Patent ID: 11925815
Assignee: nan
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A light irradiating toothbrush comprising:
a grip;
a head operatively coupled to the grip, wherein the head includes a detachable bristle plate in which brushing bristles made of at least one waveguide are disposed; and
a light source unit disposed inside the head and under the bristle plate that includes a plurality of light sources radiating light through the waveguides of the brushing bristles, wherein the light source unit includes a first light source radiating short-wavelength light and a second light source radiating long-wavelength light, the short-wavelength light source and the long-wavelength light source being disposed at different distances from the bristle plate, in accordance with the magnitude of the wavelengths,
further wherein the plurality of light sources is a set of light sources including a first sub-set that includes at least one first light source radiating short-wavelength light, and a second sub-set that includes at least one second light source radiating long-wavelength light, and
the light sources of the light source unit are alternately arranged under the bristle plate,
wherein the light irradiating toothbrush further comprising a back light source unit under the bristle plate inside the head that includes a plurality of back light sources radiating light to a back of the head, wherein the back light source unit includes a first back light source radiating short-wavelength light and a second back light source radiating long-wavelength light, the short-wavelength light source and the long-wavelength light source being disposed at different distances from the back of the head, in accordance with the magnitude of the wavelengths,
further wherein the plurality of back light sources is a set of light sources including a first sub-set that includes at least one first back light source radiating short-wavelength light, and a second sub-set that includes at least one second back light source radiating long-wavelength light, and
the light sources of the back light source unit are alternately arranged under the bristle plate.