Another core technology in China achieved a major breakthrough: Europe and the United States has been shaken

Tell you a truth------WW of those who hardly sophisticated semiconductor processing equipment was developed, were imported from Europe. But this does not prevent you do WW semiconductor technology development level. Say this only prompted for the: to build a high level of onboard cameras are well done. Rather than explore its manufacturing processes or equipment. (The fighter ten for a typical example) China remote sensing 8 main load including length optical camera. Long stay up-something. don't, you really want to be the other three institutes in from in the first place.

China has access to a core of key technology breakthrough: Europe was stunned! In off-axis optical system for the movement against the advanced manufacturing technology to achieve a major breakthrough for space optical remote sensor using the leap-forward development and lay a solid foundation.

A few days ago, this from the CAs Changchun Institute of optics and completion of major science and technology achievements through the identification. Since the 90 's of the last century, of space optical remote sensors in the field of defence, national economy needs rapid growth. How to solve the contradiction between high resolution and large field of view, has been the bottleneck of high resolution studies of space optical remote sensor. Off-axis movement against the optical system can simultaneously realize the long focal length and wide field of view, and there is no Center block, high modulation transfer function, is recognized for the development of a new generation of space optical systems. However, because of their structural complexity and asymmetry, making extremely difficult, need to develop more advanced processing, testing and assembling technical support. Manufacturers in Europe and off-axis optical system for the movement against the key technologies of manufacturing technology as the core, has made breakthroughs in the late 90, developing in-orbit performance of optical remote sensing satellites.

Given that the technology is of great significance in the field of defence, national economy, Europe and the United States adopted strict security measures. Changchun Institute of optics from "ten five" began to expand off-axis optical system of the movement against the technology.

After 10 years of hard spell Bo, Zhang Xuejun led of research team in "away from axis movement against the optical advanced manufacturing technology" research Shang achieved has to computer control optical surface forming technology for core, covers to large caliber away from axis non-spherical automatically processing equipment, and large caliber high precision away from axis non-spherical processing technology technology, and away from axis high precision non-spherical detection technology, and away from axis movement against the high precision system loaded adjusting technology for core of major breakthrough. Successful development of the first in China with completely independent intellectual property rights of off-axis aspheric surface NC machining center.

The device uses integrated design solutions, grinding, polishing, and online profile measurement units into one, off-axis aspheric surfaces can be achieved automatic processing, comprehensive specifications at the international advanced level. Realization of large diameter off-axis aspherical optical surfaces with high precision the deterministic efficient processing and surface profile error of convergence, make an efficient model of deconvolution and Adaptive Path optimization algorithm, systematically building the large diameter off-axis aspheric surface of silicon carbide CNC machining methods, models and software. Presented for the first time and the establishment of computer generated hologram detection (CGH) off-axis aspheric design and construction of theory model and method, detection accuracy in the international leading level; in addition, established a non-ball face aperture mosaic theory model, has made the construction application effect was good.

Three independent measurements off-axis aspheric surfaces can be cross-checked to ensure measurement accuracy, and improves reliability. Was first proposed at the international off-axis optical system of movement against the baseline alignment technology, achieving co-anchor of the primary mirror, three mirror, assembling the system from 18 down to 6 degree of freedom, efficiency and accuracy greatly improved alignment. Based on calculated total baseline alignment technology of the second generation of holographic technology.