SYSTEM AND METHOD FOR FLUORESCENCE EXCITATION AND DETECTION HAVING DISTINCT OPTICAL PATHS

摘要

A system and method for fluorescence excitation and detection having distinct optical paths is disclosed. A system for detecting fluorescence comprises a light source(40) that emits an excitation light (48) into an illumination tube (44); a plurality of collection optics (39) located around an aperture (47) in the illumination tube for collecting fluorescence; and a detector (53) for determining the amount of fluorescence. A method for detecting fluorescence comprises emitting an excitation light (48) from a light source (40) into an illumination tube (44); directing the excitation light to an excitation filter (62); illuminating a sample with the excitation light (48) to generate an emission light; and detecting the optical characteristics of the emission light using a plurality of collection optics (39) located around the illumination tube (44).