YC601U series laser interferometer adopts the design structure of the lens, the aperture of the light is 60mm, the instrument has good vibration isolation performance, suitable for the process inspection in the workshop, the plate inspection, and the inspection of small batches and various varieties of optical lenses. Standard lens: F0.6 / F0.7 / F1.0 / F1.5 / F2.0 / F3.0 / F4.5 / F5.6 / F8.0 / F8D/F16 / TF plane mirror the first class, other F number of lens can be customized.