Optimized infrared light source for a gas sensor, and manufacturing method thereof
US12372457B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2021 |
| Grant date | Jul 29, 2025 |
| Priority date | — |
| Expiry date | Jan 11, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/06186
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An infrared light source includes an emitting element extending as a radial plane about the emitting element's center and configured to heat up to emit infrared light. The emitting element lies in a cavity bounded by a cover, placed facing the emitting element. The cover has internal and external faces, the internal face facing the emitting element, and the external face defining an interface between the cover and a medium outside the light source. The cover occupies, parallel to a transverse axis perpendicular to the radial plane, a thickness, between the internal and external faces. The external face includes a planar central portion and at least one peripheral portion adjacent and inclined respective to the central portion. The planar central portion extends about the external face's center. In the peripheral portion, the cover's thickness decreases as a function of a distance from the central portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.