The ratio of I/I is more than 0.1 to 0.6, where I is an intensity of a light reflected toward an arbitrary angle α of 10° or less from {HEAD ~ a specular reflection direction} of {TAIL ~ an incident light} upon the surface at an angle of 5° to 30° from the surface normal, and I is an intensity of a reflected light deviated from the arbitrary angle α by 1° in a wide angle direction 
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The ratio of I / I is more than 0.1 to 0.6 , where I is an intensity of a light reflected toward an arbitrary angle α of 10 ° or less from { HEAD ~ a specular reflection direction } of { TAIL ~ an incident light } upon the surface at an angle of 5 ° to 30 ° from the surface normal , and I is an intensity of a reflected light deviated from the arbitrary angle α by 1 ° in a wide angle direction
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 HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL 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 OTH OTH OTH