AccuFiz Fizeau Infrared Interferometers

Compact, high value Fizeaus for SWIR and LWIR measurements.

High performance, quality and value, for accurate, repeatable measurement of surface shape and transmitted wavefront quality. 

IR Laser Interferometer - AccuFiz SWIR Fizeau Infrared  Interferometer

Measure IR optics and systems at 1.55—10.6 micron wavelengths

AccuFiz Infrared Fizeau Interferometers

AccuFiz infrared interferometers provide accurate measurement of polished or rough-ground optics and metal surfaces. AccuFiz infrared laser interferometers are ideal for measuring concave, convex and afocal IR components, as well as infrared telescopes and lens systems. Their ability to capture high slopes makes it possible to measure aspherical optics without the need for a holographic element.

AccuFiz IR interferometers are loaded with standard features, such as a touch-screen remote, 2X discrete zoom and fully motorized controls. Optional Dynamic mode lets you measure despite vibration and air turbulence, without an air table.

dynamic Fizeau interferometer uses the polarization of light to measure all data simultaneously

Vibration insensitive

Optional Dynamic Interferometry for measurement on the shop floor or in a clean room, despite vibration, without isolation.

Fizeau Interferometer mounts and optics

Full range of options and accessories

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

Fizeau laser interferometer - alignment

Simplified Alignment

Speed setup with the Visible alignment beam and dual spot camera based alignment aid

IR Laser Interferometer - AccuFiz SWIR Fizeau Infrared  Interferometer

AccuFiz SWIR

Operating at
1.55 µm

IR Laser Interferometer - AccuFiz LWIR Fizeau Infrared  Interferometer

AccuFiz LWIR

Operating at
10.6 μm

Need to know more? 

Get a quote, or advice on your application. Or download the Fact Sheet which explains much of how a Fizeau can work for you.

What to expect

AccuFiz Fizeau infrared interferometers are available from 1.55 μm through 10.6 μm.

AccuFiz Model Stabilized Laser Wavelength Camera Extended Source Optical Zoom
SWIR Yes 1.5 µm 512 x 512, 12-bit Yes No
LWIR Yes 10.6 µm 512 x 512, 12-bit Yes Yes, 2X

4D AccuFiz IR interferometers are sold as turnkey systems:

  1. Interferometer
  2. Advanced software for taking measurements and analyzing the results
  3. Complete computer system
  4. Connecting cables and power supplies.

Accessories can include:

  • Optical mounts
  • Reference optics (flat or spheres)
  • Linear table guides.

4Sight™ wavefront analysis software, included with every AccuFiz, features excellent ease of use and a short learning curve. 2D and 3D displays, filtering, thresholds and masking tools make it easy to highlight surface shape and texture. Zernike, Seidel, geometric and diffraction analyses are easy to perform. Comprehensive data sharing capabilities let you read, write, save and print data in many common file formats for comparison between instruments. 


analysis software

Fizeaus and optical production

AccuFiz Fizeaus are well suited to optics manufacturing.

  • Qualify shape and mid-spatial frequencies
  • Measure flats, spheres, cubes and mirrors
  • Wavefront transmission quality measurements
  • Fast and precise
  • Use in Aerospace, Semiconductor and Optics industries

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

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