| abstract |
PROBLEM TO BE SOLVED: To provide a light irradiation device capable of irradiating light to a target site under the skin safely and efficiently. A light irradiation apparatus includes a laser light emitting element 110 for irradiating light through a convex lens 114 corresponding to an irradiation port, and a plurality of skin extension members 130a to 130d that push the skin 20 in a radial direction around the convex lens 114. And have. Light is irradiated through the convex lens 114 in a state where the skin 20 is pushed and spread by the plurality of skin extension members 130a to 130d. [Selection] Figure 4 |