Optical sensor for capturing freeform surfaces

Chromatic white light sensors enable the non-contact capture of workpiece topography. These are generally used when sensitive, reflective or low-contrast surfaces make it difficult to use other optical sensors.

  • Non-contact measurement of sensitive, soft, reflective or low-contrast surfaces
  • Suitable for a wide variety of materials
  • Available in three sizes


ZEISS DotScan: Optical sensor for capturing freeform surfaces

ZEISS DotScan is an outstanding option for capturing freeform surfaces and even for minute structures. Chromatic white light sensors – and hence also the ZEISS DotScan – are the method of choice, especially when styli or camera sensors reach their limits on sensitive, soft, reflective or low-contrast surfaces.

By using ZEISS DotScan, strongly reflective surfaces, such as metal components in knee implants, can be scanned without any need to inject them with a contrast medium. This also makes it possible to distinguish transparent lacquered surfaces from other underlying metallic layers.

ZEISS DotScan: Optical sensor for capturing freeform surfaces

Flexible use

ZEISS DotScan is available in three sizes for three different measuring ranges: 10, 3 and 1 mm. The sensor can be exchanged fully automatically for other contact or optical sensors within a single CNC run. With increments of 2.5 degrees, the articulated axis can align the ZEISS DotScan so that it is perpendicular to the surface of the component being scanned.

And since the maximum measuring angle of the ZEISS DotScan 1 mm is plus/minus 30 degrees, even more strongly curved components can be scanned. Thanks to the sensor's mode of operation, a wide variety of materials can be scanned from all sides without difficulty. In conjunction with a rotary table, even measuring jobs with 4-axis scanning can be performed.

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