{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8462603","patent":{"patent_number":"US-8462603","title":"Device for recording and reading data on a multi-layer optical disc","assignee":null,"inventors":[],"filing_date":"2012-03-22T00:00:00.000Z","publication_date":"2013-06-11T00:00:00.000Z","cpc_codes":["G11B","B82Y","G11B","G11B","G11B"],"num_claims":4,"abstract":"A three-dimensional optical memory device comprises an optical disc positioning system, two sources of radiation with wavelengths λ1 and λ2, a focusing system, an illumination system, focusing system positioning means, a spectrum splitter, an optical sensor, and a control unit. The radiation source with wavelength λ2 is an array of laser diodes, which optical axes are parallel and lie in the same plane. The illumination system comprises: a cylindrical lens positioned so that the generatrix of its cylindrical surface is parallel to the plane of the p-n junctions of the laser diodes; a focusing lens; and a stabilizing circuit comprising a beam splitter situated between the focusing lens and the cylindrical lens, a second optical sensor optically coupled to the focusing lens via the beam splitter, and a stabilizer coupled to the focusing lens, wherein the stabilizer and the second optical sensor are electrically connected to the control unit."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Device for recording and reading data on a multi-layer optical disc","description":"A three-dimensional optical memory device comprises an optical disc positioning system, two sources of radiation with wavelengths λ1 and λ2, a focusing system, an illumination system, focusing system ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8462603","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-8462603","citation_suggestion":"Patentable. \"Device for recording and reading data on a multi-layer optical disc\" (US-8462603). https://patentable.app/patents/US-8462603","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8462603","json":"https://patentable.app/api/llm-context/US-8462603","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T07:46:03.779Z"}