A light source device including at least one first substrate, at least one second substrate, first light emitting elements, which emit red color light, and second light emitting elements, which emit infrared rays. The first light emitting elements are disposed at the first substrate, and the second light emitting elements are disposed at the second substrate. The light source device further has a light damping member, which dampens the infrared rays, and a transmitting member through which the infrared rays pass. The light damping member is disposed to correspond to the first substrate, and the transmitting member is disposed to correspond to the second substrate.

 
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