{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9652865","patent":{"patent_number":"US-9652865","title":"Optical method for characterizing a diffractive surface and apparatus for implementing such a method","assignee":null,"inventors":[],"filing_date":"2014-03-26T00:00:00.000Z","publication_date":"2017-05-16T00:00:00.000Z","cpc_codes":["G06T","G01N","G06T","G06T","G06T","G01N","G01N","G06T","G06T","G06T"],"num_claims":13,"abstract":"An optical method for characterizing a diffractive surface having a crystal grain structure, including the steps of: a) successively illuminating said surface with a plurality of light beams (Fi) having propagation directions inclined by a same angle Θ; relative to the normal to the surface and of which the projections on the surface form azimuth angle φ{umlaut over (ι)} that are different relative to a reference direction; b) acquiring an image of the surface corresponding to each of the light beams; and c) digitally processing images to obtain at least one item of information on at least one property of the surface chosen from: the grain structure, texture and level of ordering thereof. An optical head (TO) and apparatus for implementing such a method."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Optical method for characterizing a diffractive surface and apparatus for implementing such a method","description":"An optical method for characterizing a diffractive surface having a crystal grain structure, including the steps of: a) successively illuminating said surface with a plurality of light beams (Fi) havi","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9652865","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-9652865","citation_suggestion":"Patentable. \"Optical method for characterizing a diffractive surface and apparatus for implementing such a method\" (US-9652865). https://patentable.app/patents/US-9652865","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9652865","json":"https://patentable.app/api/llm-context/US-9652865","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:22:39.850Z"}