JPH0810292B2 - Telescope mirror support device - Google Patents
Telescope mirror support deviceInfo
- Publication number
- JPH0810292B2 JPH0810292B2 JP61243622A JP24362286A JPH0810292B2 JP H0810292 B2 JPH0810292 B2 JP H0810292B2 JP 61243622 A JP61243622 A JP 61243622A JP 24362286 A JP24362286 A JP 24362286A JP H0810292 B2 JPH0810292 B2 JP H0810292B2
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- mirror surface
- magnetic body
- plate portion
- flat plate
- 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.)
- Expired - Lifetime
Links
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、天文観測等に使用する望遠鏡、特にその
鏡面支持機構に関するものである。Description: TECHNICAL FIELD The present invention relates to a telescope used for astronomical observation and the like, and more particularly to a mirror surface support mechanism thereof.
第３図は例えば刊行物“Very Large Telescopeinteri
m report"Jan 1986 ESO VLT report No−44 page 89 Fi
g 32に示された従来の望遠鏡鏡面保持装置を示す断面図
であり、図において、（１）は鏡面支持台、（３）は鏡
面支持台（１）に固定されたモータを使用したアクチユ
エータ、（８）はアクチユエータにより上下に変位する
アクチユエータ軸である。（６）はアクチユエータ軸
（８）にバネ押え（９）を介して配置されるバネ、
（７）はバネ（６）とバネ押え（９）を介して配置され
るバネケースである。（４）は上記アクチユエータ軸
（８）及びバネケース（７）を上下動自在に支承するリ
ニアベアリング、（２）は鏡面支持機構により支持され
る鏡、（５）は鏡に加わる力を測定するセンサである。Figure 3 shows the publication "Very Large Telescopeinteri" for example.
m report "Jan 1986 ESO VLT report No−44 page 89 Fi
It is sectional drawing which shows the conventional telescope mirror surface holding device shown by g32. In the figure, (1) is a mirror surface support stand, (3) is an actuator using a motor fixed to the mirror surface support stand (1), (8) is an actuator shaft that is vertically displaced by the actuator. (6) is a spring arranged on the actuator shaft (8) via a spring retainer (9),
(7) is a spring case arranged via the spring (6) and the spring retainer (9). (4) is a linear bearing that supports the actuator shaft (8) and the spring case (7) so that it can move up and down, (2) is a mirror supported by a mirror surface support mechanism, and (5) is a sensor that measures the force applied to the mirror. Is.
次に動作について説明する。鏡面支持台（１）に固定
され、モータを内蔵したアクチユエータ（３）は制御装
置からの信号（図中矢印Ａで示す）により、アクチユエ
ータ軸（８）を上下動する。アクチユエータ軸（８）の
上下動により、バネ板（９）を介してバネ（６）を収縮
させ制御力を発生する。次に、バネ板（９）を介してバ
ネケース（７）に伝えられ鏡（２）に力を加え、鏡
（２）の位置を制御する。バネ（６）による制御力は、
アクチユエータ軸（８）の上下動により、鏡（２）を押
す方向にも引く方向にも発生でき、その強さも制御され
る。センサ（５）は鏡に加えられる制御力の大きさを検
出し、制御装置によりフイードバツク制御（図中矢印Ｂ
で示す）がかけられる。Next, the operation will be described. An actuator (3) fixed to the mirror surface support (1) and having a built-in motor moves the actuator shaft (8) up and down in response to a signal from the control device (indicated by arrow A in the figure). The vertical movement of the actuator shaft (8) causes the spring (6) to contract via the spring plate (9) to generate a control force. Next, the force is transmitted to the spring case (7) through the spring plate (9) and a force is applied to the mirror (2) to control the position of the mirror (2). The control force by the spring (6) is
By the vertical movement of the actuator shaft (8), it can be generated both in the pushing direction and the pulling direction of the mirror (2), and its strength is also controlled. The sensor (5) detects the magnitude of the control force applied to the mirror, and the feedback control is performed by the control device (arrow B in the figure).
(Indicated by) is applied.
従来の望遠鏡鏡面支持装置は以上のように構成されて
いるので、高精度のアクチユエータが必要で、高価で、
工作が難しく、頻繁に保守を必要とした。又、バネのバ
ネ定数の非線形により制御が難しい等の問題点があつ
た。Since the conventional telescope mirror surface support device is configured as described above, a high precision actuator is required, and it is expensive.
It was difficult to make and needed frequent maintenance. In addition, there is a problem that the control is difficult due to the non-linearity of the spring constant of the spring.
この発明は上記のような問題点を解消するためになさ
れたもので、高精度で鏡を位置決めできるとともに、安
価・容易に製作できる望遠鏡鏡面支持装置を得ることを
目的とする。The present invention has been made to solve the above problems, and an object of the present invention is to obtain a telescope mirror surface supporting device that can position a mirror with high accuracy and can be manufactured inexpensively and easily.
