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:
Mar. 14, 2023
Filed:
Jul. 26, 2019
Nederlandse Organisatie Voor Toegepast-natuurwetenschappelijk Onderzoek Tno, 's-Gravenhage, NL;
Jerome Caron, Leiden, NL;
Henri Johannes Petrus Vink, The Hague, NL;
Nederlandse Organisatie voor toegepast-natuurwentenschappelijk onderzoek TNO, 's-Gravenhage, NL;
Abstract
A spectral imager () may use an entrance telescope () to spatially image an object (O), at least in the across-slit direction (X), onto a physical slit (Se) of a spectrometer (). The spectrometer () may include a slit homogenizer () such as a rod lens configured to spatially image an aperture stop (AS) in the across-slit direction (X) as a virtual slit image (Ih). Formation of a detection image (Id) which is spectrally resolved along a spectral axis (X') may includes spatially imaging the virtual slit image (Ih), at least in the across-slit direction (X), at a detector plane (Pd). This may achieve a more homogeneous illumination of the spectrometer slit and improve measurement accuracy and reproducibility.