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
【課題】衛星搭載の光学ミラーを反射鏡に用いる場合、解像度向上のために鏡面口径を大きくすると自重変形が大きくなり、結果的に鏡面精度が劣化する。このため通常、光学ミラーでは片面をリブ構造とする軽量化が施される。しかしながら、パッド(吸盤)型の支持構造の金具は、軽量化された光学ミラーのリブに直接取り付けることができないため、支持構造の金具取り付け部には平面部分を設ける必要があった。【解決手段】リブを挟み込む、または、リブに差し込むような支持構造の金具によれば、リブに直接取り付けることができ、平面部を設ける必要がなくなる。本発明では、前記光学ミラーの鏡面の反対側の面である裏面側には前記光学ミラーを軽量化するリブが形成され、前記光学ミラーを支持する支持金具は、前記リブの端部において前記リブの両面から挟み込む形状を有するようにした。【選択図】 図4
LIGHTWEIGHT MIRROR
軽量化ミラー
2016-06-02
Patent
Electronic Resource
Japanese
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