JPS5889430A - Wiper and illuminator control - Google Patents
Wiper and illuminator controlInfo
- Publication number
- JPS5889430A JPS5889430A JP56188537A JP18853781A JPS5889430A JP S5889430 A JPS5889430 A JP S5889430A JP 56188537 A JP56188537 A JP 56188537A JP 18853781 A JP18853781 A JP 18853781A JP S5889430 A JPS5889430 A JP S5889430A
- Authority
- JP
- Japan
- Prior art keywords
- light
- circuit
- signal
- wiper
- lights
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
- B60Q1/1415—Dimming circuits
- B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/30—Indexing codes relating to the vehicle environment
- B60Q2300/31—Atmospheric conditions
- B60Q2300/314—Ambient light
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
Description
【発明の詳細な説明】
動制御と共にライト類の自動制御とを同一センサを用い
て行う制御装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control device that performs dynamic control and automatic control of lights using the same sensor.
本発明者の一人は発光素子と受光素子との特別が配置と
周波数信号を用いることにより、受光素子に液滴の量に
応じた振幅変調信号が現われることを発見し、本発明者
らは自動車における補機類の自動制御に役立てるべく開
発をすすめている。One of the inventors discovered that by using a special arrangement of the light-emitting element and the light-receiving element and using a frequency signal, an amplitude modulation signal corresponding to the amount of droplets appears on the light-receiving element. We are proceeding with the development of this technology to help automatically control auxiliary equipment in the industry.
本発明は上記受光素子に背景照度に応じたレベル信号が
得られることに着目して、ワイパの自動制御に加え、さ
らにライト類のそれをも同一センサを兼用して行うシス
テムを提供するに至ったものである。The present invention focuses on the fact that a level signal corresponding to the background illuminance can be obtained from the light receiving element, and provides a system that not only automatically controls wipers but also controls lights using the same sensor. It is something that
従って本発明の目的は、ワイパおよび照明系の正確な自
動制御を可能とし、かつその構成を実施容易にまとめる
ことである。SUMMARY OF THE INVENTION It is therefore an object of the present invention to enable accurate automatic control of the wiper and illumination system and to provide an arrangement that is easy to implement.
本発明の要点を第１，２図を参照して説明すると、発光
素子と受光素子はガラス（２）の液滴があたる面と反対
の面に１設し、発光素子からの光が透明板内で少々くと
も１回反射して受光素子に到達するように位置決めされ
ている。To explain the gist of the present invention with reference to FIGS. 1 and 2, a light emitting element and a light receiving element are installed on the opposite side of the glass (2) to the surface where the droplets hit, and the light from the light emitting element is transmitted to the transparent plate. The light is positioned so that it is reflected at least once within the interior and reaches the light receiving element.
雨滴がガラス（２）に付着し、その量が増してくると、
検波器（１５）の出力に現われる振幅変調信号の振幅が
大きくなり、比較器（１６）において定めるスレッショ
ルドを越えると、ワンショット回路（１７）の出力でワ
イパモータ（１９）が起動されワイパプレード（１９Ｓ
、Ｉム）を払拭させる。As raindrops adhere to the glass (2) and the amount increases,
When the amplitude of the amplitude modulation signal appearing at the output of the detector (15) increases and exceeds the threshold determined by the comparator (16), the wiper motor (19) is activated by the output of the one-shot circuit (17) and the wiper blade (19S) is activated.
,Im).
また背景照度が低下した場合、その信号のレベルが小さ
く々す、比較器（２０）において定めるスレッショルド
レベルをＭ、１．！：、スイッチ回路（２１）の動作で
ライト類を点灯させる。Further, when the background illuminance decreases, the level of the signal becomes small.The threshold level determined in the comparator (20) is set to M, 1. ! : The lights are turned on by the operation of the switch circuit (21).
