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US 12,595,370 B2Granted
Polymerizable absorbers of UV and high energy visible light
AssigneeJohnson & Johnson Vision Care, Inc.
InventorsDerek Nankivil, Shivkumar Mahadevan, Dawn D. Wright
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Abstract
Described are polymerizable high energy light absorbing compounds. The compounds absorb various wavelengths of ultraviolet and/or high energy visible light and are suitable for incorporation in various products, such as biomedical devices and ophthalmic devices.
Claims27
An ophthalmic device that is a free radical reaction product of a reactive mixture comprising:
- one or more polymerizable compounds suitable for making the ophthalmic device;
- and
- a high energy visible (HEV) light absorbing compound and a UV absorbing compound that is a benzophenone, a benzotriazole, a triazine, a substituted acrylonitrile, or mixtures thereof,
- wherein the ophthalmic device transmits from 1 percent to 30 percent of light across a wavelength range of 400 to 409 nm, and from 10 percent to 95 percent of light across a wavelength range of 410 to 424 nm, and
- wherein the ophthalmic device exhibits a change in chromatic contrast of 0.5% or less in 70 to 98% of natural scene content.
2 more elements
An ophthalmic device that is a free radical reaction product of a reactive mixture comprising:
- one or more polymerizable compounds suitable for making the ophthalmic device and a UV absorbing compound that is a benzophenone, a benzotriazole, a triazine, a substituted acrylonitrile, or mixtures thereof;
- and
- a tint mechanism configured to cause the ophthalmic device to transmit from 1 percent to 30 percent of light across a wavelength range of 400 to 409 nm, and from 10 percent to 95 percent of light across a wavelength range of 410 to 424 nm and from 1 percent to 70 percent of light across a wavelength range of 425 to 429 nm, and
- wherein the ophthalmic device exhibits a change in chromatic contrast of 0.5% or less in 70 to 98% of natural scene content.
1 more element
An ophthalmic device that is a free radical reaction product of a reactive mixture comprising:
- one or more polymerizable compounds suitable for making the ophthalmic device;
- and
- a high energy visible (HEV) light absorbing compound and a UV absorbing compound that is a benzophenone, a benzotriazole, a triazine, a substituted acrylonitrile, or mixtures thereof,
- wherein the ophthalmic device transmits from 1 percent to 30 percent of light across a wavelength range of 400 to 409 nm, and from 10 percent to 95 percent of light across a wavelength range of 410 to 424 nm,
- and wherein the ophthalmic device exhibits a shift in a peak wavelength by less than 2.0 nm and a decrease in amplitude of irradiance by less than 6.0% on a tristimulus colorimeter's blue primary when compared to a substantially similar ophthalmic device consisting essentially of the one or more polymerizable compounds and without the HEV light absorbing compound.
2 more elements
Dependencies are inferred from the claim text.