{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9835937","patent":{"patent_number":"US-9835937","title":"Projection-type image display device","assignee":null,"inventors":[],"filing_date":"2016-12-19T00:00:00.000Z","publication_date":"2017-12-05T00:00:00.000Z","cpc_codes":["H04N","H04N","H04N"],"num_claims":4,"abstract":"A projection-type image display device includes a light source, a phosphor, and a filter. The light source emits a first blue illumination light. The phosphor generates a first yellow illumination light of a first wavelength band, which includes a component of a red band and a component of a green band, from a part of the first blue illumination light, and reflects a second blue illumination light and the first yellow illumination light. The filter reflects, to the phosphor side, a third blue illumination light that is a part of the second blue illumination light reflected by the phosphor, and attenuates a component of a second wavelength band of the first yellow illumination light, which is narrower than the first wavelength band. The phosphor also generates a second yellow illumination light from the third blue illumination light reflected by the filter."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Projection-type image display device","description":"A projection-type image display device includes a light source, a phosphor, and a filter. The light source emits a first blue illumination light. The phosphor generates a first yellow illumination lig","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9835937","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-9835937","citation_suggestion":"Patentable. \"Projection-type image display device\" (US-9835937). https://patentable.app/patents/US-9835937","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9835937","json":"https://patentable.app/api/llm-context/US-9835937","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T04:59:22.051Z"}