JP2003185811A - Lightweight mirror - Google Patents
Lightweight mirrorInfo
- Publication number
- JP2003185811A JP2003185811A JP2001381700A JP2001381700A JP2003185811A JP 2003185811 A JP2003185811 A JP 2003185811A JP 2001381700 A JP2001381700 A JP 2001381700A JP 2001381700 A JP2001381700 A JP 2001381700A JP 2003185811 A JP2003185811 A JP 2003185811A
- Authority
- JP
- Japan
- Prior art keywords
- core
- mirror
- lightweight
- back plate
- rib
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Optical Elements Other Than Lenses (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、例えば人工衛星
等の支持体に搭載される、望遠鏡や光学センサないし光
アンテナに使用する軽量化ミラーに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lightweight mirror mounted on a support such as an artificial satellite and used for a telescope, an optical sensor or an optical antenna.
【０００２】[0002]
【従来の技術】図５は従来の軽量化ミラーの片半分を示
す斜視図であり、軽量化ミラーは、表面を研磨した鏡面
１を有し、裏面側に凹部形状の穴２が柱状のリブ部３を
介して複数形成されているとともに、リブ部３に設けら
れた複数の支持点４により支持体（図示せず）に支持さ
れるコア５と、このコア５の裏面に設けられたバックプ
レート６とを有している。バックプレート６は、穴２の
開口部の形状よりも大きく個々の開口部を覆った複数の
プレート部７から構成されている。従来の軽量化ミラー
は、規模の大きいものは人工衛星等の支持体に搭載時に
受ける荷重が大きいため、バックプレート６をコア５に
接着や溶着等で取り付けることで補強を行っている。2. Description of the Related Art FIG. 5 is a perspective view showing one half of a conventional weight-reducing mirror. The weight-reducing mirror has a mirror surface 1 whose surface is polished, and a recessed hole 2 on the back surface is a columnar rib. A plurality of cores 5 are formed through the portion 3, and are supported by a support (not shown) by a plurality of support points 4 provided on the rib portion 3, and a back provided on the back surface of the core 5. And a plate 6. The back plate 6 is composed of a plurality of plate portions 7 which are larger than the shape of the openings of the holes 2 and cover the individual openings. Since the conventional lightweight mirror has a large load when mounted on a support such as an artificial satellite, the back plate 6 is reinforced by being attached to the core 5 by adhesion or welding.
【０００３】[0003]
【発明が解決しようとする課題】従来の軽量化ミラー
は、軽量化ミラーが大型になり重量が大きくなると、剛
性不足により共振固有値が低下し、人工衛星である支持
体の主要振動モードと共振して大荷重を受け易いという
問題点があった。また、強度不足により、支持体に搭載
した際の振動荷重などに耐えられなくなるという問題点
もあった。In the conventional lightweight mirror, when the lightweight mirror becomes large in size and heavy in weight, the resonance eigenvalue is lowered due to lack of rigidity and resonates with the main vibration mode of the support body which is an artificial satellite. However, there is a problem that it is easily subjected to a large load. Further, due to insufficient strength, there is a problem in that it cannot withstand a vibration load when it is mounted on a support.
【０００４】この発明は、かかる問題点を解決すること
を課題とするものであって、軽量、高剛性の軽量化ミラ
ーを提供することを目的とする。An object of the present invention is to solve such a problem, and an object thereof is to provide a lightweight and highly rigid lightweight mirror.
【０００５】[0005]
【課題を解決するための手段】この発明に係る軽量化ミ
ラーは、表面に鏡面を有し、裏面側に凹部形状の穴が柱
状のリブ部を介して複数形成されているとともに、リブ
部に設けられた複数の支持点により支持体に支持される
コアを有する軽量化ミラーであって、前記支持点同士を
結ぶリブ部の隣接した前記穴間の寸法は、他のリブ部の
隣接した前記穴間の寸法よりも大きい。A lightweight mirror according to the present invention has a mirror surface on the front surface, and a plurality of recessed holes are formed on the back surface side through columnar rib portions, and the rib portions are formed on the rib portions. A weight-reducing mirror having a core supported by a support body by a plurality of support points provided, wherein a dimension between adjacent holes of a rib portion connecting the support points is the same as that of another rib portion. Larger than the dimension between holes.
