In a fresh approach to improving lidar for vehicles and data networks, a startup called Omnitron is developing robust micro-electro-mechanical systems (MEMS) micromirror chips designed to survive the bumps, heat, and shakes of everyday use, tells IEEE Spectrum. Their claimed edge: much higher force per unit area in the actuators that steer laser beams, which means better control and resilience in harsh conditions.
Traditional automotive lidar systems suffer from alignment issues. Vibration, temperature swings, and mechanical stress can easily misalign mirrors or damage scanning subsystems, disrupting detection accuracy. Omnitron’s design embeds micromirrors and actuators together on a silicon wafer and uses deeply etched comb-like plates in trenches. By driving those plates electrostatically, they angle the mirrors with precision, even under stress.
A key technical achievement is the aspect ratio of those trenches (depth versus width). Omnitron reports pushing that to around 100:1, which enhances the electrostatic force achievable and grants more robust movement compared to more typical ratios of 20:1 or 30:1. The higher force lets the system correct or resist misalignment caused by shock or thermal expansion.
Beyond automotive use, Omnitron sees applications in data centers. They propose using their micromirror arrays in optical switching to cut energy use in signal routing. Because current data-center architectures repeatedly convert signals between electrical and optical domains (which wastes power), more efficient mirror arrays that keep signals in the optical domain longer could yield big savings.
Challenges remain. The technology must endure thousands of hours under real driving and environmental conditions, including vibration, thermal cycling, and exposure to weather. Safety certification and scaling production will take time.
If it succeeds, Omnitron’s micromirror technology could make lidar more reliable and less costly, helping more vehicles and systems adopt precise sensing. And the energy-saving promise in data centers could add another layer to its impact.