Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample
Patent
1982-01-04
1984-05-08
Marcus, Michael S.
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing liquid or solid sample
356343, 356442, 422 67, G01N 3354, G01N 3502
Patent
active
044473966
ABSTRACT:
A system for discriminating a precipitation pattern of particles comprises a transparent reaction container which has an inverted conical bottom surface. The precipitation pattern of particles of agglutination, non-agglutination and intermediate state between the agglutination and the non-agglutination are formed based on the immunologic agglutination on the bottom surface of the reaction container. The image of the precipitation pattern is projected through a lens to the electric converting element. A first photodetector is disposed at the center of the image projected on the surface of the photoelectric transducer element, four second photodetectors are disposed around the center of the image, and further five third photodetectors are disposed around the second photodetectors. A first detection signal which correspond to the difference of the outputs from the first detector and the one of third detectors is generated from a first subtracting unit. The outputs of the first and the second detectors are added, the outputs from the third detectors are similarly added, and the difference of the added signal is generated as the second detection signal from a second subtracting unit. The first and the second detection signals are compared by the discriminating unit to discriminate whether or not it is agglutination, non-agglutination or intermediate state between the agglutination and the non-agglutination.
REFERENCES:
patent: 4139303 (1979-02-01), Carlsson et al.
patent: 4341471 (1982-07-01), Hogg et al.
Marcus Michael S.
Olympus Optical Co,. Ltd.
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