DE2808260A1 - Variable reflection effect driving mirror - has adjustable filter in front of mirror, with photocells to adjust transmission and set relative intensity of reflected light - Google Patents
Variable reflection effect driving mirror - has adjustable filter in front of mirror, with photocells to adjust transmission and set relative intensity of reflected lightInfo
- Publication number
- DE2808260A1 DE2808260A1 DE19782808260 DE2808260A DE2808260A1 DE 2808260 A1 DE2808260 A1 DE 2808260A1 DE 19782808260 DE19782808260 DE 19782808260 DE 2808260 A DE2808260 A DE 2808260A DE 2808260 A1 DE2808260 A1 DE 2808260A1
- Authority
- DE
- Germany
- Prior art keywords
- mirror
- disc
- light
- amplifier
- photocell
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/02—Rear-view mirror arrangements
- B60R1/08—Rear-view mirror arrangements involving special optical features, e.g. avoiding blind spots, e.g. convex mirrors; Side-by-side associations of rear-view and other mirrors
- B60R1/083—Anti-glare mirrors, e.g. "day-night" mirrors
- B60R1/088—Anti-glare mirrors, e.g. "day-night" mirrors using a cell of electrically changeable optical characteristic, e.g. liquid-crystal or electrochromic mirrors
Abstract
Description
Spiegelvorrichtung mit veränderlichemMirror device with variable
Reflexionsvermögen Die Erfindung bezieht sich auf eine Spiegelvorrichtung mit veränderlichem Reflexionsvermögen, insbesondere zur Verwendung bei Fahrzeugen, mit einem Spiegel. Reflectivity The invention relates to a mirror device with variable reflectivity, especially for use in vehicles, with a mirror.
Da ein Spiegel den größten Teil der auftreffenden Lichtstrahlen reflektiert, werden insbesondere Fahrzeuglenker häufig durch Fahrzeugspiegel geblendet, die für die Beobachtung nach hinten ausgelegt sind und so das von hinten eintreffende Licht eines "Hiníermannes" oder der tief stehenden Sonne unmittelbar in die augen des Eahrzeuglenkers werfen. Um hier Abhil@e zu --r: gibt es beispielsweise ICückblickspiegel, (in- cu.rc etätigung eines Ilebels in Abblendstellunq gebracht werden können. Diese Maßnahme ist jedocn nnchteilig, weil durch die notwendige Bedienung von hand der Fahrzeuglenker oftmals in kritischen Fahrsituationen abgelenkt wird.Since a mirror reflects most of the incident light rays, In particular, vehicle drivers are often blinded by vehicle mirrors, which for the Observation are designed to the rear and so the light arriving from behind a "Hiníermannes" or the low-lying sun directly into the eyes of the Throw the vehicle operator. In order to remedy this situation --r: there is, for example, I rear view mirror, (incu.rc actuation of an Ilebel can be brought into dimming position. This The measure is disadvantageous, however, because the necessary manual operation of the Driver is often distracted in critical driving situations.
Ferner ist die Abblendung nur zwischen den durch die Materialeigenschaften der betreffenden spiegelnden Oberflächen festgelegten vierten möglich, wodurch keine individuell einstellbare Abblendwirkung erzielbar ist. Der Spiegel ist also meist zu hell oder zu dunkel.Furthermore, the glare is only between the properties of the material of the reflective surfaces in question specified fourth possible, whereby none individually adjustable glare effect can be achieved. So the mirror is mostly too light or too dark.
Es ist Aufgabe der vorliegenden Erfindung, eine Vorrichtung zu schaffen, die je nach Lichtverhältnissen der Umgebung und je nach Intensität des die Blendwirkung hervorrufenden Lichteinfalls eine individuelle Anpassung an die jeweiligen Bedürfnisse gestattet.It is the object of the present invention to create a device which depends on the lighting conditions of the environment and depending on the intensity of the glare effect incidence of light an individual adaptation to the respective needs allowed.
Erfindungsgemäß wird die Aufgabe dadurch gelöst, daß vor dem Spiegel eine Scheibe angeordnet ist, deren Lichtdurchlässigkeit elektrisch veränderbar ist.According to the invention the object is achieved in that in front of the mirror a disc is arranged, the light transmission of which is electrically variable.
Der Vorteil des Erfindungsgegenstandes gegenüber dem Bekannten liegt darin, daß zunächst eine stufenlose Einstellung des gewünschten Reflexionsvermögens der Spiegelvorrichtung je nach den individuellen oder momentanen Bedürfnissen möglich ist. Ferner kann eine automatische Veränderung des iseflexionsgrades der piegelvorrichtung erfolgen, der Fahrer wird hierdurch nicht mehr abgelenkt.The advantage of the subject of the invention over the known lies in that first a stepless adjustment of the desired reflectivity the mirror device possible depending on the individual or current needs is. Furthermore, an automatic change in the degree of flexion of the mirror device the driver is no longer distracted by this.
ur selesttätigen Anpassung des Reflexionsvermögens an die individuellen Bedürfnisse sieht die Erfindung gemäß einer Weiterbildung vor, daß die Scheibe ihren Steuerstrom/ihre Steuerspannung aus einem Verstärker in Abhängigkeit von einem lichtabhängigen, weiteren Steuerstrom erhält der von liner fotozelle an den verstärker geliefert wird, die vorn gleichen Lichteinfall wie die Scheibe beaufschlagt wird.ur self-adapting the reflectivity to the individual The invention provides for needs according to a development that the disc their Control current / its control voltage from an amplifier depending on a light-dependent, The liner photocell supplies the amplifier with additional control current that is exposed to the same incidence of light as the pane.
