JPH0399295A - Indicating device for vehicle - Google Patents
Indicating device for vehicleInfo
- Publication number
- JPH0399295A JPH0399295A JP23461389A JP23461389A JPH0399295A JP H0399295 A JPH0399295 A JP H0399295A JP 23461389 A JP23461389 A JP 23461389A JP 23461389 A JP23461389 A JP 23461389A JP H0399295 A JPH0399295 A JP H0399295A
- Authority
- JP
- Japan
- Prior art keywords
- light
- transparent body
- incident
- pointer
- scattered
- 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.)
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- 230000010287 polarization Effects 0.000 claims abstract description 18
- 239000002245 particle Substances 0.000 claims abstract description 8
- 230000004907 flux Effects 0.000 abstract description 9
- 238000000149 argon plasma sintering Methods 0.000 abstract description 5
- 230000003760 hair shine Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 239000013307 optical fiber Substances 0.000 description 3
- 239000011859 microparticle Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001149 cognitive effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- Details Of Measuring And Other Instruments (AREA)
- Indicating Measured Values (AREA)
Abstract
Description
【発明の詳細な説明】
［発明の目的］
（産業上の利用分野）
この発明は、車両速度などの現況が運転者等に確認でき
る目的で装着されている無指針式アナログメータ表示装
置に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a pointer-less analog meter display device that is installed for the purpose of allowing a driver or the like to check current conditions such as vehicle speed.
（従来の技術）
従来の車両などに装着されているポインタレスいわゆる
無指針式アナログメータ表示装置、例えば、車両のスピ
ードメータ（速度計）としては第５図及び第６図に示す
ようなものがある。(Prior Art) Conventional pointerless analog meter display devices installed in vehicles, such as vehicle speedometers, are shown in Figures 5 and 6. be.
このように速度計は、多数の光の散乱体１が封入された
アクリル樹脂製の平板パネル状の透明体２と、その上に
設けられた文字盤３と指針変換部４とから構成されてい
る。In this way, the speedometer is composed of a flat panel-shaped transparent body 2 made of acrylic resin in which a large number of light scatterers 1 are sealed, and a dial 3 and a pointer converter 4 provided thereon. There is.
第６図に指針変換部４の基本構造を示す。FIG. 6 shows the basic structure of the pointer converter 4.
この指針変換部４は、車両の速度に応じて回転するモー
タ５と、これと連結軸６で結ばれ回転運動する回転鏡７
とコリメータレンズＡ９と、レーザダイオード８とから
構成されている。This pointer conversion unit 4 includes a motor 5 that rotates according to the speed of the vehicle, and a rotating mirror 7 that is connected to the motor 5 by a connecting shaft 6 and rotates.
, a collimator lens A9, and a laser diode 8.
つぎに、作用について説明する。Next, the effect will be explained.
このように構成された速度計において、レーザダイオー
ド８から発光されるレーザ丸線は、コリメータレンズＡ
９で平行な光線のビームすなわち平行光束１０に交換さ
れ、回転鏡７に照射される。In the speedometer configured in this way, the laser round wire emitted from the laser diode 8 is connected to the collimator lens A.
At 9, the light is exchanged into a parallel beam of light, that is, a parallel light beam 10, and is irradiated onto the rotating mirror 7.
回転鏡７に入射された平行光束１０は、回転鏡７が、車
両の速度に連動して回転するモータ５により、時々刻々
回転運動するようにモータ５と連結軸６により結ばれて
いるため、入射時点での角度すなわち車速に相当する角
度で入射されて、光の散乱体１の封入されている透明体
２に反射した平行光束１０として照射されている。透明
体２に入射した平行光束１０は、光が波長より小さい分
子や原子に衝突して方向を変える現象、つまり“散乱”
を散乱体１が分散封入された透明体２の内部で起す。こ
の散乱は、入射した平行光束１０が入射された範囲内の
散乱体１と衝突して定めのない方向に向きを変える現象
を起こすため、棒状に光り輝く矢印の方向の光束散乱光
１１として、あたかも指針があるかのように計器板前面
１９でドライバの目２５により認知できるのである。The parallel light beam 10 incident on the rotating mirror 7 is connected to the motor 5 by the connecting shaft 6 so that the rotating mirror 7 rotates momentarily by the motor 5, which rotates in conjunction with the speed of the vehicle. The light is incident at the angle at the time of incidence, that is, at an angle corresponding to the vehicle speed, and is irradiated as a parallel light beam 10 reflected on the transparent body 2 in which the light scatterer 1 is enclosed. The parallel light beam 10 incident on the transparent body 2 is caused by a phenomenon in which the light collides with molecules or atoms smaller than the wavelength and changes its direction, that is, "scattering".
