Surface Roughness Control
Controlling surface roughness is critical to manufacturing high performance optics. Optical Perspective’s MicroFinish Topographer is a simple, low cost solution for measuring surface roughness on small, large and very large optics.
Previous roughness measuring options included stylus profilers that contact and can damage surfaces. Traditional optical profilers are expensive, part size limited and sensitive to vibration. Replicating large surfaces with silicon compounds contaminates the surface and can lead to coating problems. None of these solutions meet the exacting requirements of optical manufactures.
MicroFinish Topographer (MFT)


MFT for small optics, and for on-optic measurement of large optics
The MicroFinish Topographer is a precision phase measuring interferometer coupled with industry leading 4Sight data analysis software from 4D Technology.
Ease of use is assured by design. Place small optics (up to 100 mm diameter) on the MTF’s stage, or place the MTF on the surface to be measured. Three nylon support balls gently contact the surface. Simple tip/tilt and focus controls adjust the instrument for high contrast fringes. The next time you place the MFT on the surface it is ready to measure again, without adjustment. No other surface profiler has this measurement and analysis power combined with ease of use.
Please contact us today for a demonstration.