Electrochromic Mirrors and other Electrooptic Devices

An electrochromic variable reflectance mirror for vehicles comprising front and rear spaced elements, said rear surface of the front element having a layer of transparent conductive coating disposed thereon, and said front surface of said rear element comprises a reflective element having at least one layer of conductive coating deposited on a front surface thereof, where the front and the rear elements are sealably bonded together by a spaced apart relationship defining a chamber there between, said chamber containing an electrochromic medium, and wherein the rear surface of the said front element has a conductive busbar deposited on its perimeter or a portion of its perimeter by a spray process.

An electrochromic variable reflectance mirror for vehicles comprising front and rear spaced elements, said rear surface of the front element having a layer of transparent conductive coating disposed thereon, and said front surface of said rear element comprises a reflective element having at least one layer of conductive coating deposited on a front surface thereof, where the front and the rear elements are sealably bonded together by a spaced apart relationship defining a chamber there between, said chamber containing an electrochromic medium, and wherein the rear surface of the said front element has a conductive perimeter busbar deposited in a length exceeding 50% of the perimeter of the said mirror, when the product of the width of the said mirror in cm and the surface resistance of the transparent conductive coating on the front element in ohms/square exceeds 100, and

• (a) the said conductive busbar deposited from a material comprising conductive particles dispersed in an organic binder or;
• (b) the conductive busbar is deposited by a spray process.

An electrochromic variable reflectance mirror for vehicles comprising front and rear spaced elements, said rear surface of the front element having a layer of transparent conductive coating disposed thereon;

• and said front surface of said rear element comprises a at least one layer of metal with reflective properties and in contact with a transparent conductive oxide coating;
• and the front and the rear elements are sealably bonded together by a spaced apart relationship defining a chamber there between, said chamber containing an electrochromic medium;
• and wherein the said conductive oxide coating on the rear element comprises of zinc in its composition and the said transparent conductive coating on the front element has a different composition.

An electrochromic variable reflectance mirror for vehicles with an insignia, wherein the said mirror comprising front and rear spaced elements, said rear surface of the front element having a layer of transparent conductive coating disposed thereon, and said front surface of said rear element comprises a at least one layer of conductive coating, where the front and the rear elements are sealably bonded together by a spaced apart relationship defining a chamber there between, said chamber containing an electrochromic medium, and the insignia formed by deposition of a conductive material in contact with the transparent conductive coating of the said front element.

An electrochromic variable reflectance mirror for vehicles with an insignia, wherein the said mirror comprising front and rear spaced elements, said rear surface of the front element having a layer of transparent conductive coating disposed thereon, and said front surface of said rear element comprises a at least one layer of conductive coating, where the front and the rear elements are sealably bonded together by a spaced apart relationship defining a cavity there between, said cavity containing an electrochromic medium, and the said insignia is formed by a conductive material located on the same side of the cavity as the front element.

A process to make a electrochromic variable reflectance mirror for vehicles comprising front and rear spaced elements, said rear surface of the front element having a layer of transparent conductive coating disposed thereon, and said front surface of said rear element comprises a at least one layer of conductive coating with reflective properties deposited on its front surface thereof;

• and the front and the rear elements are sealably bonded together by a spaced apart relationship defining a chamber there between, said chamber containing an electrochromic medium;
• and wherein the said reflective rear element comprises of deposition of at least one reflective metal coating on a substrate after at least one of an ion beam treatment and a plasma treatment of the underlying surface is conducted.

An electrochromic mirror assembly, comprising a rear element and a transparent front element and being sealably bonded together in a spaced apart relationship to define a chamber, and an electrochromic material contained in the said chamber, and the surface of the said front element facing within the chamber having a transparent conductor electrode layer and the said rear element having a reflective layer comprising at least one of (a) silver alloyed with a lanthanide element and (b) aluminum alloyed with at least one of manganese, iron, silicon, magnesium, zinc and chromium elements.