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HEAD UP DISPLAY SYSTEM

  • US 20120139817A1
  • Filed: 08/10/2010
  • Published: 06/07/2012
  • Est. Priority Date: 08/13/2009
  • Status: Abandoned Application
First Claim
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1. A head up display apparatus comprising a signal processing system,the signal processing system comprising an image projector for projecting an image to a partially reflective screen, said screen being configured substantially in front of an eye of a user of the display apparatus,the apparatus further comprising a beam steering arrangement for steering the projected image substantially at an exit pupil of the system such that the projected image becomes directed upon the screen, and a pupil tracking arrangement for tracking a pupil of the user'"'"'s eye,the pupil tracking arrangement comprising at least one light detector and a mirror arrangement, and at least one mirror actuator which is responsive to signals from said at least one light detector to effect a repositioning of the mirror arrangement, such that the projected image remains directed at the pupil of the user as the user adjusts their line of sight.

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