12

2023

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07

Optical glass and glass lens blanks


There is a direct relationship between the quality of glass lens blanks and molded products. Most optical glass can be used for molding. However, optical glass with a high softening point, due to its high molding temperature, slightly reacts with the mold, resulting in a short service life of the mold.

From the perspective of easy selection of mold materials and the ability to extend the service life of molds, optical glass suitable for low temperature (around 600 ℃) molding should be developed. However, the development of glass suitable for low-temperature molding must meet the requirements of being able to manufacture glass lens blanks cheaply and not containing substances that pollute the environment.