Near infrared shielding and laser-resistant window
US10464840B2 · kind B2 · utility
1Cited by
12References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2017 |
| Grant date | Nov 5, 2019 |
| Priority date | — |
| Expiry date | Oct 13, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2203/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Near-infrared shielding includes a glass material. The shielding provides transmittance at wavelengths between 390 to 700 nm, but near infrared absorbing species are distributed throughout the glass material and the shielding blocks light in the near infrared range. Further, the glass material has a near zero or negative coefficient of thermal expansion, allowing the glass material to heat up when the shielding is blocking a near infrared laser, without expanding much.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.