{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8537288","patent":{"patent_number":"US-8537288","title":"Projector comprising an expanding and contracting member having a temperature coefficient that counters the increase and decrease of a focal distance of a projection lens caused by temperature changes","assignee":null,"inventors":[],"filing_date":"2010-04-19T00:00:00.000Z","publication_date":"2013-09-17T00:00:00.000Z","cpc_codes":["G02F","H04N","H04N","H04N"],"num_claims":11,"abstract":"A projector includes: a display device which modulates illumination light; a projection lens which projects modulation light produced by the display device; and a holding device which has a holder member supporting the display device, a frame member supporting the projection lens and functions as a base capable of supporting the holder member, and an expanding and contracting member disposed between the frame member and the display device, wherein a temperature coefficient for the expansion and contraction of the expanding and contracting member in the direction of the optical axis of the projection lens corresponds to a temperature coefficient for the increase and decrease of the focal distance of the projection lens."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Projector comprising an expanding and contracting member having a temperature coefficient that counters the increase and decrease of a focal distance of a projection lens caused by temperature changes","description":"A projector includes: a display device which modulates illumination light; a projection lens which projects modulation light produced by the display device; and a holding device which has a holder mem","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8537288","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-8537288","citation_suggestion":"Patentable. \"Projector comprising an expanding and contracting member having a temperature coefficient that counters the increase and decrease of a focal distance of a projection lens caused by temperature changes\" (US-8537288). https://patentable.app/patents/US-8537288","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8537288","json":"https://patentable.app/api/llm-context/US-8537288","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T17:16:14.412Z"}