| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent misalignment in a light emitting part, and also improve product quality by mounting an LED array with the center of gravity position of a light emission pattern as a reference. SOLUTION: A first LED array 1 is mounted on a substrate 7 by electrodes 4 for dots and common electrodes (a) and b, so as to be connected with common electrodes on the back face of a collet 3 and light emitting part electrodes at the both ends. Then, suitable currents are allowed to flow so that the light emission of the light emitting parts 2 at the both ends of the LED array 1 can be realized, and light emission patterns E are captured by a camera as image recognition patterns, and center of gravity positions G1 and G2 of the light emission patterns E of the light emitting parts are obtained. A straight line L1 connecting those points is obtained from each obtained center of gravity position and used as an ideal reference line. Similarly, the light emission patterns E of a second LED array 1 are captured as image recognition patterns, and center of gravity positions G3 and G4 of the light emitting parts 2 are obtained, and a straight line L2 connecting those points is obtained from the center of gravity positions. Then, the first LED array 1 and the second LED array 1 are arranged, so that the reference lines L1 and L2 are aligned, and the adjacent center of gravity positions G2 and G3 are arranged with equal distance.</p> |
