System for providing thermal energy radiation detectable by a thermal imaging unit
US8508128B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Nov 2, 2008 |
| Grant date | Aug 13, 2013 |
| Priority date | — |
| Expiry date | Dec 2, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01K1/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In accordance with an aspect of the invention, there is provided a thermal radiation marker (10) adapted to emit radiation within the thermal portion of the infrared spectrum. According to some embodiments of the invention, the thermal radiation marker may include an incandescent filament (16) and a glass or quartz enclosure (12). The incandescent filament may be adapted to produce radiation at least within the thermal portion of the infrared spectrum. The glass or quartz enclosure may include at least a portion that is substantially thin, and may enclose pressurized inert (14) gas and the incandescent filament surrounded by the inert gas. At least a portion of the glass or quartz enclosure may be sufficiently thin so as to enable good transmittance therethrough for tli3rmal radiation approximately in the 3-5&mgr,-m wavelength band. The pressurized inert gas enclosed within the glass or quartz enclosure and surrounding the incandescent filament may enable a regenerative cycle to take place within the enclosure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.