JPS61198207A - Optical device - Google Patents

Optical device

Info

Publication number
JPS61198207A
JPS61198207A JP3920885A JP3920885A JPS61198207A JP S61198207 A JPS61198207 A JP S61198207A JP 3920885 A JP3920885 A JP 3920885A JP 3920885 A JP3920885 A JP 3920885A JP S61198207 A JPS61198207 A JP S61198207A
Authority
JP
Japan
Prior art keywords
mirror
elastic
center shaft
elastic mirror
deforming
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
Application number
JP3920885A
Other languages
Japanese (ja)
Inventor
Minoru Toda
実 戸田
Tetsuo Koike
哲夫 小池
Toshio Hirooka
廣岡 俊生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP3920885A priority Critical patent/JPS61198207A/en
Publication of JPS61198207A publication Critical patent/JPS61198207A/en
Pending legal-status Critical Current

Links

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  • Optical Elements Other Than Lenses (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)

Abstract

PURPOSE:To vary a focus and an optical axis freely by composing a reflection mirror of an elastic body and deforming its respective parts. CONSTITUTION:A frame 1 is shaped in a U shape; and a through hole in which an elastic mirror 2 is fitted is formed in one of facing surfaces and a cross- shaped slit 4 where a center shaft 3 for deforming the elastic mirror 2 is fixed is formed in the other surface. When this center shaft 3 is moved in the cross slit 4, a force perpendicular to the center shaft is applied to the elastic mirror 2, which deforms at right angles to the center shaft 2. Further, the center shaft 3 is thread-cut and a nut is fixed to the elastic mirror 2; and the center shaft is rotated to apply a force to the elastic mirror 2 in parallel to the center shaft 3, so that the elastic mirror 2 deforms in the direction of the center shaft.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は光を利用した、検知装置や警報装置、特に赤外
線や可視光線の投光、受光、集光、散光。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is directed to detection devices and alarm devices that utilize light, particularly for emitting, receiving, condensing, and scattering infrared and visible light.

反射のための装置に関するものである。It concerns a device for reflection.

従来の技術 従来、光を利用した検知装置や警報装置の光学装置、特
に投光装置や受光装置に使われる凹面鏡には、金属やプ
ラスチックのものが使われ、その焦点や投光、受光の方
向(光軸)を変化させる手段としては、鏡そのものを動
かしてやる方法が一般的であった。また単一の凹面鏡で
焦点を変えるには、凹面鏡と、光学的なレンズを組合せ
、両者の位置関係を変化させて焦点を変えてやるなどの
焦点を変化させてやるためには、その構成部品点数が多
くなシ、信頼性も低下する。
Conventional technology Conventionally, optical devices for detection devices and alarm devices that use light, especially concave mirrors used in light emitters and light receivers, are made of metal or plastic, and their focus and direction of light emission and light reception are difficult to determine. A common method for changing the optical axis was to move the mirror itself. In addition, to change the focal point with a single concave mirror, you need to combine the concave mirror and an optical lens, and change the positional relationship between the two to change the focal point. The higher the number of points, the lower the reliability.

本発明は上述のような問題点を解決し、単一の反射鏡の
みで、その焦点や光軸を変化させることを可能にする装
置を提供しようとするものである。
The present invention aims to solve the above-mentioned problems and provide a device that makes it possible to change the focal point and optical axis using only a single reflecting mirror.

問題点を解決するための手段 本発明にかかる装置は、光軸や焦点を変化させるために
、弾性体に鏡面処理を施した反射鏡を使用し、この反射
鏡そのものを変形させることにより、反射鏡の光軸や焦
点を変化させるものである。
Means for Solving the Problems The device according to the present invention uses a reflecting mirror made of an elastic material with a mirror finish, and deforms the reflecting mirror itself in order to change the optical axis and focal point. It changes the optical axis and focus of the mirror.

作    用 反射鏡そのものが弾性体で構成されているため、その各
部を変形させることにより、自由に焦点や光軸を変化さ
せることができる。また、光を利用した検知装置や、警
報装置に使用する際、単一の反射鏡で、焦点や光軸を変
化させられることを利用して検知エリアの特定の場所に
不感部分を作ることも可能であシ、設置場所の条件に合
わせた検知エリアの設定が可能である。また、弾性体を
使用しているため、衝撃や振動に対しても強いという利
点もある。
Since the working reflector itself is made of an elastic body, the focal point and optical axis can be changed freely by deforming its parts. Also, when used in detection devices or alarm devices that use light, the ability to change the focus and optical axis with a single reflecting mirror can be used to create a blind area in a specific location in the detection area. Yes, it is possible to set the detection area according to the conditions of the installation location. Additionally, since it uses an elastic body, it has the advantage of being resistant to shock and vibration.

