JPH08152504A - Optical axis angle varying device - Google Patents
Optical axis angle varying deviceInfo
- Publication number
- JPH08152504A JPH08152504A JP6297378A JP29737894A JPH08152504A JP H08152504 A JPH08152504 A JP H08152504A JP 6297378 A JP6297378 A JP 6297378A JP 29737894 A JP29737894 A JP 29737894A JP H08152504 A JPH08152504 A JP H08152504A
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- plate
- optical axis
- axis angle
- Prior art date
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- Optical Elements Other Than Lenses (AREA)
- Liquid Crystal (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えばハンディタイプ
のビデオカメラ装置に入射された撮像光の出射光の光軸
を可変して手振れを補正する手振補正装置に設けて好適
な光軸角可変装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical axis angle suitable for a hand-shake correcting device for correcting a hand-shake by changing an optical axis of outgoing light of image pickup light incident on a handy type video camera device. The variable device.
【０００２】[0002]
【従来の技術】今日において、いわゆるＣＣＤイメージ
センサが設けられたハンディタイプのビデオカメラ装置
が普及している。2. Description of the Related Art Today, handy type video camera devices provided with a so-called CCD image sensor are in widespread use.
【０００３】上記ハンディタイプのビデオカメラ装置
は、小型且つ軽量であるがゆえに撮像時に手振れを生じ
やすいという問題がある。上記撮像時に手振れを生じる
と、例えばズームアップして撮像した画像を再生した際
に、該再生画像に細かい“ゆれ”が生じてしまい、再生
画像が大変見にくくなってしまう。The handy-type video camera device, which is small and lightweight, has a problem that camera shake is likely to occur during image pickup. If camera shake occurs during the above-described image pickup, for example, when a zoomed-up image is played back, a fine “shaking” occurs in the played back image, making it very difficult to see the played back image.
【０００４】上記手振れによる“ゆれ”を補正して、再
生画像を見やすくする方法として、ビデオカメラ装置に
設けられる手振れ補正装置により手振れを補正する技術
が知られている。この手振れ補正装置において、手振れ
を補正する補正手段には、画像処理によって補正する方
法、又は光学的な処理によって補正する方法を採用した
ものが知られている。As a method for correcting the "shake" due to the above-mentioned camera shake to make the reproduced image easier to see, there is known a technology for correcting the camera shake by a camera shake correction device provided in a video camera device. In this camera shake correction apparatus, as a correction means for correcting the camera shake, there is known one that adopts a method of correcting by image processing or a method of correcting by optical processing.
【０００５】上記画像処理により手振れを補正する補正
手段として、メモリ制御方式とＣＣＤ駆動制御方式とが
知られている。A memory control system and a CCD drive control system are known as correction means for correcting camera shake by the above image processing.
【０００６】上記メモリ制御方式は、手振れを検出する
と、被写体の撮像により得られた映像信号の一部を画像
枠として取り出し、前フィールドの画像枠と現フィール
ドの画像枠とを互いに合わせるように動かし、上記両画
像枠を互いに一致させるものであり、この画像枠部分の
画像を拡大することで補正余裕領域を確保している。こ
の画像を拡大した場合は、ＣＣＤイメージセンサの解像
度以上に映像信号を拡大させるため再生画像の画質を低
下させることとなる。この画質の低下は、補正余裕領域
を広くするほど大きくなるが、上記画像処理を行う回路
を集積化することにより、小型且つ低価格なビデオカメ
ラ装置用として適している。In the above memory control system, when camera shake is detected, a part of a video signal obtained by picking up an image of a subject is taken out as an image frame and moved so that the image frame of the previous field and the image frame of the current field are aligned with each other. The two image frames are matched with each other, and the correction margin area is secured by enlarging the image of the image frame portion. When this image is enlarged, the image signal is enlarged beyond the resolution of the CCD image sensor, so that the quality of the reproduced image is deteriorated. The deterioration of the image quality becomes larger as the correction margin area becomes wider, but by integrating the circuit for performing the image processing, it is suitable for a small and low-priced video camera device.
【０００７】上記ＣＣＤ駆動制御方式は、手振れを検出
すると、この手振れに応じて被写体の撮像により得られ
る映像信号をＣＣＤイメージセンサから読み出すタイミ
ングを変えて、再生画像を手振れ前後の映像信号の画像
処理により加工するものであり、この画像処理を行う回
路を集積化することにより、小型且つ低価格なビデオカ
メラ装置用として適している。In the CCD drive control system, when a camera shake is detected, the timing of reading a video signal obtained by picking up an image of a subject from the CCD image sensor is changed according to the camera shake, and a reproduced image is subjected to image processing of the video signal before and after the camera shake. It is suitable for a small and low-priced video camera device by integrating a circuit for performing this image processing.
【０００８】上記光学的処理により手振れを補正する補
正手段として、ジンバルメカ方式とアクテブ・プリズム
方式とが知られている。Gimbal mechanical system and active prism system are known as the correction means for correcting the camera shake by the optical processing.
【０００９】上記ジンバルメカ方式は、手振れを検出す
ると、手振れをキャンセルする方向にレンズユニット全
体を動かして手振れを補正するものであり、多少大型と
なっても高解像度としたいビデオカメラ装置用として適
している。The gimbal mechanical system, when detecting a camera shake, moves the entire lens unit in a direction for canceling the camera shake to correct the camera shake, and is suitable for a video camera device which is desired to have a high resolution even if it is slightly large. There is.
【００１０】上記アクテブ・プリズム方式は、手振れを
検出すると、手振れをキャンセルする方向にアクテブ・
プリズムのみを動かして手振れを補正するものである。In the above-mentioned active prism system, when the camera shake is detected, the active prism is activated in the direction of canceling the camera shake.
Only the prism is moved to correct the camera shake.
【００１１】このアクテブ・プリズム方式で用いられる
アクテブ・プリズムは、二枚のガラス板を特殊フィルム
でできた伸縮自在の蛇腹でつなぎ、そのなかに上記二枚
のガラス板とほぼ同一の光学屈折率の液体を注入して形
成される。このアクテブ・プリズムは、被写体からビデ
オ本体へ被写体像を導くためにビデオカメラ本体の前面
に設けられた対物レンズから、ＣＣＤイメージセンサに
被写体像を導くレンズユニットの上記対物レンズとＣＣ
Ｄイメージセンサとの間の位置に設けられて、上記二枚
のガラス板の各ガラス板において、ビデオカメラ本体の
縦方向又は横方向のいずれかの各異なる方向に対する傾
き角（以下、頂角と称する。）を可変させて、手振れを
補正するものであり、消費電力が小さく、小型化が容易
で、解像度の劣化が少なく、補正範囲も比較的広く取れ
て、高画質で小型且つ軽量なビデオカメラ装置を実現す
る。The active prism used in this active prism system connects two glass plates with a stretchable bellows made of a special film, and has an optical refractive index almost the same as that of the above two glass plates. It is formed by injecting the liquid. This active prism is an objective lens provided on the front surface of the video camera body for guiding the subject image from the subject to the video main body, and the objective lens and the CC of the lens unit for guiding the subject image to the CCD image sensor.
In each of the two glass plates provided at a position between the D image sensor and each of the two glass plates, a tilt angle (hereinafter referred to as an apex angle with respect to a vertical direction or a horizontal direction) of the video camera main body is different. Is used to correct camera shake, which consumes less power, can be easily downsized, has less degradation in resolution, and has a relatively wide correction range, resulting in high image quality, small size, and light weight video. Realize a camera device.
【００１２】これら手振れを補正する補正手段は、いず
れも手振れを検出した際に、手振れの補正を行うもので
ある。この手振れを検出する揺れ量検出手段として、動
きベクトル検出方式と角速度検出方式とが知られてい
る。All of these correction means for correcting camera shake are for correcting camera shake when camera shake is detected. A motion vector detection method and an angular velocity detection method are known as shake amount detection means for detecting this camera shake.
【００１３】上記動きベクトル検出方式は、現フィール
ドと前フィールドとの被写体の画像信号の差を画像処理
により得ることで、被写体の移動量と方向とを検出する
ものである。この方式では、低照度時に誤動作しやすい
などの欠点がある。しかし、この方式を採用した揺れ量
検出手段は、上記画像処理を行う回路を集積化すること
で、小型且つ低価格なビデオカメラ装置用として適して
いる。The above-mentioned motion vector detecting method detects the amount of movement and the direction of the subject by obtaining the difference between the image signals of the subject in the current field and the previous field by image processing. This method has a drawback that it is likely to malfunction at low illuminance. However, the shake amount detecting means adopting this method is suitable for a small-sized and low-priced video camera device by integrating the circuit for performing the image processing.
【００１４】上記角速度検出方式は、圧電振動ジャイロ
等による角速度センサを用いて、角速度を検出する。こ
の角速度検出方式では、大きなスペースを必要とする
が、照度条件等で誤動作することもなく、リアルタイム
で検出が行われる。このため、この方式を採用した揺れ
量検出手段は、手振れ補正を精度良く行うビデオカメラ
装置用として適している。The angular velocity detecting method detects an angular velocity by using an angular velocity sensor such as a piezoelectric vibrating gyro. This angular velocity detection method requires a large space, but does not malfunction due to illuminance conditions or the like, and detection is performed in real time. For this reason, the shake amount detecting means adopting this method is suitable for a video camera device that accurately performs camera shake correction.
【００１５】以上のように、ハンディタイプのビデオカ
メラ装置に用いられる手振れ補正装置は、動きベクトル
検出方式、又は角速度検出方式による揺れ量検出手段に
より、ビデオカメラ本体の振れに起因した画像の手振れ
を検出しながら、メモリ制御方式、ＣＣＤ駆動制御方式
等の画像処理による方法、又はジンバルメカ方式、アク
テブ・プリズム方式等の光学的処理方法による補正手段
により、上記画像の揺れ量を打ち消すようなサーボ制御
を行って手振れを補正する。As described above, the camera shake correction apparatus used in the handy type video camera apparatus uses the shake amount detecting means based on the motion vector detection method or the angular velocity detection method to eliminate the image shake caused by the shake of the video camera body. While detecting, a servo control for canceling the above-mentioned image shake amount is performed by a correction means by a method by image processing such as a memory control method, a CCD drive control method, or an optical processing method such as a gimbal mechanism method, an active prism method. Go and correct camera shake.
