EXTERIOR MIRROR ELEMENT WITH WIDE ANGLE PORTION
First Claim
1. 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 rear surface of 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;
wherein said curved recess has a maximum recess depth that is in the range from about 0.11 millimeters to about 4.04 millimeters;
wherein said auxiliary wide angle curved portion is inboard of a perimeter edge of said mirror reflective element;
wherein said principal reflector portion of said mirror reflective element surrounds said auxiliary wide angle curved portion of said mirror reflective element; and
wherein said curved recess is generally circular-shaped.
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Accused Products
Abstract
A mirror reflective element suitable for use in an exterior rearview mirror assembly of a vehicle includes a glass substrate and a principal reflector portion and an auxiliary wide angle curved portion. The auxiliary wide angle curved portion has a curved recess established at a region of the rear surface of the glass substrate by at least one of grinding and ablating. The curved recess may have a cross-dimension size that is in the range from about 30 millimeters to about 80 millimeters, and may have a radius of curvature that is in the range from about 200 millimeters to about 1,000 millimeters, and may have a maximum recess depth that is in the range from about 0.11 millimeters to about 4.04 millimeters.
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Citations
74 Claims
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1. A mirror reflective element suitable for use in an exterior rearview mirror assembly of a vehicle, said mirror reflective element comprising:
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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 rear surface of 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; wherein said curved recess has a maximum recess depth that is in the range from about 0.11 millimeters to about 4.04 millimeters; wherein said auxiliary wide angle curved portion is inboard of a perimeter edge of said mirror reflective element; wherein said principal reflector portion of said mirror reflective element surrounds said auxiliary wide angle curved portion of said mirror reflective element; and wherein said curved recess is generally circular-shaped. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. A mirror reflective element suitable for use in an exterior rearview mirror assembly of a vehicle, said mirror reflective element comprising:
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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 rear surface of 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 60 millimeters; wherein said curved recess comprises a radius of curvature that is in the range from about 200 millimeters to about 800 millimeters; wherein said curved recess has a maximum recess depth that is in the range from about 0.11 millimeters to about 2.26 millimeters; wherein said auxiliary wide angle curved portion is inboard of a perimeter edge of said mirror reflective element; wherein said principal reflector portion of said mirror reflective element surrounds said auxiliary wide angle curved portion of said mirror reflective element; wherein said glass substrate comprises a curved glass substrate and where the radius of curvature of said curved glass substrate is larger than the radius of curvature of said curved recess; and wherein said principal mirror reflector of said principal reflector portion comprises a principal reflecting coating and wherein said auxiliary mirror reflector of said auxiliary wide angle curved portion comprises a wide angle reflector coating, and wherein said wide angle reflector coating of said auxiliary mirror reflector of said auxiliary wide angle curved portion and said principal reflecting coating of said principal reflector portion comprise the same material and wherein said same material substantially coats the entire rear surface of said glass substrate. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56)
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57. A mirror reflective element suitable for use in an exterior rearview mirror assembly of a vehicle, said mirror reflective element comprising:
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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 rear surface of 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 40 millimeters to about 50 millimeters; wherein said curved recess comprises a radius of curvature that is in the range from about 200 millimeters to about 600 millimeters; wherein said curved recess has a maximum recess depth that is in the range from about 0.5 millimeters to about 0.78 millimeters; wherein said auxiliary wide angle curved portion is inboard of a perimeter edge of said mirror reflective element; wherein said principal reflector portion of said mirror reflective element surrounds said auxiliary wide angle curved portion of said mirror reflective element; wherein said glass substrate has a thickness between said front surface and said rear surface of less than 3 millimeters; wherein, when an exterior rearview mirror assembly equipped with said mirror reflective element is normally mounted at the side of a vehicle, said auxiliary wide angle curved portion is generally disposed at an outboard upper region of said mirror reflective element relative to the side of the vehicle; wherein said exterior rearview mirror assembly comprises a passenger-side exterior rearview mirror assembly; wherein said mirror reflective element comprises a fixed reflectance non-electro-optic mirror reflective element; wherein said glass substrate comprises a curved glass substrate and where the radius of curvature of said curved glass substrate is larger than the radius of curvature of said curved recess; wherein said principal mirror reflector of said principal reflector portion comprises a principal reflecting coating and wherein said auxiliary mirror reflector of said auxiliary wide angle curved portion comprises a wide angle reflector coating, and wherein said wide angle reflector coating of said auxiliary mirror reflector of said auxiliary wide angle curved portion and said principal reflecting coating of said principal reflector portion comprise the same material and wherein said same material substantially coats the entire rear surface of said glass substrate; and wherein said same material comprises a metal and wherein said metal is deposited via sputtering. - View Dependent Claims (58, 59)
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60. A mirror reflective element suitable for use in an exterior rearview mirror assembly of a vehicle, said mirror reflective element comprising:
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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 rear surface of 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 40 millimeters to about 50 millimeters; wherein said curved recess comprises a radius of curvature that is in the range from about 200 millimeters to about 700 millimeters; wherein said curved recess has a maximum recess depth that is less than about 1.63 millimeters; wherein said glass substrate has a thickness between said front surface and said rear surface of less than 3 millimeters; wherein, when an exterior rearview mirror assembly equipped with said mirror reflective element is normally mounted at the side of a vehicle, said auxiliary wide angle curved portion is generally disposed at an outboard upper region of said mirror reflective element relative to the side of the vehicle; wherein said mirror reflective element comprises a fixed reflectance non-electro-optic mirror reflective element; and wherein said principal mirror reflector of said principal reflector portion comprises a principal reflecting coating and wherein said auxiliary mirror reflector of said auxiliary wide angle curved portion comprises a wide angle reflector coating, and wherein said wide angle reflector coating of said auxiliary mirror reflector of said auxiliary wide angle curved portion and said principal reflecting coating of said principal reflector portion comprise the same material and wherein said same material substantially coats the entire rear surface of said glass substrate. - View Dependent Claims (61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74)
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Specification