4D Technology laser interferometer uses dynamic interferometry
The extended precision package for the PhaseCam 6000 more than doubles the laser interferometer’s precision in measuring the surfaces of optics. The device uses dynamic interferometry to make high-speed surface measurements despite vibration or air turbulence. It includes a fiber-coupled measurement head with a 5 m fiber and motorized controls.
4D Technology
Tucson, AZ
[email protected]
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PRESS RELEASE
4D Technology Introduces the Extended Precision Package for the PhaseCam 6000 Dynamic Interferometer
Tucson, AZ, August 3, 2010 - The Extended Precision Package (EPP) provides more than 2X improvement in optics surface measurement precision for the PhaseCam 6000 Dynamic Interferometer.
Extended precision metrology is critical for controlling optics polishing methods such as ion beam etching and Magnetorheological Finishing (MRF). These methods can create features with higher spatial frequency than traditional polishing methods; therefore, the metrology used to verify the polishing must also have higher precision in these frequencies. The EPP option for the PhaseCam 6000 meets this challenge by extending precision by more than 4X in this critical spatial range.
The PhaseCam 6000 is a compact and lightweight laser interferometer which utilizes Dynamic Interferometry to make high-speed surface measurements despite vibration or air turbulence. With a fiber-coupled measurement head and motorized controls the PhaseCam 6000 is ideal for use in on-machine metrology and other challenging environments. Applications include feedback for polishing of large, focal optics, verification of optical systems such as concave telescope mirrors and lens systems, and measurement of moving components such as deformable mirrors and adaptive optics.
The Extended Precision Package, which includes an electronics/optics unit and 5 meter fiber, greatly increases quality and throughput for optics manufacturers using modern polishing methods.
About 4D Technology Corporation
4D Technology Corporation (www.4DTechnology.com) develops and manufactures optical metrology instruments for applications in astronomy, aerospace, general optics and other industries.
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