本発明の１つの実施態様によると、２つの比較器を用い
異なるスレッショルドレベルを設定することにより、背
景開度に応じて、ライト類を車幅灯等および前照灯等と
に別け、車幅灯等のみ、および車幅灯等と前照灯等の２
段階の制御を行うことができる。According to one embodiment of the present invention, by setting different threshold levels using two comparators, lights are divided into vehicle width lights, etc. and headlights, etc. according to the background opening degree, and the vehicle width 2 types of lights, etc., and side lights, etc. and headlights, etc.
Stage control can be performed.
さらにある実施態様では、比較器のスレッショルドレベ
ルを任意に設定できるようにすることにより、運転者の
好みに応じた照度でのライト類の制御を可能とする。Furthermore, in some embodiments, the threshold level of the comparator can be set arbitrarily, thereby making it possible to control the lights at an illuminance according to the driver's preference.
第１図は本発明装置の発光素子と受光素子の取付けを示
した一実施例である。一部を図示した自動車のフロント
ガラス（２）に、発光素子（１）からの光を多重反射に
よって受光素子（５）が受光できる角度（θ）でガラス
（２）に入射できる様に、発光素子（１）はガラス（２
）と同程度の屈折率をもつ物質からなる取付素子（８）
と一体化されガラス（２）と同様な屈折率をもつ接着剤
によってガラ、ｘ、（２）に装着される。発光素子（１
）と同様に、受光素子（５）もガラス（２）と同程度の
屈折率をもつ取付素子（４）ならびに接着剤によってガ
ラス（２）Ｋ装着される。なお、発光素子（１）は実際
にはある程度の広がシをもった光束を生じるので画素子
の間隔はある程度連続的に変え得る。光学フィルタ（７
）は取付素子（８）に接着剤で接着されており、発光素
子から透明板を通らずに直接受光素子に届く光を減少さ
せて８／Ｎ比を向上させる役割をもつ。FIG. 1 is an embodiment showing how a light emitting element and a light receiving element of the apparatus of the present invention are attached. On the windshield (2) of a car, a portion of which is shown, light is emitted so that the light from the light emitting element (1) enters the glass (2) at an angle (θ) that allows the light to be received by the light receiving element (5) through multiple reflections. Element (1) is made of glass (2
) A mounting element (8) made of a material with a refractive index similar to that of
The glass, x, is attached to the glass (2) by means of an adhesive having a refractive index similar to that of the glass (2). Light emitting element (1
), the light receiving element (5) is also attached to the glass (2) K using a mounting element (4) having a refractive index similar to that of the glass (2) and an adhesive. Note that since the light emitting element (1) actually produces a luminous flux with a certain degree of spread, the interval between the pixel elements can be changed continuously to some extent. Optical filter (7
) is bonded to the mounting element (8) with adhesive, and has the role of reducing light that directly reaches the light receiving element from the light emitting element without passing through the transparent plate, thereby improving the 8/N ratio.
第２図は本発明装置の一実施例の全体構成を示すブロッ
ク図である。発振回路（ｌＯ）は一定周波数例えば５
Ｋ Ｈｚの矩形波を作る回路である。FIG. 2 is a block diagram showing the overall configuration of an embodiment of the device of the present invention. The oscillation circuit (lO) has a constant frequency, for example 5
This is a circuit that generates a KHz square wave.
発光回路（１１）は発振回路（ｌＯ）からの矩形波をＮ
ａ増幅し、ＬＥＤ等の発光素子（１）を駆動させる回路
である。受光回路（１２）は受光素子（２）の受光量に
比例した電気信号を作る回路で数〜数十”■（ｐ−ｐ）
の電圧を背景光の電圧成分に重畳して発生する。The light emitting circuit (11) generates N rectangular waves from the oscillation circuit (lO).
This is a circuit that amplifies and drives a light emitting element (1) such as an LED. The light receiving circuit (12) is a circuit that generates an electrical signal proportional to the amount of light received by the light receiving element (2), and has a length of several to several tens of inches (p-p).
is generated by superimposing the voltage on the voltage component of the background light.
