{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9709507","patent":{"patent_number":"US-9709507","title":"Apparatus and method for measuring contamination of filter","assignee":null,"inventors":[],"filing_date":"2015-05-15T00:00:00.000Z","publication_date":"2017-07-18T00:00:00.000Z","cpc_codes":["G01N","G01N","G01N","G01N"],"num_claims":7,"abstract":"Provided are an apparatus and method for measuring contamination of a filter. The filter contamination measuring apparatus includes a light-emitting unit which provides light having, a predetermined wavelength to a filter adsorbs foreign materials, a light-receiving unit which receives light reflected by the filter and convert reflected light information into a digital code to output, and a contamination calculating unit which processes the digital code provided by the light-receiving unit and calculates a degree of contamination of the filter, wherein the contamination calculating unit calculates a degree, in which a wavelength of the light reflected by the filter is shifted from the predetermined wavelength, compares intensity of light provided by the light-emitting unit with intensity of the light reflected by the filter, and calculates the degree of contamination of the filter."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Apparatus and method for measuring contamination of filter","description":"Provided are an apparatus and method for measuring contamination of a filter. The filter contamination measuring apparatus includes a light-emitting unit which provides light having, a predetermined w","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9709507","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-9709507","citation_suggestion":"Patentable. \"Apparatus and method for measuring contamination of filter\" (US-9709507). https://patentable.app/patents/US-9709507","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9709507","json":"https://patentable.app/api/llm-context/US-9709507","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:36:31.359Z"}