公开(公告)号：US20150266763A1

公开(公告)日：2015-09-24

申请号：US14306922

申请日：2014-06-17

Applicant: China Building Materials Academy

Inventor： Huifeng ZHAO ,  Chengkui ZU ,  Bin HAN ,  Yonghua LIU ,  Jiang CHEN ,  Yanhang WANG ,  Yangli JIN ,  Hua ZHAO

IPC: C03B5/033 ,  C03B5/225 ,  C03B5/42 ,  C03B5/187

CPC classification number: C03B5/187 ,  C03B5/0334 ,  C03B5/43 ,  C03B2201/60

Abstract: A vacuum melting furnace for infrared glass, includes an upper furnace body and a lower furnace body that can be connected with each other or isolated from each other. Vacuum melting of the infrared glass is achieved in the upper furnace body wherein the influence of water in the environment is eliminated. The vacuum negative pressure environments can promote separation of hydroxyl in the structure, which achieves removing of hydroxyl in the glass, and then discharging of the molten infrared glass is conducted at atmospheric pressure in the lower furnace body. By using the vacuum melting furnace for infrared glass, infrared glass with good spectrum transmission performance can be obtained with improved property stability and optical homogeneity, which facilitates the preparation and molding of large sized and special-shaped infrared glass products.

Abstract translation: 一种用于红外线玻璃的真空熔化炉，包括可彼此连接或彼此隔离的上炉体和下炉体。 在上部炉体中实现了红外线玻璃的真空熔化，其中水在环境中的影响被消除。 真空负压环境可以促进结构中羟基的分离，从而实现玻璃中的羟基的去除，然后在大气压下在下炉体中排出熔融的红外线玻璃。 通过使用红外线玻璃的真空熔化炉，可以获得具有良好光谱传输性能的红外线玻璃，具有提高的特性稳定性和光学均匀性，有利于大型和特殊形状的红外线玻璃制品的制备和成型。

公开(公告)号：US20250019291A1

公开(公告)日：2025-01-16

申请号：US18763841

申请日：2024-07-03

Applicant: CHINA BUILDING MATERIALS ACADEMY CO., LTD.

Inventor： Yanhang WANG ,  Tao HAN ,  Xianzi LI ,  Penghui YANG ,  Kun HE ,  Chengkui ZU

IPC: C03C3/062

Abstract: The present application relates to the technical field of glass, in particular to an optical glass and a preparation method and application thereof. The optical glass comprises the following oxide component with the following weight percentage content, La2O3: 30%-40%; Ga2O3: 15%-25%; Nb2O5: 8%-18%; TiO2: 5%-10%; HfO2: 5%-10%; Ta2O5: 5%-10%; SiO2: 5%-10%; BaO: 2%-6%; RF3: 1%-3%, R may be one or both of La and Ga; and C: 0.005%-0.02%. The optical glass has a refractive index equal to or greater than 2.0, an internal transmittance at 440 nm equal to or greater than 93%, and a water resistance stability of grade 1, and can be used in the fields of virtual reality, digital cameras and vehicle display.