Select Page

AccuFiz Visible

Compact, high performance Fizeau interferometers for shop-wide optics measurement at visible wavelengths.

An unmatched combination of performance, quality and value, for accurate, repeatable measurement of surface shape and transmitted wavefront quality. 

4D Technology AccuFiz Fizeau Interferometer

The AccuFiz laser interferometer offers an unmatched combination of performance, quality and value, for accurate, repeatable measurement of surface shape and transmitted wavefront quality. 

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

In production environments as well as in the lab the AccuFiz provides industry leading repeatability. Only AccuFiz includes Smart Zoom™ to ensure accurate lateral resolution over the entire 1X–10X zoom range. Diffraction-limited imaging provides unparalleled resolution, particularly at mid-spatial frequencies, to measure polishing artifacts that other interferometers miss.

AccuFiz Specs

Configuration Fizeau interferometer
Acquisition Phase-shifting; optional vibration-insensitive dynamic measurement
Source Internal
Wavelength 632.8  nm or 532 nm
Aperture 100 mm (4 in) and 150 mm (6 in standard); optional to 600 mm (24 in)
Camera 1200 x 1200, or 2400 x 2400
Controls Remote control focus, zoom, pan, extended source size, measurement
Zoom Continuous 1–10X  with pan, calibrated at all zoom settings; 6X optical zoom optional
Software 4Sight™ Focus included
Size 100 mm models:  51.4 cm (20.2 in) long;
150 mm models: 76.2 cm (30 in) long
Reflectivities 1 – 100%
AccuFiz Fizeau Interferometer Handheld Controller

Remote Control

Control the AccuFiz Fizeau interferometer with a touch screen device.

Fizeau Interferometer mounts, optics and accessories

Full range of options and accessories

Designed for flexibility, the AccuFiz family includes a range of laser sources, aperture sizes, mounting components and accessories.

AccuFiz Fizeau Interferometer with Surface Isolation Source for measureing plane-parallel optics

Plane parallel optics

Surface Isolation Source option measures plane-parallel optics without coatings or back-surface treatment.

AccuFiz Fizeau Interferometer in horizontal mounting application

Horizontal Mount

Vibration-free operation does not require an air table.

AccuFiz Fizeau Interferometer in look-down configuration (vertical stand)

Vertical Mount

Stands are available for look-down and look-up operation.

AccuFiz Fizeau Interferometer with 100mm aperture or 150mm aperture

Apertures from 100 mm to 600 mm

Large aperture accessories include kinematic mounting. Use the AccuFiz for stand-alone operation, then return the instrument to the aperture converter to measure larger optics, with no need for re-alignment. 




Introducing 4Sight Focus

The all-new 4Sight Focus analysis software—included with all 4D interferometers and optical profilers—provides blazing fast acquisition, rich visuals, and a wealth of analysis features.

  • Fast acquisition and analysis
  • Clean, configurable interface
  • Simple to learn
  • Deep analysis capabilities
  • Easy data output
  • Smart integration and automation.
4Sight Focus Customizable Interferometer Analysis Software

Fizeaus and optical production

AccuFiz Fizeaus are well suited to optics manufacturing.

Added Technical Resources


Setting the Wedge Factor Tech Note

The Wedge Factor scales results to account for the geometry of an optical test setup. This tech note explains how to set the parameter for measuring wavefront error and surface height in common configurations.

Get In Touch

(520) 294-5600


3280 E Hemisphere Loop, Ste 146
Tucson, AZ 85706


Office Hours (Arizona Time)

Mon: 8am - 5pm
Tue: 8am - 5pm
Wed: 8am - 5pm
Thur: 8am - 5pm
Fri: 8am - 5pm
Sat: Closed
Sun: Closed

Send A Message