{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9602715","patent":{"patent_number":"US-9602715","title":"Adaptable operating frequency of a variable focal length lens in an adjustable magnification optical system","assignee":null,"inventors":[],"filing_date":"2015-07-09T00:00:00.000Z","publication_date":"2017-03-21T00:00:00.000Z","cpc_codes":["G02F","H04N"],"num_claims":20,"abstract":"An imaging system is provided for a precision machine vision inspection or metrology system. The imaging system optical path includes a variable magnification lens portion and a variable focal length lens portion. The variable magnification lens portion includes various magnification states (e.g., 0.5× to 100×, using interchangeable lenses, or the like.) The variable focal length lens portion (e.g., including a tunable acoustic gradient index of refraction (“TAG”) lens) is operated at different focal length scanning frequencies depending on the magnification state. A TAG lens operated in this manner provides a relatively consistent range of focus (e.g., corresponding to a number of depths of field) with various magnification lenses, without limiting the effective numerical aperture of the imaging system."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Adaptable operating frequency of a variable focal length lens in an adjustable magnification optical system","description":"An imaging system is provided for a precision machine vision inspection or metrology system. The imaging system optical path includes a variable magnification lens portion and a variable focal length ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9602715","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-9602715","citation_suggestion":"Patentable. \"Adaptable operating frequency of a variable focal length lens in an adjustable magnification optical system\" (US-9602715). https://patentable.app/patents/US-9602715","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9602715","json":"https://patentable.app/api/llm-context/US-9602715","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T11:15:50.586Z"}