摘要
在转镜分幅相机中,有效相对孔径一般部比较小,尤其在时间方向上,由于受排透镜光栏宽度的限制,有效相对孔径就显得更小。因而动态衍射对空间分辨率的影响较大。本文试图从提高时间方向上动态空间分辨率出发,从理论上分析和探讨提高动态分辨率的可能性。分析结果证明,在适当扩大孔径光栏宽度后,在时间方向上的动态空间分辨率可提高15～20％。这一结果对改善转镜分幅相机的成像质量是有实际意义的。
The effective relative aperture is generally rather small in a rotating-mirror camera, especially in time direction, it is even smaller due to the width limitation of relay lens stop Consequently, the dynamic spatial resolution is considerably influenced by dynamic diffrac -tiom. This paper tries to analyse theoretically and to go further into the possibility of improving the dynamic spatial resolution based on its improvement in time direction. The results show that the dynamic spatial resolution in time direction has been improved by 15-20% when the aperture stop width is properly enlarged. It is significant to improve imaging quality in rotating-mirrpr cameras.
关键词
转镜相机
空间
分辨率
动态
Rotating mirror high speed cameras
Dynamic spatial resolutions
