JPH11304476A - Light sensor for detecting inclination - Google Patents
Light sensor for detecting inclinationInfo
- Publication number
- JPH11304476A JPH11304476A JP11633898A JP11633898A JPH11304476A JP H11304476 A JPH11304476 A JP H11304476A JP 11633898 A JP11633898 A JP 11633898A JP 11633898 A JP11633898 A JP 11633898A JP H11304476 A JPH11304476 A JP H11304476A
- Authority
- JP
- Japan
- Prior art keywords
- sphere
- light
- moving path
- optical sensor
- base
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電子カメラ等の各
種機器に搭載され、その機器の傾きを検出する傾き検出
用光センサーに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tilt detection optical sensor mounted on various devices such as an electronic camera and detecting the tilt of the device.
【０００２】[0002]
【従来の技術】従来の球体を用いた傾き検出用光センサ
ー（以下、単に「光センサー」と称す。）としては、同
出願人が提案した特願平９−１６３８８１号（平成９年
６月２０日出願）に記載のものがある。2. Description of the Related Art As a conventional optical sensor for detecting inclination using a sphere (hereinafter simply referred to as an "optical sensor"), Japanese Patent Application No. 9-163881 proposed by the same applicant (June 1997) was used. (Filed on the 20th).
【０００３】図８はこの光センサーを示す構成図であ
り、（ａ）は平面図であり、（ｂ）は（ａ）のＣ−Ｃ′
断面図であり、（ｃ）は（ａ）のＤ−Ｄ′断面図であ
る。FIGS. 8A and 8B are diagrams showing the construction of this optical sensor. FIG. 8A is a plan view, and FIG. 8B is a plan view of FIG.
It is sectional drawing, (c) is DD 'sectional drawing of (a).
【０００４】以下、図８を用いて従来の光センサーの構
成を説明する。従来の光センサーは、基体１４と、蓋体
１５と、球体１６とを有している。前記基体１４は遮光
性樹脂からなる断面視コの字形状からなり、このコの字
部分の底面に、中央部に水平面１３ａを備え両端部に傾
斜面１３ｂ，１３ｃを備えた球体移動路１３が設けられ
ている。この傾斜面１３ｂ，１３ｃは前記水平面１３ａ
側に向かって任意の角度の傾きを以て傾斜している。こ
のような球体移動路１３上に、例えばステンレス製の球
体１６を搭載し、この球体１６が傾きにより飛び出さな
いようコの字部分の開口部を覆い被せるように、遮光性
樹脂からなる蓋体１５が装着されている。この蓋体１５
には係止片１７が設けられており、装着時に弾性変形に
より広がり、作業上容易かつ確実に基体１４の保持部１
８に係止されるようになっている。このため、人の手な
どで外さない限り衝撃等で容易に外れることはない。ま
た、基体１４には球体移動路１３を挟んで両側に、リー
ドフレーム１９に搭載された発光チップ２０を透光性樹
脂にてモールドしてなる発光素子１１とリードフレーム
１９に搭載された受光チップ２１を透光性樹脂にてモー
ルドしてなる受光素子１２とを対向配置している。Hereinafter, the configuration of a conventional optical sensor will be described with reference to FIG. The conventional optical sensor has a base 14, a lid 15, and a sphere 16. The base 14 has a U-shape in cross section made of a light-shielding resin, and a spherical movement path 13 having a horizontal surface 13a at the center and inclined surfaces 13b and 13c at both ends is provided on the bottom surface of the U-shape. Is provided. The inclined surfaces 13b and 13c are provided on the horizontal surface 13a.
It is inclined at an arbitrary angle toward the side. A sphere 16 made of, for example, stainless steel is mounted on the sphere moving path 13, and a lid made of a light-shielding resin is provided so as to cover the opening of the U-shaped portion so that the sphere 16 does not pop out due to the inclination. 15 are mounted. This lid 15
Is provided with a locking piece 17, which spreads by elastic deformation at the time of mounting, so that the holding portion 1 of the base 14 can be easily and reliably operated.
8. For this reason, it does not easily come off due to impact or the like unless it is taken off by human hands or the like. A light emitting element 11 formed by molding a light emitting chip 20 mounted on a lead frame 19 with a translucent resin and a light receiving chip mounted on the lead frame 19 are provided on both sides of the base body 14 with the spherical moving path 13 therebetween. The light receiving element 12 formed by molding a resin 21 with a translucent resin is disposed to face the light receiving element 12.
【０００５】続いて、上述した光センサーの傾き検出の
原理を説明する。上述した光センサーは、電子カメラ等
の各種機器に搭載され、その傾斜方向を検出するもので
あるが、受光チップ２１の２つの受光面２１ａ，２１ｂ
は傾斜時に球体１６が位置する左右の傾斜面１３ｂ，１
３ｃに対応する位置にそれぞれ位置し、発光チップ２０
は２つの受光面２１ａ，２１ｂの間で対向しかつ非傾斜
時に２つの受光面２１ａ，２１ｂへの光が前記水平面１
３ａにある球体１６により遮光されない位置にある。Next, the principle of detecting the inclination of the optical sensor will be described. The above-described optical sensor is mounted on various devices such as an electronic camera and detects the inclination direction. The two light receiving surfaces 21a and 21b of the light receiving chip 21 are used.
Are the left and right inclined surfaces 13b, 1 on which the sphere 16 is located when inclined.
3c, the light emitting chips 20
Are opposed to each other between the two light receiving surfaces 21a and 21b, and when the light is not inclined, the light to the two light receiving surfaces 21a and 21b
It is at a position where light is not shielded by the sphere 16 in 3a.
【０００６】このため、光センサーおよびこれを搭載し
た機器（被検出体）の非傾斜状態では、球体１６は自重
により水平面１３ａに位置し、発光チップ２０からの光
は球体１６により妨げられることなく受光チップ２１の
２つの受光面２１ａ，２１ｂに入射する。そして、２つ
の受光面２１ａ，２１ｂからの出力信号を受けて当該光
センサーおよびこれを搭載した機器が非傾斜状態である
ことを判断する。Therefore, in a non-tilted state of the optical sensor and the device (object to be detected) on which the optical sensor is mounted, the sphere 16 is positioned on the horizontal surface 13a by its own weight, and the light from the light emitting chip 20 is not obstructed by the sphere 16 The light enters the two light receiving surfaces 21a and 21b of the light receiving chip 21. Then, in response to output signals from the two light receiving surfaces 21a and 21b, it is determined that the optical sensor and the device equipped with the optical sensor are in a non-tilted state.
