Phosio raises $4M to build low-cost smart glasses lens factory
What's the deal? Phosio Corp, a materials technology company developing low-temperature UV-cured metal oxide thin films for smart glasses, has closed a $4M funding round. The capital will fund construction of an advanced lens factory in Oregon, US. Taiwan-based MESH VC led the round, with participation from Elevate Capital, Willamette Valley Capital, and Silicon Catalyst Ventures. Total funding now exceeds $4.94M.
Why now? Smart glasses are widely seen as the next major computing platform after smartphones. But mass adoption hinges on making them lightweight, responsive, and affordable — and current methods for manufacturing optical gratings are slow, expensive, and hard to scale.
Phosio says its UV-cured metal oxide films can be deposited at ultra-low temperatures, enabling the use of flexible, lightweight materials like plastic instead of traditional substrates. The company claims its process cuts production time by up to 100x and costs by up to 90% compared to conventional sol-gel or vapour deposition methods.
The films also offer tunable refractive indices and clear optical quality across the visible spectrum — no yellowing or haze — enabling brighter images, wider fields of view, and slimmer designs.
What could go wrong? Lab-stage breakthroughs don't always survive the jump to factory-floor production. Scaling a novel thin-film process while maintaining the promised cost and quality advantages is a major engineering challenge. And with just under $5M in total funding, Phosio has a thin financial cushion if the factory buildout hits snags.
The company also faces a chicken-and-egg problem: it needs smart glasses makers to adopt its lenses, but the broader smart glasses market itself remains nascent and unproven at consumer scale.
The signal: MESH VC's lead investment marks a notable cross-Pacific bet on US-based optics manufacturing at a time when smart glasses supply chains are becoming increasingly geopolitical. Phosio, classified by Dealroom as an early-growth company specialising in nano-imprintable high-index optical materials, sits at a critical chokepoint: the lens. As Meta, Apple, and a wave of Asian hardware makers race to ship consumer-ready smart glasses, startups that can credibly slash component costs stand to become acquisition targets or essential suppliers — but only if they can prove factory-scale yield first.
Read more: news.nweon.com
