a gain of 0.02 or less of {HEAD ~ a light} reflected in {TAIL ~ the direction} at 20° or more from the specular reflection direction of the incident light, the gain being obtained by normalizing a reflected light intensity using a specular reflection intensity of a standard diffuse plate as 1 
reflected in
a gain of 0.02 or less of { HEAD ~ a light } reflected in { TAIL ~ the direction } at 20 ° or more from the specular reflection direction of the incident light , the gain being obtained by normalizing a reflected light intensity using a specular reflection intensity of a standard diffuse plate as 1
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL 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 OTH OTH OTH OTH OTH OTH