【０００７】一方、光センサーおよびこれを搭載した機
器が傾斜面１３ｂの角度を越えて左側へ傾斜した傾斜状
態では、球体１６は自重により点線で示す傾斜面１３ｂ
の端部に移動し、発光チップ２０からの光は傾斜方向に
配置された受光面２１ａに入射せず、他方の受光面２１
ｂにのみ入射する。そして、受光面２１ｂからの出力信
号を受けて当該光センサーおよびこれを搭載した機器が
左に傾斜状態であることを判断する。On the other hand, in a state where the optical sensor and the device equipped with the optical sensor are inclined leftward beyond the angle of the inclined surface 13b, the sphere 16 is under its own weight and the spherical surface 16b is indicated by a dotted line.
And the light from the light emitting chip 20 does not enter the light receiving surface 21a arranged in the inclined direction, and the other light receiving surface 21a
Only incident on b. Then, in response to the output signal from the light receiving surface 21b, it is determined that the optical sensor and the device equipped with the optical sensor are inclined leftward.
【０００８】また、従来の他の光センサーとしては、図
９に示すように、球体移動路１３の球体移動方向に対し
て垂直方向の幅（球体移動路１３の短手方向の幅）を球
体１６の幅に比較して大きく設定したものがある。な
お、図９は、従来の他の光センサーの概略図であり、
（ａ）は正面断面図であり、（ｂ）は側面断面図であ
る。As another conventional optical sensor, as shown in FIG. 9, the width of the sphere moving path 13 in the direction perpendicular to the sphere moving direction (the width of the sphere moving path 13 in the lateral direction) is set to the sphere. Some of them are set to be larger than 16 widths. FIG. 9 is a schematic view of another conventional optical sensor.
(A) is a front sectional view, and (b) is a side sectional view.
【０００９】[0009]
【発明が解決しようとする課題】しかしながら、上述し
た従来の光センサーでは、球体１６の複数回の移動（度
重なる移動）によって球体１６および球体移動路１３に
静電気が帯電した場合、球体１６表面および球体移動路
１３表面が凹凸を有しない球面および平面であるために
帯電した静電気が放電しにくく、帯電したままの球体１
６と球体移動路１３との間に静電気による力が働く。こ
の静電気力は、球体１６が自重により移動するのを妨げ
る方向に力が働く。However, in the above-mentioned conventional optical sensor, when the sphere 16 and the sphere moving path 13 are charged with static electricity by a plurality of movements (repeated movement) of the sphere 16, the surface of the sphere 16 and the Since the surface of the sphere moving path 13 is a spherical surface and a flat surface having no irregularities, the charged static electricity is hardly discharged, and the charged sphere 1
A force due to static electricity acts between the ball 6 and the sphere moving path 13. The electrostatic force acts in a direction that prevents the sphere 16 from moving by its own weight.
【００１０】この結果、従来の光センサーでは、例えば
４６度の角度で傾けたときに球体１６が自重により移動
するはずが、図１０に示すように右に９０度傾けても球
体１６が移動しない場合があり、最悪の場合、傾き検出
用光センサーを１８０度に傾けても球が移動しない場合
があった。As a result, in the conventional optical sensor, the sphere 16 should move by its own weight when it is tilted at an angle of, for example, 46 degrees. However, as shown in FIG. 10, the sphere 16 does not move even if it is tilted 90 degrees to the right. In the worst case, the ball may not move even if the tilt detection optical sensor is tilted at 180 degrees.
【００１１】この場合、光センサーを搭載した機器が傾
いているにもかかわらず、光センサーの出力としては機
器が傾いていないという出力となり、誤検出となる。ま
た、この逆で、機器が傾いていないにもかかわらず、光
センサーの出力としては機器が傾いているとの出力とな
り、誤検出となることもあった。In this case, even though the device equipped with the optical sensor is tilted, the output of the optical sensor is an output indicating that the device is not tilted, resulting in erroneous detection. On the contrary, even though the device is not tilted, the output of the optical sensor is an output indicating that the device is tilted, which may result in erroneous detection.
【００１２】また、図９（ｂ）に示すように、球体１６
は、当該球体１６が収納されている空間の凹凸を有しな
い壁面および上面に対しても接触可能な環境にあり、こ
れらに接触することによっても帯電し、傾きの誤検出の
要因となっていた。Also, as shown in FIG.
Is in an environment where it can contact the wall surface and the top surface of the space in which the spherical body 16 is housed without any irregularities, and it is also charged by contact with these, causing misdetection of the inclination. .
【００１３】本発明は、上記課題に鑑み、複数回の球体
移動を行っても、正確に傾き検出を行える傾き検出用光
センサーの提供を目的とするものである。An object of the present invention is to provide an optical sensor for tilt detection that can accurately detect tilt even when a sphere is moved a plurality of times.
【００１４】[0014]
【課題を解決するための手段】上記目的を達成するため
に、本発明の請求項１記載の傾き検出用光センサーは、
光を発生する発光部と、前記発光部からの光を受光する
受光部と、傾斜面を有する球体移動路が前記発光部と受
光部との間に形成された基体と、前記基体に取り付けら
れた蓋体と、前記基体と前記蓋体との間に前記球体移動
路に沿って移動可能に収納された球体とを備えた傾き検
出用光センサーにおいて、前記球体表面に凹部又は凸部
を設けたことを特徴とするものである。To achieve the above object, an optical sensor for detecting inclination according to claim 1 of the present invention comprises:
A light-emitting section that generates light, a light-receiving section that receives light from the light-emitting section, a base body in which a spherical moving path having an inclined surface is formed between the light-emitting section and the light-receiving section, and a light source that is attached to the base. In a tilt detection optical sensor comprising a cover, and a sphere movably housed along the sphere moving path between the base and the cover, a concave or convex portion is provided on the surface of the sphere. It is characterized by having.
【００１５】また、本発明の請求項２記載の傾き検出用
光センサーは、請求項１記載の傾き検出用光センサーに
おいて、前記球体移動路表面の材質を前記球体の材質に
比較して柔らかい材質とし、前記球体移動路表面に前記
球体表面の凸部の当接により形成された凹部を設けたこ
とを特徴とするものである。According to a second aspect of the present invention, there is provided the tilt detecting optical sensor according to the first aspect, wherein the material of the surface of the spherical moving path is softer than the material of the spherical body. And a concave portion formed by abutting a convex portion of the spherical surface on the surface of the spherical moving path.
【００１６】さらに、本発明の請求項３記載の傾き検出
用光センサーは、光を発生する発光部と、前記発光部か
らの光を受光する受光部と、傾斜面を有する球体移動路
が前記発光部と受光部との間に形成された基体と、前記
基体に取り付けられた蓋体と、前記基体と前記蓋体との
間に前記球体移動路に沿って移動可能に収納された球体
とを備えた傾き検出用光センサーにおいて、前記球体移
動路表面に凹部又は凸部を設けたことを特徴とするもの
である。Further, according to a third aspect of the present invention, there is provided an optical sensor for detecting inclination, wherein a light emitting unit for generating light, a light receiving unit for receiving light from the light emitting unit, and a spherical moving path having an inclined surface are provided. A base formed between the light emitting unit and the light receiving unit, a lid attached to the base, and a sphere movably housed along the sphere moving path between the base and the lid. And a concave or convex portion is provided on the surface of the spherical moving path.
