Patent ID: 11879822
Assignee: HORIBA, LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A particle size distribution measuring device comprising:
a light irradiating device including a light source that irradiates a particle group;
an image capturing device including a first component and an image sensor that captures an image of the particle group; and
a first hardware processor that receives image data of the image of the particle group from the image capturing device,
wherein the light irradiating device and the first component of the image capturing device are arranged on opposing sides of the particle group such that light passes from the light irradiating device through translucent particles in the particle group before reaching the first component of the image capturing device, the light reaching the first component being directed to the image sensor, and depictions of the translucent particles in the image each have light and dark regions resulting from refraction of the light passing through the translucent particles, and
the first hardware processor is configured to determine a difference in light and dark regions in a depiction of a particle depicted in the image, the light and dark regions being a result of refraction of light passing through the particle, and to discriminate whether the particle depicted in the image is a first translucent particle or a second translucent particle based on the difference in the light and dark regions that appear in the depiction of the particle in the image.