Animal repellent device and animal repellent method

摘要

PROBLEM TO BE SOLVED: To provide an animal repellent device and an animal repellent method which are devices for repelling animals provided with a new mechanism for displacing a light irradiation region of light from a condensing unit, which is suitable for miniaturization. An animal repellent device 10 determines a light source 11 that irradiates a laser beam L, a diffraction grating 12 that changes the traveling direction of the laser beam L emitted from the light source 11, and a relative position of the diffraction grating 12 with respect to the light source 11. By changing the position of the light irradiation region SP1 of the laser beam L that has passed through the diffraction grating 12 on the floor surface F to be irradiated. [Selection diagram] Fig. 1