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Polaris Lyra®
High-Performance Optical Navigation for Confined Spaces.
Accurate. Compact. Responsive.
Exceptional Measurement Accuracy and Reliability in a Compact Size
NDI’s compact optical tracker, the Polaris Lyra, is equipped with a small footprint, short stand-off, and a wide measurement volume, making it the ideal solution for applications focused on an individual body segment. Low data latency, a high measurement rate, and high accuracy add to the trusted reliability offered by the Polaris® suite of products.
Exceptional Accuracy and Performance
The Polaris Lyra tracks 6D tool positions with sub-millimetre measurement accuracy and repeatability. OEM surgical tool movements are precisely tracked and localized, with a measurement rate up to 125 Hz.
Optimized Measurement Volume
The measurement volume is optimized for targeted tool tracking within localized areas. Polaris Lyra tool geometries are correspondingly reduced, which allows for lighter and more ergonomic OEM instruments that support very precise movements.
Compact Hardware Design
The Polaris Lyra features a compact form factor and weighs less than 1.0 kg. The short stand-off allows the camera to be mounted close to the application area. Its portable design is enhanced with a pre-calibrated measurement volume and quick system start-up.
Technical Specifications:
| PERFORMANCE | |
|---|---|
| Volumetric Accuracy RMS1,2 | 0.20 mm Pyramid Volume 0.25 mm Extended Pyramid Volume |
| 95% Confidence Interval | 0.40 mm Pyramid Volume 0.50 mm Extended Pyramid Volume |
| Maximum Measurement Rate | Up to 125 Hz |
| Average Latency | 125 Hz Config: <5 ms (typical) 60 Hz Config: <8 ms (typical) |
| Measurement Volumes | Pyramid Volume Extended Pyramid Volume |
| HARDWARE | |
| Dimensions (L x W x H) | 276 x 78 x 70 mm |
| Weight | 0.8 kg +/- 0.05 kg |
| Mounting | ¼” thread tripod mount or secured via three M3 x 0.5 mm pitch x 9.0 mm deep threaded holes, rear mount |
| TOOL TRACKING | |
| Tool Types | Passive, Active Wireless, Active Wired |
| Maximum Number of Tools | Load up to 25 tools total – a mix of active wired, active wireless, and passive tools. Simultaneously track up to 6 passive tools, 6 active wireless tools, and 3 active wired tools. |
| Maximum Number of Markers per Tool | 6 single-face/20 multi-face |
| DATA COMMUNICATION | |
| Data Communication | Gigabit Ethernet |
| Communication Protocol | TCP, UDP |
| Data/Power Interface | Ethernet, RJ45 PoE+ (IEEE802.3 at Type 2) |
| Synchronization Interface | General Purpose Input/Output (GPIO) Hardware Port |
1 Based on a single marker stepped through more than 900 positions throughout the measurement volume using the mean of 30 samples at each position at 20°C
2 Accuracy stated based on overall volume
Polaris Lyra Measurement Volume
Contact our team to learn more about NDI’s Polaris Lyra.