受光素子（５）はガラス（２）と同様な屈折率をもつ物
質からなる取付素子（４）で、多重反射による発光素子
（１）からの光を受光できる角度してはいるがその割合
に応じて受光する。このために、電気的にフィルタ（１
８）を通して外乱光と発光素子（１）からの５ Ｋ Ｈ
ｚの光とを分離し、増幅器（１４）で増幅させる。The light-receiving element (5) is a mounting element (4) made of a material with a refractive index similar to that of glass (2), and is set at an angle that allows it to receive light from the light-emitting element (1) due to multiple reflections. It receives light accordingly. For this purpose, an electrical filter (1
8) through the disturbance light and 5 KH from the light emitting element (1)
The light of z is separated and amplified by an amplifier (14).
しかして雨滴がガラス（２）に付着する際に、発光素子
（１）からの光が多重反射をくり返して受光素子（５）
に受光される途中で、散乱や水と空気との屈折率に違い
よる光の漏れ等によって減少する。一方水滴の水膜での
反射等によって増加される。このため変化量は雨量に比
例し、また受光信号は雨量に応じて数十Ｈｚから数百Ｈ
ｚ程度の周波数で振幅変調される。However, when raindrops adhere to the glass (2), the light from the light emitting element (1) undergoes multiple reflections and is reflected back to the light receiving element (5).
During the process of receiving light, it decreases due to scattering and light leakage due to the difference in refractive index between water and air. On the other hand, it is increased by reflection of water droplets on a water film. Therefore, the amount of change is proportional to the amount of rainfall, and the received light signal varies from several tens of Hz to several hundred Hz depending on the amount of rainfall.
The amplitude is modulated at a frequency of about z.
この変調信号を検波器（１５）で検波し、比較器（１６
）に通す。比較器（１６）はあらかじめ設定された基準
電位（スレッショルドレベル）により、振幅変調の度合
すなわち雨滴量の判断も同時にすることができる。雨量
の度合は異なる基準電位を定めたコンパレータの個数分
だけの分解能になることは百うまでもない。This modulated signal is detected by a detector (15), and a comparator (16)
). The comparator (16) can also simultaneously determine the degree of amplitude modulation, that is, the amount of raindrops, based on a preset reference potential (threshold level). It goes without saying that the degree of rainfall has a resolution equal to the number of comparators that have different reference potentials.
ワイパモータ（１９）を駆動させるには、ある程度の時
間（約０．５秒）のオン信号が必要であるので、このた
め比較器（１６）からの雨滴信号をワンショット回路（
１７）に送り、ここで一定幅（約０．５秒）のバルクを
継電回路（１８）に送り、継電回路（１８）は出力段リ
レーを付勢させてワイパモータ（１９）を駆動させる。In order to drive the wiper motor (19), an ON signal for a certain amount of time (approximately 0.5 seconds) is required, so the raindrop signal from the comparator (16) is connected to the one-shot circuit (
17), and here the bulk of a certain width (approximately 0.5 seconds) is sent to the relay circuit (18), which energizes the output stage relay and drives the wiper motor (19). .
ワイパモータ（１９）は一旦回転を開始すると、ワイパ
ブレード（１９Ａ）が定位置に復帰するまで回転をつづ
ける。このとき発光素子（１）と受光素子（５）の臨設
されたガラス（２）の他面がワイパブレード（１９Ａ）
で払拭されると、雨滴は除去され振幅変調信号の振幅は
小さくなる。そしてやがて雨滴量が増してくると、ワイ
パモータ（１９）は再度起動される。以上のくり返し罠
より、ワイパブレード（１９Ａ）は雨滴量に応じた時間
間隔でガラス（１りを払拭する。もちろん、この作動は
夜間においても行なわれる。Once the wiper motor (19) starts rotating, it continues to rotate until the wiper blade (19A) returns to its home position. At this time, the other surface of the glass (2) where the light emitting element (1) and the light receiving element (5) are provided is the wiper blade (19A).
