L型全息波导构型设计  

Design of a Holographic Waveguide with L Configuration

作　　者：相广鑫 郭岩[3] 李文强[2] 闫占军 谢意[2] 周家武[2] 

机构地区：[1]光电控制技术重点实验室,河南洛阳471000 [2]中国航空工业集团公司洛阳电光设备研究所,河南洛阳471000 [3]中国人民解放军驻沈阳飞机工业(集团)有限公司军事代表室,沈阳100850

出　　处：《电光与控制》2017年第3期89-92,共4页Electronics Optics & Control

基　　金：航空科学基金(20135169016)

摘　　要：针对单反射面单波导板构型光栅设计与制造复杂的问题,提出一种L型单波导二维扩展构型。该构型由2个侧反射面和3块周期和条纹走向完全相同的全息光栅组成,用于降低光栅的设计制造难度。根据对构型光路的计算分析,该构型的转向光栅尺寸不超过40 mm×40 mm。仿真结果表明,该构型正确合理,且可以实现30°×30°的视场和30 mm的大出瞳显示,可用于增强现实显示或头戴式显示。It is usually difficult to design and manufacture the gratings of single plate with single reflecting surface,thus we proposed a two-dimensional,L-shaped extended configuration with single plate. This configuration consists of two specular reflecting surfaces and three holographic gratings with the same period and groove orientation,which makes gratings design and fabrication easier. According to the calculation and analysis to the optical path of configuration,the size of the turning grating is no larger than 40 mm × 40 mm.The simulation result demonstrates that the display configuration is reasonable and correct,and can realize the display effect with 30° × 30° field of view and 30 mm large exit pupil. This configuration can be applied to an augmented reality display or a Head-Mounted Display（HMD）.

关 键 词：波导构型 全息光栅 头戴式显示 增强现实 

分 类 号：TN25[电子电信—物理电子学]