{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9715167","patent":{"patent_number":"US-9715167","title":"Projection type image display apparatus with light masking","assignee":null,"inventors":[],"filing_date":"2016-06-03T00:00:00.000Z","publication_date":"2017-07-25T00:00:00.000Z","cpc_codes":["H04N","H04N","H04N"],"num_claims":14,"abstract":"According to the present invention, a projection type image display apparatus enables control of a large amount of light masking through a light-masking unit while maintaining a uniform illumination distribution in an area to be illuminated by the illumination light. The apparatus uses two array lenses on which lens cells are arranged in matrix form, where light-masking unit masks the array lens installed on the light source side in their particular area. The light-masking unit adjusts the amount of light emitted from the light source. The light-masking area of lens cells adjacent to lens cells closest to an optical axis is made smaller than the light-masking area of other cells."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Projection type image display apparatus with light masking","description":"According to the present invention, a projection type image display apparatus enables control of a large amount of light masking through a light-masking unit while maintaining a uniform illumination d","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9715167","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-9715167","citation_suggestion":"Patentable. \"Projection type image display apparatus with light masking\" (US-9715167). https://patentable.app/patents/US-9715167","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9715167","json":"https://patentable.app/api/llm-context/US-9715167","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:30:49.084Z"}