JPH03205703A - Automotive headlamp device - Google Patents
Automotive headlamp deviceInfo
- Publication number
- JPH03205703A JPH03205703A JP1309378A JP30937889A JPH03205703A JP H03205703 A JPH03205703 A JP H03205703A JP 1309378 A JP1309378 A JP 1309378A JP 30937889 A JP30937889 A JP 30937889A JP H03205703 A JPH03205703 A JP H03205703A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- headlamp
- shutter
- light distribution
- light
- 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
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 46
- 239000011159 matrix material Substances 0.000 claims description 3
- 208000002173 dizziness Diseases 0.000 abstract 2
- 239000000758 substrate Substances 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 5
- 238000002834 transmittance Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 210000002858 crystal cell Anatomy 0.000 description 3
- 230000004313 glare Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000013626 chemical specie Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003411 electrode reaction Methods 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
- F21S41/64—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices
- F21S41/645—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices by electro-optic means, e.g. liquid crystal or electrochromic devices
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はヘソドランブの調光機能手段を有する自動車用
ヘッドランプ装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a headlamp device for an automobile having a dimming function means of a hesode lamp.
従来、この鵠の自動車用ヘッドランプ装置としては、例
えば実開昭６３−１２９９０３号公報に開示されている
自動車用ランプ力パーが知られている。Conventionally, as a headlamp device for an automobile of this type, for example, an automobile lamp lamp device disclosed in Japanese Utility Model Application Publication No. 129903/1983 is known.
この自動車用ランプ力バーは、第７図に示すように自動
車３１のヘンドランプ３２を収容するヘッドランプ反射
＊３３の前部でラング力バー３４の内側に通電によう着
色，消色可能な着色度可変透明素子（エレクトロクロミ
ンク素子）３５を配設して構成されている。As shown in FIG. 7, this automotive lamp power bar has a coloring degree that can be colored and erased by applying electricity to the inside of the rung power bar 34 at the front of the headlamp reflector *33 that accommodates the hand lamp 32 of an automobile 31. It is configured by disposing a variable transparent element (electrochromic element) 35.
しかしながら、ヘンドランプの調光手段としてエレクト
ロクロミツク素子３５を用いると、次に説明するような
問題があった。すなわち、０）通常、バッシング時など
で１秒以下の応答速度が要求されるが、注入された電荷
量に反応が依存するため、応答速度が数秒と遅くなる。However, when the electrochromic element 35 is used as a dimming means for a hend lamp, there are problems as described below. That is, 0) Normally, a response speed of 1 second or less is required during bashing, etc., but since the reaction depends on the amount of injected charge, the response speed becomes slow to several seconds.
（口）眩惑訪止のためにヘノドランプ非点灯時の透過率
はｌ］・さいほど良い。実用的には透過率３０％以下な
りば運転者に眩しさ金感じさせることはない。しかし、
着色化学種の濃度を１高くすることが困難なため、５０
優以下に下げることが極めて困難である。(Mouth) The transmittance when the Henodo lamp is not lit is very good to avoid dazzling eyes. Practically speaking, if the transmittance is 30% or less, the driver will not feel glare or glare. but,
Since it is difficult to increase the concentration of colored chemical species by 1,
It is extremely difficult to lower it to below excellent.
（ハ）電極反応を使用するたの、電解買中に水分を含ん
でいるここが必要である。このために６０℃以上の高温
度となると、水分の保持が困難となう、動作不能となる
。(c) Since electrode reactions are used, it is necessary to contain water during electrolysis. For this reason, when the temperature reaches a high temperature of 60° C. or higher, it becomes difficult to retain moisture and the device becomes inoperable.
このような課題を解決するために本発明による自動車用
ヘンドランプ装置は、ヘソドランプレンズの前方に配置
された透光性フードの内ｉｌｌＩｌこヘソドラ７ブの配
光パターンに対応して透光，非透光を制御するフィルム
状液晶シャソタを設けたものである。In order to solve such problems, the automotive hand lamp device according to the present invention has a transparent hood arranged in front of the hesodo lamp lens. It is equipped with a film-like liquid crystal display that controls light transmission.
