基于散斑抑制方法的半导体激光显示系统实现

在显示技术不断发展的今天，随着对于激光技术的深入研究，激光显示的优势逐渐得到体现。激光作为光源具有很好的单色性极很窄的光谱线宽，这些特点使得激光成像的颜色饱和度高，显示的颜色数多，比传统光源有着更宽的色域，并且在画面亮度的方面也更有优势。然而由于激光光束高度相干性而产生的激光散斑，会降低图像的质量。因此，对于激光散斑和散斑抑制的研究工作是激光显示领域研究的一个重点。文中我们设计了一种激光投影照明系统，该系统使用的光学元件结构简单，占用空间小，可以很好地运用于投影仪的设计和使用中并保持良好的光效。系统中针对激光散斑的成因设计了一种复合型的散斑抑制方案，这种消散斑方法可以将白场的散斑对比度从0.132降低至人眼识别极限以下的0.042。

Implementation of a semiconductor laser display system based on a scatter suppression method

With the continuous development of display technology,the advantages of laser display have been gradually reflected with the in depth research on laser technology.The laser as a light source has excellent monochromatic properties and a very narrow spectral line width which makes the laser imaging highly saturated,displaying a larger number of colors,a wider color gamut than traditional light sources and an advantage in terms of picture brightness.However,laser scatter due to the high coherence of the laser beam can reduce the quality of the image.Therefore,the study of laser scatter and scatter suppression is a major focus of research in the field of laser displays.In this paper,a laser projection lighting system that uses simple optics,takes up little space and is well suited to the design and use of projectors and maintains good light efficiency.In this system,a compound scatter suppression scheme is designed to address the causes of laser scatter.This scatter suppression method can reduce the scatter contrast of white field from 0.132 to 0.042 below the recognition limit of human eyes.