ROUTE GUIDANCE HEAD-UP DISPLAY

THE ROUTE GUIDANCE HEAD-UP DISPLAY IS A MEANS FOR PROJECTING ONE OF SIXTEEN SYMBOLS (STANDARDIZED AND SPECIFIED BY THE BUREAU OF PUBLIC ROADS) SO THAT THEY CAN BE EASILY VIEWED BY A DRIVER WHO HAS HIS ATTENTION ON THE ROAD AHEAD (THAT IS, HE NEED NOT DROP HIS EYES TO THE INSTRUMENT PANEL NOR TAKE THEM OFF THE ROAD). THE SYSTEM USES A 12V LAMP, A ROTATING SCREEN DRIVEN BY A DC MOTOR AND A LENS/MIRROR SYSTEM TO REFLECT A VIRTUAL IMAGE FROM THE WINDSHIELD. THE VIRTUAL IMAGE IS FOCUSED AT INFINITY AND WILL SUBTEND APPROXIMATELY 1.5 DEGREES AT THE DRIVER'S EYE. IT IS BRIGHT ENOUGH TO BE VISIBLE IN VIRTUALLY ALL KINDS OF OUTSIDE BRIGHTNESS AND BY DRIVERS WITH SOME IMPAIRMENT OF VISION SUCH AS COLOR BLINDNESS. /BPR/

  • Corporate Authors:

    Kollsman Instrument Corporation

    /Systems Division
    ,   United States 
  • Publication Date: 1968

Subject/Index Terms

Filing Info

  • Accession Number: 00227945
  • Record Type: Publication
  • Source Agency: Traffic Systems Reviews & Abstracts
  • Files: TRIS
  • Created Date: Feb 24 1970 12:00AM