Feature
Multiple functions、compact structure；user-friendly control、economical and practical. With an inversion structure, it relieves the greatest degree of testers'working strength, and be more suited for volume production testing. By working with a computer, the test data can be saved and transported for filing、remote control and quality verification.
Technical Parameters
1.Transmission Flat（A）, working dia. D=Φ60mm, PV<0.03μm(λ/20, @632.8nm)
2.Reference Flat (B) , working dia. D=Φ60mm, PV<0.03μm(λ/20, @632.8nm)
3.Optical Collimation System ————— working dia.D=Φ60mm, focal length f=200mm
4.Light Source —————— Laser ZN180(HE-NE)
5.Max Working Size —————— Φ2～Φ60mm
