| CPC A61N 5/0624 (2013.01) [A61L 2/084 (2013.01); A61L 2/10 (2013.01); A61N 2005/0661 (2013.01); A61N 2005/0662 (2013.01)] | 20 Claims |
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1. A light radiation device comprising:
a housing;
a substrate provided in the housing;
a light source mounted on the substrate,
wherein the light source includes:
a first light source configured to emit a first light having a visible wavelength band;
a second light source configured to emit a second light having an ultraviolet wavelength band;
a window disposed on the light source and covering the substrate and an upper part of the light source, the window configured to transmit light emitted from at least one of the first light source or the second light source;
a fixer disposed on the substrate and configured to fasten the window to the housing; and
a controller configured to allow the first light and the second light to emit sequentially, or at a predetermined interval, regardless of whether an emission of the first light overlaps with an emission of the second light or not, and
wherein the first light source includes a plurality of first light emitters and the second light source includes a plurality of second light emitters,
wherein a number of the plurality of first light emitters is different from a number of the plurality of second light emitters,
wherein each of the first light source and the second light source includes an optic to control the light emitted from at least one of the first light source or the second light source,
wherein the controller is further configured to allow to (1) apply the first light without interruption, (2) apply the second light discontinuously, and (3) allow an application of the first light to start before an application of the second light.
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