{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11520308","patent":{"patent_number":"US-11520308","title":"Progressive lenses with variable reduced peripheral mean sphere","assignee":null,"inventors":[],"filing_date":"2020-07-29T00:00:00.000Z","publication_date":"2022-12-06T00:00:00.000Z","cpc_codes":["G05B","G05B"],"num_claims":28,"abstract":"An improved method for configuring progressive ophthalmic lenses is disclosed. The method includes computing an improved merit function that modulates reduction of peripheral values of the mean sphere according to the prescription sphere. According to the method the amount of reduction of mean sphere of the lens peripheral regions is dependent on the prescription resulting from a modified merit function. As such, the reduction of peripheral mean sphere varies based on the prescription. According to the modified merit function and resulting improved merit function, the greater the hyperopia and/or presbyopia defined in a prescription, the smaller the reduction of the peripheral value of mean sphere. Accordingly, when the peripheral mean sphere reduction is relaxed, a near region is made wider."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Progressive lenses with variable reduced peripheral mean sphere","description":"An improved method for configuring progressive ophthalmic lenses is disclosed. The method includes computing an improved merit function that modulates reduction of peripheral values of the mean sphere","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11520308","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-11520308","citation_suggestion":"Patentable. \"Progressive lenses with variable reduced peripheral mean sphere\" (US-11520308). https://patentable.app/patents/US-11520308","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11520308","json":"https://patentable.app/api/llm-context/US-11520308","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T19:15:41.548Z"}