| CPC G01N 21/65 (2013.01) [G01J 1/42 (2013.01); G01N 2201/0633 (2013.01)] | 9 Claims |
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1. A discrete light detection device, comprising:
a shell, comprising a sample well, wherein the sample well is configured to contain a sample;
a light emitter, mounted within the shell, and generating a detection beam; wherein a frequency of the detection beam is a first frequency;
a beam splitter, mounted within the shell; wherein the light emitter shoots the detection beam towards the beam splitter;
a convergent lens, mounted on a side wall of the sample well within the shell; wherein the detection beam is reflected by the beam splitter before shooting into the convergent lens, the detection beam is converged onto the sample contained within the sample well by the convergent lens, and a Raman scattered beam is scattered from the sample; wherein the Raman scattered beam has multiple frequencies, and all of the frequencies of the Raman scattered beam are different from the first frequency;
an optical filter, mounted within the shell; wherein the Raman scattered beam shoots into the beam splitter through the convergent lens, and after being refracted by the beam splitter, the Raman scattered beam shoots into the optical filter; wherein the optical filter filters out light with the first frequency;
a collimation unit, mounted within the shell; wherein after the Raman scattered beam passes through the optical filter, the Raman scattered beam shoots into the collimation unit, and the Raman scattered beam is then collimated by the collimation unit into a collimated beam;
a discrete light detection unit, mounted within the shell; wherein the collimated beam shoots from the collimation unit into the discrete light detection unit, and the discrete light detection unit generates multiple light intensity signals according to the collimated beam; and
a processing unit, electrically connecting the discrete light detection unit, receiving the light intensity signals, and generating a detection result according to the light intensity signals,
wherein the discrete light detection unit further comprises:
multiple light intensity sensors, electrically connecting the processing unit; wherein the light intensity sensors are mounted in a matrix, and
multiple discrete optical filters, mounted at locations corresponding to the light intensity sensors; wherein the discrete optical filters each have a respective filtering bandwidth, and each of the filtering bandwidths is unique; and
wherein the collimated beam shoots towards the discrete optical filters, and after the collimated beam is filtered by the discrete optical filters, the filtered collimated beam shoots towards the light intensity sensors.
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