Optics: measuring and testing – By shade or color – With color transmitting filter
Patent
1989-08-07
1991-10-29
McGraw, Vincent P.
Optics: measuring and testing
By shade or color
With color transmitting filter
2504612, 356318, 356364, G01N 2121, G01N 2164
Patent
active
050610759
ABSTRACT:
The sperm count of a specimen of sperm is measured by exciting the specimen with a beam of substantially monochromatic light, then measuring the intensity of the intrinsic native fluorescence emitted or the scattered light from the specimen, and then determining the sperm count using the intensity measurements. The motitily of a specimen of sperm is determined by exciting the specimen with a beam of substantially monochromatic polarized light, then measuring the intensity of the parallel and perpendicular components of the intrinsic native fluorescene emitted or the intensity of the scattered light from the specimen at a predetermined wavelength; and then determining the motitily using the two intensity measurements with parallel and perpendicular polarizations.
REFERENCES:
patent: 4056724 (1977-11-01), Harte
patent: 4115699 (1978-09-01), Mizuta et al.
patent: 4559309 (1985-12-01), Evenson et al.
patent: 4589774 (1986-05-01), Dupree et al.
patent: 4601578 (1986-07-01), Woolhouse et al.
Alfano Robert R.
Nagamatsu George R.
Oka Nobutoshi
Keesee LaCharles P.
Kriegsman Edward M.
Kriegsman Irving M.
McGraw Vincent P.
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