TDK Corp. has unveiled the ICM-45685, a custom sensing solution for smart glasses. The InvenSense SmartMotion for Smart Glasses is a custom inertial measurement unit (IMU) that is designed to enable precise, responsive, context-aware motion tracking at ultra-low power. This includes high accuracy head tracking, stable image/video capture, intuitive UI control, and posture recognition.

(Source: TDK Corp.)

The ICM-45685 sensor features on-chip sensor fusion software and optimized memory to support multiple algorithms running on-chip concurrently. This enables simultaneous use of features including precise head orientation tracking, optical/electronic image stabilization, and activity/inactivity tracking, TDK said.

The new sensor builds on the ICM-45686, which has been widely adopted for augmented reality/virtual reality (AR/VR), adding software features that target smart glasses applications. TDK sensing solutions for AR/VR and AI glasses applications also include SmartSound MEMS microphones (T5837, T5838, and T5848), and SmartSonic ultrasonic time-of-flight sensors (ICU-30201 and ICU-20201).

Other sensors for AR and smart glasses include the PositionSense 9-axis solution (IMU+TMR) for absolute orientation detection and navigation, TMR sensors for hinges on glasses, and temperature sensors for measuring body temperature or ambient temperature as well as for overtemperature monitoring of optical components.

The ICM-45685 is now available by direct sales inquiry. Additional features such as donning/doffing and voice vibration detection will become available at the end of the year.

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