| 摘要 |
Two planar bodies of reflective material are coupled together, one before the other, and in line with the line of vision from an intended observation point. The base reflective body is designed to be attached to an object, vehicle, or the like. The second reflective body is movably coupled to the base reflective body. Movement of the base reflective body induces relative movement of the two reflective bodies. A counter weight is attached to the second reflective body to increase this relative movement. Enhanced visibility is provided not only by the relative movement of the two reflective bodies, but also by dynamic prismatic action, i.e. the reflection by the base reflector of light transmitted through the top reflective body.
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