首页 > 论文 > 光电子技术 > 38卷 > 1期(pp:19-22)

基于复振幅调制的全息视网膜显示

Electro-holographic Retina Display Based on Complex Modulation

  • 摘要
  • 论文信息
  • 参考文献
  • 被引情况
  • PDF全文
分享:

摘要

出一种适用于增强现实的视网膜显示技术, 利用一个相位型空间光调制器结合计算机全息图算法, 实现了直接在视网膜上进行全息重建。首次从理论出发, 给出了相位型空间光调制器输入相位与眼球前平面光场的计算关系, 讨论并比较了基于GS的全息图计算方法和基于双相位编码的复振幅调制全息图计算方法的特点, 采用复振幅调制, 全息重建中的散斑噪声得到抑制。仿真和实验结果验证了应用于视网膜全息成像的计算机全息图算法的有效性。实验证明, 该方法能够利用一个纯相位空间光调制器在眼球里进行多平面的无散斑全息重建, 同时在视网膜附近重建振幅信息, 使得眼睛聚焦在某个平面时, 该平面的图像能够恰好投影在视网膜上。整个过程模拟了自然场景中人眼调焦和观察的过程, 不同于双目视差的三维显示方法, 文章提出的视网膜显示技术是一种真三维全息重建, 不存在视觉辐辏调节冲突。

Abstract

A single phase-only spatial light modulator and a double phase method were used to directly modulate the light at multiple planes inside the eye. The numerical relationship of light distribution between SLM plane and the plane in front of the cornea was firstly given, and then the difference between holographic reconstruction by traditional GS algorithm and complex modulation based on double phase method were discussed. Due to the complex modulation, the speckle noise was reduced. Both computer simulation and optical experiment have been conducted to verify the effectiveness of the proposed electro-holographic retina display method. The method could employ a phase-only SLM to implement multi-plane speckleless holographic reconstruction inside the eye. By changing the focal length of the eye, images at different depth planes were sharply projected onto the retina, with which the accommodation of natural vision was mimicked. Different from three-dimensional(3D) display method based on binocular parallax, the proposed method is a true 3D holographic reconstruction method, which could solve the accommodation and convergence conflict problem for augmented display.

Newport宣传-MKS新实验室计划
补充资料

中图分类号:TP317.4

DOI:10.19453/j.cnki.1005-488x.2018.01.003

所属栏目:研究与试制

基金项目:科技部863项目(2015AA016301); 江苏省重点研发计划(BE2016216)

收稿日期:2017-12-07

修改稿日期:--

网络出版日期:--

作者单位    点击查看

祁怡君:东南大学 电子科学与工程学院, 南京 210096
张秀敏:江苏新广联半导体有限公司, 无锡 江苏 214192
闫晓密:江苏新广联半导体有限公司, 无锡 江苏 214192
黄慧诗:江苏新广联半导体有限公司, 无锡 江苏 214192
夏军:东南大学 电子科学与工程学院, 南京 210096

联系人作者:祁怡君(yijun_qi2@163.com)

备注:祁怡君(1992-), 女, 硕士, 主要研究方向为三维显示, 全息显示;

【1】Lee W H.III Computer-generated holograms: techniques and applications[J].Progress in Optics,1978,16: 119-232.

【2】Ito T, Shimobaba T, Godo H, et al. Holographic recon-struction with a 10-μm pixel-pitch reflective liquid-crystal display by use of a light-emitting diode reference light[J]. Optics Letters,2002,27:1406-1408.

【3】Leister N. Large holographic displays as an alternative to stereoscopic displays[J]. Proc Spie, 2008 ,6803, 68030M-68030M-68039.

【4】Hilaire P S, Benton S A , Lucente M.Synthetic aperture holography: a novel approach to three-dimensional displays [J].Journal of the Optical Society of America A,1992, 9: 1969-1977.

【5】Smalley D E , Smithwick Q Y J , Bove V M.Holographic video display based on guided-wave acousto-optic devices[J].Proceedings of SPIE-The International Society for Optical Engineering,2007, 6912:69120H-69120H-69110.

【6】Huebschman M, Munjuluri B,Garner H. Dynamic holographic 3-D image projection[J]. Opt. Express ,2003:11, 437.

【7】Tay S, Blanche P A, Voorakaranam R, et al. An updatable holographic three-dimensional display[J]. Nature, 2008,451: 694

【8】Fienup J R. Reconstruction of an object from the modulus of its Fourier transform[J].Optics Letters, 1978,3: 27.

【9】Takaki Y, Yokouchi M. Speckle-free and grayscale hologram reconstruction using time-multiplexing technique[J].Opt. Express,2011 ,19:7567 .

【10】Makowski M, Ducin I, Kakarenko K, et al. Efficient image projection by Fourier electroholography[J].Optics Letters, 2011,36:3018.

【11】Makowski M. Minimized speckle noise in lens-less holographic projection by pixel separation[J].Opt. Express ,2013,21:29205-29216.

【12】Qi Y, Chang C, Xia J. Speckleless holographic display by complex modulation based on double-phase method[J].Optics Express ,2016,24:30368.

【13】Lucente M E. Interactive computation of holograms using a look-up table[J]. Journal of Electronic Imaging, 1993,2(1):28--34.

【14】常琛亮, 夏 军,雷 威.One step hologram calculation for multi-plane objects based on nonuniform sampling(Invited Paper) [J]. Chinese Optics Letters, 2014,12: 91-94.

【15】Chang C , Xia J , Wu J ,et al.Scaled diffraction calculation between tilted planes using nonuniform fast Fourier transform[J].Optics Express, 2014,22: 17331-17340.

引用该论文

QI Yijun,ZHANG Xiumin,YAN Xiaomi,HUANG Huishi,XIA Jun. Electro-holographic Retina Display Based on Complex Modulation[J]. Optoelectronic Technology, 2018, 38(1): 19-22

祁怡君,张秀敏,闫晓密,黄慧诗,夏军. 基于复振幅调制的全息视网膜显示[J]. 光电子技术, 2018, 38(1): 19-22

您的浏览器不支持PDF插件,请使用最新的(Chrome/Fire Fox等)浏览器.或者您还可以点击此处下载该论文PDF