実施例 以下、本発明の光学装置についてその実施例にもとづい
て詳細に説明する。第1図〜第6図は本装置の一実施例
について説明するための図である。
EXAMPLES Hereinafter, the optical device of the present invention will be explained in detail based on examples thereof. FIGS. 1 to 6 are diagrams for explaining one embodiment of this apparatus.

第1図は、この実施例の斜視図、第2図はその断面図で
ある。
FIG. 1 is a perspective view of this embodiment, and FIG. 2 is a sectional view thereof.

第1図において、1はフレームで、コの字形ヲしており
、対面する面の一方に弾性ミラー2をはめ込む透孔が設
けられておシ、もう一方の面には弾性ミラー2を変形さ
せるための中心軸3を固定する十字形スリット4が設け
られている。この中心軸3が十字スリット4の中を移動
させると、弾性ミラー2に中心軸と直角方向の力が加え
られる。
In Fig. 1, reference numeral 1 denotes a frame, which has a U-shape and has a through hole in which the elastic mirror 2 is inserted on one of its facing surfaces, and a through hole in which the elastic mirror 2 is inserted into the other surface. A cross-shaped slit 4 is provided for fixing a central shaft 3 for the purpose. When the central axis 3 moves within the cross slit 4, a force is applied to the elastic mirror 2 in a direction perpendicular to the central axis.

これにより、弾性ミラー2を中心軸2と直角方向に変形
させることができる。また中心軸3には、ねじが切って
あり、ナンドが弾性ミラー2に固定されている。よって
中心軸を回転させることによもできる。ここで6は鏡面
処理部を示している。
Thereby, the elastic mirror 2 can be deformed in a direction perpendicular to the central axis 2. Further, the central shaft 3 is threaded and a NAND is fixed to the elastic mirror 2. Therefore, it can also be done by rotating the central axis. Here, 6 indicates a mirror surface processing section.

6は弾性ミラー2のひずみをにがすためのスリットであ
り、7は鏡面処理部のひずみをにがすために弾性体表面
に設けた鏡面処理をしていない部分である。
6 is a slit for eliminating distortion in the elastic mirror 2, and 7 is a portion on the surface of the elastic body that is not mirror-treated to eliminate distortion in the mirror-treated portion.

第2図は第1図A−A’の断面図であシ、第1図と対応
する部分には第1図と同じ符号がつけである。ここで、
8は弾性ミラー2の中に固定されたナツトである。図中
、二点鎖線で示しているのは、中心軸3を回転させ弾性
ミラーを中心軸3のねじ頭方向に引いたときの変形の具
合を示している。
FIG. 2 is a sectional view taken along line AA' in FIG. 1, and parts corresponding to those in FIG. 1 are given the same reference numerals as in FIG. 1. here,
8 is a nut fixed in the elastic mirror 2. In the figure, the two-dot chain line indicates the degree of deformation when the central shaft 3 is rotated and the elastic mirror is pulled in the direction of the screw head of the central shaft 3.

第3図は弾性ミラーをフレーム1にはめ込む前の状態を
示している。第2図同様、第1図に対応する部分には第
1図と同じ符号がつけである。ここでスリット6や鏡面
処理していない部分7はひずみをにがすためのものであ
るので、弾性ミラー2を最初から凹面状に成形しておき
、その内部に鏡面処理をして使用してもよい。
FIG. 3 shows the state before the elastic mirror is fitted into the frame 1. Similar to FIG. 2, parts corresponding to those in FIG. 1 are given the same reference numerals as in FIG. Here, the slits 6 and the non-mirrored portions 7 are for eliminating distortion, so the elastic mirror 2 is formed into a concave shape from the beginning and the interior is mirror-treated before use. Good too.

第4因〜第7図は弾性ミラー2を変形させた場合にその
集光(投光)パターンの変化を説明するだめの図であり
、第1図と対応する部分には同じ符号を付している。
Figures 4 to 7 are diagrams for explaining changes in the light focusing (light emitting) pattern when the elastic mirror 2 is deformed, and parts corresponding to those in Figure 1 are given the same reference numerals. ing.

