NASA空间望远镜的主要光学元件——巨大的主镜坯件已交付给珀金·埃尔默公司去进行长达二年的磨研和抛光。科宁·格拉斯公司生产了这个直径为8米的坯件。除了大型精密光学系统外,光学望远镜装置还有稳定天文目标的专门敏感器和一个安放五个科学仪器的结构,为了控制望远镜在轨道上的15年期间的始终校准,每一科学仪器都得对着望远镜的焦距平面和敏感器。 The main optical element of the NASA Space Telescope, the huge primary mirror blank, has been delivered to PerkinElmer for up to two years of grinding and polishing. Corning Glass produced the blank with a diameter of 8 meters. In addition to the large precision optical system, the optical telescope unit has a dedicated sensor for stable astronomical purposes and a structure for five scientific instruments. To control the telescope’s orbital calibration consistently over a 15-year period, each scientific instrument has to The focal plane of the telescope and the sensor.