Zur Komnensation einer möglichen Langzeitveränderung der Lichtdurchlässigkeit der Scheibe ist nach einer weiteren Ausbildung der Erfindung vorgesehen, daß die Fotozelle - von der Seite des Lichteinfalls her gesehen -hinter der Scheibe angeordnet ist Zur automatischen Ein- und Ausschaltung der Vorrichtung ist gemäß einer vorteilhaften Ausgestaltung der Erfindung vorgesehen, daß mindes-tens e i n Elektrodenanschluß der Scheibe über einen Schalter auf den Verstärker schaltbar ist, wobei der Schalter in Abhängigkeit vom Steuerstrom einer weiteren Fotozelle bei vollem Lichteinfall offen ist und bei zunehmender Dämmerung schließt.To compensate for a possible long-term change in light transmission the disc is provided according to a further embodiment of the invention that the Photo cell - viewed from the side of the incidence of light - arranged behind the pane For automatic switching on and off of the device is according to an advantageous Embodiment of the invention provided that at least one electrode connection the disk can be switched to the amplifier via a switch, the switch depending on the control current of another photocell with full incidence of light is open and closes at dusk.
Zweckmäßige konstruktive Ausgestaltungen der Erfindung gehen aus den Unteransprüchen 5 bis 8 hervor. Zur besseren Anpassung der Vorrichtung an die sich ändernde Intensität des Tageslichtes ist nach einer weiteren Ausgestaltung der Erfindung vorgesehen, daß die zweite Fotozelle auf einen weiteren Verstärker wirkt, der seinerseits auf den Verstärker für die Scheibe 2 durch Veränderung von dessen Steilheit in Abhängigkeit vom Tageslicht einwirkt.Appropriate design features of the invention are based on the Subclaims 5 to 8 emerge. To better adapt the device to yourself changing intensity of daylight is according to a further embodiment of the invention provided that the second photocell acts on another amplifier, which in turn on the amplifier for the disk 2 by changing its steepness as a function of acts of daylight.
Die Erfindung wird an Ausführungsbeispielen mittels einer Zeichnung erläutert. Es zeigen Fig. 1 schematisch die erfindungsgemäße Vorrichtung, Fig. 2 schematisch die Vorrichtung mit automatischer Ein- und Ausschaltung sowie mit einer gegenüber dem Spiegel geneigten Scheibe.The invention is illustrated by exemplary embodiments by means of a drawing explained. 1 schematically shows the device according to the invention, FIG. 2 schematically the device with automatic on and off as well as with a disc inclined in relation to the mirror.
Vor einem Spiegel 1 (Fig. 1) ist eine Scheibe 2 angeordnet, deren Lichtdurchlässigkeit elektrisch veränderbar ist. Hierzu kann die Scheibe 2 als Feldeffekt-Gatter mit Polarisationsfiltern aufgebaut sein. Zwei gegeneinander gestellte Glasplatten sind auf deren Innenseite jeweils mit einer transparenten Leitschicht überzogen, die jeweils einen Elektrodenanschluß trägt. Zwischen den so gebildeten, durchsichtigen Wandungen, bestehend aus Glasplatte und transparenten Leitschichten, sind Flüssigkristalle eingeschlossen. Auf der dem Spiegel 1 abgekehrten Vorderseite der Scheibe 2 ist ein Polarisationsfilter vorgesehen, das vertikal orientiert ist; auf der Rückseite der Scheibe 2 befindet sich ein horizontales Polarisationsfilter. Das einfallende Licht wird von dem frontseitigen Polarisationsfilter vertikal polarisiert. Beim Durchlauf durch das Flüssigkristall-Material erfährt das Licht eine Drehung um 900 und kann deshalb das horizontale Polarisationsfilter an der Rückseite passieren. Durch den Spiegel 1 wird das Licht reflektiert und durch das horizontale Polarisationsfilter repolarisiert. Das Flüssigkristall-Material dreht die Schwingungsebene erneut um 900. Diese weitere Drehung gestattet dem Licht, durch das vordere, vertikale Polarisationsfilter zu treten. Beim Anlegen einer Spannung an die auf den Glasplatten aufgebrachten, transparenten Leit- schichten geht die 90°-Drehung der Moleküle verloren, weshalb einfallendes, vertikal polarisiertes Licht im Flüssigkristall-Material nicht gedreht und vom horizontalen Polarisationsfilter an der Rückseite absorbiert wird. Hierdurch verdunkelt sich die Scheibe 2 je nach Höhe der Spannung, die an die transparenten Leitschichten angelegt wird. Hierdurch wirkt die Scheibe 2 als Filter für den dahinterliegenden Spiegel 1. Der beschriebene Feldeffekt-Aufbau mit Polarisationsfiltern ist ebenfalls bereits bekannt.In front of a mirror 1 (Fig. 1), a disk 2 is arranged, whose Light transmission is electrically changeable. For this purpose, the disk 2 can be used as a field effect gate with Be built polarization filters. Two juxtaposed Glass plates are each with a transparent conductive layer on the inside coated, each of which carries an electrode connection. Between the so educated transparent walls, consisting of a glass plate and transparent conductive layers, liquid crystals are included. On the front facing away from mirror 1 the disc 2 is provided with a polarization filter which is oriented vertically; A horizontal polarization filter is located on the back of the pane 2. The incident light is polarized vertically by the polarization filter on the front. As the light passes through the liquid crystal material, it rotates around 900 and can therefore pass through the horizontal polarization filter on the back. The light is reflected through the mirror 1 and through the horizontal polarization filter repolarized. The liquid crystal material reverses the plane of vibration again 900. This further rotation allows the light to pass through the front, vertical polarizing filter to kick. When applying a voltage to the applied to the glass plates, transparent guiding layering is the 90 ° rotation of the molecules lost, which is why incident, vertically polarized light in the liquid crystal material not rotated and absorbed by the horizontal polarization filter on the back will. As a result, the disc 2 darkens depending on the level of tension that is applied the transparent conductive layers is applied. As a result, the disc 2 acts as a Filter for the mirror behind it 1. The field effect structure described with Polarization filters are also already known.
