Abstract: A flow cytometer has a flow cell through which a sample flows and at least one laser emitting an excitation beam for illuminating a corresponding interrogation region in the flow cell. Scattered and fluorescence light from each interrogation region is collected by one or more input fibers for that region, and the input fiber(s) are fed to a dispersion module for that interrogation region that disperses the incoming light into different spectral regions. The dispersed light is conveyed, such as by a plurality of output fibers, to one or more photosensitive detectors. Thus, time multiplexed light signals may be delivered to a detector whereby several unique light signals can be measured by a single detector.
Type:
Grant
Filed:
April 27, 2006
Date of Patent:
May 4, 2010
Assignee:
Advanced Cytometry Instrumentation Systems, Inc.
Inventors:
Martin K. Casstevens, Ryszard Burzynski, John Weibel, Alexander Kachynski