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首页> 外文会议>Integrated modeling of complex optomechanical systems >The optimization of the opto-mechanical performance of the mirror segments for the E-ELT.
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The optimization of the opto-mechanical performance of the mirror segments for the E-ELT.

机译：E-ELT的反射镜段的光机械性能的优化。

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ESO is preparing to build the E-ELT which will be the largest optical telescope in the world. Its primary mirror will be 039.3 m and will consist of nearly 1000 hexagonal segments of 1.2 meter width. Each segment is to be supported by the same structure although the segments vary in size and shape, hence this will cause variable surface deflection. Its support structure must guarantee a maximum surface form error of 30 nm rms independent of the segment orientation and environmental temperature. Measures, such as mass balancing and active surface form compensation are needed to compensate for these effects. To meet the main optical and mechanical performance requirements, numerous FEM analysis runs have been made. Dedicated software was used to calculate mirror deformations under mechanical loads and to express these in Zernike modes. Especially this tool proved to be very powerful in proving that the optical surface form requirements could be met for all different sized mirror segments.
机译：ESO正在准备建造E-ELT，它将成为世界上最大的光学望远镜。它的主镜为039.3 m，将由1.2米宽的近1000个六边形片段组成。尽管每个段的尺寸和形状各不相同，但每个段都应由相同的结构支撑，因此这将导致可变的表面变形。其支撑结构必须确保最大的表面形状误差为30 nm rms，而与节段的方向和环境温度无关。需要采取诸如质量平衡和有效表面形状补偿之类的措施来补偿这些影响。为了满足主要的光学和机械性能要求，进行了许多FEM分析运行。专用软件用于计算机械载荷下的镜面变形，并以Zernike模式表示这些变形。尤其是，该工具在证明可以满足所有不同尺寸的镜段的光学表面形状要求方面非常强大。

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