IIRC, that dates back to when Hughes was still part of GM. A good HUD uses collimation to project data out in the distance. A crappy HUD throws it up at the s

IIRC, that dates back to when Hughes was still part of GM. A good HUD uses collimation to project data out in the distance. A crappy HUD throws it up at the same distance as your windshield, forcing you to refocus.