Using particles for light filtering
AssigneeJohnson & Johnson Vision Care, Inc.
InventorsFrank Gu, Aaron Joshua Clasky, Paul Chen
Life of this patent
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Abstract
A composition for light filtering, the composition comprising: a base material comprising a HEMA-based material; a plurality of metal nanoparticles dispersed in the base material, wherein the plurality of metal nanoparticles exhibit a peak light absorption value in the range of about 500 nm to about 600 nm; an anchoring mechanism dispersed in the base material, the anchoring mechanism comprising methacryloyl-derived monomer; and a nanoparticle coating material disposed on at least a portion of the plurality of metal nanoparticles.
Claims25
A composition for light filtering, the composition comprising:
- a base material;
- a plurality of gold nanoparticles dispersed in the base material, wherein the plurality of gold nanoparticles exhibit a peak light absorption value in the range of about 500 nm to about 600 nm with a Full Width at Half Maximum (FWHM) of about 90 nm to about 100 nm;
- an anchoring mechanism dispersed in the base material, the anchoring mechanism comprises glycidyl methacrylate;
- and
- a nanoparticle coating material disposed on at least a portion of the plurality of gold nanoparticles.
A composition for light filtering, the composition comprising:
- a base material comprising a HEMA-based material;
- a plurality of metal nanoparticles dispersed in the base material, wherein the plurality of metal nanoparticles exhibit a peak light absorption value in the range of about 500 nm to about 600 nm and wherein at least a portion of the plurality of metal nanoparticles exhibit a Full Width at Half Maximum (FWHM) of about 90 nm to about 100 nm;
- an anchoring mechanism dispersed in the base material, the anchoring mechanism comprises glycidyl methacrylate;
- and
- a nanoparticle coating material disposed on at least a portion of the plurality of metal nanoparticles.
A composition for light filtering, the composition comprising:
- a base material comprising a HEMA-based material;
- a plurality of plasmonic nanoparticles dispersed in the base material, wherein the plurality of plasmonic nanoparticles exhibit a peak light absorption value in the range of about 500 nm to about 600 nm and wherein at least a portion of the plurality of plasmonic nanoparticles exhibit a Full Width at Half Maximum (FWHM) of about 90 nm to about 100 nm;
- an anchoring mechanism dispersed in the base material, the anchoring mechanism comprises glycidyl methacrylate;
- and
- a nanoparticle coating material disposed on at least a portion of the plurality of plasmonic nanoparticles.
A contact lens comprising a composition for light filtering, wherein the composition exhibits a peak light absorption value in the range of about 500 nm to about 600 nm, the peak having a Full Width at Half Maximum (FWHM) of about 90 nm to about 100 nm, and wherein the contact lens comprises a HEMA-based material, and wherein the composition comprises a plurality of plasmonic nanoparticles and an anchoring mechanism dispersed in the contact lens, the anchoring mechanism comprises glycidyl methacrylate;
- and a nanoparticle coating material disposed on at least a portion of the plurality of plasmonic nanoparticles.
Dependencies are inferred from the claim text.