JPS60131418A - Position detection sensor - Google Patents

Abstract

PURPOSE:To improve application by providing wiring on a fixed base which is attachable to the film loading part of a camera so that an electric signal is transmitted, and providing a photodetection part which is divided into plural unit photodetection parts and uniting them. CONSTITUTION:When an objective light source 21 moves up and down, and right and left about a lens group 22, the spot of light striking the photodetection part 7 through the lens group 22 also moves up and down, and right and left. This photodetection part 7 is divided into plural unit photodetection parts, which operate according to the quantity of the light. Outputs of the respective photodetection parts are led out through wiring, contacts, and contacts 13 of a projection unit 12 to measure up-down and right-left oscillations and displacement of the subject.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は３５Ｎｆｆカメラ等のカメラに装着可能な位置
検出用センサに関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a position detection sensor that can be attached to a camera such as a 35Nff camera.

従来例の構成とその問題点 従来の非接触変位測定器は第１図にその具体構成を示す
様に、明暗のあるターゲット１を被測定面につくり、こ
れを専用レンズ２を介して、フォトカソード３に投影し
、このフォトカソードは光の量を電子の量に変換し、明
は多量の、暗は少量の電子量に変換され、明暗の境界線
は電子の境界線となりプレート４に引きよせられ、プレ
ート内のアパーチャー５より電子が通過し、電子増倍管
６へ入る構造になっており、明暗の境界線のなＩ動を検
出する測定装置である。Conventional configuration and problems The conventional non-contact displacement measuring device, as shown in FIG. The light is projected onto the cathode 3, and this photocathode converts the amount of light into the amount of electrons. Brightness is converted into a large amount of electrons, darkness is converted into a small amount of electrons, and the boundary between light and dark becomes the boundary between electrons and is drawn to the plate 4. The structure is such that electrons pass through an aperture 5 in the plate and enter an electron multiplier 6, and are a measuring device that detects I-motion at the boundary between light and dark.

しかしながら上記の様な構成では、明暗の境界線がかな
らず必要であり、明暗をつくるために、光を当てると被
測定面の状態あるいは、被測定物とレンズ間に透過率の
悪い物体がある場合、光の散乱、絶対光量の減少があれ
ば、測定精度の低下。However, in the above configuration, a boundary line between light and dark is always required, and in order to create brightness and darkness, applying light can change the state of the surface to be measured, or if there is an object with poor transmittance between the object to be measured and the lens. , if there is light scattering and a decrease in the absolute light intensity, the measurement accuracy will decrease.

測定不可能となる。又、専用レンズが必要なため変更、
増設に汎用性がなく、電子増倍管を利用するとカメラ自
体をコンパクトに出来ない等の問題点があった。It becomes impossible to measure. Also, since a special lens is required, changes are made.
There were problems such as lack of versatility in expansion and the inability to make the camera itself compact if electron multiplier tubes were used.

本発明は上記従来の欠点を解消するものであり、市販３
６ＩＩ！ＩＫカメラに取り付けることのできる汎用性の
高い位置検出セ／すを提供することを目的とする。The present invention solves the above-mentioned conventional drawbacks, and the present invention
6II! An object of the present invention is to provide a highly versatile position detection device that can be attached to an IK camera.

発明の構成 本発明は３５問サイズカメラのフィルム装着部に取り付
は可能な剛性の高い材料でつくられた固定ベースと、前
記固定ベース上に電気信号を伝送出来る様に配線され、
なおかつカメラのフィルム焦点位置に合う様に複数個の
単位光検出部に分割された光検出部を設は一体化された
構成で、被写体内の被測定物の位置情報を外部測定器へ
送ることが出来、３６朋カメラがベースであるため、レ
ンズ系が安価に豊富に手に入り応用性が高く有効である
。Structure of the Invention The present invention includes a fixed base made of a highly rigid material that can be attached to the film mounting portion of a 35-question size camera, and wires arranged on the fixed base so that electrical signals can be transmitted.
Furthermore, the light detection section is divided into a plurality of unit light detection sections so as to match the camera's film focus position, and the light detection section is integrated into one unit, so that the position information of the object to be measured within the subject can be sent to an external measuring device. Since it is based on the 36-inch camera, lens systems are available at low cost and in abundance, making it highly applicable and effective.

実施例の説明 以下に本発明の一実施例を第２〜５図にもとづいて説明
する。DESCRIPTION OF THE EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 2 to 5.