本発明による他の自動車用ヘンドランブ装置は、透光性
フードの内側にＮＣＡＰ （Ｎｅｍａｔｉｃ （：：ｕ
ｒｖｋｌｉｎｅａｒ Ａｌｉｇｎｅｄ Ｐｈａｓｅ）
液晶調光ンヤソタを設けたものである。Another automotive hendrum device according to the present invention has NCAP (Nematic (::u
rvklinear Aligned Phase)
It is equipped with a liquid crystal dimming function.
本発明によるさら｝て他の自動１月ヘノドランプ装置は
、配光パターン形状が異なるンヤンタ１極を設けたもの
である。Yet another automatic henode lamp device according to the present invention is provided with one pole having a different light distribution pattern shape.
本発明による他の自動車用へンドランプ装置は、シャッ
タ電極をマ｝ ｌ）クス状に構成したものである。Another automotive hendlamp device according to the present invention has a shutter electrode configured in the shape of a square.
本発明にシいては、フィルム状液晶シャソタ，液晶調光
シャッタの光透過量を制御してフードの通過光量を制御
する。In the present invention, the amount of light passing through the hood is controlled by controlling the amount of light transmitted through the film-like liquid crystal shutter and the liquid crystal dimming shutter.
以下、図面を用いて本発明の実施例を詳細に説明する。 Embodiments of the present invention will be described in detail below with reference to the drawings.
第１図は本発明による自動車用ヘッドランプ装置の一実
施例を示す断面図である。同図に》いて、１は自動車の
車体、２はバンパー ３は透明なガラス材もしくは樹，
指材冫こより形戎された透光性フード、４はフード３の
内画に密着配置されたフィルム状液晶／ヤノタ、５Ｖｉ
フィルム状液晶シャッタ４の背面側に配董された嘴円状
ヘッドランプ、６ぱ投影レンズ、１は楕円反躬鏡、８は
ランプ、９ぱノケソトである。FIG. 1 is a sectional view showing an embodiment of an automobile headlamp device according to the present invention. In the same figure, 1 is the body of a car, 2 is a bumper, 3 is a transparent glass material or wood,
A translucent hood shaped from the finger material, 4 is a film-like liquid crystal/Yanota placed in close contact with the inner image of the hood 3, 5Vi
A circular beak-shaped headlamp, 6 a projection lens, 1 an elliptical mirror, 8 a lamp, and 9 a panograph are arranged on the back side of the film-like liquid crystal shutter 4.
第２図は第１図に示したフィルム状液晶シャッタ４の構
戒を示す図であシ、同図（．）は平面図、同図（ｂ）は
その断面図である。同図に釦いて、透光性フィルムから
なる前面基板１１と背面基板１２との対向面上には互い
（′Ｉｌ：独立したそれぞれ透明導電膜からなる上部シ
ャッタ電極１３ｕ，下部シャソタ電極１３ｄと共通電極
１４とが対向して被着形成されている。１た、これらの
シャッタ電極１３ｕ，１３ｄシよび共通電極１４がそれ
ぞれ形成された前面基板１１｝よび背面基板１２の対向
面上には例えばラビング処理を施して形成された液晶配
向［１５が配置されている。さらにこれらの前面基板１
１と背面基板１２との間は所定距離離間され、それらの
周辺部はスベーサを含むシール材１６によって封着され
て外囲器が形成され、この外囲器内には例えばＴＮ液晶
１１が封入されて液晶セル１８が構或されている。また
、この液晶セル１８の外向、つｉシ前向基板１１かよざ
背面基板１２の外亙には偏光軸もしくは光吸収軸金互い
に平行させた前臼偏光飯１３２よび背面偏光板２０がそ
れぞれ接着配賃されてフィルム状液晶／ヤノタが構成さ
れる。FIG. 2 is a diagram showing the structure of the film-like liquid crystal shutter 4 shown in FIG. 1, where (.) is a plan view and FIG. 2(b) is a sectional view thereof. In the same figure, on the opposing surfaces of the front substrate 11 and the rear substrate 12 made of a light-transmitting film, the upper shutter electrode 13u and the lower shutter electrode 13d each made of an independent transparent conductive film are formed. The shutter electrodes 13u, 13d and the common electrode 14 are formed on opposite surfaces of the front substrate 11 and the rear substrate 12, for example, by rubbing. Liquid crystal alignment [15] formed by processing is arranged.Furthermore, these front substrates 1