When the raindrops are wiped away, the raindrops are removed and the amplitude of the amplitude modulation signal becomes smaller. Then, as the amount of raindrops increases, the wiper motor (19) is started again. With the above-mentioned repeating trap, the wiper blade (19A) wipes the glass (19A) at time intervals depending on the amount of raindrops. Of course, this operation is also performed at night.
さて受光回路（１２）は前記のように背景光の電圧成分
も発生する。フィルタ（２０）ではこれを発光素子（１
）からの６ Ｋ Ｈｚの光と電気的に分離し背景光の電
圧成分のみを取り出す。取り出された背景光の電圧成分
は増幅器（２１）で増幅され、比較器（２２）で所定の
スレッショルドレベルとの比較によシ、背景光がある一
定しベル以。Now, the light receiving circuit (12) also generates the voltage component of the background light as described above. In the filter (20), this light emitting element (1
) and extract only the voltage component of the background light. The voltage component of the extracted background light is amplified by an amplifier (21) and compared with a predetermined threshold level by a comparator (22) to determine if the background light is below a certain level.
下の照度となったか否かが検知される。そして、スイッ
チ回路（２８）ではその信号を受けてライト類２４のス
イッチを閉じそれらを点灯させる。It is detected whether the illuminance has reached a lower level. Then, the switch circuit (28) receives the signal and closes the switches of the lights 24 to turn them on.
かくして、１つの受光素子（５）からの信号によシワイ
パーとライト類の自動制御が実現される。In this way, automatic control of the wiper and lights is realized by a signal from one light receiving element (5).
第８図に示す本発明の他の実施例では２つの比較器（２
２＆、２２ｂ）を設けている。それらは異なるスレッシ
ョルドレベルを持ち、比較器（ｌａ）はテール信号を出
し車幅灯、計器照明灯等の点灯。Another embodiment of the invention shown in FIG.
2&, 22b) are provided. They have different threshold levels, and the comparator (LA) outputs the tail signal to turn on the side lights, instrument lights, etc.
比較器（２２ｂ）ではライト信号を出し前照灯等の点灯
の判断を行う。これらの判断によってスイッチ回路（２
８ａ）、（２８ｂ）が各々□作動される。すなわちライ
ト類を車幅灯等（２４Ａ）および前照灯等（２４Ｂ）の
２つに別け、それらを照度に応じて制御するものである
。The comparator (22b) outputs a light signal and determines whether to turn on headlights or the like. Based on these judgments, the switch circuit (2
8a) and (28b) are each activated. That is, the lights are divided into two types, such as side lights (24A) and headlights (24B), and these are controlled according to the illuminance.
第４図に示す本発明の他の実施例では２つのボリューム
（ｇｓａ、２５ｂ）を設けている。これは、８つの比較
器（２２ａ、ｇｇｂ）のスレッショルドレベルを任意の
値に設定するものであり、これにより応答照度を調整す
ることができ、正確にライト類の制御を行う。In another embodiment of the invention shown in FIG. 4, two volumes (gsa, 25b) are provided. This is to set the threshold levels of the eight comparators (22a, ggb) to arbitrary values, thereby making it possible to adjust the response illuminance and accurately controlling the lights.
なお、本発明は車両以外の船舶、航空機等のワイパシス
テム及びライト類の自動化にも適用できる。また降雨警
報装置および外灯がどの各種照明装置にも適用できる。Note that the present invention can also be applied to automation of wiper systems and lights of ships, aircraft, etc. other than vehicles. Also, rain warning devices and outdoor lights can be applied to any variety of lighting devices.
以上のように本発明は、ワイパ制御のための雨滴を検出
するセンサが、同時に背景照度をも検出できることを利
用し、ライト類の制御を行うもので、雨滴センサの信号
の振幅変調を検出してワイパを作動し、背景レベルを検
出してライト類の制御を行なう兼用型の複合システムを
得ることができる効果がある。特に本発明のセンサは取
付性ならび雨滴検出精度に優れたもので、上記の複合シ
ヌテムの実現に際してその効果が大である。As described above, the present invention utilizes the fact that the sensor that detects raindrops for wiper control can also detect background illuminance at the same time to control lights, and detects the amplitude modulation of the signal of the raindrop sensor. This has the effect of providing a dual-purpose complex system that operates the wiper and controls the lights by detecting the background level. In particular, the sensor of the present invention has excellent installation ease and raindrop detection accuracy, and is highly effective in realizing the above-mentioned composite system.
