Technology
Our patented optical sensing platform redefines what an encoder can do — breaking through the speed-resolution-size triangle that constrains conventional solutions.
How it works
A conventional 1D encoder collapses runout, tilt and eccentricity into an angle error it cannot see — so every unit must be factory-calibrated on a precision fixture. Our 2D absolute code makes that geometry directly measurable, so the ASIC cancels it on-chip, live, on your mount.
The 2D optical code reports the disc's true position in two dimensions every frame — so mounting eccentricity, tilt and runout become measured quantities, not hidden angle error.
On-chip processing fits the mount's geometry from the disc's own signal — no external reference, no golden fixture. In Advanced mode convergence is immediate.
The estimated geometry is removed from the angle output in real time and refreshed continuously as the axis runs — so re-mounting, drift and contamination are tracked live, never replayed from a stored table.
Proven live: 3.1° mount error compensated to 0.010° under >90% contamination — no calibration.
See the live demoA fundamentally new encoding principle that captures absolute position in two dimensions simultaneously — enabling capabilities impossible with conventional 1D approaches.
A general-purpose encoder system-on-chip that can be configured in firmware, much like an image sensor paired with a processor — adaptable to a wide range of sensing scenarios.
Nanometre-class repeatability and sub-micron accuracy across multiple axes, achieved at very high sampling rates for real-time closed-loop control.
Redundancy, error detection and correction are inherent to the 2D code structure, enabling the highest safety integrity levels even under harsh operating conditions.
The sensing method tolerates massive obstruction of the code pattern — above 90% of a single frame obscured transiently, over 60% of the scale permanently damaged — oil, dust, scratches and ageing are absorbed without degradation of output quality.
The same core technology extends from rotary encoders to linear, 3D and 6-DOF applications, using a variety of optical configurations — shadow, reflective, transmissive and more.