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近十年来,大视场星载红外望远镜系统设计受焦平面技术发展的推动亦有进展。七十年代的扫描探测器线列正向八十年代的两维镶嵌阵列过渡,从而可以考虑将系统放在地球同步轨道高度的卫星上,进行连续复盖全球的观察。另外,新型焦平面用的替换的探测器材料和致冷系统的研制成功,使能考虑在2～14微米选定的波长上进行多波段应用。这十年在探测器/焦平面工艺方面的进展要求光学系统也作相应的变化(见表1)。要求的孔径尺寸至少从0.5米增加到1米,
In the past ten years, great-field satellite-borne infrared telescope system design has been promoted by the development of focal plane technology. The seventies scanning detector arrays are transitioning into the two-dimensional mosaic arrays of the 1980s so that the system can be considered for global coverage of continuous geosynchronous orbit altitude satellites. In addition, the successful development of alternative detector materials and refrigeration systems for the new focal plane enables the consideration of multi-band applications at selected wavelengths of 2 to 14 microns. The decade’s progress in detector / focal plane technology required changes in the optical system (see Table 1). The required pore size increases from at least 0.5 m to 1 m,