{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8508506","patent":{"patent_number":"US-8508506","title":"Illumination device and electro-optical apparatus","assignee":null,"inventors":[],"filing_date":"2009-03-27T00:00:00.000Z","publication_date":"2013-08-13T00:00:00.000Z","cpc_codes":["G06F","G06F","G02F","G02F"],"num_claims":7,"abstract":"An illumination device is provided which includes: an illumination light source that emits an illumination light; a first position-detecting light source that emits a first position detecting light; a second position-detecting light source that emits a second position detecting light; a first light guide plate which is provided with a first light incident surface that introduces the illumination light and the first position detecting light to an inside thereof and a first light emitting surface that is disposed to cross the first light incident surface while being disposed to be adjacent thereto and that emits therefrom the illumination light and the first position detecting light propagating through the inside; and a second light guide plate which is provided with a second light incident surface that is disposed to overlap with the first light guide plate in plan view and that introduces the second position detecting light to an inside thereof and a second light emitting surface that is disposed to cross the second light incident surface while being disposed to be adjacent thereto and that emits therefrom the second position detecting light propagating through the inside concurrently with the first position detecting light."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Illumination device and electro-optical apparatus","description":"An illumination device is provided which includes: an illumination light source that emits an illumination light; a first position-detecting light source that emits a first position detecting light; a","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8508506","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-8508506","citation_suggestion":"Patentable. \"Illumination device and electro-optical apparatus\" (US-8508506). https://patentable.app/patents/US-8508506","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8508506","json":"https://patentable.app/api/llm-context/US-8508506","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T02:39:54.567Z"}