JPH01219801A - Variable focus type reflection mirror - Google Patents
Variable focus type reflection mirrorInfo
- Publication number
- JPH01219801A JPH01219801A JP4648088A JP4648088A JPH01219801A JP H01219801 A JPH01219801 A JP H01219801A JP 4648088 A JP4648088 A JP 4648088A JP 4648088 A JP4648088 A JP 4648088A JP H01219801 A JPH01219801 A JP H01219801A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- reflection mirror
- pressure chamber
- chamber
- focal length
- 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.)
- Pending
Links
- 238000010586 diagram Methods 0.000 description 2
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000005297 pyrex Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、たとえばニュートン式やカセグレン式望遠
鏡などの対物鏡や副鏡に採用され、適宜の焦点を形成す
べく反射面が放物線面よシなる反射鏡に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention is applied to, for example, an objective mirror or a secondary mirror of a Newtonian or Cassegrain telescope, and the reflecting surface is shaped like a parabolic surface to form an appropriate focal point. Regarding the reflecting mirror.
従来の反射鏡にあっては、パイレックスガラスなどの表
面を凸面または凹面の放物線面にみがいた焦点距離が固
定のものであった。このような反射鏡において、その焦
点距離を変える場合には反射鏡をあらかじめ数種類用意
しておき、適当な反射鏡を選定して交換していた。Conventional reflecting mirrors have a fixed focal length, with a surface made of Pyrex glass or the like polished into a convex or concave parabolic surface. When changing the focal length of such a reflecting mirror, several types of reflecting mirrors are prepared in advance, and an appropriate reflecting mirror is selected and replaced.
上述のような反射鏡では、その交換時には一時的に観測
を中断したり、装置を停止して行なわなければならなか
った。しかも連続的な焦点距離の変更は行なえないばか
シでなく、原子力炉内や宇宙船などでの交換はほとんど
困難であった。さらには交換後に微調節が必要であり熟
練した作業者が必要であるなどの課題があった。When replacing a reflector like the one described above, it was necessary to temporarily interrupt observation or stop the equipment. Moreover, it was impossible to change the focal length continuously, and it was difficult to change it inside a nuclear reactor or in a spacecraft. Furthermore, there were other problems such as the need for fine adjustment after replacement and the need for a skilled worker.
本発明の可変焦点式反射鏡は、前述の課題を解決するだ
めに、圧力室及び反射鏡保持部よりなるシェルと、この
シェルの圧力室の圧力を正圧または負圧に調節自在な室
圧調節装置と、シェルの反射鏡保持部に保持され、圧力
室の圧力により反射面を種々の放物線面に変化させ焦点
距離を変化させる反射鏡とから構成したものである。In order to solve the above-mentioned problems, the varifocal reflector of the present invention has a shell consisting of a pressure chamber and a reflector holding part, and a chamber pressure that can freely adjust the pressure of the pressure chamber of this shell to positive pressure or negative pressure. It consists of an adjustment device and a reflector that is held in a reflector holding part of the shell and that changes the focal length by changing the reflecting surface into various parabolic surfaces depending on the pressure in the pressure chamber.
前述のように構成した本発明の可変焦点式反射鏡は、だ
とえは遠隔操作で室圧調節装置により、シェル内の室圧
を任意に調節できる。この室圧を調節することにより、
反射鏡が凸面または凹面状の適宜の放物線面に撓み、適
宜の位置に焦点を結ばせることができる。In the varifocal reflector of the present invention configured as described above, the chamber pressure inside the shell can be adjusted arbitrarily by a chamber pressure adjusting device by remote control. By adjusting this chamber pressure,
The reflecting mirror can be deflected into a convex or concave parabolic surface to focus on a suitable position.
このことにより、反射鏡を交換しなくても連続的にその
焦点距離を変化させることができる。しかも反射鏡の反
射面側の圧力と、シェルの室圧とを等しくすることによ
り、平面鏡としても使用できる。This allows the focal length to be changed continuously without replacing the reflecting mirror. Furthermore, by making the pressure on the reflecting surface side of the reflecting mirror equal to the chamber pressure in the shell, it can also be used as a plane mirror.
