{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9743076","patent":{"patent_number":"US-9743076","title":"Optical systems with compact back focal lengths","assignee":null,"inventors":[],"filing_date":"2016-01-15T00:00:00.000Z","publication_date":"2017-08-22T00:00:00.000Z","cpc_codes":["H04N","G02F","H04N","H04N","H04N"],"num_claims":20,"abstract":"Optical systems, such as 2-D and 3-D projection systems, may be configured to have a compact back focal length to allow for more compact projection lenses, lower throw ratios, improved contrast, or any combination thereof. In an embodiment, an optical system may include a relay element configured to form an intermediate image having a focal point proximate to a projection lens."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Optical systems with compact back focal lengths","description":"Optical systems, such as 2-D and 3-D projection systems, may be configured to have a compact back focal length to allow for more compact projection lenses, lower throw ratios, improved contrast, or an","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9743076","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-9743076","citation_suggestion":"Patentable. \"Optical systems with compact back focal lengths\" (US-9743076). https://patentable.app/patents/US-9743076","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9743076","json":"https://patentable.app/api/llm-context/US-9743076","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:02:48.680Z"}