{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9719919","patent":{"patent_number":"US-9719919","title":"Method for measuring refractive index, and refractometer","assignee":null,"inventors":[],"filing_date":"2014-01-23T00:00:00.000Z","publication_date":"2017-08-01T00:00:00.000Z","cpc_codes":["G01N","G01N","G01N","G01N","G01N"],"num_claims":15,"abstract":"An exemplary method for measuring a refractive index of a substance being measured through an optical window, includes arranging the optical window in contact with the substance being measured, directing light to the interface of the optical window and substance being measured, where part of the light is absorbed by the substance being measured and part of it is reflected from the substance being measured to form an image, in which the location of the boundary of light and dark areas expresses a critical angle of the total reflection dependent on the refractive index of the substance being measured, and examining the formed image. Light is directed on a first structure and to desired angles on an interface between the optical window and substance being measured. Light reflected from the interface of the optical window and substance being measured is directed on a second structure."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method for measuring refractive index, and refractometer","description":"An exemplary method for measuring a refractive index of a substance being measured through an optical window, includes arranging the optical window in contact with the substance being measured, direct","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9719919","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-9719919","citation_suggestion":"Patentable. \"Method for measuring refractive index, and refractometer\" (US-9719919). https://patentable.app/patents/US-9719919","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9719919","json":"https://patentable.app/api/llm-context/US-9719919","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T12:36:22.393Z"}