Patent ID: 8730212
Filing Date: 2014-05-20
Classification: G06F

Abstract:
1. An integrated vision and display system comprising: a display-image forming layer configured to transmit a display image for viewing through a display surface; an imaging detector configured to image infrared light of a narrow range of angles relative to the display surface normal, the imaged infrared light including a reflection from one or more objects arranged on or near the display surface; a vision-system emitter configured to emit the infrared light, for illuminating the one or more objects; and a visible- and infrared-transmissive light guide having opposing upper and lower faces, opposing edge faces adjacent the upper and lower faces, and a volume-type diffusive layer arranged on or within the light guide and parallel to the upper and lower faces, the light guide configured to receive the infrared light from the vision-system emitter, to conduct the infrared light from one edge face toward the opposing edge face via total internal reflection from the upper and/or lower face, and, by frustration of the total internal reflection by the volume-type diffusive layer, to project the infrared light onto the one or more objects, the volume-type diffusive layer including a plurality of light-diffusing features distributed three dimensionally.