# US 2019/0170910 A1 · Lightweight spectacle lens > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0170910 A1 - Document ID: US20190170910A1 - Status: Published application - Kind: A1 - Application number: 15/953,549 - Filed: 2018-04-16 - Published: 2019-06-06 - Earliest claimed: 2017-12-06 - Assignees: Hon Hai Precision Industry Co., Ltd. - Applicants: Hon Hai Precision Industry Co., Ltd. - Inventors: HSIU-WEN CHIEN; WEN-KAI LI - Web page: https://patentgrep.com/patent/US20190170910A1 ## CPC - G02B 1/14: Protective coatings, e.g. hard coatings - G02B 1/041: {Lenses} - G02B 1/118: having sub-optical wavelength surface structures designed to provide an enhanced transmittance, e.g. moth-eye structures - G02B 1/18: Coatings for keeping optical surfaces clean, e.g. hydrophobic or photo-catalytic films (G02B1/16 takes precedence) - G02C 7/02: Lenses; Lens systems {; Methods of designing lenses} - G02C 7/10: Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses - G02B 2207/101: Nanooptics - G02C 2202/16: Laminated or compound lenses - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G02C: SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES (trial frames for testing the eyes A61B3/04; goggles or eyeshields not having the same features as spectacles A61F9/00) ## Abstract A lightweight spectacle lens is disclosed. The spectacle lens includes a lens main body, and the lens main body includes two surfaces opposite to each other; and a functional film formed on at least one surfaces of the lens main body, and a main material of the lens main body is cyclic block copolymer. ## Claims ### Claim 1 A lightweight spectacle lens comprising: a lens main body comprising two surfaces opposite to each other; and a functional film formed on at least one surfaces of the lens main body, wherein a main material of the lens main body is cyclic block copolymer. ### Claim 2 (depends on 1) The lightweight spectacle lens of claim 1, wherein the two surfaces is a front surface and a rear surface, the front surface is a spherical surface, a non spherical surface, or a progressive surface, and the back surface is a spherical surface, an aspheric surface, or a progressive surface. ### Claim 3 (depends on 1) The lightweight spectacle lens of claim 1, wherein the functional film is select from a group consisting of a rigid film, an anti-smear film, an anti fogging film, a color film, a waterproof self cleaning film, and an anti reflection film or any combination thereof. ### Claim 4 (depends on 1) The lightweight spectacle lens of claim 1, wherein an ultraviolet absorbers is doped with the circular block copolymers to form an anti-ultraviolet glasses, and a weight ratio of the ultraviolet absorbers in a total weight of the circular block copolymers and the ultraviolet absorbers is 0.0003% and 5.8%. ### Claim 5 (depends on 1) The lightweight spectacle lens of claim 1, wherein the ultraviolet absorbers is select from UV-326, UV-329, or UV-531. ### Claim 6 (depends on 1) The lightweight spectacle lens of claim 1, wherein the functional film comprises a rigid film, and the rigid film is composed of a dopamine, a plurality of inorganic oxide particles, and a solvent. ### Claim 7 (depends on 6) The lightweight spectacle lens of claim 6, wherein the dopamine has a mass percentage of about 1% to about 40% of a total mass of the hard coating composition, the plurality of the inorganic oxide particles has a mass percentage of about 40% to about 80% of the total mass of the hard coating composition, the solvent has a mass percentage of about 5% to about 50% of the total mass of the hard coating composition. ### Claim 8 (depends on 7) The lightweight spectacle lens of claim 7, wherein the plurality of inorganic oxide particles is selected from particles of silica, zirconia, alumina, titanium, or any combination thereof. ### Claim 9 (depends on 8) The lightweight spectacle lens of claim 8, wherein a particle diameter of the inorganic oxide particle is about 1 nm to about 1000 nm. ### Claim 10 (depends on 9) The lightweight spectacle lens of claim 9, wherein the solvent is water, an alcohol aqueous solution, or an oxidizing aqueous solution. ### Claim 11 (depends on 10) The lightweight spectacle lens of claim 10, wherein the alcohol aqueous solution is a methanol aqueous solution, an ethanol aqueous solution, or a propanol aqueous solution, and the oxidizing aqueous solution is sodium periodate aqueous solution. ### Claim 12 (depends on 3) The lightweight spectacle lens of claim 3, wherein the functional film comprises an anti reflection film, the an anti reflection film comprises a plurality of micro-structures spacing apart, and the size of the microstructure is in nanometer magnitude. ### Claim 13 (depends on 12) The lightweight spectacle lens of claim 12, wherein a section of the microstructure is triangular or semicircular. ### Claim 14 (depends on 13) The lightweight spectacle lens of claim 13, wherein a height of the microstructure is in a range from 40 nm to 550 nm, a width of the microstructure is in a range from 35 nm to 555 nm, a period of the microstructures is in a range from 10 nm to 650 nm.