【０００６】この発明に係る軽量化ミラーは、表面に鏡
面を有し、裏面側に凹部形状の穴が柱状のリブ部を介し
て複数形成されているコアと、このコアの裏面に設けら
れコアを補強したバックプレートとを備えた軽量化ミラ
ーであって、前記リブ部は、先端部が隣接した穴側に延
びた断面Ｔの字形状である。The lightweight mirror according to the present invention has a core having a mirror surface on the front surface and a plurality of recessed holes formed on the back surface side through columnar ribs, and a core provided on the back surface of the core. And a back plate that reinforces, wherein the rib portion has a T-shaped cross section in which the tip portion extends toward the adjacent hole.
【０００７】この発明に係る軽量化ミラーでは、コアの
裏面に設けられコアを補強したバックプレートを備えて
いる。The weight-reducing mirror according to the present invention includes a back plate provided on the back surface of the core and reinforcing the core.
【０００８】この発明に係る軽量化ミラーでは、バック
プレートは、穴の開口部の形状よりも大きく個々の開口
部を覆った複数のプレート部から構成されている。In the weight-reducing mirror according to the present invention, the back plate is composed of a plurality of plate portions which are larger than the shape of the openings of the holes and cover the individual openings.
【０００９】この発明に係る軽量化ミラーでは、支持点
は３点支持である。In the lightweight mirror according to the present invention, the supporting points are three-point supporting.
【００１０】この発明に係る軽量化ミラーでは、バック
プレートは、コアと略同一の線膨張係数の材料で構成さ
れている。In the lightweight mirror according to the present invention, the back plate is made of a material having substantially the same linear expansion coefficient as that of the core.
【００１１】この発明に係る軽量化ミラーでは、支持点
はコアの外周部に設けられている。In the lightweight mirror according to the present invention, the support point is provided on the outer peripheral portion of the core.
【００１２】この発明に係る軽量化ミラーでは、コアは
ガラスで構成されている。In the lightweight mirror according to the present invention, the core is made of glass.
【００１３】[0013]
【発明の実施の形態】以下、この発明の各実施の形態に
ついて説明するが、従来のものと同一または同等部材、
部位については、同一符号を付して説明する。
実施の形態１．図１はこの発明の実施の形態１の軽量化
ミラーを裏側から視た図、図２は図１のコアを裏側から
視た図である。軽量化ミラーは、表面を研磨した鏡面１
を有し、裏面側に三角の凹部形状の穴２が柱状のリブ部
１３ａ，１３ｂを介して複数形成されているコア１５
と、このコア１５の裏面に設けられたバックプレート６
とを有しており、３点の支持点４で支持体（図示せず）
に支持されている。バックプレート６は、穴２の開口部
の形状よりも大きく個々の開口部を覆った複数のプレー
ト部７から構成されている。バックプレート６は、コア
１５と同一のガラス材料で構成されている。また、プレ
ート部７の中央部には空気抜き用の円形穴９が形成され
ており、人工衛星搭載用望遠鏡などに軽量化ミラーが使
用される際にはコア１５とバックプレート６との間に空
気が残留しないようになっている。リブ部１３ａ，１３
ｂは、コア１５の外周部に１２０°間隔で設けられた支
持点４同士を結ぶリブ部１３ａと、それ以外のリブ部１
３ｂとで幅寸法ｔ１、ｔ２が異なる。一方のリブ部１３
ａの隣接した穴２間の幅寸法ｔ１は他方のリブ部１３ｂ
の隣接した穴２間の幅寸法ｔ２よりも大きい。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, each embodiment of the present invention will be described. The same or equivalent member as the conventional one,
The parts will be described with the same reference numerals. Embodiment 1. 1 is a view of a weight-reducing mirror according to Embodiment 1 of the present invention as viewed from the back side, and FIG. 2 is a view of the core shown in FIG. 1 as viewed from the back side. The lightweight mirror has a mirror surface 1 with a polished surface.
