| 摘要 |
A method for assembling a lens module includes the following steps. Firstly, a lens barrel, at least one optical element, a spacer ring and a fixing ring are provided. The spacer ring includes an annular projection along a circumference of the spacer ring. The fixing ring includes a pipe-shaped film and a glue encapsulated in the pipe-shaped film. The film is made of polylactic acid and light decomposition agent. Secondly, the at least one optical element and the spacer ring are put into the barrel, with an annular groove defined between the projection and the barrel. Thirdly, the fixing ring is placed in the groove. Fourthly, the fixing ring is illuminated and the film is melted to let the glue fill the groove. Finally, the glue is cured to fix the spacer ring and the at least one optical element in the barrel. |
