Tinted optical article
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United States of America Patent
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May 1, 2018
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N/A
app pub date -
Apr 11, 2016
filing date -
Apr 23, 2015
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Abstract
A tinted optical article includes an optical substrate providing with an optical filter wherein the optical filter is configured to selectively emit light in at least one selected range of wavelengths of light in the visible spectrum of 460 nm to 530 nm, allowing retinal exposure of a wearer eye to chronobiological blue-enriched light.
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