Yeong Min YOON,Hee Ho BAE,A Young LEE,Chung Hoon LEE
申请号：
US16821024
公开号：
US20200298016A1
申请日:
2020.03.17
申请国别(地区):
US
年份:
2020
代理人:
摘要：
A light irradiation device includes a light source unit emitting a light to a wounded are of a skin and a controller controlling the light source unit. The light source unit includes a substrate, at least one first light source disposed on the substrate and emitting a first light in a blue wavelength band, and at least one second light source disposed on the substrate and emitting a second light in a red wavelength band to a near-infrared wavelength band. The first and second lights have different skin penetration depths from each other depending on a wavelength.
