{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8476577","patent":{"patent_number":"US-8476577","title":"Optical encoder","assignee":null,"inventors":[],"filing_date":"2010-11-29T00:00:00.000Z","publication_date":"2013-07-02T00:00:00.000Z","cpc_codes":["G01D"],"num_claims":15,"abstract":"A miniaturized optical encoder capable of obtaining a sufficient amount of light in the light receiving element is provided. An optical encoder 1 includes a scale 2 having scale markings 21 and a readhead 3 having a light source 31 that emits light to the scale 2, a scale-side lens 32 that transmits the light emitted from the light source 31 to the scale 2, and a light receiving element 33 that receives the light that has been reflected by the scale 2 and that has passed through the scale-side lens 32. The light source 31 is arranged between the scale-side lens 32 and the light receiving element 33, and a distance between the light source 31 and the scale-side lens 32 is set to be a focal distance fs of the scale-side lens 32. An optical axis Lsrc of the light source 31 is matched with an optical axis Ls of the scale-side lens 32 in a reading direction of the scale markings 21 and is separated from an optical axis Ls of the scale-side lens 32 by a predetermined distance D in a direction perpendicular to the reading direction of the scale markings 21. "},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Optical encoder","description":"A miniaturized optical encoder capable of obtaining a sufficient amount of light in the light receiving element is provided. An optical encoder 1 includes a scale 2 having scale markings 21 and a read","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8476577","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-8476577","citation_suggestion":"Patentable. \"Optical encoder\" (US-8476577). https://patentable.app/patents/US-8476577","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8476577","json":"https://patentable.app/api/llm-context/US-8476577","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T21:22:11.542Z"}