{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9719854","patent":{"patent_number":"US-9719854","title":"Tunable filters for spectral sensing","assignee":null,"inventors":[],"filing_date":"2015-03-13T00:00:00.000Z","publication_date":"2017-08-01T00:00:00.000Z","cpc_codes":["A61B","A61B","A61B","G01N","G01N","G01N","G01N","G01N","G16H"],"num_claims":14,"abstract":"A spectroscopic analysis device for analysis of a sample comprising: a photonic integrated circuit (PIC) comprising: an input (DEF) for receiving light from the sample; and a demultiplexer (DEMUX) arranged to distribute the received light into at least a first optical chain (C1) and a second optical chain (C2); wherein each optical chain (C1, C2) of the photonic integrated circuit (PIC) further comprises a tunable bandpass filter (TBF1, TBF2) and a variable attenuator (ATT1, ATT2) and a photodetector (PD1, PD2) arranged respectively to filter and to attenuate and to detect the light distributed into its corresponding optical chain (C1, C2)."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Tunable filters for spectral sensing","description":"A spectroscopic analysis device for analysis of a sample comprising: a photonic integrated circuit (PIC) comprising: an input (DEF) for receiving light from the sample; and a demultiplexer (DEMUX) arr","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9719854","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-9719854","citation_suggestion":"Patentable. \"Tunable filters for spectral sensing\" (US-9719854). https://patentable.app/patents/US-9719854","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9719854","json":"https://patentable.app/api/llm-context/US-9719854","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T11:40:32.399Z"}