US 11,792,371 B2
Projector with field lens
Robert Matthew Bates, Erie, CO (US); and David G. Fliszar, Manhattan Beach, CA (US)
Assigned to Snap Inc., Santa Monica, CA (US)
Filed by Robert Matthew Bates, Erie, CO (US); and David G. Fliszar, Manhattan Beach, CA (US)
Filed on Feb. 28, 2021, as Appl. No. 17/187,823.
Prior Publication US 2022/0279151 A1, Sep. 1, 2022
Int. Cl. H04N 9/31 (2006.01); G02B 27/01 (2006.01); G02C 11/00 (2006.01)
CPC H04N 9/31 (2013.01) [G02B 27/0172 (2013.01); G02C 11/10 (2013.01); G02B 2027/0138 (2013.01); G02B 2027/0178 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A projector, comprising:
a light source configured to generate a light beam comprising a center axis;
a controller configured to control the light source;
a display configured to modulate the light beam to generate an image, the display having a display center;
a prism having a prism face and configured to route the light beam from the light source to the display;
a projection lens having an optical axis; and
a curved field lens coupled between the prism face and the display and configured to route the light beam from the prism face to the display, wherein the curved field lens and the prism are configured to decenter the light beam from the prism face and the display center is positioned a distance from a center axis of the curved field lens.