非球面玻璃鏡片是數位相機與照相手機的關鍵零組件，在需求量與畫素逐年升高的情況下，製作非球面玻璃鏡片的傳統方法已經無法提供足夠的產量，而模造玻璃技術具有高解析度、穩定性佳、量產性高等技術上的優勢，具有極高之競爭力與替代性。
目前業界已具有量產模造式非球面玻璃鏡片的能力，但是對模造過程中預型體的變化尚未有進一步的瞭解，因此只能由成形鏡片分析缺陷原因。本研究利用線上觀測技術觀察預型體成形至鏡片的過程中，發現預型體有不同的變化情形，影響的原因有很多，包括溫度梯度、表面能、玻璃特性與傳熱方式等。
本研究以紅外線加熱燈管維持環境溫度並使用熱風槍直接加熱預型體的加熱方法使球胚成形時，不僅改善熱風分佈不均勻的問題，並抑制了失透現象、表面缺陷與氣泡等不良影響，因此並不影響球胚成形性與光學特性，並有效降低模仁工作溫度和所需加熱時間，增加模仁及其鍍膜之壽命，且進一步探討模仁與預形體之間的溫度差異對模造玻璃成型性之影響。

Aspheric lens is one of the most important components of camera and of camera phone, now it is in high demand and pursues higher image quality each year. Therefore supplier can not provide enough aspherical lenses by traditional glass molding technology. The molding glass technology has advantage in high resolution, high stability and mass production, and so on.
Presently, supplier in Taiwan all has ability to provide mass production of aspheric lenses, but they do not realize further variations of preform during processing of glass molding. Cause Researchers analyze lens defects by results. Hence, this research observes glass molding process from preform to lens by observation system. There are different variations of preform by temperature gradient, surface energy, glass property, heat transfer, and so on.
Multi-heating method combines the infrared heater to maintain environment temperature with the hot air generator that was employed to heat the preform directly in this research. The method not only improves unbalance flow but also resists Devitrification, surface defects and bubbles in lens, and thus the formability and optical character of lens are not affected by multi-heating method, and also decrease mold temperature and heating time, and increase the life of mold and coating. Temperature difference between the mold and preform, which formability, was further discussed in this research.

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