| 摘要 |
<P>PROBLEM TO BE SOLVED: To correct an optical aberration by deforming the surface of a reflective mirror into a smooth configuration with a simple constitution. <P>SOLUTION: The reflective mirror device is provided with the reflective mirror for reflecting light, a bulkhead unit for forming a plurality of airtight air chambers between the reflective mirror and itself, and an regulating device for regulating an air pressure in at least one air chamber among the plurality of air chambers. <P>COPYRIGHT: (C)2007,JPO&INPIT |