第4図において、9は光路、11はその集光パターンを
示している。金弟4図の状態でその焦光パターン11が
、第6図の13に示すような形をしていたとする。ここ
で弾性ミラー2を変形し、第5図に示すような形状にし
たとすると、その集光パターン10は第6図の12のよ
うな形状になる。これは言換えると弾性ミラー2の焦点
が変化したことを示している。また、第4図B−B’の
断面を真円でないように変形させて、その集光パターン
11を第7図の14に示すように変化させることもでき
る。このような変形を組み合わすことにより、自由な集
光パターンを作り出すことができる。
In FIG. 4, reference numeral 9 indicates an optical path, and reference numeral 11 indicates its condensing pattern. Suppose that the focal pattern 11 in the state shown in Figure 4 has a shape as shown in 13 in Figure 6. If the elastic mirror 2 is deformed into a shape as shown in FIG. 5, the condensing pattern 10 will be shaped as 12 in FIG. 6. In other words, this indicates that the focus of the elastic mirror 2 has changed. Furthermore, the cross section taken along line BB' in FIG. 4 can be deformed so that it is not a perfect circle, and the condensing pattern 11 can be changed as shown at 14 in FIG. 7. By combining such deformations, it is possible to create a free light condensing pattern.

発明の効果 以上に示したように、弾性体表面に鏡面処理を施してい
るので、単一の反射鏡でその形状をきわ、と、単一の反
射鏡で他の光学装置に頼らずに焦点を連続的に移動させ
ることができる。
Effects of the Invention As shown above, since the surface of the elastic body is mirror-finished, the shape can be sharpened with a single reflecting mirror, and the focus can be achieved with a single reflecting mirror without relying on other optical devices. can be moved continuously.

【図面の簡単な説明】[Brief explanation of drawings]

第1図〜第7図は本発明にかかる光学装置一実施例を示
し、第1図は同実施例の斜視図、第2図はその断面図、
第3図は弾性ミラーの展開図、第ある。 1・・・・・・フレーム、2・・・・・・弾性ミラー、
3・川・・中心軸、4・・・・・・十字スリット、6・
・・・・・鏡面処理部分。 代理人の氏名 弁理士 中 尾 敏 男 ほか1名5°
9   76 1   、      ダ 第4図
1 to 7 show an embodiment of the optical device according to the present invention, FIG. 1 is a perspective view of the embodiment, FIG. 2 is a sectional view thereof,
Figure 3 is a developed view of the elastic mirror. 1... Frame, 2... Elastic mirror,
3. River... central axis, 4... cross slit, 6.
・・・・・・Mirror finish part. Name of agent: Patent attorney Toshio Nakao and 1 other person 5°
9 76 1, Da Figure 4

Claims (2)

【特許請求の範囲】[Claims] (1)弾性体の表面に鏡面処理を施し、光学的反射の機
能を持たせた光学装置。
(1) An optical device in which the surface of an elastic body is mirror-treated to provide an optical reflection function.
(2)弾性体の表面に鏡面処理を施し、光学的反射の機
能を持たせ、これを変形することにより焦点の位置およ
び集点パターンの変化を可能とした特許請求の範囲第1
項に記載の光学装置。
(2) The surface of the elastic body is mirror-finished to give it an optical reflection function, and by deforming it, the focal point position and convergence pattern can be changed.
Optical device as described in section.
JP3920885A 1985-02-28 1985-02-28 Optical device Pending JPS61198207A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3920885A JPS61198207A (en) 1985-02-28 1985-02-28 Optical device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3920885A JPS61198207A (en) 1985-02-28 1985-02-28 Optical device

Publications (1)

Publication Number Publication Date
JPS61198207A true JPS61198207A (en) 1986-09-02

Family

ID=12546715

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3920885A Pending JPS61198207A (en) 1985-02-28 1985-02-28 Optical device

Country Status (1)

Country Link
JP (1) JPS61198207A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5673153A (en) * 1993-09-02 1997-09-30 Image Optical Corporation Viewing assembly for producing an optically corrected reflected image
EP2148130A2 (en) * 2008-07-17 2010-01-27 Osram Gesellschaft mit beschränkter Haftung Optical element

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5673153A (en) * 1993-09-02 1997-09-30 Image Optical Corporation Viewing assembly for producing an optically corrected reflected image
US5677800A (en) * 1993-09-02 1997-10-14 Image Optical Corporation Viewing assembly for producing an optically corrected reflected image
EP2148130A2 (en) * 2008-07-17 2010-01-27 Osram Gesellschaft mit beschränkter Haftung Optical element
EP2148130A3 (en) * 2008-07-17 2013-05-15 OSRAM GmbH Optical element

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