{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10539862","patent":{"patent_number":"US-10539862","title":"Wavelength conversion element, wavelength converter, light source apparatus, and projector","assignee":null,"inventors":[],"filing_date":"2018-05-29T00:00:00.000Z","publication_date":"2020-01-21T00:00:00.000Z","cpc_codes":["H04N","H04N","H04N"],"num_claims":12,"abstract":"A wavelength conversion element includes a wavelength conversion layer containing a plurality of phosphor particles and an inorganic binder that bonds the phosphor particles to each other and a substrate that holds the wavelength conversion layer and contains alumina and air cavities. The substrate has an apparent air cavity ratio that is greater than or equal to 10% and smaller than or equal to 30%. The substrate has a median diameter of particles of the alumina that is greater than or equal to 0.1 μm and smaller than or equal to 1.0 μm."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Wavelength conversion element, wavelength converter, light source apparatus, and projector","description":"A wavelength conversion element includes a wavelength conversion layer containing a plurality of phosphor particles and an inorganic binder that bonds the phosphor particles to each other and a substr","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10539862","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-10539862","citation_suggestion":"Patentable. \"Wavelength conversion element, wavelength converter, light source apparatus, and projector\" (US-10539862). https://patentable.app/patents/US-10539862","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10539862","json":"https://patentable.app/api/llm-context/US-10539862","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T07:44:34.389Z"}