Heated mirror
AssigneeSchefenacker Vision Systems France S.A.
InventorsYves Bade, Daniel Dumont, Bernard Duroux
Life of this patent
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Abstract
A heated mirror is provided. The mirror includes a plastic or glass substrate. A contact surface is provided for receiving a resistive heating layer. A plurality of spaced electrodes are electrically coupled to the resistive heating layer for inducing a current in the resistive heating layer to heat the mirror assembly. the substrate is polished in the direction of current flow through the resistive layer. The assembly may also include a separate reflective layer.
Claims31
A mirror assembly comprising:
- a substrate including a contact surface;
- a resistive heating layer disposed on said contact surface of said substrate;
- a plurality of spaced electrodes attached to said resistive heating layer, said spaced electrodes adapted to induce a current through said resistive heating layer between said electrodes;
- and wherein
- said substrate is polished in the direction of current flow between said electrodes.
A mirror assembly comprising:
- a substrate including a contact surface;
- a reflective layer disposed on said contact surface;
- a resistive heating layer disposed on said reflective layer;
- a plurality of spaced electrodes attached to said resistive heating layer, said spaced electrodes adapted to induce a current through said resistive heating layer between said electrodes;
- and wherein
- said substrate is polished in the direction of current flow between said electrodes.
A mirror assembly comprising:
- a plastic body defining front and rear surfaces;
- a resistive heating layer disposed on said rear surface of said plastic body;
- a reflective surface disposed on said front surface of said plastic body;
- and
- a plurality of spaced electrodes secured to said heating layer, said spaced electrodes adapted to induce a current through said heating layer between said electrodes.
A mirror assembly comprising:
- a plastic body defining front and rear surfaces;
- a resistive heating layer disposed on said front surface of said plastic body;
- a reflective surface disposed on said heating layer;
- and
- a plurality of spaced electrodes secured to said heating layer, said spaced electrodes adapted to induce a current through said heating layer between said electrodes.
A method of constructing a mirror comprising the steps of:
- obtaining a substrate having front and rear surfaces;
- polishing a contact surface of the plastic body in one direction for current flow;
- depositing a resistive heating layer on said contact surface of said substrate;
- and
- attaching a plurality of spaced electrodes to said heating layer, said spaced electrodes adapted to induce a current through said heating layer between said electrodes and in the direction of the polishing of the contact surface.
Dependencies are inferred from the claim text.