SCM – Centering Measuring Device for Spherical Lenses

Precise centering measurement for spheres and optical systems

The SCM (Spherical Centering Measuring Device) from HOFBAUER Optics was specifically designed for high-precision measurement of spherical lens surfaces. By combining automatic focusing, intelligent software, and flexible module adaptation, the SCM is the ideal solution for efficient quality control in production and development.

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Absolute World-First with V-SPOT Technology

Precisely capture real and virtual confocal points

The SCM uses V-SPOT technology for the exact determination of real and virtual measuring points. This measurement method ensures reliable results with maximum repeatability – even with complex optical systems.

Multi SPOT for parallel surface measurement

Increased efficiency with system lenses and assemblies

Multiple surfaces can be captured simultaneously, significantly reducing testing and blocking times. Ideal for mass production and complex optical systems with multiple spherical lenses.

High Accuracy in Manufacturing Environments

Robust measurement technology for precise results in the production process

The SCM delivers reproducible results even under real production conditions. Its compact design and process-safe interfaces make it easy to integrate into existing production lines.

Intuitive Operation with ELWISOFT Touch Software

Simply measurable – quickly documented

The touch-based ELWISOFT software provides all the functions for automated probing, centering error detection, and evaluation. Its simple operation reduces training effort and ensures fast measurement results.

Software Modules

  • MS (Multi Surface) – for spherical lenses & optical systems with up to 20 surfaces
  • Optional: Inline measurement for process monitoring

Technical Data SCM

Technical Details(From – To)
Sample diameter 10 mm to 100 mm
Sample weight 10 g to 15 kg
Resolution / Reproducibility up to 0.1"
Measurement accuracy (centering) < 3 µm
Angle run tolerance < 5"
Software ELWISOFT touch software
Interface USB 3.0
Scope of delivery ELWIMAT-AKF sensor, control cable, ELWISOFT, touch PC or controller

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Why SCM?

  • Efficiency: Parallel measurement of multiple surfaces
  • Precision: V-SPOT technology for accurate centering values
  • User-friendly: Touch software with simple operation
  • Integration: Ideal for production environments

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For personalized consultation or further information on the SCM, we are always available. Feel free to contact us through our contact form or call us.

ELWIMAT AKF classic

ELWIMAT®-Wedge

Wedge angle measuring device for highly precise optical measurement technology

The ELWIMAT®-Wedge wedge angle measuring device from HOFBAUER Optik is the ideal solution for precise wedge angle measurement and parallelism testing in optical production metrology. Thanks to powerful ELWISOFT software, high-resolution subpixel evaluation, and a flexible system design, the measuring system offers the highest accuracy and process reliability – both in the laboratory and in serial production.

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Maximum precision in reflection & transmission

→ Safe measurement from 0.0001° wedge angle – even with extremely small tolerances.

Thanks to two highly specialized measuring methods (reflection with double cross image and transmission), both large and extremely small wedge angles are reliably detected and documented. The subpixel evaluation ensures the highest resolution with reproducible accuracy.

ELWIMAT AKF classic

Powerful ELWISOFT software

→ Intelligent, automated evaluation with documentation and mapping.

ELWISOFT offers various modules for reflection and transmission measurement, automatic wedge angle evaluation, mapping for linearization, and even calibration routines. This enables complete quality assurance directly in the measurement process.

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Modularity & flexibility in system design

→ Scalable for every application – from laboratory to serial production.

Depending on the task, the system can be expanded with various accessories such as angle converters, certified wedges, touch modules, or rotary tables. This allows the equipment to be perfectly adapted to growing or changing requirements.

Industry 4.0 ready – Process integration included

→ Digital networking, automated testing processes, and complete traceability.

