一种基于全息功能屏的集成成像技术研究

A Study of Holographic Functional Screen Based Integral Imaging

集成成像技术是一种可以复现空间光场的显示技术,该技术具有结构简单、无需辅助设备、可以多人同时观察等特点,这项显示技术在科学研究、医学、教育等方面都有广阔的应用前景。但是传统的集成成像技术应用到相关领域时遇到了一些问题,诸如分辨率太低、可观察角度不足等,这是因为传统集成成像技术往往以妥协的方式平衡显示参数之间的关系,很难同时保证多个参数的表现。为了提高集成成像技术的显示性能,全息功能屏被加入了显示系统并且取得了预期的效果。本文探讨了这种加入了全息功能屏的集成显示系统的原理同时给出了其显示参数的数学形式,给出的公式可以帮助设计满足相应要求的集成显示系统,同时基于该理论开展的实验一并在文中给出。实验表明本文中设计组装的集成成像显示系统符合理论预期且具有较高的显示性能。该系统的分辨率达到了相同尺寸平面显示器790×444像素的效果,显示视角达到60°,这样的显示参数已经接近早期液晶显示系统,相信在将来该种显示技术可以得到广泛的应用。

Integral Imaging is a technique used to reconstruct light field in real space , which is capable for multi - viewers at the same time , and no additional accessory is needed and is easy to build as well , so it has the potential to be widely used among research , medical and enter - tainment , etc .However this traditional Integral Imaging has its limitation such as low resolu - tion and restricted viewing angle , it has to make comprise among all those display parameters and to have no high performance for all the parameters and it would cost too much.So it is proposed to introduce Holographic Functional Screen into Integral Imaging that could reduce the cost.This paper present the theory of the Holographic Functional Screen based Integral Imaging and derived the formulae for display parameters.Those formulae can be used to de - sign a display system for specific application and experiments is executed to verify the useful - ness of the formulae.The experiment build a system with display resolution 790×444 , the angle of view 60°, which are close to the parameters of Liquid Crystal Display system at its early stage , it may not be long for this technique comes into our life.