| CPC G01N 21/65 (2013.01) [G01J 3/0208 (2013.01); G01J 3/0218 (2013.01); G01J 3/4412 (2013.01)] | 22 Claims |
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1. A Raman spectroscopic device that includes a light capturing unit and a light analysis unit disposed away from a target, includes a light sensor, a light collection lens, a diffraction grating, and a light passing lens at the light analysis unit, produces scattered light at the target by generating and then emitting light to the target by means of one of the light analysis unit and the light capturing unit, captures the scattered light from the target and transmits the scattered light to the light analysis unit by means of the light capturing unit, decomposes the scattered light in accordance with wavelengths at the diffraction grating while sequentially passing the scattered light through the light passing lens and the diffraction grating by means of the light analysis unit, and collects and transmits the decomposed scattered light to the light sensor by means of the light collection lens,
wherein the light capturing unit
includes one first light guide and at least one second light guide that are sequentially arranged toward the target from the light analysis unit, and
transmits the light to the target through at least one of the first light guide and the second light guide or receives the scattered light from the target through the first light guide and the second light guide and transmits the scattered light to the light passing lens.
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