Thermopile temperature sensor with a reference sensor therein
US9851258B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2015 |
| Grant date | Dec 26, 2017 |
| Priority date | — |
| Expiry date | Dec 1, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J5/064
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor package having a thermopile sensor and a reference thermopile sensor disposed therein. In one or more implementations, the sensor package includes a substrate, a thermopile sensor disposed over the substrate, a reference thermopile sensor disposed over the substrate, and a lid assembly disposed over the thermopile sensor and the reference thermopile sensor. The lid assembly includes a transparent structure that passes electromagnetic radiation occurring in a limited spectrum of wavelengths and an electromagnetic blocker disposed over the lid assembly. The electromagnetic blocker defines an aperture over the thermopile sensor such that at least a portion of the electromagnetic blocker is positioned over the reference thermopile sensor. The electromagnetic blocker is configured to at least substantially block the electromagnetic radiation occurring in a limited spectrum of wavelengths from reaching the reference thermopile sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.