【００１７】さらにまた、本発明の請求項４記載の傾き
検出用光センサーは、請求項３記載の傾き検出用光セン
サーにおいて、前記球体移動路表面に凸部を設けた前記
基体を、ガラス繊維を含有する樹脂にて成形してなるこ
とを特徴とするものである。According to a fourth aspect of the present invention, there is provided the tilt detecting optical sensor according to the third aspect, wherein the base provided with a convex portion on the surface of the spherical moving path is made of glass fiber. Characterized by being molded with a resin containing
【００１８】加えて、本発明の請求項５記載の傾き検出
用光センサーは、光を発生する発光部と、前記発光部か
らの光を受光する受光部と、傾斜面を有する球体移動路
が前記発光部と受光部との間に形成された基体と、前記
基体に取り付けられた蓋体と、前記基体と前記蓋体との
間に前記球体移動路に沿って移動可能に収納された球体
とを備えた傾き検出用光センサーにおいて、前記球体移
動路表面に当該球体移動路と球体との接触を線接触とす
る溝を設けたことを特徴とするものである。In addition, in the tilt detecting optical sensor according to the fifth aspect of the present invention, a light emitting section for generating light, a light receiving section for receiving light from the light emitting section, and a spherical moving path having an inclined surface are provided. A base formed between the light-emitting part and the light-receiving part, a lid attached to the base, and a sphere movably accommodated between the base and the lid along the sphere moving path. Wherein the groove for making the contact between the spherical moving path and the sphere a linear contact is provided on the surface of the spherical moving path.
【００１９】上記構成によれば、本発明の請求項１記載
の傾き検出用光センサーは、球体表面に凹部又は凸部を
設けたので、前記球体の表面積が大きくなり、前記球体
の複数回の移動により当該球体に帯電した静電気が放電
し易くなる。この結果、前記球体に帯電する静電気量が
減少し、前記球体と球体移動路との間に働く静電気力
（静電気による引力）が軽減される。また、球体の球体
移動路近傍に位置する部分の体積が小さくなるため、前
記球体と球体移動路との間に働く静電気力が軽減され
る。According to the above configuration, the inclination detecting optical sensor according to the first aspect of the present invention has the concave portion or the convex portion on the surface of the sphere. The movement makes it easier to discharge the static electricity charged on the sphere. As a result, the amount of static electricity charged on the sphere decreases, and the electrostatic force (attraction due to static electricity) acting between the sphere and the sphere moving path is reduced. Further, since the volume of the portion of the sphere located near the sphere moving path is reduced, the electrostatic force acting between the sphere and the sphere moving path is reduced.
【００２０】また、本発明の請求項２記載の傾き検出用
光センサーは、請求項１記載の傾き検出用光センサーに
おいて、球体移動路表面の材質を球体の材質に比較して
柔らかい材質とし、前記球体移動路表面に前記球体表面
の凸部の当接により形成された凹部を設けたので、別
途、前記球体移動路表面に凹部を形成する成形装置等を
不要とすることができる。According to a second aspect of the present invention, there is provided the tilt detecting optical sensor according to the first aspect, wherein the material of the surface of the spherical moving path is softer than the material of the spherical body. Since the concave portion formed by the abutment of the convex portion of the spherical surface is provided on the surface of the spherical moving path, a separate molding device or the like for forming the concave portion on the surface of the spherical moving path can be unnecessary.
【００２１】さらに、本発明の請求項３記載の傾き検出
用光センサーは、球体移動路表面に凹部又は凸部を設け
たので、前記球体移動路の表面積が大きくなり、球体の
複数回の移動により前記球体移動路に帯電した静電気が
放電し易くなる。この結果、前記球体移動路に帯電する
静電気量が減少し、前記球体と球体移動路との間に働く
静電気力が軽減される。また、球体移動路の球体近傍に
位置する部分の体積が小さくなるため、前記球体と球体
移動路との間に働く静電気力が軽減される。Further, in the tilt detecting optical sensor according to the third aspect of the present invention, since the concave or convex portion is provided on the surface of the sphere moving path, the surface area of the sphere moving path becomes large, and the sphere moves plural times. Thereby, the static electricity charged on the sphere moving path is easily discharged. As a result, the amount of static electricity charged on the sphere moving path is reduced, and the electrostatic force acting between the sphere and the sphere moving path is reduced. Further, since the volume of the portion of the sphere moving path located near the sphere is reduced, the electrostatic force acting between the sphere and the sphere moving path is reduced.
【００２２】さらにまた、本発明の請求項４記載の傾き
検出用光センサーは、請求項３記載の傾き検出用光セン
サーにおいて、前記球体移動路表面に凸部を設けた基体
を、ガラス繊維を含有する樹脂にて成形してなるので、
基体の成型金型の変更や凸部を設ける加工を行うことな
く、基体の成形と同時に球体移動路表面に凸部を設ける
ことができる。Further, in the tilt detecting optical sensor according to a fourth aspect of the present invention, in the tilt detecting optical sensor according to the third aspect, the base having the convex portion formed on the surface of the spherical moving path is made of glass fiber. Because it is molded with the contained resin,
The projection can be provided on the surface of the sphere moving path at the same time as the molding of the base without changing the molding die of the base or processing for providing the projection.
【００２３】加えて、本発明の請求項５記載の傾き検出
用光センサーは、球体移動路表面に当該球体移動路と球
体との接触を線接触とする溝を設けたので、前記球体と
球体移動路との接触は球面と線となり、その結果、球体
移動路の球体近傍に位置する部分の体積が小さくなり、
前記球体と球体移動路との間に働く静電気力が軽減され
る。In addition, in the tilt detecting optical sensor according to the fifth aspect of the present invention, since the groove for making the contact between the sphere moving path and the sphere a linear contact is provided on the surface of the sphere moving path, the sphere and the sphere are provided. Contact with the moving path becomes a spherical surface and a line, and as a result, the volume of the portion of the spherical moving path located near the sphere becomes smaller,
The electrostatic force acting between the sphere and the sphere moving path is reduced.
【００２４】[0024]
【発明の実施の形態】以下、本発明の実施の形態にかか
る傾き検出用光センサー（以下、単に「光センサー」と
称す。）について、図面とともに説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an optical sensor for detecting inclination (hereinafter simply referred to as "optical sensor") according to an embodiment of the present invention will be described with reference to the drawings.
【００２５】図１は本発明の第１実施の形態にかかる光
センサーを示す図であり、（ａ）は正面断面図であり、
（ｂ）は側面断面図である。FIG. 1 is a view showing an optical sensor according to a first embodiment of the present invention, wherein FIG. 1 (a) is a front sectional view,
(B) is a side sectional view.
