| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical element array location detecting device which can obtain a real-time activity performing an adjustment during a measurement, wherein the measurement for dot positioning between a plurality of the optical element arrays and focal depth measurement of the dot are performed using a different device from a product body. <P>SOLUTION: The optical element array location detecting device detects the focal depth, giving the distance from the light emission point of a light-emitting element to a light-receiving face, and detects the positional discrepancy of a knot between the optical element arrays, connecting the plurality of the optical element arrays arranged side by side the plurality of the light-emitting elements with in straight-line shape. The optical element drive means is made to selectively light the plurality of the light-emitting elements. The light-receiving element, arranged opposite to the optical element array, receives a beam emitted by the light-emitting element. The image processing means displays, by obtaining the focal depth from an attention value of a beam profile of the image data input from the light-receiving element or from a resolution of the image data. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
