Ge-Se-Te硫系玻璃非球面精密模压工艺研究  

Research on Precision Molding Process of Ge-Se-Te Chalcogenide Glass Aspheric Lens

作　　者：黄国雅 杨睿 陈超 吴劲松 邱超 吴梦 HUANG Guoya;YANG Rui;CHEN Chao;WU Jinsong;QIU Chao;WU Meng(Hubei New Huaguang Information Material Co.,Ltd.,.^iangyang 441057,China)

机构地区：[1]湖北新华光信息材料有限公司,襄阳441057

出　　处：《玻璃》2021年第8期8-13,共6页Glass

摘　　要：硫系玻璃是一种良好的消热差用红外用光学元件材料,广泛应用于红外热成像系统。通过口径f10.4 mm Ge-SeTe硫系玻璃非球面精密模压工艺试验研究,制备出面型精度满足设计要求(PV≤0.5 mm)的模压镜片。测试模压产品折射率和比重发现:模压后镜片折射率和比重都降低,且模压降温速率越快,模压镜片折射率和比重降幅越大,通过松弛理论以及外场方程分析了原因。Chalcogenide glass is a good material for infrared optical elements,which is widely used in infrared thermal imaging system.The precision molding process of 10.4 mm Ge-Se-Te chalcogenide glass aspheric lens was studied,and the molded lenses with surface precision meeting the design requirements(PV≤0.5μm)were prepared.It was found that the refractive index and specific gravity of the molded lens decreased after molding,and the faster the molded cooling rate was,the more the refractive index and specific gravity of the molded lens decreased.The reason was analyzed by relaxation theory and external field equation.

关 键 词：硫系玻璃 精密模压 非球面 

分 类 号：TQ171[化学工程—玻璃工业]