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