CPC G01N 21/21 (2013.01) | 23 Claims |
1. A detection device, comprising:
a light generator coupled to a light adjustment module wherein the light generator generates a first polarized light, wherein the first polarized light is reflected by a surface to be detected of a component to form a first echo light, the first echo light forming a component of a signal light; and
a first light detector that acquires a first light intensity distribution information of the signal light, the first light detector including two or more polarization detectors with the polarization detection directions of two different ones of the polarization detectors being different, or the two or more polarization detectors including a non-polarization detector and at least one polarization detector.
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