Patent ID: 11867918
Assignee: KYOCERA SOC CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 1:
2. A light source apparatus used for a flow cytometer, which is configured to cause a plurality of particles to flow in a flow cell in such a manner to follow one after another in a flow cell length direction and to irradiate the plurality of particles with a laser beam from a side of a flow thereof, the light source apparatus for irradiating the particles with the laser beam, comprising:
a plurality of semiconductor lasers that is configured to emit laser beams having different wavelengths from each other;
a plurality of collimating lenses that is configured to collimate the laser beams emitted from the plurality of semiconductor lasers each in a spread light state;
a beam conversion unit for each wavelength that is configured to match the flow cell length direction with a slow axis direction of the respective laser beams collimated by the collimating lenses in the flow cell after reducing the beam diameter of each of the laser beams in a fast axis direction and increasing the beam diameter in the slow axis direction;
a beam combiner that is configured to combine the laser beams passed through the beam conversion unit for each wavelength; and
a focusing lens that is configured to focus the laser beams combined by the beam combiner in the flow cell.