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:
May. 08, 2007
Filed:
Apr. 08, 2005
Mark P. Mcneal, Marlborough, MA (US);
Peter G. Loges, Natick, MA (US);
Irina Puscasu, Brighton, MA (US);
James T. Daly, Mansfield, MA (US);
Edward A. Johnson, Bedford, MA (US);
Mark P. McNeal, Marlborough, MA (US);
Peter G. Loges, Natick, MA (US);
Irina Puscasu, Brighton, MA (US);
James T. Daly, Mansfield, MA (US);
Edward A. Johnson, Bedford, MA (US);
Ion Optics, Inc., Waltham, MA (US);
Abstract
An absorption spectroscopy apparatus including a sample cell having a central axis, and a side wall coaxially positioned about the axis. The side wall defines a generally circular cross-section of the cell as taken along a plane extending perpendicular to the axis, wherein the generally circular cross-section of the sample cell has an average radius. The side wall includes a plurality of light reflective segments arrayed about the axis, wherein each reflective segment has a cross-section taken along a plane extending perpendicular to the axis of the cell that is concave with respect to the axis. The concave cross-section of each segment has an average radius that is unequal to the average radius of the generally circular cross-section of the sample cell. Among other aspects and advantages, the apparatus of the present disclosure is able to use incoherent, non-collimated light sources while maintaining high optical throughput efficiencies.