NDI Radix Lens
Optical tracking is now being used in environments that require markers to be much more robust to liquid and tissue contamination. They also need to be easily cleaned so tracking can quickly be recovered. The NDI Radix™ Lens has been designed to respond to these demands.
Designed for use with the Polaris® and the Polaris® Spectra Systems, the Radix Lens has a smooth plastic surface that naturally sheds liquid and is easy to wipe clean to recover tracking. The Radix Lens also has the unique characteristic of being inherently resistant to partial occlusions, further enhancing its robust performance characteristics.
Partial Occlusions
The Radix Lens has the unique characteristic of being inherently resistant to partial occlusions. For passive spheres, partial occlusions generally cause a tool to stop tracking.
A partial occlusion covering one side of a Radix Lens will be reflected on the opposite side. Due to this symmetrical occlusion, there is little effect on the marker centroid and therefore tracking loss is less likely.
Off-Angle Viewing
The Radix Lens has an off-angle viewing range of +/- 70° with respect to the Position Sensor.
