| FOR IMMEDIATE RELEASE |
Bergisch Gladbach, Germany, May 2006
Non-contact measurement of spherical, aspherical, and cylindrical surfaces
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| FRT GmbH in Bergisch Gladbach, Germany has extended its portfolio of highly precise surface measuring systems by yet another innovative product. Unlike to optical lenses with spherical surfaces, aspheres cannot be measured by simply employing methods of interferometry. Holographical elements for wavefront correction are expensive and only suited for one particular lens geometry. The new MicroGlider® Asphere scans a surface with a punctiform sensor. This ensures a maximum of flexibility with regard to surveying a multitude of different lens types. The chromatic sensor FRT CWL works quickly, precisely, and contact-free. This new measuring approach makes it possible to acquire data of lenses even with extreme geometries up to the shape of a hemisphere. System stability - required in particular for the high measuring precision - is ensured by an air bearing rotary table with torque-direct drive.
The MicroGlider® Asphere can handle polished, ground, turned or milled optical parts and detects geometry and roughness. Customizable parameter sets for measuring different lens geometries, a function for the determination of aspheric parameters as well as an automatic comparison between nominal and actual geometries belong to the standard functional range of this device. The system’s radial axis is equipped with a highly precise path measuring system, which allows to determine absolute radii. It is possible to measure lens heights from 2 to 50 mm with a diameter from 2 to 100 mm. The MicroGlider® Asphere is also available as a 3D version.
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Press Contact:
Dr. Thomas Fries
FRT GmbH
Friedrich-Ebert-Straße
51429 Bergisch Gladbach
Tel.: +49 (0)2204 / 84 243 0
Email: info@frt-gmbh.com |
Dr. Oliver Schillings
Alpha & Omega PR
Am Mühlenweg 47
51465 Bergisch Gladbach
Tel.: +49 (0)2202 / 95 900 2
Email: o.schillings@aopr.de
Internet: http://www.aopr.de |
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