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Prisms Unlimited Assets

Certification/Calibration of your interferometer. NIST traceable.

Replacement lasers for a variety of Zygo® Interferometers

Mark-I, Mark-II, Mark-III, Mark-IV, Mark-IV XP, Mark GPI XPS and Verifire/GPI interferometers.

More details in "Spare Parts"

New Laser for ADE-Phase Shift Tech MiniFIZ - $4,950
Direct replacement laser for the MiniFIZ.

Not OEM, not frequency stabilized.
Has mounting rings for easy installation.
Must return your old, defective laser.

Radius of Curvature Standard
Silicon Carbide ball that can be used as Radius of Curvature (ROC) standard.
1-inch ball = 1/2" Radius. Grade 5 ball = diameter and roundness are within 5 micro-inches (125 nm) of nominal. $995

NEW….. CaliBall™
If you check spherical surfaces using an interferometer you need a CaliBall™ in your shop.  This calibration ball is used to determine the residual error in interferometer test optics. Email for detailed technical papers and procedure. CaliBall2 is $1,450 - includes fixture to hold CaliBall in a Zygo mount. CaliBall is $995

Point Diffraction Interferometer (PDI) plates - manufactured in Germany - More Information in the "Interferometers" section.


Many TF's, RF's and TS's available. Check out the complete listing under "Optical Accessories"

Jeff Bosby
Bosby & Associates
682 Shockley Road
Auburn, CA 95603-3641
530-878-8598 Voice



Page Last Updated: 6/8/2023 9:25:31 AM

Questions, problem or suggestion? Contact Us  To place an order, call: 530-878-8598