Recently, Zhang Minghui, a research team from the Chinese Academy of Sciences Shanghai Institute of Silicate, combined with a variety of water removal processes, prepared fluorotellurite glasses with low hydroxyl content. This new type of glass can be used to prepare non spherical and complex surface glass lenses through molding technology, and has broad application prospects in fields such as mobile phone camera lens modules and optical instruments.

Research has shown that the new fluorotellurite glass is an excellent type of broad spectrum high transparency glass. Based on its excellent glass forming ability, fluorotellurite glass has the ability to prepare large-sized materials, which can meet the needs of wide spectrum and high transparency glass lenses of different sizes. It is understood that technological innovation is of great significance for optimizing the performance of glass in the glass melting process.

picture

Fluorinated tellurite glass at (a) 300-2500 nm,

(b) 2.5-10 μ m transmittance spectrum

“Wide spectrum high transmittance glass has important applications in optical windows, smartphone lens groups, security devices, optical communication, and other fields due to its excellent transmittance in the visible light, near-infrared, and mid infrared bands. Researcher Zhang Minghui introduced that in the visible light, near-infrared, and mid infrared bands, it simultaneously has high transmittance, lower softening temperature and mechanical hardness, a wide operating temperature range, and can be prepared in large sizes, which is an important influencing factor for this type of glass to obtain high-end optical system applications.”.

In addition, fluorotellurite glass combines the high permeability of fluoride and the good glass forming ability of tellurite, providing a good compositional basis for glass molding. The relevant research results were published in the internationally renowned academic journal Journal of Non crystalline Solids, and the research work was funded and supported by the Youth Innovation Promotion Association of the Chinese Academy of Sciences, the China Space Science Project, the Shanghai Young Science and Technology Rising Star Talent Project, etc.