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ILLUMINATOR FOR TOUCH- AND OBJECT-SENSITIVE DISPLAY

  • US 20110043490A1
  • Filed: 11/19/2009
  • Published: 02/24/2011
  • Est. Priority Date: 08/21/2009
  • Status: Active Grant
First Claim
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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, configured to receive the infrared light from the vision-system emitter, to conduct the infrared light via total internal reflection from the upper and/or lower face, and to project the infrared light onto the one or more objects outside of the narrow range of angles relative to the display surface normal.

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