Patent ID: 6759662
Filing Date: 2004-07-06
Classification: G01N

Abstract:
An optical detection system comprising:a) at least one electromagnetic radiation source directing source radiation at a sample platform containing at least one sample; b) at least one source radiation focusing and collimating means, positioned between the radiation source and the sample for focusing and collimating the directed source radiation into a beam of focused light onto the sample, wherein the beam has an elongated cross-section throughout its length; c) at least one photodetector adapted for receiving light emitted from the sample; d) at least one emitted radiation focusing means, positioned between the photodetector and the sample, for focusing the emitted light from the sample onto the photodetector; and e) at least one source radiation blocking panel, positioned between the source radiation focusing and collimating means and the sample, for blocking extraneous radiation of the beam of focused light and the emitted light, said panel having at least one pinhole wherethrough source radiation can pass, said pinhole provided in a position adjacent to the sample such that focused and collimated source radiation is directed onto the sample.