| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image acquiring method and an apparatus for acquiring sharp and adequate images by always imaging components in the focusing state, even if the components are actually fluctuated in the thickness. <P>SOLUTION: An attracting nozzle 13a is moved downward to obtain quantity of downward movement Z1 and Z2 of the attracting nozzle when the front end of nozzle and the imaging surface of component 11 are crossing the laser beam 14c projected from a laser beam emitter 14a. Since such Z1-Z2 correspond to thickness of the components, the attracting nozzle 13a is moved downward in accordance with the detected component thickness until the imaging surface (lower surface) of component is matched with the focusing surface of the imaging apparatus 16. Under this condition, a component 11 is imaged with the imaging apparatus 16 so that the component 11 is always imaged in the focusing state to obtain sharp and adequate image even if thickness of component 11 is actually fluctuated. <P>COPYRIGHT: (C)2007,JPO&INPIT |
