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US 11,442,001 B2Granted
Light collection from objects within a fluid column
AssigneeInguran, LLC
InventorsAlex Hegyi, Peter Kiesel, Kenneth M. Evans
Life of this patent
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Abstract
An optical arrangement receives output light emanating from an object disposed within a fluid column that crosses an optical refraction boundary of the fluid column between the object and the optical arrangement. The optical arrangement modifies the output light such that the modified output light has an intensity that is more uniform than the output light.
Claims18
A method, comprising:
- receiving output light from an object in a fluid column, wherein the output light crosses an optical refraction boundary of the fluid column and the output light varies as a function of the object position in the fluid column;
- generating an electrical signal in response to the output light;
- compensating for position dependence of the object in the fluid column;
- and
- distinguish between an object of a first type and an object of a second type.
2 more elements
A discrimination system, comprising:
- an excitation light source configured to generate excitation light and to direct the excitation light toward an object in a fluid column, the object emanating output light in response to the excitation light wherein output light from the object in the fluid column varies as a function of the object position in the fluid column;
- an optical arrangement configured to receive the output light, the output light crossing an optical refraction boundary of the fluid column between the object and the optical arrangement;
- an optical detector configured to detect the output light and to provide an electrical signal responsive to the output light;
- a compensation element that compensates for position dependence of the light emanating from the object;
- and
- object type discrimination circuitry configured to discriminate between a first type of object and a second type of object based on the electrical signal.
3 more elements
Dependencies are inferred from the claim text.