【００１６】このように手振れ補正装置により、画像の
手振れを打ち消すようなサーボ制御が行われて手振れが
補正される。このため、ビデオカメラ装置の再生画像
は、手振れによる“ゆれ”を生じさせず、見やすい画像
となる。As described above, the camera shake correction device performs the servo control for canceling the camera shake of the image to correct the camera shake. Therefore, the reproduced image of the video camera device is an image that is easy to see without causing “shaking” due to camera shake.
【００１７】[0017]
【発明が解決しようとする課題】ところで、上記メモリ
制御方式では、画質の低下を抑えるため補正範囲を広く
できないが、例えば手振れによる画角が大きくなる望遠
での撮像の際には、被写体が遠くなるほど補正範囲外に
はみ出しやすくなり、手振れの補正が行われにくくなる
という問題点が生じている。また、この補正範囲を広く
した場合には、画質の低下、及び通常では使用されない
領域まで補正範囲を無駄に広くする必要が有るという問
題点が生じている。By the way, in the above memory control method, the correction range cannot be widened in order to suppress the deterioration of the image quality. However, for example, when the image is taken in the telephoto mode where the angle of view is large due to camera shake, the object is far away. As a matter of fact, there is a problem in that the image easily comes out of the correction range, and it becomes difficult to correct the camera shake. Further, when the correction range is widened, there are problems that the image quality is deteriorated and the correction range needs to be unnecessarily widened to an area that is not normally used.
【００１８】また、上記ＣＣＤ駆動制御方式は、手振れ
中の再生画像を手振れ前後の映像信号の画像処理により
加工するため、手振れ中の再生画像の画像が不連続にな
るという問題点が生じている。Further, in the CCD drive control method, since the reproduced image during camera shake is processed by the image processing of the video signal before and after camera shake, there is a problem that the image of the reproduced image during camera shake becomes discontinuous. .
【００１９】上記ジンバルメカ方式では、解像度の劣化
がなく、補正範囲も比較的広く取れるが、レンズユニッ
ト全体を駆動するため、メカニズムが複雑かつ大型にな
るため、駆動系の長期耐久性が弱く、消費電力も大きく
なるという問題点が生じている。また、ビデオカメラ装
置の移動の際の該ビデオカメラ装置の重心移動によるブ
レや該ビデオカメラ装置の筐体部への密閉取付が煩雑と
なる等の問題点が生じている。In the gimbal mechanical system, the resolution is not deteriorated and the correction range can be made relatively wide. However, since the entire lens unit is driven, the mechanism becomes complicated and large, so the long-term durability of the drive system is weak and the consumption is low. There is a problem that the electric power also increases. Further, there are problems such as blurring due to the movement of the center of gravity of the video camera device when the video camera device is moved, and complicated attachment of the video camera device to the housing portion in a hermetically sealed manner.
【００２０】上記アクテブ・プリズム方式では、上記ア
クテブ・プリズムに注入された液体の粘性や屈折率が温
度変化に応じて変化して、撮像光の出射角度がズレるこ
とを抑えるように上記二枚の各ガラス板のサーボ制御系
の制御において温度補償する必要が有り、該サーボ制御
系が複雑になるという問題点が生じている。また、上記
常時流動する液体をシール部でシールする必要がある
が、このシール部での長期耐久性が低く、また該液体が
漏れた際には上記サーボ制御系等を劣化させる等の問題
点が生じている。また、上記アクテブ・プリズムの構造
上、大口径化が困難であり高解像度化を困難とし、かつ
低気圧のもとでは気泡を生じやすく、気泡による画像の
乱れが生じる等の問題点が生じている。In the active prism system, the viscosity and the refractive index of the liquid injected into the active prism are changed according to the temperature change, so that the emission angle of the image pickup light is prevented from shifting. In the control of the servo control system of each glass plate, it is necessary to perform temperature compensation, which causes a problem that the servo control system becomes complicated. Further, it is necessary to seal the constantly flowing liquid with a seal portion, but the long-term durability of the seal portion is low, and when the liquid leaks, the servo control system and the like are deteriorated. Is occurring. Further, due to the structure of the active prism, it is difficult to increase the aperture and resolution, and bubbles are likely to be generated under low pressure, which causes problems such as image distortion due to bubbles. There is.
【００２１】本発明はこのような問題に鑑み、大口径化
及び高解像度化が容易で、小型軽量で、長期耐久性に優
れ、広い補正範囲で手振れ補正を行う手振れ補正装置を
実現する光軸角可変装置を提供することを目的とする。In view of the above problems, the present invention provides an optical axis which realizes a camera shake correction device which can easily realize a large aperture and high resolution, is small and lightweight, has excellent long-term durability, and performs camera shake correction in a wide correction range. An object is to provide a variable angle device.
【００２２】[0022]
【課題を解決するための手段】本発明に係る光軸角可変
装置は、入射光を透過させる透過面に透明電極が設けら
れて配設される第一の透明板と、上記第一の透明板の透
過面に傾斜対向して透過面が設けられる第一の透過板
と、上記第一の透明板の透過面と第一の透過板の透過面
との間に充填封入されて、上記第一の透明板と第一の透
過板とに設けられた電極間の電位差に応じて、屈折率を
可変する液晶とを備える。An optical axis angle varying device according to the present invention includes a first transparent plate provided with a transparent electrode on a transmission surface for transmitting incident light, and the first transparent plate. A first transparent plate having a transparent surface which is inclinedly opposed to the transparent surface of the plate, and is filled and sealed between the transparent surface of the first transparent plate and the transparent surface of the first transparent plate. A liquid crystal having a refractive index variable according to a potential difference between electrodes provided on the one transparent plate and the first transmission plate.
【００２３】また、それぞれ入射光を順次透過させる透
過面に透明電極が設けられ、互いの該透過面を平行に対
向して配設される第一、第二の透明板と、上記第一の透
明板から第二の透明板に上記入射光を導く光路におい
て、透明電極が設けられた透過面を該第一、第二の透明
板の透過面に傾斜対向して配設される第一の透過板と、
上記第一の透明板の透過面と第一の透過板の透過面との
間、及び第一の透過板の透過面と第二の透明板の透過面
との間の各々に充填封入されて、上記第一の透明板と第
一の透過板、又は第一の透過板と第二の透明板に設けら
れた各々の電極間の電位差に応じて、屈折率を可変する
液晶とを備える。Further, a transparent electrode is provided on the transmissive surface for sequentially transmitting the incident light respectively, and the first and second transparent plates are disposed so that the transmissive surfaces are opposed to each other in parallel, and the above-mentioned first transparent plate. In the optical path for guiding the incident light from the transparent plate to the second transparent plate, the transparent surface provided with the transparent electrode is disposed so as to be obliquely opposed to the transparent surfaces of the first and second transparent plates. A transparent plate,
Filled and sealed between the transparent surface of the first transparent plate and the transparent surface of the first transparent plate, and between the transparent surface of the first transparent plate and the transparent surface of the second transparent plate. A liquid crystal whose refractive index is variable according to a potential difference between electrodes provided on the first transparent plate and the first transparent plate or the first transparent plate and the second transparent plate.
【００２４】また、それぞれ入射光を順次透過させる透
過面に透明電極が設けられ、互いの該透過面を平行に対
向して配設される第一、第二、第三の透明板と、上記第
一の透明板から第二の透明板に上記入射光を導く光路に
おいて、透明電極が設けられた透過面を該第一、第二の
透明板の透過面に傾斜対向して配設される第一の透過板
と、上記第二の透明板から第三の透明板に上記入射光を
導く光路において、透明電極が設けられた透過面を、上
記入射光の入射軸に対して上記第一の透過板の傾斜方向
と互いに直交するように該第二、第三の透明板の透過面
に傾斜対向して配設される第二の透過板と、上記第一の
透明板の透過面と第一の透過板の透過面との間、第一の
透過板の透過面と第二の透明板の透過面との間、該第二
の透明板の透過面と第二の透過板の透過面との間、及び
該第二の透過板の透過面と第三の透明板の透過面との間
に各々充填封入されて、上記第一の透明板と第一の透過
板、第一の透過板と上記第二の透明板、該第二の透明板
と第二の透過板、又は第二の透過板と第三の透明板に設
けられた各々の電極間の電位差に応じて、屈折率を可変
する液晶とを備える。Further, a transparent electrode is provided on a transmissive surface for sequentially transmitting incident light, and first, second, and third transparent plates are arranged so that the transmissive surfaces face each other in parallel. In the optical path for guiding the incident light from the first transparent plate to the second transparent plate, the transmissive surface provided with the transparent electrode is arranged so as to be obliquely opposed to the transmissive surfaces of the first and second transparent plates. In the optical path that guides the incident light from the first transparent plate and the second transparent plate to the third transparent plate, a transparent surface provided with a transparent electrode is used for the first axis with respect to the incident axis of the incident light. A second transmission plate obliquely arranged to face the transmission surfaces of the second and third transparent plates so as to be orthogonal to the inclination direction of the transmission plate, and the transmission surface of the first transparent plate. Between the transparent surface of the first transparent plate, between the transparent surface of the first transparent plate and the transparent surface of the second transparent plate, the transparent surface of the second transparent plate The first transparent plate and the first transparent plate are filled and sealed between the transparent surface of the second transparent plate and between the transparent surface of the second transparent plate and the transparent surface of the third transparent plate, respectively. Between the electrodes provided on the transparent plate, the first transparent plate and the second transparent plate, the second transparent plate and the second transparent plate, or the second transparent plate and the third transparent plate. And a liquid crystal whose refractive index is variable according to the potential difference of the.
【００２５】[0025]
【作用】本発明における光軸角可変装置は、互いに傾斜
対向される第一の透明板及び第一の透過板が設けられ、
該第一の透明板と第一の透過板との間に屈折率が可変設
定自在に液晶が充填封入されることにより、出射光の光
軸角を可変可能である。The optical axis angle varying device in the present invention is provided with the first transparent plate and the first transparent plate which are inclined and opposed to each other,
By filling and enclosing the liquid crystal between the first transparent plate and the first transparent plate so that the refractive index can be variably set, the optical axis angle of the emitted light can be changed.
【００２６】また、互いに平行に対向して順次入射光が
入射される第一、第二の透明板と、該第一、第二の透明
板の間で、傾斜対向される第一の透過板とが設けられ
て、上記各透明板と透過板との間に屈折率が可変設定自
在に液晶が充填封入されることにより、一方向軸の正負
両方向の広い範囲で出射光の光軸角を可変可能である。Further, there are provided first and second transparent plates which face each other in parallel and in which incident light is sequentially incident, and a first transmission plate which is inclined and opposed between the first and second transparent plates. The optical axis angle of the emitted light can be varied in a wide range in both positive and negative directions of the unidirectional axis by providing and enclosing the liquid crystal between the transparent plate and the transparent plate so that the refractive index can be variably set. Is.
