Electroluminescent illumination source for optical detection systems
US7815854B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 2004 |
| Grant date | Oct 19, 2010 |
| Priority date | — |
| Expiry date | Aug 17, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/76
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical detection system that utilizes an electroluminescent (EL) illumination source is provided. Unlike illumination sources used with some conventional optical detection systems, an EL device is relatively homogeneous and diffuse, and thus may provide uniform illumination to the test sample. In addition, the emitted light intensity of the EL device may be easily controlled by simply varying the voltage or the frequency of the applied current. The relatively flexibility of EL devices may also allow them to be readily incorporated into a chromatographic-based assay device for detecting the presence or absence of an analyte within a test sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.