To provide a sterilizer that can simply sterilize the object matters to be sterilized, for example, unhusked rice grains, seeds, wheat grains, barley grains, soybeans, granular raw food products and the like.
This sterilizer comprises an inclined duct 4 that is mounted to the upper part of the platform 1, equipped with, on one end, the entrance 2 for introducing the flow of the object matter to be sterilized, for example, unhusked rice grains, seeds, wheat or barley grains, soybeans, small grains of food product and the like and with the out-flowing exit 3 on the other; the hopper 5 that is connected to the inclined duct 4 and stores the object matter to be sterilized. The laser beam output from the light source 6 is shot to the rod lens 7 to expand the beam to 90° angle and the resultant light screen is irradiated to the objective matter to be sterilized. The quartz glass 8 is laid on the bottom of the inclined duct 4, the reflection plate that can reflect the light screen beam and irradiate the objective matter to be sterilized is set on the lower face of the quartz glass, and the inclined duct 4 is controlled in its inclination angle by the plat form 1.
MACHIYAMA HARUNAGA
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