Apparatuses and systems for pancharatnam-berry phase augmented gradient-index liquid crystal lenses
AssigneeMeta Platforms Technologies, LLC
InventorsEugene Cho, Afsoon Jamali
Life of this patent
Estimating the term…
Abstract
The disclosed apparatus may include a varifocal lens, where the transmissivity of the varifocal lens changes in relation to the optical power of the varifocal lens; and a transmissivity compensation component that is configured to change as the optical power of the varifocal lens changes, such that a variation of transmissivity of the varifocal lens is less than a variation of transmissivity of the varifocal lens in combination with the transmissivity compensation component. Various other apparatuses, systems, and methods are also disclosed.
Claims20
An apparatus comprising:
- a varifocal lens, wherein the transmissivity of the varifocal lens changes in relation to the optical power of the varifocal lens;
- and
- a transmissivity compensation component that is configured to change as the optical power of the varifocal lens changes, such that a variation of transmissivity of the varifocal lens is less than a variation of transmissivity of the varifocal lens in combination with the transmissivity compensation component.
A system comprising:
- a lens apparatus, comprising:
- a varifocal lens, wherein the transmissivity of the varifocal lens changes in relation to the optical power of the varifocal lens;
- and
- a transmissivity compensation component that is configured to change as the optical power of the varifocal lens changes, such that a variation of transmissivity of the varifocal lens is less than a variation of transmissivity of the varifocal lens in combination with the transmissivity compensation component;
- an accommodation module;
- and
- a head-mounted display.
A method of manufacture, comprising:
- placing a varifocal lens, wherein a transmissivity of the varifocal lens changes in relation to the optical power of the varifocal lens;
- disposing a transmissivity compensation component in a same optical path as the varifocal lens, wherein the transmissivity compensation component is configured to change as the optical power of the varifocal lens changes, such that a variation of transmissivity of the varifocal lens is less than a variation of transmissivity of the varifocal lens in combination with the transmissivity compensation component;
- and
- communicatively coupling control circuitry to the transmissivity compensation component, the control circuitry configured to transmit a signal to the transmissivity compensation component to change transmissivity as the transmissivity of the varifocal lens changes.
Dependencies are inferred from the claim text.