Die Erfindung besteht in der Anwendung der in ihrer Lichtdurchlässigkeit elektrisch veränderbaren Scheibe 2 in Verbindung mit dem Spiegel 1. Für diesen sind Rückflächenspiegel und Oberflächenspiegel gleichermaßen gut geeignet.The invention consists in the application of their transparency electrically changeable disc 2 in connection with the mirror 1. For this are Rear surface mirror and surface mirror are equally well suited.
Die Scheibe 2 (Fig. 1) ist mit Elektrodenanschlüssen 3 und 4 versehen, die zu den transparenten Leitschichten in der Scheibe 2 führen. Die Scheibe 2 verdunkelt sich mehr oder weniger je nach der elektrischen Spannung, die an die Elektrodenanschlüsse 3 und 4 angelegt wird. Hierzu kann man eine Fotozelle verwenden, die dem gleichen Lichteinfall 6 wie die Scheibe 2 ausgesetzt ist. Zur Eliminierung von Langzeitänderungen der Scheibe 2, etwa durch Temperaturänderung, Verschmutzung, Alterung etc. ordnet man die Fotozelle 7 (Fig. 1) zweckmäßigerweise so an, daß sie - vom Lichteinfall 6 aus gesehen - hinter der Scheibe 2 liegt. Eine etwa durch Verschmutzung hervorgerufene Schwächung des Lichteinfalls 6 wird dann von der Fotozelle 7 nur in entsprechender Abschwächung festgestellt. Der von der Fotozelle 7 gelieferte Steuerstrom wird dem Eingang eines Verstärkers 8 zugeleitet, dessen Ausgang 10 mit dem einen Elektrodenanschluß 4 der Scheibe 2 verbunden ist. Der andere Elektrodenanschluß 3 der Scheibe 2 liegt am Fußpunkt des Verstärkers 8.The disk 2 (Fig. 1) is provided with electrode connections 3 and 4, which lead to the transparent conductive layers in the pane 2. The disc 2 darkened more or less depending on the voltage applied to the electrode connections 3 and 4 is applied. For this you can use a photocell, which is the same Incidence of light 6 as the pane 2 is exposed. To eliminate long-term changes the disc 2, for example due to temperature change, contamination, aging, etc. assigns one expediently the photocell 7 (Fig. 1) so that she - seen from the incidence of light 6 - is located behind the pane 2. One due to pollution caused weakening of the incidence of light 6 is then from the photocell 7 only found in a corresponding attenuation. The one delivered by photocell 7 Control current is fed to the input of an amplifier 8, whose output 10 with one electrode terminal 4 of the disk 2 is connected. The other electrode connection 3 of the disk 2 lies at the base of the amplifier 8.
Ein an einem weiteren Eingang des Verstärkers 8 angeschlossener Einstellwiderstand 9 dient der Grundeinstellung der Lichtdurchlässigkeit der Scheibe 2.A setting resistor connected to a further input of the amplifier 8 9 is used for the basic setting of the light transmission of the pane 2.
Die Spiegelvorrichtung ist als kompakte Einheit, bestehend aus einem Halter 5, dem Spiegel 1 und der Scheibe 2 gemäß Fig. 1 aufgebaut. Die Fotozelle 7 kann durch den Halter 5 soweit hindurchgesteckt sein, daß der Lichteinfall 6 sie erreicht. Hierzu würde es auch genügen, die Fotozelle - anstatt sie bis zur Scheibe 2 zu führen - lediglich bis zur Rückseite des Spiegels 1 einzustecken; an dieser Stelle könnte die reflektierende Metallschicht des Spiegels ausgespart sein, der Spiegel würde also im Bereich der Fotozelle 7 lediglich als Glasscheibe wirken. Hierdurch wäre zusätzlich die Eliminierung der durch das Glasmaterial des Spiegels hervorgerufenen Lichtschwächung möglich.The mirror device is a compact unit consisting of a Holder 5, the mirror 1 and the disc 2 according to FIG. 1 constructed. The photocell 7 can be pushed through the holder 5 so far that the incidence of light 6 them achieved. For this it would also suffice to use the photocell instead of extending it to the window 2 to lead - just plug it in to the back of the mirror 1; at this The reflective metal layer of the mirror could be recessed The mirror would only act as a pane of glass in the area of the photocell 7. This would also eliminate the effects caused by the glass material of the mirror caused light attenuation possible.
Bei vollem Tageslicht wird es selten notwendig sein, die Lichtdurchlässigkeit der Scheibe 2 zu verändern.In full daylight it will seldom be necessary to reduce light transmission the disk 2 to change.
