{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8520170","patent":{"patent_number":"US-8520170","title":"Low-twist chiral optical layers and related fabrication methods","assignee":null,"inventors":[],"filing_date":"2012-11-19T00:00:00.000Z","publication_date":"2013-08-27T00:00:00.000Z","cpc_codes":["G02F","G02F"],"num_claims":40,"abstract":"An optical element includes a first and second stacked birefringent layers. The first birefringent layer includes local anisotropy patterns having respective relative orientations that vary over a first thickness between opposing faces of the first birefringent layer to define a first twist angle. The second birefringent layer includes local anisotropy patterns having respective relative orientations that vary over a second thickness between opposing faces of the second birefringent layer to define a second twist angle different than the first twist angle. Related devices and fabrication methods are also discussed."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Low-twist chiral optical layers and related fabrication methods","description":"An optical element includes a first and second stacked birefringent layers. The first birefringent layer includes local anisotropy patterns having respective relative orientations that vary over a fir","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8520170","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-8520170","citation_suggestion":"Patentable. \"Low-twist chiral optical layers and related fabrication methods\" (US-8520170). https://patentable.app/patents/US-8520170","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8520170","json":"https://patentable.app/api/llm-context/US-8520170","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T23:10:25.476Z"}