【００２６】本実施の形態にかかる光センサーは、供給
された電気信号に応じて光を発生する発光部である発光
素子１と、該発光素子１からの光を受光可能に当該発光
素子１に対向して設けられた受光部である受光素子２
と、前記発光素子１と受光素子２とを遮光性樹脂で封止
することにより固定するとともに、中央部に水平面３ａ
を有し両端部に傾斜面３ｂ，３ｃを有する球体移動路３
を前記発光素子１と受光素子２との間に備えた基体４
と、該基体４に取り付けられた蓋体５と、前記球体移動
路３に沿って移動可能に前記基体４と蓋体５との間で形
成される密閉された空間に収納された球体６とを具備
し、前記球体移動路３表面および球体６表面を粗面とし
てなる。The light sensor according to the present embodiment includes a light emitting element 1 which is a light emitting unit for generating light in accordance with a supplied electric signal, and a light emitting element 1 capable of receiving light from the light emitting element 1. Light receiving element 2 which is a light receiving unit provided opposite
And the light-emitting element 1 and the light-receiving element 2 are fixed by sealing with a light-shielding resin, and a horizontal surface 3a is provided at the center.
Moving path 3 having inclined surfaces 3b and 3c at both ends
4 provided between the light emitting element 1 and the light receiving element 2
A lid 5 attached to the base 4, and a sphere 6 housed in a closed space formed between the base 4 and the lid 5 so as to be movable along the sphere moving path 3. The surface of the sphere moving path 3 and the surface of the sphere 6 are roughened.
【００２７】具体的に説明すると、前記発光素子１は、
リードフレーム上に搭載された発光チップ９が透光性樹
脂にて封止され、当該発光素子１の発光面側が略台形状
に形成されてなる。また前記受光素子２は、リードフレ
ーム上に搭載された受光チップ１０を透光性樹脂にて封
止され、当該受光素子２の受光面側を略台形状に形成さ
れてなる。More specifically, the light emitting element 1 is
The light emitting chip 9 mounted on the lead frame is sealed with a translucent resin, and the light emitting surface side of the light emitting element 1 is formed in a substantially trapezoidal shape. The light receiving element 2 is formed by sealing a light receiving chip 10 mounted on a lead frame with a translucent resin, and forming a light receiving surface side of the light receiving element 2 in a substantially trapezoidal shape.
【００２８】また、前記発光素子１および受光素子２
は、前記球体６の移動方向（球体移動路１３の長手方
向）に対して垂直方向で且つ前記球体移動路３を挟む位
置で光学的に結合するようその発光面と受光面とが対向
配置され、その発光面および受光面と両者のリードフレ
ームの外部接続端子となる部分を除いて前記基体４を構
成する遮光性樹脂にて封止され、前記発光面および受光
面はその各面が露出する前記空間の壁面に対して略面一
とされてなる。The light emitting element 1 and the light receiving element 2
The light-emitting surface and the light-receiving surface are arranged so as to be optically coupled in a direction perpendicular to the moving direction of the sphere 6 (the longitudinal direction of the sphere moving path 13) and at a position sandwiching the sphere moving path 3. The light-emitting surface and the light-receiving surface are sealed with a light-shielding resin constituting the base 4 except for the portions serving as the external connection terminals of the lead frame, and the respective surfaces of the light-emitting surface and the light-receiving surface are exposed. It is substantially flush with the wall surface of the space.
【００２９】ここで、前記受光チップ１０の２つの受光
面は、傾斜時に球体６が位置する左右の傾斜面３ｂ，３
ｃに対応する位置にそれぞれ配置され、また、前記発光
チップ９は該２つの受光面の間で対向しかつ非傾斜時に
２つの受光面への光が水平面３ａに位置する球体６によ
り遮光されない位置に配置される。Here, the two light receiving surfaces of the light receiving chip 10 have left and right inclined surfaces 3b, 3 on which the sphere 6 is located when inclined.
c, and the light-emitting chips 9 are opposed to each other between the two light-receiving surfaces, and the light to the two light-receiving surfaces is not blocked by the sphere 6 positioned on the horizontal surface 3a when the light-emitting chip 9 is not tilted. Placed in
【００３０】前記球体移動路３は、前記球体６の移動方
向に並置された前記水平面３ａと傾斜面３ｂ，３ｃとを
備えてなり、該水平面３ａは前記球体６の移動方向の略
中心に、前記傾斜面３ｂ，３ｃは前記水平面３ａを挟む
位置にそれぞれ設けられてなる。そして、この傾斜面３
ｂ，３ｃ表面および水平面３ａ表面を粗面としてなる。
また、傾斜面３ｂ，３ｃは、光センサーが搭載される基
準面（または水平面）に対して一定の角度で傾斜するよ
うに形成されている。The sphere moving path 3 includes the horizontal surface 3a and inclined surfaces 3b and 3c juxtaposed in the moving direction of the sphere 6, and the horizontal surface 3a is substantially at the center of the moving direction of the sphere 6, The inclined surfaces 3b and 3c are provided at positions sandwiching the horizontal surface 3a. And this slope 3
The surfaces b and 3c and the horizontal surface 3a are rough surfaces.
The inclined surfaces 3b and 3c are formed so as to be inclined at a fixed angle with respect to a reference surface (or a horizontal surface) on which the optical sensor is mounted.
【００３１】該球体移動路３表面を粗面とする方法とし
ては、例えば、当該球体移動路３を構成する部分（本実
施の形態では基体４全体）の材料（材質）としてガラス
繊維を配合したＰＰＳ樹脂（ポリフェニレンサルファル
ド樹脂）を用い、このＰＰＳ樹脂の射出成形後に熱処理
を行ってＰＰＳ樹脂の再結晶化によりガラス繊維を表面
に析出することで粗面とすることができる。或いは、単
純に表面をやすりで削ることで粗面とすることができ
る。As a method of making the surface of the spherical moving path 3 rough, for example, a glass fiber is blended as a material (material) of a portion constituting the spherical moving path 3 (in the present embodiment, the entire substrate 4). By using a PPS resin (polyphenylene sulfurd resin), heat treatment is performed after injection molding of the PPS resin, and glass fibers are deposited on the surface by recrystallization of the PPS resin, whereby a rough surface can be obtained. Alternatively, the surface can be roughened simply by sanding the surface.
【００３２】また、球体移動路３を構成する部分を表面
が粗面とされた球体６に比較して柔らかい材質とし、該
粗面とされた球体６を基体４と蓋体５との間で形成され
る空間内に収納した後、この光センサー自身を振ること
により、粗面である球体６表面と球体移動路３とを衝突
させて、球体移動路３表面を平面から粗面とすることも
可能である。Further, the portion constituting the sphere moving path 3 is made of a softer material than the sphere 6 having a rough surface, and the sphere 6 having the rough surface is provided between the base 4 and the lid 5. After being stored in the space to be formed, the optical sensor itself is shaken to cause the rough surface of the spherical body 6 to collide with the spherical moving path 3 to change the surface of the spherical moving path 3 from a flat surface to a rough surface. Is also possible.
