The miniaturization techniques of optical remote sensors

The miniaturization of the optical remote sensors is needed for the development of remote sensing. According to the available techniques several means of miniaturization are presented. From the view of the imager, combining the TDI CCD with the technique of sub-pixel imaging is advantageous to get high resolution and high F numbers. From the view of the optical system, the aspheric and reflective optical system is advantageous in miniaturization and lightweight of system. Moreover two new types of optical elements are presented, which are binary optical element and fiber optic taper. It is analysed and shown that they can be used to miniaturize optical system. Finally, some plans of miniaturization are proposed.