Patent ID: 6118127
Filing Date: 2000-09-12
Classification: G01N

Abstract:
An apparatus for detecting a light emitting species, said apparatus comprising:a light source arranged to emit a light beam in a direction of said light emitting species, said light beam causing said light emitting species to output emitted light;a light detector for sensing said emitted light, said light detector comprising:a detector array comprising a plurality of pixels, each pixel arranged to measure an intensity of light impinging thereon;a filter positioned between said detector array and said light emitting species;a lens positioned between said detector array and said light emitting species, said lens selected and arranged to focus said emitted light onto said detector array;a transmission grating beam splitter (TGBS) positioned between said detector array and said light emitting species, said TGBS separating said emitted light from said light emitting species into light components, wherein said emitted light passes through said transmission grating beam splitter without first being collimated; andcomputer means connected to said light detector to receive and process information representative of said light components.