Methods for producing security and tracking systems including energy harvesting components for providing autonomous electrical power
US11310637B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2017 |
| Grant date | Apr 19, 2022 |
| Priority date | — |
| Expiry date | Sep 27, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E70/30
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method is provided that integrates a unique set of structural features for concealing self-powered sensor and communication devices in aesthetically neutral, or camouflaged, packages that include energy harvesting systems that provide autonomous electrical power to sensors, data processing and wireless communication components in the portable, self-contained packages. Color-matched, image-matched and/or texture-matched optical layers are formed over energy harvesting components, including photovoltaic energy collecting components. Optical layers are tuned to scatter selectable wavelengths of electromagnetic energy back in an incident direction while allowing remaining wavelengths of electromagnetic energy to pass through the layers to the energy collecting components below. The layers uniquely implement optical light scattering techniques to make the layers appear opaque when observed from a light incident side, while allowing at least 50%, and as much as 80+%, of the energy impinging on the energy or incident side to pass through the layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.