JPS6188773A - Dark field image stabilizing optical device - Google Patents
Dark field image stabilizing optical deviceInfo
- Publication number
- JPS6188773A JPS6188773A JP21009584A JP21009584A JPS6188773A JP S6188773 A JPS6188773 A JP S6188773A JP 21009584 A JP21009584 A JP 21009584A JP 21009584 A JP21009584 A JP 21009584A JP S6188773 A JPS6188773 A JP S6188773A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- intensifier tube
- image intensifier
- optical device
- image stabilizing
- 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
- 230000003287 optical effect Effects 0.000 title claims description 36
- 230000000087 stabilizing effect Effects 0.000 title claims description 22
- 239000004065 semiconductor Substances 0.000 claims abstract description 7
- 230000004297 night vision Effects 0.000 claims description 19
- 230000006641 stabilisation Effects 0.000 description 5
- 238000011105 stabilization Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000013019 agitation Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/08—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing a DC motor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Adjustment Of Camera Lenses (AREA)
- Stopping Of Electric Motors (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は暗視像安定化装置に係り、特に電動機を含む慣
性付与機構によって保持された光学素子を像安定化光学
系中に含む暗視像安定化光学装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a night vision image stabilizing device, and more particularly to a night vision image stabilizing optical device including an optical element held by an inertia imparting mechanism including an electric motor in an image stabilizing optical system.
望遠鏡や双眼鏡のような光学装置に振動や動揺が伝わる
と光学装置によって形成される光学像が劣化する。この
ような光学装置に与えられる振動や動揺による像の劣化
を防止するためにジャイロスコープ等の慣生機構によっ
て保持した光学素子を含む光学系によって像安定化光学
系を構成した像安定化光学装置が種々提案されている。When vibrations or agitation are transmitted to an optical device such as a telescope or binoculars, the optical image formed by the optical device deteriorates. An image stabilizing optical device in which an image stabilizing optical system is constituted by an optical system including an optical element held by an inertial mechanism such as a gyroscope in order to prevent image deterioration due to vibrations and oscillations applied to such an optical device. Various proposals have been made.
像安定化光学装置の慣性機構は慣性力を発生させるため
慣性体を高速回転させる必要があり、その回転駆動源と
して電動機が用いられている。The inertial mechanism of an image stabilizing optical device needs to rotate an inertial body at high speed in order to generate inertial force, and an electric motor is used as the rotational drive source.
一方、暗闇の中で人間の目では直接視認できない程の暗
い物体を視覚的に観察する目的のためにイメージインテ
ンシファイア管（光電子増倍管）を望遠鏡や双眼鏡篠の
光学装置に組み入れて使用することは従来より知られて
いるところである。このような暗視光学装置においても
像安定化光学系を併用することが多く、その場合、慣性
機構用電動機の電源とイメージインテンシファイア管駆
動用の電源とを共通にしている。しかしながら従来の共
通電源を有する暗視像安定化光学装置においては以下の
ような欠点を持っている。On the other hand, image intensifier tubes (photomultiplier tubes) are incorporated into the optical equipment of telescopes and binoculars for the purpose of visually observing objects that are too dark to be directly seen by the human eye in the dark. It has been known for a long time to do this. In such night vision optical devices, an image stabilizing optical system is also often used, and in that case, the power source for the inertial mechanism motor and the power source for driving the image intensifier tube are shared. However, conventional night vision image stabilization optical devices having a common power source have the following drawbacks.
慣性機構用電動機とイメージインテンシファイア管の電
源供給用ＯＮ１０ Ｆ Ｆスイッチも共通化しているの
で、電源供給用スイッチをＯＦＦするとイメージインテ
ンシファイア管及び電動機は駆動電力が断たれるが、慣
性機構用電動機は高い慣性力をもつ慣性機構に連結され
ているので回転を継続する。完全停止するまでには数分
を要するのが普通である。その結果、電動機は発電機と
して作用して逆起電力が発生し電源供給回路を介してイ
メージインテンシファイア管に給電されイメージインテ
ンシファイア管は駆動状態となる。このような状態、即
ち被写体の観察を中断した状態の暗視像安定化光学装置
は不用意に明るい物体あるいは明光に向けられる可能性
が極めて高く、その場合イメージインテンシファイア管
はその検出レベルに比較してかなり強い光を受け、これ
をくり返すと光電面が劣化してしまう。The ON10 FF switch for power supply to the electric motor for the inertia mechanism and the image intensifier tube is also common, so when the power supply switch is turned OFF, the driving power is cut off for the image intensifier tube and the electric motor, but the inertia mechanism The electric motor continues to rotate because it is connected to an inertial mechanism with a high inertial force. It usually takes several minutes for it to come to a complete stop. As a result, the electric motor acts as a generator to generate a back electromotive force, which is supplied with power to the image intensifier tube via the power supply circuit, and the image intensifier tube is brought into a driving state. In such a state, i.e., when object observation is interrupted, there is a very high possibility that the night vision image stabilization optical device will be inadvertently pointed at a bright object or bright light, in which case the image intensifier tube will not reach the detection level. The photocathode receives relatively strong light, and if this happens repeatedly, the photocathode deteriorates.
