{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11280744","patent":{"patent_number":"US-11280744","title":"Appearance inspection apparatus and appearance inspection method","assignee":null,"inventors":[],"filing_date":"2018-07-10T00:00:00.000Z","publication_date":"2022-03-22T00:00:00.000Z","cpc_codes":["G01N","G01N","G06T","G01N","G01N","G06T","G06T","G06T"],"num_claims":8,"abstract":"Accuracy of detecting abnormalities on the surface of a workpiece is improved. An appearance inspection apparatus for inspecting the appearance of a workpiece is provided. The appearance inspection apparatus for inspecting the appearance of the workpiece includes a first lighting unit that irradiates the workpiece with light, a first imaging unit that images the workpiece irradiated by the first lighting unit, a first detection unit that detects a first defect from an image captured by the first imaging unit, a second lighting unit that irradiates the workpiece with light, a second imaging unit that images the workpiece irradiated by the second lighting unit, and a second detection unit that detects a second defect from an image captured by the second imaging unit. The first lighting unit uses coaxial epi-illumination, and the second lighting unit uses coaxial epi-illumination and dome illumination."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Appearance inspection apparatus and appearance inspection method","description":"Accuracy of detecting abnormalities on the surface of a workpiece is improved. An appearance inspection apparatus for inspecting the appearance of a workpiece is provided. The appearance inspection ap","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11280744","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-11280744","citation_suggestion":"Patentable. \"Appearance inspection apparatus and appearance inspection method\" (US-11280744). https://patentable.app/patents/US-11280744","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11280744","json":"https://patentable.app/api/llm-context/US-11280744","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T11:14:05.590Z"}