Prototype carbon fiber composite deformable mirror
Prototype carbon fiber composite deformable mirror
复制标题
碳纤维复合材料变形镜原型
DOI：
10.1117/1.2779337
复制
发表时间：
2007
影响因子：
1.3
通讯作者：
G. Evans
中科院分区：
文献类型：
--
作者：
S. Kendrew;P. Doel;D. Brooks;A. M. King;C. Dorn;C. Yates;R. M. Dwan;I. Richardson;G. Evans
对主动和自适应光学新技术的研究对于确保下一代天文台设定的苛刻科学目标所需的性能至关重要。无论是在太空还是在地面，超轻且热稳定的可变形光学器件的潜在增益都很高。表面质量、形状和操作过程中的高稳定性是此类镜子的重要标准。 2006 年，我们报告了原型碳纤维增强聚合物 (CFRP) 可变形反射镜的设计和制造的初步结果，包括对具有刚性背衬结构和致动器阵列的反射镜组件的描述，以及对系统的广泛表征。在这里，我们讨论动态测试和影响函数测量的结果以及方法的细节。影响函数形状与有限元分析预测相当一致，证实了有限元方法作为精密光学系统设计辅助工具的适用性。虽然这项技术仍然存在问题，但我们的结果突出了一些重要问题，并为进一步研究提供了有用的指导。
Research into novel technologies for active and adaptive optics is essential to ensure the required performance for the demanding science goals set for next-generation astronomical observatories. Both in space and on the ground, the potential gain from ultralightweight and thermally stable deformable optics is high. Surface quality, form, and a high level of stability during operation are important criteria for such mirrors. In 2006 we reported our initial results of the design and manufacture of a prototype carbon fiber reinforced polymer (CFRP) deformable mirror, including a description of the mirror's assembly with a stiff backing structure and actuator array, and an extensive characterization of the system. Here we discuss results of dynamical testing and influence function measurements as well as details of the methodology. Influence function shapes showed reasonable agreement with the finite element analysis predictions, confirming the suitability of the finite element method as a design aid for precision optical systems. While problems remain with this technology, our results highlight some important issues and provide useful guidelines for further research.