光导型Maxwellian近眼显示器,通过输入图像的光学重构来扩大水平视场

IF 3.7 3区 工程技术 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Woongseob Han, Jae-Min Jeon, myeong-ho Choi, Jae-Hyeung Park
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引用次数: 2

摘要

我们提出了一种新颖的光导型光学透视Maxwellian近眼显示器的设计。所提出的显示器将垂直长输入图像重新配置为用于宽水平视角的水平长输出图像。通过使用折叠全息光学元件和光导内不同数量的全内反射来光学地执行输入图像的重新配置。内耦合图像的上部和下部经历不同数量的全内反射,被分离为两个图像。在分离之后,上部被折叠全息光学元件附加地衍射到下部的一侧。最后,水平平铺的上部和下部通过相应的全息光学元件向外耦合到眼睛。输出耦合器的光焦度将输出图像会聚到瞳孔上的焦斑,使得用户体验到所有聚焦图像。在光学实验中,通过调节记录角度来预先补偿显示器和全息光学元件记录系统之间的波长差。我们的原型成功地演示了输入图像的上下部分的水平平铺,显示出比输入大两倍的输出水平视场。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Lightguide type Maxwellian near-eye display with enlarged horizontal field of view by optical reconfiguration of input image
We present a novel design of the lightguide type optical see-through Maxwellian near-eye display. The proposed display reconfigures vertically long input images to horizontally long output images for wide horizontal viewing-angle. The reconfiguration of the input images is optically performed by using folding holographic optical elements and different numbers of total internal reflections within the lightguide. The upper and lower parts of the in-coupled image undergo different numbers of total internal reflections, being separated into two images. After the separation, the upper part is additionally diffracted by the folding holographic optical element to the side of the lower part. Finally, the horizontally tiled upper and lower parts are out-coupled towards the eye by corresponding holographic optical elements. The optical power of the output couplers converges the output image to a focal spot on the eye pupil so that users experience all-in-focus images. In the optical experiment, the wavelength difference between the display and the holographic optical element recording system was pre-compensated by adjusting the recording angle. Our prototype successfully demonstrates horizontal tiling of the upper and lower parts of the input images, showing a two-times larger output horizontal field of view than the input.
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来源期刊
Journal of Information Display
Journal of Information Display MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
7.10
自引率
5.40%
发文量
27
审稿时长
30 weeks
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