of blue (B) and green (G) in the RGB color system; and a second portion that performs subtraction processing of a signal generated in the fourth light reception element from the red color signal (R) at a ratio based on a preset factor, before or after the blue color signal is added; wherein a modified red color signal (R′), modified by both the addition of the blue (B) color signal and the subtraction of the signal generated in the fourth light reception element, is formed.