Patent ID: 8737857
Filing Date: 2014-05-27
Classification: G03G

Abstract:
1. A detecting apparatus to at least assist in determining a concentration of colorants within a carrier liquid, the colorants at least absorbing light and/or diverging light, comprising: one or more light sources to emit light; and one or more light detectors to detect light, the light sources and the light detectors positioned in relation to one another such that i) light directly emitted by the light sources that has not been absorbed or diverged by the colorants is detected, and ii) light diverged by the colorants within the carrier liquid is detected, wherein the light diverged by the colorants includes light that is fluoresced and/or scattered by the colorants, wherein the concentration of the colorants is determined based on the light directly emitted by the light sources that has not been absorbed or diverged by the colorants and/or on the light diverged by the colorants within the carrier liquid.