1 and the back substrate 12 are spaced apart by a predetermined distance, and their peripheral parts are sealed with a sealing material 16 including a spacer to form an envelope. For example, a TN liquid crystal 11 is sealed in the envelope. A liquid crystal cell 18 is constructed using the same. In addition, a front polarizing plate 132 and a rear polarizing plate 20, which are parallel to each other with polarizing axes or light absorption axes, are bonded to the outside of the liquid crystal cell 18, the front substrate 11, and the rear substrate 12, respectively. A film-like liquid crystal/Yanota is constructed.
このように構威された自動車用ヘッドランプ装置は、ラ
ンプ８を点灯させることにより、その発光は楕円反射鏡
γに，二９前方方向に反射され、その反射光は投影レン
ズ６により集束されてフィルム状液晶シゴンタ４に入射
される。ここでこの液晶シャッタ４では上部シャッタ電
極１３ｕ＞よび下部シャッタ電極１３ｄと共通電極１４
との間に所定の電圧を印加することにより、第２図（ｂ
）に示すように上部シャッタ１３０卦よび下部シャッタ
１３Ｄが開放、すなわち全開され、前述した液晶ンヤン
タ４に入射した集束光が透過されて第３図（−）に示す
ようにメインビームＭＢとして点灯されることになる。In the automobile headlamp device constructed in this way, when the lamp 8 is turned on, the emitted light is reflected in the forward direction by the elliptical reflector γ, and the reflected light is focused by the projection lens 6. The light enters a film-like liquid crystal display 4. Here, in this liquid crystal shutter 4, the upper shutter electrode 13u, the lower shutter electrode 13d and the common electrode 14
By applying a predetermined voltage between
), the upper shutter 130 and the lower shutter 13D are opened, that is, fully opened, and the focused light incident on the liquid crystal display 4 is transmitted and illuminated as the main beam MB as shown in FIG. 3(-). That will happen.
筐た、下部シャンク電極１３ｄと共通電極１４との間に
所定の電圧を印加することにより、第２図（ｂ）に示す
下部シャッタ１３０のみが開放され、前述した液晶７ヤ
ンタ４に入射した集束光は下部シャッタ１３Ｄのみに透
光され第３図（ｂ）に示すようにサプビームＳＢとして
点灯されることになる。By applying a predetermined voltage between the lower shank electrode 13d and the common electrode 14, only the lower shutter 130 shown in FIG. The light is transmitted only through the lower shutter 13D and is turned on as a sub beam SB as shown in FIG. 3(b).
このような購或によると、ヘッドランプレンズ６の前方
に設けられたフード３の内側にフィルム状液晶シャッタ
４を設け、配向パターンに合わせて透允，非透光を制御
するそれぞれ上部シャッタ１ ３ Ｕ 釦よび下部シャ
ッタ１３Ｄを形威したことにより、昼間にかいては、外
光がヘッドランプ反射鏡７によう反射され、対向車の運
転者への眩惑を防止することができる。！た、夜間に訃
いては、ヘッドランブ５の配光を電気的に変化させるこ
とができる。According to such a purchase, a film-like liquid crystal shutter 4 is provided inside a hood 3 provided in front of the headlamp lens 6, and upper shutters 1 and 3 are used to control transparent and non-transparent states according to the alignment pattern. By using the U button and the lower shutter 13D, external light is reflected by the headlamp reflector 7 during the daytime, thereby preventing the driver of an oncoming vehicle from being dazzled. ! Furthermore, if the vehicle is lit at night, the light distribution of the headlamp 5 can be electrically changed.