【００２７】また、互いに平行に対向して順次入射光が
入射される第一、第二、第三の透明板と、該第一、第二
の透明板の間、及び該第二、第三の透明板の間で、該入
射光の入射軸に対する傾斜方向が互いに直交するように
傾斜対向される第一、第二の透過板とが設けられて、上
記各透明板と透過板との間に屈折率が可変設定自在に液
晶が充填封入されることにより、直交する二方向軸の正
負両方向の広い範囲で出射光の光軸角を可変可能であ
る。In addition, the first, second and third transparent plates, which face each other in parallel and in which incident light is sequentially incident, between the first and second transparent plates, and the second and third transparent plates. Between the plates, there are provided first and second transmission plates that are inclined and opposed so that the inclination directions of the incident light with respect to the incident axis are orthogonal to each other, and a refractive index is provided between the transparent plates and the transmission plates. By variably setting and filling the liquid crystal, it is possible to change the optical axis angle of the emitted light in a wide range in both positive and negative directions of the bidirectional axes that intersect at right angles.
【００２８】[0028]
【実施例】以下、本発明に係る光軸角可変装置の好まし
い実施例について図面を参照しながら説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of an optical axis angle varying device according to the present invention will be described below with reference to the drawings.
【００２９】本発明に係る光軸角可変装置１０は、図１
に示すように透明な第一の透明板１と第一の透過板４と
が略クサビ形状で頂角θ0となるように傾斜対向して配
設され、この第一の透明板１と第一の透過板４との間に
屈折率ｎ１の液晶ＬＣ１が封入充填されて、該第一の透
明板１の外周縁と第一の透過板４の外周縁とが接着材で
外周筒に接着接合して封止される。The optical axis angle varying device 10 according to the present invention is shown in FIG.
As shown in FIG. 1, the transparent first transparent plate 1 and the first transparent plate 4 are arranged in a substantially wedge shape and are inclined and opposed to each other at an apex angle θ 0 . A liquid crystal LC1 having a refractive index n1 is enclosed and filled between the first transparent plate 1 and the first transparent plate 4, and the outer peripheral edge of the first transparent plate 1 and the outer peripheral edge of the first transparent plate 4 are bonded to the outer peripheral tube with an adhesive. Joined and sealed.
【００３０】上記液晶ＬＣ１は、例えばシアンノビフェ
ニル混合系のＥ７等のネマテック液晶である。The liquid crystal LC1 is, for example, a nematic liquid crystal such as a cyanobiphenyl mixed system E7.
【００３１】上記第一の透明板１及び第一の透過板４
は、片面に端子に接続された透明電極が設けられた平行
平面なガラス板、又は傾斜対向する二平面を有する略ク
サビ形状の外形で内部に液晶を充填可能な透明なガラス
による筐体等により形成される。The above-mentioned first transparent plate 1 and first transparent plate 4
Is a parallel flat glass plate provided with a transparent electrode connected to a terminal on one surface, or a transparent glass housing that can be filled with liquid crystal inside with a substantially wedge-shaped outer shape having two flat surfaces that are inclined and opposed. It is formed.
【００３２】上記光軸角可変装置１０では、上記第一の
透明板１と第一の透過板４とに設けられた透明電極に接
続された端子から電力が供給され、該第一の透明板１と
第一の透過板４との間の電位差を可変設定することによ
り、該第一の透明板１と第一の透過板４との間の電界を
可変して、上記液晶ＬＣ１の屈折率を可変する。In the optical axis angle varying device 10, electric power is supplied from the terminals connected to the transparent electrodes provided on the first transparent plate 1 and the first transparent plate 4, and the first transparent plate is provided. 1 by variably setting the potential difference between the first transparent plate 1 and the first transparent plate 4, the electric field between the first transparent plate 1 and the first transparent plate 4 is changed, and the refractive index of the liquid crystal LC1. To change.
【００３３】この光軸角可変装置１０では、この光軸角
可変装置１０の外部の周辺の空気の屈折率を１とする
と、第一の透明板１の垂線方向から入射される入射光Ｌ
ｉｎが、該垂線方向に対して角度θ0傾いた方向、つま
り該垂線方向から角度（θ0＋θ1）傾いた方向で該第一
の透過板４から出射光Ｌｏｕｔが出射される場合、スネ
ルの法則に従い下記（１）式が成り立ち、該角度（θ0
＋θ1）の小さい角度範囲では、（１）式より近似式で
ある（２）式が成り立つ。In this optical axis angle varying device 10, assuming that the refractive index of the air outside the optical axis angle varying device 10 is 1, the incident light L incident from the direction perpendicular to the first transparent plate 1.
If in is, the angle theta 0 inclined direction, i.e. the angle from said vertical line direction (θ 0 + θ 1) in an inclined direction emitted light Lout from the first transmission plates 4 is emitted with respect to said vertical line direction, Snell law the following equation (1) holds in accordance with the, the angle (θ 0
In the small angle range of + θ 1 ), the approximate expression (2) is established from the expression (1).
【００３４】 ｎ１・ｓｉｎθ0＝ｓｉｎ（θ0＋θ1） （１）式 θ1＝（ｎ１−１）・θ0 （２）式 上記（２）式で、頂角θ0 を３°として、第一の透明板
１と第一の透過板４とに設けられた端子間に供給する電
力を可変設定して、該第一の透明板１と第一の透過板４
とに設けられた透明電極の電位差を可変することによ
り、液晶ＬＣ１の屈折率ｎ１を１．５〜１．８に可変設
定した際には、上記角度θ1が１．５°〜２．４°の範
囲で変化する。N1 · sin θ 0 = sin (θ 0 + θ 1 ) (1) Formula θ 1 = (n1-1) · θ 0 (2) Formula In the above formula (2), the apex angle θ 0 is 3 °. Electric power supplied between terminals provided on the first transparent plate 1 and the first transparent plate 4 is variably set, and the first transparent plate 1 and the first transparent plate 4 are set.
When the refractive index n1 of the liquid crystal LC1 is variably set to 1.5 to 1.8 by changing the potential difference of the transparent electrodes provided at and, the angle θ 1 is 1.5 ° to 2.4. It changes in the range of °.
【００３５】以上の構成による光軸角可変装置１０で
は、端子間の電位差を可変設定することにより、第一の
透明板１から入射された入射光Ｌｉｎが透過板４から出
射する出射光Ｌｏｕｔの出射角度θ1を可変させる。In the optical axis angle varying device 10 having the above structure, the incident light Lin incident from the first transparent plate 1 is changed to the outgoing light Lout emitted from the transparent plate 4 by variably setting the potential difference between the terminals. The emission angle θ 1 is changed.
【００３６】従って、上記光軸角可変装置１０は、第一
の透明板１及び第一の透過板４の大口径化により大口径
化が容易で高解像度化が容易である。また、ガラスで形
成された筐体に液晶を充填封入して構成され、構成が簡
易で長期耐久性に優れ小型軽量で、光軸角の可変範囲が
広い光軸角可変装置を実現する。Therefore, in the optical axis angle varying device 10, the diameter of the first transparent plate 1 and the first transmitting plate 4 can be increased to easily increase the diameter and increase the resolution. Further, the present invention realizes an optical axis angle varying device having a simple configuration, excellent long-term durability, small size and light weight, and a wide variable range of the optical axis angle, which is configured by filling and enclosing liquid crystal in a case made of glass.
【００３７】また、上記光軸角可変装置１０は、上記第
一の透明板１及び第一の透過板４の大きさや、該第一の
透明板１及び第一の透過板４の透過周波数帯や、該第一
の透明板１及び第一の透過板４に設けられた透明電極間
の電位差や、頂角θ0の大きさや、液晶ＬＣ１の屈折率
等を光軸角可変装置１０の仕様に合わせて選択すること
により、出射光の光軸角を可変させる目的で広く使用可
能である。Further, the optical axis angle varying device 10 includes the sizes of the first transparent plate 1 and the first transmitting plate 4 and the transmission frequency band of the first transparent plate 1 and the first transmitting plate 4. The potential difference between the transparent electrodes provided on the first transparent plate 1 and the first transparent plate 4, the size of the apex angle θ 0 , the refractive index of the liquid crystal LC1, and the like are specified in the optical axis angle varying device 10. It can be widely used for the purpose of changing the optical axis angle of the emitted light by selecting it in accordance with.
【００３８】次に、上記２個の光軸角可変装置１０が互
いの頂角が鎖角をなすように一体に組み合わせられた本
発明の第２の実施例に係る光軸角可変装置１５ついて、
図面を参照して説明する。ここで、上記実施例１と同一
の構成部材は、その説明を省略する。Next, the optical axis angle varying device 15 according to the second embodiment of the present invention, in which the two optical axis angle varying devices 10 are integrally combined so that their apex angles form chain angles, will be described. ,
This will be described with reference to the drawings. Here, the description of the same constituent members as those in the first embodiment will be omitted.
【００３９】本発明の第２の実施例に係る光軸角可変装
置１５は、図２に示すように第一の透明板１と第一の透
過板４ａとが略クサビ形状で頂角θ0となるように傾斜
対向して配設され、第二の透明板２と第一の透過板４ｂ
とが略クサビ形状で頂角θ0となるように傾斜対向して
配設されて、上記第一の透明板１と第一の透過板４ａと
の間に屈折率ｎ２の液晶ＬＣ１が封入充填され、上記第
二の透明板２と第一の透過板４ｂとの間に屈折率ｎ１の
液晶ＬＣ２が封入充填されて、上記２個の頂角θ0が互
いに鎖角をなし、上記第一の透過板４ａ、４ｂが重なり
合うように接合されて、該第一、第二の透明板１、２の
外周縁と第一の透過板４ａ、４ｂの外周縁とが接着材で
外周筒に接着接合して上記液晶ＬＣ１、ＬＣ２が封止さ
れる。In the optical axis angle varying device 15 according to the second embodiment of the present invention, as shown in FIG. 2, the first transparent plate 1 and the first transmitting plate 4a are substantially wedge-shaped and the apex angle θ 0. The second transparent plate 2 and the first transparent plate 4b are arranged so as to be inclined and opposed to each other.
