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微透镜阵列由于具有质量轻、结构小、视场大、分辨率高等优点,被广泛应用于光学领域.微注塑成型是实现其低成本批量生产的主要方法.如何高效、高精度、低成本加工模芯一直是研究的重点与难点.本文在传统微透镜阵列加工路径基础上,提出了一种正弦过渡加工路径,并对其过渡正弦的振幅和波长进行了分析,该方法有效避免了传统加工路径的不连续与突变问题.进行了正弦过渡路径优化设计和实际对比加工实验,实验结果表明该路径优化方法能有效地消除加工表面纹理,提高表面质量和加工效率.
Micro-lens array is widely used in the field of optics due to its advantages of light weight, small structure, large field of view, high resolution, etc. Micro-injection molding is the main method to realize low-cost mass production. How to process with high efficiency, high precision and low cost The core of the mold has always been the research focus and difficulty.In this paper, based on the processing path of the traditional microlens array, a sinusoidal transition machining path is proposed, and the amplitude and wavelength of the transition sinusoid are analyzed. This method can effectively avoid the traditional processing Path discontinuities and abrupt changes.The optimal design of sine transition path and actual contrast machining experiments are carried out.The experimental results show that this path optimization method can effectively eliminate the surface texture and improve the surface quality and processing efficiency.