{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11242977","patent":{"patent_number":"US-11242977","title":"Illumination device with element having annular coating","assignee":null,"inventors":[],"filing_date":"2020-01-22T00:00:00.000Z","publication_date":"2022-02-08T00:00:00.000Z","cpc_codes":["G02F","G02F","G02F"],"num_claims":20,"abstract":"Optical lens and light emitting device designs achieve uniform light distribution without producing a light “hot spot”, with a benefit of reducing the number of light sources needed and overall cost for direct-lit backlight device. The optical lens includes coating portions or structures on the bottom surface thereof, and a backlight device, or other light emitting device, incorporating said lens, to produce a uniform distribution of light at a target surface. The disclosed lens and light emitting device are particularly useful when an extremely wide transfer function of backlight is needed."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Illumination device with element having annular coating","description":"Optical lens and light emitting device designs achieve uniform light distribution without producing a light “hot spot”, with a benefit of reducing the number of light sources needed and overall cost f","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11242977","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-11242977","citation_suggestion":"Patentable. \"Illumination device with element having annular coating\" (US-11242977). https://patentable.app/patents/US-11242977","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11242977","json":"https://patentable.app/api/llm-context/US-11242977","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T08:26:33.620Z"}