{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8520488","patent":{"patent_number":"US-8520488","title":"Optical pickup device that forms an oval spot on a disc having a small angle with respect to a radial axis","assignee":null,"inventors":[],"filing_date":"2011-07-11T00:00:00.000Z","publication_date":"2013-08-27T00:00:00.000Z","cpc_codes":["G11B","G11B","G11B","G11B","G11B","G11B","G11B"],"num_claims":11,"abstract":"An optical pickup device, an optical drive using the same, and a method of forming a beam spot are provided. The optical pickup includes a light source system that includes a light source corresponding to at least one of a digital versatile disc (DVD) and a Blu-ray disc (BD). The light source forms a beam spot having an oval shape with a long axis and a short axis on an information recording track of the disc, and the light source is disposed such that the long axis is maintained at an angle ranging from 0° to 30° with respect to a radial direction passing through a rotation center of the disc."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Optical pickup device that forms an oval spot on a disc having a small angle with respect to a radial axis","description":"An optical pickup device, an optical drive using the same, and a method of forming a beam spot are provided. The optical pickup includes a light source system that includes a light source correspondin","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8520488","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-8520488","citation_suggestion":"Patentable. \"Optical pickup device that forms an oval spot on a disc having a small angle with respect to a radial axis\" (US-8520488). https://patentable.app/patents/US-8520488","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8520488","json":"https://patentable.app/api/llm-context/US-8520488","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T04:23:47.357Z"}