
ZEISS PRISMO® ultra
Top end model of ZEISS PRISMO® series with the highest level of accuracy
ZEISS PRISMO® ultra was developed to meet the needs for extremely high accuracy in measurement, such as in research and development for high precision parts and calibration inspection of reference gauges.
Features
Achieving highest level of accuracy
High accuracy at the level of E0, MPE = 0.5+L/500 μm is achieved by mounting an ultra-high resolution scale and utilizing a variety of technologies to minimize the impact of temperature changes on measurement results.
Ultra-high resolution scale made of Zerodur®
The scale with the highest resolution 0.02 μm in ZEISS PRISMO® series is mounted on each axis.
Moreover, Zerodur®, a material with an extremely low thermal expansion coefficient, is used for the scale to minimize the impact of changes in the environmental temperature on the accuracy.
Advanced CAA correction technology for high accuracy
Fine CAA, a method for correcting guide straightness errors by splitting into 64 fine grids, is used.
In addition, by means of “tensor calibration” to determine the deflection of stylus and calibration sphere by probing the same location multiple times while changing the measuring force in calibration, deflection error is removed from measurement results to achieve high-accuracy measurement.

Features common to ZEISS PRISMO® series
High-accuracy
Equipped with active scanning sensor VAST gold for high-accuracy and high-speed scanning measurement as a standard feature
Air bearings support the guides in four directions to prevent torsion in operation
Original floating method for scale retention to avoid the impact of guide expansion and contraction caused by temperature changes
Uses a material that is not easily affected by temperature changes in the bridge part
Measurement system independent from environmental temperature

High efficiency
The speed of scanning measurement has increased by more than two fold due to new scanning parameter settings
"VAST Navigator" for high-accuracy, high-speed scanning measurement(when using VAST gold/XT gold/XTR gold)
"VAST Performance" FlyScan function allows scanning measurement without being concerned with holes or notches (when using VAST gold/XT gold/XTR gold)
A new function "ZEISS VAST Rotary Table Axis (ZVRA)" enables high-speed rotary table axis definition
High speed point measurement with "CALYPSO VAST probing"
Quicker stylus changes with "VAST Performance" QuickChange function

High versatility
"mass technology" enables mounting of a variety of contact and non-contact sensors
Rotary table for high-accuracy, efficient measurement of intricately-shaped workpieces (optional)

High safety
High-speed measurement compatible with safety. Safety devices (laser scanners) integrated with a measuring machine
Preventing unexpected accidents. Enhanced Safety with new covers
Ecological & Economical
Air-supply idling stop "ZEISS AirSaver"
Automatic On/Off Power new function "ZEISS PowerSaver"