And a core 15 having a plurality of triangular recessed holes 2 formed on the back surface via columnar ribs 13a and 13b.
And the back plate 6 provided on the back surface of the core 15.
And a support body (not shown) with three support points 4
Supported by. The back plate 6 is composed of a plurality of plate portions 7 which are larger than the shape of the openings of the holes 2 and cover the individual openings. The back plate 6 is made of the same glass material as the core 15. Further, a circular hole 9 for venting air is formed in the central portion of the plate portion 7, and when a lightweight mirror is used in a telescope for mounting an artificial satellite or the like, an air gap is provided between the core 15 and the back plate 6. Will not remain. Rib portions 13a, 13
b is a rib portion 13a connecting the support points 4 to each other provided at 120 ° intervals on the outer peripheral portion of the core 15, and the other rib portions 1
3b has different width dimensions t1 and t2. One rib portion 13
The width t1 between the adjacent holes 2 of a is the other rib portion 13b.
Is larger than the width t2 between the holes 2 adjacent to each other.
【００１４】コア１５、バックプレート６に使用するガ
ラス材料としては、温度変化によるミラー熱変形を抑制
し易いことに配慮して、例えばクリアセラム-Ｚ(クリア
セラムは株式会社オハラの登録商標)などの極低膨張ガ
ラスセラミックス材料や、SiO 2-TiO2系組成の極低膨張
アモルファスガラス材料等の線膨張係数がゼロに近い材
料が適している。バックプレート６をコア１５に取付け
る方法としては、平面度を維持したままそれぞれの接触
面を十分研磨して密着させるオプティカルコンタクト
(光学接着)と呼ばれる方法により実現可能である。ま
た、真空中で使用する人工衛星搭載用望遠鏡などに利用
する場合には、更に昇温して固着させる方法や、圧力を
かけながら昇温固着させるダイレクトボンディング(直
接接合)と呼ばれる方法により固着強度向上と均一性向
上が可能となる。トールシール(米国Varian社の登録商
標)等の接着剤で接着する方法も可能であることは言う
までもない。Gas used for the core 15 and the back plate 6
As a lath material, suppresses thermal deformation of mirror due to temperature change
Considering that it is easy to do, for example, Clear Serum-Z (Clear
Serum is a registered trademark of OHARA INC.)
Lath ceramic material and SiO 2-TiO2Very low expansion of system composition
Materials with linear expansion coefficient close to zero, such as amorphous glass materials
The fee is suitable. Attach back plate 6 to core 15
The method of contacting each other is to maintain the flatness.
Optical contact that sufficiently polishes the surface to adhere
It can be realized by a method called (optical adhesion). Well
In addition, it is used in a satellite-mounted telescope used in a vacuum.
If you want to increase the
Direct bonding (direct bonding)
The method called `` contact bonding '' improves the bond strength and improves uniformity.
It is possible to go above. Toll Seal (registered trademark of Varian
It is said that a method of bonding with an adhesive such as
There is no end.
