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首页> 外文会议>Conference on emerging digital micromirror device based systems and applications; 20090128; San Jose, CA(US) >Application of digital micromirror devices to vision science: shaping the spectrum of stimuli
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Application of digital micromirror devices to vision science: shaping the spectrum of stimuli

机译：数字微镜设备在视觉科学中的应用：塑造刺激光谱

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摘要

In vision and color research, it is often desirable to precisely control the spectral content of light stimuli. Some demanding research applications require replicating or producing natural or novel complex spectral illumination. However, complex spectral distributions, common in the real world, often prove difficult to simulate in the lab. Past researchers have combined LCD technologies with broadband sources and wavelength dispersing elements, such as gratings, to produce approximations to natural distributions. These devices have been limited in contrast, temporal resolution, and precision by the nature of the LCD itself. We show here how a spectrally-dispersed broadband source modulated with Digital Light Processor (DLP) technology provides for rapid and precise spectral shaping of visual stimuli at intensity and precision levels previously unattainable using other light modulating technologies, and present a sample application consisting of data from color vision experiments designed to probe the visual system's differential response to narrow versus broad band color stimuli.
机译：在视觉和色彩研究中，通常需要精确控制光刺激的光谱含量。一些要求苛刻的研究应用需要复制或产生自然或新颖的复杂光谱照明。但是，现实世界中常见的复杂频谱分布通常很难在实验室中模拟。过去的研究人员已经将LCD技术与宽带光源和波长分散元件（例如光栅）结合在一起，以近似自然分布。这些设备的对比度，时间分辨率和精度受到LCD本身的特性的限制。我们在这里展示了使用数字光处理器（DLP）技术调制的频谱分散宽带光源如何以强度和精度水平快速，精确地对视觉刺激进行频谱整形，并展示了由数据组成的示例应用旨在观察视觉系统对窄带和宽带颜色刺激的差异响应的彩色视觉实验。

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