Research On Dispersion Variation Of F/ZF Optical Glass After Precision Annealling

Precision annealing in optical glass production is essential to optical glass, annealing process decided to the optical property of optical glass, in hence, we must control it accurately. We've found the optical glass which include PbO, it's dispersion changed after annealing, in addition, this change varied according to the content of PbO. As intermediate of glass network, PbO has different position, it lead to the variation of optical constant. In this article, we will discuss this variation, and how to control it within it's limits in glass production.