The Taylor hobson Form Talysurf® PGI Optics Range of measuring instruments deliver surface finish and form measurement of plastic lenses, spheres, aspheres, freeforms, IR glass & crystals and diffractives up to 300 mm in diameter. Our patented PGI (Phase Grating Interferometer) technology enables you to measure large sags with short length styli for the highest accuracy measurements. We designed the PGI optical profilometers with powerful aspheric analysis software tools to improve your capacity and capability.
The high performance Taylor Hobson Contact Optical Measurement Instruments are: Form Talysurf® PGI Freeform, Form Talysurf® PGI Matrix and Form Talysurf® PGI Optics
(High performance & high accuracy Taylor Hobson 3D Non-contact Optical Measurement Systems are: LUPHOScan HD, LUPHOScan SD, LUPHOScan SL)