QED EYEWEAR’S Phi system brings innovation to rimless
- By Editorial Team
The “Phi” system from Q.E.D. is described as “redefining rimless eyewear with a patented set-screw design that makes assembly faster, stronger, and more sustainable”. Unlike traditional systems, “Phi” requires no glue, no consumable parts, and no complex adjustments. The result is a reliable, fully reversible mounting that saves time in the lab, reduces after-sales service, and minimizes material waste. For consumers, “Phi” offers stability, lighter weight, and limitless customisation in lens shape and size. For optical professionals, it streamlines workflow and provides a robust solution to long-standing challenges in rimless eyewear. Q.E.D. Eyewear was awarded the 2025 SILMO d’Or for Technological Innovation with the Phi system. “The recognition at SILMO Paris validates years of engineering and field testing,” said Michael Toulch, Optometrist and Inventor of the “Phi” system.
“Our aim has always been straightforward: a rimless mounting approach that optical professionals can trust every day—reliable, serviceable, and precise. We believe “Phi” sets a new standard for rimless mounting across the industry.” Q.E.D. Eyewear and the “Phi” system were developed at Harry Toulch Optométristes (est. 1958), a three-generation Montreal practice with a strong history of research and innovation. Previous rimless systems developed by the Toulch team — including Look & Krys 360, Try Change, and Interfaces — are described as highly successful and widely adopted. With “Phi,” the mission is to streamline rimless eyewear, improve speed and reliability, reduce waste, and bring the advantages of rimless design to both opticians and consumers.
