Sun protection device having plurality of voids and S-type polarizer
US12265238B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 28, 2022 |
| Grant date | Apr 1, 2025 |
| Priority date | — |
| Expiry date | Dec 28, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/30
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A sun protection device is provided, which includes a main body and an S-type polarizer. The main body has an outer surface and an inner surface opposite to each other, and the outer surface is configured to face sunlight, and the main body has a plurality of voids disposed inside the main body, on the inner surface of the main body or a combination thereof, in which when the sunlight irradiates the outer surface of the main body, a first reflected light and a first refracted light are formed, and the first refracted light enters the main body, and when the first refracted light arrives at a surface of one of the voids facing the outer surface, a second reflected light is formed. The S-type polarizer is adjacent to the inner surface of the main body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.