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LetinAR Is the Hidden Bet Behind the AI Glasses Boom
South Korea’s LetinAR makes the lenses that go inside the next generation of AI glasses, and most investors have never heard of them. The global AR glasses market is on track to hit $97 billion by 2030, according to Grand View Research. The picks and shovels play is right here, and the mainstream hasn’t caught on yet.
Why This Matters Right Now
The race to build AI glasses has never been more intense. Meta, Google, Samsung, and a dozen startups are all fighting for your face. But the hardware war isn’t just about chips or software. It’s about optics. You can’t have good AI glasses without lenses that are thin, bright, and clear.
That’s exactly what LetinAR builds. The Seoul-based company specializes in waveguide optics, the technology that projects digital images onto a lens so you can see the real world and digital information at the same time. According to IDC, shipments of AR and mixed reality headsets are expected to grow at a 46% compound annual growth rate through 2028. LetinAR is positioned right at the center of that supply chain. And in 2026, with hardware cycles accelerating, their window is opening fast.
The Contrarian Case for Optics
Here’s my contrarian take. Everyone is watching the chip wars, the software plays, the big platform bets. Nvidia is up. Apple is fighting. Meta is spending billions. But nobody is watching the company that makes the glass that holds it all together.
I’ve seen this pattern before. When the gold rush started, the people who got rich weren’t the miners. They sold picks and shovels. LetinAR is selling picks and shovels to the AI glasses industry, and they’re doing it with proprietary technology that’s very hard to copy.
Their Pin Mirror Waveguide technology allows for thinner lenses and a wider field of view than traditional waveguide approaches. This matters because the number one complaint about AR glasses has always been that they’re too bulky and the image quality is poor. LetinAR is solving both problems at the same time.
According to research from Goldman Sachs, the extended reality market including AR glasses will represent a $1.35 trillion opportunity by 2035. That’s not a typo. And right now, the companies supplying the core optical components are valued at a fraction of what the platform companies are worth.
Poor mindset investors are buying the hot names. Rich mindset investors are asking: what does every single one of those hot names need to build their product? Optics. Specifically, thin, high quality waveguide optics. That’s LetinAR’s entire business.
The company has already secured partnerships with multiple hardware manufacturers across Asia and is pushing into North American supply chains. As more companies race to ship AI glasses in 2026 and 2027, the demand for reliable optics suppliers goes up fast. LetinAR is one of very few companies in the world with the technical capability to supply at that scale.
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What This Means for You
Here’s what I would do if I were watching this space closely.
Stop chasing the platform companies. Meta, Apple, Google. Everyone already owns those. The real opportunity is in the supply chain. LetinAR isn’t publicly traded yet, but that may not stay true for long. Korean tech companies have been listing on both domestic and US exchanges at an increasing pace. When they do come to market, the early window fills fast.
Pay attention to who LetinAR is signing deals with. Each partnership announcement is a signal about which hardware companies are gaining real traction. If a major player signs a preferred supplier agreement with LetinAR, that tells you something concrete about their product roadmap before the press release even goes out.
Watch the patent filings too. LetinAR has been filing patents around their waveguide designs aggressively. According to the Korean Intellectual Property Office, Korean tech patent filings in optics and display technology increased 38% between 2023 and 2025. Patents are moats. Moats create pricing power. Pricing power creates margin.
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The AI glasses race is real. It’s accelerating. The winners won’t just be the companies that build the best software. They’ll be the ones that locked up the hardware supply chain before everyone else knew it mattered.
The Bottom Line
Everyone wants to own the AI glasses platform. Smart money owns the glass itself. LetinAR is building a business that every major AI glasses company will eventually need. I’m watching this one closely. The supply chain is where fortunes get made quietly, and this company is sitting right in the middle of it. When the mainstream catches on, the early window will already be closed.
Frequently Asked Questions
What does LetinAR actually make?
LetinAR makes waveguide optics for AI and augmented reality glasses. Their Pin Mirror Waveguide technology projects digital images onto thin lenses so users can see both the real world and digital content at the same time. They supply these optical components to hardware manufacturers building AI glasses products.
Is LetinAR publicly traded?
As of 2026, LetinAR is a private company headquartered in Seoul, South Korea. They’ve raised venture funding from multiple investors but haven’t announced a public offering. That status could change as the AI glasses market grows and the company expands its supply agreements globally.
Who competes with LetinAR in waveguide optics?
LetinAR competes with companies like Lumus, Dispelix, and WaveOptics in the waveguide space. The field is small because the technology is genuinely hard to build. LetinAR differentiates with their Pin Mirror approach, which enables thinner form factors and a wider field of view than several competing designs.
Why does waveguide technology matter for AI glasses?
Waveguide technology is what makes AI glasses actually wearable. Without it, you’d need a bulky display system to project images in front of your eyes. Thin waveguides let glasses look and feel close to normal eyewear while still showing digital information. That’s the difference between a product people wear every day and one that sits in a drawer.
How big is the AI glasses market right now?
The global AR glasses market is projected to reach $97 billion by 2030, according to Grand View Research. IDC projects AR and mixed reality headset shipments will grow at a 46% compound annual growth rate through 2028. Most of that growth depends on optics getting better and thinner, which is exactly what companies like LetinAR are working on.
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