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).
摘要:
A compact optical module for fluorescence excitation and detection and methods for using same are disclosed. An apparatus for detecting fluorescence includes a substrate base, a detector adjacent to the substrate base for determining the amount of fluorescence, an emission filter adjacent to the detector, a light source for emitting an excitation light, the light source engaging the emission filter, and a cover formed over the detector, the emission filter, and the light source.
摘要:
A system and method for a pulsed light source (40) used in detecting fluorescence from a plurality of samples (94) of biological material discretely, continuously or intermittently during thermal cycling of DNA to accomplish a polymerase chain reaction (PCR). An apparatus for sampling at least one sample (94) of a biological material comprises a light source (40) that emits a pulsed excitation light (42) that interacts with the sample (94) and a detector (50) sensitive to fluorescence emitted from the sample (94). A method of sampling at least one sample (94) to detect fluorescence comprises generating a pulsed excitation light (42) with a pulsed light source (40); directing the pulsed excitation light (42) into the sample (94); illuminating a sample (94) with the pulsed excitation light (42) to generate an emission light; and detecting the optical characteristics of the emission light.