{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8529074","patent":{"patent_number":"US-8529074","title":"Projector having projection optical system with inclined light blocking member","assignee":null,"inventors":[],"filing_date":"2008-10-02T00:00:00.000Z","publication_date":"2013-09-10T00:00:00.000Z","cpc_codes":["H04N"],"num_claims":16,"abstract":"A projection optical system for projecting an image of an image display element, includes a lens, a stop, and a holder configured to hold the lens and the stop and disposed at an image-display-element side of the stop. In addition, a light blocking member is disposed at the image-display-element side of the stop and fixed within the holder. At least a part of the light blocking member extends to a position nearer to an optical axis of the lens than the holder, and a face of the light-blocking member nearer to the image-display-element side is inclined in a section including an optical axis of the lens so that a point nearer to the optical axis comes closer to the image display element."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Projector having projection optical system with inclined light blocking member","description":"A projection optical system for projecting an image of an image display element, includes a lens, a stop, and a holder configured to hold the lens and the stop and disposed at an image-display-element","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8529074","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-8529074","citation_suggestion":"Patentable. \"Projector having projection optical system with inclined light blocking member\" (US-8529074). https://patentable.app/patents/US-8529074","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8529074","json":"https://patentable.app/api/llm-context/US-8529074","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T23:02:58.928Z"}