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:
Apr. 26, 2016
Filed:
May. 30, 2013
GE Healthcare Bio-sciences Ab, Uppsala, SE;
GE Healthcare Bio-Sciences AB, Uppsala, SE;
Abstract
Disclosed is an apparatus for measuring the absorbance of a substance in a solution, comprising: i) a sample cell () of known path length (b) for containing said solution (S), said cell being transparent to light of a predefined wavelength spectrum; ii) plural LED's each being independently operable by means of a controller () each for emitting light, within said predefined wavelength spectrum, along a light path; iii) a band pass filter () in the light path; iv) a beam splitter () for dividing light from said source propagating along the path into a first portion and a second portion, said first portion being directable by the beam splitter toward a reference detector () and said second portion being directable into the cell (); v) a reference detector () for detecting the intensity of said first portion of light directed by said beam splitter; and vi) a sample detector () for detecting the intensity of the second portion propagating from the cell; the apparatus allowing a sample in the cell to be inexpensively subjected to more than one wavelength of light for quicker or more accurate analysis.