| 摘要 |
PROBLEM TO BE SOLVED: To provide a joining method which can reduce a manufacturing cost in terms of manufacturing man-hours and a manufacturing facility when fusion-joining an outer lens and an inner lens which are arranged while being separated from each other to a housing by the irradiation of laser light.SOLUTION: A main upper jig 55 and an auxiliary upper jig 60 are employed to fusion-joining by the laser irradiation of an inner lens 10 to an inner housing 30, and the main upper jig 55 is employed to fusion-joining by the laser irradiation of an outer lens 20 to an outer housing 40. Therefore, in the fusion-joining of the inner lens 10 to the inner housing 30 and the fusion-joining of the outer lens 20 to the outer housing 40, there is no necessity for changing jigs each time since the single main upper jig 55 is usable in common. |
