Non-Isothermal Glass Moulding Of Complex Led Optics

This research introduces a new replicative glass manufacturing approach, namely, non-isothermal glass moulding (NGM)in which glass preforms are reheated and moulded into its final shape. New, flexible mould concepts are introduced to account for the optics' ever-increasing complexity. Besides, alternative mould materials in combination with ultra-precision mould manufacturing technologies, namely, ultra-sonic assisted diamond turning are used to guarantee the highest form accuracy of the used moulding tools. The key to success for a fast time to market is the integration of FEM simulation at the early stage of the process development, which is also presented.