WO2001007276A1 - Eye protecting device - Google Patents
Eye protecting device Download PDFInfo
- Publication number
- WO2001007276A1 WO2001007276A1 PCT/DE2000/002356 DE0002356W WO0107276A1 WO 2001007276 A1 WO2001007276 A1 WO 2001007276A1 DE 0002356 W DE0002356 W DE 0002356W WO 0107276 A1 WO0107276 A1 WO 0107276A1
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- WIPO (PCT)
- Prior art keywords
- eyes
- radiation source
- support
- schutzvoitichtung
- eye
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
- B60J3/04—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles adjustable in transparency
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
Definitions
- the invention relates to an eye protection device against radiation incident from a radiation source, such as, for example, electromagnetic radiation of all kinds or particle radiation.
- a radiation source such as, for example, electromagnetic radiation of all kinds or particle radiation.
- the invention relates to an anti-glare device for use in vehicles, motorcycle helmets, glasses and the like
- Effective eye protection does not play a role in the field of Veikehistechnik, for example also in the field of occupational safety. for example when dealing with welding equipment or Laset appaiatuien the eyes are to be protected by suitable measures.
- the problem here is that, for.
- laser protective goggles or welding visors either have an extremely reduced transmission and thus often make it extremely difficult to detect objects outside the radiation source, or are wavelength-sensitive, that is to say they only have a protective effect for a specific type of laser source.
- the invention is based on the object of specifying an eye protection device against radiation incident from a radiation source and in particular a glare protection device which adapts variably to the position of the at least one radiation source and the eyes and a selective imaging of the eyes allows directed glare.
- an eye protection device is provided according to the invention.
- a locating device for the continuous dynamic detection of the position of the at least one radiation source
- an eye position detection device for determining the position and or the gaze direction of the eyes to be protected
- a transparent, flat diaphragm carrier in front of the eyes to be protected, on which at least one aperture spot that absorbs or reflects the radiation with preferably dynamically variable, reduced transparency can be generated in a temporally and spatially variable manner
- - One with the location and eye position detection device and the diaphragm carrier Coupled computing and control device which continuously determines the position of the radiation source detected by the locating device and the position continuously detected by the detection device.
- the position of the eyes to be protected, the connection coordinates between the eyes and the radiation source and their penetration coordinates are continuously calculated by the aperture carrier and the aperture point or apertures are generated in the area of the respectively calculated penetration coordinates by appropriate activation of the aperture carrier.
- dynamic anti-glare protection is thus implemented which adapts its position and formation of the lens flare to the glare source moving relative to the eye or eyes in real time
- a lens flare is only generated if there is a source of glare.
- the . Formation of the aperture support and the aperture spot to be generated thereon can be adapted to the quality of the radiation sources.
- a transparent liquid crystal matrix arrangement for generating one or more lens flares, which hide the headlights of an oncoming vehicle, is suitable for a protective device whose aperture support is integrated into a vehicle windshield or a visor of a motorcycle helmet.
- the computing and control device can continuously and in real time, for example, the penetration point of the connecting straight line between the eyes and the respective radiation source is calculated by the aperture carrier and the lens flare is generated there. If the shape and / or size of the radiation source is also detected, the spread of the lens flare on the screen carrier can be adapted to it. In this case, not only the actual connecting line and are used as connection and penetration coordinates Penetration point between the eyes and the respective radiation source, but practically the envelope or the “connecting body” between the dynamic and changing spatial areas occupied by the eyes and the radiation source or sources is calculated. With regard to the detection of the glare quality, it must be assumed that, for example, the intensity of the dimmed Radiation source (s) must be evaluated before the background brightness.
- glare radiation is not only to be understood as visible light with high intensity, but also generally radiation qualities that are unpleasant or damaging to the eyes to be protected.
- inventive device can not only directly detect radiation sources as such , but also images of such radiation sources on reflective surfaces, such as reflections from oncoming traffic headlights on wet asphalt.
- the blend quality i.e. H.
- the necessary degree of transparency of the lens flare can be dynamically changed and adapted.
- FIG. 2 shows a highly schematic top view of a motor vehicle with an eye protection device according to FIG. 1.
- the eye protection device shown in the figures is designated as a whole by the reference number 1. It has a central computing and control device 2, which works with a microprocessor. Further components are a locating device 3 based on a camera system with at least one camera comprising a CCD sensor, an eye position detection device 4, which is formed by a known, laser-based eye tracking system, and a so-called aperture support 5 2, which is formed in the exemplary embodiment shown in FIG. 2 by a transparent liquid crystal matrix arrangement which is integrated in the windshield 6 of the motor vehicle 7.
- the matrix arrangement covers the entire surface of the windshield 6 and is divided into individual, liquid-crystal elements which are placed close to one another in matrix form and have a size of a few tenths of a millimeter up to the square centimeter range.
- the CCD sensor camera of the locating device 3 continuously detects the area outside the motor vehicle that is in the field of vision of the driver 10. As soon as a glare source in the form of a headlamp 11 of an oncoming vehicle is detected by the locating device 3, the corresponding coordinate data of the changing headlamp position and data representing the radiation intensity of the headlamps are continuously passed on to the central computing and control device.
- the positions of the eyes 12 of the driver 10 are detected by the eye position detection device 4.
- the corresponding coordinate data are also forwarded to the central computing and control device 2.
- data about the driver's glare sensitivity and adaptation speed which are also stored in the central computing and control device 2, can also be included in the computing process.
