Patent ID: 7540080
Filing Date: 2009-06-02
Classification: G02B,H01S,Y10T

Abstract:
1. A method for mounting a light emitting element by suctioning a first part serving as a light emitting element having an optic axis toward the horizontal direction at the lower end portion of a suction head, and mounting the first part while aligning the first part with a second part held on a stage, the method comprising the steps of: preparing a first optical system disposed above said suction head; preparing a second optical system disposed below said stage such that the optic axis thereof and the first optical system generally face each other; and preparing a third optical system disposed such that the optic axis thereof and the first optical system are generally orthogonal; inserting the suction head between the first optical system and the second optical system, capturing a head reference mark, which is appended to the suction head and can be recognized from above, using the first optical system, capturing the first part suctioned at the suction head using the second optical system, making the first part emit light, and recognizing the optic axis thereof using the third optical system; inserting the stage between the first optical system and the second optical system, capturing the second part held on the stage using the first optical system, and also capturing a stage reference mark, which is appended to the stage and can be recognized from below, using the second optical system; calculating the relative position between the first part and the suction head using the image information from said first optical system, second optical system, and third optical system, and the relative position between the second part and the stage; moving said suction head and stage to a mounting position, recognizing said head reference mark and stage reference mark in the mounting position using said first and second optical systems, and subjecting at least one of 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 have a predetermined relation; and mounting the first part and the second part following said position correction.