{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11947117","patent":{"patent_number":"US-11947117","title":"Spatially multiplexed volume Bragg gratings with varied refractive index modulations for waveguide display","assignee":null,"inventors":[],"filing_date":"2021-10-07T00:00:00.000Z","publication_date":"2024-04-02T00:00:00.000Z","cpc_codes":["H04N"],"num_claims":5,"abstract":"A waveguide display includes a waveguide transparent to visible light, a first volume Bragg grating (VBG) on the waveguide and characterized by a first refractive index modulation, and a second reflection VBG on the waveguide and including a plurality of regions characterized by different respective refractive index modulations. The first reflection VBG is configured to diffract display light in a first wavelength range and a first field of view (FOV) range such that the display light in the first wavelength range and the first FOV range propagates in the waveguide through total internal reflection to the plurality of regions of the second reflection VBG. The plurality of regions of the second reflection VBG are configured to diffract the display light in different respective wavelength ranges within the first wavelength range and the first FOV range."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Spatially multiplexed volume Bragg gratings with varied refractive index modulations for waveguide display","description":"A waveguide display includes a waveguide transparent to visible light, a first volume Bragg grating (VBG) on the waveguide and characterized by a first refractive index modulation, and a second reflec","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11947117","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-11947117","citation_suggestion":"Patentable. \"Spatially multiplexed volume Bragg gratings with varied refractive index modulations for waveguide display\" (US-11947117). https://patentable.app/patents/US-11947117","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11947117","json":"https://patentable.app/api/llm-context/US-11947117","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T15:08:30.460Z"}