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DETECTION OF AN INCIDENT LIGHT DISTRIBUTION

  • US 20090160815A1
  • Filed: 12/19/2008
  • Published: 06/25/2009
  • Est. Priority Date: 12/20/2007
  • Status: Active Grant
First Claim
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1. A system for displaying image, comprising an incident light detecting device, the incident light detecting device detecting an incident light distribution and comprising:

  • an array of light sensors;

    a shadow casting element spaced above the light sensor array, with the shadow casting element between the incident light to be detected and the sensor array; and

    a processor for interpreting a cast shadow detected by the light sensor array thereby to derive information relating to the directional distribution of the incident light.

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