Optical detection device and optical detection method
AssigneeNanyang Technological University
InventorsQuan Liu, Yi Hong Ong
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Abstract
According to embodiments of the present invention, an optical detection device is provided. The optical detection device includes an optics arrangement configured to generate an annular illumination pattern to illuminate a portion of a sample and further configured to receive a return light from the portion of the sample illuminated by the annular illumination pattern; and a detector arrangement configured to detect the return light. According to further embodiments of the present invention, an optical detection method is also provided.
Claims17
An optical detection device comprising:
- an optics arrangement configured to generate an annular illumination pattern to illuminate a portion of a sample and further configured to receive a return light from the portion of the sample illuminated by the annular illumination pattern;
- a detector arrangement configured to detect the return light;
- and
- a fiber assembly arranged to receive the return light and to optically couple the return light to the detector arrangement,
- wherein the fiber assembly comprises a plurality of dead fibers and a plurality of live fibers, wherein the plurality of dead fibers and the plurality of live fibers are arranged in a plurality of concentric patterns at one end of the fiber assembly to receive the return light;
- wherein the plurality of live fibers are arranged in a plurality of linear blocks at an opposite end of the fiber assembly;
- wherein the optics arrangement further comprises a light director arranged to optically couple the return light towards the detector arrangement;
- wherein the fiber assembly is arranged between the detector arrangement and the light director;
- wherein a number of linear blocks corresponds to a number of concentric patterns;
- and
- wherein the live fibers of each concentric pattern are arranged in a respective linear block of the plurality of linear blocks so that each linear block of the plurality of linear blocks corresponds to one concentric pattern.
An optical detection method comprising:
- generating an annular illumination pattern;
- illuminating a portion of a sample with the annular illumination pattern;
- receiving, by a fiber assembly, a return light from the portion of the sample illuminated by the annular illumination pattern and optically coupling the return light for detection;
- and
- detecting the return light from the portion of the sample illuminated by the annular illumination pattern;
- wherein the fiber assembly comprises a plurality of dead fibers and a plurality of live fibers, wherein the plurality of dead fibers and the plurality of live fibers are arranged in a plurality of concentric patterns at one end of the fiber assembly to receive the return light;
- wherein the plurality of live fibers are arranged in a plurality of linear blocks at an opposite end of the fiber assembly;
- wherein a number of linear blocks corresponds to a number of concentric patterns;
- and
- wherein the live fibers of each concentric pattern are arranged in a respective linear block of the plurality of linear blocks so that each linear block of the plurality of linear blocks corresponds to one concentric pattern.
Dependencies are inferred from the claim text.