Patent ID: 8256907

Claim:
A vehicle reflector comprising: a plurality of retroreflection elements configured to retroreflect an incident light ray in an observation angle direction, wherein the plurality of retroreflection elements include a first reflection surface, a second reflection surface, and a third reflection surface which are adjacently disposed to form a corner portion of a substantially regular hexahedron, the first reflection surface is inclined by 35.264°+angle α 1 with respect to a reference axis, the second reflection surface is inclined by 35.264°+angle α 2 with respect to the reference axis and is disposed at a position rotated by 120° about the reference axis from the first reflection surface, the third reflection surface is inclined by 35.264°+angle α 3 with respect to the reference axis and is disposed at a position rotated by 120° in an opposite direction from the second reflection surface about the reference axis from the first reflection surface, and the angle α 1 , angle α 2 , and angle α 3 are set to satisfy a relation −α 1 ≈α 2 =α 3 .