【００３３】前記球体６は例えばベアリング用の鋼球か
らなり、その表面を例えばやすり等で削ることにより粗
面としてなる。また、化学処理を施すことによってその
表面を粗面にすることも可能である。The sphere 6 is made of, for example, a steel ball for a bearing, and its surface is roughened by, for example, sanding the surface. In addition, the surface can be roughened by performing a chemical treatment.
【００３４】該球体６又は球体移動路３表面の一例を図
２に示す。図において、山と山の間隔Ｘ1及び山から谷
への深さＸ2は、それぞれ１〜５０μｍとする。FIG. 2 shows an example of the surface of the sphere 6 or the sphere moving path 3. In the figure, the depth from crests distance X 1 and peaks to valleys X 2 are each a 1 to 50 [mu] m.
【００３５】また、本実施の形態では、球体６が収納さ
れた空間の全ての面、すなわち４壁面（発光素子１の発
光面および受光素子２の受光面を含む）および上面につ
いても粗面としている。In this embodiment, all surfaces of the space in which the spherical body 6 is stored, that is, the four wall surfaces (including the light emitting surface of the light emitting element 1 and the light receiving surface of the light receiving element 2) and the upper surface are also rough surfaces. I have.
【００３６】ここで、前記発光面および受光面について
は粗面とせず、平面とすることにより、光の乱反射を防
止できる。Here, irregular reflection of light can be prevented by making the light emitting surface and the light receiving surface flat instead of rough surfaces.
【００３７】そして、本実施の形態の光センサーは、傾
斜面３ｂ，３ｃの傾斜角度よりも小さく傾いたとき或い
は全く傾いていないときには、球体６が自身の自重によ
り球体移動路３の水平面３ａ上に移動し、発光チップ９
からの光が前記球体６にて遮断されずに受光チップ１０
の２つの受光面にそれぞれ入射し、この各受光面からの
出力信号を受けて光センサーおよび光センサーを搭載し
た機器が傾いていないことを検出する。When the optical sensor according to the present embodiment is inclined less than the inclination angle of the inclined surfaces 3b and 3c or is not inclined at all, the sphere 6 is placed on the horizontal plane 3a of the sphere moving path 3 by its own weight. Move to the light emitting chip 9
Light from the light receiving chip 10 without being blocked by the sphere 6
, Respectively, and receives output signals from the respective light receiving surfaces to detect that the optical sensor and the device equipped with the optical sensor are not tilted.
【００３８】また、傾斜面３ｂの傾斜角度よりも大きく
左に傾いたときには、球体６が自身の自重により球体移
動路３の傾斜面３ｂ上に移動し、前記発光チップ９から
の光を遮断する。これによって、受光チップ１０の傾斜
面３ｂに対応する位置に配置された受光面には発光チッ
プ９からの光が入射せず、傾斜面３ｃに対応する位置に
配置された受光面にのみ発光チップ９からの光が入射す
ることになり、傾斜面３ｃに対応する位置に配置された
受光面からの出力信号を受けて光センサーおよび光セン
サーを搭載した機器が左に傾いていることを検出する。When the ball 6 is tilted to the left more than the angle of inclination of the inclined surface 3b, the sphere 6 moves on the inclined surface 3b of the sphere moving path 3 by its own weight, and blocks the light from the light emitting chip 9. . As a result, light from the light emitting chip 9 does not enter the light receiving surface located at the position corresponding to the inclined surface 3b of the light receiving chip 10, and the light emitting chip only enters the light receiving surface located at the position corresponding to the inclined surface 3c. 9 from the light receiving surface, and receives an output signal from a light receiving surface disposed at a position corresponding to the inclined surface 3c to detect that the optical sensor and the device equipped with the optical sensor are tilted to the left. .
【００３９】さらに、傾斜面３ｃの傾斜角度よりも大き
く右に傾いたたときには、球体６が自身の自重により球
体移動路３の傾斜面３ｃ上に移動し、前記発光チップ９
からの光を遮断する。これによって、受光チップ１０の
傾斜面３ｃに対応する位置に配置された受光面には発光
チップ９からの光が入射せず、傾斜面３ｂに対応する位
置に配置された受光面にのみ発光チップ９からの光が入
射することになり、傾斜面３ｂに対応する位置に配置さ
れた受光面からの出力信号を受けて光センサーおよび光
センサーを搭載した機器が右に傾いていることを検出す
る。Further, when the sphere 6 is tilted to the right more than the inclination angle of the inclined surface 3c, the sphere 6 moves on the inclined surface 3c of the sphere moving path 3 by its own weight, and
Block light from As a result, light from the light emitting chip 9 does not enter the light receiving surface of the light receiving chip 10 located at the position corresponding to the inclined surface 3c, and the light emitting chip only enters the light receiving surface located at the position corresponding to the inclined surface 3b. 9 from the light receiving surface, and receives an output signal from a light receiving surface disposed at a position corresponding to the inclined surface 3b to detect that the optical sensor and the device equipped with the optical sensor are tilted to the right. .
【００４０】このように、球体６は光センサーおよび光
センサーを搭載した機器の傾きに応じて常に球体移動路
３を移動するため、この球体６の複数回の移動（特に、
度重なる移動）に伴って球体６および球体移動路３に静
電気が帯電することになる。As described above, since the sphere 6 always moves on the sphere moving path 3 in accordance with the inclination of the optical sensor and the device on which the optical sensor is mounted, the sphere 6 moves a plurality of times (particularly,
With the repeated movement), the sphere 6 and the sphere moving path 3 are charged with static electricity.
【００４１】しかしながら、本実施の形態の光センサー
は、前記球体移動路３の水平面３ａおよび傾斜面３ｂ，
３ｃ表面を粗面とすることで、前記水平面３ａおよび傾
斜面３ｂ，３ｃの表面積を大きくし、前記球体６の複数
回の移動により前記水平面３ａおよび傾斜面３ｂ，３ｃ
に帯電した静電気を放電し易くしている。また、球体６
表面を粗面とすることによっても球体６に帯電した静電
気を放電し易くしている。この結果、前記水平面３ａお
よび傾斜面３ｂ，３ｃ並びに球体６に帯電する静電気量
が減少し、前記球体６と球体移動路３との間に働く静電
気力が軽減される。However, the optical sensor according to the present embodiment includes a horizontal surface 3a and an inclined surface 3b of the spherical moving path 3.
By making the surface 3c rough, the surface area of the horizontal plane 3a and the inclined planes 3b and 3c is increased, and the horizontal plane 3a and the inclined planes 3b and 3c are moved by moving the sphere 6 a plurality of times.
