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US Patent 7438411 - Sunglasses incorporating plasmon resonant nanoparticles

This patent from Nanospectra Biosciences teaches sunglasses or protective goggles incorporating dielectric nanoparticles with a metallic shell to achieve enhanced tuning of optical radiation filtering. Claim 1 reads:

1. A device to reduce electromagnetic radiation entering the eye, comprising:

eyewear; and

plasmon resonant particles, embedded in said eyewear, wherein said plasmon resonant particles are characterized by a plasmon resonant peak in the electromagnetic frequency range between 670 nm and 1200 nm.

Full post as published by TinytechIP on October 23, 2008 (boomark / email).