第４図は本発明による自動車用ヘッドランプ装置の他の
実施例を示す断面図でろｂ１前述の図と同一部分には同
一符号を付してある。同図にかいて、第１図と異なる点
は、フード３の内側にはＴＮ液晶１７を用いたフィルム
状液晶シャッタ４に代って内部にＮＣＡＰ液晶を封入し
たフィルム状液晶調光シャソタ４′が密着配置されてい
る。１た、この液晶調光シャッタ４′には、例えばＭ５
図に示すように前画基板１１の内面側に縦横方向にンヤ
ソタ電極１３゛目釦よびシャッタ電極１３＋ｚ ，・・
・，１３ｍｎがドントマトリクス状に配列形威されると
ともに黒色系の二色性染料を添加したＮＣＡＰ液晶１７
′が封入され、それぞれシャッタ電極１３１１１ シ
ャッタ電極１３Ｋ２，・・・ｌ３ｍｎと共通電極１４と
の間に選択的に所要の電圧を印加することで透光，非透
光を制御する多数個のシャソタが形成されてかり、第１
図に示した偏光板１９．２０を不要としている。FIG. 4 is a sectional view showing another embodiment of the automobile headlamp device according to the present invention, and the same parts as those in the previous figures are given the same reference numerals. The difference between this figure and FIG. 1 is that inside the hood 3 there is a film-type liquid crystal dimming shutter 4' that has an NCAP liquid crystal sealed therein instead of the film-type liquid crystal shutter 4 that uses a TN liquid crystal 17. are placed closely together. 1.For example, the liquid crystal dimming shutter 4' has an M5
As shown in the figure, on the inner surface of the front image board 11, there are a negative electrode 13' button and a shutter electrode 13+z, . . . in the vertical and horizontal directions.
・,13mn is arranged in a donmatrix pattern and a black dichroic dye is added to the NCAP liquid crystal 17.
' are sealed, and a large number of shutters are used to control light transmission and non-transmission by selectively applying a required voltage between the shutter electrodes 13111, 13K2, . . . l3mn and the common electrode 14, respectively. The first
The polarizing plates 19 and 20 shown in the figure are unnecessary.
このような構成にかいて、ＮＣＡＰ液晶１７′を封入し
た液晶調光シャッタ４′を用いたことにより、電界効果
素子のため、応答速度が約２０ｍｓｅｃ以下と極めて速
く、バッシング時などの高速応答の要求に対応でき、安
全性を向上させることができる。In this configuration, by using the liquid crystal dimming shutter 4' that encloses the NCAP liquid crystal 17', the response speed is extremely fast at about 20 msec or less because it is a field effect element, and it is suitable for high-speed response such as during bashing. It can meet demands and improve safety.
筐た、通常のＴＮ液晶シャッタと比べて偏光板を必要と
しないため、オン時の光透過率が高く、筐たオフ時の透
過率の制御が比較的容易であり、約２０％以下の低透過
率に設定することも可能となる。したがって対向車の運
転者への眩惑を防止することができる。さらにＮ Ｃ
Ａ Ｐ液晶は高温での動作可能温度は液晶の融点に強く
依存するために動作温度が−３０〜８５℃，保存温度が
−４０〜９５Ｃが可能であることから、酷寒および酷熱
地域に釦ける液晶調光シャッタ４′の使用が可能となる
。Compared to normal TN liquid crystal shutters, the housing does not require a polarizing plate, so the light transmittance is high when it is on, and it is relatively easy to control the transmittance when the housing is off. It is also possible to set the transmittance. Therefore, it is possible to prevent the driver of an oncoming vehicle from being dazzled. Furthermore, N.C.
