Basic information about the device
If the axis calibration fails, please check the height alignment of the model in the
measuring field.
The optical scanner with the designation "Activity 880" is used for the three-dimensional measuring of
jaw models, in orthodontic and prosthetic applications.
The most important components of the scanner are the 3D sensor and the positioning unit with
object holder.
The 3D sensor consists of a camera and a projector. The projector throws a light pattern onto the
object to be measured at an oblique angle of incidence; the object is simultaneously monitored with
the camera.
Since the camera cannot capture the entire object if the object is complex in shape, as in the case of a
jaw model, the object is mapped with a series of individual scans from various perspectives.
The software then combines the individual scans to create a complete data set.
The positioning unit positions the object to be measured in the required perspectives opposite the 3D
sensor.
It contains motorized axes for this, which can rotate and tilt the model on the base relative to the 3D
sensor.
The entire scanning procedure is extensively automated so that you only have to carry out the essential
operating steps.
11. Basic information about the device
11.1 Functioning of the Activity 885
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