Protecting a UV-transmissive window
US10634555B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2019 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Apr 18, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Systems and methods are disclosed for protecting a UV-transmissive window. The system includes a first light source for emitting UV energy. The system also includes a UV transmissive window having a planar dimension and a thickness direction perpendicular to the planar dimension, the window positioned so that UV energy from the UV light source passes through the thickness dimension of the window. The system further includes a second light source for introducing a beam of light transverse to the thickness dimension of the window, a detector for detecting light received from the second light source after the light passes through the thickness dimension, and a control system responsive to changes in the detected light received from the second light source and configured to transmit an alert when a change in the detected light exceeds a threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.