Design and Construction of Camera-Based Spectrometers and Polarimeters for Vision Research

用于视觉研究的基于相机的光谱仪和旋光仪的设计和构建

• 批准号: 9419566
• 负责人: Ellis Loew
• 金额: --
• 依托单位: Cornell Univ - State: AWDS MADE PRIOR MAY 2010
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-03-15 至 1997-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9419566&HistoricalAwards=false
• 关键词: Design; Construction; Camera; Based; Spectrometers

In order to understand the possible functions of ultraviolet-(UV) and polarization-vision in animals, it is necessary to be able to view and measure these environmental parameters. Since we are functionally blind to these aspects of the photic environment, we must depend on instrumentation such as spectroradiometers and cameras for visualization. It is also necessary that we understand how these environmental parameters vary with time as many animals gain and lose these visual sensitivities with age. This project will provide two new instruments for the study of W and polarization vision. The first is a photographic camera-based spectroradiometer which will allow for unattended, long-term monitoring of the solar spectrum from 300 nm to 700 nm. The second is an imaging polarimeter based on modifications to a three-tube colour television camera. This camera is already being used for multispectral imaging in the visible and UV, and the addition of polarization imaging will greatly enhance its utility. The information gained using these instruments will greatly enhance our understanding of why animals have evolved UV and polarization visual capabilities. The imaging polarimeter will also determine the polarization c haracteristics of relevant visual targets, such as planktonic prey, for which UV information is available.

为了了解紫外线和偏振视觉在动物中的可能功能，有必要能够观察和测量这些环境参数。由于我们在功能上对光环境的这些方面是盲目的，我们必须依靠仪器，如光谱辐射计和相机的可视化。我们也有必要了解这些环境参数如何随时间变化，因为许多动物随着年龄的增长而获得和失去这些视觉敏感性。本项目将为W和偏振视觉的研究提供两种新的仪器。第一种是照相机分光辐射计，可对300纳米至700纳米的太阳光谱进行无人值守的长期监测。第二种是基于对三管彩色电视摄像机的修改的成像偏振计。该相机已经用于可见光和紫外线的多光谱成像，增加偏振成像将大大提高其实用性。使用这些仪器获得的信息将大大增强我们对动物进化出紫外线和偏振视觉能力的理解。成像偏振仪还将确定相关视觉目标的偏振特性，例如可获得UV信息的浮游猎物。