Since the operating temperature of AP LCD strongly depends on the melting point of the liquid crystal, the operating temperature can be -30 to 85°C, and the storage temperature can be -40 to 95°C, making it suitable for extremely cold and extremely hot regions. It becomes possible to use the liquid crystal dimming shutter 4'.
また、シャッタを構威するシャッタ電極の構造によシシ
ャッタの一部のみを着色，消色することが比較的簡単に
できるので、本実施例では黒色系の二色性染料を添加す
ることによシ、ヘソドランプ５の消灯時には黒色系に着
色させて内部への光の侵入を防止することができるとと
もに点灯時には透明にしてランプ光を透過させることが
できる。In addition, it is relatively easy to color or decolor only a part of the shutter due to the structure of the shutter electrode that makes up the shutter, so in this example, by adding a black dichroic dye. When the hesod lamp 5 is turned off, it can be colored black to prevent light from entering the interior, and when it is turned on, it can be made transparent to allow lamp light to pass through.
壕た、前述した液晶調光シャッタ４′は、他の構造とし
て前面側基板卦よび背面側基板上にそれぞれストライプ
状電極を設け、それらを互いに直交させて対向配置させ
てドントマトリクス状を得る構成としても前述と同様の
効果が得られる。In addition, the above-mentioned liquid crystal dimming shutter 4' has a structure in which stripe-shaped electrodes are provided on the front side substrate and the back side substrate, respectively, and these are arranged facing each other at right angles to obtain a donto matrix shape. However, the same effect as described above can be obtained.
１た、このような構成によれば、フード３０内側にＮＣ
ＡＰ液晶１７′を封入したフィルム状液晶調光シャッタ
４′を設けるとともにこの液晶調光シャッタ４′に縦横
方向にシャッタ電極１３Ｉ１およびシャッタ電極１３目
，・・・．１３ｍｎをドントマトリソクス状に配列形成
したので、シャッタ電極１３目およびシャンク電極１３
ｌｚ，・・・，ｊ３ｍｎを個々に透光，非透光制御して
シャッタを開閉制御することによｂ１米国／欧州型配光
，メイン／サプ配光に対応できる配光パターンのみなら
ず、各種の配光パターンを形成できるので、運転状況に
応じてよシ快適で安全な夜間走行が可能となる。例えば
第６図（ａ）Ｋ示すように自動車Ｃの通常走行時の通常
照射範囲をＳとし、通常配光範囲の２〜３割広くなる超
ワイド配光ランブを用いた超ワイド照射範囲をＷとした
とき、カーブ走行において、右カーブでは、同図（ｂ）
に示すように前述したシャッタの端部を閉じておく使い
方をすれば右方向を重点的に照射できるヘッドランプ配
光が得られる。オた、高速走行時には同図（ｃ）に示す
ように超ワイド配光で運転することによシ、安全性を向
上させることができる。さらに各シャッタの開閉量を制
御、すなわちその印加電圧の大小によって調光を行なう
ことにより、各種運転状況に最適な配光パターンを得る
ことができる。1. According to such a configuration, an NC is installed inside the hood 30.
A film-like liquid crystal dimming shutter 4' enclosing an AP liquid crystal 17' is provided, and this liquid crystal dimming shutter 4' is provided with shutter electrodes 13I1 and shutter electrodes 13, . 13mm were arranged in a constant matrix pattern, so the 13th shutter electrode and the 13th shank electrode
By individually controlling light transmission and non-transmission of lz, ..., j3mn and controlling the opening and closing of the shutter, it is possible to create not only a light distribution pattern that can correspond to b1 US/European light distribution and main/sub light distribution, but also Since various light distribution patterns can be formed, it is possible to drive more comfortably and safely at night depending on the driving situation. For example, as shown in Fig. 6(a)K, the normal irradiation range during normal driving of the car C is S, and the ultra-wide irradiation range using an ultra-wide light distribution lamp that is 20 to 30% wider than the normal light distribution range is W. When traveling on a curve, on a right curve, the same figure (b)
As shown in Figure 2, by closing the end of the shutter as described above, it is possible to obtain a headlamp light distribution that focuses the light in the right direction. Additionally, when driving at high speeds, safety can be improved by driving with an ultra-wide light distribution as shown in FIG. 2(c). Furthermore, by controlling the amount of opening and closing of each shutter, that is, by controlling the light by adjusting the magnitude of the applied voltage, it is possible to obtain a light distribution pattern that is optimal for various operating conditions.
