Beam-controlled spectral-selective architecture for a radiative cooler
US12352473B2 · kind B2 · utility
0Cited by
6References
17Claims
0Family size
Inventors
Key dates
| Filing date | Aug 19, 2019 |
| Grant date | Jul 8, 2025 |
| Priority date | — |
| Expiry date | Aug 12, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F2245/06
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A passive cooler of the disclosure includes a thermal emitter having a substrate and a coating disposed on at least a portion of a first side of the substrate. The cooler has a beam guide made from a material having a high absorption to solar wavelengths and high reflectance at mid-infrared wavelengths. The beam guide is configured such that at least a portion of incident light is acted on by the beam guide before reaching the thermal emitter. In some embodiments, the beam guide has a graded optical index.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.