| 摘要 |
PROBLEM TO BE SOLVED: To facilitate focus adjustment of images and to improve the accuracy of focusing and reproducibility. SOLUTION: Focus adjustment in an image measurement device is realized by driving a Z axis driving system through a CPU by an operation means such as a mouse or the like. Thus, the contrast of the image of a work displayed on a CRT display is changed. A contrast value is displayed on the CRT display by a graphic indicator 51. The graphic indicator 51 is displayed in a level chart to be 100% for the peak value of the contrast value C. |
