Abstract

An off-axis optical system with an $x-y$ polynomial surface for a see-through head-mounted display (HMD) is presented. With the use of an $x-y$ polynomial surface, an off-axis see-through HMD system with one tilted spherical combiner and six relay optical lenses is designed. An off-axis see-through HMD with a $15\mathrm{mm}$ exit pupil, a $40°\times 30°$ FOV, and $70\mathrm{mm}$ eye relief is achieved. Furthermore, a binocular off-axis see-through HMD prototype is fabricated and the performance of the system is experimentally tested; $972\mathrm{cd}/{\mathrm{m}}^2$ of luminance is measured at the position of the exit pupil of the HMD. A typical augmented reality image captured outdoors with the HMD prototype is also demonstrated.

© 2010 Optical Society of America

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