US 12,259,598 B2
Optical defocus lens and method for implementing optical defocus
Youming Zhang, Shenzhen (CN); Zhixiang Fan, Shenzhen (CN); and Lifeng Sun, Shenzhen (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Nov. 17, 2023, as Appl. No. 18/512,526.
Application 18/512,526 is a continuation of application No. PCT/CN2021/095077, filed on May 21, 2021.
Prior Publication US 2024/0094560 A1, Mar. 21, 2024
Int. Cl. G02C 7/08 (2006.01); G02F 1/29 (2006.01)
CPC G02C 7/083 (2013.01) [G02F 1/29 (2013.01); G02C 2202/16 (2013.01); G02F 2203/07 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An optical defocus lens, comprising:
a first lens layer having a concave lens, a convex lens, or a plano lens; and
at least one liquid crystal lens layer, wherein a refractive index of liquid crystal molecules in each of the at least one liquid crystal lens layer is controlled by an electric field, to converge or diverge polarized light incident to a direction of each liquid crystal lens layer to form a focal point, wherein the at least one liquid crystal lens layer comprises:
a first liquid crystal lens layer configured to converge or diverge polarized light in a first direction to form a first focal point, and
a second liquid crystal lens layer configured to converge or diverge polarized light in a second direction to form a second focal point, wherein the second liquid crystal lens layer is different from the first liquid crystal lens layer, the second direction is different from the first direction, and positions of the first focal point and the second focal point are different.