Patent ID: 8063384

Claim:
A detection system in which a plurality of kinds of substances in a solution or solid are irradiated with excitation lights with dominant wavelengths different from each other so as to be excited to generate fluorescence or phosphorescence, and the fluorescence or phosphorescence with dominant wavelengths different from each other generated from the solution or solid in a relaxation process is detected to measure a concentration or state of the plurality of kinds of substances, the detection system comprising a probe including a lens and a plurality of optical fibers arranged on a first end of the lens, the optical fibers propagating therethrough the fluorescence or phosphorescence with dominant wavelengths different from each other, wherein said probe receives the excitation lights at the first end of the lens and converges the excitation lights at the solution or the solid, and said probe receives the fluorescence or phosphorescence at a second end of the lens and converges the fluorescence or phosphorescence at tips of the plurality of optical fibers propagating therethrough the excitation lights attributed to the occurrence of the fluorescence or phosphorescence, wherein the lens comprises a single lens or a plurality of lenses arranged on a same optical axis, and wherein the plurality of optical fibers propagate therethrough the excitation lights with dominant wavelengths different from each other to the first end of the lens, and the plurality of optical fibers propagate the excitation lights and the fluorescence or phosphorescence to detectors different from each other through multiplexers/demultiplexers adapted to separate the excitation lights and the fluorescence or phosphorescence.