Achieve Infrared Performance of Large Sized Aspheical Lens via Ultra-precision Grinding
In order to avoid the inherent shortcomings of traditional abrasive polishing for infrared aspherical lens, such as low efficiency and poor product uniformity, the ultra-grinding technology for large sized aspheical lens with excellent infrared performance was investigated.The multispectral CVD zinc sulfide for aspherical lens with diameter of 93.5mm was achieved via ultra-precision grinding with ultra-precision surfaces, low damage and high efficiency.The form accuracy of surfaces is about P V∶ 0.8μm, the roughness Ra is below 10nm.Most important, the light transmittance of ground infrared aspherical lens is between 70% and 80% in 2~10μm wavelengths without coating or other increased transmission.
Ultra-precision grinding Aspheical lens Infrared performance
Qingliang Zhao Bing Guo Bing Chen
Center for Precision Engineering, School of Mechatronics Engineering, Harbin Institute of Technology College of Mechanical and Electrical Engineering, Hunan University of Science and Technology Xiangta
国际会议
长沙
英文
49-53
2016-11-04（万方平台首次上网日期，不代表论文的发表时间）