And are substantially wedge-shaped and are inclined and opposed to each other so as to have an apex angle θ 0, and a liquid crystal LC1 having a refractive index n2 is sealed and filled between the first transparent plate 1 and the first transmission plate 4a. Then, the liquid crystal LC2 having a refractive index n1 is enclosed and filled between the second transparent plate 2 and the first transparent plate 4b, and the two apex angles θ 0 form chain angles with each other. The transparent plates 4a and 4b are joined so as to overlap each other, and the outer peripheral edges of the first and second transparent plates 1 and 2 and the outer peripheral edges of the first transparent plates 4a and 4b are bonded to the outer peripheral tube with an adhesive. The liquid crystals LC1 and LC2 are sealed by bonding.
【００４０】上記第一の透過板４ａと第一の透過板４ｂ
とは、重なり合うように一体に組み合わせられて接合さ
れて第一の透過板４を形成する。The above-mentioned first transmission plate 4a and first transmission plate 4b
And are integrally combined and joined so as to overlap with each other to form the first transmission plate 4.
【００４１】以上のように光軸角可変装置１５は、互い
の頂角θ0が鎖角をなすように２個の上記光軸角可変装
置１０が一体に組み合わせられて構成されて、上記液晶
ＬＣ１、ＬＣ２の屈折率を各々独立して可変設定するこ
とにより、上記第一の透明板１から入射された入射光Ｌ
ｉｎが、この入射光Ｌｉｎの入射軸に対する上記第一の
透過板４の傾斜方向において、出射角度を正負両方向に
可変可能に上記第二の透明板２から出射光Ｌｏｕｔとし
て出射する。As described above, the optical axis angle varying device 15 is constructed by integrally combining the two optical axis angle varying devices 10 so that the apex angles θ 0 form chain angles. Incident light L incident from the first transparent plate 1 is set by independently setting the refractive indices of LC1 and LC2 to be variable.
In, in the tilt direction of the first transmission plate 4 with respect to the incident axis of the incident light Lin, the light is emitted as outgoing light Lout from the second transparent plate 2 so that the outgoing angle can be changed in both positive and negative directions.
【００４２】従って、上記光軸角可変装置１５は、第
一、第二の透明板１、２及び第一の透過板４ａ、４ｂの
大口径化により大口径化が容易で高解像度化が容易であ
る。また、ガラスで形成された筐体に液晶を充填封入し
て構成され、構成が簡易で長期耐久性に優れ小型軽量
で、光軸角の可変範囲が広い光軸角可変装置を実現す
る。Therefore, in the optical axis angle varying device 15, the diameters of the first and second transparent plates 1 and 2 and the first transmission plates 4a and 4b can be increased to easily increase the diameter and the resolution. Is. Further, the present invention realizes an optical axis angle varying device having a simple configuration, excellent long-term durability, small size and light weight, and a wide variable range of the optical axis angle, which is configured by filling and enclosing liquid crystal in a case made of glass.
【００４３】また、上記光軸角可変装置１５は、上記第
一、第二の透明板１、２及び第一の透過板４の大きさ
や、該第一、第二の透明板１、２及び第一の透過板４の
透過周波数帯や、該第一、第二の透明板１、２及び第一
の透過板４に設けられた透明電極間の電位差や、頂角θ
0の大きさや、液晶ＬＣ１の屈折率等を光軸角可変装置
１５の仕様に合わせて選択することにより、出射光の光
軸角を一方向軸における正負両方向に可変させる目的で
広く使用可能である。Further, the optical axis angle varying device 15 includes the sizes of the first and second transparent plates 1 and 2 and the first transmitting plate 4, and the first and second transparent plates 1 and 2. The transmission frequency band of the first transmission plate 4, the potential difference between the first and second transparent plates 1 and 2 and the transparent electrodes provided on the first transmission plate 4, and the apex angle θ.
By selecting the size of 0 , the refractive index of the liquid crystal LC1 and the like according to the specifications of the optical axis angle varying device 15, it can be widely used for the purpose of varying the optical axis angle of the emitted light in both positive and negative directions in one direction axis. is there.
【００４４】次に、本発明の第３の実施例に係る光軸角
可変装置２０ついて、図面を参照して説明する。ここ
で、上記第２の実施例と同一の構成部材は、その説明を
省略する。Next, an optical axis angle varying device 20 according to a third embodiment of the present invention will be described with reference to the drawings. Here, the description of the same components as those of the second embodiment will be omitted.
【００４５】上記光軸角可変装置２０は、図３に示すよ
うに、互いに平行に対向する第一、第二の透明板１、２
と、この第一の透明板１と第二の透明板２との間に位置
し、該透明板１と透明板２との互いの頂角が鎖角をな
し、該透明板２と略クサビ形状で頂角θ0となるように
傾斜対向する透過板４と、この第一の透明板１と第一の
透過板４との間に屈折率ｎ２の第一の液晶ＬＣ１が封入
充填され、第二の透明板２と第一の透過板４との間に屈
折率ｎ１の液晶ＬＣ２が封入充填されて、該第一、第二
の透明板１、２の外周縁と第一の透過板４の外周縁とを
接着材で外周筒に接着接合して上記液晶ＬＣ１、ＬＣ２
が封止される。As shown in FIG. 3, the optical axis angle varying device 20 includes first and second transparent plates 1 and 2 facing each other in parallel.
Is located between the first transparent plate 1 and the second transparent plate 2, and the apex angles of the transparent plate 1 and the transparent plate 2 form chain angles, and the transparent plate 2 and the wedge plate are substantially wedge-shaped. A first liquid crystal LC1 having a refractive index n2 is enclosed and filled between the first transparent plate 1 and the first transparent plate 4, and the transparent plate 4 that is inclined and opposed to have a vertical angle θ 0 . A liquid crystal LC2 having a refractive index of n1 is sealed and filled between the second transparent plate 2 and the first transparent plate 4, and the outer peripheral edges of the first and second transparent plates 1 and 2 and the first transparent plate. The liquid crystal LC1 and LC2 are formed by adhesively bonding the outer peripheral edge of No. 4 to the outer peripheral cylinder with an adhesive.
Is sealed.
【００４６】以上の構成による光軸角可変装置２０は、
第一、第二の透明板１、２の間において、互いの頂角θ
0を鎖角となすように設けられた第一の透過板４によ
り、上記液晶ＬＣ１、ＬＣ２が分離して区切られて、該
液晶ＬＣ１、ＬＣ２の屈折率を各々独立して可変設定す
ることにより、上記第一の透明板１から入射された入射
光である入射光Ｌｉｎが、この入射光Ｌｉｎの入射軸に
対する上記第一の透過板４の傾斜方向において、出射角
度を正負両方向に可変可能に上記第二の透明板２から出
射光Ｌｏｕｔとして出射する。The optical axis angle varying device 20 having the above structure is
The apex angle θ between the first and second transparent plates 1 and 2
The liquid crystal LC1 and LC2 are separated and separated by the first transmission plate 4 provided so that the chain angle is 0 , and the refractive indices of the liquid crystal LC1 and LC2 are variably set independently. The incident light Lin, which is the incident light incident from the first transparent plate 1, is capable of changing the emission angle in both positive and negative directions in the inclination direction of the first transmission plate 4 with respect to the incident axis of the incident light Lin. The emitted light Lout is emitted from the second transparent plate 2.
【００４７】この光軸角可変装置２０では、図４に示す
ように光軸角可変装置２０の外部の周辺の空気の屈折率
を１とすると、第一の透明板１に入射される入射光であ
る入射光Ｌｉｎが、該入射方向に角度θ2傾いた方向、
つまり第一の透過板４の垂線方向から角度（θ0−θ2）
傾いた方向で該第一の透過板４から透過光Ｌｋが出射さ
れる場合、スネルの法則に従い下記（３）式が成り立
ち、該角度（θ0−θ2）の小さい範囲では、（３）式よ
り近似式である（４）式が成り立つ。In this optical axis angle varying device 20, assuming that the refractive index of the air around the optical axis angle varying device 20 is 1 as shown in FIG. 4, the incident light incident on the first transparent plate 1 will be described. The incident light Lin which is a direction inclined by an angle θ 2 with respect to the incident direction,
That is, the angle (θ 0 −θ 2 ) from the direction perpendicular to the first transmission plate 4
When the transmitted light Lk is emitted from the first transmission plate 4 in the inclined direction, the following equation (3) is established according to Snell's law, and in the range where the angle (θ 0 −θ 2 ) is small, (3) Equation (4), which is an approximate equation, holds from the equation.
【００４８】 ｎ２・ｓｉｎθ0＝ｎ１・ｓｉｎ（θ0−θ2） （３）式 ｎ２・θ0＝ｎ１・（θ0−θ2） （４）式 また、上記第一の透過板４の垂線方向から角度θ2傾い
た方向から出射される透過光Ｌｋが、第二の透明板２に
該第二の透明板２の垂線方向から角度θ2傾いた方向か
ら入射されて、該第二の透明板２の垂線方向から角度θ
1傾いた方向で出射光Ｌｏｕｔが出射される場合、スネ
ルの法則に従い下記（５）式が成り立ち、該角度θ2の
小さい範囲では、（５）式より近似式（６）式が成り立
つ。N2 · sin θ 0 = n1 · sin (θ 0 −θ 2 ) (3) Formula n2 · θ 0 = n1 · (θ 0 −θ 2 ) (4) Formula Also, the first transmission plate 4 has The transmitted light Lk emitted from the direction inclined by the angle θ 2 from the perpendicular direction is incident on the second transparent plate 2 from the direction inclined by the angle θ 2 from the perpendicular direction of the second transparent plate 2, and the second Angle from the direction perpendicular to the transparent plate 2 of
When the outgoing light Lout is emitted in the direction inclined by one , the following formula (5) is established according to Snell's law, and in the small range of the angle θ 2 , the approximate formula (6) is established from the formula (5).
【００４９】 ｓｉｎθ1＝ｎ１・ｓｉｎθ2 （５）式 θ2＝θ1／ｎ１ （６）式 上記（４）式に（６）式を代入すると下記（７）式が成
り立つ。[0049] sinθ 1 = n1 · sinθ 2 ( 5) Equation θ 2 = θ 1 / n1 ( 6) Equation (4) Substituting formula (6) below (7) holds.
