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. 19, 2021
Filed:
Sep. 28, 2018
The Board of Trustees of the University of Illinois, Urbana, IL (US);
Brian T. Cunningham, Champaign, IL (US);
Kenneth D. Long, Champaign, IL (US);
The Board of Trustees of the University of Illinois, Urbana, IL (US);
Abstract
A smartphone is optically coupled to an apparatus that can operate in multiple modes to perform transmission, reflectance, intensity, or scattered light spectroscopy on a sample provided, in an appropriately configured sample cartridge. The apparatus includes a first illumination optical path for illuminating the sample, with light from a light source, on the smartphone for transmission, reflectance, and scattered light spectroscopy. The apparatus also includes a second illumination optical path for illuminating the sample with light from a laser diode for intensity spectroscopy. The apparatus farther includes a collection optical path for collecting light from the sample in each of the modes. An image sensor on the smartphone receives the collected light via a diffraction grating to obtain a spectrum image. The first illumination optical path is substantially parallel to the collection optical path, whereas the second illumination optical path is substantially orthogonal to the collection path.