关键词: 光学成像系统, 角振动, MTF, 隔振

Abstract:

This paper analyzed the influences of angular vibration on MTF in optical imaging systems. First, according to the characteristics of angular vibration, angular vibration was decomposed into linear vibration relative to the focal plane, and the relation between angular vibration and the linear vibration was established. Second, principle with the product of each individual MTF was the total MTF, the influences of angular vibration on MTF in optical imaging systems were derived. Finally, the various sources of angular vibration frequency were analyzed with practical engineering, and the methods reducing the angular vibration effects on image quality of the optical system were proposed. 

Key words: optical imaging system, angular vibration, modulation transfer function(MTF), isolation