occurs inside the transparent body 2 in which the scatterer 1 is dispersed and sealed. This scattering causes a phenomenon in which the incident parallel light beam 10 collides with the scatterer 1 within the incident range and changes its direction in an undetermined direction. It can be recognized by the driver's eyes 25 on the front surface 19 of the instrument panel as if there were a pointer.
（発明が解決しようとする課題）
しかしながら、このような従来の無指針式アナログメー
タ表示装置においては、既存の指針式アナログメータ表
示装置の指針と同じような認知感覚、すなわち、指針に
よる表示の明確さも要望されている。この要望に対応す
る方法として、レーザ光線の出力をあげる、すなわち、
照度を強くする方法をとれば目的は達成されるがもじれ
ないのであるが、前述したごとく、平行光束１ｏが散乱
体１に照射されて発生する散乱光は、方向の定めがない
ため、この光束散乱光（即ちポインタ部）１１の周囲に
平行光束１０の照度に応じた半明輝部となって輝き、計
器板前面１９がらみると視覚的には横方向の符号１２と
して示される“にじみ”いわゆるフレア現象が発生した
ものとなる。このフレア現象は、二次散乱光１２が光束
散乱光１１の光路内の光散乱体１から発生するためで、
光源のレーザダイオード８の照度の増減に比例し、照度
を増加させると光散乱光１１の散乱光量も増加し、指針
としての明確さも強くなるがこれと同時に光束散乱光１
１の周囲の二次散乱光１２も増加することとなる。した
がって、この光束散乱光１１の明確さは、この二次散乱
光１２が原因で光源照度の増減では解決できないという
問題がある。(Problem to be Solved by the Invention) However, in such conventional pointer-less analog meter display devices, the same cognitive feeling as the pointer of the existing pointer-type analog meter display device, that is, the clarity of the indication by the pointer. This is also requested. As a method to meet this demand, increasing the output of the laser beam, that is,
If the method of increasing the illuminance is used, the objective can be achieved without any problems, but as mentioned above, the scattered light generated when the parallel light beam 1o is irradiated onto the scatterer 1 has no fixed direction. Around the scattered light beam (i.e., the pointer portion) 11, a semi-bright bright area corresponding to the illuminance of the parallel light beam 10 shines, and when viewed from the front surface of the instrument panel 19, it visually shows "bleeding" as a horizontal symbol 12. This means that a so-called flare phenomenon has occurred. This flare phenomenon occurs because the secondary scattered light 12 is generated from the light scatterer 1 in the optical path of the light flux scattered light 11.
It is proportional to the increase/decrease in the illuminance of the laser diode 8 as the light source, and as the illuminance increases, the amount of scattered light 11 also increases, and the clarity as a guide becomes stronger, but at the same time, the scattered light 11
The secondary scattered light 12 around 1 also increases. Therefore, there is a problem in that the clarity of this luminous flux scattered light 11 cannot be solved by increasing or decreasing the light source illuminance due to this secondary scattered light 12.
第５図は、このフレア現象すなわち二次散乱光１２の現
況を示した例である。FIG. 5 is an example showing the current state of this flare phenomenon, that is, the secondary scattered light 12.
