US 11,733,170 B2
Optical sensor system for quantitative colorimetric liquid analysis
Minhua Lu, Mohegan Lake, NY (US); Vince Siu, Thornhill (CA); Russell A. Budd, North Salem, NY (US); Youssef Anthony Asaad, Briarcliff Manor, NY (US); and Evan Colgan, Montvale, NJ (US)
Assigned to International Business Machines Corporation, Armonk, NY (US)
Filed by International Business Machines Corporation, Armonk, NY (US)
Filed on Aug. 7, 2019, as Appl. No. 16/534,400.
Prior Publication US 2021/0041368 A1, Feb. 11, 2021
Int. Cl. G01N 21/80 (2006.01); G01N 21/84 (2006.01); H04M 1/72409 (2021.01); G01N 21/77 (2006.01)
CPC G01N 21/80 (2013.01) [G01N 21/8483 (2013.01); H04M 1/72409 (2021.01); G01N 2021/7759 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An optical detector, comprising:
a vessel for containing a liquid sample;
a light source on a first side of the vessel;
a first sensor on a second side of the vessel opposite the first side of the vessel and along a light path of the light source, with the first sensor located directly across the vessel from the light source;
a second sensor on a third side of the vessel at an angle θ with respect to the light path; and
a cube-shaped housing, wherein the light source is located on one face of the cube-shaped housing, the first sensor is located on another face of the cube-shaped housing opposite the light source, and the second sensor is located on yet another face of the cube-shaped housing, and wherein the vessel is present in a middle of the cube-shaped housing between the light source, the first sensor and the second sensor.