Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News
Email Facebook Twitter Google+ LinkedIn Comments

  • 4D Technology Wins Circle of Excellence Award

Photonics Spectra
Jan 2004
PhaseCam 4000

PhaseCam 4000The ultrahigh-speed PhaseCam 4000 interferometer system from 4D Technology Corp. of Tucson, Ariz., captures high-accuracy, quantitative optical phase measurements. It uses a computer-generated holographic diffraction grating and a polarization phase mask to simultaneously create four phase-shifted interferograms on a single, high-resolution detector array. The system can acquire data 10,000 times faster than conventional systems, eliminating the need for bulky vibration isolation equipment and enabling the capture and study of transient or dynamic events.

A significant revision of the original PhaseCam, the 4000's rms accuracy and repeatability have been improved by a factor of 10, and it can accommodate a detector that is four times larger at 4 million pixels. It offers remote focus ability, vacuum compatibility, user-adjustable beam ratio and focus, and high-power laser options.

The 4Sight software provides the user interface for PhaseCam data acquisition and analysis. This entirely new application features a high-speed burst acquisition mode, diffraction and geometrical surface analysis, and a remote ActiveX interface that allows control of the instrument from third-party programs.

Other features include parametric vibrational modal analysis, customizable 2- and 3-D data displays, an easy-to-use data simulator and a robust Zernike aberration fitting tool. Multiple formats are supported to simplify data transfer with a variety of other software programs.

Applications include measurement of transient gas density (e.g., aerodynamic flow fields and atmospheric turbulence), testing of large aerospace and astronomy optical systems, and vibration analysis of specular and diffuse surfaces such as deformable mirrors and turbine blades.

An instrument that employs the interference of lightwaves to measure the accuracy of optical surfaces; it can measure a length in terms of the length of a wave of light by using interference phenomena based on the wave characteristics of light. Interferometers are used extensively for testing optical elements during manufacture. Typical designs include the Michelson, Twyman-Green and Fizeau interferometers. The basic interferometer components are a light source, a beamsplitter, a reference...
Terms & Conditions Privacy Policy About Us Contact Us
back to top

Facebook Twitter Instagram LinkedIn YouTube RSS
©2016 Photonics Media
x Subscribe to Photonics Spectra magazine - FREE!