Optical element full-aperture coating device and method

The invention is suitable for the technical field of optical element coating, and provides an optical element full-aperture coating device and method. The coating device comprises a clamping tool body, clamping assemblies, side panels and at least one jacking assembly. The clamping tool body comprises a base plate and at least two limiting blocks, a containing hole is formed in the base plate, and the limiting blocks are symmetrically arranged on the periphery of the containing hole. The clamping assemblies are arranged in the limiting blocks in a sliding mode. The side panels are arranged on the two sides of the limiting blocks and fixedly connected with the limiting blocks. Ejecting assemblies penetrate through the limiting blocks and abut against the end faces of the clamping assemblies. According to the coating device, the side panels are arranged, and the clamping assemblies are made of polytetrafluoroethylene materials, so that the coating device is high in structural strength, small in clamping stress,