With USB 3.0 connection, automated routines, and documentable measurement series, the system meets all requirements for a modern, connected manufacturing environment. Ideal for production lines that demand the highest efficiency and transparency. Particularly suitable for:

  • Wedge angle measurement of optical components (0.0001° to 6°)
  • Radius measurement of cylindrical lenses and prisms
  • Alignment of opto-mechanical assemblies
  • Inline process monitoring and quality assurance
  • Calibration testing of autocollimators

Technical data – ELWIMAT®-Wedge

Technical DataDetails (From – To)
Focal length / Diameter 50/40 mm to 300/65 mm
Number of measuring axes 2
Measurement range 2w (in degrees) 0.6° to 4.0°
Resolution (Pixel / recommended) Pixel resolution: 1.2″ to 7.1″
Recommended resolution: 0.01″ to 0.1″
Reproducibility R (wsec) 0.06″ to 0.4″
Accuracy / Linearity < 1 % of the measurement value + 2R
With mapping < 0.05 % of the measurement value + 2R
LED wavelength (optional) 405 nm to 905 nm
Clear aperture 9.6 mm to 48 mm
Min. reflector diameter (R > 60 %) 1 mm to 6 mm
Min. reflector diameter (at reflectivity 4 %) 4 mm to 24 mm
Weight AK sensor 0.7 kg to 2.5 kg
Dimensions AK sensor Ø 40 f8: 107 x 62 x 110 mm³
Ø 65 f8: 107 x 62 x 110 mm³
Interfaces USB 3.0
Compatible software modules Wedge angle-R (reflection), Wedge angle-T (transmission), Mapping, Calibration, Centering
Scope of delivery Autocollimation sensor, sensor cable, rugged touch module or mini-PC, mapping file, camera driver, optional: reference wedge, rotary table, tilt table, vertical stand with column, angle converter

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Why ELWIMAT®-Wedge?

  • Extremely precise wedge angle measurement from 0.0001°
  • Reflection & transmission measurement in one device
  • Modular & scalable – grows with your requirements
  • Industry 4.0 capable with intelligent ELWISOFT software

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For personal advice or more information about the ELWIMAT®-Wedge, we are always available to assist you. Simply contact us via our contact form or give us a call.

ELWIMAT® VarioFoc

Fully Electronic Autocollimator with Variable Object Distance

The ELWIMAT® VarioFoc is a compact, highly precise electronic autocollimator with an integrated focus function for setting variable object distances. It is ideal for applications with changing test piece distances, such as in alignment, validation, or calibration of optical systems. Whether in series testing or the laboratory – the VarioFoc offers maximum flexibility while maintaining excellent accuracy.

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Flexible Object Distance through Motorized Focus Adjustment

The integrated linear slide allows the focus point to be adjusted electronically – from infinity to just a few centimeters. This enables precise simulations of both real and virtual object positions. It allows for accurate testing of camera modules, lenses, LiDAR sensors, or cylindrical optics – even in automated inline inspection.

Highest Accuracy Even at Large Distances

Despite its high flexibility, the system provides subpixel-accurate angle measurement with resolutions up to 1.8″ and a slide positioning accuracy of 2 µm. Even at large virtual or real distances, linearity remains < 1% (or better with mapping file).

Digital Control & Reticle Variety

The ELWISOFT software offers a touch-optimized interface, subpixel-accurate analysis, focus control, and automatic logging. The following reticles are available for adapting to various applications: Crosshairs (10/30 µm), Pinholes (20–1000 µm), MTF reticle with inclined edge, custom shapes on request. Thanks to USB 3.0, serial interface, and JSON protocol, the VarioFoc is fully Industry 4.0 compatible.

Applications

  • Calibration and focus testing of cameras and LiDAR sensors
  • Alignment of optical assemblies at variable distances
  • Measurement of radii, thicknesses, and wedge angles of lenses
  • Centering of aspheres, cylindrical lenses, and lens systems
  • MTF measurement with inclined edge (according to standards)
  • Automated validation of opto-mechanical components

Technical Specifications – ELWIMAT® VarioFoc (Standard Versions)

