Jonathan Everett

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How to Define Centration Tolerances in Micro Optics

By Jonathan Everett | Feb 17, 2026 8:42:44 AM

When you scale an optical design from standard-sized components down to micro-optics, something counterintuitive happens with centration tolerances. The same edge thickness runout that barely matters on a 25 mm lens can produce ten times the angular deviation on a 2mm lens. Understanding why—and how to specify tolerances that actually work at the micro scale—is the difference between a successful build and an expensive lesson.

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