Patent ID: 8061859

Claim:
A mirror reflective element suitable for use in an exterior rearview mirror assembly of a vehicle, said mirror reflective element comprising: a glass substrate having a front surface and a rear surface; a principal reflector portion and an auxiliary wide angle curved portion; wherein said principal reflector portion comprises a principal mirror reflector established at said glass substrate; wherein said auxiliary wide angle curved portion comprises a curved recess established at a region of said rear surface of said glass substrate by at least one of grinding and ablating; wherein said auxiliary wide angle curved portion comprises an auxiliary mirror reflector established at said curved recess; wherein said curved recess has a cross-dimension size that is in the range from about 30 millimeters to about 80 millimeters; wherein said curved recess comprises a radius of curvature that is in the range from about 200 millimeters to about 1,000 millimeters; and wherein said curved recess has a maximum recess depth that is in the range from about 0.11 millimeters to about 4.04 millimeters.