The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 14, 2004
Filed:
Jan. 23, 2002
Brian J. Marquardt, Bothell, WA (US);
Lloyd W. Burgess, Seattle, WA (US);
University of Washington, Seattle, WA (US);
Abstract
This invention provides a spherical lens optical immersion probe for use in analysis of solids, liquids, gases, powders, suspensions, slurries, particles and other homogeneous or heterogeneous samples. The use of a spherical lens in an optical immersion probe confers many advantages over traditional immersion probes including ease of use and accuracy of focus. The probe of this invention has applications to many types of optical spectroscopy methods including ultraviolet/visible (UV-Vis), near infrared (NIR), mid-infrared (FTIR), fluorescence, and Raman spectroscopy. The spherical lens used in this invention is both the optical and sample interface in the analytical system, and may be used to both focus the excitation source and to collecting signal. Importantly, this invention has broad applications to any optical analytical technology that necessitates an optical immersion probe.