Metallic Mirror Experiment with 1.6 m Coating Machine | |
Wang jinfeng; Qiao liaoyun; Li xinnan; Cui xiangqun | |
2008-07-14 | |
Source Publication | Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation |
Volume | 7018 |
Issue | 7018 |
Pages | Vol.7018 51-1-8 |
Conference Date | 2008-6-23 |
Conference Place | Marseille, France |
Funding Organization | The International Society for Optical Engineering |
Publisher | SPIE |
Abstract |
We have produced a series of reflective mirrors using the newly installed 1.6m evaporation chamber at the Nanjing Institute of Astronomical Optics and Technology (NIAOT) of the National Astronomical Observatories of China. The main task of this equipment is to coat the mirrors of the LAMOST. The chamber have thermal evaporation system, electron beam source, ion beam source, quartz crystal deposition controller and optical monitoring system, so can evaporate all kinds of metal and oxide film and effectively control film thickness. Now, we have utilized this chamber to aluminize the mirrors of LAMOST primary mirror, the average reflectivity is above 89% in the wavelength range from 370nm to 900nm. Recently, we have completed the enhanced silver reflector experiment, by controlling the dielectric layers optical thickness, the reflectivity is increased from 370nm to 400nm. The average reflectivity of enhanced silver reflector is above 97% in the wavelength range from 370nm to 900nm. |
Keyword | Coating Reflectivity Uniformity Copper-based Silver Intensified Mirror |
Subject Area | 天文技术与方法 |
Document Type | 会议论文 |
Identifier | http://ir.niaot.ac.cn/handle/114a32/556 |
Collection | 会议论文 |
Recommended Citation GB/T 7714 | Wang jinfeng,Qiao liaoyun,Li xinnan,et al. Metallic Mirror Experiment with 1.6 m Coating Machine[C]:SPIE,2008:Vol.7018 51-1-8. |
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