| 摘要 |
PURPOSE:To confirm the back without any disturbance of reflected light of a rearview mirror by attaching a dimming filter which covers the rearview mirror. CONSTITUTION:The dimming filter 2 is attached over the rearview mirror. Consequently, the filter cuts off unnecessary light rays from above normally to confilm the back easily, and trouble on the mirror surface 3 due to rain, snow, frost, etc., is prevented. This dimming filter 2 is given a shade of color and a specially thick filter part is moved to cover a part where a reflected light beam is intense and its circumference; and the mirror surface of a thin filter part is made conspicuous to secure the back confirmation. |
