SYSTEMS AND METHODS FOR IMPLEMENTING SELECTIVE ELECTROMAGNETIC ENERGY FILTERING OBJECTS AND COATINGS USING SELECTABLY TRANSMISSIVE ENERGY SCATTERING LAYERS
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United States of America Patent
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Issued Date -
Oct 31, 2019
app pub date -
Jul 8, 2019
filing date -
Apr 14, 2015
priority date (Note) -
Published
status (Latency Note)
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Abstract
A system and method are provided for forming energy filter layers or shutter components, including energy scattering layers that are actively electrically switchable. The energy filters or shutter components are operable between at least a first mode in which the layers, and thus the presentation of the shutter components, appear substantially transparent when viewed from an energy/light incident side, and a second mode in which the layers, and thus the presentation of the energy filters or shutter components, appear opaque to the incident energy impinging on the energy incident side. The differing modes are selectable by electrically energizing, differentially energizing and/or de-energizing electric fields in a vicinity of the energy scattering layers. Refractive indices of transparent particles, and the transparent matrices in which the particles are fixed, are tunable according to the applied electric fields. The energy scattering layers may conceal a sensor such as a camera or photovoltaic cell.
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International Classification(s)
- H01L:SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICE....
- G01J:MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTE....
- G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- G06F:ELECTRIC DIGITAL DATA PROCESSING
- G02F:DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF ....
- B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....
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