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Video projector system

  • US 9,025,086 B2
  • Filed: 04/11/2013
  • Issued: 05/05/2015
  • Est. Priority Date: 04/13/2012
  • Status: Active Grant
First Claim
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1. A video projector comprising:

  • a light source providing at least two discrete colors of light comprising a first color having a first wavelength range and a second color having a second wavelength range, the first wavelength range not including light having a wavelength within the second wavelength range;

    a video processing engine configured to provide digital video data having a source resolution and a source frame rate; and

    an optical path configured to receive the digital video data from the video processing engine and to receive light generated by the light source, the optical path comprising;

    a modulating element configured to modulate light incident thereon; and

    a scanning system positioned prior to the modulating element in the optical path, the scanning system configured to scan light from the different colors across the modulating element in a manner in which each color is incident on a different portion of the modulating element than any of the other colors at a particular point in time,wherein, at the particular point in time, the scanning system illuminates a first band of the modulating element with light of the first color and a second band of the modulating element, different from the first band, with light of the second color, andwherein, at another point in time later than the particular point in time, the scanning system illuminates the second band of the modulating element with light of the first color and a third band of the modulating element, different from the first band and the second band, with light of the second color.

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