Sensor comprising multi-wavelength LEDs
US7173702B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2004 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | May 25, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/0627
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The illustrative embodiment of the present invention is a system and a method for the detection and identification of biological agents. The system incorporates elements that enable it to obtain an air sample, extract particulates from the air sample onto a stationary-phase collection media, expose the particulates to electromagnetic radiation, and monitor for fluorescent emissions. In some embodiments, particulates are exposed to electromagnetic radiation using a plurality of LEDs, wherein some of the LEDs emit electromagnetic radiation at relatively shorter wavelengths and some other of the LEDs emit electromagnetic radiation at relatively longer wavelengths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.