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Wide band light sensing pixel array

  • US 20040256561A1
  • Filed: 06/17/2003
  • Published: 12/23/2004
  • Est. Priority Date: 06/17/2003
  • Status: Abandoned Application
First Claim
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1. A wide band light sensing pixel array comprising:

  • a set of pixel groups, each pixel group comprising a set of visible light pixels comprising a set of CMOS photodetectors and a corresponding set of monochromatic pixel light filters of different visible light bands, wherein the set of visible light pixels has a first nominal sensitivity and generates a set of visible light output signals, each of which has an output value during a visible exposure period, and a near infrared light pixel comprising a CMOS photodetector and a corresponding near infrared pixel light filter, wherein the near infrared light pixel has a second nominal sensitivity and generates a near infrared output signal having an output value during a near infrared exposure period; and

    a control circuit coupled to the set of visible light output signals and to the near infrared output signal, that 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.

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