Rear view mirror for vehicles
DRIVE
February 2, 2011
The rear-view mirror (1) comprises a layer carrier (2), a coating (7) applied on the layer carrier, a reflecting mirror layer (4), and an amorphous intermediate layer (8) arranged between the mirror layer and the layer carrier. The amount of parameter for the colorfulness is 5, so that the color change (delta E) resulting due to tilting of the rear-view mirror at 45[deg] from vertical observation angle is dependent of the amount of the color value (a 0) according to international commission on illumination, where the color change is delta E = 1/6x (a 0-3) and the color value is 0. The rear-view mirror (1) comprises a layer carrier (2), a coating (7) applied on the layer carrier, a reflecting mirror layer (4), and an amorphous intermediate layer (8) arranged between the mirror layer and the layer carrier. The amount of parameter for the colorfulness is 5, so that the color change (delta E) resulting due to tilting of the rear-view mirror at 45[deg] from vertical observation angle is dependent of the amount of the color value (a 0) according to international commission on illumination, where the color change is delta E = 1/6x (a 0-3), the color value is 0 and the reflection degree of the light type is 40%. The color change is less than 6. The intermediate layer is formed from semiconductor material, which has an optical layer thickness of 135-240 nm plus an integral multiple of 275 nm. The intermediate layer is made of semiconductor layers at its side in a multi-layered manner, and comprises dielectric layers. The total unit of the dielectric layer has an optical layer thickness of less than 160 nm plus an integral multiple of 275 nm. The ratio of the reflection values at dark-adapted human eye to the reflection values at clear-adapted human eye for the light type A and C is 80%, where the reflection degree at the light type A is 70%. The intermediate layer is applied on the layer carrier by cathode sputtering. A sodium bicarbonate-silicate glass is provided as layer carrier. The coating is applied on the layer carrier at rear side. The layer carrier is provided with a hydrophilic and/or photocatalytic active coating at the front side.
Discussion in the ATmosphere