Hingegen ist es wichtig, bei fortschreitender Dämmerung oder bei Nacht die Lichtdurchlässigkeit der Scheibe 2 zu verändern. Zur automatischen Einschaltung des Regelkreises kann eine zweite Fotozelle 14 (Fig. 2) verwendet werden, die einen aus einer Stromquelle 13 gespeisten elektronischen Schalter 12 dazu veranlaßt, die Vorrichtung ein- bzw. bei vollem Lichteinfall 6 wieder auszuschalten. Anstatt der Verwendung des elektronischen Schalters 12 kann die zweite Foto zelle 14 auch auf einen weiteren Verstärker (in der Zeichnung nicht dargestellt) wirken, der seinerseits auf den Verstärker 8 einwirkt, etwa durch Veränderung von dessen Steilheit in Abhängigkeit des Tageslichtes. Die zweite Fotozelle 14 kann an beliebiger Stelle angeordnet sein, sie kann aber auch ebenso vom Halter 5 mit getragen werden.On the other hand, it is important when it is getting darker or at night to change the light transmission of the disc 2. For automatic activation of the control circuit, a second photocell 14 (Fig. 2) can be used, the one from a power source 13 fed electronic switch 12 causes the Switch the device on or switch it off again with full incidence of light 6. Instead of the Using the electronic switch 12, the second photo cell 14 can also be activated another amplifier (not shown in the drawing) act, which in turn acts on the amplifier 8, for example by changing its steepness as a function of of daylight. The second photocell 14 can be arranged at any point, however, it can also be carried by the holder 5 as well.
Das Flüssigkristall-Material in der Scheibe 2 wird in an sich bekannter Weise durch nematische Kristalle gebildet, wobei sich die Moleküle in paralleler Ausrichtung befinden. Es kann auch eine optische Keramik zur Anwendung kommen, deren Transparenz sich durch Anlegen einer elektrischen Spannung ändert.The liquid crystal material in the disc 2 is known per se Way formed by nematic crystals, the molecules being in parallel Alignment. An optical ceramic can also be used, whose Transparency changes when an electrical voltage is applied.
Wegen der Klarheit der Zeichnung sind die transparenten Leitschichten und die Polarisationsfilter an der Scheibe 2 sowie die Beschichtung des Spiegels l in der Zeichnung nicht dargestellt.Because of the clarity of the drawing, they are transparent Conductive layers and the polarization filter on the pane 2 and the coating of the mirror l not shown in the drawing.
Der Verstärker 8 wird aus einer Stromquelle 15 gespeist.The amplifier 8 is fed from a current source 15.
Bei der Anordnung gemäß Fig. 2 kann der gleiche Aufbau, bestehend aus Halter 5, Spiegel 1, Fotozelle 7 und Scheibe 2 verwendet werden. Abweichend hiervon kann man die Scheibe 2 aber auch so gegenüber dem Spiegel 1 neigen (Fig. 2), daß eine Blendung des Fahrers durch den Lichteinfall 6 auf Grund von an den Polarisationsfiltern bei verdunkelter Scheibe 2 auftretenden Reflexionen vermieden wird. Durch die Neigung der Scheibe 2 in dem erwähnten Umfang zeigt diese stärker nach unten zum dunklen Wageninneren, von wo ohnehin kein störendes Licht ausgeht.In the arrangement according to FIG. 2, the same structure can exist from holder 5, mirror 1, photocell 7 and disc 2 can be used. Different From this, however, the pane 2 can also be inclined in relation to the mirror 1 (Fig. 2) that the driver is dazzled by the incidence of light 6 due to the Polarization filters with darkened pane 2 avoided reflections will. Due to the inclination of the disk 2 to the extent mentioned, it shows more strongly down to the dark interior of the car, from where there is no disturbing light anyway.
Die Spiegelvorrichtung ist für Innenspiegel und für Außenspiegel gleichermaßen geeignet.The mirror device is for inside mirrors and for outside mirrors alike suitable.
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE19782808260 DE2808260A1 (en) | 1978-02-25 | 1978-02-25 | Variable reflection effect driving mirror - has adjustable filter in front of mirror, with photocells to adjust transmission and set relative intensity of reflected light |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782808260 DE2808260A1 (en) | 1978-02-25 | 1978-02-25 | Variable reflection effect driving mirror - has adjustable filter in front of mirror, with photocells to adjust transmission and set relative intensity of reflected light |
Publications (1)
Publication Number | Publication Date |
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DE2808260A1 true DE2808260A1 (en) | 1979-08-30 |
Family
ID=6032998
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19782808260 Withdrawn DE2808260A1 (en) | 1978-02-25 | 1978-02-25 | Variable reflection effect driving mirror - has adjustable filter in front of mirror, with photocells to adjust transmission and set relative intensity of reflected light |
Country Status (1)
