Electrically heatable laminated window
AssigneeMonsanto Company
InventorFloyd E. Woodard
Life of this patent
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Abstract
A transparent, laminated window, particularly for use as a vehicle windshield, has improved deicing capability and high luminous transmission and near IR rejection, comprises an optical element having a low sheet resistivity of less than about 3 ohms per square, such element containing at least two transparent metal layers electrically conductively associated with bus bar(s) and separated by one or more dielectric layers.
Claims11
A transparent, laminated window having improved defrosting capability comprising, in combination:
- (A) an optical element having a sheet resistivity of less than about 3 ohms per square containing:
- (i) at least two electrically conductive metal layers;
- (ii) at least one dielectric spacing layer between said conductive layers;
- and
- (iii) a transparent substrate;
- and
- (B) a bus bar electrically conductively associated with each conductive layer.
A transparent, laminated window capable of transmitting at least 70% of visible light, rejecting at least 50% of solar radiation and having improved defrosting capability, said window comprising:
- (A) an optical element having a sheet resistivity less than 3 ohms per square containing:
- (i) at least two electrically conductive metal layers;
- (ii) at least one dielectric spacing layer between said conductive layers;
- and
- (iii) a transparent substrate;
- and
- (B) a bus bar electrically conductively associated with each conductive layer.
Dependencies are inferred from the claim text.