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 a specular reflection direction of an incident light upon the surface at {HEAD ~ an angle} of {TAIL ~ 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 
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 a specular reflection direction of an incident light upon the surface at { HEAD ~ an angle } of { TAIL ~ 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 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 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