| 摘要 |
<p>PROBLEM TO BE SOLVED: To sufficiently absorb expansion of air which conventionally deforms a lens due to the lack of absorbing capacity without deforming a lens by deforming as expanding a wavy thin part during thermal expansion to absorb the increase in the inner pressure. SOLUTION: The reflex reflector 1 consists of a lens 2 with a reflective cut 2a having retroreflective property formed on the back face and a base member 3 attached as tightly adhered to a rib 2b formed as integrated around the reflective cut 2a of the lens 2 so as to cover the reflective cut 2a. In the reflector 1, a thin part 3a which deforms by increase in the pressure by thermal expansion of the inner air is formed in the part of the base member 3 covering the reflective cut 2a, and the thin part 3a is formed into a wavy form having a wavy cross section.</p> |
