Patent ID: 8015696

Claim:
A device for mounting a light emitting element by mounting a first part serving as a light emitting element having an optic axis toward the horizontal direction while aligning the first part with a second part, the device comprising: a suction head for suctioning the first part at the lower end portion of the suction head, and having a head reference mark which can be recognized from above; a stage for holding the second part at the upper end portion of the stage, and having a stage reference mark which can be recognized from below; a driving mechanism for relatively moving said suction head and stage in the X, Y, and θ directions; a first optical system, which is disposed above said suction head, for capturing the second part held on the stage and the head reference mark; a second optical system, which is disposed below said stage so as to generally face the optic axis of the first optical system, for capturing the first part suctioned at the suction head and the stage reference mark; a third optical system, which is disposed such that the direction of the optic axis thereof is generally orthogonal to the first optical system, for capturing the optic axis on the basis of light emitted by the first part; a calculating device for calculating the relative position between the first part and the suction head, and the relative position between the second part and the stage using image information from said first through third optical systems; a control device for recognizing said head reference mark and stage reference mark using said first and second optical systems with said suction head and stage in a mounting position, subjecting the suction head and the stage to position correction using said position information and said relative position information such that the positions of the first part and the second part are in a predetermined relation.