Patent ID: 11880049
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 2:
3. A geometric phase lens comprising:
a liquid crystal layer; and
a controller configured to apply a voltage to the liquid crystal layer,
wherein, based on the controller applying a first voltage to the liquid crystal layer, incident light passes through the liquid crystal layer without being deflected,
wherein, based on the controller applying a second voltage to the liquid crystal layer, the liquid crystal layer diffracts left-handed circularly polarized incident light to converge at a first positive focal point and diffracts right-handed circularly polarized incident light to diverge from a first negative focal point,
wherein, based on the controller applying a third voltage to the liquid crystal layer, the liquid crystal layer diffracts the left-handed circularly polarized incident light to converge at a second positive focal point and diffracts the right-handed circularly polarized incident light to diverge from a second negative focal point,
wherein the first voltage, the second voltage, and the third voltage are different from each other, and
wherein the first positive focal point, the first negative focal point, the second positive focal point, and the second negative focal point are different from each other.