This paper aims to research a unique non-isothermal molding technology (NGMP) which is an attractive and creative
manufacturing method of fabricating ultra-precision and high-quality glass components. It has numerous advantages
such as high efficiency, low cost and being mass production of glass lenses in industry. This technology is an ultra
precision manufacturing process and suitable for multi-scale precision glass lens, lens array and glass micro-structure.
This technology overcomes the disadvantages of traditional grinding and polishing technology such as long time
production cycle, profligacy of raw materials, single-piece production and difficulty to produce an aspherical lens or
arrays. The characteristics of NGMP are studied by comparing with the traditional IGMP. Residual stresses inside the
glass lenses are also studied by numerical simulation. Based on the experiments and simulations results, a new
compression molding process is proposed. Once the glass lens is fabricated by compression molding, an annealing
process can be used to reduce the residual stresses in the glass lens.