{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11513373","patent":{"patent_number":"US-11513373","title":"Anisotropic diffraction grating and waveguide","assignee":null,"inventors":[],"filing_date":"2019-12-05T00:00:00.000Z","publication_date":"2022-11-29T00:00:00.000Z","cpc_codes":["G02F","G02F"],"num_claims":14,"abstract":"A diffraction grating includes a substrate and a plurality of fringes supported by the substrate. The fringes run parallel to each other in a first direction. A refractive index of a material of the plurality of fringes is anisotropic, whereby a refractive index contrast of the diffraction grating depends on direction of electric field of an impinging light beam, and through that dependence is a function of an azimuthal angle of the impinging light beam. A dependence of the diffraction efficiency on the azimuthal angle is affected by the dependence of the refractive index contrast on the direction of electric field of an impinging light beam. A pupil-replicating waveguide may use such a diffraction grating as a coupler for in- our out-coupling image light."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Anisotropic diffraction grating and waveguide","description":"A diffraction grating includes a substrate and a plurality of fringes supported by the substrate. The fringes run parallel to each other in a first direction. A refractive index of a material of the p","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11513373","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-11513373","citation_suggestion":"Patentable. \"Anisotropic diffraction grating and waveguide\" (US-11513373). https://patentable.app/patents/US-11513373","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11513373","json":"https://patentable.app/api/llm-context/US-11513373","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T01:31:29.520Z"}