このような電動機の慣性による回転を急停止する機構を
付加して逆起電力の発生を防止することが考えられる。It is conceivable to prevent the generation of back electromotive force by adding a mechanism that suddenly stops the rotation of the electric motor due to its inertia.
しかしながら像安定化光学装置を断続的に使用する場合
、慣性回転体がその安定高速回転に達する迄に時間がか
かるので電動機は回転継続させておくことが望ましく、
従って電動機もしくは慣性回転体に制動をかけることは
好ましくない。However, when using the image stabilizing optical device intermittently, it takes time for the inertial rotating body to reach stable high-speed rotation, so it is desirable to keep the electric motor rotating.
Therefore, it is not preferable to brake the electric motor or the inertial rotating body.
本発明はこのような事情に、鑑みてなされたもので、慣
性体駆動用電動機の慣性回転−によ−リー発生する逆起
電力がイメージインテンシファイア管の電力供給回路に
流れないようにした暗視像安定化光学装置を提案するこ
とを目的としている。The present invention was made in view of the above circumstances, and is designed to prevent the back electromotive force generated by the inertial rotation of the inertial body drive motor from flowing into the power supply circuit of the image intensifier tube. The purpose is to propose a night vision image stabilization optical device.
本発明は、暗視像安定化装置の慣性発生用電動機とイメ
ージインテンシファイア管を共通電源により駆動するよ
うにし電動機の電源供給回路内に半導体素子を電動機と
直列に接続し電動機の慣性回転による逆起電力がイメー
ジインテンシファイア管の電源供給回路を介してイメー
ジインテンシファイア管に流れないようにしたものであ
る。The present invention enables the inertia generating motor and the image intensifier tube of a night vision image stabilization device to be driven by a common power source, connects a semiconductor element in series with the motor in the power supply circuit of the motor, and uses the inertial rotation of the motor to drive the inertia generating motor and the image intensifier tube. This prevents the back electromotive force from flowing to the image intensifier tube via the image intensifier tube's power supply circuit.
以下添付図面に従って本発明に係る暗視像安定化光学装
置の好ましい実施例を説明する。Preferred embodiments of the night vision image stabilizing optical device according to the present invention will be described below with reference to the accompanying drawings.
