Vehicular rearview mirror elements and assemblies incorporating these elements
First Claim
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1. A variable reflectance mirror element, comprising:
- a first substantially transparent substrate comprising a substantially transparent layer of material on at least a portion of a second surface;
a second substrate comprising at least one at least partially reflective layer on at least a portion of a third surface;
an electrochromic material positioned between said first substantially transparent substrate and said second substrate;
a first electrical contact conductively connected to said substantially transparent layer of material; and
a second electrical contact conductively connected to said at least one at least partially reflective layer, wherein a potential difference between any two materials interposed between said first electrical contact and said substantially transparent layer of material is less than 0.45V.
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Abstract
The present invention relates to improved electro-optic rearview mirror elements and assemblies incorporating the same.
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Citations
40 Claims
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1. A variable reflectance mirror element, comprising:
- a first substantially transparent substrate comprising a substantially transparent layer of material on at least a portion of a second surface;
a second substrate comprising at least one at least partially reflective layer on at least a portion of a third surface;
an electrochromic material positioned between said first substantially transparent substrate and said second substrate;
a first electrical contact conductively connected to said substantially transparent layer of material; and
a second electrical contact conductively connected to said at least one at least partially reflective layer, wherein a potential difference between any two materials interposed between said first electrical contact and said substantially transparent layer of material is less than 0.45V. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- a first substantially transparent substrate comprising a substantially transparent layer of material on at least a portion of a second surface;
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14. A variable reflectance mirror element, comprising:
- a first substantially transparent substrate comprising a substantially transparent layer of material on at least a portion of a second surface;
a second substrate comprising at least one at least partially reflective layer on at least a portion of a third surface;
an electrochromic material positioned between said first substantially transparent substrate and said second substrate;
a first electrical contact conductively connected to said substantially transparent layer of material; and
a second electrical contact conductively connected to said at least one at least partially reflective layer, wherein a linear conductivity between any two materials interposed between said first electrical contact and said substantially transparent layer of material is less than 1000 ohms. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
- a first substantially transparent substrate comprising a substantially transparent layer of material on at least a portion of a second surface;
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27. A variable reflectance mirror element, comprising:
- a first substantially transparent substrate comprising a substantially transparent layer of material on at least a portion of a second surface;
a second substrate comprising at least one at least partially reflective layer on at least a portion of a third surface;
an electrochromic material positioned between said first substantially transparent substrate and said second substrate;
a first electrical contact conductively connected to said substantially transparent layer of material;
a second electrical contact conductively connected to said at least one at least partially reflective layer; and
an electrical circuit configured to insure that said first electrical contact is maintained as an anode and said second electrical contact is maintained as a cathode. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
- a first substantially transparent substrate comprising a substantially transparent layer of material on at least a portion of a second surface;
Specification