【００１５】上記構成の軽量化ミラーでは、支持点４同
士を結ぶ直線方向には、支持体を介して大きな圧縮力お
よび引っ張り力が加わるが、その箇所のリブ部１３ａの
幅寸法ｔ１は、他のリブ部１３ｂの幅寸法ｔ２よりも大
きい。つまり、高い強度を必要とするリブ部１３ａと、
それよりも低い強度でよいリブ部１３ｂとに、幅寸法を
変えることで、適正強度を有するコア１５を得ることが
でき、コア１５の軽量化を図ることができる。In the lightweight mirror having the above structure, a large compressive force and a tensile force are applied through the support in the linear direction connecting the support points 4, but the width t1 of the rib portion 13a at that portion is different from the other. It is larger than the width t2 of the rib portion 13b. That is, the rib portion 13a requiring high strength,
By changing the width dimension to the rib portion 13b which may have a lower strength than that, it is possible to obtain the core 15 having an appropriate strength and reduce the weight of the core 15.
【００１６】また、バックプレート６は、穴２の開口部
の形状よりも大きく個々の開口部を覆った複数のプレー
ト部７から構成されているので、一枚の円板で構成され
たバックプレートと比較して、加工が容易となり、加工
時間が短縮され、かつバックプレート６のコア１５に対
する取り付け作業性が向上する。Further, since the back plate 6 is composed of a plurality of plate portions 7 which are larger than the shape of the openings of the holes 2 and cover the individual openings, the back plate 6 is composed of a single disc. Compared with, processing becomes easier, processing time is shortened, and workability of attaching the back plate 6 to the core 15 is improved.
【００１７】また、バックプレート６は３点の支持点４
で支持体に支持されているので、安定して支持体に支持
される。The back plate 6 has three supporting points 4
Since it is supported by the support, it is stably supported by the support.
【００１８】また、バックプレート６は、コア１５と同
一の線膨張係数の材料で構成されているので、バックプ
レート６とコア１５との間で熱応力が生じにくい。Further, since the back plate 6 is made of a material having the same linear expansion coefficient as that of the core 15, thermal stress is unlikely to occur between the back plate 6 and the core 15.
【００１９】また、支持点４はコア１５の外周部に設け
られており、コア１５の外周部は全体が三角形状の幅広
のリブ部１３ａで支持されているので、コア１５は堅固
であり、強度が向上する。The supporting point 4 is provided on the outer peripheral portion of the core 15, and the outer peripheral portion of the core 15 is supported by the wide rib portion 13a having a triangular shape as a whole. Strength is improved.
【００２０】実施の形態２．図３はこの実施の形態２の
軽量化ミラーのコア２５を裏から視た図である。この実
施の形態では、支持体に支持される支持点１４は、リン
グ形状のコア２５の内径側に１２０°間隔で三点設けら
れている。コア２５のリブ部２３ａ，２３ｂの内、支持
点１４同士を結ぶリブ部２３ａの幅寸法ｔ１は、他のリ
ブ部２３ｂの幅寸法ｔ２よりも大きい。他の構成は、実
施の形態１と同様である。この実施の形態では、幅寸法
ｔ１が大きなリブ部２３ａがコア２５の内径側に設けら
れているので、支持体との関係でコア２５の内径側に大
きな圧縮力および引っ張り力が加わる構造のときに適し
ている。なお、コアの中間部に大きな圧縮力および引っ
張り力が加わるときには、その箇所に幅寸法が大きなリ
ブ部を設けるようにすればよい。Embodiment 2. FIG. 3 is a view of the core 25 of the weight-reducing mirror according to the second embodiment as viewed from the back. In this embodiment, three support points 14 supported by the support are provided on the inner diameter side of the ring-shaped core 25 at 120 ° intervals. Of the rib portions 23a and 23b of the core 25, the width dimension t1 of the rib portion 23a connecting the support points 14 to each other is larger than the width dimension t2 of the other rib portion 23b. Other configurations are similar to those of the first embodiment. In this embodiment, the rib portion 23a having a large width dimension t1 is provided on the inner diameter side of the core 25. Therefore, in the structure in which a large compressive force and a tensile force are applied to the inner diameter side of the core 25 in relation to the support body. Suitable for When a large compressive force or tensile force is applied to the middle portion of the core, a rib portion having a large width dimension may be provided at that portion.
