LetinAR’s PinTILT Technology: Pioneering the Future of AI-Powered Smart Glasses
Imagine cruising on a motorcycle at 160 kilometers per hour when an arrow materializes on the road ahead, guiding you precisely where to turn. No smartphone, no dashboard—just your helmet equipped with a lens the size of a thumbnail. This scenario is no longer a futuristic concept; it’s set to become a reality on European roads as early as this year, offering a glimpse into the evolving landscape of smart eyewear.
In recent years, major technology companies have been making significant strides in the smart glasses arena. Meta has been marketing AI-enabled Ray-Ban glasses since 2023, Google is developing Android XR, and Apple is anticipated to enter the market soon. Reports suggest that Samsung is preparing to unveil its first AI-capable smart glasses, co-designed with Gentle Monster, at a Galaxy Unpacked event in London this July. Chinese tech giants like Huawei, Alibaba, and Xiaomi are also actively participating in this burgeoning field.
The surge in interest is reflected in the numbers. Global shipments of AI glasses skyrocketed to 8.7 million units in 2025, marking a more than 300% increase from the previous year. Analysts project that this figure will surpass 15 million units this year, indicating a rapidly growing market.
Amidst this technological race, suppliers and component manufacturers are positioning themselves to meet the escalating demand for AI-powered smart glasses. One such company is LetinAR, a South Korean startup that has dedicated the past decade to developing optical technology aimed at making smart glasses more practical and wearable.
Backed by LG Electronics, LetinAR recently secured $18.5 million in funding from Korea Development Bank and Lotte Ventures, among others, in anticipation of its planned 2027 initial public offering in South Korea. Notably, LG Electronics, a previous investor, has begun developing its own AI smart glasses, underscoring the significance of this emerging market.
Founded in 2016 by CEO Jaehyeok Kim and CTO Jeonghun Ha, who have been friends since high school, LetinAR focuses on creating the optical modules that are crucial for smart glasses functionality. These tiny lens components project images into the user’s field of vision and are pivotal in determining whether smart glasses are practical for everyday use or remain cumbersome gadgets.
The challenge lies in designing optical modules that are lightweight, thin, and energy-efficient while delivering sharp, clear images. Achieving this balance in a component small enough to fit within a standard eyeglass frame is a significant engineering feat. LetinAR’s solution to this challenge is its proprietary PinTILT technology.
PinTILT involves arranging tiny optical elements within a lens to direct light precisely into the user’s eye, minimizing scatter. Traditional smart lens technologies, such as waveguide systems, often disperse light across the entire lens, resulting in dimmer images and higher energy consumption. In contrast, PinTILT focuses light directly into the eye, producing brighter images in a thinner, lighter form factor with reduced power usage.
This innovation addresses a critical industry problem: creating smart glasses that are both functional and comfortable for daily wear. By enhancing image brightness and extending battery life, PinTILT technology makes smart glasses more practical for consumers.
LetinAR’s optical modules are already in production, with clients including Japan’s NTT QONOQ Devices and Dynabook, formerly known as Toshiba Client Solutions. These partnerships provide LetinAR with valuable experience in large-scale manufacturing. The company is also engaged in research and development discussions with major technology firms regarding next-generation AI glasses, though specific names have not been disclosed.
A particularly demanding client is Aegis Rider, a Swiss deep-tech company spun out of ETH Zurich’s Computer Vision Lab. Aegis Rider is developing an AI-powered augmented reality helmet that displays navigation, speed, and safety alerts directly in a motorcycle rider’s field of vision. These alerts appear anchored to the road itself, as if physically painted on the world ahead, rather than floating on the visor. LetinAR’s optical module is integral to this helmet, which is targeting the European and Swiss markets in 2026.
With the latest funding, bringing the total raised to $41.7 million, LetinAR plans to scale up production as the AI glasses market transitions from early adopters to mass production. CEO Jaehyeok Kim emphasizes that hardware devices like AI glasses represent the next layer in integrating AI into everyday life.
As the smart glasses market continues to expand, companies like LetinAR are at the forefront, developing the essential components that will make these devices practical and appealing to a broad consumer base. Their innovations in optical technology are not only enhancing the functionality of smart glasses but also paving the way for their widespread adoption in various aspects of daily life.
