US 12,072,495 B2
Display device with optical waveguide and projector
David Hayes, Robertsbridge (GB)
Assigned to Snap Inc., Santa Monica, CA (US)
Filed by Snap Inc., Santa Monica, CA (US)
Filed on Dec. 23, 2021, as Appl. No. 17/561,081.
Claims priority of provisional application 63/199,427, filed on Dec. 27, 2020.
Prior Publication US 2022/0206304 A1, Jun. 30, 2022
Int. Cl. G02B 27/01 (2006.01); G02B 6/34 (2006.01); H04N 9/31 (2006.01); G06F 1/16 (2006.01)
CPC G02B 27/0172 (2013.01) [G02B 6/34 (2013.01); G02B 27/0176 (2013.01); H04N 9/3185 (2013.01); G02B 2027/0161 (2013.01); G06F 1/163 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device for use in displaying an augmented reality image of a real-world view or a virtual reality image to a user, the display device comprising:
an optical waveguide having an input optical element for receiving an image and at least one output optical element for outputting the image, the at least one output optical element occupying a region of the optical waveguide;
a projector for generating the image, the projector being physically coupled to the optical waveguide; and
a projector housing containing at least some components of the projector, the projector housing being relatively moveable with respect to the optical waveguide between a relative position in which a real-world view through the optical waveguide in the region of the at least one output optical element is occluded and a relative position in which the real-world view through the optical waveguide in the region of the at least one output optical element is not occluded.