IR Interferometry
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The INTERFIRE II family of infra-red interferometers is available with a choice of lasers operating at 10.6 microns wavelength, in the 3-5 micron wavelength range, at 1.55 microns or 850 nanometres and allows fringes to be obtained quickly and easily with excellent signal-to-noise.
The INTERFIRE II series of infrared interferometers can be used in development, test or production laboratories and is used for the accurate measurement of wavefront aberration of thermal imaging lenses, optical homogeneity of infra red materials and flatness of optical surfaces.
The construction of the INTERFIRE II, combined with a fast warm-up time means that fringe images can be quickly and easily produced with no focus drift. All instruments feature a focal plane array camera which is much more sensitive than previous cameras and has significantly reduced noise, allowing high quality images of fringes to be acquired quickly, easily and with no focus drift. When used with phase shifting fringe analysis software, the acquisition of fringes is much more reliable. The phase shifting technique used allows the highest degree of precision and enables full use of standard accessories.
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