| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a reflector (sub-mirror) manufacturing method for manufacturing a reflector (sub-mirror) by an air-pressure molding method, in which the reflector (sub-mirror) can be prevented from being cracked or broken. <P>SOLUTION: The reflector (sub-mirror) manufacturing method comprises: a tubular member preparation process; an expansion part formation process for forming an expansion part partially expanded on a tubular member by heating the tubular member, charging the heated tubular member into a molding die, and then applying inner pressure by inert gas so that the inner surface shape of the portion in the tubular member corresponds to the reflection surface of the reflector (sub-mirror); a reflector base material formation process (sub-mirror base material formation process) for forming a reflector base material (sub-mirror base material) by cutting off the tubular member on which the expansion part is formed; a micro-crack removing process for removing micro-cracks generated on the cutting surface of the reflector base material (sub-mirror base material); and a reflection layer formation process for forming a reflection layer on a portion, which becomes a reflection surface, out of the reflector base material (sub-mirror base material). <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
