Tolosa Ángel, Martinez-Cuenca Raúl, Navarro Héctor, Saavedra Genaro, Martínez-Corral Manuel, Javidi Bahram, Pons Amparo
Opt Express. 2014 Dec 29;22(26):31853-63. doi: 10.1364/OE.22.031853.
A common drawback in 3D integral imaging displays is the appearance of pseudoimages beyond the viewing angle. These pseudoimages appear when the light rays coming from each elemental image are not passing through the corresponding microlens, and a set of barriers must be used to avoid this flipping effect. We present a pure optical arrangement based on Köhler illumination to generate these barriers thus avoiding the pseudoimages. The proposed system does not use additional lenses to project the elemental images, so no optical aberrations are introduced. As an added benefit, Köhler illumination provides a higher contrast 3D display.
三维积分成像显示器的一个常见缺点是在视角之外会出现伪像。当来自每个元素图像的光线没有穿过相应的微透镜时，就会出现这些伪像，因此必须使用一组屏障来避免这种翻转效应。我们提出了一种基于柯勒照明的纯光学装置来生成这些屏障，从而避免伪像。所提出的系统不使用额外的透镜来投射元素图像，因此不会引入光学像差。另外，柯勒照明提供了更高对比度的三维显示。
