Patent ID: 11960165
Assignee: MAGIC LEAP, INC.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A broadband adaptive lens assembly for a display device, comprising:
a first waveplate lens comprising a liquid crystal (LC) layer having LC molecules arranged such that the first waveplate lens has birefringence (Δn) that varies in a radially outward direction from a central region of the first waveplate lens and configured to diffract light at a diffraction efficiency greater than 90% within a wavelength in a range spanning at least 450 nm to 630 nm, and wherein the Δn of the LC layer increases with increasing wavelength within the wavelength range; and
a switchable waveplate configured to be electrically activated and deactivated,
wherein the broadband adaptive lens assembly is configured to be selectively switched between at least two lens states including:
a first lens state configured to exert a first lens effect according to a first optical power and to alter a polarization of light passing through the broadband adaptive lens assembly; and
a second lens state configured to exert a second lens effect according to a second optical power and to preserve the polarization of the light passing through the broadband adaptive lens assembly.