US 11,982,813 B2
Waveguides with high index materials and methods of fabrication thereof
Vikramjit Singh, Pflugerville, TX (US); Kang Luo, Austin, TX (US); Michal Beau Dennison Vaughn, Round Rock, TX (US); Samarth Bhargava, Saratoga, CA (US); Shuqiang Yang, Austin, TX (US); Michael Nevin Miller, Austin, TX (US); Frank Y. Xu, Austin, TX (US); Michael Anthony Klug, Austin, TX (US); Kevin Messer, Mountain View, CA (US); Robert D. Tekolste, Fort Lauderdale, FL (US); Xiaopei Deng, Cedar Park, TX (US); and Xiao Li, Cooper City, FL (US)
Assigned to Magic Leap, Inc., Plantation, FL (US)
Appl. No. 17/437,722
Filed by Magic Leap, Inc., Plantation, FL (US)
PCT Filed Mar. 11, 2020, PCT No. PCT/US2020/022175
§ 371(c)(1), (2) Date Sep. 9, 2021,
PCT Pub. No. WO2020/185954, PCT Pub. Date Sep. 17, 2020.
Claims priority of provisional application 62/902,348, filed on Sep. 18, 2019.
Claims priority of provisional application 62/899,648, filed on Sep. 12, 2019.
Claims priority of provisional application 62/899,116, filed on Sep. 11, 2019.
Claims priority of provisional application 62/858,952, filed on Jun. 7, 2019.
Claims priority of provisional application 62/817,411, filed on Mar. 12, 2019.
Prior Publication US 2022/0128817 A1, Apr. 28, 2022
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 6/0036 (2013.01); G02B 6/0076 (2013.01); G02B 6/34 (2013.01); G02B 2027/0118 (2013.01); G02B 2027/0125 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An optical device comprising:
a substrate comprising a material having a refractive index greater than 2.0 that is transparent to visible light, said substrate comprising a waveguide;
a plurality of diffractive features formed in said substrate; and
a layer of material disposed over said diffractive features,
wherein the plurality of diffractive features are asymmetrical so as to provide for a blazed grating, or wherein the plurality of diffractive features have material asymmetrically deposited thereon so as to provide for a blazed grating.