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US 11,079,518 B1Granted
Transparent tunable optical elements with structurally-modified electroactive polymer
AssigneeFacebook Technologies, LLC
InventorsKatherine Marie Smyth, Andrew John Ouderkirk, Spencer Allan Wells
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Abstract
An optical element includes a primary electrode, a secondary electrode overlapping at least a portion of the primary electrode, and a structurally-modified and transparent electroactive polymer disposed between and abutting the primary electrode and the secondary electrode. An optical device may include a tunable lens and an optical element disposed over at least one surface of the tunable lens.
Claims19
An optical element comprising:
- a primary electrode;
- a secondary electrode overlapping at least a portion of the primary electrode;
- and
- a transparent, structurally-modified electroactive polymer disposed between and abutting the primary electrode and the secondary electrode;
- wherein a surface of the structurally-modified electroactive polymer facing at least one of the primary electrode or the secondary electrode is non-planar when zero voltage is applied between the primary electrode and the secondary electrode.
2 more elements
An optical device, comprising:
- a tunable lens;
- and
- a first optical element disposed over a first surface of the tunable lens, wherein the first optical element comprises:
- a primary electrode;
- a secondary electrode overlapping at least a portion of the primary electrode;
- and
- a transparent, structurally-modified electroactive polymer disposed between and abutting the primary electrode and the secondary electrode;
- wherein a surface of the structurally-modified electroactive polymer facing at least one of the primary electrode or the secondary electrode is non-planar when zero voltage is applied between the primary electrode and the secondary electrode.
5 more elements
A method comprising:
- forming an electroactive polymer layer over a primary electrode;
- structurally modifying the electroactive polymer layer;
- and
- forming a secondary electrode over the electroactive polymer layer,
- wherein:
- a surface of the structurally-modified electroactive polymer facing at least one of the primary electrode or the secondary electrode is non-planar when zero voltage is applied between the primary electrode and the secondary electrode;
- and
- structurally modifying the electroactive polymer layer comprises at least one of:
- applying stress to the electroactive polymer layer,
- incorporating particles of a filler material within the electroactive polymer,
- thermally annealing the electroactive polymer,
- hydrogenating the electroactive polymer, and
- irradiating the electroactive polymer layer.
10 more elements
Dependencies are inferred from the claim text.