MICRO-LENS ARRAY BASED LIGHT TRANSMITTING SCREEN WITH HIGH RESOLUTION AND LOW IMAGING ARTIFACTS

摘要

A light-transmission screen includes a diffusing element formed from a micro-lens array (190) for projecting images in a viewing space. The screen generates images of improved quality by varying structural features of one or more lenses in the array so that light is directed in different directions and/or with different optical properties compared with other lenses in the array. The structural features which are varied include any spacing of the lenses (180, 181, 182) in the array. As a result of these variations, the screen achieves wider viewing angles, improved screen resolution and gain, and a greater ability to reduce or eliminate aliasing or other artifacts in the generated images compared with conventional screens.