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DE (1) | DE2808260A1 (en) |
Cited By (51)
Publication number | Priority date | Publication date | Assignee | Title |
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DE3003810A1 (en) * | 1980-02-02 | 1981-08-13 | C-D Marketing Ltd., Ann Arbor, Mich. | Vehicle angled rear view mirror system - has non-reflective mirrors including liq. crystal soln. responsive to electric signal |
DE3302630A1 (en) * | 1983-01-27 | 1984-08-16 | Daimler-Benz Ag, 7000 Stuttgart | ELECTRICALLY DIMMABLE REAR MIRROR FOR MOTOR VEHICLES |
DE3411048A1 (en) * | 1984-03-26 | 1985-09-26 | Rainer 6072 Dreieich Bauer | CIRCUIT FOR CONTROLLING LIQUID CRYSTAL LAYERS AND ARRANGEMENT FOR THEIR APPLICATION |
FR2562006A1 (en) * | 1984-03-28 | 1985-10-04 | Tokai Rika Co Ltd | ANTI-BRIGHTNESS MIRROR |
US4603946A (en) * | 1982-09-29 | 1986-08-05 | Kabushiki Kaisha Tokai Rika Denki Seisakusho | Reflection controllable view mirror device for motor vehicle or the like |
US4623222A (en) * | 1983-11-14 | 1986-11-18 | Nippondenso Co., Ltd. | Liquid crystal type dazzle-free transmissive-reflective mirror |
US4632509A (en) * | 1983-11-29 | 1986-12-30 | Nippondenso Co., Ltd. | Glare-shielding type reflector |
US4641922A (en) * | 1983-08-26 | 1987-02-10 | C-D Marketing, Ltd. | Liquid crystal panel shade |
US4655549A (en) * | 1984-02-27 | 1987-04-07 | Nippondenso Co., Ltd. | Automatic antidazzle semitransparent mirror |
US4669826A (en) * | 1984-02-16 | 1987-06-02 | Nippondenso Co., Ltd. | Apparatus for detecting the direction of light for dazzle-free mirrors |
US4669827A (en) * | 1984-02-13 | 1987-06-02 | Nippondenso Co., Ltd. | Detection of manipulation of position apparatus for dazzle-free mirror |
US4669825A (en) * | 1983-12-27 | 1987-06-02 | Nippondenso Co., Ltd. | Control apparatus with delay circuit for antiglare mirror |
US4671615A (en) * | 1984-01-12 | 1987-06-09 | Nippondenso Co., Ltd. | Control apparatus for a dazzle-free reflection mirror of a vehicle |
US4676601A (en) * | 1983-11-14 | 1987-06-30 | Nippondenso Co., Ltd. | Drive apparatus for a liquid crystal dazzle-free mirror arrangement |
US4690508A (en) * | 1982-12-15 | 1987-09-01 | C-D Marketing, Ltd. | Liquid crystal closed-loop controlled mirror systems |
US4697883A (en) * | 1984-08-30 | 1987-10-06 | Nippondenso Co., Ltd. | Control apparatus for two section, glare shield mirror |
DE3613557A1 (en) * | 1986-04-22 | 1987-10-29 | Bernhard Mittelhaeuser | Rear-view mirror for motor vehicles |
US4721364A (en) * | 1983-12-29 | 1988-01-26 | Nippondenso Co., Ltd. | Dazzle-free mirror with photocell in a non-dazzle-free portion |
US4832459A (en) * | 1984-02-06 | 1989-05-23 | Rogers Corporation | Backlighting for electro-optical passive displays and transflective layer useful therewith |
US5193029A (en) * | 1991-11-19 | 1993-03-09 | Donnelly Corporation | Single sensor adaptive drive circuit for rearview mirror system |
US5253109A (en) * | 1992-04-27 | 1993-10-12 | Donnelly Corporation | Electro-optic device with constant light transmitting area |
US5285060A (en) * | 1992-12-15 | 1994-02-08 | Donnelly Corporation | Display for automatic rearview mirror |
US5424898A (en) * | 1991-08-16 | 1995-06-13 | Donnelly Corporation | Fault tolerant drive circuit for electrochromic mirror system |
US5550677A (en) * | 1993-02-26 | 1996-08-27 | Donnelly Corporation | Automatic rearview mirror system using a photosensor array |
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US6302545B1 (en) | 1993-02-26 | 2001-10-16 | Donnelly Corporation | Vehicle control system and method |
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US8017898B2 (en) | 2007-08-17 | 2011-09-13 | Magna Electronics Inc. | Vehicular imaging system in an automatic headlamp control system |
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US8379289B2 (en) | 2003-10-02 | 2013-02-19 | Donnelly Corporation | Rearview mirror assembly for vehicle |
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US8508384B2 (en) | 2003-05-19 | 2013-08-13 | Donnelly Corporation | Rearview mirror assembly for vehicle |
US8508383B2 (en) | 2008-03-31 | 2013-08-13 | Magna Mirrors of America, Inc | Interior rearview mirror system |
US8506096B2 (en) | 2002-09-20 | 2013-08-13 | Donnelly Corporation | Variable reflectance mirror reflective element for exterior mirror assembly |
US8543330B2 (en) | 2000-03-02 | 2013-09-24 | Donnelly Corporation | Driver assist system for vehicle |
US8559093B2 (en) | 1995-04-27 | 2013-10-15 | Donnelly Corporation | Electrochromic mirror reflective element for vehicular rearview mirror assembly |
US8577549B2 (en) | 2003-10-14 | 2013-11-05 | Donnelly Corporation | Information display system for a vehicle |
US8610992B2 (en) | 1997-08-25 | 2013-12-17 | Donnelly Corporation | Variable transmission window |
