Optical illumination and distortion compensator

Details Optical illumination and distortion compensator Optical illumination and distortion compensator

G - Physics

09

B

35/16, 88/46

G09B 9/08 (2006.01) G02B 13/08 (2006.01) G02B 27/01 (2006.01) G02B 27/02 (2006.01) G03B 21/00 (2006.01) G09B 9/32 (2006.01) G02B 27/00 (2006.01)

Patent

CA 1119852

Abstract This disclosure describes a method and apparatus for a visual display system in a vehicle simulator to compensate for distortion and to maximize illumination in a projected image substantially at the same time. then a spherical mirror (11) is interposed between a curved rear-projection screen (12) and a viewing position (10), certain distortions are developed which detract from realism. Such distortions are compensated for by reflecting the image off a curved folding mirror (13) positioned so that its major axis (CL-2) is substantially perpendicular to the major axis (CL-l) of the curved rear- projection screen (2). In accordance with the invention, when such compensation is achieved, the illumination of the projected image will be at substantially its brightest.

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