US 11,940,625 B2
Light-guide display with reflector
Yochay Danziger, Kfar Vradim (IL); Ronen Chriki, Ness Ziona (IL); and Daniel Michaels, Ramat Gan (IL)
Assigned to Lumus Ltd., Ness Ziona (IL)
Appl. No. 17/290,763
Filed by Lumus Ltd., Ness Ziona (IL)
PCT Filed Nov. 10, 2019, PCT No. PCT/IL2019/051227
§ 371(c)(1), (2) Date May 2, 2021,
PCT Pub. No. WO2020/095311, PCT Pub. Date May 14, 2020.
Claims priority of provisional application 62/757,198, filed on Nov. 8, 2018.
Prior Publication US 2022/0004001 A1, Jan. 6, 2022
Int. Cl. G02B 27/01 (2006.01); B60K 35/00 (2006.01); F21V 8/00 (2006.01); G02B 5/30 (2006.01)
CPC G02B 27/0172 (2013.01) [B60K 35/00 (2013.01); G02B 5/3066 (2013.01); G02B 6/0055 (2013.01); B60K 35/23 (2024.01); B60K 2360/23 (2024.01); B60K 2360/334 (2024.01); B60K 2360/336 (2024.01); B60K 2360/347 (2024.01); G02B 2027/013 (2013.01); G02B 2027/0178 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A display for displaying an image to an eye of an observer, the display comprising:
(a) a light-guide optical element (LOE) having a pair of parallel major faces;
(b) a projector arrangement for injecting an image into said LOE so as to propagate within said LOE by internal reflection at said pair of major faces;
(c) a coupling-out arrangement comprising a plurality of partially-reflective surfaces deployed within said LOE at an oblique angle to said pair of parallel major faces for coupling the image out from said LOE in a direction away from the eye of the observer; and
(d) a reflector deployed to reflect the coupled-out image back through the LOE towards the eye of the observer.