第１図は本発明における発光素子と受光素子との配置例
を示す斜視図、第８図は本発明を適用した制御装置の一
実施例を示すブロック図、第３図は同装置の他の実施例
を示すブロック図、第４図は同装置のさらに他の実施例
を示すブロック図である。
ｌ・・・発光素子、２・・・ガラス板（ｉ！！明板）、
５・・・受光素子、１０・・・発振回路、１１・・・発
光回路。
１２・・・受光回路、１Ｂ・・・フィルタ、１４・・・
増幅回路、１５・・・検波回路、１６・・・比較回路、
１７・・・ワンショット回路、１Ｂ・・・継電回路、１
９・・・ワイパモータ、２０・・・フィルタ、２１・・
・増幅回路、２２・・・比較回路、ａｓ、ｇｓａ、２ａ
ｂ・・・スイッチ回路。
２４Ａ・・・車幅灯等、２４Ｂ・・・前照灯等、２５・
・・ボリューム。
代理人弁理士 間部 隆
（１１）FIG. 1 is a perspective view showing an example of the arrangement of a light emitting element and a light receiving element in the present invention, FIG. 8 is a block diagram showing an embodiment of a control device to which the present invention is applied, and FIG. 3 is a diagram showing another example of the control device according to the present invention. FIG. 4 is a block diagram showing still another embodiment of the same apparatus. l...Light emitting element, 2...Glass plate (i!! bright plate),
5... Light receiving element, 10... Oscillation circuit, 11... Light emitting circuit. 12... Light receiving circuit, 1B... Filter, 14...
Amplification circuit, 15...detection circuit, 16...comparison circuit,
17... One shot circuit, 1B... Relay circuit, 1
9... Wiper motor, 20... Filter, 21...
・Amplification circuit, 22... Comparison circuit, as, gsa, 2a
b...Switch circuit. 24A... Vehicle side lights, etc., 24B... Headlights, etc., 25.
··volume. Representative Patent Attorney Takashi Mabe (11)
Claims (1)
され１発光素子からの光が上記透光板内で反射して受光
素子に到着するように位置決めされており、上記透光板
の他方の面にワイパを備え、かつ上記発光素子に所定の
周波数信号を印加する発振回路と、上記受光素子に現わ
れる電気信号の振幅変調を検出する検波回路と、この検
波回路の出力信号が所定のスレッショルドレベルヲ越よ
ると前記ワイパを駆動する第１の制御回路を具備し、 さらに上記受光素子に現われる背景照度の電気信号が所
定スレッショルドレベルを越えると所定の照明灯を点灯
させる第２の制御回路を具備すること を特徴とするワイパ及び照明制御装置。 （２）前記第２の制御回路が背景照度の電気信号を異な
る２つのスレッショルドレベルと比較する比較回路と、
この比較回路の出力によシ車幅灯等および前照灯等を独
立に点灯させる信号を生じさせるスイッチ回路とからな
る特許請求の範囲第１項に記載のワイパ及び照明制御装
置。 （８）前記第２の制御回路が、背景照度の電気信号を異
なる２つのスレッショルドレベルで比較スる比較回路と
、この比較回路のスレッショルドレベルを任意に設定で
きるボリュームと、この比較回路の出力により車幅灯等
および前照灯等を独立に点灯させる信号を生じるスイッ
チ回路とからなる特許請求の範囲第１項に記載のワイパ
及び照明制御装置。[Scope of Claims] (1) A light-emitting element and a light-receiving element are provided on one side of a light-transmitting plate, and positioned so that light from one light-emitting element is reflected within the light-transmitting plate and reaches the light-receiving element. an oscillation circuit that is provided with a wiper on the other surface of the transparent plate and applies a predetermined frequency signal to the light emitting element, and a detection circuit that detects amplitude modulation of the electric signal appearing on the light receiving element; a first control circuit that drives the wiper when the output signal of the detection circuit exceeds a predetermined threshold level; A wiper and lighting control device characterized by comprising a second control circuit that turns on a light. (2) a comparison circuit in which the second control circuit compares the background illuminance electrical signal with two different threshold levels;
