{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8530811","patent":{"patent_number":"US-8530811","title":"Light field image sensor, method and applications","assignee":null,"inventors":[],"filing_date":"2009-07-24T00:00:00.000Z","publication_date":"2013-09-10T00:00:00.000Z","cpc_codes":["G01N","G01S","G01N"],"num_claims":29,"abstract":"An angle-sensitive pixel (ASP) device that uses the Talbot effect to detect the local intensity and incident angle of light includes two local diffraction gratings stacked above a photodiode. When illuminated by a plane wave, the upper grating generates a self-image at a selected Talbot depth. The second grating, placed at this depth, blocks or passes light depending upon incident angle. Several such structures, tuned to different incident angles, are sufficient to extract local incident angle and intensity. Arrays of such structures are sufficient to localize light sources in three dimensions without any additional optics."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Light field image sensor, method and applications","description":"An angle-sensitive pixel (ASP) device that uses the Talbot effect to detect the local intensity and incident angle of light includes two local diffraction gratings stacked above a photodiode. When ill","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8530811","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-8530811","citation_suggestion":"Patentable. \"Light field image sensor, method and applications\" (US-8530811). https://patentable.app/patents/US-8530811","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8530811","json":"https://patentable.app/api/llm-context/US-8530811","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T12:36:52.286Z"}