{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8503121","patent":{"patent_number":"US-8503121","title":"Lens driving device capable of suppressing a reduction of magnetic efficiency of a magnetic circuit","assignee":null,"inventors":[],"filing_date":"2011-06-16T00:00:00.000Z","publication_date":"2013-08-06T00:00:00.000Z","cpc_codes":["H04N"],"num_claims":3,"abstract":"A lens driving device includes a ring-shaped driving coil fixed to a lens holder so as to position around a tubular portion thereof and a rectangular hollow cylindrical yoke including a plurality of flat-shaped permanent magnets opposite to the driving coil. Each flat-shaped permanent magnet has both ends in a horizontal direction which extend in the proximity of opposed two sides of the yoke. The driving coil is disposed so as to extend up to the vicinity of the both ends in the horizontal direction of each flat-shaped permanent magnet."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Lens driving device capable of suppressing a reduction of magnetic efficiency of a magnetic circuit","description":"A lens driving device includes a ring-shaped driving coil fixed to a lens holder so as to position around a tubular portion thereof and a rectangular hollow cylindrical yoke including a plurality of f","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8503121","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-8503121","citation_suggestion":"Patentable. \"Lens driving device capable of suppressing a reduction of magnetic efficiency of a magnetic circuit\" (US-8503121). https://patentable.app/patents/US-8503121","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8503121","json":"https://patentable.app/api/llm-context/US-8503121","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T06:33:18.478Z"}