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Solid state steerable light

  • US 10,427,591 B2
  • Filed: 10/16/2015
  • Issued: 10/01/2019
  • Est. Priority Date: 01/03/2012
  • Status: Active Grant
First Claim
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1. A light assembly for generating a light pattern, the assembly comprising:

  • a a first bank of LEDs and a second bank of LEDs mounted in a line, each LED in the first bank and the second bank having a duty cycle;

    a first lens positioned in front of the first bank of LEDs to direct light from each LED into an illumination field associated with the LED;

    a second lens positioned in front of the second bank of LEDs to direct light from each LED into an illumination field associated with the LED, wherein the illumination fields of energized LEDs in the first bank and the second bank together create an illumination pattern, wherein a separate illumination field associated with the first bank LEDs overlaps each two adjacent illumination fields associated with the second bank while a separate illumination field associated with the second bank LEDs overlaps each two adjacent illumination fields associated with the first bank, and wherein a first edge illumination field is at one end of the illumination pattern and a second edge illumination field is at another end of the illumination pattern opposite the one end; and

    a processor controlling the LED duty cycles to move the illumination pattern projected by the first lens and the second lens in a first direction to the side of the first edge illumination field opposite the second edge illumination field by;

    (i) increasing a duty cycle of an LED associated with the first edge illumination field while simultaneously decreasing a duty cycle of an LED associated with the second edge illumination field; and

    (ii) repeating step (i) with the illumination field adjacent the first edge illumination field in the first direction as the first edge illumination field and with the illumination field adjacent the second edge illumination field in the first direction as the second edge illumination field.

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