US 11,747,585 B2
Optical combiner and combiner lens with lightguide failure mitigation mechanism
Timothy Paul Bodiya, Toronto (CA); Daniel Robert Adema, Kitchener (CA); Syed Moez Haque, Kitchener (CA); Andrew S. Logan, Waterloo (CA); and Dwayne Wasylyshyn, Kitchener (CA)
Assigned to GOOGLE LLC, Mountain View, CA (US)
Filed by GOOGLE LLC, Mountain View, CA (US)
Filed on Sep. 4, 2020, as Appl. No. 17/12,369.
Claims priority of provisional application 62/895,721, filed on Sep. 4, 2019.
Prior Publication US 2021/0063672 A1, Mar. 4, 2021
Int. Cl. G02B 7/02 (2021.01); G02B 27/01 (2006.01)
CPC G02B 7/02 (2013.01) [G02B 27/0172 (2013.01); G02B 2027/0178 (2013.01)] 23 Claims
OG exemplary drawing
 
15. A combiner lens, comprising:
a lightguide in stack with a first lens and a second lens, the lightguide including an input region, an output region, a relay region intermediate between the input region and the output region, and a line of weakness that is intermediate between the input region and the output region and that extends across the relay region.