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Method for optical characterization of large mirrors by recording the reflected light from a star.

机译:通过记录来自星星的反射光来对大镜子进行光学表征的方法。

摘要

Process for the optical characterization of large mirrors by recording the reflected light from a star.; Process for the optical characterization of large mirrors by recording the reflected light from a star. By registering with a CCD camera reflected light from a star in the mirror, the components of the normal vector of the mirror at numerous points are determined. For this camera, located in the focal region or region of concentration of the mirror and pointing it takes images of the mirror itself recording the bright areas due to the reflection of light from the star. Several methods to easily get a large number of images and thus high accuracy in the characterization are described. The method enables full optical characterization of any mirror whose focal length and size are much larger than the input diaphragm of the camera.; In particular, this method solar concentrators to measure the spatial distribution of light intensity in the region of concentration and determine offset errors, and test the quality of canting faceted mirrors.
机译:通过记录来自星星的反射光,对大镜子进行光学表征的过程。通过记录来自星星的反射光,对大镜子进行光学表征的过程。通过向CCD相机记录来自镜中恒星的反射光,可以确定镜在许多点的法向矢量的分量。对于此相机,它位于镜子的焦点区域或集中区域并指向,它拍摄镜子本身的图像,记录由于来自恒星的光反射而产生的明亮区域。描述了容易获得大量图像并因此在表征中具有高精度的几种方法。该方法可以对任何焦距和尺寸远大于相机输入光圈的镜子进行全光学表征。尤其是,这种太阳能集中器方法可测量集中区域内光强度的空间分布并确定偏移误差,并测试倾斜多面镜的质量。

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