Patent ID: 9069115
Filing Date: 2015-06-30
Classification: G02B

Abstract:
1. An eyepiece for a head mounted display (“HMD”) comprising: a light receiving end for receiving computer generated image (“CGI”) light propagating along a forward optical path; an end reflector disposed at an opposite end of the eyepiece from the light receiving end to reflect the CGI light along a reverse optical path within the eyepiece; a beam splitter positioned to direct the CGI light propagating along the reverse optical path in an eye-ward direction, wherein the beam splitter is disposed between the light receiving end and the end reflector; and at least one edge of the eyepiece running between the light receiving end and the end reflector, wherein the at least one edge is beveled to reduce reflection of the CGI light back into the eyepiece, wherein the at least one edge runs along a direction extending from the light receiving end to the end reflector.