| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a manufacturing method and apparatus for an optical head unit, in which the luminance center position emitted from a semiconductor laser is easily aligned with a target position with high precision. <P>SOLUTION: When the optical axis position of the semiconductor laser relative to a collimator lens is adjusted in a manufacturing stage for the optical head unit, a luminance distribution measuring imaging device 70 picks up an image while an aperture 57 is disposed behind the collimator lens to find the luminance center position based upon a luminance distribution of part of collimated luminance flux which includes the center. Then the position of the semiconductor laser is adjusted so that the luminance center position meets the target position. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
