Pixel optimization for color

  • US 7,154,546 B1
  • Filed: 08/03/2001
  • Issued: 12/26/2006
  • Est. Priority Date: 08/07/2000
  • Status: Active Grant
First Claim
Patent Images

1. A macro pixel, comprising:

  • at least two color pixel elements of substantially equal pixel area, each color pixel element including a photoreceptor having a device geometry, responsive to receiving light, to generate an output signal indicative of an amount of light photons received, the device geometry of each photoreceptor comprising a size, a shape, a depth and a position;

    the photoreceptor of a first of the color pixel elements receiving a first color of light and having a first geometry and a responsivity to said first color of light that is a function of the first geometry;

    the photoreceptor of a second of the color pixel elements receiving a second color of light different from the first color of light and having a second geometry different from the first geometry and a responsivity to said second color of light that is a function of the second geometry; and

    the first geometry and the second geometry being such that the responsivity of the output signal of the first of the color pixel elements to the first color of light is a predetermined ratio of the responsivity of the output signal of the second of the color pixel elements to the second color of light.

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