{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11300796","patent":{"patent_number":"US-11300796","title":"Virtual image display device","assignee":null,"inventors":[],"filing_date":"2019-10-18T00:00:00.000Z","publication_date":"2022-04-12T00:00:00.000Z","cpc_codes":["H04N","H04N"],"num_claims":4,"abstract":"A virtual image display device includes a projection optical system that projects an image display light toward a virtual image presentation plate. The projection optical system includes a first concave mirror that reflects the image display light toward the virtual image presentation plate and a second concave mirror that reflects the image display light toward the first concave mirror. Defining a reference plane along both a direction of incidence and a direction of output of the image display light on the virtual image presentation, the first concave mirror is oriented such that the image display light is incident on the first concave mirror in a direction along the reference plane, and the second concave mirror is oriented such that the image display light is incident on the second concave mirror in a direction intersecting the reference plane."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Virtual image display device","description":"A virtual image display device includes a projection optical system that projects an image display light toward a virtual image presentation plate. The projection optical system includes a first conca","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11300796","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-11300796","citation_suggestion":"Patentable. \"Virtual image display device\" (US-11300796). https://patentable.app/patents/US-11300796","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11300796","json":"https://patentable.app/api/llm-context/US-11300796","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T04:20:00.686Z"}