The wiper and lighting control device according to claim 1, comprising a switch circuit that generates a signal to independently turn on side lights, headlights, etc. based on the output of the comparison circuit. (8) The second control circuit includes a comparison circuit that compares the electrical signal of background illuminance at two different threshold levels, a volume that can arbitrarily set the threshold level of this comparison circuit, and an output of this comparison circuit. The wiper and lighting control device according to claim 1, comprising a switch circuit that generates a signal to independently turn on side lights, etc. and headlights, etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56188537A JPS5889430A (en) | 1981-11-25 | 1981-11-25 | Wiper and illuminator control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56188537A JPS5889430A (en) | 1981-11-25 | 1981-11-25 | Wiper and illuminator control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5889430A true JPS5889430A (en) | 1983-05-27 |
Family
ID=16225434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56188537A Pending JPS5889430A (en) | 1981-11-25 | 1981-11-25 | Wiper and illuminator control |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5889430A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0537471A1 (en) * | 1991-10-18 | 1993-04-21 | Mercedes-Benz Ag | Procedure for adapting the sensitivity of a rain sensor to ambient conditions and sensor system with a rain sensor |
| WO1997029926A1 (en) * | 1996-02-13 | 1997-08-21 | Marquardt Gmbh | Optic sensor |
| WO1999047396A1 (en) * | 1998-03-17 | 1999-09-23 | Robert Bosch Gmbh | Optical sensor |
| FR2791435A1 (en) * | 1999-03-26 | 2000-09-29 | Peugeot Citroen Automobiles Sa | Determining humidity on vehicle windscreen and ambient lighting level by locating humidity emitter, humidity receiver and ambient lighting detector in one box with a common optical unit |
| WO2001005626A1 (en) * | 1999-07-17 | 2001-01-25 | Robert Bosch Gmbh | Light-sensitive sensor unit, especially for automatic switching of lighting devices |
| EP0947403A3 (en) * | 1998-04-03 | 2001-08-22 | Nippon Sheet Glass Co., Ltd. | Water detection sensor having signal transmission function |
| JP2004506569A (en) * | 2000-08-24 | 2004-03-04 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Automatic control method of lighting device and automatic control device of lighting device |
| KR100427414B1 (en) * | 2001-11-14 | 2004-04-14 | 기아자동차주식회사 | Apparatus and method for warnning decrease of headlamp luminous intensity |
| EP1424252A2 (en) * | 1998-03-17 | 2004-06-02 | Robert Bosch Gmbh | Optical sensor |
| JP2004531418A (en) * | 2000-07-11 | 2004-10-14 | レオポルト・コスタール・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング・ウント・コンパニー・コマンデイトゲゼルシヤフト | Apparatus and method for automatically adapting an optical sensor device to a windshield |
| FR2891430A1 (en) * | 2005-09-29 | 2007-03-30 | Valeo Vision Sa | Lighting and/or signaling device e.g. side marker light, for motor vehicle, has six diodes of which three diodes emit detection light beam reflected by obstacle and other three diodes detect reflected light beam |
-
1981
- 1981-11-25 JP JP56188537A patent/JPS5889430A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0537471A1 (en) * | 1991-10-18 | 1993-04-21 | Mercedes-Benz Ag | Procedure for adapting the sensitivity of a rain sensor to ambient conditions and sensor system with a rain sensor |
| WO1997029926A1 (en) * | 1996-02-13 | 1997-08-21 | Marquardt Gmbh | Optic sensor |
| EP1424252A2 (en) * | 1998-03-17 | 2004-06-02 | Robert Bosch Gmbh | Optical sensor |
| JP2002500769A (en) * | 1998-03-17 | 2002-01-08 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Light sensor |
| WO1999047396A1 (en) * | 1998-03-17 | 1999-09-23 | Robert Bosch Gmbh | Optical sensor |
| EP1424252A3 (en) * | 1998-03-17 | 2004-07-14 | Robert Bosch Gmbh | Optical sensor |