US8797627B2 (en) | 2002-09-20 | 2014-08-05 | Donnelly Corporation | Exterior rearview mirror assembly |
US8908039B2 (en) | 2000-03-02 | 2014-12-09 | Donnelly Corporation | Vehicular video mirror system |
US9278654B2 (en) | 1999-11-24 | 2016-03-08 | Donnelly Corporation | Interior rearview mirror system for vehicle |
US9376061B2 (en) | 1999-11-24 | 2016-06-28 | Donnelly Corporation | Accessory system of a vehicle |
DE102016204490A1 (en) | 2015-04-23 | 2016-10-27 | Volkswagen Aktiengesellschaft | Device for a vehicle, vehicle |
US9809171B2 (en) | 2000-03-02 | 2017-11-07 | Magna Electronics Inc. | Vision system for vehicle |
US9940528B2 (en) | 2004-12-23 | 2018-04-10 | Magna Electronics Inc. | Driver assistance system for vehicle |
-
1978
- 1978-02-25 DE DE19782808260 patent/DE2808260A1/en not_active Withdrawn
Cited By (112)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3003810A1 (en) * | 1980-02-02 | 1981-08-13 | C-D Marketing Ltd., Ann Arbor, Mich. | Vehicle angled rear view mirror system - has non-reflective mirrors including liq. crystal soln. responsive to electric signal |
US4603946A (en) * | 1982-09-29 | 1986-08-05 | Kabushiki Kaisha Tokai Rika Denki Seisakusho | Reflection controllable view mirror device for motor vehicle or the like |
US4690508A (en) * | 1982-12-15 | 1987-09-01 | C-D Marketing, Ltd. | Liquid crystal closed-loop controlled mirror systems |
US4572619A (en) * | 1983-01-27 | 1986-02-25 | Daimler-Benz Aktiengesellschaft | Electrically dimmable rear-view mirror for motor vehicles |
DE3302630A1 (en) * | 1983-01-27 | 1984-08-16 | Daimler-Benz Ag, 7000 Stuttgart | ELECTRICALLY DIMMABLE REAR MIRROR FOR MOTOR VEHICLES |
US4641922A (en) * | 1983-08-26 | 1987-02-10 | C-D Marketing, Ltd. | Liquid crystal panel shade |
US4623222A (en) * | 1983-11-14 | 1986-11-18 | Nippondenso Co., Ltd. | Liquid crystal type dazzle-free transmissive-reflective mirror |
US4676601A (en) * | 1983-11-14 | 1987-06-30 | Nippondenso Co., Ltd. | Drive apparatus for a liquid crystal dazzle-free mirror arrangement |
US4632509A (en) * | 1983-11-29 | 1986-12-30 | Nippondenso Co., Ltd. | Glare-shielding type reflector |
US4669825A (en) * | 1983-12-27 | 1987-06-02 | Nippondenso Co., Ltd. | Control apparatus with delay circuit for antiglare mirror |
US4721364A (en) * | 1983-12-29 | 1988-01-26 | Nippondenso Co., Ltd. | Dazzle-free mirror with photocell in a non-dazzle-free portion |
US4671615A (en) * | 1984-01-12 | 1987-06-09 | Nippondenso Co., Ltd. | Control apparatus for a dazzle-free reflection mirror of a vehicle |
US4832459A (en) * | 1984-02-06 | 1989-05-23 | Rogers Corporation | Backlighting for electro-optical passive displays and transflective layer useful therewith |
US4669827A (en) * | 1984-02-13 | 1987-06-02 | Nippondenso Co., Ltd. | Detection of manipulation of position apparatus for dazzle-free mirror |
US4669826A (en) * | 1984-02-16 | 1987-06-02 | Nippondenso Co., Ltd. | Apparatus for detecting the direction of light for dazzle-free mirrors |
US4655549A (en) * | 1984-02-27 | 1987-04-07 | Nippondenso Co., Ltd. | Automatic antidazzle semitransparent mirror |
DE3411048A1 (en) * | 1984-03-26 | 1985-09-26 | Rainer 6072 Dreieich Bauer | CIRCUIT FOR CONTROLLING LIQUID CRYSTAL LAYERS AND ARRANGEMENT FOR THEIR APPLICATION |
US4693558A (en) * | 1984-03-28 | 1987-09-15 | Kabushiki Kaisha Tokai Rika Denki Seisakusho | Glare preventive rear view mirror |
DE3511385A1 (en) * | 1984-03-28 | 1985-10-10 | Kabushiki Kaisha Tokai Rika Denki Seisakusho, Aichi | GLARE-FREE REAR MIRROR DEVICE |
FR2562006A1 (en) * | 1984-03-28 | 1985-10-04 | Tokai Rika Co Ltd | ANTI-BRIGHTNESS MIRROR |
US4697883A (en) * | 1984-08-30 | 1987-10-06 | Nippondenso Co., Ltd. | Control apparatus for two section, glare shield mirror |
DE3613557A1 (en) * | 1986-04-22 | 1987-10-29 | Bernhard Mittelhaeuser | Rear-view mirror for motor vehicles |
US5424898A (en) * | 1991-08-16 | 1995-06-13 | Donnelly Corporation | Fault tolerant drive circuit for electrochromic mirror system |
US5193029A (en) * | 1991-11-19 | 1993-03-09 | Donnelly Corporation | Single sensor adaptive drive circuit for rearview mirror system |
US5406414A (en) * | 1992-04-27 | 1995-04-11 | Donnelly Corporation | Electrochromic rearview mirror for vehicles with constant light transmitting area |
US5253109A (en) * | 1992-04-27 | 1993-10-12 | Donnelly Corporation | Electro-optic device with constant light transmitting area |
US5285060A (en) * | 1992-12-15 | 1994-02-08 | Donnelly Corporation | Display for automatic rearview mirror |
US5416313A (en) * | 1992-12-15 | 1995-05-16 | Donnelly Corporation | Display for automatic rearview mirror |
US5530240A (en) * | 1992-12-15 | 1996-06-25 | Donnelly Corporation | Display for automatic rearview mirror |
US6302545B1 (en) | 1993-02-26 | 2001-10-16 | Donnelly Corporation | Vehicle control system and method |
