Light detection module and apparatus for detecting target analyte comprising the same

A light detection module comprising:

• an optical fiber mounting unit having a plurality of optical fibers comprising at least one excitation fiber and at least one emission fiber disposed on one side thereof;
• a filter wheel spaced apart from an opposite side of the optical fiber mounting unit, the filter wheel having a plurality of filters;
• a drive unit for rotating the filter wheel;
• a light source unit for generating excitation light passing through the filter wheel to said at least one excitation fiber;
• and
• a detection unit for detecting emission light passing through the filter wheel from said at least one emission fiber,
• wherein the plurality of filters includes a plurality of excitation light filters for filtering the excitation light and a plurality of emission light filters for filtering the emission light,
• wherein the drive unit comprises a drive shaft and a motor for rotating the drive shaft, and the filter wheel comprises a central shaft at a central axis linearly aligned to the drive shaft, wherein the filter wheel rotates about the central axis,
• wherein the light source unit comprises a plurality of light sources, and the detection unit comprises a plurality of detectors,
• wherein each of the plurality of light sources is positioned away from the central axis by a first radial distance, and each of the plurality of detectors is positioned away from the central axis by a second radial distance,
• wherein in the filter wheel, the plurality of excitation light filters is positioned away from the central axis by the first radial distance, and the plurality of emission light filters is positioned away from the central axis by the second radial distance,
• wherein a partition portion is formed between the plurality of light sources and the plurality of detectors,
• wherein the plurality of light sources, the plurality of detectors and the partition portion are disposed on a single plate, and
• wherein the filter wheel comprises a protruding portion formed between the plurality of excitation light filters and the plurality of emission light filters, and the protruding portion overlaps at least partially with the partition portion to block light leakage from between the plurality of light sources and the plurality of detectors.