Constant-temperature integrating sphere device

The utility model belongs to the technical field of metering and testing of luminous intensity, chromaticity and radiation intensity of lamps, and particularly discloses a constant-temperature integrating sphere device, which comprises a hollow integrating sphere. A white diffuse reflection layer is coated on the inner wall surface of an integrating sphere casing, a plurality of detector interfaces are disposed on the integrating sphere, a heating device, a heat insulation layer and a positioning device used for positioning the heating device are arranged on the outer surface of the integrating sphere casing, and the integrating sphere is further provided with a temperature control system used for controlling temperature. The constant-temperature integrating sphere device can ensure accurate temperature control, and is fine in heat protection performance, more convenient in use, simple in structure and lower in manufacturing cost.