Model 106irVIS Dual Wavelength Interferometer.

Model 106irVIS Dual Wavelength 1064 nM / 632.8 nM Interferometer

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The Model 106irVIS is our new unique Phase-shifting Fizeau Interferometer that operates in two modes: Infrared or Visible switch selectable. The instrument features a fused silica collimator and reference surface flat to 1/20 wave (measured at 632.8 nM). Two separate lasers are employed – a Nd:YAG laser operating at 1064 nM and a Helium-Neon Laser operating at 632.8 nm. Both sources are dithered to produce speckle-free live images on the computer monitor. A single Camera provides 768 x 494 resolution at both wavelengths.

The Model 106irVIS utilizes piezo-electric phase shifters and Durango Universal Interferometry Software to allow the operator to achieve highly accurate and repeatable measurements at both infrared and visible wavelengths. In typical usage of a Dual Wavelength Interferometer, the operator can align his optical system and perform any necessary tip/tilt operations with the interferometer in VISIBLE MODE—greatly simplifying the procedure.

Featuring Zoom optics, Illumination control, high resolution CCD camera and piezo-electric phase shifter, the Model 106irVIS is equipped with Durango Universal Interferometry Software, 3 GHz Computer, and 19-inch TFT flat screen monitor.

FEATURE BENEFIT

Dual Wavelength 1064 nM / 632.8 nM Alignment of two wavelength optical paths is coaxial

4-inch aperture Ideal for test pieces from 1/2 to 4 inch diameter

Fused silica reference surface 1/32 wave at 1064 nM 1/20 wave at 632.8 nM

ZOOM Lens 4x for both wavelengths Readily accommodates test pieces from 1/2 inch to 4 inches diameter

Rugged construction High mechanical stability

A Turnkey System User Friendly and ready to go

Two spot alignment For quick setup on each new part tested. Setup of test piece at either wavelength is aligned at both wavelengths

Dithered Laser sources at 1064 nM and 632.8 nM Sharp Speckle-free interferogram at both wavelengths

Wavelength, Zoom, Focus, Iris, Intensity and
Mode Select [ALIGN] [VIEW] Remote control for quick adjustments

Piezo-electric Phase Shifter The ultimate in accuracy

CCD Camera 768(H) x 494(V) pixels High resolution

Durango Universal Interferometry Software* Windows environment
PV and rms in users choice of units
High level of repeatability
Excellent reproducibility
Large choice of graphic displays
Dynamic Sections
3-D OPD Plot
Reference Subtraction
MTF and PSF graphics and plots
Zernike Polynomials available for all measurements
Seidel Coefficients available

3 GHz computer For high speed data reduction and phase shift control

19-inch TFT Flat Screen Monitor For easy viewing

Live interferogram on computer monitor For quick inspection with no extra video monitor

Reference surface and integral part of the interferometer and always aligned to collimated beam. No need to purchase a separate Transmission Fat.
No need to adjust Tip/Tilt of a Transmission Flat

Tip/Tilt Fixture and Bayonet mount for attachment of Transmission Spheres for either wavelength. (Transmission Spheres not provided) Interferometer can accommodate m either Plano of Spherical test Pieces at either wavelength

High Accuracy 1/32 wave at 1064 nM,
1/20 wave at 632.8 nM

Repeatability 1/300 wave PV , 1/1000 wave rms

Reproducibility Excellent

Data acquisition time 30 milliseconds (typical) Fast

Data reduction time ~3 seconds (typical) Fast

Dimensions (L x W x H) 20 x 18 x 10 (inches) Small footprint

Weight 75 pounds (34 kg) approximately Solidly built for high stability

Manual Illustrated Operator's Manual

Warranty Standard one-year limited warranty against defective components or workmanship

For Further Information, Prices, Delivery, call Gordon Graham today at
(818) 700-1263 or send an e-mail to the address below.

GRAHAM OPTICAL SYSTEMS, 9530 Topanga Canyon Blvd., Chatsworth, CA 91311
Phone (818) 700-1263 FAX (818) 700-1627 E-mail: techinfo@grahamoptical.com

This page last updated July 9, 2008