| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a technology of precisely adjusting a relative positional relationship between a light emitting element and a non-erect equal-magnification microlens in a line head that images a light beam from the light emitting element by means of the microlens. <P>SOLUTION: In a positional information acquisition process, positions of one or more target elements in the plurality of elements on an optical axis are acquired. In an optical axis adjustment process, a relative positional relationship between an element substrate and a microlens array is adjusted such that a distance in a face between a position where a position of the target element given by the positional information is projected on a virtual vertical face and a position where a position of an image of a light beam emitted from the target element is projected on the virtual vertical face by the microlens, satisfies a predetermined condition when a virtual face perpendicular to the optical axis of the microlens is defined to be the virtual vertical face. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