さらに、夜間やトンネル等の環境下での車両等の運転の
際、計器板前面１９の全体が、この二次散乱光１２によ
り半明輝状態となり、光束散乱光１１や数値の認知が不
明確となり表示品質の低下を招くという問題点もあった
。そこで、この発明は二次散乱光によりぼける事のない
明確な光束による表示の得られる車両用表示装置を提供
し、もって前記問題を解決する事を目的とする。Furthermore, when driving a vehicle at night or in an environment such as a tunnel, the entire front surface of the instrument panel 19 becomes semi-bright due to the secondary scattered light 12, making it unclear to recognize the luminous flux scattered light 11 and numerical values. There was also the problem that display quality deteriorated. SUMMARY OF THE INVENTION An object of the present invention is to provide a display device for a vehicle that can display a clear luminous flux that is not blurred by secondary scattered light, thereby solving the above problem.
［発明の構成］
（課題を解決するための手段）
この発明は、前記目的を達成するため、車両等に積載さ
れる無指針式アナログメータ表示装置においてパネル状
の透明体に封入される多数の光の散乱体としての微小粒
体の粒子直径を、入射光波長より十分に短かい長さに選
定し、かつ、前記入射光が前記透明体の側面から入射さ
れる散乱手段と、前記散乱手段への入射光が透明体の表
面に平行な偏光方向を持つ光線として入射される偏光手
段を有する構成としたものである。[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides a method for achieving the above-mentioned object by incorporating a large number of points enclosed in a panel-shaped transparent body in a pointer-less analog meter display device mounted on a vehicle or the like. a scattering means in which the diameter of the microparticles as a light scatterer is selected to be sufficiently shorter than the wavelength of the incident light, and the incident light enters from a side surface of the transparent body; and the scattering means The structure includes a polarizing means so that the incident light is incident as a light beam having a polarization direction parallel to the surface of the transparent body.
（作用）
散乱手段への入射光が透明体表面に平行な偏光方向を持
っており、かつ、前記入射光は透明ていの側面から入射
される。更に透明体内封入の散乱体の粒子直径が入射光
波長に比して格段と短かい長さに選定されているため、
入射光が衝突して生ずる散乱光は偏光方向での散乱の幅
が小さいもの、即ち、入射光が横に広がらないものとな
る為、その表示は明確なポインタ部としてドライバの目
に達する。(Function) The incident light to the scattering means has a polarization direction parallel to the surface of the transparent body, and the incident light is incident from the side surface of the transparent body. Furthermore, since the particle diameter of the scatterer enclosed in the transparent body is selected to be much shorter than the wavelength of the incident light,
The scattered light generated by the collision of the incident light has a small scattering width in the polarization direction, that is, the incident light does not spread laterally, so the display reaches the driver's eyes as a clear pointer.
（実施例）
以下、この発明の一実施例を第１図〜第３図に基づいて
説明する。(Example) Hereinafter, an example of the present invention will be described based on FIGS. 1 to 3.
まず、構成を説明すると、車両の速度に応じて回転する
モータ５とこれと連結軸６で結ばれ回転運動する偏光板
１３の付設された回転鏡１４とコリメータレンズＡ９、
レーザダイオード８、透明体２から構成されており、こ
の透明体２中にＴｉＯ２等の光散乱体１が多数閉じこめ
られている。First, to explain the configuration, there is a motor 5 that rotates according to the speed of the vehicle, a rotating mirror 14 connected to the motor 5 by a connecting shaft 6 and equipped with a polarizing plate 13 that rotates, and a collimator lens A9.
It is composed of a laser diode 8 and a transparent body 2, and a large number of light scatterers 1 such as TiO2 are confined in this transparent body 2.
この、散乱体の直径ａは使用する光の波長λに較ベて十
分に小さく構成しである。又、使用する光線は透明体２
の表面１９に平行な偏光方向を持つように偏光板１３に
より変換入射されるものである。例えば波長λは５７０
ｎｍ、直径ａは３０μｍである。The diameter a of this scatterer is configured to be sufficiently small compared to the wavelength λ of the light used. Also, the light beam used is transparent body 2
The incident light is converted by the polarizing plate 13 so that the polarization direction is parallel to the surface 19 of the light beam. For example, the wavelength λ is 570
nm, and the diameter a is 30 μm.
