{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9645291","patent":{"patent_number":"US-9645291","title":"Voltage-tunable optical filters for instrumentation applications","assignee":null,"inventors":[],"filing_date":"2016-04-18T00:00:00.000Z","publication_date":"2017-05-09T00:00:00.000Z","cpc_codes":["G01N","G01N","G01N","G01N","B82Y","G01N","G02F","G02F"],"num_claims":38,"abstract":"A series combination of a shortwave pass (SWP) filter and a longwave pass (LWP) filter is provided in an arrangement where the filters are separately and independently controlled by voltages applied to the respective filters. The applied voltages modify the response profile of the associated filters, where changes in the voltage applied to the SWP filter changes its cut-off wavelength λS and changes in the voltage applied to the LWP filter changes its cut-on wavelength λL (the bandwidth of the combined arrangement between the span between λL and λS). The ability to independently tune both the SWP and LWP filters allows for the combined result of their series combination to modify both the center wavelength (CWL) and bandwidth (BW) of the overall filter resulting from their combination."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Voltage-tunable optical filters for instrumentation applications","description":"A series combination of a shortwave pass (SWP) filter and a longwave pass (LWP) filter is provided in an arrangement where the filters are separately and independently controlled by voltages applied t","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9645291","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-9645291","citation_suggestion":"Patentable. \"Voltage-tunable optical filters for instrumentation applications\" (US-9645291). https://patentable.app/patents/US-9645291","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9645291","json":"https://patentable.app/api/llm-context/US-9645291","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:16:56.953Z"}