【００２１】実施の形態３．図４はこの発明の実施の形
態３の要部断面図である。この実施の形態では、コア３
５のリブ部３３は、先端部３３ａが隣接した穴２側に延
びた断面Ｔの字形状である。この先端部３３ａにはバッ
クプレート６のプレート部７が接着されている。他の構
成は実施の形態１と同様である。Embodiment 3. FIG. 4 is a cross-sectional view of the essential parts of Embodiment 3 of the present invention. In this embodiment, the core 3
The rib portion 33 of No. 5 has a T-shaped cross section in which the tip portion 33a extends toward the adjacent hole 2 side. The plate portion 7 of the back plate 6 is bonded to the tip portion 33a. Other configurations are similar to those of the first embodiment.
【００２２】この実施の形態では、リブ部３３は、先端
部３３ａが隣接した穴２側に延びた断面Ｔの字形状であ
るので、プレート部７とリブ部３３との接着面積が大き
くなり、軽量化ミラーの広い接着面積を確保でき接合し
易いのに加えて剛性を高めることができる。In this embodiment, since the rib portion 33 has a T-shaped cross section in which the tip portion 33a extends toward the adjacent hole 2 side, the bonding area between the plate portion 7 and the rib portion 33 increases, It is possible to secure a wide bonding area of the lightweight mirror, facilitate bonding, and increase rigidity.
【００２３】なお、上記の各実施の形態では、バックプ
レート６については、複数個のプレート部７で構成され
たが、円板状の一枚の部材で構成されてもよい。また、
実施の形態１、２では、バックプレート６を備えた軽量
化ミラーについて説明したが、バックプレートが無い軽
量化ミラーについても、この発明は適用できる。さら
に、コア１５、２５の裏面に施された穴２の形状は、こ
こでは三角形状であるが、それ以外の多角形状でもよ
く、また円形形状でもよい。In each of the above embodiments, the back plate 6 is composed of a plurality of plate portions 7, but it may be composed of a single disk-shaped member. Also,
In Embodiments 1 and 2, the lightweight mirror having the back plate 6 has been described, but the present invention can be applied to a lightweight mirror having no back plate. Further, the shape of the hole 2 formed on the back surfaces of the cores 15 and 25 is triangular here, but it may be polygonal other than that, or circular.
【００２４】[0024]
【発明の効果】以上説明したように、この発明に係る軽
量化ミラーによれば、大きな圧縮力および引っ張り力を
受ける、支持点同士を結ぶリブ部の隣接した穴間の寸法
は、他のリブ部の隣接した穴間の寸法よりも大きいの
で、適正強度のコアを得ることができ、コアの軽量化を
図ることができる。As described above, according to the lightweight mirror of the present invention, the dimension between the adjacent holes of the rib portion connecting the supporting points, which receives a large compressive force and tensile force, is different from that of the other ribs. Since the size is larger than the size between the holes adjacent to each other, a core having appropriate strength can be obtained, and the weight of the core can be reduced.
【００２５】また、この発明に係る軽量化ミラーによれ
ば、リブ部は、先端部が隣接した穴側に延びた断面Ｔの
字形状であるので、バックプレートとリブ部との接着面
積が大きくなり、軽量化ミラーの剛性を高めることがで
きる。Further, according to the weight-reducing mirror of the present invention, since the rib portion has a T-shaped cross section in which the tip portion extends toward the adjacent hole side, the bonding area between the back plate and the rib portion is large. Therefore, the rigidity of the lightweight mirror can be increased.
【００２６】また、コアの裏面に設けられコアを補強し
たバックプレートを備えたときには、軽量化ミラーの剛
性が向上する。Further, when the back plate provided on the back surface of the core and reinforcing the core is provided, the rigidity of the weight-reducing mirror is improved.
