AccuFiz measuring large optics at NOAO. Photo courtesy of NOAO.
High precision interferometer for optics and transmitted wavefront error has improved spatial resolution
4D Technology Corporation, a wholly owned subsidiary of Onto Innovation Inc., announces the release of the AccuFiz® Fizeau interferometer, now with a nine-megapixel (9 Mpx) camera for higher slope tolerance through superior spatial resolution. The new camera can resolve surfaces with high slopes, up to 1250 interference fringes per field of view. It will also provide a greater tolerance in measuring isolated islands of data in a measurement.
As a Fizeau interferometer, AccuFiz instruments are used for qualifying the shape and flatness of optical surfaces like mirrors and lenses, and for measuring the transmitted wavefront error of optical systems, and the homogeneity of optical materials.
As a 4D Technology instrument, AccuFiz systems offer powerful options such as switchable dynamic acquisition, and a full range of apertures from 100 mm to 600 mm in diameter and a range of operating wavelengths from 532 nanometers to 1550 nanometers.
AccuFiz, with 450 mm beam expander, measuring large optics on 4Sight Focus Software
The AccuFiz interferometer runs on 4Sight Focus, 4D Technology’s 64-bit multithreaded software platform. 4Sight Focus provides a clear, simplified interface and blazing fast analysis. New functionality in the software includes enhanced masking, a powerful built-in database, and the technology for acquiring and manipulating large numbers of measurements very quickly.
Said Erik Novak, General Manager of 4D Technology, “The AccuFiz interferometer line represents the most versatile suite of instruments we offer for optical metrology. It’s a full-featured and highly automated family, with a mature range of accessories. Customers with vibration sensitive, long-path applications use dynamic interferometry, while those that can tolerate temporal phase shifting enjoy an excellent Instrument Transfer Function, ensuring high precision, low retrace error measurements.”
The new AccuFiz laser interferometer with a nine-megapixel camera and the 4Sight Focus analysis software continues 4D Technology’s tradition of offering some of the world’s highest-performing interferometers, backed by industry-leading service and applications support.
About 4D Technology
4D Technology, a subsidiary of Onto Innovation, is a world-leading provider of dynamic and high precision three-dimensional surface metrology solutions.