US 11,782,276 B2
Systems and methods to reduce bounce spacing and double-bounce in waveguides
Daniel Adema, Kitchener (CA); Timothy Paul Bodiya, Toronto (CA); and Shreyas Potnis, Kitchener (CA)
Assigned to GOOGLE LLC, Mountain View, CA (US)
Filed by GOOGLE LLC, Mountain View, CA (US)
Filed on Mar. 17, 2021, as Appl. No. 17/204,451.
Prior Publication US 2022/0299764 A1, Sep. 22, 2022
Int. Cl. G02B 27/01 (2006.01); G02B 26/10 (2006.01); F21V 8/00 (2006.01); G03B 21/20 (2006.01)
CPC G02B 27/0172 (2013.01) [G02B 6/0023 (2013.01); G02B 6/0068 (2013.01); G02B 26/101 (2013.01); G03B 21/2033 (2013.01); G02B 2027/0118 (2013.01); G02B 2027/0178 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system comprising:
a waveguide in a lens of a wearable heads-up display, the waveguide comprising an incoupler, wherein the incoupler is an optical grating structure on or within the waveguide;
a laser projector comprising a plurality of laser diodes mounted to a substrate, the laser projector being configured to provide a plurality of laser light beams to the incoupler of the waveguide; and
at least one alignment component configured to align the plurality of laser light beams tangent with an edge of the incoupler.