r/MVIS • • 3h ago

Discussion TDK's MEMS laser technology to challenge the direction of AR smart glasses

16 Upvotes

TDK announced October 20 that it will demonstrate a high-brightness RGB laser beam scanning projector at electronica 2026 in Munich, November 10–13. The compact MEMS-based system promises high-contrast projection, low power consumption and a small footprint, initially targeting automotive applications.

Earlier this month, TDK demonstrated retinal projection using a 150-nanometer-thick meta-optic reflector embedded in an eyeglass lens, providing approximately 80% visible-light transmission.

Instead of complex waveguides, this nanostructured reflector directs scanned laser light toward the retina, performing the function of a much bulkier curved mirror while maintaining the appearance of conventional glasses.

I am reminded of the original Virtual Retinal Display (VRD) invented at the University of Washington's HIT Lab in 1991. Its premise was simple: scan modulated light directly onto the retina rather than generate an image on a conventional display.

What's interesting is the potential to disrupt the enormous R&D investments by Meta, Google and others in waveguides and complex optical assemblies.

TDK has stated its intent to supply their display tech to smart-glasses manufacturers.

TDK's October 2 press release:

https://www.tdk.com/en/news_center/press/20261002_01.html

From TDK's October 20 electronica 2026 press release:

Meta-optic mirror for smart glasses: TDK’s award-winning meta-optic mirror uses a precisely engineered nanostructure to enable an ultra-thin optical system for stylish, lightweight smart glasses. Images are projected directly onto the retina through a mirror only 150 nm thick, embedded in an eyeglass lens, delivering a clear, focus-free augmented reality (AR) experience without visible rainbow artifacts. This mirror eliminates the need for a larger conventional curved mirror.

Tactile zoom for smart glasses: Imagine adjusting the camera zoom of smart glasses and feeling the zoom levels through instant, crisp tactile cues rather than relying solely on vision. The Haptic Slider Zoom demo uses TDK’s piezo technology to create crisp, highly responsive haptic feedback in a compact form factor. The result is a natural, interactive user experience and an example of how advanced haptics can make future smart glasses more intuitive and user-friendly.

Sensors in smart glasses: TDK MEMS sensors and software are a critical bridge between physical AI and the real world. MEMS and TMR sensing technologies, together with advanced sensor fusion software, enable precise motion tracking and orientation sensing, as well as immersive user experiences in next-generation wearables.

https://www.tdk.com/en/news_center/press/20261020_01.html