camera axis
1.In this paper, a TV camera scanning on-axis autoalignment device and methods of digital image processing used in DSW projection printer are presented.
5.The mirrors, in addition to being larger, are more aspheric and off-axis in order to meet the requirement of next generation space camera, which is commonly configured as three-mirror-anastigmat (TMA) to get both wide FOV and high resolution, and the required accuracy is more stringent.

