Ellipsoid-conic radiation collector and method

Details Ellipsoid-conic radiation collector and method Ellipsoid-conic radiation collector and method

G - Physics

01

N

73/58, 88/113.18

G01N 15/06 (2006.01) G01N 15/14 (2006.01) G01N 21/55 (2006.01) G02B 19/00 (2006.01)

Patent

CA 1126977

ABSTRACT OF THE DISCLOSURE Disclosed is a radiation collector apparatus and method primarily for counting and analyzing a flow of dilute particulate material, such as blood cells, sperm cells and the like, through the use of light detection. The radiation collector apparatus comprises a reflector chamber having an ellipsoidal reflector surface with a pair of ellipsoidal foci defining a first focus, f11, and second focus, f12, and a second reflector surface with a primary focus, f21, positioned at the same point as focus f12, and a secondary focus, f22. The second reflector surface has the configura- tion of one of the conic sections of revolution. In operation the radiation collector apparatus is provided with an intensifed beam of light and a stream of particulate material aligned to intersect the intensifed beam of light at focus f11. Detectable light signals, after two reflec- tions, are received in a focused beam by a photosensitive detector.

323102

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