This makes it easier to discharge static electricity that has been charged. The sphere 6
By making the surface rough, the static electricity charged on the sphere 6 is easily discharged. As a result, the amount of static electricity charged on the horizontal plane 3a, the inclined surfaces 3b, 3c and the sphere 6 is reduced, and the electrostatic force acting between the sphere 6 and the sphere moving path 3 is reduced.
【００４２】さらに、表面を粗面にしない球体移動路お
よび球体に比較して、球体移動路３および球体６の互い
が近接する部分の体積が小さくなるため、前記球体６と
球体移動路３との間に働く静電気力が軽減される。Furthermore, the volume of the sphere moving path 3 and the sphere 6 which are close to each other is smaller than that of the sphere moving path and the sphere whose surface is not roughened. The electrostatic force that works during is reduced.
【００４３】これらの静電気力の軽減により、前記球体
６が静電気力によって前記球体移動路３に吸着されるこ
とを確実に防止できる。したがって、光センサーの傾き
の有無を球体６の移動回数にかかわらず、正確に検出で
きる。By reducing the electrostatic force, it is possible to reliably prevent the sphere 6 from being attracted to the sphere moving path 3 by the electrostatic force. Therefore, the presence or absence of the inclination of the optical sensor can be accurately detected regardless of the number of movements of the sphere 6.
【００４４】なお、本実施の形態では、傾斜面３ｂ，３
ｃを対称状に設けているが、光センサーの使用目的や設
計仕様に応じて単一な傾斜面や非対象の傾斜面で構成す
ることも可能であり、また部分的または全体的に局面で
構成することも可能であることはいうまでもない。In this embodiment, the inclined surfaces 3b, 3
Although c is provided symmetrically, it can be constituted by a single inclined surface or an asymmetrical inclined surface depending on the purpose of use and design specifications of the optical sensor, and can be partially or wholly formed on the surface. Needless to say, it can be configured.
【００４５】また、球体移動路３表面および球体６表面
の両表面を粗面としたが、前記球体移動路３表面および
球体６表面の何れか一方を粗面とし、他方を非凹凸面
（凹凸のない平面又は球面）としても良い。図３は、球
体移動路４表面を平面とし球体６表面を粗面とした光セ
ンサーの要部断面図であり、図４は、球体移動路３表面
を粗面とし球体６表面を凹凸のない球面とした光センサ
ーの要部断面図である。Further, both the surface of the spherical moving path 3 and the surface of the spherical body 6 are roughened, but either the surface of the spherical moving path 3 or the surface of the spherical body 6 is roughened, and the other is a non-uneven surface (uneven surface). (A flat surface or a spherical surface). FIG. 3 is a cross-sectional view of a main part of an optical sensor in which the surface of the spherical moving path 4 is flat and the surface of the spherical body 6 is rough, and FIG. It is principal part sectional drawing of the optical sensor made into a spherical surface.
【００４６】さらに、上記の球体移動路３および球体６
等の表面積を大きくする構成は、上記の粗面に限らず、
凹部および凸部の少なくとも一方によって表面積を大き
くする構成としても良い。Further, the above-mentioned sphere moving path 3 and sphere 6
The configuration to increase the surface area such as is not limited to the above rough surface,
The surface area may be increased by at least one of the concave portion and the convex portion.
【００４７】図５は本発明の第２実施の形態にかかる光
センサーを示す図である。図６は図５に示す光センサー
の断面図であり（ａ）は図５のＡ−Ａ′断面図であり、
（ｂ）は図５のＢ−Ｂ′断面図である。本実施の形態に
ついて上述した第１実施の形態と相違する点のみ説明す
る。FIG. 5 is a view showing an optical sensor according to a second embodiment of the present invention. FIG. 6 is a cross-sectional view of the optical sensor shown in FIG. 5, (a) is a cross-sectional view taken along the line AA 'of FIG.
FIG. 6B is a sectional view taken along the line BB ′ of FIG. Only the points of the present embodiment that differ from the first embodiment will be described.
【００４８】本実施の形態にかかる光センサーは、図１
に示す光センサーの球体移動路３表面および球体６表面
を粗面にするに代わって、球体移動路３の水平面３ａお
よび傾斜面３ａ，３ｂと、球体６を収納する空間を構成
する球体移動方向に対して垂直の２壁面および上面との
略中央に、球体６の移動方向に延びる溝７を設けてな
る。The optical sensor according to the present embodiment is shown in FIG.
Instead of roughening the surface of the sphere moving path 3 and the surface of the sphere 6 of the optical sensor shown in (1), the horizontal plane 3a and the inclined surfaces 3a, 3b of the sphere moving path 3 and the sphere moving direction forming the space for accommodating the sphere 6 A groove 7 extending in the moving direction of the sphere 6 is provided substantially at the center between the two wall surfaces and the upper surface perpendicular to the groove.
【００４９】前記溝７は例えば略コ字状からなり、その
両端部によって、球体６を支持して球体移動路３と球体
６との接触を線接触とするとともに、球体６が前記空間
を構成する球体移動方向に対して平行の２壁面に対して
接触することを防止するものであり、その深さは球体６
が溝底面に接触しない程度の深さを有し、また幅は球体
６が溝７上に乗った状態から容易に外れないだけの幅を
有する。The groove 7 has, for example, a substantially U-shape. The ends of the groove 7 support the sphere 6 so that the contact between the sphere moving path 3 and the sphere 6 is in linear contact, and the sphere 6 forms the space. To prevent contact with two wall surfaces parallel to the moving direction of the sphere.
Has a depth that does not make contact with the groove bottom surface, and has a width that does not allow the spherical body 6 to easily come off the groove 7.
【００５０】該構成により、前記球体６と球体移動路３
との接触は球面と線となり、球体移動路３の球体６近傍
に位置する部分の体積が小さくなり、前記球体６と球体
移動路３との間に働く静電気力が軽減される。また、球
体移動路３の表面積を大きくし、前記球体６の複数回の
移動により前記球体移動路３に帯電した静電気を放電し
易くしている。With this configuration, the sphere 6 and the sphere moving path 3
The contact with the sphere forms a line with the spherical surface, the volume of the portion of the sphere moving path 3 located near the sphere 6 is reduced, and the electrostatic force acting between the sphere 6 and the sphere moving path 3 is reduced. In addition, the surface area of the sphere moving path 3 is increased, so that the static electricity charged in the sphere moving path 3 due to the plurality of movements of the sphere 6 is easily discharged.
【００５１】この結果、前記球体６と球体移動路３との
間に働く静電気力が軽減され、前記球体６が静電気力に
よって前記球体移動路３に吸着されることを確実に防止
でき、光センサーの傾きの有無を球体６の移動回数にか
かわらず、正確に検出できる。As a result, the electrostatic force acting between the sphere 6 and the sphere moving path 3 is reduced, and the sphere 6 can be reliably prevented from being attracted to the sphere moving path 3 by the electrostatic force. Is accurately detected regardless of the number of movements of the sphere 6.
