Heated mirror, designed in particular to constitute an external rearview mirror element for a vehicle
First Claim
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1. A heated mirror comprising:
- a transparent substrate;
a reflective coating covering at least one of the surfaces of said substrate, said reflective coating including a stack of transparent, non-metallic layers having alternately a high index of refraction and a low index of refraction, at least one of the layers having a high index of refraction being constructed of an electrically conductive, transparent, non-metallic material and the remaining layers of said stack being constructed of transparent, dielectric materials; and
means for supplying an electrical current through said at least one electrically conductive layer to heat said mirror.
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Abstract
A heated mirror includes a transparent substrate with a reflective coating covering at least one of the substrate surfaces. The reflective coating includes a stack of transparent, non-metallic layers which have alternately high and low indices of refraction. At least one of the layers has a high index of refraction and is constructed from electrically conductive, transparent, non-metallic material through which electric current flows to heat the mirror. The remaining layers of the coating are constructed of transparent, dielectric material.
33 Citations
9 Claims
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1. A heated mirror comprising:
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a transparent substrate; a reflective coating covering at least one of the surfaces of said substrate, said reflective coating including a stack of transparent, non-metallic layers having alternately a high index of refraction and a low index of refraction, at least one of the layers having a high index of refraction being constructed of an electrically conductive, transparent, non-metallic material and the remaining layers of said stack being constructed of transparent, dielectric materials; and means for supplying an electrical current through said at least one electrically conductive layer to heat said mirror. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification