{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9749603","patent":{"patent_number":"US-9749603","title":"Projector light source unit having intensity controller","assignee":null,"inventors":[],"filing_date":"2015-07-20T00:00:00.000Z","publication_date":"2017-08-29T00:00:00.000Z","cpc_codes":["H04N","H04N","H04N","H04N"],"num_claims":11,"abstract":"A light source unit includes: a plurality of elemental light sources; an optical sensor; a light quantity measurement circuit; and a control circuit. The plurality of elemental light sources each include one or more light emitting elements, one or more drive circuits, a focusing optical system, and an optical fiber. The one or more drive circuits selectively operate in a driving state or in a non-driving state. The control circuit performs a sequence that sequentially acquires light quantity measurement data by sequentially selecting one of the plurality of elemental light sources, putting at least one of the one or more drive circuits included in the selected elemental light source into a first state, and putting the plurality of drive circuits other than the at least one drive circuit into a second state, and detects abnormality based on a plurality of pieces of the acquired light quantity measurement data."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Projector light source unit having intensity controller","description":"A light source unit includes: a plurality of elemental light sources; an optical sensor; a light quantity measurement circuit; and a control circuit. The plurality of elemental light sources each incl","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9749603","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-9749603","citation_suggestion":"Patentable. \"Projector light source unit having intensity controller\" (US-9749603). https://patentable.app/patents/US-9749603","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9749603","json":"https://patentable.app/api/llm-context/US-9749603","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T17:27:47.544Z"}