第１図は本発明の一実施例である暗視像安定化双眼鏡装
置の外観斜視図、第２図は本発明の要部である電源供給
回路の一例を示す概略回路図である。第１図に示すよう
に暗視像安定化双眼鏡１は、入射光軸と射出光軸を同一
直線上にとることができる王立プリズムを望遠鏡光学系
を構成する対物レンズ２と接眼レンズ３０間に配置しこ
れをジャイロモータ等の慣性回転装置を有するジンバル
懸架装置によって暗視像安定化双眼鏡１の本体内部に揺
動自在にとりつけられている。更に暗視像安定化双眼鏡
１０本体内部にはイメージインテンシファイア管のその
入射面を望遠鏡光学系を構成する対物レンズ２の光学系
の焦点位置に又射出面を同じく接眼レンズ３の光学系の
焦点位置にそれぞれ一致させて固定して設けられている
。このような暗視像安定化双眼鏡の像安定化光学系及び
その機構は既によく知られているので説明な省略するこ
とにする。図中符号５で示すのは着脱自在に設けられた
バッテリーケースでありジャイロモータ等の慣性機構の
電動機及びイメージインテンシファイア管の駆動電源用
バッテリーが収納されていて該ケース５は止め金６で暗
視像安定化双眼鏡１本体に固定されている。このバッテ
リーケース５にはジャイロモータ等の慣性機構の電動機
及びイメージインテンシファイア管への電力供給用のＯ
Ｎ１０ Ｆ Ｆスイッチγが設けられており、このスイ
ッチγをＯＮにしている間室動機及びイメージインテン
シファイア管が作動する。FIG. 1 is an external perspective view of a night vision image stabilizing binocular device which is an embodiment of the present invention, and FIG. 2 is a schematic circuit diagram showing an example of a power supply circuit which is a main part of the present invention. As shown in FIG. 1, the night vision image stabilizing binoculars 1 have a royal prism between the objective lens 2 and the eyepiece lens 30 that make up the telescope optical system, which allows the incident optical axis and exit optical axis to be on the same straight line. It is swingably mounted inside the main body of the night vision image stabilizing binoculars 1 by a gimbal suspension device having an inertial rotation device such as a gyro motor. Furthermore, inside the main body of the night vision image stabilizing binoculars 10, the entrance surface of the image intensifier tube is located at the focal point of the optical system of the objective lens 2 constituting the telescope optical system, and the exit surface is also located at the focal position of the optical system of the objective lens 3 constituting the telescope optical system. They are fixedly provided so as to correspond to the respective focal positions. Since the image stabilizing optical system and its mechanism of such night vision image stabilizing binoculars are already well known, a detailed explanation thereof will be omitted. Reference numeral 5 in the figure indicates a removably installed battery case, which houses an electric motor for an inertial mechanism such as a gyro motor, and a battery for driving the image intensifier tube. Night vision image stabilization binoculars 1 are fixed to the main body. This battery case 5 has an O for supplying power to an electric motor of an inertial mechanism such as a gyro motor and an image intensifier tube.
A N10 F F switch γ is provided, and when this switch γ is turned on, the chamber motor and image intensifier tube are operated.
給電回路は第２図に示されているようにパンテリ−ケー
ス５側回路部分２１と暗視像安定化双眼鏡１の本体側回
路部分２２より構成され、両回路部分２１．２２はバッ
テリーケース５を本体の取り付は固定した時に接続端子
２３を介して特別な操作をすることなく接続されるよう
に構成さｉている。回路部分２１には０Ｎ１０Ｆ’Ｆス
イツチＴ及びバッテリー２４が直列に又回路部分２２に
は半導体素子２５とジャイロモータ等の慣性機構の電動
機（Ｍ） ２６か直列に接続され又電動機２６に対して
並列に、レギュレータ回路２Ｔに接続されたイメージイ
ンテンシファイア管２８が接続されており、両回路部分
２１．２２が接続された時に電動機駆動回路及びイメー
ジインテンシファイア管駆動回路が形成される。このよ
うな回路構成によれば、スイッチ７をＯＮにすると同時
に両駆動回路には電力が供給され電動機２６及びイメー
ジインテンシファイアｖ２Ｂが共に駆動される。一方ス
イッチ７をＯＦＦにすると両駆動回路への電力供給は断
たれるのでイメージインテンシファイア管２８は駆動さ
れないが、電動機２６は減速しながらもその慣性により
工ないし数分間回転し続ける。その結果、電動機２６は
発電機として作用し図中量で示される方向の逆起電力が
発生する。しかし、軍動機駆動回路内には電動機２６と
直列に半導体素子２５が接続されているので電動機駆動
回路と並列のイメージインテンシファイア管駆動回路に
は電動機２６で発止した逆起電力が流れることはない。As shown in FIG. The main body is attached so that when it is fixed, it can be connected via the connection terminal 23 without any special operation. A 0N10F'F switch T and a battery 24 are connected in series to the circuit section 21, and a semiconductor element 25 and an electric motor (M) 26 of an inertial mechanism such as a gyro motor are connected in series to the circuit section 22, and are connected in parallel to the electric motor 26. An image intensifier tube 28 connected to the regulator circuit 2T is connected to the image intensifier tube 28, and when both circuit parts 21, 22 are connected, a motor drive circuit and an image intensifier tube drive circuit are formed. According to such a circuit configuration, when the switch 7 is turned on, power is supplied to both drive circuits and both the electric motor 26 and the image intensifier v2B are driven. On the other hand, when the switch 7 is turned OFF, the power supply to both drive circuits is cut off, so the image intensifier tube 28 is not driven, but the electric motor 26 continues to rotate for several minutes due to its inertia even though it is decelerating. As a result, the electric motor 26 acts as a generator and generates a back electromotive force in the direction indicated by the amount in the figure. However, since the semiconductor element 25 is connected in series with the motor 26 in the military machine drive circuit, the back electromotive force generated by the motor 26 flows into the image intensifier tube drive circuit that is parallel to the motor drive circuit. There isn't.