この発明に係る望遠鏡鏡面支持装置は、鏡面支持機構
に電磁石を使用したものである。The telescope mirror surface support device according to the present invention uses an electromagnet for the mirror surface support mechanism.
この発明における望遠鏡鏡面支持装置は、電磁石によ
る電磁力を制御力として使用し鏡の位置を制御する、電
磁石の大きさおよび方向は電磁石に加える電流の大きさ
および方向を変化させることで制御する。The telescope mirror surface supporting device according to the present invention controls the position of the mirror by using the electromagnetic force of the electromagnet as a control force. The size and direction of the electromagnet are controlled by changing the size and direction of the electric current applied to the electromagnet.
以下、この発明の一実施例を図について説明する。第
１図において、（１）は鏡面支持台、（２）は鏡、
（５）はセンサで従来例と同様である。（10a）は鏡面
支持台（１）に固定され上部平板部を有する鉄芯（下部
磁性体）、（10b）は鏡（２）に固定され上部平板部に
対向する下部平板部を有する鉄芯（上部磁性体）であ
り、コイル（12）と共に電磁石（11）を構成する。An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, (1) is a mirror surface support, (2) is a mirror,
(5) is a sensor, which is similar to the conventional example. (10a) is an iron core (lower magnetic body) fixed to the mirror surface support (1) and having an upper flat plate portion, and (10b) is an iron core having a lower flat plate portion fixed to the mirror (2) and facing the upper flat plate portion. (Upper magnetic body), which constitutes an electromagnet (11) together with the coil (12).
次に動作について説明する。電磁石（11）のコイル
（12）に電流を流す（図中矢印Ａで示す）ことにより鉄
芯（10a），（10b）間に磁界が発生し、電磁力が発生す
る。鉄芯（10a）は鏡面支持台（１）に、又、鉄芯（10
b）は鏡（２）に固定されているため、発生した電磁力
は鏡（２）の制御力として作用し、鏡（２）を正確な位
置に位置決めする。鏡（２）に加えられる制御力はセン
サ（５）により検出されて制御装置へと送られ（図中矢
印Ｂで示す）制御力のフイードバツクループを形成す
る。Next, the operation will be described. When a current is passed through the coil (12) of the electromagnet (11) (indicated by arrow A in the figure), a magnetic field is generated between the iron cores (10a) and (10b), and an electromagnetic force is generated. The iron core (10a) is attached to the mirror surface support (1), and the iron core (10a)
Since b) is fixed to the mirror (2), the generated electromagnetic force acts as a control force for the mirror (2) and positions the mirror (2) at an accurate position. The control force applied to the mirror (2) is detected by the sensor (5) and sent to the control device (indicated by arrow B in the figure) to form a feedback loop of the control force.
電磁石（11）で発生する制御力の大きさ・方向は、コ
イル（12）に加えられる電流の大きさ・方向により制御
される。The magnitude and direction of the control force generated by the electromagnet (11) is controlled by the magnitude and direction of the current applied to the coil (12).
なお、上記実施例ではコイル（12）を鉄芯（10a），
（10b）の両方に設けたが、第２図に示すように片方に
設けてもよい。In the above embodiment, the coil (12) is replaced by the iron core (10a),
Although it is provided on both (10b), it may be provided on one side as shown in FIG.
以上のように、この発明によれば、鏡面支持機構を、
鏡面支持台に固定され上部平板部を有する下部磁性体
と、鏡に固定され上記上部平板部に対向する下部平板部
を有する上部磁性体と、上記下部磁性体及び上記上部磁
性体のうち少なくとも一方に巻回されたコイルとを備
え、上記コイルを電磁石とし、上記上部磁性体及び上記
下部磁性体のうち少なくとも一方から発生する磁界の引
力又は斥力に応じて上記鏡を駆動するように構成したの
で、電磁石に流す電流の方向及び大きさに応じて制御す
ることができ、精度の高い鏡の位置決めができると共
に、装置を安価に製作できる効果がある。又、上部平板
部とその上部平板部に対向する下部平板部から発生する
磁界の引力又は斥力に応じて上記鏡を駆動するので、大
きな駆動力が得られる効果がある。As described above, according to the present invention, the mirror surface support mechanism is
A lower magnetic body fixed to the mirror surface support and having an upper flat plate portion, an upper magnetic body fixed to the mirror and having a lower flat plate portion facing the upper flat plate portion, and at least one of the lower magnetic body and the upper magnetic body. Since the coil is an electromagnet and is configured to drive the mirror according to the attractive force or repulsive force of the magnetic field generated from at least one of the upper magnetic body and the lower magnetic body. In addition, it is possible to control according to the direction and magnitude of the electric current flowing through the electromagnet, and it is possible to position the mirror with high accuracy and to manufacture the device at low cost. Further, since the mirror is driven according to the attractive force or repulsive force of the magnetic field generated from the upper flat plate portion and the lower flat plate portion facing the upper flat plate portion, a large driving force can be obtained.
