In the case of the present embodiment, the light of a specific wavelength region refers to blue light of about 450 nm, green light of about 550 nm and {HEAD ~ red light} of {TAIL ~ about 650 nm} in wavelength 
of
In the case of the present embodiment , the light of a specific wavelength region refers to blue light of about 450 nm , green light of about 550 nm and { HEAD ~ red light } of { TAIL ~ about 650 nm } in wavelength
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH