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Homogenization system for an LED luminaire

  • US 10,371,956 B2
  • Filed: 10/05/2018
  • Issued: 08/06/2019
  • Est. Priority Date: 01/14/2013
  • Status: Active Grant
First Claim
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1. A luminaire comprising:

  • a head;

    a positioning mechanism, coupled to the head and configured to rotate the head in at least one axis; and

    a light source, coupled to the head and configured to emit a light beam, the light source comprising;

    a first array of light emitting diodes (LEDs), comprising first and second sets of LEDs, the first and second sets of LEDs producing light of first and second colors, respectively;

    a second array of LEDs, comprising third and fourth sets of LEDs, the third and fourth sets of LEDs producing light of third and fourth colors, respectively;

    a third array of LEDs, comprising a fifth set of LEDs producing light of a fifth color;

    a first dichroic filter, configured to combine light from the first array of LEDs with light from the second array of LEDs, wherein filter characteristics of the first dichroic filter are selected to maximize transmission of the light from the first and the third arrays of LEDs and to maximize reflection of the light from the second array of LEDs; and

    a second dichroic filter, configured to combine light from the first array of LEDs with light from the third array of LEDs, wherein filter characteristics of the second dichroic filter are selected to maximize transmission of the light from the first and second arrays of LEDs and to maximize reflection of the light from the third array of LEDs,wherein the light beam emitted by the light source comprises the light combined by the first dichroic filter and the light combined by the second dichroic filter.

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