Patent ID: 8652188
Filing Date: 2014-02-18
Classification: A61B,A61N

Abstract:
1. A light irradiation device, comprising: a light source giving pulses of light in a wavelength range from 400 to 1200 nm; and a light guide distributing the pulses of light given from the light source in energy intensity of 0.2 to 10 J/cm2 at a predetermined distance from an outgoing surface, wherein the light guide includes a light orientation controller adjusting the pulses of light from the light source, wherein the light irradiation device cuts off a wavelength range using a filter, and wherein the light orientation controller includes a light shielding portion made of an opaque material not transmitting light and an emission portion provided at a substantially rectangular open end of the light shielding portion, and the emission portion is partitioned by a plurality of partition members into a plurality of compartments arranged side by side so as to equalize the intensity of light at a predetermined distance from the outgoing surface.