文献类型： 会议论文

第一作者： P. Mermillod

作者： P. Mermillod ¹ ; AM. Milcent ¹ ; S. Faure ¹ ; JL. Meyzonnette ² ; J. Taboury ² ;

作者机构： 1.Sagem DS, 178 rue de Paris, 91300, Massy, France

2.Institut d'Optique Graduate School, 91120, Palaiseau, France

关键词： laser projection;virtual retinal display;head mounted display;see-through;pupil expander;faceplate;speckle;human perception

会议名称： SPIE Conference on Optical design and engineering

主办单位：

页码： 71001G:1-71001G:10

摘要： In the context of a virtual retinal display, the exit pupil of the optical device is small, and for this reason, even small eye movement of the user will induce losing the virtual image. In order to increase pupil size, we work on devices such as diffuse surfaces, intended to expand emission angles of sources. Unfortunately, because of laser coherence, this type of device will create speckle noise, which will degrade image quality~([1]). In previous papers~([2]) we have described in details how this noise is generated by a classical diffuser plate, and how to specify devices in order to decrease this noise. In this paper, we analyze another type of pupil expander: faceplates. In addition to this modeling, we compare both devices and conclude that the faceplate is a better device than a classical diffuser.

分类号： N52