Technical SpecificationsDetails (From – To)
Focal Length / Diameter 30/40 mm – 200/65 mm
Measurement Axes 3 axes: Angle φx, Angle φy, Distance z (z')
Measurement Range (Angle, 2w) 0.9° – 5.1°
Pixel Resolution (Angle) 1.8″ – 11.8″
Reproducibility (Angle) 0.09″ – 0.7″
Focus Range z 13 mm or ±6.5 mm (symmetrical)
Slide Position Accuracy 2 µm
Min. Object Distance z' @ ±6.5 mm ±138 mm – ±6,200 mm
Min. Object Distance z' @ +13 mm –69 mm – –3,080 mm (virtual)
Min. Object Distance z' @ –13 mm +69 mm – +3,080 mm (real)
Accuracy / Linearity < 1% of the measurement value + 2R (higher accuracy with mapping file upon request)
Clear Aperture 7.3 mm – 48 mm
LED Wavelength 405 nm – 905 nm
Min. Reflector Ø @ R > 60 % 0.7 mm – 4 mm
Min. Reflector Ø @ R = 4 % 2.8 mm – 15 mm
Sensor Weight 1.2 kg – 2.8 kg
Sensor Dimensions Ø 40 f8 (154 × 62 × 115 mm³) – Ø 65 f8
Interfaces USB 3.0, Serial
Reticle Options Crosshair (10 / 30 µm), Pinholes (20–1000 µm), MTF Edge, Custom Shapes upon Request
Software ELWISOFT – Subpixel-accurate analysis, mapping, touch-optimized
Industry 4.0 Support JSON protocol, wireless communication available
Scope of Delivery Autocollimation Sensor, Controller, Connection Cables, ELWISOFT Software

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Why ELWIMAT® VarioFoc?

  • Precise focus & angle measurement even at large distances
  • Variable object distances – adjustable both real and virtual
  • Compact design for integration into test stands and systems
  • Intuitive operation with touch-optimized software
  • Industry 4.0 capable with modern interfaces & JSON protocol

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For personalized advice or more information about the ELWIMAT® VarioFoc, we are always available. Simply contact us via our contact form or call us.

ELWIMAT AKF classic

ELWIMAT®-VFS 6000

Volumetric 6-DoF measurement system for mechanical engineering, calibration & automation

The ELWIMAT®-VFS 6000 is a highly precise optical measurement system for simultaneously capturing all 6 degrees of freedom (6 DoF) of a spatial axis: linear movement, straightness, tilt, yaw, and roll angles. With absolute position determination, a wireless reflector, and an integrated software solution, the ELWIMAT®-VFS 6000 is ideal for demanding calibration and adjustment applications on coordinate measuring machines, machine tools, and precision axes – even over long distances.

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Simultaneous 6-DoF measurement in one setup

One sensor, one reflector – and the entire spatial movement in view: position, straightness, tilt, and roll angles are captured in one measurement. This significantly reduces measurement effort and lowers calibration and downtime costs.

Highest precision even over long distances

With a resolution of up to 0.001 µm in linear movement and < 0.3 arc seconds/m on rotational axes, the ELWIMAT® 6000 meets the highest accuracy demands – even over distances of up to 80 m.

Compact, wireless, and mobile

Thanks to battery operation, wireless reflector, and compact sensor format, the system is also ideal for mobile use – even in vacuum environments or vertical positions.

Software control & Industry 4.0 integration

The evaluation is done via a robust 11" touch module (IP65) with an intuitive interface. Data is displayed live graphically, with logging functionality and interfaces such as USB 3.0, RS232, and JSON for integration into custom systems.

Applications

  • Calibration and compensation of coordinate measuring machines
  • Adjustment and testing of linear axes and precision guides
  • 6-DoF capture in machine tools and measuring robots
  • Inline monitoring & volumetric calibration according to ISO 230
  • High-precision alignment in vacuum systems
  • Service operations with minimal downtime

Technical specifications – ELWIMAT®-VFS 6000 (Standard versions)

Technical DataDetails (from – to)
Captured degrees of freedom 6 DoF: Position, tilt/yaw angles, roll angle, straightness
Linear movement – resolution 10 µm – 0.001 µm (depending on model)
Linear movement – reproducibility < 0.5 µm/m – 20 µm/m
Straightness – resolution 0.1 – 0.03 µm
Straightness – reproducibility 0.4 µm + (0.5–5) µm/m × measurement distance (M)
Rotational resolution (tilt/yaw) 0.1″ – 0.025″
Roll angle – resolution 0.1″ – 0.2″ (special reflector < 5″/m possible)
Rotational range ± 0.5° – n×360°, depending on axis type
Measurement distance (position) 0.2 m – 80 m
Measurement range (straightness) ± 10 mm – ± 1000 mm
Sensor weight 0.7 kg – 3.0 kg
Sensor dimensions Ø 40 f8; 107 × 62 × 110 mm³
Interfaces USB 3.0, RS232, JSON, WLAN (optional)
Reflector types R1, R2, R3, special reflectors
Software ELWISOFT including touch interface, ISO 230 evaluation, protocol export
Scope of delivery Sensor, reflector, power supply, sensor cable, touch module, remote control, USB cable

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Why choose ELWIMAT®-VFS 6000?

