Patents by Inventor Keith Niall

Keith Niall has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7835056
    Abstract: An image projector comprises a plurality of flexible reflective analog modulators (FRAMs), an illumination optics for focusing at least one light source thereon, a conversion optics for converting the variations in divergence of the beams reflected therefrom into variations in intensity, and a scanning mechanism coupled to a projection optics for displaying an image, constructed of intensity modulated light dots or pixels, on a screen. FRAM curvatures, responsible for determining the divergence of the reflected beams, and ultimately the intensity of each pixel, are varied by an actuation voltage that can be modulated using waveforms that minimize the FRAM response times. For multicolor images, three laser light sources operating at different wavelengths are used in conjunction with three linear FRAM arrays.
    Type: Grant
    Filed: May 12, 2006
    Date of Patent: November 16, 2010
    Assignee: Her Majesty the Queen in Right of Canada, as represented by Institut National d'Optique
    Inventors: Michel Doucet, Maxime Savard, Francis Picard, Keith Niall
  • Publication number: 20060291269
    Abstract: An image projector comprises a plurality of flexible reflective analog modulators (FRAMs), an illumination optics for focusing at least one light source thereon, a conversion optics for converting the variations in divergence of the beams reflected therefrom into variations in intensity, and a scanning mechanism coupled to a projection optics for displaying an image, constructed of intensity modulated light dots or pixels, on a screen. FRAM curvatures, responsible for determining the divergence of the reflected beams, and ultimately the intensity of each pixel, are varied by an actuation voltage that can be modulated using waveforms that minimize the FRAM response times. For multicolour images, three laser light sources operating at different wavelengths are used in conjunction with three linear FRAM arrays.
    Type: Application
    Filed: May 12, 2006
    Publication date: December 28, 2006
    Applicants: Institut National d'Optique, Her Majesty the Queen in Right of Canada, as Represented by the Minister of National Defence
    Inventors: Michel Doucet, Maxime Savard, Francis Picard, Keith Niall