次に作用を第２図及び第３図をも参照して説明する。こ
のように構成された速度計において、レーザダイオード
８から発射されるレーザ光線は、コリロータレンズＡ９
で平行光束１ｏに変換され、回転鏡１４に入射される。Next, the operation will be explained with reference to FIGS. 2 and 3. In the speedometer configured in this way, the laser beam emitted from the laser diode 8 passes through the co-rotor lens A9.
The parallel light beam 1o is converted into a parallel light beam 1o, and is incident on the rotating mirror 14.
回転鏡１４が車の速度に連動して回転するモータ５によ
り時々刻々回転運動するように、モータ５と連結軸６に
より結ばれているため、入射時点での角度すなわち車速
に相当する角度で偏光板１３で反射され、そのとき、透
明体２には横波λの波長の平行光束１ｏとして入射され
る。透明体２に入射された平行光束１゜は、光束の範囲
内の光散乱体１により散乱され、全体として棒状に光り
輝く矢印方向の光束散乱光１１として、あたかも指針が
あるがのように計器板前面１９で認知できるのである。Since the rotating mirror 14 is connected to the motor 5 by a connecting shaft 6 so as to be rotated every moment by the motor 5, which rotates in conjunction with the speed of the car, the light is polarized at the angle at the time of incidence, that is, at the angle corresponding to the speed of the car. It is reflected by the plate 13, and at that time, it enters the transparent body 2 as a parallel light beam 1o having the wavelength of the transverse wave λ. The parallel light beam 1° incident on the transparent body 2 is scattered by the light scattering body 1 within the range of the light beam, and as a whole shines in a rod shape as a light beam scattered light 11 in the direction of the arrow, it appears on the instrument panel as if there were a pointer. It can be recognized from the front 19.
その際、前述の如＜ＴｉＯ２等の光の散乱体１の粒子の
直径を３μｍ１使用するレーザ光線の波長をλｎｍとし
、粒子の直径ａｕｍを波長λｎｍに比べて２×１０４以
下の微粒子であるａ（λとした条件のもとでは、散乱さ
れている光エネルギは、波長の４乗に逆比例し、短波長
はど強く散乱される、第２図に示すようなレーリー散乱
（Ｒａｙｌｅｉｇｈ Ｓｃａｔｔｅｒｉｎｇ）となる
。At that time, as described above, the diameter of the particles of the light scattering material 1 such as TiO2 is 3 μm1, the wavelength of the laser beam used is λnm, and the particle diameter aum is 2×104 or less fine particles compared to the wavelength λnm. (Under the condition of λ, the scattered light energy is inversely proportional to the fourth power of the wavelength, and short wavelengths are scattered more strongly than Rayleigh scattering as shown in Figure 2.) Become.
即ち、第２図において、（ａ）に示すように偏光のない
（ランダムな偏向方向を有する）標準波が散乱体１に衝
突すると散乱光は球状に全面反射するが、（ｂ）に示す
ように偏光方向がそろった光が散乱体１に衝突すると散
乱光は断面８の字状で偏光面（表面１９と平行な面）内
に幅Ｂを持ち、矢印方向に直径りを持つドーナツ形状（
０図参照）のようになる。直径Ｄ〉幅Ｂである。従って
、（ｄ）図に示すようにパネル状透明体２の側面に偏向
方向がそろった光が投入されると散乱体１に衝突してで
きる散乱波は透明体前面１９に直角な方向には直径りの
ものとして散乱するが、それと直角な方向には広がらな
いものとなる。That is, in Fig. 2, when a standard wave without polarization (having a random polarization direction) collides with the scatterer 1 as shown in (a), the scattered light is totally reflected in a spherical shape, but as shown in (b), When light with the same polarization direction collides with the scatterer 1, the scattered light has a figure-eight cross section, a width B in the polarization plane (plane parallel to the surface 19), and a donut shape with a diameter in the direction of the arrow.
(See Figure 0). Diameter D>width B. Therefore, as shown in figure (d), when light with the same polarization direction is incident on the side surface of the panel-shaped transparent body 2, the scattered waves generated by colliding with the scatterer 1 will not be reflected in the direction perpendicular to the front surface 19 of the transparent body. It is scattered as a diameter, but it does not spread in the direction perpendicular to it.