【００２７】また、バックプレートは、穴の開口部の形
状よりも大きく個々の開口部を覆った複数のプレート部
から構成されているときには、一枚の円板で構成された
バックプレートと比較して、加工が容易となり、加工時
間が短縮され、かつバックプレートのコアに対する取り
付け作業性が向上する。Further, when the back plate is composed of a plurality of plate portions which are larger than the shape of the openings of the holes and cover the individual openings, as compared with the back plate composed of one disc. Processing is facilitated, processing time is shortened, and workability of attaching the back plate to the core is improved.
【００２８】また、支持点は３点支持であるときには、
軽量化ミラーは支持体に安定して支持される。When the supporting points are three-point supporting,
The lightweight mirror is stably supported by the support.
【００２９】また、バックプレートが、コアと略同一の
線膨張係数の材料で構成されているときには、バックプ
レートとコアとの間での熱応力が生じにくい。Further, when the back plate is made of a material having substantially the same linear expansion coefficient as that of the core, thermal stress is less likely to occur between the back plate and the core.
【００３０】また、支持点がコアの外周部に設けられて
いるときには、コアの外周部は幅広のリブ部で支持され
ていることになり、コアは堅固となる。When the support points are provided on the outer peripheral portion of the core, the outer peripheral portion of the core is supported by the wide rib portion, and the core becomes solid.
【００３１】また、コアがガラスで構成されているとき
には、安価で軽量化ミラーを製造することができる。When the core is made of glass, a lightweight mirror can be manufactured at low cost.
【図１】 この発明の実施の形態１の軽量化ミラーを裏
側から視た図である。FIG. 1 is a view of a weight-reducing mirror according to a first embodiment of the present invention viewed from the back side.
【図２】 図１のコアを裏側から視た図である。FIG. 2 is a view of the core of FIG. 1 viewed from the back side.
【図３】 この発明の実施の形態２の軽量化ミラーのコ
アを裏側から視た図である。FIG. 3 is a view of the core of the lightweight mirror according to the second embodiment of the present invention as viewed from the back side.
【図４】 この発明の実施の形態３の軽量化ミラーの要
部断面図である。FIG. 4 is a sectional view of a main part of a weight-reducing mirror according to a third embodiment of the present invention.
【図５】 従来の軽量化ミラーの片半分の斜視図であ
る。FIG. 5 is a perspective view of one half of a conventional lightweight mirror.
１ 鏡面、２ 穴、６ バックプレート、７ プレート
部、１３ａ，２３ａ，１３ｂ，２３ｂ，３３ リブ部、
３３ａ 先端部、２５，３５ コア。1 mirror surface, 2 holes, 6 back plate, 7 plate part, 13a, 23a, 13b, 23b, 33 rib part,
33a Tip, 25, 35 cores.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 村上 和 東京都千代田区丸の内二丁目２番３号 三 菱電機株式会社内 (72)発明者 迎 久幸 東京都千代田区丸の内二丁目２番３号 三 菱電機株式会社内 (72)発明者 上野 信一 東京都千代田区丸の内二丁目２番３号 三 菱電機株式会社内 (72)発明者 南川 弘行 神奈川県相模原市小山１丁目15番30号 株 式会社オハラ内 (72)発明者 山城 亮治 東京都千代田区丸の内３丁目２番３号 株 式会社ニコン内 Ｆターム(参考） 2H042 DA19 DA20 DB06 DE09 2H043 CA01 CE00 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Kazu Murakami 2-3 2-3 Marunouchi, Chiyoda-ku, Tokyo Inside Ryo Electric Co., Ltd. (72) Inventor Yasuyuki 2-3 2-3 Marunouchi, Chiyoda-ku, Tokyo Inside Ryo Electric Co., Ltd. (72) Inventor Shinichi Ueno 2-3 2-3 Marunouchi, Chiyoda-ku, Tokyo Inside Ryo Electric Co., Ltd. (72) Inventor Hiroyuki Minamikawa 1-15-30 Koyama, Sagamihara City, Kanagawa Prefecture In ceremony company OHARA (72) Inventor Ryoji Yamashiro Marunouchi 3 2-3 No. 3 shares, Chiyoda-ku, Tokyo Ceremony Company Nikon F-term (reference) 2H042 DA19 DA20 DB06 DE09 2H043 CA01 CE00
Claims (8)
穴が柱状のリブ部を介して複数形成されているととも
に、リブ部に設けられた複数の支持点により支持体に支
持されるコアを有する軽量化ミラーであって、前記支持
点同士を結ぶリブ部の隣接した前記穴間の寸法は、他の
リブ部の隣接した前記穴間の寸法よりも大きい軽量化ミ
ラー。1. A mirror surface is provided on the front surface, and a plurality of recessed holes are formed on the back surface side through columnar rib portions, and the holes are supported by a support body by a plurality of support points provided on the rib portions. A weight-reducing mirror having a core, wherein a dimension between adjacent holes of a rib connecting the support points is larger than a dimension between adjacent holes of another rib.
