Electro-optic device having a self-cleaning hydrophilic coating

Details Electro-optic device having a self-cleaning hydrophilic coating Electro-optic device having a self-cleaning hydrophilic coating

2006-01-31

2006-01-31

Shafer, Ricky D. (Department: 2872)

Optical: systems and elements

Protection from moisture or foreign particle

C359S512000, C359S884000, C359S265000, C359S267000

Reexamination Certificate

active

06991339

ABSTRACT:
An electro-optic device is disclosed having a self-cleaning, hydrophilic optical coating. The electro-optic device preferably forms an external rearview mirror for a vehicle. The optical coating preferably includes photocatalytic layer(s), a hydrophilic layer, and a color suppression coating. The electro-optic device is preferably an electrochromic mirror. The disclosed optical coating exhibits a reflectance at the front surface of the reflective element that is less than about 20 percent, and has sufficient hydrophilic properties such that water droplets on a front surface of the optical coating exhibit a contact angle of less than about 20°. The mirror exhibits a C* value of less than 25.

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