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NDI Radix Lens

A wipeable retro-reflective lens for use with optical measurement applications.

Smooth Plastic Surface for Harsh Environments

The Radix™ Lens is a retro-reflective passive lens that can be integrated into OEM surgical instruments for use with the Polaris® family of optical navigation solutions to pinpoint instrument positions.

The Radix Lens features a smooth plastic surface that makes it less susceptible to liquid and particulate contamination and less prone to accuracy degradation.

Radix Lens
Radix Lens 3

Radix Lens Features:

  • Facilitates accurate optical tracking in harsh environments
  • Solid contamination is easy to identify and remove, resulting in better tracking recovery
  • Partial occlusions have minimal impact on tracking performance
  • Minimizes interruption to surgical workflow
  • Low profile marker eliminates marker-to-marker interference on planar, multi-marker tools

Accurate Tracking



Minimal Disruption


Resistant to Partial Occlusions

As a benefit of its form factor, the Radix Lens is inherently resistant to partial occlusions. An occlusion that partially covers one side of the lens will be reflected on the opposite side. Due to the resulting symmetrical occlusion, the marker centroid is still tracked accurately. The Radix Lens has a viewing angle of ±60°, which ensures it is readily “seen” (detected) by the Polaris® optical tracker within the measurement volume.

Radix Occlusion

Reduced Marker Interference

The Radix Lens alleviates possible marker-to-marker interference on OEM surgical instruments by way of its low marker profile. Radix Lenses and passive marker spheres can be used on separate tools during the same procedure. For example, Radix Lenses could be attached to a patient reference array or the base of an OEM surgical robotic to track its relative position, while passive marker spheres are attached to a handheld OEM surgical instrument.*

Experience Reliable Surgical Navigation with the Radix Lens: Download Our Brochure Today

Discover the superior accuracy and performance of the Radix Lens for surgical navigation. Download our brochure today to learn how this retro-reflective lens can help minimize interruptions to surgical workflow, even in harsh environments. The Radix Lens offers precise tracking with a smooth, contamination-resistant surface and low-profile marker while also being inherently resistant to partial occlusions for reliable results.

Radix Datasheet Download

Legal Disclaimer
NDI tracking and measurement products are general metrology components that can be integrated into customer products, research experiments, and/or as components of medical devices that require precision measurement and tracking. While NDI components and technology can be integrated into original equipment manufacturer (OEM) medical devices, they are not specifically intended for a given application and, as such, have not been developed or manufactured in accordance with medical device standards. It remains the responsibility of the OEM customer or end-user to determine and test the suitability of NDI components and technology for their intended use, including performing any required ethics approval, verification, and validation required to demonstrate suitability and compliance. System-level testing, certification, and validation are the responsibility of the original equipment manufacturer or the applicable end-user and should be completed prior to the use of NDI products or technologies in any application.

*The Radix Lens is not a medical device; its suitability, testing, certification, and validation in a particular application must be determined and completed by the OEM medical device customer or end user prior to use.