| 摘要 |
A reflector for a vehicle can include a plurality of retroreflective elements configured to retroreflect incident light incident parallel to a horizontally-arranged reference axis, obliquely upward at a prescribed angle with respect to the reference axis. The plurality of retroreflective elements can each include: a first reflection surface inclined at an angle ANG1 to the reference axis; a second reflection surface inclined at an angle ANG2 to the reference axis, and formed in a position reached after the second reflection surface is rotated from the first reflection surface through an angle ROT1 around the reference axis as a center; and a third reflection surface inclined at an angle ANG3 to the reference axis and formed in a position reached after the third reflection surface is rotated from the first reflection surface through an angle ROT2 around the reference axis as a center in a direction opposite to the second reflection surface, the first to third reflection surfaces arranged so as to form corners of a substantial cube, wherein a condition of following expressions is satisfied: ANG2>ANG3; ANG2>ANG1; and ROT1>ROT2>120 degrees.
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