| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem in which, in a case where an optical mirror mounted in a satellite is used as a reflecting mirror, if the mirror surface diameter is increased in order to improve resolution, deformation increases due to its weight, resulting in decrease in mirror surface accuracy; and thus the weight of the optical mirror is generally reduced by imparting a rib structure to one side of the optical mirror; however, a metal fitting of a pad (sucker) type support structure cannot be directly attached to the rib of the optical mirror reduced in weight, thereby requiring to provide a flat portion in the metal fitting attaching part of a support structure.SOLUTION: According to a metal fitting of support structure in which a rib is sandwiched or which is inserted into the rib, the metal fitting can be attached to the rib directly, eliminating the need to provide a flat surface. In the present invention, a rib for reducing its weight is formed on a rear surface of the optical mirror, which is a surface opposite the mirror surface. The support metal fitting for supporting the optical mirror has a shape in which the mirror is sandwiched from both sides of the rib at the end of the rib.SELECTED DRAWING: Figure 4 |