穴が柱状のリブ部を介して複数形成されているコアと、
このコアの裏面に設けられコアを補強したバックプレー
トとを備えた軽量化ミラーであって、前記リブ部は、先
端部が隣接した穴側に延びた断面Ｔの字形状である軽量
化ミラー。2. A core having a mirror surface on the front surface and a plurality of recess-shaped holes formed on the back surface side through columnar rib portions,
A weight-reducing mirror provided with a back plate which is provided on the back surface of the core and reinforces the core, wherein the rib portion has a T-shaped cross-section whose tip extends toward the adjacent hole.
ックプレートを備えた請求項１に記載の軽量化ミラー。3. The lightweight mirror according to claim 1, further comprising a back plate provided on the back surface of the core to reinforce the core.
りも大きく個々の開口部を覆った複数のプレート部から
構成されている請求項２または請求項３に記載の軽量化
ミラー。4. The weight-reducing mirror according to claim 2, wherein the back plate is composed of a plurality of plate portions that are larger than the shape of the openings of the holes and cover the individual openings.
たは４の何れかに記載の軽量化ミラー。5. The lightweight mirror according to claim 1, wherein the supporting points are three-point supporting.
張係数の材料で構成されている請求項２ないし請求項５
の何れかに記載の軽量化ミラー。6. The back plate is made of a material having substantially the same linear expansion coefficient as that of the core.
The lightweight mirror according to any one of 1.
請求項１、３〜６の何れかに記載の軽量化ミラー。7. The weight-reducing mirror according to claim 1, wherein the support points are provided on the outer peripheral portion of the core.
ないし請求項７の何れかに記載の軽量化ミラー。8. The core is made of glass.
The lightweight mirror according to claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001381700A JP3842122B2 (en) | 2001-12-14 | 2001-12-14 | Lightweight mirror |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001381700A JP3842122B2 (en) | 2001-12-14 | 2001-12-14 | Lightweight mirror |
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| Publication Number | Publication Date |
|---|---|
| JP2003185811A true JP2003185811A (en) | 2003-07-03 |
| JP3842122B2 JP3842122B2 (en) | 2006-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001381700A Expired - Fee Related JP3842122B2 (en) | 2001-12-14 | 2001-12-14 | Lightweight mirror |
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| FR2935178A1 (en) * | 2008-08-21 | 2010-02-26 | Schott Ag | Mirror supporting substratum for e.g. terrestrial observation, has spacers defined between one set of recesses and/ or two set of recesses, where part of one set of spacers has width different from width of part of other set of spacers |
| FR2941306A1 (en) * | 2009-01-19 | 2010-07-23 | Schott Ag | SUBSTRATE FOR A MIRROR SUPPORT MADE OF GLASS OR GLASS CERAMIC |
| JP2012162449A (en) * | 2011-01-19 | 2012-08-30 | Schott Ag | Substrate having lightweight structure |
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