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LED COLLIMATOR HAVING SPLINE SURFACES AND RELATED METHODS

  • US 20090128921A1
  • Filed: 11/15/2007
  • Published: 05/21/2009
  • Est. Priority Date: 11/15/2007
  • Status: Abandoned Application
First Claim
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1. A collimator for an LED light source, comprising:

  • an inner sidewall for receiving and refracting light generated by the LED light source;

    a first outer wall for receiving and reflecting the light refracted at the inner sidewall, the first outer wall comprising a spline reflective surface having a cross-sectional profile at least partially defined by a spline, the spline being a piecewise polynomial function including a first low-order polynomial and a second low-order polynomial different from the first low-order polynomial, the first and second low-order polynomials being selected to achieve substantial collimation of the light reflected from the spline reflective surface; and

    a second outer wall for receiving and transmitting the light reflected from the spline reflective surface.

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