WIDE BAND LIGHT SENSING PIXEL ARRAY HAVING WIDE BAND LIGHT SENSING PIXEL ARRAY

摘要

PURPOSE: A wide band light sensing pixel array is provided to generate image frames having wide band information efficiently. CONSTITUTION: A wide band light sensing pixel array includes a set of pixel groups(102). Each of the pixel groups includes a set of visible light pixels having a set of CMOS photodetectors and a corresponding set of monochromatic pixel light filters having different visible light bands. The visible light pixels include a first nominal sensitivity and generate a set of visible light output signals, each of which has an output value during a visible exposure period. The wide band light sensing pixel array further includes a near infrared light pixel and a control circuit(108). The near infrared light pixel includes a CMOS photodetector and a corresponding near infrared pixel light filter. The control circuit is coupled with the visible light output signals and with the near infrared output signal. The control circuit establishes a ratio of the infrared exposure period to the visible exposure period that is essentially equivalent to the ratio of the first nominal sensitivity to the second nominal sensitivity.