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Illumination/Display Technologies in Vision Research

视觉研究中的照明/显示技术

基本信息

批准号：
6858524
负责人：
Robert H Webb
金额：
$ 36.8万
依托单位：
SCHEPENS EYE RESEARCH INSTITUTE
依托单位国家：
美国
项目类别：
财政年份：
2003
资助国家：
美国
起止时间：
2003-03-01 至 2007-02-28
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/6858524
关键词：
anterior chamber bioimaging /biomedical imaging biomedical equipment development clinical research confocal scanning microscopy cornea eye human subject image processing imaging /visualization /scanning lens psychophysics technology /technique development vision vitreous body

项目摘要

DESCRIPTION (provided by applicant): This is a proposal based in newly available technologies to allow simple implementations of psychophysical and imaging procedures that have been known but difficult in the past. New ultra-bright LEDs (light-emitting diodes) now make it possible to present high brightness displays without laser speckle. Spatial light modulators (SLMs), either liquid crystal or MEMs mirror based, allow these displays to have the necessary high contrast. The resulting displays make possible Maxwellian view psychophysics at very high speeds, extended intensity range and high linearity. The same technologies, applied to live imaging of the anterior ocular components (lens, cornea, vitreous) will allow imaging using confocal techniques without lasers. Finally, with the newly accessible wavelengths, we can tailor the imaging to give a pseudo-color image that is really in the near infrared, but that can be directly related to the familiar visible colored images. This proposal therefore addresses three apparently quite different areas of ophthalmic investigation, linked by the technologies that will enable them.

描述（由申请人提供）：这是一项基于新可用技术的提案，允许简单地实现过去已知但困难的心理物理和成像程序。新型超亮 LED（发光二极管）现在可以实现无激光散斑的高亮度显示。基于液晶或 MEM 镜的空间光调制器 (SLM) 使这些显示器具有必要的高对比度。由此产生的显示器使麦克斯韦视图心理物理学以非常高的速度、扩展的强度范围和高线性度成为可能。应用于前眼部（晶状体、角膜、玻璃体）实时成像的相同技术将允许使用共焦技术而不使用激光进行成像。最后，利用新近可用的波长，我们可以定制成像以提供真正处于近红外范围内的伪彩色图像，但可以与熟悉的可见彩色图像直接相关。因此，该提案涉及眼科研究的三个明显不同的领域，这些领域通过实现这些领域的技术联系在一起。