Holographic display system for restoration of sight to the blind.

Holographic display system for restoration of sight to the blind.
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DOI:
10.1088/1741-2560/10/5/056021
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发表时间:
2013-10
影响因子:
4
通讯作者:
Čižmár T
Čižmár T
中科院分区:
工程技术2区
文献类型:
--
作者:
Goetz GA;Mandel Y;Manivanh R;Palanker DV;Čižmár T

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我们提出了一个全息近眼显示系统,使光学方法恢复视力的盲人,如光伏视网膜假体,光遗传学和其他光激活技术。我们比较它与传统的LCD或DLP显示器的图像质量,视野,光学效率和安全性。我们详细介绍了全息显示系统的光学配置和它的特性,使用相位空间光调制器。我们描述了控制全息显示系统中零衍射级和散斑相关问题的方法,并评估了这种系统的图像质量。我们表明,全息技术提供了显着的优势,在峰值辐照度和功率效率,并使设计,本质上比LCD或DLP为基础的系统更安全。我们展示了我们的全息显示系统的性能在评估皮质响应交替光栅投射到大鼠视网膜。我们解决与高亮度,近眼显示系统的设计相关的问题,并提出解决方案的效率和安全性的挑战与光学设计,可以小型化和安装到护目镜。
We present a holographic near-the-eye display system enabling optical approaches for sight restoration to the blind, such as photovoltaic retinal prosthesis, optogenetic and other photoactivation techniques. We compare it with conventional LCD or DLP-based displays in terms of image quality, field of view, optical efficiency and safety. We detail the optical configuration of the holographic display system and its characterization using a phase-only spatial light modulator. We describe approaches to controlling the zero diffraction order and speckle related issues in holographic display systems and assess the image quality of such systems. We show that holographic techniques offer significant advantages in terms of peak irradiance and power efficiency, and enable designs that are inherently safer than LCD or DLP-based systems. We demonstrate the performance of our holographic display system in the assessment of cortical response to alternating gratings projected onto the retinas of rats. We address the issues associated with the design of high brightness, near-the-eye display systems and propose solutions to the efficiency and safety challenges with an optical design which could be miniaturized and mounted onto goggles.
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