SGER: Intraocular Camera for Retinal Prostheses (Optical System)

SGER：视网膜假体眼内相机（光学系统）

• 批准号: 0638469
• 负责人: Armand Tanguay,Jr.
• 金额: --
• 依托单位: University of Southern California
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-08-15 至 2008-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0638469&HistoricalAwards=false
• 关键词: SGER; Intraocular; Camera; Retinal; Prostheses; SGER; Intraocular; Camera; Retinal; Prostheses

0638469TanguayThe fundamental goal of this research project is to investigate the feasibility of an ultra compact optical imaging system for a miniature camera designed for surgical implantation into the human eye, with capability to couple directly to a pixellated microstimulator array that is proximity-coupled to the retinal surface. The development of such an intraocular camera (IOC) would eliminate the need for an external head-mounted or eyeglass-mounted camera, as well as the need to transmit video streams into the eye cavity from an external device. The capability for accommodation with no moving parts or feedback control will be incorporated by employing camera designs that exhibit nearly infinite depth of field. Such an ultra compact optical imaging system will require a unique combination of high performance refractive and diffractive optical elements (including novel stratified volume diffractive optical elements) and relaxed system constraints derived from human psychophysics. A further goal is to assess the fundamental and technological limitations to camera miniaturization, driven by the constraints provided by the number, density, and placement of the microelectrodes within the microstimulator array. Psychophysical evaluation of the recognition of both static and dynamic (motion) images at low pixellation levels will be undertaken to provide key constraints for the design of the proposed intraocular camera (IOC) optics.

0638469TAGUAY该研究项目的基本目标是研究一个超紧凑的光学成像系统对设计用于外科手术植入人眼的微型摄像机的可行性，并且能够直接将与像素的微刺激器阵列直接搭配到与网状表面相连。这种眼内摄像机（IOC）的开发将消除对外部安装或眼镜安装的摄像机的需求，以及将视频流从外部设备传输到眼腔中的需求。没有运动部件或反馈控制的容纳功能将通过采用几乎无限景深的相机设计来纳入。这种超紧凑的光学成像系统将需要高性能折射率和衍射光学元素（包括新型分层体积衍射光学元件）和源自人类心理物理学的松弛系统约束。另一个目标是评估摄像机微型化的基本和技术局限性，这是由微刺激器阵列中微电极的数量，密度和放置所提供的约束所驱动的。将对静态和动态图像（运动）图像识别低像素水平的心理物理评估，以为设计的眼内摄像头（IOC）光学的设计提供关键的约束。