【００５０】 θ1＝（ｎ１−ｎ２）・θ0 （７）式 上記（７）式で、頂角θ0 を３°として、第一の透明板
１と第一の透過板４とに設けられた端子間、及び第一の
透過板４と第二の透明板２とに設けられた端子間に供給
する電力を可変設定して、第一の透明板１と第一の透過
板４とに設けられた透明電極の電位差、及び第一の透過
板４と第二の透明板２とに設けられた透明電極の電位差
を可変することにより、上記液晶ＬＣ１、ＬＣ２の屈折
率差（ｎ１−ｎ２）を１．５〜１．８に可変設定した際
には、角度θ1が＋０．９°〜−０．９°に変化する。Θ 1 = (n 1 −n 2) · θ 0 (7) Equation (7) In the above equation (7), the apex angle θ 0 is set to 3 °, and it is provided on the first transparent plate 1 and the first transmission plate 4. The powers supplied between the terminals and between the terminals provided on the first transparent plate 4 and the second transparent plate 2 are variably set, and the first transparent plate 1 and the first transparent plate 4 are By changing the potential difference between the transparent electrodes provided on the first transparent plate and the transparent electrode provided on the first transparent plate 4 and the second transparent plate 2, the refractive index difference (n1- When n2) is variably set to 1.5 to 1.8, the angle θ 1 changes to + 0.9 ° to −0.9 °.
【００５１】以上の構成による光軸角可変装置２０は、
端子間の電位差を可変設定することにより、第一の透明
板１から入射された入射光Ｌｉｎが、この入射光Ｌｉｎ
の入射軸に対する上記第一の透過板４の傾斜方向におい
て、出射角度を正負両方向に可変可能に上記第二の透明
板２から出射光Ｌｏｕｔとして出射する。The optical axis angle varying device 20 having the above structure is
By variably setting the potential difference between the terminals, the incident light Lin incident from the first transparent plate 1 is changed to the incident light Lin.
In the tilting direction of the first transmission plate 4 with respect to the incident axis, the output angle is variable in both positive and negative directions and is emitted as output light Lout from the second transparent plate 2.
【００５２】従って、上記光軸角可変装置２０は、第
一、第二の透明板１、２及び第一の透過板４の大口径化
により大口径化が容易で高解像度化が容易である。ま
た、ガラスで形成された筐体に液晶を充填封入して構成
され、構成が簡易で長期耐久性に優れ小型軽量で、光軸
角の可変範囲が広い光軸角可変装置を実現する。Therefore, in the optical axis angle varying device 20, the diameters of the first and second transparent plates 1 and 2 and the first transmission plate 4 can be increased so that the diameter can be easily increased and the resolution can be easily increased. . Further, the present invention realizes an optical axis angle varying device having a simple configuration, excellent long-term durability, small size and light weight, and a wide variable range of the optical axis angle, which is configured by filling and enclosing liquid crystal in a case made of glass.
【００５３】また、上記光軸角可変装置２０は、上記第
一、第二の透明板１、２及び第一の透過板４の大きさ
や、該第一、第二の透明板１、２及び第一の透過板４の
透過周波数帯や、該第一、第二の透明板１、２及び第一
の透過板４に設けられた透明電極間の電位差や、頂角θ
0の大きさや、液晶ＬＣ１の屈折率等を光軸角可変装置
２０の仕様に合わせて選択することにより、出射光の光
軸角を一方向軸における正負両方向に可変させる目的で
広く使用可能である。Further, the optical axis angle varying device 20 includes the sizes of the first and second transparent plates 1 and 2 and the first transmitting plate 4, and the first and second transparent plates 1 and 2 and The transmission frequency band of the first transmission plate 4, the potential difference between the first and second transparent plates 1 and 2 and the transparent electrodes provided on the first transmission plate 4, and the apex angle θ.
By selecting the size of 0 , the refractive index of the liquid crystal LC1, etc. according to the specifications of the optical axis angle varying device 20, it can be widely used for the purpose of varying the optical axis angle of the emitted light in both positive and negative directions in one direction axis. is there.
【００５４】次に、上記２個の光軸角可変装置２０が互
いの透過板の傾斜方向を直交させて一体に組み合わせた
本発明の第４の実施例に係る光軸角可変装置２５つい
て、図面を参照して説明する。ここで、上記第３の実施
例と同一の構成部材には、同一符号を付してその説明を
省略する。Next, the optical axis angle varying device 25 according to the fourth embodiment of the present invention in which the above two optical axis angle varying devices 20 are integrally combined by making the inclination directions of the transmission plates orthogonal to each other, A description will be given with reference to the drawings. Here, the same components as those of the third embodiment are designated by the same reference numerals and the description thereof will be omitted.
【００５５】本発明に係る光軸角可変装置２５は、図５
に示すように互いに平行に対向する第一、第二の透明板
１、２ａと、この第一の透明板１と第二の透明板２ａと
の間に位置し、該第一の透明板１と第二の透明板２ａと
の互いの頂角が鎖角をなして傾斜対向する第一の透過板
４と、互いに平行に対向する第二、第三の透明板２ｂ、
３と、この第二の透明板２ｂと第三の透明板３との間に
位置し、該第二透明板２ｂと第三の透明板３との互いの
頂角が鎖角をなして傾斜対向する第二の透過板５と、上
記第一の透明板１と第一の透過板４との間、第一の透過
板４と第二の透明板２ａとの間、第二の透明板２ｂと第
二の透過板５との間、及び第二の透過板５と第三の透明
板３との間に各々充填封入される液晶ＬＣ１、ＬＣ２、
ＬＣ３、ＬＣ４とを備えており、上記第一の透明板１の
垂線方向に対する第一、第二の透過板４、５の傾斜方向
が互いに直交するように、上記第二の透明板２ａ、２ｂ
が接着接合により一体に組み合わせて形成されて、該第
一、第二、第三の透明板１、２ａ、２ｂ、３の外周縁と
第一、第二の透過板４の外周縁とを接着材で外周筒に接
着接合して上記液晶ＬＣ１、ＬＣ２、ＬＣ３、ＬＣ４が
封止される。The optical axis angle varying device 25 according to the present invention is shown in FIG.
As shown in FIG. 1, first and second transparent plates 1 and 2a that face each other in parallel, and the first transparent plate 1 and 2a are located between the first transparent plate 1 and the second transparent plate 2a. And the second transparent plate 2a, the apex angle of each other forms a chain angle and is inclined and opposed, and the first transmission plate 4 and the second and third transparent plates 2b that are parallelly opposed to each other,
3 between the second transparent plate 2b and the third transparent plate 3, and the apex angles of the second transparent plate 2b and the third transparent plate 3 are inclined to form a chain angle. A second transparent plate 5 facing each other, between the first transparent plate 1 and the first transparent plate 4, between the first transparent plate 4 and the second transparent plate 2a, and a second transparent plate. Liquid crystals LC1 and LC2, which are filled and sealed between 2b and the second transparent plate 5, and between the second transparent plate 5 and the third transparent plate 3, respectively.
LC3 and LC4, and the second transparent plates 2a and 2b so that the inclination directions of the first and second transmission plates 4 and 5 with respect to the perpendicular direction of the first transparent plate 1 are orthogonal to each other.
Are integrally formed by adhesive bonding, and the outer peripheral edges of the first, second, and third transparent plates 1, 2a, 2b, and 3 are bonded to the outer peripheral edges of the first and second transparent plates 4. The liquid crystal LC1, LC2, LC3, LC4 is sealed by adhesive bonding to the outer peripheral cylinder with a material.
【００５６】上記第二の透明板２ａと第二の透明板２ｂ
とは、重なり合うように一体に組み合わせられて接合さ
れて第二の透明板２を形成する。The second transparent plate 2a and the second transparent plate 2b.
And are integrally combined and joined so as to overlap with each other to form the second transparent plate 2.
【００５７】この光軸角可変装置２５は、液晶ＬＣ１、
ＬＣ２の屈折率を該液晶ＬＣ１、ＬＣ２が封入充填され
る第一の透明板１の端子と第一の透過板４の端子との
間、及び第一の透過板４の端子と第二の透明板２ａの端
子との間の電位差を可変設定することにより、第一の透
明板１から入射された入射光Ｌｉｎを、この入射光Ｌｉ
ｎの入射方向に対する該第一の透過板４の傾斜方向にお
けるＹ方向の＋方向のＹ１から−方向のＹ２まで透過光
Ｌｋの出射角を可変して出射する。The optical axis angle varying device 25 includes a liquid crystal LC1,
The refractive index of LC2 is set between the terminal of the first transparent plate 1 and the terminal of the first transparent plate 4 in which the liquid crystals LC1 and LC2 are sealed and filled, and between the terminal of the first transparent plate 4 and the second transparent plate. By variably setting the potential difference between the terminal of the plate 2a and the terminal, the incident light Lin incident from the first transparent plate 1 is converted into the incident light Li.
The emission angle of the transmitted light Lk is varied and emitted from Y1 in the + direction of Y direction to Y2 in the − direction in the inclination direction of the first transmission plate 4 with respect to the incident direction of n.
【００５８】また、この光軸角可変装置２５は、液晶Ｌ
Ｃ３、ＬＣ４の屈折率を該液晶ＬＣ３、ＬＣ４が封入充
填される第二の透明板２ｂの端子と第二の透過板５の端
子との間、及び第二の透過板５の端子と第三の透明板３
の端子との間の電位差を可変設定することにより、第二
の透明板２ｂから入射された透過光Ｌｋを、この入射光
Ｌｉｎの入射方向に対する該第二の透過板５の傾斜方向
におけるＸ方向の＋方向のＸ１から−方向のＸ２まで出
射光Ｌｏｕｔの出射角を可変して出射する。The optical axis angle varying device 25 is composed of the liquid crystal L.
The refractive indices of C3 and LC4 are set between the terminals of the second transparent plate 2b and the terminals of the second transparent plate 5 in which the liquid crystals LC3 and LC4 are sealed and filled, and between the terminals of the second transparent plate 5 and the third. Transparent plate 3
By variably setting the potential difference between the second transparent plate 2b and the terminal, the transmitted light Lk incident from the second transparent plate 2b is directed in the X direction in the inclination direction of the second transparent plate 5 with respect to the incident direction of the incident light Lin. The emission angle of the emitted light Lout is changed from X1 in the + direction to X2 in the − direction.
【００５９】以上の構成による光軸角可変装置２５は、
各端子間の電位差を可変設定することにより、第一の透
明板１から入射された入射光Ｌｉｎが、この入射光Ｌｉ
ｎの入射方向に対する該第一、第二の透過板４、５の傾
斜方向であるＹ、Ｘの二方向において、第三の透明板３
から出射する出射光Ｌｏｕｔの出射角度を正負の両方向
に可変させる。The optical axis angle varying device 25 having the above construction is
By variably setting the potential difference between the terminals, the incident light Lin incident from the first transparent plate 1 is changed to the incident light Li.
