Production feasibility: Aspherical Cylinder, Toroid, Ellipsoid, Off-axis Asphere,　XY polynomials, Standard polynomial, Zernike's polynomial surface.

Natsume Optical Corporation (NOC) accomplishes nanometer precision of the surface accuracy by Ultra-precision grinding/cutting technology and surface correction technology such as Magnetorheological Finishing (MRF). Nanometer Precision is also achieved by interferometrical measurement using the CGH/Double-pass null test and precise 3D profiler (Panasonic - UA3P).

Size: φ20 - 200mm
Achievable accuracy: PVr < λ/20

UA3P (Ultra-precision 3D Profiler: Panasonic)