| 摘要 |
<p>PROBLEM TO BE SOLVED: To facilitate the adjustment of a relative position between a light-emitting member and a collimator lens.SOLUTION: A method for manufacturing an optical unit 90 which includes a light-emitting member 91 having a light-emitting part 911 and a collimator lens 92 for making light emitted from the light-emitting member 91 parallel light includes a first step of adjusting the relative position between the light-emitting member 91 and the collimator lens 92, so that the center of gravity of the quantity of the light transmitted through the collimator lens 92, measured by center-of-gravity measurement means 10 becomes a predetermined position, and a second step of adjusting the relative position between the light-emitting member 91 and the collimator lens 92, so that the contour of the light transmitted through the collimator lens 92, imaged by imaging means 20 becomes a predetermined contour, after the first process.</p> |