図において、７は複数個からなる光検出部、８は光検出
部７が取り付き、かつ内部に電気信号の配線を持一つベ
ース、９はカメラのパトローネの穴に対応する突起、１
０は外部へ電気信号を伝送する凹ユニット、１１はシャ
ター窓に対応する枠、１２は凹ユニット１ｏに対応する
電気信号を伝送する凸ユニット、１３は凸ユニット１２
に設けられた複数個の接点、１４は凹ユニット１Ｏと凸
ユニット１２との位置合せ用ビン、１５はベース８内の
配線、１６はペース８企補強する補強ベース、１７は凹
ユニット内に設けられた複数個の接点、１８は３５馴カ
メラのボディ、１９は補強ベース１６面を押えるフィル
ム押え板、２０は３５Ｍカメラの裏ぶた、２１は対象物
上にある対象光源、２２は対象光源２１の大きさに合っ
たレンズ群である。In the figure, reference numeral 7 denotes a photodetection unit consisting of a plurality of parts, 8 a base to which the photodetection unit 7 is attached and has electrical signal wiring inside, 9 a protrusion corresponding to the hole in the cartridge of the camera, 1
0 is a concave unit that transmits an electric signal to the outside, 11 is a frame corresponding to the shutter window, 12 is a convex unit that transmits an electric signal corresponding to the concave unit 1o, and 13 is a convex unit 12
14 is a pin for positioning the concave unit 1O and the convex unit 12, 15 is the wiring inside the base 8, 16 is a reinforcing base for reinforcing the pace 8, and 17 is provided inside the concave unit. 18 is the body of the 35M camera, 19 is the film holding plate that presses the reinforcement base 16, 20 is the back cover of the 35M camera, 21 is the target light source on the object, and 22 is the target light source 21. It is a lens group that matches the size.

以上の様に構成されたＳｒ５ｍｍ型位置検出センサにつ
いて以下にその動作を説明する。The operation of the Sr5mm type position detection sensor configured as above will be explained below.

捷ず第５図に示す対象光源２１がレンズ群２２に対し上
下、左右に移動するとレンズ群２２を通って光検出部７
に当たる光の点も上下、左右に移動する。この光検出部
７は複数個の単位光検出部にわかれており光の量により
各単位光検出部が動作し、それぞれの単位光検出部から
配線１５、接点１７を伝達し凸ユニット１２の接点１３
を介して出力が外部へ出力され、被写体の上下と左右の
振動、変位が測定出来る。When the target light source 21 shown in FIG.
The point of light that hits the object also moves up and down and left and right. This photodetecting section 7 is divided into a plurality of unit photodetecting sections, and each unit photodetecting section operates depending on the amount of light, and the wiring 15 and the contact 17 are transmitted from each unit photodetecting section to the contact of the convex unit 12. 13
The output is output to the outside via the , and the vertical and horizontal vibrations and displacements of the subject can be measured.

発明の効果 このように本発明は、市販されている３６ＮＭカメラを
使用するため応用性がきわめて高く光検出部上に光がと
どけば、上下と左右の２方向の動きが同時に検出が可能
となり、物体の動きの解析が容易となる。Effects of the Invention As described above, the present invention has extremely high applicability because it uses a commercially available 36NM camera, and as long as light reaches the light detection section, movement in two directions, up and down and left and right, can be detected simultaneously. It becomes easier to analyze the movement of objects.

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

第１図は従来の測定器の原理説明図、第２図は本発明の
一実施例を示す要素分解正面図、第３図は同要部の上部
断面図、第４図は３５朋カメラボデイにセットした状態
を示す正面図、第５図は同実施例の構成図である。 ７・・・・・・光検出部、９・・・・・・フィルム装置
部、１２・・・・・電気信号伝送部材、１６・・・・・
・固定ベース。Fig. 1 is an explanatory diagram of the principle of a conventional measuring instrument, Fig. 2 is an exploded front view showing an embodiment of the present invention, Fig. 3 is a sectional view of the upper part of the same, and Fig. 4 is a 35 mm camera body. FIG. 5 is a front view showing a state in which the device is set in the same embodiment. 7... Photo detection section, 9... Film device section, 12... Electric signal transmission member, 16...
・Fixed base.

Claims (1)

【特許請求の範囲】[Claims] カメラのフィルム装着部に取９付は可能な固定ペースと
、前記固定ベース上に電気信号を伝送する電気信号伝送
部材と、カメラのフィルム焦点位置に、前記電気信号伝
送部材に取り付けられ、なおかつ、複数個に分割された
光検出部とを備えてなる位置検出センサ。a fixed pace that can be attached to the film mounting portion of the camera; an electrical signal transmission member that transmits electrical signals on the fixed base; and a fixed base that is attached to the electrical signal transmission member at the film focus position of the camera; A position detection sensor comprising a light detection section divided into a plurality of parts.