【００５２】また、溝７により、球体６が球体移動方向
に対して平行の壁面に接触することがほとんどないた
め、従来のように該壁面接触による球体６の帯電を確実
に防止できる。Further, since the sphere 6 hardly comes into contact with the wall surface parallel to the moving direction of the sphere due to the groove 7, the charging of the sphere 6 due to the contact with the wall surface can be reliably prevented as in the related art.
【００５３】本実施の形態では、球体６を収納する空間
の球体移動方向に対して垂直の壁面および上面と球体移
動路３との各表面に直接溝７を設けた構成としたが、図
７に示すように、各表面に空間内に突出して球体移動方
向に延び、互いが所定間隔を有して平行する２本の帯状
の突起８を設けることによって、当該突起８，８の側面
と各表面とからなる溝７ａを設ける構成としてもよい。
前記突起８の断面形状としては、例えば先端が尖り、根
元側が太い形状とする。In the present embodiment, the groove 7 is provided directly on the wall surface and the upper surface of the space for accommodating the sphere 6 in the space for accommodating the sphere 6 and on each surface of the sphere movement path 3. As shown in the figure, by providing two strip-shaped projections 8 protruding into the space and extending in the direction of movement of the sphere on each surface and being parallel to each other at a predetermined interval, the side faces of the projections 8, 8 and A configuration in which a groove 7a composed of a surface is provided may be adopted.
The cross-sectional shape of the protrusion 8 is, for example, a shape with a sharp tip and a thick base.
【００５４】該構成によっても、前記溝７ａにより前記
球体６と球体移動路３（具体的には突起８，８）との接
触が球面と線接触となるため、上述した溝７を設けた場
合同様、光センサーの傾きの有無を球体６の移動回数に
かかわらず、正確に検出できる。Also according to this structure, the contact between the sphere 6 and the sphere moving path 3 (specifically, the projections 8, 8) is in linear contact with the spherical surface by the groove 7a. Similarly, the presence or absence of the inclination of the optical sensor can be accurately detected regardless of the number of movements of the sphere 6.
【００５５】[0055]
【発明の効果】以上説明したように、本発明の請求項１
記載の傾き検出用センサーによれば、球体に帯電する静
電気量を減少できるとともに球体の球体移動路近傍に位
置する部分の体積を減少できる。これにより、球体と球
体移動路との間に働く静電気力を軽減でき、該静電気力
によって球体が球体移動路に吸着されることを確実に防
止できる。よって、光センサーの傾きの有無を球体の移
動回数にかかわらず、正確に検出できる。As described above, according to the first aspect of the present invention,
According to the tilt detection sensor described above, the amount of static electricity charged to the sphere can be reduced, and the volume of a portion of the sphere located near the sphere moving path can be reduced. Thereby, the electrostatic force acting between the sphere and the sphere moving path can be reduced, and the sphere can be reliably prevented from being attracted to the sphere moving path by the electrostatic force. Therefore, the presence or absence of the inclination of the optical sensor can be accurately detected regardless of the number of movements of the sphere.
【００５６】また、本発明の請求項２記載の傾き検出用
光センサーによれば、球体移動路表面に凹部を形成する
成形装置等を不要とすることができ、製造工程および製
造コストを低減できる。According to the tilt detecting optical sensor of the second aspect of the present invention, a molding device for forming a concave portion on the surface of the spherical moving path can be eliminated, and the manufacturing process and the manufacturing cost can be reduced. .
【００５７】さらに、本発明の請求項３記載の傾き検出
用光センサーによれば、球体移動路に帯電する静電気量
を減少できるとともに球体移動路の球体近傍に位置する
部分の体積を減少できる。これにより、球体と球体移動
路との間に働く静電気力を軽減でき、該静電気力によっ
て球体が球体移動路に吸着されることを確実に防止でき
る。よって、光センサーの傾きの有無を球体の移動回数
にかかわらず、正確に検出できる。Furthermore, according to the tilt detecting optical sensor of the third aspect of the present invention, the amount of static electricity charged on the sphere moving path can be reduced and the volume of a portion of the sphere moving path located near the sphere can be reduced. Thereby, the electrostatic force acting between the sphere and the sphere moving path can be reduced, and the sphere can be reliably prevented from being attracted to the sphere moving path by the electrostatic force. Therefore, the presence or absence of the inclination of the optical sensor can be accurately detected regardless of the number of movements of the sphere.
【００５８】さらにまた、本発明の請求項４記載の傾き
検出用光センサーによれば、基体の成型金型の変更や凸
部を設ける加工を行うことなく、基体の成形と同時に球
体移動路表面に凸部を設けることができ、製造工程およ
び製造コストを低減できる。Further, according to the tilt detecting optical sensor of the fourth aspect of the present invention, the surface of the spherical moving path can be formed at the same time as the molding of the base without changing the molding die of the base or processing for providing the convex portion. Can be provided with a convex portion, so that the manufacturing process and the manufacturing cost can be reduced.
【００５９】加えて、本発明の請求項５記載の傾き検出
用光センサーによれば、球体と球体移動路との接触が球
面と線となり、球体移動路の球体近傍に位置する部分の
体積が小さくなり、前記球体と傾斜面との間に働く静電
気力を軽減でき、該静電気力によって球体が球体移動路
に吸着されることを確実に防止できる。よって、光セン
サーの傾きの有無を球体の移動回数にかかわらず、正確
に検出できる。In addition, according to the tilt detecting optical sensor of the fifth aspect of the present invention, the contact between the sphere and the sphere moving path becomes a line with the spherical surface, and the volume of the portion of the sphere moving path located near the sphere is reduced. As a result, the electrostatic force acting between the sphere and the inclined surface can be reduced, and the electrostatic force can reliably prevent the sphere from being attracted to the sphere moving path. Therefore, the presence or absence of the inclination of the optical sensor can be accurately detected regardless of the number of movements of the sphere.
【図１】本発明の第１実施の形態にかかる傾き検出用セ
ンサーを示す断面図である。FIG. 1 is a cross-sectional view showing a tilt detection sensor according to a first embodiment of the present invention.
【図２】球体または球体移動路表面の一例を示す断面図
である。FIG. 2 is a sectional view showing an example of a sphere or a surface of a sphere moving path.
【図３】球体移動路表面を平面とし、球体表面を凹凸面
とした傾き検出用センサーを示す要部断面図である。FIG. 3 is a cross-sectional view of an essential part showing an inclination detecting sensor having a spherical moving path surface as a flat surface and a spherical surface as an uneven surface.
【図４】球体移動路表面を凹凸面とし、球体表面を非凹
凸面とした傾き検出用センサーを示す要部断面図であ
る。FIG. 4 is a cross-sectional view of an essential part showing an inclination detecting sensor in which the surface of a sphere moving path has an uneven surface and the surface of the sphere has a non-uneven surface.
