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US 11,175,521 B2Granted
Drive schemes for transparent tunable optical elements
AssigneeFacebook Technologies, LLC
InventorsKatherine Marie Smyth, Spencer Allan Wells, Robin Sharma, Andrew John Ouderkirk
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Abstract
A transparent optical element includes a primary electrode, a secondary electrode overlapping at least a portion of the primary electrode, an electroactive layer disposed between and abutting the primary electrode and the secondary electrode, and a control system operably coupled to at least one of the primary electrode and the secondary electrode and adapted to provide a drive signal to actuate the electroactive layer within an aperture of the transparent optical element.
Claims19
A transparent optical element comprising:
- a primary electrode;
- a secondary electrode overlapping at least a portion of the primary electrode;
- an electroactive layer disposed between and abutting the primary electrode and the secondary electrode;
- and
- a control system operably coupled to at least one of the primary electrode and the secondary electrode and adapted to provide a drive signal to actuate the electroactive layer within an aperture of the transparent optical element, wherein the electroactive layer has a transmissivity of at least 75% and less than 10% haze.
2 more elements
A method comprising:
- transmitting a drive signal to a driver circuit of an optical element, the optical element comprising:
- a primary electrode;
- a secondary electrode overlapping at least a portion of the primary electrode;
- and
- an electroactive layer disposed between and abutting the primary electrode and the secondary electrode, wherein the electroactive layer has a transmissivity of at least 75% and less than 10% haze and is located within a transparent aperture of the optical element;
- and
- actuating the electroactive layer by applying the drive signal to at least one of the primary electrode and the secondary electrode, wherein the drive signal is transmitted by a voltage amplifier or a power amplifier electrically connected to the driver circuit.
4 more elements
A method comprising:
- transmitting a drive signal to a driver circuit of an optical element, the optical element comprising:
- a primary electrode;
- a secondary electrode overlapping at least a portion of the primary electrode;
- and
- an electroactive layer disposed between and abutting the primary electrode and the secondary electrode, wherein the electroactive layer has a transmissivity of at least 75% and less than 10% haze and is located within a transparent aperture of the optical element;
- actuating the electroactive layer by applying the drive signal to at least one of the primary electrode and the secondary electrode;
- and
- sensing a condition of the optical element using a sensing element coupled to the driver circuit.
5 more elements
Dependencies are inferred from the claim text.