US5760962A (en) * | 1993-02-26 | 1998-06-02 | Donnelly Corporation | Automatic rearview mirror system using a photosensor array |
US5550677A (en) * | 1993-02-26 | 1996-08-27 | Donnelly Corporation | Automatic rearview mirror system using a photosensor array |
US6523964B2 (en) | 1993-02-26 | 2003-02-25 | Donnelly Corporation | Vehicle control system and method |
US8063759B2 (en) | 1993-02-26 | 2011-11-22 | Donnelly Corporation | Vehicle vision system |
US6802617B2 (en) | 1993-02-26 | 2004-10-12 | Donnelly Corporation | Vehicle image capture system |
US6953253B2 (en) | 1993-02-26 | 2005-10-11 | Donnelly Corporation | Vehicle photosensing control system |
US8314689B2 (en) | 1993-02-26 | 2012-11-20 | Donnelly Corporation | Vehicular vision system |
US8203440B2 (en) | 1993-02-26 | 2012-06-19 | Donnelly Corporation | Vehicular vision system |
US7859565B2 (en) | 1993-02-26 | 2010-12-28 | Donnelly Corporation | Vision system for a vehicle including image processor |
US8098142B2 (en) | 1993-02-26 | 2012-01-17 | Magna Mirrors Of America, Inc. | Vehicle monitoring system |
US8559093B2 (en) | 1995-04-27 | 2013-10-15 | Donnelly Corporation | Electrochromic mirror reflective element for vehicular rearview mirror assembly |
US8492698B2 (en) | 1996-03-25 | 2013-07-23 | Donnelly Corporation | Driver assistance system for a vehicle |
US8481910B2 (en) | 1996-03-25 | 2013-07-09 | Donnelly Corporation | Vehicular image sensing system |
US7994462B2 (en) | 1996-03-25 | 2011-08-09 | Donnelly Corporation | Vehicular image sensing system |
US8324552B2 (en) | 1996-03-25 | 2012-12-04 | Donnelly Corporation | Vehicular image sensing system |
US7655894B2 (en) | 1996-03-25 | 2010-02-02 | Donnelly Corporation | Vehicular image sensing system |
US8222588B2 (en) | 1996-03-25 | 2012-07-17 | Donnelly Corporation | Vehicular image sensing system |
DE19622002B4 (en) * | 1996-05-31 | 2004-04-29 | Cherry Mikroschalter Gmbh | Self-dimming mirror system |
DE19622002A1 (en) * | 1996-05-31 | 1997-12-04 | Cherry Mikroschalter Gmbh | Self-dimming rear-view or external mirror for motor vehicle |
US8610992B2 (en) | 1997-08-25 | 2013-12-17 | Donnelly Corporation | Variable transmission window |
US8203443B2 (en) | 1999-08-12 | 2012-06-19 | Donnelly Corporation | Vehicle vision system |
US8629768B2 (en) | 1999-08-12 | 2014-01-14 | Donnelly Corporation | Vehicle vision system |
US9278654B2 (en) | 1999-11-24 | 2016-03-08 | Donnelly Corporation | Interior rearview mirror system for vehicle |
US9376061B2 (en) | 1999-11-24 | 2016-06-28 | Donnelly Corporation | Accessory system of a vehicle |
US10144355B2 (en) | 1999-11-24 | 2018-12-04 | Donnelly Corporation | Interior rearview mirror system for vehicle |
US9783114B2 (en) | 2000-03-02 | 2017-10-10 | Donnelly Corporation | Vehicular video mirror system |
US9014966B2 (en) | 2000-03-02 | 2015-04-21 | Magna Electronics Inc. | Driver assist system for vehicle |
US9809171B2 (en) | 2000-03-02 | 2017-11-07 | Magna Electronics Inc. | Vision system for vehicle |
US8908039B2 (en) | 2000-03-02 | 2014-12-09 | Donnelly Corporation | Vehicular video mirror system |
US9809168B2 (en) | 2000-03-02 | 2017-11-07 | Magna Electronics Inc. | Driver assist system for vehicle |
US9315151B2 (en) | 2000-03-02 | 2016-04-19 | Magna Electronics Inc. | Driver assist system for vehicle |
US8543330B2 (en) | 2000-03-02 | 2013-09-24 | Donnelly Corporation | Driver assist system for vehicle |
US10053013B2 (en) | 2000-03-02 | 2018-08-21 | Magna Electronics Inc. | Vision system for vehicle |
US10131280B2 (en) | 2000-03-02 | 2018-11-20 | Donnelly Corporation | Vehicular video mirror system |
US8676491B2 (en) | 2000-03-02 | 2014-03-18 | Magna Electronics Inc. | Driver assist system for vehicle |
US10239457B2 (en) | 2000-03-02 | 2019-03-26 | Magna Electronics Inc. | Vehicular vision system |
US10179545B2 (en) | 2000-03-02 | 2019-01-15 | Magna Electronics Inc. | Park-aid system for vehicle |
US8654433B2 (en) | 2001-01-23 | 2014-02-18 | Magna Mirrors Of America, Inc. | Rearview mirror assembly for vehicle |
US8465162B2 (en) | 2002-06-06 | 2013-06-18 | Donnelly Corporation | Vehicular interior rearview mirror system |
US8608327B2 (en) | 2002-06-06 | 2013-12-17 | Donnelly Corporation | Automatic compass system for vehicle |
US8465163B2 (en) | 2002-06-06 | 2013-06-18 | Donnelly Corporation | Interior rearview mirror system |
US9090211B2 (en) | 2002-09-20 | 2015-07-28 | Donnelly Corporation | Variable reflectance mirror reflective element for exterior mirror assembly |
US8797627B2 (en) | 2002-09-20 | 2014-08-05 | Donnelly Corporation | Exterior rearview mirror assembly |
US8727547B2 (en) | 2002-09-20 | 2014-05-20 | Donnelly Corporation | Variable reflectance mirror reflective element for exterior mirror assembly |
US8400704B2 (en) | 2002-09-20 | 2013-03-19 | Donnelly Corporation | Interior rearview mirror system for a vehicle |
US10029616B2 (en) | 2002-09-20 | 2018-07-24 | Donnelly Corporation | Rearview mirror assembly for vehicle |
