| 摘要 |
A triangular prism mirror mounted adjacent a driver of a vehicle to enable the driver to view the blind spot area without any distortion of vision. The triangular prism mirror unit has three plane surfaces, the rear surface being blocked. By blocking the rear surface of the prism, the image entering one of the front surfaces will appear on the other front surface. Therefore the triangular prism mirror, when properly mounted, provides a clear vision for the driver of a vehicle giving access to the blind spot area.
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