Fizeau interferometers: AccuFiz

The AccuFiz laser interferometer offers an unrivalled combination of performance, quality and value, for measurements of surface shape and transmitted wavefront quality.

The AccuFiz interferometer is extremely easy to use in confined laboratory spaces. Its compact, lightweight design is extremely rigid for maximum stability in any orientation or environment.

In both production and laboratory environments, the AccuFiz interferometer offers the best repeatability in the industry. Only AccuFiz includes SmartZoom™ to ensure precise lateral resolution across the entire 1X-10X zoom range. Diffraction-limited imaging provides unrivalled resolution, particularly at medium spatial frequencies, to measure polishing artifacts that other interferometers miss.

The AccuFiz interferometer is designed to excel in challenging conditions. With the industry’s only continuously adjustable extended source, you can optimize test conditions and reduce consistent artifacts from dust, defects and stray reflections, resulting in extremely low measurement noise. On the shop floor or in a clean room, optional dynamic interferometry enables exposure times of 10 µs, so you can measure despite vibrations, without isolation.

Wireless remote control makes it easy to set up measurements over long distances, and minimizes disturbance to the optical path.

You can even control the system from an Android device or iPhone.

A flexible Fizeau interferometer for a wide range of measurements

The comprehensive AccuFiz product range offers wavelengths from 355 nm to 10.6 µm, apertures from 33 to 800 mm, and horizontal and vertical mounting configurations, providing the right options for a wide range of applications and budgets.

The optional high-resolution 6 megapixel camera captures the highest slopes of any commercial interferometer. The optional surface isolation source adds the ability to measure flat, parallel surfaces without back surface coatings or treatments. Quantify shape, optical thickness up to 100 µm, corner and homogeneity.

A motorized tip and adjustable brightness alignment camera simplify fine adjustments. To complete your setup, 4D offers the industry’s widest range of F/# spheres, as well as optical supports, beam expanders and accessories for virtually any test configuration.

Easy-to-use software

The 4SightTM wavefront analysis software, included with every AccuFiz, is extremely easy to use. 2D and 3D displays, filtering, thresholding and masking tools highlight the shape and texture of the surface being analyzed. Zernike, Seidel, geometric and diffraction analyses are easy to perform.

Comprehensive data-sharing functions let you read, write, save and print data in many popular file formats for instrument comparison.

Optional 4Front™ software lets you measure system alignment in real time and quickly average measurements.

Discover the AccuFiz interferometer range: