Active sensor and method for optical illumination and detection
US7170605B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Aug 25, 2003 |
| Grant date | Jan 30, 2007 |
| Priority date | — |
| Expiry date | Nov 17, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L2300/0829
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An active sensor a method for optical illumination and detection provides low cost and high-speed optical scanning of bio-arrays, DNA samples/chips, semiconductors, micro-electromechanical systems and other samples requiring inspection or measurement. A plurality of illumination sources forming a parallel multi-pixel array is used to illuminate one or more samples via an imaging system or by placement in close proximity to the samples. The array may be a line array or a two-dimensional array. A plurality of detectors is integrated within the multi-pixel illumination array or provided in a separate array, each detector for detecting optical properties of the sample that results from illumination by one or more associated illumination sources. One detector may be associated with multiple illuminators or one illuminator may be associated with multiple detectors. Filters may be integrated within the illumination path and/or detection paths to provide wavelength and/or polarization discrimination capability and microlenses may also be incorporated within the illumination path and/or detection paths to provide focusing or imaging. The illumination sources may be provided by TFT-LCD devic…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.