Opt Lett. 2020 Jul 1;45(13):3361-3364. doi: 10.1364/OL.393194.
Occlusion of a real scene by displayed virtual images mitigates incorrect depth cues and enhances image visibility in augmented reality applications. In this Letter, we propose a novel optical scheme for the occlusion-capable optical-see-through near-eye display. The proposed scheme uses only a single spatial light modulator, as the real-scene mask and virtual image display simultaneously. A polarization-based double-pass configuration is also combined, enabling a compact implementation. The proposed scheme is verified by optical experiments which demonstrate a 60 Hz red-green-blue video display with a 4-bit depth for each color channel and per-pixel dynamic occlusion of a 90.6% maximum occlusion ratio.
遮挡真实场景的显示虚拟图像可以减轻错误的深度线索，并增强增强现实应用中的图像可见度。在这封信中，我们提出了一种用于遮挡能力的光学透视近眼显示器的新型光学方案。所提出的方案仅使用单个空间光调制器，同时作为真实场景掩模和虚拟图像显示。还结合了基于偏振的双通配置，实现了紧凑的实现。通过光学实验验证了所提出的方案，该方案演示了具有 4 位深度的每个颜色通道的 60 Hz 红-绿-蓝视频显示，以及 90.6%最大遮挡比的每像素动态遮挡。
