US 12,140,759 B2
Optical see through (OST) near eye display (NED) system integrating ophthalmic correction
Asaf Ashkenazi, Haifa (IL); and Hanan Shamir, Haifa (IL)
Assigned to EVERYSIGHT LTD., Haifa (IL)
Appl. No. 17/614,422
Filed by EVERYSIGHT LTD., Haifa (IL)
PCT Filed May 28, 2020, PCT No. PCT/IL2020/050599
§ 371(c)(1), (2) Date Nov. 26, 2021,
PCT Pub. No. WO2020/240566, PCT Pub. Date Dec. 3, 2020.
Claims priority of application No. 266969 (IL), filed on May 28, 2019.
Prior Publication US 2022/0229300 A1, Jul. 21, 2022
Int. Cl. G02B 27/01 (2006.01); G02B 17/08 (2006.01); G02B 27/00 (2006.01)
CPC G02B 27/0172 (2013.01) [G02B 17/08 (2013.01); G02B 27/0025 (2013.01); G02B 27/0093 (2013.01); G02B 2027/014 (2013.01); G02B 2027/0178 (2013.01); G02B 2027/0187 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An optical see-through (OST) near-eye display (NED) system, integrating ophthalmic correction for an eye of a user, comprising:
a partially transmissive partially reflective lens, including an inner surface having an inner surface radius of curvature exhibiting a first optical power, and an outer surface having an outer surface radius of curvature exhibiting a second optical power, said partially transmissive partially reflective lens is configured to be facing said eye, and to at least partially transmit incoming light of an outward scene to said eye; and
an electro-optical unit, configured to be optically coupled with said partially transmissive partially reflective lens, said electro-optical unit including a light display, a cold mirror and optical elements, said light display being configured to project a light beam image onto said cold mirror via said optical elements onto said inner surface, so to enable reflection of said light beam image toward said eye, said electro-optical unit is configured to be located at a glabellar region of said user,
wherein said first optical power is configured to provide ophthalmic correction with respect to reflected said light beam image for viewing by said eye, wherein said second optical power is configured to provide ophthalmic correction with respect to transmitted said incoming light from said outward scene for viewing by said eye.