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:
Jul. 20, 1999
Filed:
Apr. 08, 1997
Lawrence E Curtiss, Concord, MA (US);
William A Stevenson, Concord, MA (US);
Other;
Abstract
A system for spectroscopic monitoring that includes a broadband source of radiation, structure defining a non-elongate entrance aperture for receiving radiation to be analyzed along a first path; dispersion structure disposed in the first path for spatially dispersing the radiation in the first path as a function of wavelength, structure defining a non-elongate exit aperture for receiving a portion of the dispersed radiation, detector structure for detecting radiation passed through said exit aperture structure, and conical astigmatism reducing reflector structure disposed in the radiation path between the dispersion structure and the exit aperture structure for reducing astigmatism.