In the two directions of Y and X which are the inclination directions of the first and second transmission plates 4 and 5 with respect to the incident direction of n, the third transparent plate 3
The emission angle of the emission light Lout emitted from is changed in both positive and negative directions.
【００６０】従って、上記光軸角可変装置２５は、第
一、第二、第三の透明板１、２、３及び第一、第二の透
過板４、５の大口径化により大口径化が容易で高解像度
化が容易である。また、ガラスで形成された筐体に液晶
を充填封入して構成され、構成が簡易で長期耐久性に優
れ小型軽量で、光軸角の可変範囲が広い光軸角可変装置
を実現する。Therefore, the optical axis angle varying device 25 has a large diameter by increasing the diameters of the first, second and third transparent plates 1, 2, 3 and the first and second transmitting plates 4, 5. It is easy and high resolution is easy. Further, the present invention realizes an optical axis angle varying device having a simple configuration, excellent long-term durability, small size and light weight, and a wide variable range of the optical axis angle, which is configured by filling and enclosing liquid crystal in a case made of glass.
【００６１】また、上記光軸角可変装置２５は、上記第
一、第二、第三の透明板１、２、３及び第一、第二の透
過板４、５の大きさや、該第一、第二、第三の透明板
１、２、３及び第一、第二の透過板４、５の透過周波数
帯や、該第一、第二、第三の透明板１、２、３及び第
一、第二の透過板４、５に設けられた透明電極間の電位
差や、頂角θ0の大きさや、液晶ＬＣ１、ＬＣ２、ＬＣ
３、ＬＣ４の屈折率等を光軸角可変装置２５の仕様に合
わせて選択することにより、出射光の光軸角を直交する
二方向軸の正負両方向に可変させる目的で広く使用可能
である。Further, the optical axis angle varying device 25 includes the sizes of the first, second and third transparent plates 1, 2 and 3 and the first and second transmitting plates 4 and 5, and the first and second transparent plates. , The transmission frequency bands of the second and third transparent plates 1, 2 and 3 and the first and second transparent plates 4 and 5, and the first, second and third transparent plates 1, 2, 3 and The potential difference between the transparent electrodes provided on the first and second transmission plates 4 and 5, the size of the apex angle θ 0 , the liquid crystals LC1, LC2, and LC.
3. By selecting the refractive index of LC4 and the like according to the specifications of the optical axis angle varying device 25, it can be widely used for the purpose of varying the optical axis angle of emitted light in both positive and negative directions of two orthogonal axes.
【００６２】次に、本発明の第５の実施例に係る光軸角
可変装置３０ついて、図面を参照して説明する。ここ
で、上記第４の実施例と同一の構成部材は、その説明を
省略する。Next, an optical axis angle varying device 30 according to a fifth embodiment of the present invention will be described with reference to the drawings. Here, the description of the same components as those of the fourth embodiment will be omitted.
【００６３】本発明に係る光軸角可変装置３０は、図６
に示すように互いに平行に対向して配列される第一、第
二、第三の透明板１、２、３と、上記第一、第二の透明
板１、２の対向面に対し互いに傾斜対向した第一の透過
板４と、上記第二、第三の透明板２、３の対向面に対し
互いに傾斜対向した第二の透過板５と、上記各透明板
１、２、３と透過板４、５との間に封入及び封止される
液晶ＬＣ１、ＬＣ２、ＬＣ３、ＬＣ４とを有する。The optical axis angle varying device 30 according to the present invention is shown in FIG.
, The first, second and third transparent plates 1, 2 and 3 are arranged parallel to each other and are inclined with respect to the facing surfaces of the first and second transparent plates 1 and 2. The first transparent plate 4 facing each other, the second transparent plate 5 obliquely facing each other with respect to the facing surfaces of the second and third transparent plates 2 and 3, and the transparent plates 1, 2 and 3 transparent to each other. It has liquid crystals LC1, LC2, LC3, LC4 sealed and sealed between the plates 4 and 5.
【００６４】上記第一、第二、第三の透明板１、２、３
は、各々透明な板ガラスを基板として、例えば該第一、
第三の透明板１、３の基板の片面及び第二の透明板２の
基板の両面には、各々透明電極が形成されて、該各透明
電極には電力を供給する各端子が接続され該接続部以外
の該各透明電極は絶縁されている。The above-mentioned first, second and third transparent plates 1, 2, 3
Is a transparent plate glass as a substrate, for example, the first,
Transparent electrodes are formed on one surface of the substrates of the third transparent plates 1 and 3 and on both surfaces of the substrate of the second transparent plate 2, respectively. Each of the transparent electrodes other than the connection portion is insulated.
【００６５】上記第一、第二の透過板４、５は、上記第
一の透明基板１の垂線に対する互いの傾斜方向が直交す
るように配設される。The first and second transmission plates 4 and 5 are arranged so that their inclination directions are orthogonal to the perpendicular of the first transparent substrate 1.
【００６６】上記第一、第二の透過板４、５は、例えば
各々透明な板ガラスを基板として、両面には各々透明電
極が形成されて、該各透明電極には電力を供給する各端
子が接続され該接続部以外の該各透明電極は絶縁され
る。The first and second transmission plates 4 and 5 are each made of, for example, a transparent plate glass as a substrate, have transparent electrodes formed on both sides thereof, and have terminals for supplying electric power to the respective transparent electrodes. Each of the transparent electrodes that are connected and other than the connection portion is insulated.
【００６７】上記液晶ＬＣ１、ＬＣ２、ＬＣ３、ＬＣ４
は、例えばシアンノビフェニル混合系のＥ７等のネマテ
ック液晶であり、上記第一、第二、第三の透明板１、
２、３の外周縁、及び第一、第二の透過板４、５の外周
縁とが接着材で接着接合される外周筒が設けられ、該外
周筒により上記第一の透明板１と第一の透過板４との
間、第一の透過板４と第二の透明板２との間、第二の透
明板２と第二の透過板５との間、及び第二の透過板５と
第三の透明板３との間毎に封入及び封止される。The above liquid crystals LC1, LC2, LC3, LC4
Is, for example, a nematic liquid crystal such as E7 of cyanobiphenyl mixed system, and the first, second and third transparent plates 1,
An outer peripheral tube is provided in which the outer peripheral edges of the second and third transparent plates and the outer peripheral edges of the first and second transmission plates 4 and 5 are bonded and bonded with an adhesive material. Between the first transparent plate 4, the first transparent plate 4 and the second transparent plate 2, the second transparent plate 2 and the second transparent plate 5, and the second transparent plate 5. And the third transparent plate 3 are sealed and sealed.
【００６８】以上の構成による光軸角可変装置３０は、
各端子間の電位差を可変設定することにより、第一の透
明板１から入射された入射光Ｌｉｎが、この入射光Ｌｉ
ｎの入射方向に対する該第一、第二の透過板４、５の傾
斜方向であるＹ、Ｘの二方向において、第三の透明板３
から出射する出射光Ｌｏｕｔの出射角度を正負の両方向
に可変させる。The optical axis angle varying device 30 having the above structure is
By variably setting the potential difference between the terminals, the incident light Lin incident from the first transparent plate 1 is changed to the incident light Li.
In the two directions of Y and X which are the inclination directions of the first and second transmission plates 4 and 5 with respect to the incident direction of n, the third transparent plate 3
The emission angle of the emission light Lout emitted from is changed in both positive and negative directions.
【００６９】従って、上記光軸角可変装置３０は、第
一、第二、第三の透明板１、２、３及び第一、第二の透
過板４、５の大口径化により大口径化が容易で高解像度
化が容易である。また、ガラスで形成された筐体に液晶
を充填封入して構成され、構成が簡易で長期耐久性に優
れ小型軽量で、光軸角の可変範囲が広い光軸角可変装置
を実現する。Therefore, the optical axis angle varying device 30 has a large diameter by increasing the diameters of the first, second and third transparent plates 1, 2, 3 and the first and second transmitting plates 4, 5. It is easy and high resolution is easy. Further, the present invention realizes an optical axis angle varying device having a simple configuration, excellent long-term durability, small size and light weight, and a wide variable range of the optical axis angle, which is configured by filling and enclosing liquid crystal in a case made of glass.
【００７０】また、上記光軸角可変装置３０は、上記第
一、第二、第三の透明板１、２、３及び第一、第二の透
過板４、５の大きさや、該第一、第二、第三の透明板
１、２、３及び第一、第二の透過板４、５の透過周波数
帯や、該第一、第二、第三の透明板１、２、３及び第
一、第二の透過板４、５に設けられた透明電極間の電位
差や、頂角θ0の大きさや、液晶ＬＣ１、ＬＣ２、ＬＣ
３、ＬＣ４の屈折率等を光軸角可変装置３０の仕様に合
わせて選択することにより、出射光の光軸角を直交する
二方向軸の正負両方向に可変させる目的で広く使用可能
である。Further, the optical axis angle varying device 30 includes the sizes of the first, second and third transparent plates 1, 2 and 3 and the first and second transparent plates 4 and 5, and the first and second transparent plates 4 and 5. , The transmission frequency bands of the second and third transparent plates 1, 2 and 3 and the first and second transparent plates 4 and 5, and the first, second and third transparent plates 1, 2, 3 and The potential difference between the transparent electrodes provided on the first and second transmission plates 4 and 5, the size of the apex angle θ 0 , the liquid crystals LC1, LC2, and LC.
3. By selecting the refractive index of LC4 and the like according to the specifications of the optical axis angle varying device 30, it can be widely used for the purpose of varying the optical axis angle of the emitted light in both positive and negative directions of two orthogonal axes.
【００７１】次に、上記光軸角可変装置３０が、例えば
図７に示すようにハンデイタイプのビデオカメラ装置の
手振れ補正装置に設けられた場合について説明する。Next, a case will be described in which the optical axis angle varying device 30 is provided in a camera shake correcting device of a handy type video camera device as shown in FIG. 7, for example.
