Patent ID: 8941898
Filing Date: 2015-01-27
Classification: H01L,H04N

Abstract:
1. A sensor IC comprising: a plurality of light receiving portions including a first light receiving portion that receives light of a first wavelength and a second light receiving portion that receives light of a second wavelength different from the first wavelength, the light receiving portions being arranged in a row along a primary scanning direction; a plurality of additional light receiving portions provided at different positions from said plurality of light receiving portions in a secondary scanning direction, the additional light receiving portions being arranged in a row along the primary scanning direction, the additional light receiving portions including a third light receiving portion that receives light of a third wavelength different from the first wavelength and the second wavelength; and a control circuit that outputs a first electric signal corresponding to light of the first wavelength received by the first light receiving portion, a second electric signal corresponding to light of the second wavelength received by the second light receiving portion, and a third electric signal corresponding to light of the third wavelength received by the third light receiving portion, wherein said plurality of light receiving portions include a plurality of first light receiving portions and a plurality of second light receiving portions, the first light receiving portions and the second light receiving portions being alternately arranged, said plurality of additional light receiving portions include a plurality of third light receiving portions and a plurality of fourth light receiving portions that receive light of a wavelength different from light of the third wavelength, the third light receiving portions and the fourth light receiving portions are alternately arranged, the fourth light receiving portions receive light of the first wavelength, the control circuit outputs a fourth electric signal corresponding to light of the first wavelength received by the fourth light receiving portions, each of the third light receiving portions is disposed at a same position as one of the first light receiving portions in the primary scanning direction, and each of the fourth light receiving portions is disposed at a same position as one of the second light receiving portions in the primary scanning direction.