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US 2003/0079541 A1Published application
Optical sensors that resist delamination
OwnerJeffrey B. Mecham, Kristie L. Cooperinventors
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Abstract
An optical sensor with alternating layers of high refractive indices and low refractive indices which resist delamination through the use of an interlayer bonding layer between the high refractive index layers and the low refractive index layers. Further the use of an overlay that covers substantially all of the alternating layers of high refractive indices may be used. The interlayer bonding layer and the overlay does not detract from the response time or accuracy of the sensor.
Claims19
A sensor comprising:
- alternating layers of high and low refractive indices on an end of a substrate, wherein said layer having a high refractive index comprises multiple oppositely charged layers of at least a first and second material layers, and wherein said layer having a low refractive index comprises multiple oppositely charged layers of at least a third and forth material layers;
- and
- an overlayer substantially surrounding said alternating layers.
An optical sensor comprising:
- at least two alternating layers having different refractive indices on an end of a substrate wherein one alternating layer comprises multiple oppositely charged layers of at least a first and second material layer held together by electrostatic charges, and wherein the second alternating layer comprises multiple oppositely charged layers of at least a third and forth material layer held together by electrostatic charges, wherein at least one of said first, second, third, and forth material layers is separated by an interlayer bonding layer.
Dependencies are inferred from the claim text.