US 12,379,304 B2
Particle analyzer, particle analysis method, and optical measurement device
Takeshi Hatakeyama, Chiba (JP); Satoshi Nagae, Tokyo (JP); Masanobu Nonaka, Kanagawa (JP); Kenji Ishida, Tokyo (JP); Naomichi Kikuchi, Kanagawa (JP); and Takashi Kato, Tokyo (JP)
Assigned to Sony Group Corporation, Tokyo (JP)
Appl. No. 18/271,408
Filed by Sony Group Corporation, Tokyo (JP)
PCT Filed Dec. 9, 2021, PCT No. PCT/JP2021/045300
§ 371(c)(1), (2) Date Jul. 7, 2023,
PCT Pub. No. WO2022/153736, PCT Pub. Date Jul. 21, 2022.
Claims priority of application No. 2021-004282 (JP), filed on Jan. 14, 2021.
Prior Publication US 2024/0068925 A1, Feb. 29, 2024
Int. Cl. G01N 15/14 (2024.01); G01N 15/02 (2024.01); G01N 15/0227 (2024.01); G01N 15/1434 (2024.01); G01N 21/05 (2006.01); G01N 21/64 (2006.01); G02B 21/00 (2006.01); G02B 21/02 (2006.01); G01N 15/10 (2006.01); G01N 15/149 (2024.01)
CPC G01N 15/1434 (2013.01) [G01N 15/0227 (2013.01); G01N 15/1459 (2013.01); G01N 21/05 (2013.01); G01N 21/64 (2013.01); G02B 21/00 (2013.01); G02B 21/02 (2013.01); G01N 2015/1006 (2013.01); G01N 2015/144 (2013.01); G01N 15/149 (2024.01); G01N 2015/1493 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A particle analyzer comprising:
a light source that emits excitation light including light having a wavelength of 400 nm or less;
a lens structure that collects the excitation light at a predetermined position in a flow path;
a detection unit that detects light emitted from a particle as the particle flowing through the predetermined position is excited by the excitation light; and
a processing unit that processes detection data acquired by the detection unit, wherein
the lens structure comprises:
a plurality of lenses arranged along an optical axis of the excitation light; and
a lens frame holding the plurality of lenses, and
at least one of the plurality of lenses is positioned in the lens frame by abutting on a lens adjacent to the at least one lens.