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:
Oct. 27, 2009
Filed:
Oct. 26, 2007
Mei-wei Tsao, Wilmington, DE (US);
Mei-Wei Tsao, Wilmington, DE (US);
Wilmington Infrared Technologies, Inc., Wilmington, DE (US);
Abstract
A compact spectrometer operable in a wavelength range of 4.5 or more microns includes an entrance slit, a collimating mirror, a grating, a focusing mirror and a two-dimensional array of detectors. At least some radiation passing through the slit follows a path that is reflected by the collimating mirror onto the grating, which in turn reflects at least some radiation onto the focusing mirror, which in turn reflects and focuses at least some radiation at a first focal plane and onto the detector array. Each column in the detector array corresponds to a wavelength in the 4.5 or more micron range, the detector array includes a plurality of columns that collectively correspond to wavelengths spanning the 4.5 or more micron range, and each adjacent pair of columns in the detector array corresponds to two wavelengths that differ by an equal amount.