Projects for designing and creating lenses do not stop after assembly: lenses need to be qualified and tested against customer requirements. Demcon Focal is well suited to integrate this into any lens development project by using market standards for metrology or in various cases by creating in-house qualification systems for wave front aberrations, distortion, field curvature, MTF or other means to determine the performance of an assembled lens.

Project specifications

• Customized interferometric double pass wave front analysis.
• Distortion measurement < 100 nm
• Field curvature
• MTF values using various targets/grids
• Through focus scans
• Telecentricity