OPTICAL DISTORTION CORRECTION FOR EYEGLASSES-TYPE WEARABLE DEVICE USING MULTI-MIRROR ARRAY

We developed an optical distortion correction technique for an eyeglasses-type wearable device using a multi-mirror array (MMA). This wearable device is small and light weight, but optics using MMA can cause optical distortions, such as geometric distortion and chromatic aberration of magnification, that depend on the user's pupil distance and degrade the visibility of displayed virtual images. We model distortion in a captured virtual image by using the proposed virtual image evaluation system, and calculate an inversely corrected image based on the distortion. As a result, the proposed technique provides users with clear visibility regardless of pupil distance.