以下、本発明の可変焦点式反射鏡の一実施例を図面に基
づいて詳述する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a varifocal reflector according to the present invention will be described in detail below with reference to the drawings.
第１図は、可変焦点式反射鏡（１）の概略構成図を示す
。この可変焦点式反射鏡（１）は、シェル（２）と室圧
調節装置（３）と反射鏡（４）より構成されている。FIG. 1 shows a schematic configuration diagram of a variable focus reflector (1). This varifocal reflector (1) is composed of a shell (2), a room pressure regulator (3), and a reflector (4).
シェル（２）には、圧力室（５）が形成され、その開口
部にはＯＩＪソング６）により反射鏡（４）を気密に保
持する保持部（７）が形成されている。A pressure chamber (5) is formed in the shell (2), and a holding part (7) for airtightly holding the reflecting mirror (4) with an OIJ song 6) is formed at the opening of the pressure chamber (5).
シェル（２）の圧力室（５）には室圧調節装置（３）の
圧力計（８）と配管（白）が接続されている。配管（９
）は圧縮機配管系（９ａ）と真空ポンプ配管系（９ｂ）
とに分かれ、電磁式操作弁（１０ａ）（１０ｂ）とによ
り圧縮機（ｌｌａ）と真空ポンプ（ｌｌｂ）に適宜切換
え可能に構成されている。この切換えは、制御部＠によ
り、電磁式操作弁（１０ａ）（１０ｂ）をそれぞれ開閉
切換操作することにより行なうべく構成されている。The pressure chamber (5) of the shell (2) is connected to a pressure gauge (8) of a room pressure regulator (3) and piping (white). Piping (9
) are compressor piping system (9a) and vacuum pump piping system (9b)
The compressor (lla) and the vacuum pump (llb) can be switched as appropriate using electromagnetic operation valves (10a) and (10b). This switching is configured to be performed by opening and closing the electromagnetic operation valves (10a) and (10b), respectively, by the control unit @.
反射鏡（４）は、薄板より成り、その反射面α３にはた
とえば、アルミニウムなどの適宜の反射材料がコーティ
ングされている。The reflecting mirror (4) is made of a thin plate, and its reflecting surface α3 is coated with a suitable reflective material such as aluminum.
以上のように構成した可変焦点式反射鏡（１）において
、凹面の反射面（１３ａ）とするには、制御部（イ）の
操作により電磁式操作弁（１０ａ）を閉じ、電磁式操作
弁（１０ｂ）を開放する。圧力室（５）は真空ポンプ配
管系（９ｂ）に通じ真空ポンプ（ｌｌｂ）により負圧と
なる。従って反射鏡（４）は圧力室（５１側へ撓み凹面
状の反射面（１３ａ）となる。In the varifocal reflector (1) configured as described above, in order to have a concave reflecting surface (13a), the electromagnetic operating valve (10a) is closed by operation of the control unit (a), and the electromagnetic operating valve (10a) is closed. (10b) is opened. The pressure chamber (5) communicates with the vacuum pump piping system (9b) and is brought to negative pressure by the vacuum pump (llb). Therefore, the reflecting mirror (4) is bent toward the pressure chamber (51 side) and becomes a concave reflecting surface (13a).
一方、凸面の反射面（１３ｂ）とするには、制御部（６
）の操作によりミ磁式操作弁（１０ａ）を開放し、電磁
式操作弁（１０ｂ）を閉じる。圧力室（５）は＃メ配管
系（９ａ）に通じ、圧縮機（ｌｌａ）により、正圧とな
る。従って反射鏡（４）は反圧力室（５）側へ撓み凸面
状の反射面（１３ｂ）となる。On the other hand, in order to make the reflective surface (13b) a convex surface, the control section (6
) opens the electromagnetic operation valve (10a) and closes the electromagnetic operation valve (10b). The pressure chamber (5) communicates with the #metal piping system (9a), and is brought to positive pressure by the compressor (lla). Therefore, the reflecting mirror (4) is bent toward the anti-pressure chamber (5) side and becomes a convex reflecting surface (13b).
