Photometric integrating sphere

The utility model relates to the technical field of optical radiation measurement, and discloses a photometric integrating sphere, which comprises a supporting seat, the top of the supporting seat is fixedly connected with a mounting plate, one side of the mounting plate is in threaded connection with a bolt, the middle of the bolt is sleeved with a connecting block, one side of the connecting block is fixedly connected with a bearing plate, and the bearing plate is fixedly connected with the mounting plate. And a slide way is formed in the bearing plate. Compared with the prior art, the lifting device has the following advantages and effects that a worker connects a bolt into a connecting block in a threaded mode and enables the bolt to extend into a mounting plate, so that a bearing plate can be fixed on one side of the mounting plate, and then the worker screws a lifting base according to the distance between the bearing plate and the ground; due to the fact that the lifting base is in threaded connection