Image projector with flexible reflective analog modulator

Details Image projector with flexible reflective analog modulator Image projector with flexible reflective analog modulator

G - Physics

02

B

G02B 26/08 (2006.01) B81B 7/02 (2006.01) G02B 17/08 (2006.01) H04N 5/74 (2006.01)

Patent

CA 2507177

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.

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