Soft optical patch with light filtration and vision correction for ophthalmic applications
An optical article, includes: a first surface and a second surface, wherein at least one microstructure is patterned on the second surface to form a microstructure pattern, the microstructure pattern including a plurality of microlenses configured to adjust a focus of the optical article, and a first dye having a first dye peak absorbance wavelength with a first dye bandwidth, wherein the first dye is configured to filter a first predetermined range of light wavelengths. The optical article may further comprise a protective microstructure pattern, the protective microstructure pattern having a plurality of protective microstructures arranged complementary to an arrangement of a plurality of optical microstructures, the arrangement of the plurality of optical microstructures being disposed in the complementary arrangement of the protective microstructures.
1 . A removable optical patch for an optical article, comprising:
a first surface and a second surface, wherein at least one microstructure is patterned on the second surface to form a microstructure pattern, the microstructure pattern including a plurality of microlenses configured to adjust a focus of the optical article, and
a first dye, having a first dye peak absorbance wavelength with a first dye bandwidth, wherein the first dye is configured to filter a first predetermined range of light wavelengths,
a protective layer comprising a protective microstructure pattern, the protective microstructure pattern having a plurality of protective microstructures arranged complementary to an arrangement of a plurality of optical microstructures of the microstructure pattern, the arrangement of the plurality of optical microstructures being disposed in the complementary arrangement of the protective microstructures,
a second dye, in the protective layer, configured to filter a second predetermined range of light wavelengths, the second dye including a second dye peak absorbance wavelength with a second dye bandwidth,
wherein the optical patch comprises two smooth sides along an exterior of the optical patch to which the optical patch is removably attached to the optical article with electrostatic forces, or with surface tension of a liquid.
2 . The removable optical patch for an optical article according to claim 1 , wherein the microstructure pattern is arranged in concentric rings around a center of the optical article.
3 . The removable optical patch for an optical article according to claim 1 , wherein
each microstructure is spherical in shape and a spacing between the arrangement of concentric rings of the microlenses is equal; or
each microstructure is aspherical in shape and a spacing between the arrangement of concentric rings of the microlenses is varied.
4 . The removable optical patch for an optical article according to claim 1 , wherein a power variation of the plurality of microlenses is greater than −3.1D.
5 . The removable optical patch for an optical article according to claim 1 , wherein the first surface is convex and the second surface is concave.
6 . The removable optical patch for an optical article according to claim 1 , wherein the first dye peak absorbance wavelength is configured to filter light in the first predetermined range of light wavelengths from 350 nm to 455 nm.
7 . The removable optical patch for an optical article according to claim 1 , wherein
the first dye peak absorbance wavelength is in a range of 780 nm to 2000 nm; and
the first dye is configured to filter light in the first predetermined range of light wavelengths from 780 nm to 2000 nm.
8 . The removable optical patch for an optical article according to claim 1 , wherein
the first dye peak absorbance wavelength is approximately 498 nm;
the first dye bandwidth is less than 70 nm; and
the first dye is configured to filter light in the first predetermined range of light wavelengths from 460 nm to 510 nm.
9 . The removable optical patch for an optical article according to claim 1 , wherein
the second dye peak absorbance wavelength is approximately 585 nm;
the second dye bandwidth is less than 70 nm; and
the second dye is configured to filter light in the second predetermined range of light wavelengths from 570 nm to 600 nm.
10 . The removable optical patch for an optical article according to claim 1 , wherein a material of the optical patch includes thermoplastic polyurethane (TPU), polyvinyl chloride (PVC), polyether block amide (PEBA), thermoplastic elastomer (TPE), polydimethylsiloxane (PDMS), polycarbonate (PC), Polyamide (PA), poly(methyl methacrylate) (PMMA), cellulose triacetate (TAC), polyethylene terephthalate (PET), polyester, copolyester, or polyolefin.