Optical radiation sensor system having a radiation window with a non-circular opening
US7368725B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2004 |
| Grant date | May 6, 2008 |
| Priority date | — |
| Expiry date | Dec 1, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2001/063
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
There is described an optical radiation sensor device for detecting radiation in a radiation field. The device comprises a sensor element capable of detecting and responding to incident radiation from the radiation field and a radiation window interposed between the sensor element and the radiation field. The radiation window comprises a non-circular (preferably square) shaped radiation transparent opening. The optical radiation sensor device can be used in a so-called dynamic manner while mitigating or obviating the detection errors resulting from the use of a circular-shaped attenuating aperture and/or angular (even minor) misalignment of the sensor device with respect to the array of radiation sources when multiple such circular-shaped attenuating apertures are used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.