{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11513395","patent":{"patent_number":"US-11513395","title":"Bandpass filter comprising first and second reflective members each having a plurality of cholesteric liquid crystal layers and sensor having the same","assignee":null,"inventors":[],"filing_date":"2022-05-31T00:00:00.000Z","publication_date":"2022-11-29T00:00:00.000Z","cpc_codes":["G02F","G01S","G01S","G02F"],"num_claims":8,"abstract":"Provided are a bandpass filter having a high light transmittance in a transmission band and a wide wavelength range showing a high transmittance in the transmission band, and a sensor. The bandpass filter is a bandpass filter including a reflective member A and a reflective member B, in which a difference between a reflection center wavelength of the reflective member A and a reflection center wavelength of the reflective member B is larger than a sum of a half width at half maximum of a reflection band of the reflective member A and a half width at half maximum of a reflection band of the reflective member B; the reflective member A has a first cholesteric liquid crystal layer and a second cholesteric liquid crystal layer, and birefringence Δn1 of the first cholesteric liquid crystal layer is larger than birefringence Δn2 of the second cholesteric liquid crystal layer; and the reflective member B has a third cholesteric liquid crystal layer and a fourth cholesteric liquid crystal layer, and birefringence Δn3 of the third cholesteric liquid crystal layer is larger than birefringence Δn4 of the fourth cholesteric liquid crystal layer."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Bandpass filter comprising first and second reflective members each having a plurality of cholesteric liquid crystal layers and sensor having the same","description":"Provided are a bandpass filter having a high light transmittance in a transmission band and a wide wavelength range showing a high transmittance in the transmission band, and a sensor. The bandpass fi","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11513395","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-11513395","citation_suggestion":"Patentable. \"Bandpass filter comprising first and second reflective members each having a plurality of cholesteric liquid crystal layers and sensor having the same\" (US-11513395). https://patentable.app/patents/US-11513395","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11513395","json":"https://patentable.app/api/llm-context/US-11513395","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T14:30:52.303Z"}