{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11965834","patent":{"patent_number":"US-11965834","title":"Dark-field optical inspection device","assignee":null,"inventors":[],"filing_date":"2019-09-20T00:00:00.000Z","publication_date":"2024-04-23T00:00:00.000Z","cpc_codes":["G01N","G01N","G01N","G01N","G01N","G01N","G01N","G01N","G01N"],"num_claims":18,"abstract":"A device for dark-field optical inspection of a substrate comprises: a light source for generating an incident beam that is projected onto an inspection zone of the substrate and that is capable of being reflected in the form of diffuse radiation; at least one first and one second collecting device; and a reflecting device for directing at least a portion of the diffuse radiation originating from a focal point of collection coincident with the inspection zone in the direction of the collecting devices, with a first and second reflective zone from which a first portion of the diffuse radiation is directed toward a first focal point, which is optically conjugated with the focal point of collection, and a second portion of the diffuse radiation is reflected toward a second focal point, which is optically conjugated with the collection focal point and distinct from the first focal point of detection."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Dark-field optical inspection device","description":"A device for dark-field optical inspection of a substrate comprises: a light source for generating an incident beam that is projected onto an inspection zone of the substrate and that is capable of be","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11965834","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-11965834","citation_suggestion":"Patentable. \"Dark-field optical inspection device\" (US-11965834). https://patentable.app/patents/US-11965834","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11965834","json":"https://patentable.app/api/llm-context/US-11965834","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T13:14:58.571Z"}