さらには、圧力室（５）の圧力を外部圧と同一になるよ
うに制御してやれば、反射鏡（４）は自身の°弾性によ
り平滑な反射面（１３ｃ）となる。Furthermore, if the pressure in the pressure chamber (5) is controlled to be the same as the external pressure, the reflecting mirror (4) will have a smooth reflecting surface (13c) due to its own degree elasticity.
反射＊ （４）の凹面又は、凸面は放物線面であり、焦
点を有することはいうまでもない。そして圧力計（８）
により、圧力室（５）の圧を一定に維持させることがで
きると同時に、任意の反射面α］を再現することができ
る。また、圧力室（５）の圧力は連続的に変化させるこ
とができるため、反射鏡（４）の焦点を連続的に変化さ
せることができる。Reflection* It goes without saying that the concave or convex surface in (4) is a parabolic surface and has a focal point. and pressure gauge (8)
Accordingly, the pressure in the pressure chamber (5) can be maintained constant, and at the same time, an arbitrary reflection surface α] can be reproduced. Moreover, since the pressure in the pressure chamber (5) can be changed continuously, the focus of the reflecting mirror (4) can be changed continuously.
なお、第２図は反射鏡（４）のその他の実施例を示し、
その裏面α→をｎ次曲線面として、光束をより正確に集
束させるように形成したものである。In addition, FIG. 2 shows other embodiments of the reflecting mirror (4),
The back surface α→ is formed as an n-dimensional curved surface so as to more accurately focus the light beam.
前述のような本発明の可変焦点式反射鏡（１）にあって
は、圧力室（５）内の圧力を室圧調節装置（３）を用い
て、たとえば遠隔操作にて任意に調節することにより、
反射鏡（４）を任意の焦点距離に連続的に設定すること
ができる。In the varifocal reflector (1) of the present invention as described above, the pressure in the pressure chamber (5) can be arbitrarily adjusted using the chamber pressure adjustment device (3), for example, by remote control. According to
The reflector (4) can be continuously set to any focal length.
従って、焦点距離を変更したい場合でも反射鏡（４）を
交換しなくても可能であシ、しかも連続的に変化させる
ことができる。さらには交換による観測の中断や運転の
中止がなく、交換時の微調節が不要となシ、原子力炉内
や宇宙船などへ設置すれば、その効果は計りしれない。Therefore, even if it is desired to change the focal length, it is possible to do so without replacing the reflecting mirror (4), and moreover, the focal length can be changed continuously. Furthermore, there is no interruption in observation or suspension of operation due to replacement, and there is no need for fine adjustments when replacing.If installed inside a nuclear reactor or on a spacecraft, the effect will be immeasurable.
また、圧力室（５）の圧力を外圧と等しくさせることに
より、平面鏡としても使用できる。Furthermore, by making the pressure in the pressure chamber (5) equal to the external pressure, it can also be used as a plane mirror.
図面は、本発明の可変焦点式反射鏡を示し、第１図は第
１の実施例の概略構成図を示し、第２図は反射鏡の第２
の実施例を示す。
１・・可変焦点式反射鏡 ２・・・シェル３・・室圧調
節装置 ４・・・反射鏡５・・〜圧力室
６・・・０リング７・・・保持部 ８・・
・圧力計９・・・配管 ９ａ・・・圧縮機
配管系９ｂ・・・真空ポンプ配管系
１０ａ・・・電磁式操作弁 １０ｂ・・・−電磁式操
作弁１１ ａ・・・圧縮機 １１ｂ・・・真空
ポンプ１２・・・制御部 １３・・・反射面
１４・・裏面
特許出願人 株式会社メイテノク
第１図
糖２図The drawings show a varifocal reflector of the present invention, FIG. 1 shows a schematic configuration diagram of the first embodiment, and FIG. 2 shows a second embodiment of the reflector.
