US 12,405,475 B2
Waveguide-type see-through Maxwellian near-to-eye display having eyebox enlarged using pin mirror holographic optical element array
Jae Hyeung Park, Incheon (KR); and Myeongho Choi, Incheon (KR)
Assigned to INHA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, Incheon (KR)
Appl. No. 18/702,158
Filed by INHA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION, Incheon (KR)
PCT Filed Feb. 17, 2022, PCT No. PCT/KR2022/002344
§ 371(c)(1), (2) Date Apr. 17, 2024,
PCT Pub. No. WO2023/068456, PCT Pub. Date Apr. 27, 2023.
Claims priority of application No. 10-2021-0141462 (KR), filed on Oct. 22, 2021.
Prior Publication US 2024/0411136 A1, Dec. 12, 2024
Int. Cl. G02B 27/01 (2006.01); F21V 8/00 (2006.01); G02B 5/32 (2006.01)
CPC G02B 27/0172 (2013.01) [G02B 5/32 (2013.01); G02B 6/0035 (2013.01); G02B 2027/0174 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A waveguide-type see-through Maxwellian near-eye display, comprising:
a waveguide; and
a pin-mirror holographic optical element (PMHOE) array configured to attach to the waveguide and to diffract light propagated in the waveguide toward a user,
wherein the PMHOE array includes a plurality of PMHOEs each attached to the waveguide and arranged to be separate from each other on the waveguide, and configured to realize the Maxwellian view effect,
wherein the PMHOEs have individual eyeboxes, respectively, and
wherein the PMHOE array has an extended eyebox in which the individual eyeboxes are integrated.