• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Optica pura y aplicada >Freeform optics adapted to the design of spatial instrumentation for Earth observation
【24h】

Freeform optics adapted to the design of spatial instrumentation for Earth observation

机译：自由形式光学器件适用于地球观测的空间仪表设计

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Freeform surfaces have been introduced in the optical design of a two-mirror Cassegrain telescope forEarth observation purposes. The application requires two field positions at the image plane withminimum aberrations where two micro spectrometers (HAMAMATSU C12880MA) shall be placed.These micro spectrometers are small and compact devices that incorporate the slit, a concavediffractive element and the CMOS sensor in the same component. Although these are very smallcomponents their position at the image plane are slightly deviated from the optical axis, where it iswell known minimum aberrations occurs for classical optical systems. Freeform surfaces areintroduced to correct those aberrations, mainly astigmatism and coma, for the specific fieldsdetermined by the positions of the micro spectrometers. Nodal Aberration Theory (NAT) will be usedto determine the mirrors surface deformation as a set of ?-polynomials calculating, at the same time,the effects of such deformations on the total aberrations.
机译：在两个镜子Cassegrain望远镜前部观察目的的光学设计中已经引入了自由造就。该应用需要在图像平面上有两个场位置，其中应放置两个微光谱仪（Hamamatsu C12880MA），微光谱仪是小型且紧凑的装置，其包括狭缝，凹形焦点和CMOS传感器在同一部件中。尽管这些是非常小的，但它们在图像平面上的位置略微偏离光轴，而是普通的光学系统是完全已知的最小像差。对于通过微光谱仪的位置的特定的特定，透镜精度校正了这些像差，主要是散光和彗形像曲面。节点像差理论（NAT）将用于确定镜子表面变形作为一组？-Polynomials计算，同时，这种变形对总像差的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号