Technical parameters: Test structure: fizeau vertical structure Test diameter: the diameter 25 mm Φ effectively Display mode: monitor (10.1 ") Test light source: semiconductor laser light source (wavelength 635nm) Alignment: simple two-point alignment Exposure mode: positive (no damage to operator's eye) Alignment field of view: plus or minus 0.5 degree Standard mirror accuracy: λ/20 Precision of full diameter detection of equipment: λ/10 Repeatability of measurement :PV was better than gap /50, and RMS was better than gap /100 Weight: about 10KG
