{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8477580","patent":{"patent_number":"US-8477580","title":"Objective lens, optical pickup, and optical drive device","assignee":null,"inventors":[],"filing_date":"2011-09-06T00:00:00.000Z","publication_date":"2013-07-02T00:00:00.000Z","cpc_codes":["G11B","G11B","G11B","G11B"],"num_claims":8,"abstract":"Provided is an objective lens, which is provided in an optical pickup including a spherical aberration correction mechanism which performs a spherical aberration correction with respect to laser light applied to a recording layer of an optical recording medium, having the recording layer on which information can be recorded at a plurality of positions in a depth direction, via the objective lens, and a tilt correction unit which varies a lens tilt angle which is a tilt angle of the objective lens, thereby performing a tilt correction."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Objective lens, optical pickup, and optical drive device","description":"Provided is an objective lens, which is provided in an optical pickup including a spherical aberration correction mechanism which performs a spherical aberration correction with respect to laser light","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8477580","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-8477580","citation_suggestion":"Patentable. \"Objective lens, optical pickup, and optical drive device\" (US-8477580). https://patentable.app/patents/US-8477580","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8477580","json":"https://patentable.app/api/llm-context/US-8477580","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T15:07:49.878Z"}