Patent ID: 8562157

Claim:
An extended field of view exterior mirror element suitable for use in a driver-side exterior sideview mirror assembly on a vehicle, said extended field of view exterior mirror element comprising: a reflective single glass element comprising a substantially flat inboard reflective glass portion and a multiradius curved outboard reflective glass portion; said substantially flat inboard reflective glass portion having a radius of curvature greater than at least approximately 12,000 millimeters; wherein said substantially flat inboard reflective glass portion provides a first primary field of view rearward of a vehicle equipped with said driver-side exterior sideview mirror assembly; wherein, when said driver-side exterior sideview mirror assembly is attached at the driver-side of the equipped vehicle, said substantially flat inboard reflective glass portion provides to the driver of the equipped vehicle a rearward field of view that subtends an angle that is not greater than approximately 20 degrees with respect to the driver-side of the equipped vehicle; wherein said multiradius curved outboard reflective glass portion provides a second auxiliary field of view rearward of the equipped vehicle; wherein said second auxiliary rearward field of view extends said first primary rearward field of view further outward from the driver-side of the equipped vehicle; wherein said multiradius curved outboard reflective glass portion curves from said substantially flat inboard reflective glass portion to an outermost most curved region of said reflective single glass element; wherein the radius of curvature of said multiradius curved outboard reflective glass portion decreases as said multiradius curved outboard reflective glass portion curves from said substantially flat inboard reflective glass portion to said outermost most curved region of said reflective single glass element; and wherein said reflective single glass element comprises a demarcation that generally demarcates said substantially flat inboard reflective glass portion from said multiradius curved outboard reflective glass portion.