{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8482021","patent":{"patent_number":"US-8482021","title":"Light emitting device, light emitting device package and lighting system","assignee":null,"inventors":[],"filing_date":"2011-07-08T00:00:00.000Z","publication_date":"2013-07-09T00:00:00.000Z","cpc_codes":["H01L"],"num_claims":17,"abstract":"A light emitting device, a light emitting device package, and a lighting system are provided. The light emitting device includes: a second conductive semiconductor layer; an active layer over the second conductive semiconductor layer; a first conductive semiconductor layer over the active layer; and a second electrode layer including a reflective layer under the second conductive semiconductor layer. The active layer includes a second active layer that actually emits light on the reflective layer and a first active layer that does not emit light on the second active layer. A distance between the reflective layer and the second active layer satisfies a constructive interference condition."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Light emitting device, light emitting device package and lighting system","description":"A light emitting device, a light emitting device package, and a lighting system are provided. The light emitting device includes: a second conductive semiconductor layer; an active layer over the seco","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8482021","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-8482021","citation_suggestion":"Patentable. \"Light emitting device, light emitting device package and lighting system\" (US-8482021). https://patentable.app/patents/US-8482021","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8482021","json":"https://patentable.app/api/llm-context/US-8482021","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T08:37:58.532Z"}