An example is shown below. 1...Variable focus reflector 2...Shell 3...Room pressure adjustment device 4...Reflector 5...~Pressure chamber
6...0 ring 7...holding part 8...
・Pressure gauge 9... Piping 9a... Compressor piping system 9b... Vacuum pump piping system 10a... Solenoid operated valve 10b...-Solenoid operated valve 11 a... Compressor 11b. ...Vacuum pump 12...Control unit 13...Reflecting surface 14...Back side Patent applicant Meitenoku Co., Ltd. Figure 1 Sugar Figure 2
Claims (1)
の圧力を正圧または負圧に調節自在な室圧調節装置と、 前記シェルの反射鏡保持部に保持され、前記圧力室の圧
力により反射面を種々の放物線面に変化させ焦点距離を
変化させる反射鏡とからなることを特徴とする可変焦点
式反射鏡。[Scope of Claims] A shell comprising a pressure chamber and a reflector holder, a chamber pressure adjustment device that can freely adjust the pressure of the pressure chamber to positive pressure or negative pressure, and held by the reflector holder of the shell, A varifocal reflector comprising a reflector that changes its focal length by changing its reflecting surface into various parabolic surfaces depending on the pressure in the pressure chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4648088A JPH01219801A (en) | 1988-02-29 | 1988-02-29 | Variable focus type reflection mirror |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4648088A JPH01219801A (en) | 1988-02-29 | 1988-02-29 | Variable focus type reflection mirror |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01219801A true JPH01219801A (en) | 1989-09-01 |
Family
ID=12748365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4648088A Pending JPH01219801A (en) | 1988-02-29 | 1988-02-29 | Variable focus type reflection mirror |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01219801A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08318383A (en) * | 1995-05-24 | 1996-12-03 | Mitsubishi Electric Corp | Laser beam machine |
| US6666559B2 (en) | 2001-04-17 | 2003-12-23 | Olympus Optical Co., Ltd. | Variable-profile optical device including variable-profile mirror and optical element including variable-profile optical element |
| US6726338B2 (en) | 2000-11-16 | 2004-04-27 | Olympus Optical Co., Ltd. | Variable shape mirror and its manufacturing method |
| JP2010183996A (en) * | 2009-02-12 | 2010-08-26 | Kenji Okayasu | Mirror |
| JP2014119626A (en) * | 2012-12-18 | 2014-06-30 | Kenji Okayasu | Magnification variable mirror and apparatus incorporated with the same |
| CN114376326A (en) * | 2021-12-02 | 2022-04-22 | 安徽省茂鑫家居工艺品有限公司 | Cosmetic mirror |
-
1988
- 1988-02-29 JP JP4648088A patent/JPH01219801A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08318383A (en) * | 1995-05-24 | 1996-12-03 | Mitsubishi Electric Corp | Laser beam machine |
| US6726338B2 (en) | 2000-11-16 | 2004-04-27 | Olympus Optical Co., Ltd. | Variable shape mirror and its manufacturing method |
| US6886952B2 (en) | 2000-11-16 | 2005-05-03 | Olympus Optical Co., Ltd. | Variable shape mirror and its manufacturing method |
| US6666559B2 (en) | 2001-04-17 | 2003-12-23 | Olympus Optical Co., Ltd. | Variable-profile optical device including variable-profile mirror and optical element including variable-profile optical element |
| US6869196B2 (en) | 2001-04-17 | 2005-03-22 | Olympus Optical Co., Ltd. | Variable-profile optical device including variable profile mirror and optical element including variable profile optical element |
| JP2010183996A (en) * | 2009-02-12 | 2010-08-26 | Kenji Okayasu | Mirror |
| JP2014119626A (en) * | 2012-12-18 | 2014-06-30 | Kenji Okayasu | Magnification variable mirror and apparatus incorporated with the same |
| CN114376326A (en) * | 2021-12-02 | 2022-04-22 | 安徽省茂鑫家居工艺品有限公司 | Cosmetic mirror |
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