JPWO2020122197A1 - ハニカムサンドイッチパネル、光学装置および人工衛星 - Google Patents
ハニカムサンドイッチパネル、光学装置および人工衛星 Download PDFInfo
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Abstract
Description
実施の形態1に係る光学装置について、図1から図6を参照して説明する。図1は、実施の形態1に係る光学装置の斜視図である。図2から図5は、光学装置の正面図、平面図、右側面図および底面図である。図6は、図3に示すA−A断面での断面図である。光学装置である反射鏡構造体50は、反射鏡1および鏡支持部材2を有する。反射鏡構造体50は、天体などを観測する光学望遠鏡を構成する。鏡支持部材2は、反射鏡1を支持する部材である。反射鏡1は、観測に使用する光である観測光を反射する反射面3、反射面の反対側の面である背面の中央に設けられた被支持部4を有する。被支持部4は、鏡支持部材2により支持される部材である。反射面3は、外形が円であり、凹面である。被支持部4は、外形が円筒状の突起である。突起の先端側には、反射鏡1の光軸LX(図2、図4に図示)に平行な3個の平面である被支持面5が設けられている。被支持面5は、同じ大きさの長方形の平面であり、互いに120度の角度をなす。被支持部4は、光軸LXの回りに120度ごとの回転対称性を有する。鏡支持部材2は、反射鏡1の背面の側に存在する構造部材である。反射鏡1と鏡支持部材2は、観測の用途に使用しない光学機器にも適用できる。
CFRPを使用したハニカムサンドイッチパネルでは、繊維方向や層構造により剛性や熱膨張係数の性質が変化する。そのため、繊維方向や層構造を検討および調整した上でスキン材やコア材を製造する必要がある。結果として、CFRP製のハニカムサンドイッチパネルは、低膨張金属を使用する場合よりも、手間、時間およびコストの少なくとも1つが多くかかる。
とする。温度変化は、10[K]の上昇とする。
以上のことは、他の実施の形態にもあてはまる。
実施の形態2に係る光学装置を搭載した人工衛星を、図18から図20を参照して説明する。図18は、実施の形態2に係る光学装置を搭載した人工衛星の正面図である。図19は、光学装置と人工衛星とが接続する部分の拡大図である。図20は、光学装置の内部構成を説明する概念的な断面図である。
1 反射鏡(光学機器)
2 鏡支持部材(構造部材)
3 反射面
4 被支持部
5 被支持面
6 支持基板部(本体部)
7 軸受部
8 支持開口部(鏡接続部)
9 支持ビーム(支持部材、鏡接続部)
9A 鏡支持部(鏡接続部)
9B ビーム部
9C フランジ部
9D リンク部
10 ビーム固定部(鏡接続部)
11 軸保持穴
12 Y軸部材
13 円筒面
14 X軸回転部材
15 X軸部材
16 鏡基底部材
20 ハニカムサンドイッチパネル
21 第1スキン材
22 コア材
23 第2スキン材
30 人工衛星
31 衛星本体
32 光学望遠鏡(光学装置)
33 接続パネル部
34 入射口
35 台座部(構造部材)
36 鏡筒部(構造部材)
37 鏡筒基部
38 鏡筒中間部
39 機器保持部
40 光路円筒部
41 スリット(光学機器)
42 光路
43 突起(光学機器接続部)
44 突起(光学機器接続部)
45 ロッド(光学機器接続部)
46 縮径部
LX 光軸
CS 中心面
Claims (10)
- 熱膨張係数の絶対値が炭素繊維強化プラスチックよりも小さい金属である低膨張金属で製造された板材である第1スキン材と、
前記低膨張金属で製造された、前記第1スキン材と対向するように配置された板材である第2スキン材と、
断面が六角形である複数の筒を隣接して形成して前記第1スキン材および前記第2スキン材に接合した、炭素繊維強化プラスチックまたは前記低膨張金属で製造されたコア材とを備えたハニカムサンドイッチパネル。 - 前記低膨張金属の熱膨張係数の絶対値が10のマイナス7乗よりも小さい、請求項1に記載のハニカムサンドイッチパネル。
- 前記コア材が前記低膨張金属で製造された、請求項1または請求項2に記載のハニカムサンドイッチパネル。
- 前記第1スキン材と前記第2スキン材とが互いに平行に、前記コア材が前記第1スキン材および前記第2スキン材に垂直に接合するように配置され、前記コア材が正六角形である複数の筒を隣接して形成する、請求項1から請求項3の何れか1項に記載のハニカムサンドイッチパネル。
- 光を反射する反射鏡と、
前記反射鏡を支持する、請求項1から請求項4の何れか1項に記載のハニカムサンドイッチパネルを含んで構成された鏡支持部材とを備えた光学装置。 - 前記反射鏡は、光を反射する反射面の反対側の面である背面に設けられて前記鏡支持部材に支持される被支持部を有し、
前記鏡支持部材は、前記反射鏡の背面側に存在する本体部、前記被支持部の前記本体部に対する位置を固定して前記被支持部を前記本体部に接続する鏡接続部を有する、請求項5に記載の光学装置。 - 複数の光学機器と、
前記光学機器を支持する、請求項1から請求項4の何れか1項に記載のハニカムサンドイッチパネルを含んで構成された構造部材とを備え、
複数の前記光学機器の中から2個の前記光学機器を選択するすべての組み合わせに関して、一方の前記光学機器から他方の前記光学機器を結ぶ前記構造部材を通る経路のそれぞれは、前記経路上の前記ハニカムサンドイッチパネルまたは前記低膨張金属で製造された部分の割合が決められた下限値以上である、光学装置。 - 観測に使用する光である観測光を反射する前記光学機器である反射鏡と、
前記反射鏡を支持する前記構造部材である鏡支持部材と、
前記鏡支持部材を支持する前記構造部材である台座部と
前記観測光が通る経路である光路を囲み前記台座部と接続された、前記光学機器を支持する前記構造部材である鏡筒部とを備えた、請求項7に記載の光学装置。 - 衛星本体と、
請求項5から請求項8の何れか1項に記載の光学装置と、
前記衛星本体に対する前記光学装置の位置が温度変化によって変化することを許容して前記光学装置を前記衛星本体に接続する光学機器接続部とを備えた人工衛星。 - 前記光学機器接続部が、トラスを構成する複数本のロッドを有する、請求項9に記載の人工衛星。
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US11391913B2 (en) * | 2018-12-13 | 2022-07-19 | Mitsubishi Electric Corporation | Optical device |
FR3117458B1 (fr) * | 2020-12-16 | 2023-04-21 | Thales Sa | Dispositif de protection d’un instrument optique d’un satellite |
WO2022163804A1 (ja) * | 2021-01-29 | 2022-08-04 | 三菱電機株式会社 | 鏡支持機構および光学装置 |
CN113753271B (zh) * | 2021-10-22 | 2023-02-24 | 中国科学院长春光学精密机械与物理研究所 | 一种空间太阳望远镜前置滤光镜支撑装置 |
CN114200634B (zh) * | 2021-11-29 | 2024-03-15 | 北京空间机电研究所 | 一种空间相机指向反射镜组件 |
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