大视场宽出瞳近眼显示光机优化设计方法

The wide-angle and wide exit pupil of the display optics in near-eye display Systems present a trade-off rela-tionship. An optical design scheme for achieving both wide-angle and large exit-pupil sizes in near-eye display Systems is proposed and discussed. For the projector design, several aspherical lenses are co-designed to improve the imaging quality and to reduce the distortion, where the exit pupils in YZ and XZ plane are separated to expand the exit pupil in one direc-tion and increase the optical length from the projector to the exit pupil. To validate this optimization design method, a near-eye display System with full-color, a field of view of 53. 6°, an exit pupil distance of 30mm, and an exit pupil diame-ter of 8mm is achieved. The optimized design method of the near-eye display optics provides a technical reference for the realization of wide-field near-eye display Systems.