【００７２】上記手振れ補正装置は、被写体からの撮像
光である入射光Ｌｉｎが入射されて出射光Ｌｏｕｔを出
射する光軸角可変装置３０と、この出射光Ｌｏｕｔが入
射される対物レンズ６と、該対物レンズ６により集光さ
れた出射光Ｌｏｕｔが導かれて、該出射光Ｌｏｕｔを光
電変換して電気信号である撮像信号を生成するＣＣＤイ
メージセンサ等の撮像素子が設けられた撮像部７と、該
ハンデイタイプのビデオカメラ装置のＸ、Ｙの二方向の
手振れを検出する振動ジャイロ等の角速度センサ８とが
備えられる。The camera shake correction device includes an optical axis angle varying device 30 for emitting incident light Lin, which is image pickup light from a subject, and emitting outgoing light Lout, and an objective lens 6 for receiving the outgoing light Lout. An image pickup unit 7 provided with an image pickup device such as a CCD image sensor which guides the emitted light Lout condensed by the objective lens 6 and photoelectrically converts the emitted light Lout to generate an image pickup signal which is an electric signal. An angular velocity sensor 8 such as a vibration gyro that detects camera shake in the X and Y directions of the handy type video camera device is provided.
【００７３】上記手振れ補正装置は、該角速度センサ８
の検出結果に応じて、各端子間の電位差を可変設定する
ことにより、光軸角可変装置３０の液晶ＬＣ１、ＬＣ
２、ＬＣ３、ＬＣ４の屈折率を可変設定して、手振れを
補正する方向に出射光Ｌｏｕｔの光軸角を可変設定する
ことが可能である。The above-mentioned camera shake correction device is provided with the angular velocity sensor 8
The liquid crystal LC1, LC of the optical axis angle varying device 30 is variably set by variably setting the potential difference between the terminals in accordance with the detection result.
It is possible to variably set the refractive indices of 2, LC3 and LC4 and variably set the optical axis angle of the emitted light Lout in the direction in which the camera shake is corrected.
【００７４】ここで、上記Ｘ方向は、撮影時にビデオカ
メラを左右に振って撮る手法のパンニングの方向に対応
する。また、上記Ｙ方向は、撮影時にビデオカメラを上
から下、又は下から上に動かして撮る手法のチルティン
グの方向に対応する。Here, the X direction corresponds to the panning direction of the technique of swinging the video camera left and right at the time of shooting. Further, the Y direction corresponds to the tilting direction of a technique of moving a video camera from top to bottom or from bottom to top during shooting.
【００７５】上記手振れ補正装置では、例えば、上記角
速度センサ８で被写体Ａからの入射光Ｌｉｎが手振れ等
の外乱によりＸ方向に角度φの角度変位が有ることが検
出された際には、第三、第四の液晶ＬＣ３、ＬＣ４の屈
折率の可変設定により出射光Ｌｏｕｔの出射光をＸ方向
に角度φだけズラスことにより外乱が補正されて、被写
体Ａの撮像の手振れ補正等の外乱が補正される。In the camera shake correction apparatus, for example, when the angular velocity sensor 8 detects that the incident light Lin from the subject A has an angular displacement of the angle φ in the X direction due to a disturbance such as camera shake, the third , The disturbance is corrected by displacing the emitted light of the emitted light Lout by the angle φ in the X direction by the variable setting of the refractive indices of the fourth liquid crystals LC3 and LC4, and the disturbance such as the shake correction of the image pickup of the subject A is corrected. It
【００７６】従って、上記光軸角可変装置３０により、
第一、第二、第三の透明板１、２、３及び第一、第二の
透過板４、５の大口径化により大口径化が容易で高解像
度化が容易である。また、ガラスで形成された筐体に液
晶を充填封入して構成され、構成が簡易で長期耐久性に
優れ小型軽量で、光軸角の可変範囲が広いく、広い範囲
で手振れ補正を行う手振れ補正装置が実現される。Therefore, by the optical axis angle varying device 30,
By increasing the diameters of the first, second, and third transparent plates 1, 2, and 3 and the first and second transmitting plates 4 and 5, the diameter can be easily increased and the resolution can be easily increased. In addition, it is configured by filling and enclosing liquid crystal in a case made of glass, has a simple structure, is excellent in long-term durability, is small and lightweight, has a wide variable range of the optical axis angle, and has a wide range of image stabilization. A correction device is realized.
【００７７】なお、上記実施例の光軸角可変装置におい
ては、透明板及び透過板を透明ガラス板として説明した
が、本発明に係る透明板及び透過板はこのような材料に
限定されるものでは無く、透明なアクリル板等のプラス
チック板や透明なセラミックス板等の他の透明な板、或
いは赤外や紫外等の波長を通過させるようなコーテング
処理の施された基板や有色基板等のような光軸角可変装
置の仕様に応じた周波数帯の光を透過する材料により形
成された場合に適用可能である。In the optical axis angle varying device of the above embodiment, the transparent plate and the transparent plate are described as transparent glass plates, but the transparent plate and the transparent plate according to the present invention are limited to such materials. Instead, such as a plastic plate such as a transparent acrylic plate, another transparent plate such as a transparent ceramics plate, or a substrate or a colored substrate that has been subjected to a coating treatment to pass wavelengths such as infrared and ultraviolet. It is applicable when it is formed of a material that transmits light in a frequency band according to the specifications of the optical axis angle varying device.
【００７８】また、上記実施例の光軸角可変装置におい
ては、透明板及び透過板を平面平行形状板として説明し
たが、本発明に係る透明板及び透過板はこのような形状
に限定されるものでは無く、クサビ型形状等の他の形状
の場合にも適用可能である。Further, in the optical axis angle varying device of the above embodiment, the transparent plate and the transmissive plate have been described as plane-parallel plates, but the transparent plate and the transmissive plate according to the present invention are limited to such shapes. However, the present invention can be applied to other shapes such as a wedge shape as well.
【００７９】また、上記実施例の光軸角可変装置におい
ては、充填封入及び封止される液晶をシアンノビフェニ
ル混合系のＥ７等のネマテック液晶として説明したが、
本発明はこのような液晶の材料に限定されるものでは無
く、他のネマテック液晶や混合系や電界制御屈折効果等
の他の電気光学効果を有する液晶の場合にも適用可能で
ある。Further, in the optical axis angle varying device of the above-described embodiment, the liquid crystal to be filled and sealed is described as the nematic liquid crystal such as E7 of cyanobiphenyl mixed system.
The present invention is not limited to such a liquid crystal material, and is applicable to other nematic liquid crystals and liquid crystals having other electro-optical effects such as a mixed system and an electric field control refraction effect.
【００８０】また、上記実施例の光軸角可変装置におい
ては、ハンデイタイプのビデオカメラ装置に設けられた
手振れ補正装置に用いられた場合につて説明したが、本
発明に係る光軸角可変装置はこのような用途に限定され
るものでは無く、フイルム付きカメラや映画用の撮影機
や望遠鏡や双眼鏡や眼鏡等の被写体からの撮像光が入射
される光学系を有する他の光学装置に用いた場合にも適
用可能である。The optical axis angle varying device of the above-described embodiment has been described as being used in the image stabilizing device provided in the handy type video camera device. However, the optical axis angle varying device according to the present invention is described. Is not limited to such an application, and is used for other optical devices having an optical system into which imaging light from a subject such as a camera with a film, a camera for movies, a telescope, binoculars, and eyeglasses is incident. It is also applicable in the case.
【００８１】また、上記実施例の光軸角可変装置におい
ては、手振れ補正装置の被写体からの撮像光が入射され
るように設けられた場合につて説明したが、本発明に係
る光軸角可変装置は例えば、光学系の内部や光学系の後
端や出射光を光学的にピックアップする場合にも適用可
能である。Further, the optical axis angle varying device of the above-described embodiment has been described in the case where it is provided so that the image pickup light from the subject of the image stabilizing device is incident, but the optical axis angle varying device according to the present invention is described. The device can be applied, for example, to the inside of the optical system, the rear end of the optical system, or the case where the emitted light is optically picked up.
【００８２】[0082]
【発明の効果】以上詳細に説明したように、本発明の光
軸角可変装置は、互いに傾斜対向される第一の透明板及
び第一の透過板が設けられ、該第一の透明板と第一の透
過板との間に屈折率が可変設定自在に液晶が充填封入さ
れることにより、出射光の光軸角を可変可能である。As described in detail above, the optical axis angle varying device of the present invention is provided with the first transparent plate and the first transparent plate which are inclined and opposed to each other, and By filling and enclosing the liquid crystal with the first transmission plate so that the refractive index can be set variably, the optical axis angle of the emitted light can be changed.
【００８３】このため、第一の透明板及び第一の透過板
の大口径化により光軸角可変装置の大口径化が容易で高
解像度化が容易となる。また、構成が簡易で長期耐久性
に優れ小型軽量で、光軸角の可変範囲が広く、広い補正
範囲で手振れ補正を行う手振れ補正装置を実現する光軸
角可変装置を提供可能である。Therefore, by increasing the diameters of the first transparent plate and the first transmitting plate, it is easy to increase the diameter of the optical axis angle varying device, and it is easy to increase the resolution. Further, it is possible to provide an optical axis angle varying device that realizes a camera shake correcting device that has a simple configuration, is excellent in long-term durability, is small and lightweight, has a wide optical axis angle variable range, and performs camera shake correction in a wide correction range.
【００８４】また、互いに平行に対向して順次入射光が
入射される第一、第二の透明板と、該第一、第二の透明
板の間で、傾斜対向される第一の透過板とが設けられ
て、上記第一、第二の透明板と第一の透過板との間に屈
折率が可変設定自在に液晶が充填封入されることによ
り、一方向軸における正負両方向の広い範囲で出射光の
光軸角を可変可能である。Further, the first and second transparent plates on which the incident lights are sequentially incident in parallel and opposed to each other, and the first transmission plate which is inclined and opposed between the first and second transparent plates are provided. Since the liquid crystal is filled and sealed between the first and second transparent plates and the first transparent plate so that the refractive index can be variably set, the liquid crystal can be output in a wide range in both positive and negative directions on the unidirectional axis. The optical axis angle of the emitted light can be changed.
【００８５】このため、第一、第二の透明板、及び第一
の透過板の大口径化により光軸角可変装置の大口径化が
容易で高解像度化が容易となる。また、構成が簡易で長
期耐久性に優れ小型軽量で、光軸角の可変範囲が広く、
広い補正範囲で手振れ補正を行う手振れ補正装置を実現
する光軸角可変装置を提供可能である。Therefore, by increasing the diameters of the first and second transparent plates and the first transmitting plate, it is easy to increase the diameter of the optical axis angle varying device and increase the resolution. In addition, the structure is simple, it has excellent long-term durability, it is small and light, and the variable range of the optical axis angle is wide.
