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首页> 外文会议>Nonimaging optics: efficient design for illumination and solar concentration XIV >Real time 3D photometry
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Real time 3D photometry

机译：实时3D测光

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The photometry and radiometry measurement is a well-developed field. The necessity of measuring optical systems performance involves the use of several techniques like Gonio-photometry. The Gonio photometers are a precise measurement tool that is used in the lighting area like office, luminaire head car lighting, concentrator /collimator measurement and all the designed and fabricated optical systems that works with light. There is one disadvantage in this kind of measurements that obtain the intensity polar curves and the total flux of the optical system. In the industry, there are good Gonio photometers that are precise and reliable but they are very expensive and the measurement time is long. In industry the cost can be of minor importance but measuring time that is around 30 minutes is of major importance due to trained staff cost. We have designed a system to measure photometry in real time; it consists in a curved screen to get a huge measurement angle and a CCD. The system to be measured projects light onto the screen and the CCD records a video of the screen obtaining an image of the projected profile. A complex calibration permits to trace screen data (x,y,z) to intensity polar curve (I,αγ). This intensity is obtained in candels (cd) with an image + processing time below one second.
机译：光度和辐射度测量是一个发达的领域。测量光学系统性能的必要性涉及使用多种技术，例如Gonio光度法。 Gonio光度计是一种精密的测量工具，可用于照明领域，例如办公室，灯具头灯，聚光器/准直器测量以及所有设计和制造的与光配合使用的光学系统。在这种测量中，存在一个缺点，即无法获得强度极曲线和光学系统的总通量。在行业中，有一些好的Gonio光度计既精确又可靠，但是它们非常昂贵并且测量时间很长。在工业中，成本可能不太重要，但是由于受过培训的人员成本，测量大约30分钟的时间非常重要。我们设计了一个实时测量光度的系统。它由一个弯曲的屏幕和一个CCD组成，以获取巨大的测量角度。被测系统将光线投射到屏幕上，而CCD会记录屏幕的视频，以获取投射轮廓的图像。复杂的校准可以将屏幕数据（x，y，z）跟踪到强度极坐标曲线（I，αγ）。该强度以candels（cd）表示，图像+处理时间小于一秒。

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