| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a light guide capable of ensuring detection performance of an object detector.SOLUTION: A light guide 220 is used for an object detector comprising: a light source; and a detection part that receives reflection light reflected on a translucent member where emission light emitted from the light source forms a vehicle and that detects an object adhering to the surface of the translucent member on the basis of the change of the received light amount of the reflection light. The light guide includes: an incidence surface to which the emission light is incident; a detection surface 222 where the emission light is emitted toward the rear surface of the translucent member and where the reflection light is incident; an emission surface from which the reflection light is emitted toward the detection part; and a light guiding part where the emission light and the reflection light are propagated. A translucent member 105 is a surface having a curvature, and the detection surface 222 is a surface having a curvature corresponding to the curvature of the translucent member 105.</p> |
