The principle,injection process and parameters of moulding for the super miniature and high precision optical pickup unit(OPU)in a laser head were presented.

• 介绍了激光头中的OPU零件注射成型的原理、注射工艺和与其相关的工艺参数,分析了OPU零件的生产工艺,论证OPU零件的注射成型技术的可行性。