Electrochromic rearview mirror incorporating a third surface partially transmissive reflector
First Claim
1. An electrochromic rearview mirror comprising:
- front and rear elements each having front and rear surfaces and being sealably bonded together in a spaced-apart relationship to define a chamber;
a transparent first electrode including a layer of conductive material carried on a surface of one of said elements;
an electrochromic material contained in said chamber; and
a partially transmissive, partially reflective second electrode disposed over substantially all of said front surface of said rear element, said second electrode including a transparent coating applied over a surface of said rear element and a thin reflective layer of metal applied over said transparent coating, wherein said electrochromic rearview mirror exhibits a reflectance of at least about 35 percent, a transmittance of at least about 5 percent in at least portions of the visible spectrum, and a C* value of less than about 20.
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Accused Products
Abstract
An electrochromic mirror is disclosed for use in a vehicle rearview mirror assembly having a light source positioned behind the electrochromic mirror for selectively projecting light through the mirror. The electrochromic mirror includes front and rear spaced elements each having front and rear surfaces and being sealably bonded together in a spaced-apart relationship to define a chamber, a layer of transparent conductive material disposed on the rear surface of the front element, at least one solution-phase electrochromic material contained within the chamber, and a second electrode overlying the front surface of the rear element in contact with the electrochromic material. The second electrode includes a layer of reflective material and a coating of electrically conductive material that is at least partially transmissive and is disposed over substantially all of the front surface of the rear element. The second electrode further includes a region in front of the light source that is at least partially transmissive. The electrically conductive coating may include a single transparent layer or a plurality of partially reflective and transmissive layers, or an electrically conductive dichroic coating. The light source may be an information display, such as a compass/temperature display as used in an inside rearview mirror, or may be a signal light as used in an outside rearview mirror.
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Citations
59 Claims
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1. An electrochromic rearview mirror comprising:
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front and rear elements each having front and rear surfaces and being sealably bonded together in a spaced-apart relationship to define a chamber;
a transparent first electrode including a layer of conductive material carried on a surface of one of said elements;
an electrochromic material contained in said chamber; and
a partially transmissive, partially reflective second electrode disposed over substantially all of said front surface of said rear element, said second electrode including a transparent coating applied over a surface of said rear element and a thin reflective layer of metal applied over said transparent coating, wherein said electrochromic rearview mirror exhibits a reflectance of at least about 35 percent, a transmittance of at least about 5 percent in at least portions of the visible spectrum, and a C* value of less than about 20. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59)
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23. An electrochromic mirror for use in a rearview mirror assembly having an electronic device positioned behind the electrochromic mirror for selectively projecting and/or receiving light therethrough, said electrochromic mirror comprising:
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front and rear spaced elements, each having front and rear surfaces and being sealably bonded together in a spaced-apart relationship to define a chamber;
a transparent first electrode including a layer of conductive material carried on a surface of one of said elements;
an electrochromic material contained within said chamber; and
a second electrode overlying said front surface of said rear element in contact with said electrochromic material, said second electrode including a reflective layer of reflective material and a coating of a material that is at least partially transmissive and is disposed over substantially all of the front surface of said rear element, wherein said second electrode includes a region in front of the electronic device that is at least partially transmissive.
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47. An electrochromic rearview mirror comprising:
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front and rear elements each having front and rear surfaces and being sealably bonded together in a spaced-apart relationship to define a chamber;
an electrochromic material contained in said chamber;
a transparent first electrode including a layer of conductive material carried on a surface of one of said elements; and
a partially transmissive, partially reflective second electrode disposed over substantially all of said front surface of said rear element, said second electrode including a transparent coating applied over a surface of said rear element and a thin reflective layer of silver or silver alloy applied over said transparent coating, said second electrode having a reflectance of at least about 35 percent, a transmittance of at least about 5 percent in at least portions of the visible spectrum, and a C* value of less than about 20.
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Specification