{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9643445","patent":{"patent_number":"US-9643445","title":"Optical element","assignee":null,"inventors":[],"filing_date":"2014-07-31T00:00:00.000Z","publication_date":"2017-05-09T00:00:00.000Z","cpc_codes":["G02F","G06K"],"num_claims":4,"abstract":"An element for protection against forgery and/or copying is arranged on a substrate and includes an optically anisotropic layer which has at least two regions with different optical axes, characterized in that the substrate is a reflective polarizer. The optically anisotropic layer can include cross-linked liquid crystal monomers. The anisotropic layer can be placed on an orientation layer. The orientation layer can be in contact with the polarizer and can include a photo-oriented polymer network. A device for protection against forgery and/or copying is characterized in that an element as set forth above and an analyzer are arranged on the same substrate."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Optical element","description":"An element for protection against forgery and/or copying is arranged on a substrate and includes an optically anisotropic layer which has at least two regions with different optical axes, characterize","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9643445","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-9643445","citation_suggestion":"Patentable. \"Optical element\" (US-9643445). https://patentable.app/patents/US-9643445","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9643445","json":"https://patentable.app/api/llm-context/US-9643445","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T11:17:59.052Z"}