While Meta burns billions on the metaverse and Apple polishes its $3,500 Vision Pro, a 27-person Korean startup is quietly building the optical backbone that AR glasses actually need. LetinAR isn't chasing hype—they're solving the fundamental physics problem keeping AR glasses thick, power-hungry, and socially awkward.

"The AR glasses race isn't about who has the flashiest demo—it's about who can shrink optics without shrinking user experience. LetinAR is betting on pin-mirror arrays while everyone else chases waveguides."

The tech stack tells a story of pragmatism: jQuery, Tailwind, Bootstrap—no fancy React frameworks or bleeding-edge stacks. This is a team focused on optics, not frontend trends. Their social presence is minimal but present: YouTube, Facebook, LinkedIn. They're not broadcasting noise; they're building credibility in the AR hardware community where it matters.

• Korean AR optics startup with working revenue and lean operations
• Pin-mirror optics vs. waveguide race—different physics, potentially better form factor
• 48% organic traffic from technical keywords shows they're playing the long game
• Targeting enterprise/partners, not direct-to-consumer hype