{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11249225","patent":{"patent_number":"US-11249225","title":"Tunable acoustic gradient lens system utilizing amplitude adjustments for acquiring images focused at different z-heights","assignee":null,"inventors":[],"filing_date":"2019-12-20T00:00:00.000Z","publication_date":"2022-02-15T00:00:00.000Z","cpc_codes":["G02F","G01N","G02F","G02F","G06T","G06T"],"num_claims":20,"abstract":"A variable focal length lens system includes a tunable acoustic gradient (TAG) lens; a TAG lens controller; and processor(s) configured to: (a) operate the TAG lens controller to drive a periodic modulation of the TAG lens optical power at a TAG lens resonant frequency, using a first amplitude driving signal that provides a first focal Z range extending between peak focus distances Z1max+ and Z1max−; and expose a first image using a first exposure increment approximately at the timing of Z1max+ or Z1max−; (b) adjust the TAG lens controller to drive the periodic modulation using a second amplitude driving signal that provides a second focal Z range extending between peak focus distances Z2max+ and Z2max−; and expose a second image using a second exposure increment approximately at the timing of Z2max+ or Z2max−; and (c) perform processing that includes determining focus metric values for the first and second images."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Tunable acoustic gradient lens system utilizing amplitude adjustments for acquiring images focused at different z-heights","description":"A variable focal length lens system includes a tunable acoustic gradient (TAG) lens; a TAG lens controller; and processor(s) configured to: (a) operate the TAG lens controller to drive a periodic modu","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11249225","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-11249225","citation_suggestion":"Patentable. \"Tunable acoustic gradient lens system utilizing amplitude adjustments for acquiring images focused at different z-heights\" (US-11249225). https://patentable.app/patents/US-11249225","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11249225","json":"https://patentable.app/api/llm-context/US-11249225","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T08:27:17.883Z"}