IdealPhotonics' integrating sphere is a spherical optical device that achieves optical radiation homogenization and spatial integration through a highly reflective internal cavity (typically coated with BaSO₄ or PTFE). It is used to accurately measure the spatial distribution characteristics of total luminous flux, scatterer reflectivity, or laser power.It achieves high-precision luminous flux measurement or a uniform light source through uniform scattering, and is suitable for spectral analysis, LED testing, and optical device calibration.