Optics: measuring and testing – For optical fiber or waveguide inspection
Patent
1994-09-29
1995-11-28
Warden, Robert J.
Optics: measuring and testing
For optical fiber or waveguide inspection
356 39, 2504612, G01N 2164, G01N 2105
Patent
active
054712947
ABSTRACT:
Disclosed is a flow imaging cytometer having a flow cell one side of which is irradiated with excitation light, in which wavelength selecting means for reflecting excitation light and transmitting fluorescence or reflecting means for reflecting excitation light is provided on the side of the flow cell opposite the side irradiated, thereby increasing the intensity of the excitation light so that the intensity of fluorescence emitted from an irradiated cell is increased. It is possible to pick up the fluorescent images at all times. The cytometer includes a light source for emitting the excitation light, dichroic mirrors which construct the wavelength selecting means, a photomultiplier for detecting fluorescence from irradiated cells, and a cell flow-by decision circuit which, based upon a detection signal from the photomultiplier, determines whether a detected cell of interest is suited to pick-up of a fluorescent image and produces a prescribed control signal for controlling an electronic shutter.
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Snider Theresa T.
TOA Medical Electronics Co., Ltd.
Warden Robert J.
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