かくして第３図に示すように、入射光の偏光方向が透明
体２のＸ軸の方向と同方向の波長である横偏光波２１が
透明体２に照射されると、入射光の進行方向２３（Ｚ軸
方向）の光の散乱体１と衝突し、その周囲にｙ軸押ち計
器板面前１９の面に向く方向の８の字状に強く輝き全体
としてやや偏平楕円状の散乱光模様２４が生ずる。この
散乱模様２４は偏光波の進行方向の横方向には拡がらな
いものであるため、計器板前面１９に棒状の光束の光束
散乱１１として明確に認知できるものとなるものである
。Thus, as shown in FIG. 3, when the transparent body 2 is irradiated with a horizontally polarized light wave 21 whose polarization direction is the same wavelength as the X-axis direction of the transparent body 2, the traveling direction 23 of the incident light is irradiated onto the transparent body 2. The light collides with the light scatterer 1 (in the Z-axis direction), and a scattered light pattern 24 that shines strongly in the shape of a figure 8 in the direction facing the front 19 of the Y-axis instrument panel is generated around it, with a slightly oblate elliptical shape as a whole. occurs. Since this scattering pattern 24 does not spread in the lateral direction of the polarized wave traveling direction, it can be clearly recognized as a bar-shaped light flux scattering 11 on the front surface of the instrument panel 19.
第４図には、他の実施例を示す。FIG. 4 shows another embodiment.
この実施例の構成を説明すると、車両の速度に応じて回
転するモータ５とこれと連結軸６で結ばれ回転運動する
偏光面保存光ファイババンドル１５が装着された回転板
１６、コリメータレンズＡ９、レーザダイオード８、透
明体２の側面に設けられた溝１８の内に収納されている
コリメータレンズＢ１７および透明体２から構成されて
いる。To explain the configuration of this embodiment, a motor 5 that rotates according to the speed of the vehicle, a rotary plate 16 connected to the motor 5 by a connecting shaft 6 and equipped with a polarization preserving optical fiber bundle 15 that rotates, a collimator lens A9, It is composed of a laser diode 8, a collimator lens B17 housed in a groove 18 provided on the side surface of the transparent body 2, and the transparent body 2.
散乱体１の直径及び入射光波長との関係及び入射光の偏
光方向は前実施例と同じである。この実施例では光フア
イババンドル１５が透明体２の溝１８内に入っているの
で光の洩れが少なく光の結合率を向上させることができ
る効果がある他、前実施例と同様の作用効果を奏する。The relationship between the diameter of the scatterer 1 and the wavelength of the incident light and the polarization direction of the incident light are the same as in the previous embodiment. In this embodiment, since the optical fiber bundle 15 is placed in the groove 18 of the transparent body 2, the light leakage is reduced and the light coupling rate can be improved, and the same effects as in the previous embodiment are achieved. play.
［発明の効果］
以上、説明してきたように、この発明によれば、その構
成を車両等に積載される無指針式アナログメータ表示装
置において、パネル状の透明体に封入される多数の光の
散乱体としての微小粒体の粒子直径を、入射光波長より
十分に短かい長さに選定し、かつ、前記入射光が前記透
明体の側面がら入射される散乱手段と、前記散乱手段へ
の入射光が透明体の表面に平行な偏光方向を持つ光線と
して入射される偏光手段を有する構成としたため、指針
表示が明確になり、従来の無指針式アナログメータ表示
装置に見られた二次以上の散乱に起因する指針部相当の
光束散乱光の不鮮明さや夜間などの環境での計器のパネ
ル全面が薄明るく輝くときの表示数値の読み取りにくさ
、また、全体的な表示品質の低下を防止することができ
るという効果が得られる。[Effects of the Invention] As described above, according to the present invention, the configuration of a pointerless analog meter display device mounted on a vehicle etc. is such that a large number of lights enclosed in a panel-shaped transparent body can be used. The particle diameter of the microparticles as a scatterer is selected to be sufficiently shorter than the wavelength of the incident light, and the incident light is incident on a side surface of the transparent body, and a scattering means is provided. Since the structure has a polarizing means in which the incident light is incident as a light beam with a polarization direction parallel to the surface of the transparent body, the pointer display becomes clearer, and the second order or higher order seen in conventional pointerless analog meter display devices is used. Prevents the blurring of the scattered light equivalent to the pointer section due to scattering of light, the difficulty in reading displayed values when the entire surface of the instrument panel shines dimly brightly in environments such as nighttime, and the deterioration of the overall display quality. You can get the effect that you can.
