Particle sorting apparatus and particle sorting method
AssigneeSony Group Corporation
InventorTsutomu Maruyama
Life of this patent
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Abstract
A technology capable of stably detecting a particle velocity with high accuracy is provided. Provided is a particle sorting apparatus or the like including: an irradiation unit that includes a plurality of light sources and irradiates a particle contained in a fluid with light from the plurality of light sources; a detection unit that includes a plurality of pixels configured to detect, as an event, a luminance change in the light emitted from the particle due to irradiation of the light from each of the light sources; and a sorting control unit that controls sorting of the particle on the basis of event data detected by the detection unit.
Claims12
A particle sorting apparatus comprising:
- an irradiation unit that includes a plurality of light sources and irradiates a particle contained in a fluid with light from the plurality of light sources wherein, in a case where the plurality of light sources is made up of three or more light sources, an event is detected by irradiation with light based on two light sources farthest from each other in a flow direction of the fluid, a distance between the two light sources defined as a detection position interval, wherein the detection position interval is 400 μm or more in order to prevent the light sources from interfering with each other;
- a controller configured to:
- select a first light source and a second light source of the plurality of light sources for irradiating the particle such that the first light source and the second light source have the shortest and second shortest, respectively, excitation wavelengths of the plurality of light sources;
- and
- control the irradiation unit to irradiate the particle with light from the first light source and the second light source of the plurality of light sources;
- a detection unit that includes a plurality of pixels configured to detect, as an event, a luminance change in the light emitted from the particle due to irradiation of the light from each of the light sources;
- and
- a sorting control unit that controls sorting of the particle on a basis of event data detected by the detection unit.
A particle sorting method comprising:
- an irradiation step of including a plurality of light sources and irradiating a particle contained in a fluid with light from the plurality of light sources wherein, in a case where the plurality of light sources is made up of three or more light sources, an event is detected by irradiation with light based on two light sources farthest from each other in a flow direction of the fluid, a distance between the two light sources defined as a detection position interval, wherein the detection position interval is 400 μm or more in order to prevent the light sources from interfering with each other;
- a controlling step comprising:
- selecting a first light source and a second light source of the plurality of light sources for irradiating the particle such that the first light source and the second light source have the shortest and second shortest, respectively, excitation wavelengths of the plurality of light sources;
- and
- controlling an irradiation unit to irradiate the particle with light from the first light source and the second light source of the plurality of light sources;
- a detection step of detecting, as an event, a luminance change in the light emitted from the particle due to irradiation of the light from each of the light sources;
- and
- a sorting control step of controlling sorting of the particle on a basis of event data detected in the detection step.
Dependencies are inferred from the claim text.