上記実施例によれば電源供給スイッチ７＆ＯＦＦにして
もジャイロモータ等の慣性機構の電動機はなお回転を継
続するにもかかわらず、イメージインテンシファイア管
が再び駆動状態になることはない。According to the above embodiment, even if the power supply switch 7 is turned OFF, the electric motor of the inertial mechanism such as the gyro motor continues to rotate, but the image intensifier tube is not driven again.
以上暗視像安定化双眼鏡装置について説明したが、本発
明は双眼鏡に限定され・ることなく、単眼伊その他光学
装置においても同様に実施することができる。Although the night vision image stabilizing binocular device has been described above, the present invention is not limited to binoculars, and can be similarly implemented in monocular and other optical devices.
以上説明したように本発明に係る暗視像安定化光学装置
によれば像安定化光学装置の慣性機構に含まれる電動機
が駆動電力を断たれた後もなお回転を継続するにもかか
わらず、この電動機に制動をかけることなく、即ち電動
機による逆起電力の発生を許容したままイメージインテ
ンシファイア管の意図せざる駆動を回避することができ
、容易にイメージインテンシファイア管を保鏝すること
ができる。As explained above, according to the night vision image stabilizing optical device according to the present invention, even though the electric motor included in the inertial mechanism of the image stabilizing optical device continues to rotate even after the driving power is cut off, To easily maintain the image intensifier tube by avoiding unintended driving of the image intensifier tube without applying braking to the electric motor, that is, while allowing the generation of counter electromotive force by the electric motor. I can do it.
第１図は本発明の一実施例な示す暗視像安定化双眼鏡装
置の外や斜視図、第２図は本発明の要部である電源供給
回路の概略図である。
２・・・対物レンズ ３・・・接眼レンズ５・・・
バッテリーケース Ｔ・・・ＯＮ１０ Ｆ Ｆスイ
ッチ２３・・・接続端子 ２４・・・バッテリー２
５・・・半導体 ２６・・・電動機２ ｒ・・・
レギュレータ回路 ２８・・・イメージインテンシフ
ァイア管第１ 叉FIG. 1 is an external and perspective view of a night-vision image stabilizing binocular device that is an embodiment of the present invention, and FIG. 2 is a schematic diagram of a power supply circuit that is a main part of the present invention. 2... Objective lens 3... Eyepiece lens 5...
Battery case T...ON10 F F switch 23...Connection terminal 24...Battery 2
5... Semiconductor 26... Electric motor 2 r...
Regulator circuit 28...Image intensifier tube 1st fork
Claims (1)
シフアイア管を光学系中に含み慣性機構の償性発生用電
動機及びイメージインテンシフアイア管を共通電源によ
り駆動するよう構成した暗視像安定化光学装置において
、慣性発生用電動機駆動用の電源回路内に電動機と直列
に半導体素子を接続したことを特徴とする暗視像安定化
光学装置。A night vision image stabilizing optical device comprising an optical element coupled to an inertia imparting mechanism and an image intensifier tube in an optical system, and configured to drive a compensation generating motor of the inertia mechanism and an image intensifier tube by a common power source. A night vision image stabilizing optical device characterized in that a semiconductor element is connected in series with the motor in a power supply circuit for driving the inertia generating motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21009584A JPS6188773A (en) | 1984-10-06 | 1984-10-06 | Dark field image stabilizing optical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21009584A JPS6188773A (en) | 1984-10-06 | 1984-10-06 | Dark field image stabilizing optical device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6188773A true JPS6188773A (en) | 1986-05-07 |
Family
ID=16583730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21009584A Pending JPS6188773A (en) | 1984-10-06 | 1984-10-06 | Dark field image stabilizing optical device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6188773A (en) |
-
1984
- 1984-10-06 JP JP21009584A patent/JPS6188773A/en active Pending
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