{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11464405","patent":{"patent_number":"US-11464405","title":"Visual function test device, visual function training device, and method thereof","assignee":null,"inventors":[],"filing_date":"2018-06-08T00:00:00.000Z","publication_date":"2022-10-11T00:00:00.000Z","cpc_codes":["A61B","A61B","A61B","A61B","A61B","A61B","G06T","G06T","A61B","G06T","G06T"],"num_claims":20,"abstract":"The visual function test device of an embodiment comprises a test subject display device and an operator display device. A target display portion displays a target image to be viewed by the test subject onto the test subject display device. A visual axis estimation portion estimates a visual axis of the test subject when the target image is viewed. A position display portion displays a display position of the test target image and a viewpoint position that corresponds to the estimated visual axis, onto the operator display device, and thus a tester can objectively recognize a gazing state of the test subject and surely perform the test, which enhances the reliability of the test."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Visual function test device, visual function training device, and method thereof","description":"The visual function test device of an embodiment comprises a test subject display device and an operator display device. A target display portion displays a target image to be viewed by the test subje","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11464405","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-11464405","citation_suggestion":"Patentable. \"Visual function test device, visual function training device, and method thereof\" (US-11464405). https://patentable.app/patents/US-11464405","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11464405","json":"https://patentable.app/api/llm-context/US-11464405","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T15:33:22.279Z"}