Ophthalmic lens

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United States of America Patent

PATENT NO 9389435
SERIAL NO

14401630

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Abstract

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An ophthalmic lens having a front and back face, at least one including a filter, which provides the main face/filter with the following properties:

    an average blue reflectance factor within a wavelength ranging from 420-450 nm, which ≧5%, for an angle of incidence θ ranging from 0°-15°,a spectral reflectivity curve for θ, having: a maximum reflectivity at a wavelength <435 nm, anda full width at half maximum ≧80 nm, and for θ ranging from 0°-15° and for θ′ ranging from 30°-45°, a parameter Δ(θ,θ′)=1−[Rθ′(435 nm)/Rθ(435 nm)], such that Δ(θ,θ′)≧0.6, where Rθ(435 nm) represents the reflectivity value of the main face/filter at a wavelength of 435 nm for θ, and Rθ′(435 nm) represents the reflectivity value of the main face/filter at a wavelength of 435 nm for θ′.

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Patent Owner(s)

Patent OwnerAddress
ESSILOR INTERNATIONAL94220 CHARENTON-LE-PONT

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
De, Ayguavives Francisco Charenton le Pont, FR 22 123
Maury, Helene Charenton le Pont, FR 4 51

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