Patent ID: 8633431

Claim:
An image sensor, comprising: a pixel group, which comprises: a detecting circuit configured to accumulate charges; a first photo diode configured to convert a first color component and first non-visible light component into charges; a first active transfer transistor configured to transfer the converted charges of the first photo diode to the detecting circuit according to a received first active transfer signal; a second photo diode configured to convert a second color component and second non-visible light component into charges; and a second active transfer transistor configured to transfer the converted charges of the second photo diode to the detecting circuit according to a received second active transfer signal, wherein charges converted from the first color component and the second color component are transferred to the detecting circuit within a first time period, and charges converted from the first non-visible light component and second non-visible light component are transferred to the detecting circuit within a second time period, wherein, in the first time period, the first active transfer signal becomes active prior to the second active transfer signal becoming active, and wherein, in the second time period, the first active transfer signal and the second active transfer signal become active at a same time.