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Title:
EXPANSION-TYPE REFLECTION MIRROR
Document Type and Number:
WIPO Patent Application WO2005027186
Kind Code:
A3
Abstract:
An expansion-type reflection mirror has connecting members that are installed between extendable members constructing an expansion truss. Each connection member connects a portion corresponding to an antinode of and a portion corresponding to a node of a bucking mode occurring in extendable members when tensile force is applied to surface cable. Further, the surface cable is composed of inner surface cable and outer periphery surface cable that is joined to the outer periphery of the inner surface cable. Cable having high rigidity and whose length varies a little when tensile force varies is used as the inner surface cable. As the outer periphery surface cable, cable having lower rigidity than the inner surface cable and whose tensile force varies less than the inner surface cable when the length varies is used. Tensile force is applied from the expansion truss to the inner surface cable through the outer periphery surface cable to form a predetermined mirror surface shape.

Inventors:
HARADA SATOSHI (JP)
MEGURO AKIRA (JP)
ISHIKAWA HIRONORI (JP)
OZAWA SATORU (JP)
Application Number:
PCT/JP2004/013488
Publication Date:
May 06, 2005
Filing Date:
September 09, 2004
Export Citation:
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Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
HARADA SATOSHI (JP)
MEGURO AKIRA (JP)
ISHIKAWA HIRONORI (JP)
OZAWA SATORU (JP)
International Classes:
G02B7/182; G02B7/183; H01Q1/28; H01Q15/16; H01Q15/20; H01L; (IPC1-7): H01Q15/20
Foreign References:
JP2003095199A2003-04-03
JP2001279197A2001-10-10
JP2000183640A2000-06-30
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