US 12,140,764 B2
Wide angle waveguide display
Milan Momcilo Popovich, Leicester (GB); Alastair John Grant, San Jose, CA (US); Nima Shams, Sunnyvale, CA (US); Jonathan David Waldern, Diablo, CA (US); Sihui He, Sunnyvale, CA (US); Edward Lao, South San Francisco, CA (US); and Roger Allen Conley Smith, Sunnyvale, CA (US)
Assigned to DigiLens Inc., Sunnyvale, CA (US)
Filed by DigiLens Inc., Sunnyvale, CA (US)
Filed on Jun. 2, 2023, as Appl. No. 18/328,535.
Application 18/328,535 is a continuation of application No. 17/659,410, filed on Apr. 15, 2022, abandoned.
Application 17/659,410 is a continuation in part of application No. 17/328,727, filed on May 24, 2021, granted, now 11,543,594.
Application 17/328,727 is a continuation of application No. 16/794,071, filed on Feb. 18, 2020, abandoned.
Claims priority of provisional application 62/813,373, filed on Mar. 4, 2019.
Claims priority of provisional application 62/806,665, filed on Feb. 15, 2019.
Claims priority of provisional application 63/176,064, filed on Apr. 16, 2021.
Prior Publication US 2024/0012247 A1, Jan. 11, 2024
Int. Cl. G02B 27/01 (2006.01); F21V 8/00 (2006.01); G02B 6/34 (2006.01)
CPC G02B 27/0172 (2013.01) [G02B 6/0016 (2013.01); G02B 27/0103 (2013.01); G02B 6/34 (2013.01); G02B 2027/0125 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A waveguide display device comprising:
a first input image source providing first image light;
a second input image source providing second image light;
a first IDA waveguide comprising:
an input coupler for incoupling the first image light into a TIR path in the first IDA waveguide via a first pupil;
a first grating with a first K-vector; and
a second grating with a second K-vector different than the first K-vector and sharing a multiplexed region with the first grating,
wherein the first grating and the second grating together provide two-dimensional beam expansion to the first image light, and
wherein the portions of the first grating and the second grating sharing the multiplexed region together extract the two-dimensionally expanded first image light towards an eyebox; and
a second IDA waveguide comprising:
an input coupler for incoupling the second image light into a TIR path in the second IDA waveguide via a second pupil;
a first grating with a first K-vector; and
a second grating with a second K-vector different than the first K-vector and sharing a multiplexed region with the first grating,
wherein the first grating and the second grating together provide two-dimensional beam expansion to the second image light, and
wherein the portions of the first grating and the second grating sharing the multiplexed region together extract the two-dimensionally expanded second image light towards the eyebox.