Back to results
US 2022/0011587 A1Published application
Switchable dimming element and switchable polarizer
AssigneeFacebook Technologies, LLC
InventorsJasmine Soria Sears, Christopher Andrew Galea
Life of this patent
Estimating the term…
Abstract
An optical element includes a metal layer and a transparent conductor layer. Strips of the metal layers extend and curl based on a switching signal driven onto the transparent conductor layer that controls a polarization attenuation of the optical element.
Claims20
An optical device comprising:
- a transparent conductor layer;
- a driver module configured to drive a switching signal onto the transparent conductor layer, wherein the transparent conductor layer is configured to receive the switching signal;
- and
- a metal layer configured to enter an extended state that increases a polarization-selective attenuation of the metal layer with respect to incident light when the switching signal is driven onto the transparent conductor layer.
1 more element
An optical element comprising:
- a transparent conductor layer;
- and
- a metal layer configured to form chains that linearly polarize incident light when a first voltage level is driven onto the transparent conductor layer, wherein the metal layer enters a transmissive state when a second voltage level is driven onto the transparent conductor layer, and wherein a higher percentage of the incident light propagates through the optical element in the transmissive state of the metal layer compared to the polarization state of the metal layer.
An optical device comprising:
- a pixel driving module;
- and
- a plurality of pixels, wherein the pixel driving module is configured to selectively drive each of the pixels in the plurality between a transmissive state and a polarization state, wherein each of the pixels in the plurality includes:
- a transparent conductor layer;
- and
- a metal layer configured to linearly polarize incident light when a first voltage level is driven onto the transparent conductor layer by the pixel driving module, and wherein the metal layer transmits a majority of the incident light when a second voltage level is driven onto the transparent conductor layer by the pixel driving module.
3 more elements
Dependencies are inferred from the claim text.