| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a supporting stand for supporting an optical axis path between a light source of an exposure device and a main device for resolving various problems in a conventional technique. <P>SOLUTION: The supporting stand comprises one or more H-shaped steel supporting the optical axis path between the main device and an accessory device of the exposure device, a supporting element provided to a first position of the H-shaped steel, a signal emitter provided to a second position of the H-shaped steel and a signal receiver provided to a third position of the H-shaped steel. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