第１図はこの発明の一実施例による望遠鏡鏡面支持装置
を示す断面図、第２図はこの発明の他の実施例による望
遠鏡鏡面支持装置を示す断面図、第３図は従来の望遠鏡
鏡面支持装置を示す断面図である。 図において、（１）は鏡面支持台、（２）は鏡、（３）
はアクチユエータ、（４）はリニアベアリング、（５）
はセンサ、（６）はバネ、（７）はバネケース、（８）
はアクチユエータ軸、（９）はバネ押え、（10a）は鉄
芯（下部磁性体）、（10b）は鉄芯（上部磁性体）、（1
1）は電磁石、（12）はコイルである。 なお、図中、同一符号は同一、又は相当部分を示す。FIG. 1 is a sectional view showing a telescope mirror surface supporting device according to an embodiment of the present invention, FIG. 2 is a sectional view showing a telescope mirror surface supporting device according to another embodiment of the present invention, and FIG. 3 is a conventional telescopic mirror surface supporting device. It is sectional drawing which shows an apparatus. In the figure, (1) is a mirror surface support, (2) is a mirror, and (3)
Is an actuator, (4) is a linear bearing, (5)
Is a sensor, (6) is a spring, (7) is a spring case, (8)
Is an actuator shaft, (9) is a spring retainer, (10a) is an iron core (lower magnetic body), (10b) is an iron core (upper magnetic body), (1
1) is an electromagnet and (12) is a coil. In the drawings, the same reference numerals indicate the same or corresponding parts.
Claims (1)
及び鏡面支持台間距離を伸縮自在にする鏡面支持機構を
備えた望遠鏡鏡面支持装置において、上記鏡面支持機構
は、上記鏡面支持台に固定され上部平板部を有する下部
磁性体と、上記鏡に固定され上記上部平板部に対向する
下部平板部を有する上部磁性体と、上記下部磁性体及び
上記上部磁性体のうち少なくとも一方に巻回されたコイ
ルとを備え、上記コイルを電磁石とし、上記上部磁性体
及び上記下部磁性体のうち少なくとも一方から発生する
磁界の引力又は斥力に応じて上記鏡を駆動することを特
徴とする望遠鏡鏡面支持装置。1. A telescope mirror surface supporting device comprising a mirror surface supporting mechanism for supporting mirrors on the mirror surface supporting base and allowing the distance between the mirror and the mirror surface supporting base to expand and contract, wherein the mirror surface supporting mechanism is provided on the mirror surface supporting base. A lower magnetic body fixed and having an upper flat plate portion, an upper magnetic body fixed to the mirror and having a lower flat plate portion facing the upper flat plate portion, and wound around at least one of the lower magnetic body and the upper magnetic body. A telescope mirror surface support, characterized in that the coil is an electromagnet, and the mirror is driven according to an attractive force or a repulsive force of a magnetic field generated from at least one of the upper magnetic body and the lower magnetic body. apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61243622A JPH0810292B2 (en) | 1986-10-13 | 1986-10-13 | Telescope mirror support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61243622A JPH0810292B2 (en) | 1986-10-13 | 1986-10-13 | Telescope mirror support device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6396615A JPS6396615A (en) | 1988-04-27 |
| JPH0810292B2 true JPH0810292B2 (en) | 1996-01-31 |
Family
ID=17106561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61243622A Expired - Lifetime JPH0810292B2 (en) | 1986-10-13 | 1986-10-13 | Telescope mirror support device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0810292B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0810298B2 (en) * | 1989-10-13 | 1996-01-31 | 三菱電機株式会社 | Reflector swing device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58137140A (en) * | 1982-02-05 | 1983-08-15 | Pioneer Video Corp | Optical system driving device of optical information recording and reproducing device |
| JPS6021731A (en) * | 1983-07-18 | 1985-02-04 | 三洋電機株式会社 | Power controller of electric cleaner |
| JPS6241119B2 (en) * | 1979-03-05 | 1987-09-01 | Tarrant Kent |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6241119U (en) * | 1985-08-29 | 1987-03-12 |
-
1986
- 1986-10-13 JP JP61243622A patent/JPH0810292B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6241119B2 (en) * | 1979-03-05 | 1987-09-01 | Tarrant Kent | |
| JPS58137140A (en) * | 1982-02-05 | 1983-08-15 | Pioneer Video Corp | Optical system driving device of optical information recording and reproducing device |
| JPS6021731A (en) * | 1983-07-18 | 1985-02-04 | 三洋電機株式会社 | Power controller of electric cleaner |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6396615A (en) | 1988-04-27 |
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