| EP0947403A3 (en) * | 1998-04-03 | 2001-08-22 | Nippon Sheet Glass Co., Ltd. | Water detection sensor having signal transmission function |
| FR2791435A1 (en) * | 1999-03-26 | 2000-09-29 | Peugeot Citroen Automobiles Sa | Determining humidity on vehicle windscreen and ambient lighting level by locating humidity emitter, humidity receiver and ambient lighting detector in one box with a common optical unit |
| WO2001005626A1 (en) * | 1999-07-17 | 2001-01-25 | Robert Bosch Gmbh | Light-sensitive sensor unit, especially for automatic switching of lighting devices |
| US6831288B1 (en) | 1999-07-17 | 2004-12-14 | Robert Bosch Gmbh | Light-sensitive sensor unit, especially for automatic switching of illumination equipment |
| JP2004531418A (en) * | 2000-07-11 | 2004-10-14 | レオポルト・コスタール・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング・ウント・コンパニー・コマンデイトゲゼルシヤフト | Apparatus and method for automatically adapting an optical sensor device to a windshield |
| JP2004506569A (en) * | 2000-08-24 | 2004-03-04 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Automatic control method of lighting device and automatic control device of lighting device |
| KR100427414B1 (en) * | 2001-11-14 | 2004-04-14 | 기아자동차주식회사 | Apparatus and method for warnning decrease of headlamp luminous intensity |
| FR2891430A1 (en) * | 2005-09-29 | 2007-03-30 | Valeo Vision Sa | Lighting and/or signaling device e.g. side marker light, for motor vehicle, has six diodes of which three diodes emit detection light beam reflected by obstacle and other three diodes detect reflected light beam |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2897142B2 (en) | Windscreen wiper control with rain detector | |
| US5703568A (en) | Multi function light sensor for vehicle | |
| US6376824B1 (en) | Optical sensor | |
| JPH08512131A (en) | Device for measuring or identifying changes in reflective elements | |
| JP3691488B2 (en) | Adherent detection device and control device using the same | |
| JPS5889430A (en) | Wiper and illuminator control | |
| JPH10507428A (en) | Sensor for visibility detection and fogging detection by rain | |
| JPH05193451A (en) | Method and equipment for controlling wind wiper motor | |
| WO2002021107A1 (en) | Deposit detector and controller using the detector | |
| JP2004501025A (en) | Automatic control device for cleaning surfaces of plates with different contamination states and control method thereof | |
| KR0181470B1 (en) | Method and apparatus for sensing moisture on windshield and automatic control wiping method and apparatus | |
| JP2001330559A (en) | Foreign matter detecting device and automatic wiper control device using it | |
| JPS59106348A (en) | Automatic wiper control device | |
| JPH11295214A (en) | Sensor for detecting waterdrop and quantity of light | |
| JPS60174931A (en) | Raindrop detector | |
| JPS61284646A (en) | Waterdrop detecting device for windshield | |
| JPS60216246A (en) | Water drip detector | |
| JPS5840626A (en) | Liquid-drop responding device | |
| JP2579554Y2 (en) | Inter-vehicle distance measuring device | |
| JPH1096791A (en) | Raindrop detecting device | |
| JPS5961752A (en) | Raindrop response apparatus | |
| JPS6333645A (en) | Optical liquid detector | |
| JPS61284645A (en) | Waterdrop detecting device for windshield | |
| JPH10311786A (en) | Water drop detector and wiper system | |
| JP2002188994A (en) | Deposit detector, and controller using the same |