{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10509231","patent":{"patent_number":"US-10509231","title":"Opposed gratings in a waveguide display","assignee":null,"inventors":[],"filing_date":"2019-08-05T00:00:00.000Z","publication_date":"2019-12-17T00:00:00.000Z","cpc_codes":["G02F"],"num_claims":20,"abstract":"A waveguide display includes a light source assembly, an output waveguide, and a controller. The light source assembly emits an image light that propagates along an input wave vector. The output waveguide includes a waveguide body with two opposite surfaces. The output waveguide includes a first grating receiving an image light propagating along the input wave vector, a second grating, and a third grating positioned opposite to the second grating and outputting an expanded image light with wave vectors matching the input wave vector. The controller controls the illumination of the light source assembly to form a two-dimensional image."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Opposed gratings in a waveguide display","description":"A waveguide display includes a light source assembly, an output waveguide, and a controller. The light source assembly emits an image light that propagates along an input wave vector. The output waveg","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10509231","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-10509231","citation_suggestion":"Patentable. \"Opposed gratings in a waveguide display\" (US-10509231). https://patentable.app/patents/US-10509231","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10509231","json":"https://patentable.app/api/llm-context/US-10509231","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T00:36:21.978Z"}