US 7,460,305 B2
Scanned-beam heads-up display and related systems and methods
Karlton D. Powell, Lake Stevens, Wash. (US); Hakan Ürey, Istanbul (Turkey); Amjad Malik, Bothell, Wash. (US); and Russell J. Hannigan, Sammamish, Wash. (US)
Assigned to Microvision, Inc., Redmond, Wash. (US)
Filed on Aug. 04, 2006, as Appl. No. 11/499,396.
Prior Publication US 2007/0103747 A1, May 10, 2007
Int. Cl. G02B 27/14 (2006.01)
U.S. Cl. 359—630  [359/13; 359/900] 17 Claims
OG exemplary drawing
 
1. A heads-up display, comprising:
a scanner assembly operable to generate an image by sweeping a beam of electromagnetic energy in at least one dimension; and
a projection assembly operable to direct the image into a predetermined viewing space having a substantially uniform intensity profile in a cross section having a region that is substantially normal to a viewing dimension, wherein the projection assembly comprises an exit-pupil expander, and wherein the scanner is operable to generate the image by sweeping the beam in two dimensions onto the exit-pupil expander.