US 12,271,000 B2
Independent conjugate image generation optical systems
Yochay Danziger, Kfar Vradim (IL); and Eitan Ronen, Rechovot (IL)
Assigned to Lumus Ltd., Ness Ziona (IL)
Appl. No. 18/294,851
Filed by Lumus Ltd., Ness Ziona (IL)
PCT Filed Sep. 2, 2022, PCT No. PCT/IB2022/058271
§ 371(c)(1), (2) Date Feb. 2, 2024,
PCT Pub. No. WO2023/031874, PCT Pub. Date Mar. 9, 2023.
Claims priority of provisional application 63/245,869, filed on Sep. 19, 2021.
Claims priority of provisional application 63/240,951, filed on Sep. 5, 2021.
Prior Publication US 2024/0337844 A1, Oct. 10, 2024
Int. Cl. G02B 27/01 (2006.01); G02B 27/18 (2006.01); G02B 27/28 (2006.01)
CPC G02B 27/0172 (2013.01) [G02B 27/18 (2013.01); G02B 27/283 (2013.01); G02B 2027/0178 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An optical system for directing an image towards a user for viewing, the optical system comprising:
(a) a light-guide optical element (LOE) formed from transparent material and having at least first and second mutually-parallel major external surfaces for supporting propagation of an image by internal reflection at the first and second major external surfaces, the LOE having a coupling-out arrangement for coupling out the image towards an eye of the user, the LOE having a coupling-in aperture;
(b) an image projector separate from the LOE and comprising an image generator for generating an image and an image conjugate generator for generating a conjugate image of the image, said image projector being disposed relative to said coupling-in aperture so as to project the image and said conjugate image from the projector and introduce into said coupling-in aperture the image and said conjugate image prior to said image and said conjugate image impinging on either of said at least first and second major external surfaces, the image generator and the image conjugate generator disposed such as to project the image and the conjugate image, respectively, from directions not directly in front of the LOE; and
a coupling-in reflector deployed obliquely to the first and second major external surfaces; and
a pivot operably connected to the coupling-in reflector and configured to pivot the coupling-in reflector sequentially in concert with the image generator and the image conjugate generator generating the image and the conjugate image.