Product Presentation Jingyi Optoelectronics' universal fluorescence quantum efficiency integrating sphere has three openings, namely the light incident port, the sample port and the light exit port. The light incident port is equipped with a collimator to collimate the excitation light source to the sample. The light exit port can be connected to the detector fiber spectrometer through an optical fiber, and the size of the detection port can also be customized according to needs. The sample holder is located at the sample port. The sample is placed on the sample holder and then placed inside the integrating sphere. It can be used for measuring samples such as liquids, powders, and films.