H∞ robust tracking control for the image stabilizing system of optical telescope

The image stabilizing system is configured extensively in many kinds of optical instruments, such as cameras and telescopes.A vibration-reduction method based on the fluid prism was proposed (Sato et al. 1993), and to the digital image, methods based on digital image processing were proposed (Uomori et al. 1990, Ko et al. 1998). Solid lens for vibration-reduction are used in this paper.