{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11528458","patent":{"patent_number":"US-11528458","title":"Image display apparatus and projection optical system","assignee":null,"inventors":[],"filing_date":"2019-11-18T00:00:00.000Z","publication_date":"2022-12-13T00:00:00.000Z","cpc_codes":["H04N"],"num_claims":20,"abstract":"An image display apparatus includes a light source, an image generation unit which generates image light, and a projection optical system including a first lens system which refracts the image light, a first reflection optical system having two or more reflection surfaces that fold back and reflect the refracted image light, a second lens system which refracts the image light reflected by the first reflection optical system, and a second reflection optical system which reflects the image light refracted by the second lens system toward a projection object. The first reflection optical system includes an optical component having a principal surface on which one of the reflection surfaces is configured. The principal surface includes a transmission surface that allows the image light to pass therethrough, configured in a region having a shape rotationally asymmetric to the reflection surface with respect to an optical axis of the optical component."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Image display apparatus and projection optical system","description":"An image display apparatus includes a light source, an image generation unit which generates image light, and a projection optical system including a first lens system which refracts the image light, ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11528458","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-11528458","citation_suggestion":"Patentable. \"Image display apparatus and projection optical system\" (US-11528458). https://patentable.app/patents/US-11528458","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11528458","json":"https://patentable.app/api/llm-context/US-11528458","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T20:32:58.226Z"}