Confocal chromatic sensors

confocalDT IFS 2407-0,1

Micro-Epsilon offers a wide range of confocal sensors for measurement tasks in numerous industries. Since the beam path of the confocal sensors is axial, no shadowing effects occur. Therefore, measurements in sleeves and recesses can also be realized. In addition to the standard sensors for high-precision measurement tasks, miniature confocal sensors are available with axial and radial measurement directions (90°). With the 90° version, measurements can be performed inside bores and recesses. The sensors are passive, do not radiate heat onto the measuring object and, depending on their design, can be used in difficult environments, e.g,. in a vacuum.


confocalDT IFS2402 confocal displacement sensors are especially suitable for high precision applications in restricted installation spaces. These miniature, confocal chromatic sensors with only 4 mm outer diameter and stainless steel case are used within narrow cavities or drill holes. A particular advantage is the sensor model with radial beam path enabling the detection of walls and structures.

  • Measuring ranges (mm):
    0.4 | 1.5 | 2.5 | 3.5
  • Linearity max. 0.3µm
  • Resolution max. 0.016µm
  • Unique miniature sensors
  • Measurement in bore holes
  • Axial or radial version
  • Steel or titanium housing
  • 90° model with chamfer for exact alignment

The confocal chromatic confocalDT IFS2403 measurement sensor combines the benefits of two successful confocal design concepts. With an external diameter of 8mm, this sensor is as compact as the confocalDT IFS2402 miniature sensor series. However, due to its larger digital aperture, it can receive significantly more reflected light than the smaller 4mm diameter version. These sensors are also available as radial or axial model.

  • Measuring ranges (mm):
    0.4 | 1.5 | 4 | 10
  • Linearity max. 0.3µm
  • Resolution max. 0.016µm
  • Sensor with hybrid design
  • Housing made from steel
  • Increased offset distance
  • Axial and radial measuring direction

confocalDT IFS2404 displacement sensors are designed for high precision applications in restricted installation space. Based on a special lens technology, these sensors provide high resolution and a small light spot diameter. They are ideally suitable for serial applications.

  • Measuring range 2mm
  • Linearity max. 1 µm
  • Resolution 0.040 µm
  • Distance and one-sided thickness measurements

The confocalDT IFS2404/90-2 90° sensor is designed for precise measurements of displacement, distance, position and thickness. This sensor is equipped with a 90° lens and is therefore ideally suited to installation in restricted spaces. Based on a special lens technology, the confocalDT IFS2404 sensors provide high resolution and a small light spot diameter. They are ideally suitable for applications involving a large number of pieces.

  • Measuring range 2 mm
  • Linearity max. 1 µm
  • Resolution 0.040 µm
  • For applications involving large quantities
  • 90° lens for installation in restricted spaces

confocalDT IFS2405 are confocal displacement sensors for extremely precise applications. These confocal chromatic sensors offer large offset distances and tolerate tiltings. They are used for common measurement tasks and are in addition suitable for one-sided thickness measurement of transparent materials. New: This sensor is now also available with a measuring range of 6 mm which is ideally suitable for measurements from a safe distance to the target.

  • Measuring ranges (mm):
    0.300 | 1 | 3 | 6 | 10 | 28 | 30
  • Linearity max. 0.15 µm
  • Resolution max. 0.01 µm
  • Distance and one-sided thickness-measurements
  • High sensitivity

The confocal IFS2406 series stands out due to its compact design and high precision. As well as distance measurements on reflecting or transparent surfaces, the sensor can also be applied in one-sided thickness measurement of transparent film, plates or layers. Due to its axial and radial measuring directions, the IFS2406-2,5 sensors are suitable for vacuum applications and extremely versatile in terms of its use.

  • Measuring ranges (mm):
    2.5 | 3 | 10
  • Linearity max. 0.75µm
  • Resolution max. 0.024µm
  • Distance and one-sided thickness measurement
  • Small light spot
  • Vacuum compatible sensor

The confocal chromatic confocalDT IFS2407/90-0,3 90° sensor is designed for precision displacement and surface roughness measurements. The sensor is equipped with a 90° lens and is therefore ideally suited to installation in restricted spaces. The lens in the sensor generates a small measurement spot size, which enables a high spatial resolution. The small measurement spot size combined with a large tilt angle enable roughness measurements where maximum precision is required.

  • Measuring range (mm): 0.3
  • Linearity: max. 0.75µm
  • Resolution: max. 10nm
  • Ideal for displacement and roughness measurements
  • Small measurement spot size: 6µm
  • High sensitivity and large tilt angle

The confocalDT IFS2407-0,1 sensor is designed for high precision measurements of distance, roughness and thickness. The high numerical aperture (NA 0.8) enables the thickness measurement of transparent objects with a minimum thickness of 5 µm. Another light-intensive sensor model featuring NA 0.7 is specially designed for high speed processes.

  • Measuring range (mm): 0.1
  • Linearity: max. 0.05 µm
  • Resolution: max. 3 nm
  • Ideal for distance and roughness measurements
  • Light-intensive sensor variant for high speed processes available (NA 0.7)
  • Small measurement spot size: 3 µm
  • High sensitivity and large tilt angle
  • Thickness measurement of transparent objects from 5 µm

The confocal chromatic confocalDT IFS2407-3 sensor has a large measuring range of 3 mm while offering a large offset distance. Due to its large tilt angle of ± 30°, the sensor is particularly suitable for measurements on curved surfaces such as gearwheels or external threads.

  • Measuring range (mm): 3
  • Linearity: max. 0.75 µm
  • Resolution: max. 20 nm
  • Large offset distance approx. 28 mm
  • Max. tilt angle ± 30°
  • Ideal for measurements on curved and reflecting surfaces

Micro-Epsilon Messtechnik
Königbacher Str. 15
94496 Ortenburg, Germany
+49 8542 / 168 - 0
+49 8542 / 168 - 90