第１図は、本発明による無指針式アナログメータ表示装
置の一実施例の基本構成斜視図、第２図は、本発明によ
るレーり散乱の原理説明図、第３図は第１図の作用を示
す散乱光模様説明図、第４図は、本発明による他の実施
例の構成斜視図、第５図は、従来の無指針式アナログメ
ータ表示装置の一例である速度計の正面図、第６図は、
従来の無指針式アナログメータ表示装置の一例で、指針
変換部の基本構成斜視図である。
１・・・散乱体 ２・・・透明体３・・・文字盤
４・・・指針変換部５・・・モータ ６
・・・連結軸７・・・回転鏡 ８・・・レーザダ
イオード９・・・コリメータレンズＡ
１０・・・平行光束 １２・・・二次散乱光１３・
・・偏光板
１４・・・偏光板の付設された回転鏡
１５・・・偏光面保存光ファイバFIG. 1 is a perspective view of the basic configuration of an embodiment of a pointer-less analog meter display device according to the present invention, FIG. 2 is a diagram illustrating the principle of Ray scattering according to the present invention, and FIG. 3 is the effect of FIG. 1. 4 is a perspective view of the configuration of another embodiment of the present invention, and FIG. 5 is a front view of a speedometer, which is an example of a conventional pointerless analog meter display device. Figure 6 is
FIG. 2 is a perspective view of the basic configuration of a pointer converter, which is an example of a conventional pointerless type analog meter display device. 1...Scatterer 2...Transparent body 3...Dial 4...Pointer converter 5...Motor 6
...Connection shaft 7...Rotating mirror 8...Laser diode 9...Collimator lens A 10...Parallel light flux 12...Secondary scattered light 13.
...Polarizing plate 14...Rotating mirror 15 attached with a polarizing plate...Polarization plane preserving optical fiber
Claims (1)
装置において、パネル状の透明体に封入される多数の光
の散乱体としての微小粒体の粒子直径を、入射光波長よ
り十分に短かい長さに選定し、かつ、前記入射光が前記
透明体の側面から入射される散乱手段と前記散乱手段へ
の入射光が透明体の表面に平行な偏光方向を持つ光線と
して入射される偏光手段を有することを特徴とする車両
用表示装置。(1) In pointer-less analog meter display devices installed on vehicles, etc., the particle diameter of the many microscopic particles that act as light scatterers enclosed in a panel-shaped transparent body is set to be sufficiently shorter than the wavelength of the incident light. a scattering means for making the incident light enter from a side surface of the transparent body; and polarization for making the incident light incident on the scattering means as a light beam having a polarization direction parallel to the surface of the transparent body. A display device for a vehicle, characterized in that it has a means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23461389A JPH0399295A (en) | 1989-09-12 | 1989-09-12 | Indicating device for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23461389A JPH0399295A (en) | 1989-09-12 | 1989-09-12 | Indicating device for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0399295A true JPH0399295A (en) | 1991-04-24 |
Family
ID=16973790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23461389A Pending JPH0399295A (en) | 1989-09-12 | 1989-09-12 | Indicating device for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0399295A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008051342A (en) * | 2007-10-29 | 2008-03-06 | Smc Corp | Pipe coupling |
| JP2010071907A (en) * | 2008-09-22 | 2010-04-02 | Nippon Seiki Co Ltd | Display device for vehicle |
-
1989
- 1989-09-12 JP JP23461389A patent/JPH0399295A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008051342A (en) * | 2007-10-29 | 2008-03-06 | Smc Corp | Pipe coupling |
| JP2010071907A (en) * | 2008-09-22 | 2010-04-02 | Nippon Seiki Co Ltd | Display device for vehicle |
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