Illumination/Display Technologies in Vision Research

视觉研究中的照明/显示技术

• 批准号: 6620149
• 负责人: Robert H Webb
• 金额: $ 35.05万
• 依托单位: SCHEPENS EYE RESEARCH INSTITUTE
• 依托单位国家: 美国
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-03-01 至 2006-02-28
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6620149
• 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

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，允许简单实施过去已知但困难的心理物理和成像程序。新的超亮LED（发光二极管）现在可以呈现无激光斑点的高亮度显示。 空间光调制器（SLM），无论是基于液晶或MEMS镜，允许这些显示器具有必要的高对比度。由此产生的显示可能麦克斯韦认为心理物理学在非常高的速度，扩展的强度范围和高线性度。 应用于前眼组件（透镜、角膜、玻璃体）的实时成像的相同技术将允许使用共焦技术而无需激光进行成像。 最后，使用新的可访问波长，我们可以定制成像，以提供真正在近红外的伪彩色图像，但可以直接与熟悉的可见彩色图像相关。因此，该建议涉及三个明显不同的眼科研究领域，这些领域由将使它们成为可能的技术联系在一起。