SWIR-MWIR transparent, conductive coating for EMI protection of NCOC
US12248122B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2021 |
| Grant date | Mar 11, 2025 |
| Priority date | — |
| Expiry date | Aug 24, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/16
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A shortwave to midwave infrared (SWIR-MWIR) optical window includes a substrate formed from a nanocomposite optical ceramic material and a coating disposed on the substrate to provide electromagnetic interference (EMI) protection. The coating is electrically conductive and SWIR-MWIR transparent and comprises a doped zinc oxide material. A method of protecting an EO/IR sensor from electromagnetic interference (EMI) includes depositing a thin film electrically conductive and SWIR-MWIR transparent coating over a surface an optical window of the EO/IR sensor. The optical window is formed from a nanocomposite optical ceramic material and has a curved surface. The thin film electrically conductive and SWIR-MWIR transparent coating comprises an electrically conductive zinc oxide material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.