な釦、前述した実施例に釦いて、液晶調光シャッタ４′
にはドントマトリクス状の７ヤンタ構或を用いた場合に
ついて説明したが、前述した上，下部シャッタ構成を用
いても良く、１た、この液晶シャッタ４にＮＣＡＰ液晶
１７′を用いても良いことは言う筐でもない。button, the button in the above-mentioned embodiment, the liquid crystal dimming shutter 4'
Although the case where a donmatrix-like 7-yanta structure is used has been described, the above-mentioned upper and lower shutter structure may also be used, and the NCAP liquid crystal 17' may also be used for the liquid crystal shutter 4. It's not even a box.
以上説明したように本発明によれば、ヘンドラングの配
光を電気的に変化させて各種の運転状況に最適な配光パ
ターンが得られるとともに昼間の外光がヘッドランプ反
射鏡に反射されなくなう１対向車の運転者への眩惑を確
実に防止することができるので、安全性を向上させるこ
とができるという極めて優れた効果が得られる。As explained above, according to the present invention, it is possible to electrically change the light distribution of the hendrang to obtain the optimal light distribution pattern for various driving conditions, and also to prevent daytime external light from being reflected by the headlamp reflector. Second, since it is possible to reliably prevent the driver of an oncoming vehicle from being dazzled, an extremely excellent effect of improving safety can be obtained.
第１図は本発明による自動車用ヘンドランプ装置の一実
施例による構或を示す断面図、第２図は第１図のフィル
ム状液晶シャッタの構成を説明する図、第３図はヘッド
ライトビームの形状を示す平面図、第４図は本発明の他
の実施例を示す断面図、第５図は第４図のフィルム状液
晶調光シャッタの虜ｅ．を説明する図、第６図は自動車
のヘッドランプの配光パターンを説明する図、第７図は
従来の自動車用ヘッドランプ装置の構成を示す図である
。
１・・・・Ｊｉｌ、２・・・・バンパー ３●・・・透
光性フード、゜４・・・・フィルム状液晶シャッタ、４
′●●●●フィルム状液晶調光シャッタ、５●●●●ヘ
ンド２ング、６●●●●投影レンズ、７・・・・楕円反
射鏡、８・・●・ランプ、９・●●●ソケット、１１●
●●●前面基板、１２・・・・背面基板、１３ｕ・●・
・上部シャンク電極、１３［Ｊ●●●●上部シャッタ、
１３ｄ●●●●下部シャッタ電Ｌ １３Ｄ・●・・下
部シャッタ、１３１●●●●第１のシャッタ電’ｌ、１
３＊−●・●第２のシャッタ電極、１４●●●●共通電
極、１５ｅ・・・液晶配向膜、１６・・・・シール材、
１γ・− − − ＴＮ液晶、１ ７’− − − −
ＮＣＡＰ液晶、１８・・・・液晶セル、１９・・・・
前面偏光板、２０・・・・背面偏光板、ＭＢ・・・・メ
インビーム、ＳＢ＠●●●サブビーム、Ｃ●●●●自動
車。FIG. 1 is a cross-sectional view showing the structure of an embodiment of the automotive hand lamp device according to the present invention, FIG. 2 is a view explaining the structure of the film-like liquid crystal shutter of FIG. 1, and FIG. 4 is a sectional view showing another embodiment of the present invention, and FIG. 5 is a diagram showing the structure of the film-type liquid crystal dimming shutter of FIG. FIG. 6 is a diagram illustrating a light distribution pattern of an automobile headlamp, and FIG. 7 is a diagram illustrating the configuration of a conventional automobile headlamp device. 1...Jil, 2...Bumper 3●...Translucent hood, ゜4...Film-like liquid crystal shutter, 4
′●●●●Film-type liquid crystal dimming shutter, 5●●●●Hend 2 ring, 6●●●●Projection lens, 7...Elliptical reflector, 8...Lamp, 9●●●● Socket, 11●
●●●Front board, 12... Back board, 13u...
