| CPC G01N 15/1434 (2013.01) [G02B 3/0006 (2013.01); G02B 13/143 (2013.01); G01N 15/149 (2024.01); G01N 2015/1493 (2013.01)] | 5 Claims |
|
1. A microparticle measurement device, comprising:
a plurality of objective lenses for excitation light irradiation in a plurality of wavelength regions, wherein
the plurality of objective lenses includes a first objective lens and a second objective lens,
the plurality of objective lenses is configured to control irradiation of microparticles flowing through a flow path with the excitation light,
the first objective lens is configured to detect first forward scattered light in an ultraviolet region of the plurality of wavelength regions,
the first forward scattered light in the ultraviolet region is emitted from the microparticles by the excitation light with which the microparticles are irradiated by the second objective lens,
the second objective lens is configured to detect second forward scattered light in a visible region of the plurality of wavelength regions, and
the second forward scattered light in the visible region is emitted from the microparticles by the excitation light with which the microparticles are irradiated by the first objective lens;
a third objective lens different from the plurality of objective lenses, wherein
the third objective lens is configured to detect first side scattered light in the ultraviolet region emitted from the microparticles and second side scattered light in the visible region emitted from the microparticles, and
an axis of the third objective lens is non-axial to an axis of the first objective lens and an axis of the second objective lens;
a light detection unit configured to detect optical information emitted from the microparticles; and
an analysis device configured to analyze the optical information detected by the light detection unit.
|