{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11505903","patent":{"patent_number":"US-11505903","title":"Methods and apparatus for ultra wide entrance angle reflective articles for use with autonomous vehicle machine vision systems","assignee":null,"inventors":[],"filing_date":"2021-05-10T00:00:00.000Z","publication_date":"2022-11-22T00:00:00.000Z","cpc_codes":["G06V"],"num_claims":14,"abstract":"A two-layer retroreflective article construction is enabled that produces higher wide-entrance-angle performance for signs and pavement markings. A single-layer overlay is enabled for existing signs and pavement markers that improve their entrance angle performance. Materials used in the construction of an article or an overlay are transparent to radiation in the range of 400 to 1000 nanometers and utilize TIR (total internal reflection). Minimum performance specifications are proposed that extend sign sheeting retroreflectivity specifications to entrance angles of 60 degrees. An innovative traffic sign design is enabled that increases the positioning performance of safety systems and automated navigation systems."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Methods and apparatus for ultra wide entrance angle reflective articles for use with autonomous vehicle machine vision systems","description":"A two-layer retroreflective article construction is enabled that produces higher wide-entrance-angle performance for signs and pavement markings. A single-layer overlay is enabled for existing signs a","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11505903","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-11505903","citation_suggestion":"Patentable. \"Methods and apparatus for ultra wide entrance angle reflective articles for use with autonomous vehicle machine vision systems\" (US-11505903). https://patentable.app/patents/US-11505903","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11505903","json":"https://patentable.app/api/llm-context/US-11505903","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T17:19:10.352Z"}