US9073491B2 (en) | 2002-09-20 | 2015-07-07 | Donnelly Corporation | Exterior rearview mirror assembly |
US10363875B2 (en) | 2002-09-20 | 2019-07-30 | Donnelly Corportion | Vehicular exterior electrically variable reflectance mirror reflective element assembly |
US9878670B2 (en) | 2002-09-20 | 2018-01-30 | Donnelly Corporation | Variable reflectance mirror reflective element for exterior mirror assembly |
US8506096B2 (en) | 2002-09-20 | 2013-08-13 | Donnelly Corporation | Variable reflectance mirror reflective element for exterior mirror assembly |
US9341914B2 (en) | 2002-09-20 | 2016-05-17 | Donnelly Corporation | Variable reflectance mirror reflective element for exterior mirror assembly |
US10661716B2 (en) | 2002-09-20 | 2020-05-26 | Donnelly Corporation | Vehicular exterior electrically variable reflectance mirror reflective element assembly |
US10538202B2 (en) | 2002-09-20 | 2020-01-21 | Donnelly Corporation | Method of manufacturing variable reflectance mirror reflective element for exterior mirror assembly |
US9545883B2 (en) | 2002-09-20 | 2017-01-17 | Donnelly Corporation | Exterior rearview mirror assembly |
US9557584B2 (en) | 2003-05-19 | 2017-01-31 | Donnelly Corporation | Rearview mirror assembly for vehicle |
US8508384B2 (en) | 2003-05-19 | 2013-08-13 | Donnelly Corporation | Rearview mirror assembly for vehicle |
US9783115B2 (en) | 2003-05-19 | 2017-10-10 | Donnelly Corporation | Rearview mirror assembly for vehicle |
US10449903B2 (en) | 2003-05-19 | 2019-10-22 | Donnelly Corporation | Rearview mirror assembly for vehicle |
US10829052B2 (en) | 2003-05-19 | 2020-11-10 | Donnelly Corporation | Rearview mirror assembly for vehicle |
US10166927B2 (en) | 2003-05-19 | 2019-01-01 | Donnelly Corporation | Rearview mirror assembly for vehicle |
US11433816B2 (en) | 2003-05-19 | 2022-09-06 | Magna Mirrors Of America, Inc. | Vehicular interior rearview mirror assembly with cap portion |
US8379289B2 (en) | 2003-10-02 | 2013-02-19 | Donnelly Corporation | Rearview mirror assembly for vehicle |
US8705161B2 (en) | 2003-10-02 | 2014-04-22 | Donnelly Corporation | Method of manufacturing a reflective element for a vehicular rearview mirror assembly |
US8577549B2 (en) | 2003-10-14 | 2013-11-05 | Donnelly Corporation | Information display system for a vehicle |
US10509972B2 (en) | 2004-12-23 | 2019-12-17 | Magna Electronics Inc. | Vehicular vision system |
US9940528B2 (en) | 2004-12-23 | 2018-04-10 | Magna Electronics Inc. | Driver assistance system for vehicle |
US11308720B2 (en) | 2004-12-23 | 2022-04-19 | Magna Electronics Inc. | Vehicular imaging system |
US8503062B2 (en) | 2005-05-16 | 2013-08-06 | Donnelly Corporation | Rearview mirror element assembly for vehicle |
US11124121B2 (en) | 2005-11-01 | 2021-09-21 | Magna Electronics Inc. | Vehicular vision system |
US7972045B2 (en) | 2006-08-11 | 2011-07-05 | Donnelly Corporation | Automatic headlamp control system |
US8434919B2 (en) | 2006-08-11 | 2013-05-07 | Donnelly Corporation | Adaptive forward lighting system for vehicle |
US8162518B2 (en) | 2006-08-11 | 2012-04-24 | Donnelly Corporation | Adaptive forward lighting system for vehicle |
EP2008870A3 (en) * | 2007-06-28 | 2010-03-17 | Murakami Corporation | Liquid crystal glare-proof mirror |
US10726578B2 (en) | 2007-08-17 | 2020-07-28 | Magna Electronics Inc. | Vehicular imaging system with blockage determination and misalignment correction |
US8017898B2 (en) | 2007-08-17 | 2011-09-13 | Magna Electronics Inc. | Vehicular imaging system in an automatic headlamp control system |
US9972100B2 (en) | 2007-08-17 | 2018-05-15 | Magna Electronics Inc. | Vehicular imaging system comprising an imaging device with a single image sensor and image processor for determining a totally blocked state or partially blocked state of the single image sensor as well as an automatic correction for misalignment of the imaging device |
US11328447B2 (en) | 2007-08-17 | 2022-05-10 | Magna Electronics Inc. | Method of blockage determination and misalignment correction for vehicular vision system |
US9018577B2 (en) | 2007-08-17 | 2015-04-28 | Magna Electronics Inc. | Vehicular imaging system with camera misalignment correction and capturing image data at different resolution levels dependent on distance to object in field of view |
US11908166B2 (en) | 2007-08-17 | 2024-02-20 | Magna Electronics Inc. | Vehicular imaging system with misalignment correction of camera |
US8508383B2 (en) | 2008-03-31 | 2013-08-13 | Magna Mirrors of America, Inc | Interior rearview mirror system |
US10175477B2 (en) | 2008-03-31 | 2019-01-08 | Magna Mirrors Of America, Inc. | Display system for vehicle |
DE102016204490A1 (en) | 2015-04-23 | 2016-10-27 | Volkswagen Aktiengesellschaft | Device for a vehicle, vehicle |
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