Patent ID: 11940711
Assignee: E-VISION SMART OPTICS, INC.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 5:
6. A method for projecting a light beam on a retina of a user via eyewear worn by the user, comprising:
coupling, into a beam steering device of the eyewear, a light beam as an incident light beam orthogonal to a first plane of a first overlay of the beam steering device, the first overlay coupled to a substrate of the beam steering device, the substrate having a first refractive index, the substrate defining a cavity having an electroactive material disposed therein, the electroactive material exhibiting a variable refractive index;
receiving, at a second overlay of the beam steering device, the incident light beam from the electroactive material, the second overlay defining a second plane titled with respect to the first plane to define a tilt angle; and
applying a first electrical signal to an electrode layer of the first overlay and to an electrode layer of the second overlay and applying a second electrical signal to an electrode layer of a third overlay and to an electrode layer of a fourth overlay of the beam steering device, the third overlay and the fourth overlay each defining a plane orthogonal with respect to the first plane, such that the electroactive material attains a second refractive index based on a strength of the first electrical signal and the second electrical signal.