Recently, Nanjing Institute of Astronomical Optics & Technology (NIAOT) successfully completed upgrading of 2.4m coater and passed the acceptance test.
Up to now, more kinds of optical films including metal reflective film and enhanced metal reflective film for large aperture optical mirror as well as film for modified layer of SiC mirror have been finished.
The coater can provide all kinds of optical film for large mirror within aperture of 1.7 meter.
Figure 1: Cleaning before coating modified layer of SiC mirror
Figure 2: reflective film completed for 1.5m mirror
Figure 3: Upgrading coater with aperture of 2.4m
