Apparatus for effecting automatic analysis
AssigneeOlympus Optical Co., Ltd.
InventorTakayuki Aihara
Life of this patent
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Abstract
An automatic chemical analyzer comprising a turntable is disclosed which holds a number of cuvettes containing test liquids to be analyzed and is rotated about a center axis step by step at a given repetition rate, a panchromatic light source is arranged to project radially a measuring light beam from the center axis to the cuvettes, and a light detector is arranged in the center axis to receive the measuring light beam transmitted through the test liquid via prisms. A rotating filter holder is arranged in front of the light detector to insert given filter elements into the measuring light beam path so as to effect colorimetric measurement with desired wavelengths.
Claims21
An apparatus for effecting automatic analysis of test liquids contained in respective cuvettes comprising:
- a cuvette turntable for supporting a number of cuvettes along a circle, said cuvettes being rotatable about a center axis of the circle;
- means for rotating intermittently the cuvette turntable about said center axis at a given repetition rate;
- a fixed light source arranged to project a measuring light beam along the center axis;
- a rotatable first optical member rotatable about said center axis for deflecting radially with respect to the cuvette turntable the measuring light beam toward the cuvettes held in the cuvette turntable;
- a plurality of second optical members arranged at a plurality of positions outside the cuvette travelling circle for receiving the measuring light beam transmitted through the cuvettes and deflecting the light beam toward the center axis;
- a third optical member arranged at the center axis integrally with the first optical member for deflecting the measuring light beam along the center axis;
- a single light detector arranged on the center axis to receive the light beam deflected by the third optical member;
- and
- means for rotating the first and third optical members about the center axis at a higher rate than that of the cuvette turntable whereby, while the cuvette turntable is stopped, the cuvettes situated at the positions corresponding to the second optical members are successively scanned by rotating the first and third optical members.
An apparatus for effecting automatic analysis of test liquids contained in respective cuvettes comprising:
- a cuvette turntable for supporting a number of cuvettes along a circle, said cuvettes being rotatable about a center axis of the circle;
- means for rotating intermittently the cuvette turntable about said center axis at a given repetition rate;
- a fixed light source arranged to project a measuring light beam along the center axis;
- a rotatable optical member rotatable about said center axis for deflecting radially with respect to the cuvette turntable, the measuring light beam toward the cuvettes held in the cuvette turntable;
- a plurality of light detectors arranged at a plurality of positions outside the cuvette travelling circle for receiving the measuring light beam transmitted through the cuvettes;
- and
- means for rotating the optical member about the center axis at a higher rate than that of the cuvette turntable;
- whereby while the cuvette turntable is stopped, the cuvettes situated at the positions corresponding to the light detectors are successively scanned by rotating the optical member.
An apparatus for effecting automatic analysis of test liquids contained in respective cuvettes comprising:
- a cuvette turntable for supporting a number of cuvettes along a circle, said cuvettes being rotatable about a center axis of the circle;
- means for rotating intermittently the cuvette turntable about said center axis at a given repetition rate;
- a fixed light source arranged on the center axis to sequentially project a measuring light beam toward each cuvette held in the cuvette turntable;
- a plurality of light detectors arranged at a plurality of positions outside the cuvette travelling circle for receiving each measuring light beam transmitted through a cuvette;
- a plurality of filter elements which allow passage of different wavelengths;
- a filter holder rotatably supporting said filter elements about the center axis;
- means for rotating the filter holder about the center axis to simultaneously insert a given desired filter element in each path between said light source and said light detectors;
- and
- an optical system and plurality of slit holes fixed between the filter holder and cuvettes for converging and directing the light fluxes sequentially transmitted through the filters onto the cuvettes.
Dependencies are inferred from the claim text.