{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9709782","patent":{"patent_number":"US-9709782","title":"Image-capturing optical system, image-capturing optical apparatus and digital device","assignee":null,"inventors":[],"filing_date":"2015-04-24T00:00:00.000Z","publication_date":"2017-07-18T00:00:00.000Z","cpc_codes":["H04N","H04N","H04N","H04N"],"num_claims":10,"abstract":"An image-capturing optical system includes: a positive first lens group; and a positive second lens group, wherein the positive first lens group and the positive second lens group are arranged in order from an object side in the image-capturing optical system, the image-capturing optical system focuses on a close object by moving the second lens group as a whole along a light axis toward the object side, a lens closest to the object side in the second lens group has a convex surface facing the object side, a lens closest to an image side in the second lens group is a positive meniscus lens having a convex surface facing the image side, the image-capturing optical system satisfies following condition expressions (1) to (3)2.2<1Gr_Fl/FL<3.8  (1)0.9<2Gr_Fl/FL<1.5  (2), and0.45<1Gr_R_nop/1Gr_Thi<0.85  (3)."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Image-capturing optical system, image-capturing optical apparatus and digital device","description":"An image-capturing optical system includes: a positive first lens group; and a positive second lens group, wherein the positive first lens group and the positive second lens group are arranged in orde","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9709782","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-9709782","citation_suggestion":"Patentable. \"Image-capturing optical system, image-capturing optical apparatus and digital device\" (US-9709782). https://patentable.app/patents/US-9709782","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9709782","json":"https://patentable.app/api/llm-context/US-9709782","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:21:16.274Z"}