・Top shank electrode, 13[J●●●●Top shutter,
13d●●●●Lower shutter electric L 13D・●・Lower shutter, 131●●●●First shutter electric 'l, 1
3*-●・● second shutter electrode, 14●●●● common electrode, 15e... liquid crystal alignment film, 16... sealing material,
1γ・− − − TN liquid crystal, 1 7′− − − −
NCAP liquid crystal, 18...Liquid crystal cell, 19...
Front polarizing plate, 20... Rear polarizing plate, MB... Main beam, SB@●●● Sub beam, C●●●● Automobile.
Claims (4)
ードの内側にヘッドランプの配光パターンに対応して透
光、非透光を制御するフィルム状液晶シャッタを設けた
ことを特徴とする自動車用ヘッドランプ装置。(1) A film-like liquid crystal shutter is provided inside the light-transmitting hood placed in front of the headlamp lens to control whether or not light is transmitted in accordance with the light distribution pattern of the headlamp. Automobile headlamp device.
ードの内側にヘッドランプの配光パターンに対応して透
光、非透光を制御するフィルム状液晶調光シャッタを設
けたことを特徴とする自動車用ヘッドランプ装置。(2) Features a film-like liquid crystal dimming shutter that controls whether or not to transmit light in accordance with the light distribution pattern of the headlamp inside the translucent hood placed in front of the headlamp lens. A headlamp device for automobiles.
ことを特徴とする請求項１または請求項２記載の自動車
用ヘッドランプ装置。(3) The automobile headlamp device according to claim 1 or 2, further comprising shutter electrodes having different light distribution pattern shapes.
徴とする請求項１または請求項２記載の自動車用ヘッド
ランプ装置。(4) The automobile headlamp device according to claim 1 or 2, wherein the shutter electrodes are arranged in a matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1309378A JPH03205703A (en) | 1989-11-30 | 1989-11-30 | Automotive headlamp device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1309378A JPH03205703A (en) | 1989-11-30 | 1989-11-30 | Automotive headlamp device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03205703A true JPH03205703A (en) | 1991-09-09 |
Family
ID=17992284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1309378A Pending JPH03205703A (en) | 1989-11-30 | 1989-11-30 | Automotive headlamp device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03205703A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011243366A (en) * | 2010-05-17 | 2011-12-01 | Stanley Electric Co Ltd | Vehicular lighting fixture |
| JP2012069458A (en) * | 2010-09-27 | 2012-04-05 | Stanley Electric Co Ltd | Lighting fixture for vehicle |
| WO2018225653A1 (en) * | 2017-06-07 | 2018-12-13 | スタンレー電気株式会社 | Vehicular headlamp system |
-
1989
- 1989-11-30 JP JP1309378A patent/JPH03205703A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011243366A (en) * | 2010-05-17 | 2011-12-01 | Stanley Electric Co Ltd | Vehicular lighting fixture |
| JP2012069458A (en) * | 2010-09-27 | 2012-04-05 | Stanley Electric Co Ltd | Lighting fixture for vehicle |
| WO2018225653A1 (en) * | 2017-06-07 | 2018-12-13 | スタンレー電気株式会社 | Vehicular headlamp system |
| JP2018203130A (en) * | 2017-06-07 | 2018-12-27 | スタンレー電気株式会社 | Vehicular headlight system |
| US11110853B2 (en) | 2017-06-07 | 2021-09-07 | Stanley Electric Co., Ltd. | Vehicle headlight system |
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