Quantum Devices, Inc.

Quantum Devices designs and manufactures high-performance optical encoders and precision silicon photodiodes in the USA for advanced automation, robotics, and motion control applications. Our products are trusted in robotics, servo motors, AGVs/AMRs, medical devices, industrial automation systems, and other precision motion platforms where accuracy, reliability, and long-term performance are essential.

For more than 25 years, Quantum Devices has delivered durable, high-quality encoder solutions while continuously developing new technologies to meet the evolving demands of automation and smart manufacturing. Our encoder portfolio includes optical incremental encoders with resolutions up to 20,000 pulses per revolution (ppr), sine/cosine outputs for high-resolution feedback, and commutation capabilities for motor control applications. These features enable precise positioning, smooth motion control, and dependable operation in demanding environments.

In addition to encoders, Quantum Devices develops custom silicon photodiodes optimized for high sensitivity, fast response, and long-term stability. Our photodiodes support a wide range of sensing applications, including optical feedback systems, industrial sensing, medical instrumentation, and advanced automation technologies.

We offer a broad range of mechanical configurations to support diverse integration requirements, from compact, low-profile modular encoders for space-constrained robotic systems to rugged designs with integral bearings and IP66-rated enclosures for harsh industrial environments. Our engineering team works closely with customers to provide application-specific guidance and customized solutions for challenging motion control applications.

At Automate 2026, Quantum Devices will showcase hands-on encoder and photodiode solutions for robotics and automation applications. Visit our booth to explore precision feedback and sensing technologies designed to support the next generation of intelligent automation systems.