摘要
设计了一种长焦距、大视场、离轴望远镜光学系统 ,采用的TMA(threemirroranastigmat)系统 3个反射面都是二次曲面 ,将 3块镜面都离轴和倾斜放置 ,从而避免了中心遮拦的影响 ,系统的视场为5 .0°× 0 .4°、焦距为 15m和总长度为f′/ 3.5～f′/ 3.0 ,像质达到了衍射极限。
A kind of three mirror anastigmat (TMA) was described. All the system surfaces are uncoaxis with the off-axis telescopes, and avoid the affection of the central obstruction. The system is 15 m focal length, and 5.0°×0.4° field of view, while the total length of the system is f'/3.5-f'/3.0. The evaluation shows that the image quality is nearly diffraction limit.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2003年第7期687-689,共3页
Journal of Optoelectronics·Laser
基金
ThisworkwassupporedbytheNational(699780 2 0 )
关键词
TMA
焦距
视场
离轴望远镜
光学设计
Design
Diffraction
Focusing
Image quality
Mirrors
Optical design
Telescopes