It is possible to provide an optical axis angle varying device that realizes a camera shake correction device that performs camera shake correction in a wide correction range.
【００８６】また、互いに平行に対向して順次入射光が
入射される第一、第二、第三の透明板と、該第一、第二
の透明板の間、及び該第二、第三の透明板の間で、該入
射光の入射軸に対する傾斜方向が互いに直交するように
傾斜対向される第一、第二の透過板とが設けられて、上
記各透明板と透過板との間に屈折率が可変設定自在に液
晶が充填封入されることにより、直交する二方向軸の正
負両方向の広い範囲で出射光の光軸角を可変可能であ
る。Further, the first, second, and third transparent plates, which face each other in parallel and in which incident light is sequentially incident, between the first and second transparent plates, and the second and third transparent plates. Between the plates, there are provided first and second transmission plates that are inclined and opposed so that the inclination directions of the incident light with respect to the incident axis are orthogonal to each other, and a refractive index is provided between the transparent plates and the transmission plates. By variably setting and filling the liquid crystal, it is possible to change the optical axis angle of the emitted light in a wide range in both positive and negative directions of the bidirectional axes that intersect at right angles.
【００８７】このため、第一、第二、第三の透明板、及
び第一、第二の透過板の大口径化により光軸角可変装置
の大口径化が容易で高解像度化が容易となる。また、構
成が簡易で長期耐久性に優れ小型軽量で、光軸角の可変
範囲が広く、広い補正範囲で手振れ補正を行う手振れ補
正装置を実現する光軸角可変装置を提供可能である。Therefore, by increasing the diameters of the first, second, and third transparent plates and the first and second transmitting plates, it is easy to increase the diameter of the optical axis angle varying device and easily increase the resolution. Become. Further, it is possible to provide an optical axis angle varying device that realizes a camera shake correcting device that has a simple configuration, is excellent in long-term durability, is small and lightweight, has a wide optical axis angle variable range, and performs camera shake correction in a wide correction range.
【図１】本発明の第１の実施例に係る光軸角可変装置の
概略構成図である。FIG. 1 is a schematic configuration diagram of an optical axis angle varying device according to a first embodiment of the present invention.
【図２】本発明の第２の実施例に係る光軸角可変装置の
概略構成図である。FIG. 2 is a schematic configuration diagram of an optical axis angle varying device according to a second embodiment of the present invention.
【図３】本発明の第３の実施例に係る光軸角可変装置の
概略構成図である。FIG. 3 is a schematic configuration diagram of an optical axis angle varying device according to a third embodiment of the present invention.
【図４】上記光軸角可変装置の光学的特性を説明するた
めの概略構成図である。FIG. 4 is a schematic configuration diagram for explaining an optical characteristic of the optical axis angle varying device.
【図５】本発明の第４の実施例に係る光軸角可変装置の
分解図である。FIG. 5 is an exploded view of an optical axis angle varying device according to a fourth embodiment of the present invention.
【図６】本発明の第５の実施例に係る光軸角可変装置の
概略構成図である。FIG. 6 is a schematic configuration diagram of an optical axis angle varying device according to a fifth embodiment of the present invention.
【図７】上記光軸角可変装置が設けられた手振れ補正装
置の要部の概略構成図である。FIG. 7 is a schematic configuration diagram of a main part of a camera shake correction device provided with the optical axis angle varying device.
【符号の説明】 １ 第一の透明板 ２ 第二の透明板 ３ 第三の透明板 ４ 第一の透過板 ５ 第二の透過板 １０、１５、２０、２５、３０ 光軸角可変装置 ＬＣ１、ＬＣ２、ＬＣ３、ＬＣ４ 液晶[Description of Reference Signs] 1 first transparent plate 2 second transparent plate 3 third transparent plate 4 first transmission plate 5 second transmission plate 10, 15, 20, 25, 30 Optical axis angle varying device LC1 , LC2, LC3, LC4 liquid crystal
Claims (3)
設けられて配設される第一の透明板と、 上記第一の透明板の透過面に傾斜対向して透過面が設け
られる第一の透過板と、 上記第一の透明板の透過面と第一の透過板の透過面との
間に充填封入されて、上記第一の透明板と第一の透過板
とに設けられた電極間の電位差に応じて、屈折率を可変
する液晶とを備えてなる光軸角可変装置。1. A first transparent plate provided with a transparent electrode on a transmissive surface for transmitting incident light, and a transmissive surface obliquely opposed to the transmissive surface of the first transparent plate. One transparent plate and the transparent surface of the first transparent plate and the transparent surface of the first transparent plate are filled and sealed, and are provided on the first transparent plate and the first transparent plate. An optical axis angle varying device comprising a liquid crystal whose refractive index is variable according to a potential difference between electrodes.
に透明電極が設けられ、互いの該透過面を平行に対向し
て配設される第一、第二の透明板と、 上記第一の透明板から第二の透明板に上記入射光を導く
光路において、透明電極が設けられた透過面を該第一、
第二の透明板の透過面に傾斜対向して配設される第一の
透過板と、 上記第一の透明板の透過面と第一の透過板の透過面との
間、及び第一の透過板の透過面と第二の透明板の透過面
との間の各々に充填封入されて、上記第一の透明板と第
一の透過板、又は第一の透過板と第二の透明板に設けら
れた各々の電極間の電位差に応じて、屈折率を可変する
液晶とを備えてなる光軸角可変装置。2. A first and a second transparent plate, wherein transparent electrodes are provided on transmission surfaces for sequentially transmitting incident light respectively, and the transmission surfaces are arranged in parallel with each other, and the first and second transparent plates. In the optical path that guides the incident light from the transparent plate to the second transparent plate, the transparent surface provided with a transparent electrode, the first,
A first transparent plate disposed so as to be obliquely opposed to the transparent surface of the second transparent plate, between the transparent surface of the first transparent plate and the transparent surface of the first transparent plate, and the first transparent plate. The first transparent plate and the first transparent plate, or the first transparent plate and the second transparent plate, which are filled and sealed between the transparent surface of the transparent plate and the transparent surface of the second transparent plate. An optical axis angle varying device comprising a liquid crystal whose refractive index is varied according to a potential difference between respective electrodes provided in.
に透明電極が設けられ、互いの該透過面を平行に対向し
て配設される第一、第二、第三の透明板と、 上記第一の透明板から第二の透明板に上記入射光を導く
光路において、透明電極が設けられた透過面を該第一、
第二の透明板の透過面に傾斜対向して配設される第一の
透過板と、 上記第二の透明板から第三の透明板に上記入射光を導く
光路において、透明電極が設けられた透過面を、上記入
射光の入射軸に対して上記第一の透過板の傾斜方向と互
いに直交するように該第二、第三の透明板の透過面に傾
斜対向して配設される第二の透過板と、 上記第一の透明板の透過面と第一の透過板の透過面との
間、第一の透過板の透過面と第二の透明板の透過面との
間、該第二の透明板の透過面と第二の透過板の透過面と
の間、及び該第二の透過板の透過面と第三の透明板の透
過面との間に各々充填封入されて、上記第一の透明板と
第一の透過板、第一の透過板と上記第二の透明板、該第
二の透明板と第二の透過板、又は第二の透過板と第三の
透明板に設けられた各々の電極間の電位差に応じて、屈
折率を可変する液晶とを備えてなる光軸角可変装置。3. A first, a second, and a third transparent plate, each of which is provided with a transparent electrode on a transmissive surface that sequentially transmits incident light, and is arranged so that the transmissive surfaces thereof face each other in parallel. In the optical path for guiding the incident light from the first transparent plate to the second transparent plate, the transparent surface provided with a transparent electrode, the first,
A transparent electrode is provided in a first transparent plate that is disposed so as to be inclined and opposed to the transparent surface of the second transparent plate, and in an optical path that guides the incident light from the second transparent plate to the third transparent plate. The transparent surface is obliquely opposed to the transparent surfaces of the second and third transparent plates so as to be orthogonal to the tilt direction of the first transparent plate with respect to the incident axis of the incident light. Second transparent plate, between the transparent surface of the first transparent plate and the transparent surface of the first transparent plate, between the transparent surface of the first transparent plate and the transparent surface of the second transparent plate, Filled and sealed between the transparent surface of the second transparent plate and the transparent surface of the second transparent plate, and between the transparent surface of the second transparent plate and the transparent surface of the third transparent plate. , The first transparent plate and the first transparent plate, the first transparent plate and the second transparent plate, the second transparent plate and the second transparent plate, or the second transparent plate and the third It was provided on the transparent plate According to the potential difference between the people of the electrodes, the optical axis angle variation device comprising a liquid crystal for varying the refractive index.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6297378A JPH08152504A (en) | 1994-11-30 | 1994-11-30 | Optical axis angle varying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6297378A JPH08152504A (en) | 1994-11-30 | 1994-11-30 | Optical axis angle varying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08152504A true JPH08152504A (en) | 1996-06-11 |
Family
ID=17845719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6297378A Pending JPH08152504A (en) | 1994-11-30 | 1994-11-30 | Optical axis angle varying device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08152504A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7505060B2 (en) | 2002-07-12 | 2009-03-17 | Ricoh Company, Ltd. | Light scanning apparatus having a liquid crystal deflector and image forming apparatus using the same |
| US8515272B2 (en) | 2009-07-23 | 2013-08-20 | Canon Kabushiki Kaisha | Optical apparatus having optical anti-shake function |
| CN110290327A (en) * | 2019-07-01 | 2019-09-27 | 比亦特网络科技（天津）有限公司 | A kind of elevator monitoring camera shooting jitter removing method and system |
-
1994
- 1994-11-30 JP JP6297378A patent/JPH08152504A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7505060B2 (en) | 2002-07-12 | 2009-03-17 | Ricoh Company, Ltd. | Light scanning apparatus having a liquid crystal deflector and image forming apparatus using the same |
| US8515272B2 (en) | 2009-07-23 | 2013-08-20 | Canon Kabushiki Kaisha | Optical apparatus having optical anti-shake function |
| CN110290327A (en) * | 2019-07-01 | 2019-09-27 | 比亦特网络科技（天津）有限公司 | A kind of elevator monitoring camera shooting jitter removing method and system |
| CN110290327B (en) * | 2019-07-01 | 2020-12-29 | 戈尔电梯（天津）有限公司 | Method and system for removing jitter of elevator monitoring camera |
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