Rearview mirror for motor vehicles
First Claim
1. A rearview mirror for motor vehicles moveable between a perpendicular viewing angle to a tilted position 45°
- from the perpendicular viewing angle, comprising;
a layer substrate; and
a coating applied to the layer substrate, the coating including a reflective mirror coating and an intermediate layer disposed between the reflective mirror coating and the layer substrate, wherein a magnitude of a parameter for coloring C=√
{square root over (a02+b02)} is greater than 5 according to CIE and a color change Δ
E resulting from a tilting of the rearview mirror to the tilted position as a function of a magnitude of a color value a0 is given by;
Δ
E≦
½
·
(|a0|−
8) when a0≦
−
20;
Δ
E≦
6 when −
20≦
a0≦
0; and
Δ
E≦
½
·
(a0+12), when a0>
0.
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Accused Products
Abstract
A rearview mirror for motor vehicles having a layer substrate and a coating applied onto the back thereof, includes a reflective mirror coating and an intermediate layer, which may be made of a semiconductor material, arranged between the reflective mirror coating and the layer substrate. The value of the coloring parameter C=√{square root over (a02+b02)} is greater than 5 and the color change ΔE resulting from a tilting of the rearview mirror by 45° from the perpendicular viewing angle as a function of the magnitude of the color value α0 according to CIE is not greater than
ΔE<½·(|a0|−8) wherein a0≦−20,
ΔE<6 wherein −20≦a0≦0, and
ΔE≦½·(a0+12), especially ≦½·(a−3), preferably ≦⅓·(a0−3), advantageously ≦⅙·(a0−3), wherein a0≦0. The intermediate layer may be made of semiconductor material.
17 Citations
28 Claims
-
1. A rearview mirror for motor vehicles moveable between a perpendicular viewing angle to a tilted position 45°
- from the perpendicular viewing angle, comprising;
a layer substrate; and
a coating applied to the layer substrate, the coating including a reflective mirror coating and an intermediate layer disposed between the reflective mirror coating and the layer substrate, wherein a magnitude of a parameter for coloring C=√
{square root over (a02+b02)} is greater than 5 according to CIE and a color change Δ
E resulting from a tilting of the rearview mirror to the tilted position as a function of a magnitude of a color value a0 is given by;
Δ
E≦
½
·
(|a0|−
8) when a0≦
−
20;
Δ
E≦
6 when −
20≦
a0≦
0; and
Δ
E≦
½
·
(a0+12), when a0>
0. - View Dependent Claims (2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
- from the perpendicular viewing angle, comprising;
-
7. The rearview mirror as recited in claim 7, wherein the color change Δ
- E is not greater than 18.
Specification