| 摘要 |
A hair growth device includes a first light irradiator configured to irradiate an invisible light of invisible wavelength range, for hair growth; and a second light irradiator configured to irradiate a visible light of visible wavelength range. The second light irradiator is configured to direct the visible light to either inside of a light irradiation area of the light from the first light irradiator or outer circumference of the light irradiation area.
|