【図５】本発明の第２実施の形態にかかる傾き検出用セ
ンサーを示す図である。FIG. 5 is a diagram showing a tilt detection sensor according to a second embodiment of the present invention.
【図６】図５に示す光センサーの断面図である。FIG. 6 is a sectional view of the optical sensor shown in FIG.
【図７】２本の帯状の突起から溝を設けてなる傾き検出
用センサーを示す要部断面図である。FIG. 7 is a cross-sectional view of an essential part showing an inclination detecting sensor in which a groove is provided from two band-shaped protrusions.
【図８】従来の傾き検出用センサーを示す図である。FIG. 8 is a diagram showing a conventional inclination detecting sensor.
【図９】従来の他の傾き検出用センサーを示す概略図で
ある。FIG. 9 is a schematic diagram showing another conventional inclination detecting sensor.
【図１０】図９に示す傾き検出用センサーを右に９０度
傾けた状態を示す図である。10 is a diagram showing a state in which the tilt detection sensor shown in FIG. 9 is tilted 90 degrees to the right.
１ 発光素子 ２ 受光素子 ３ 球体移動路 ３ａ 水平面 ３ｂ，３ｃ 傾斜面 ４ 基体 ５ 蓋体 ６ 球体 ７，７ａ 溝 ８ 突起 ９ 発光チップ １０ 受光チップ DESCRIPTION OF SYMBOLS 1 Light emitting element 2 Light receiving element 3 Spherical moving path 3a Horizontal plane 3b, 3c Inclined surface 4 Base 5 Lid 6 Sphere 7, 7a Groove 8 Projection 9 Light emitting chip 10 Light receiving chip
Claims (5)
の光を受光する受光部と、傾斜面を有する球体移動路が
前記発光部と受光部との間に形成された基体と、前記基
体に取り付けられた蓋体と、前記基体と前記蓋体との間
に前記球体移動路に沿って移動可能に収納された球体と
を備えた傾き検出用光センサーにおいて、 前記球体表面に凹部又は凸部を設けたことを特徴とする
傾き検出用光センサー。A light-emitting unit that generates light, a light-receiving unit that receives light from the light-emitting unit, a base body having a spherical moving path having an inclined surface formed between the light-emitting unit and the light-receiving unit, A tilt detection optical sensor comprising: a lid attached to the base; and a sphere movably housed along the sphere moving path between the base and the lid. Alternatively, an optical sensor for detecting inclination, wherein a convex portion is provided.
材質に比較して柔らかい材質とし、前記球体移動路表面
に前記球体表面の凸部の当接により形成された凹部を設
けたことを特徴とする請求項１記載の傾き検出用光セン
サー。2. The method according to claim 1, wherein the material of the surface of the sphere moving path is made of a softer material than the material of the sphere, and the surface of the sphere moving path is provided with a concave portion formed by abutment of a projection on the surface of the sphere. The tilt detecting optical sensor according to claim 1, wherein:
の光を受光する受光部と、傾斜面を有する球体移動路が
前記発光部と受光部との間に形成された基体と、前記基
体に取り付けられた蓋体と、前記基体と前記蓋体との間
に前記球体移動路に沿って移動可能に収納された球体と
を備えた傾き検出用光センサーにおいて、 前記球体移動路表面に凹部又は凸部を設けたことを特徴
とする傾き検出用光センサー。3. A light-emitting unit for generating light, a light-receiving unit for receiving light from the light-emitting unit, a base body having a spherical moving path having an inclined surface formed between the light-emitting unit and the light-receiving unit, A tilt detection optical sensor comprising: a lid attached to the base; and a sphere movably housed along the sphere movement path between the base and the lid. An inclination-detecting optical sensor, wherein a concave portion or a convex portion is provided in the optical sensor.
基体を、ガラス繊維を含有する樹脂にて成形してなるこ
とを特徴とする請求項３記載の傾き検出用光センサー。4. The optical sensor for detecting inclination according to claim 3, wherein the base having a convex portion formed on the surface of the spherical moving path is formed of a resin containing glass fiber.
の光を受光する受光部と、傾斜面を有する球体移動路が
前記発光部と受光部との間に形成された基体と、前記基
体に取り付けられた蓋体と、前記基体と前記蓋体との間
に前記球体移動路に沿って移動可能に収納された球体と
を備えた傾き検出用光センサーにおいて、 前記球体移動路表面に当該球体移動路と球体との接触を
線接触とする溝を設けたことを特徴とする傾き検出用光
センサー。5. A light-emitting unit for generating light, a light-receiving unit for receiving light from the light-emitting unit, a base body having a spherical moving path having an inclined surface formed between the light-emitting unit and the light-receiving unit, A tilt detection optical sensor comprising: a lid attached to the base; and a sphere movably housed along the sphere movement path between the base and the lid. A tilt detection optical sensor, characterized in that a groove for making the contact between the sphere moving path and the sphere a line contact is provided in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11633898A JP3829013B2 (en) | 1998-04-27 | 1998-04-27 | Light sensor for tilt detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11633898A JP3829013B2 (en) | 1998-04-27 | 1998-04-27 | Light sensor for tilt detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11304476A true JPH11304476A (en) | 1999-11-05 |
| JP3829013B2 JP3829013B2 (en) | 2006-10-04 |
Family
ID=14684489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11633898A Expired - Fee Related JP3829013B2 (en) | 1998-04-27 | 1998-04-27 | Light sensor for tilt detection |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3829013B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009064760A (en) * | 2007-09-10 | 2009-03-26 | Rohm Co Ltd | Inclination sensor |
| JP2009283337A (en) * | 2008-05-23 | 2009-12-03 | Rohm Co Ltd | Tilt sensor |
| JP2010103093A (en) * | 2008-09-26 | 2010-05-06 | Honda Motor Co Ltd | Tilt sensor structure for vehicle |
| JP2010103002A (en) * | 2008-10-24 | 2010-05-06 | Rohm Co Ltd | Inclination sensor and method of manufacturing the same |
| CN108061541A (en) * | 2017-12-07 | 2018-05-22 | 南阳理工学院 | A kind of civil engineering level meter |
-
1998
- 1998-04-27 JP JP11633898A patent/JP3829013B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009064760A (en) * | 2007-09-10 | 2009-03-26 | Rohm Co Ltd | Inclination sensor |
| JP2009283337A (en) * | 2008-05-23 | 2009-12-03 | Rohm Co Ltd | Tilt sensor |
| JP2010103093A (en) * | 2008-09-26 | 2010-05-06 | Honda Motor Co Ltd | Tilt sensor structure for vehicle |
| JP2010103002A (en) * | 2008-10-24 | 2010-05-06 | Rohm Co Ltd | Inclination sensor and method of manufacturing the same |
| CN108061541A (en) * | 2017-12-07 | 2018-05-22 | 南阳理工学院 | A kind of civil engineering level meter |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3829013B2 (en) | 2006-10-04 |
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