{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9648244","patent":{"patent_number":"US-9648244","title":"Zoom lens and image pickup apparatus including the same","assignee":null,"inventors":[],"filing_date":"2015-07-16T00:00:00.000Z","publication_date":"2017-05-09T00:00:00.000Z","cpc_codes":["H04N"],"num_claims":7,"abstract":"The zoom lens according to the present invention includes, in order from an object side to an image side: a first lens unit having a positive refractive power that does not move for zooming; a second lens unit having a negative refractive power that moves during zooming; a third lens unit having a negative refractive power that moves along a locus convex toward the object side during zooming from a wide angle end to a telephoto end; a fourth lens unit having a positive refractive power that moves during zooming; an aperture stop; and a fifth lens unit having a positive refractive power that does not move for zooming, in which the fourth lens unit has a lens surface having an aspherical shape with which the positive refractive power is weakened."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Zoom lens and image pickup apparatus including the same","description":"The zoom lens according to the present invention includes, in order from an object side to an image side: a first lens unit having a positive refractive power that does not move for zooming; a second ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9648244","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-9648244","citation_suggestion":"Patentable. \"Zoom lens and image pickup apparatus including the same\" (US-9648244). https://patentable.app/patents/US-9648244","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9648244","json":"https://patentable.app/api/llm-context/US-9648244","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:05:08.768Z"}