{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9817158","patent":{"patent_number":"US-9817158","title":"Gradient index lens for infrared imaging","assignee":null,"inventors":[],"filing_date":"2015-12-10T00:00:00.000Z","publication_date":"2017-11-14T00:00:00.000Z","cpc_codes":["H04N"],"num_claims":12,"abstract":"A gradient-index lens for directing incident electromagnetic radiation comprises at least one substrate having a plurality of micro-features (e.g., trenches or holes) that may be arranged in a pattern of varied size and/or spacing. Each of the micro-features has at least one dimension that is less than a wavelength of the electromagnetic radiation. The spacing between adjacent micro-features is less than the wavelength of the electromagnetic radiation, and the size and spacing of the micro-features are sufficient to produce an effective refractive index profile of the lens that is graded. A thermal imaging device incorporating a gradient-index lens is also provided."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Gradient index lens for infrared imaging","description":"A gradient-index lens for directing incident electromagnetic radiation comprises at least one substrate having a plurality of micro-features (e.g., trenches or holes) that may be arranged in a pattern","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9817158","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-9817158","citation_suggestion":"Patentable. \"Gradient index lens for infrared imaging\" (US-9817158). https://patentable.app/patents/US-9817158","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9817158","json":"https://patentable.app/api/llm-context/US-9817158","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:41:37.530Z"}