Optical CMM machine to measure tight tolerances 


µCMM, the first purely optical CMM machine, is used to measure extremely tight tolerances in high accuracy. Users combine advantages from tactile coordinate measuring technology and optical surface measuring technology and measure the dimension, position, shape and roughness of components with only one sensor. The optical CMM offers high geometric accuracy of several optical 3D measurements in relation to each other, enabling the measurement of small surface details on large components and precisely determining the position of these individual measurements in relation to each other. The spectrum of measurable surfaces includes all common industrial materials and composites such as plastics, PCD, CFRP, ceramics, chrome, silicon. Simple operation is implemented by single-button solutions, automation and ergonomic control elements such as a specially designed controller. Air-bearing axes with linear drive enable wear-free use and highly accurate, fast measurements.

EUni:Tr:ODS,MPE = (0.8 + L/600) μm
EUniZ:St:ODS,MPE = (0.15 + L/50) µm

Optical CMM machine to measure tight tolerances; µCMM

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Technical Specifications | µCMM

Measurement principle non-contact, optical, three-dimensional, based on Focus-Variation incl. Vertical Focus Probing technology
Number of measurement points Single measurement: X: 1720, Y: 1720, X x Y: 2.95 million
Multi measurement: up to 500 million
Positioning volume (X x Y x Z) 310 mm x 310 mm x 310 mm = 29 791 000 mm³
Travel speed of axes Up to 100 mm/s
Coaxial illumination LED coaxial illumination (color), high-power, electronically controllable
System monitoring 9 temperature sensors (accuracy: ± 0.1 K), 3 vibration sensors, internal current and voltage monitoring, incl. long-term logging, retrievable
3D Accuracy 10360-8 The values given are based on ISO 10360-8 and VDI 2617 EUni:Tr:ODS,MPE = (0.8 + L/600) μm (L in mm)Axis accuracy based on ISO 10360-8.
EUniZ:St:ODS,MPE = (0.15 + L/50) μm (L in mm)Valid for single measurements, height step measurements
Objective   3000WD8 1900WD30 1500WD23 1500WD70 800WD17 800WD37 400WD19 150WD11
Working distance mm 8.8 30 23.5 69.4 17.5 37 19 11
Lateral measurement range (X,Y)
(X x Y)

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Intuitive usability, designed for multiple users

The spectrum of measurable surfaces is largely material-independent and includes all materials and composites commonly used in the industry, from matte to polished or mirrored components.


Dense non-contact and material-independent measurement

Alicona measurement systems offer the functionalities of a surface- as well as a coordinate measurement system combined into one system. As a result, your quality assurance becomes more cost effective, is easier to execute and delivers results more efficiently.


Wear-free and efficient use

All components, including the moving axes, operate contact-free. Air-bearing linear drive axes enable wear-free operation and highprecision, fast measurement. This makes μCMM ideal for permanent use in production.

New Software MetMax

 From "How do I measure?” to “What do I measure?”

Focus-Variation Technology

Alicona measurement systems are based on the technology of Focus-Variation and combine the functionalities of a surface roughness measurement device and a form measurement system. Each Alicona measurement instrument is a surface measurement device, surface roughness measurement system, 3D measurement system for geometrical tolerancing and micro coordinate measurement system. The Focus-Variation technology combines the small depth of focus of an optical system with vertical scanning to provide topographical and color information from the variation of focus. The main component of the system is a precision optics containing various lens systems that can be equipped with different objectives, allowing measurements with different resolution.

More information about the optical CMM:


Opening new doors for production measurement technology

Get to know more about the technical specifications and metrological features of the most accurate purely optical micro-coordinate measuring system µCMM. 
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Vertical Focus Probing: Measure flanks with more than 90°

A new function of the optical coordinate measuring system µCMM enables the optical measurement of vertical surfaces with more than 90°.


10 questions on the 1st optical coordinate measuring machine

What is so special about this CMM machine? How accurate ist CMM? How easy is CMM to use? These and more questions are answered here.