  • 6 DoF in one measurement system – reduces effort and downtime
  • Precise and fast – capture at the speed of light
  • Mobile – wireless, compact, battery-operated
  • Compliant with standards – ISO 230 and VDI evaluation included
  • Fully integrated – Industry 4.0 interfaces and logging

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For personal advice or further information about the ELWIMAT®-VFS 6000, we are available anytime. Simply contact us via our contact form or call us.

ELWIMAT-VFS 4000

ELWIMAT AKF classic

ELWIMAT®-VFS 4000

4D measurement system for precise alignment of beam axes and components

The ELWIMAT®-VFS 4000 is based on the innovative vignetting field diaphragm method and provides precise 4D measurement (2× angle, 2× position) in a compact system. It is ideally suited for alignment, calibration, and monitoring of optical components and systems—especially in laser and instrumentation technology.

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Simultaneous measurement of angle & position

With the ELWIMAT®-VFS 4000, angles (in two axes) in the arcsecond range and position deviations in the micrometer range can be simultaneously measured—using just one measurement process. This saves time, increases precision, and minimizes misalignments in optical systems.

Maximum accuracy with high flexibility

Thanks to its opto-electronic design, the system is freely positionable and offers high reproducibility even at long working distances. Tolerance fields can be displayed live in the camera image—complete with color change when limits are exceeded.

Intelligent software and digital integration

The ELWISOFT-Base software allows intuitive operation under Windows or Linux, real-time display of measurement results, and control via USB 3.0 or TCP/IP. Simple integration into existing systems or Industry 4.0 architectures is possible via JSON protocol.

Applications

  • Alignment and adjustment of optical beam axes
  • Adjustment of mirrors, beam splitters, lenses, prisms
  • Construction and pre-setting of laser systems
  • Assembly and alignment of opto-mechanical assemblies
  • Position and angle monitoring in laser technology
  • Adjustment of lenses and microscope components

Technical Data – ELWIMAT®-VFS 4000 (Standard versions)

Technical DataDetails (from – to)
Measurement axes 4 DoF: 2× angle φx/φy + 2× position x/y
Angle measurement range (2w) 1.0° – 11°
Angle resolution (recommended) 0.01″ – 0.1″
Angle reproducibility 0.03″ – 0.12″
Position measurement range (X/Y) ±20 mm – ±100 mm/m
Position resolution (recommended) 0.1 µm
Position reproducibility 0.2 µm – 0.4 µm (depending on distance)
Clear opening 7.3 mm – 20 mm
Minimum mirror diameter 27.5 mm – 40 mm
Minimum reflector diameter 8 mm – 21 mm
Sensor weight 0.7 kg – 1.0 kg
Sensor dimensions Ø 40 f8; 107 × 62 × 110 mm³
Interfaces USB 3.0, TCP-IP / JSON
Accuracy / Linearity < 1 % of the measurement value + 2R / < 0.1 % with mapping file (depending on version)
Software ELWISOFT-Base (Windows/Linux), with mapping, tolerance display, trigger mode
Scope of delivery (Standard) ELWIMAT sensor, sensor cable, ELWISOFT-Base software
Scope of delivery (Touch version) Sensor, cable, rugged Touch module with mapping file

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Why ELWIMAT®-VFS 4000?

  • 4D precision: Simultaneous measurement of angle and position
  • Compactness & mobility: Usable in the lab and in production
  • Intuitive operation: Clearly structured software with live display
  • Flexible use: No restrictions on measurement range
  • Digitally networkable: JSON interface for Industry 4.0

Request or Order Now

For personal advice or more information on the ELWIMAT®-VFS 4000, we are always available to assist you. Simply contact us via our contact form or give us a call.

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