| 摘要 |
A safety mirror lens assembly includes a mirror unit with a mirror lens that has a three-dimensional convex/ellipsoid reflective surface which terminates in an oval or round or other shape peripheral edge. The reflective surface is such that a notional line traced to coincides with the major axis has a first constant radius of curvature and a second notional line traced to coincide with the minor axis has a second constant radius of curvature. The first radius of curvature is substantially greater than the second radius of curvature. The mirror lens is usable for a cross-over mirror for a vehicle, for example, a school bus.
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