Radiant Vision Systems, LLC

Roughly 65% of people require vision correction. For AR/MR devices to be practical for these people, makers of smartglasses face a two-fold challenge. First, they need to embed display technology into customizable optics that match each user’s unique prescription. Thousands of individual prescription permutations for near-sightedness, far-sightedness, and/or astigmatism exist, the second challenge is how to effectively quality test AR/MR devices to assess key visual performance characteristics such as MTF, uniformity, and distortion when the prescription power cannot be removed from the system. This paper provides a review of different metrology approaches currently being applied, including mechanical methods such as reverse compensation optics and software algorithms to compensate for prescription power. We will review a novel, patent-pending metrology solution, and present research results of testing various methods. Finally, we present suggested metrology focus range requirements and discuss the advantage of using diopters as a core unit of measurement.