- the computing and control unit continuously calculates the spatial coordinates of the connecting straight line 13 between the eyes 12 and the headlights 1 1 from the coordinate data of the headlights 11 and the eyes 12.
- the coordinates of the "motor vehicle” can be derived from this data, the coordinates of the imaginary penetration points of the connecting straight line 13 through the aperture support 5 in the windshield 6.
- the computing and control device 2 is designed in such a way that all radiation quality coordinate detection and further processing processes take place in real time, the aperture spots 9 the penetration points 14 are thus dynamically adapted to the changing positions of oncoming vehicle and own motor vehicle 7.
- the computing and control device 2 controls the liquid crystal matrix arrangement via the driver stage 8 in such a way that the corresponding LCD matrix elements for forming the aperture spots 9 are darkened around the penetration points 14. Since the CCD sensor camera of the locating device 3 is designed in such a way that the shape and size of the headlights 11 is also detected, the lens flares 9 are also correspondingly designed in terms of shape and size.
- a brightness measuring device 15 is provided in the eye protection device 1, which determines the ambient brightness. Based on the corresponding measurement data, which are also given to the central computing and control device 2, the transparency of the lens flare 9, which is necessary to achieve a sufficient anti-glare effect, can be determined and taken into account, including the data of the location device and the stored data on glare sensitivity and adaptation speed of the driver the aperture support 5 can be controlled accordingly. In practice, this means that in an oncoming vehicle traveling in the daytime with light that has practically no glare on the driver, no lens flare is generated. At dusk, when only a slight glare is to be expected, the liquid crystal matrix arrangement is controlled in such a way that the transmission is only slightly reduced in the area of the lens flare.
- the lens flare transmission can be reduced to practically zero.
- the eye protection device according to the invention dynamically darkens exactly the area of the windshield behind which the headlights of an oncoming vehicle are located. To this extent, the driver 10 is effectively protected against the dazzling effects of oncoming traffic. In spite of this, practically the entire area of the windshield remains unimpaired in its transmission, whereby the night vision properties through the windshield practically do not deteriorate, but are even improved considerably.
- the aperture support 5 is dimmed on its entire surface by reducing its degree of transparency.
- an eye protection device can also be used with a motorcycle helmet, in which case the panel support is integrated into the visor.
- the panel support can also be integrated into an independent screen that can be positioned in the room in front of the person to be protected.
- the optically active layer or layer can be applied in the volume of the flat support or on its surface.
Abstract
The invention relates to an eye protecting device against incident radiation from a radiation source. Said device is equipped with a detector (3) for the radiation source, an eye position detecting device (4) for the position of the eyes, a transparent flat antidazzle screen support for producing an antidazzle spot and a central arithmetic and control unit (2). The latter produces an antidazzle spot (9) on the antidazzle screen support (5) by performing a corresponding control of the antidazzle screen support (5) which reduces the dazzling effect of the radiation source in a targeted manner.
Description
AugenschutzvorrichtungEye protection device
Die Erfindung betrifft eine Augenschutzvorrichtung gegen von einer Strahlungsquelle einfallende Strahlung, wie z B elektromagnetische Strahlung aller Art oder Teilchenstrahlung. Insbesondere bezieht sich die Erfindung auf eine Blendschutzvoπichtung zum Einsatz m Fahrzeugen, Motoπadhelmen, Brillen u dglThe invention relates to an eye protection device against radiation incident from a radiation source, such as, for example, electromagnetic radiation of all kinds or particle radiation. In particular, the invention relates to an anti-glare device for use in vehicles, motorcycle helmets, glasses and the like
Dei Hintergrund der Erfindung erschließt sich am augenfälligsten am kon- kieten Beispiel des Sti-aßenveikehis Dort ist em nach wie voi weitgehend ungelöstes Problem die Blendung des Gegenverkehrs bei Nachtfahrten Bishei wurde zui Losung dieses Pioblems versucht, die Blendwirkung durch geeignete Manipulationen an der Blendquelle, also z B an den Schemwerfern eines Kiaftfahrzeuges herabzusetzen So ist es beispielswei- se bekannt, in Fahrzeuge einen Lichtsensor zu integrieren, der entgegenkommende Fahrzeuge erfaßt und die eigenen Scheinwerfer bei Gegenverkehr von Fern- auf Abblendlicht umstellt Dies bringt zwai eine Schutzwπ- kung für den anderen Verkehrsteilnehmer mit sich, eine Eigenblendung durch entgegenkommende Fahrzeuge, die über solche automatische Ab- blendvorrichtungen nicht verfugen und deren Fahrei das Abblenden vergessen, wnd dadurch jedoch nicht verhindert Darüber hinaus gibt es bislang noch keinen wirksamen Blendschutz gegen stark reflektiertes Licht, wie es beispielsweise bei nassem Asphalt selbst bei gut justiertei Abblendhchtem- stellung des Gegenveikehis auftiittThe background of the invention is most evident from the concise example of the Sti-aßenveikehis. There is still a largely unresolved problem of dazzling oncoming traffic when driving at night For example, to lower the headlights of a motor vehicle. For example, it is known to integrate a light sensor in vehicles that detects oncoming vehicles and switches their headlights from high beam to low beam when there is oncoming traffic. This brings about a protective effect for the other road user with itself, self-dazzling from oncoming vehicles that do not have such automatic dimming devices and whose vehicle forgets dimming, but does not prevent this. In addition, there is as yet no effective anti-glare protection against highly reflected light, as was the case for example For example, when the asphalt is wet, even when the anti-glare setting is low
Ein wuksamei Augenschutz spielt da bei hinaus nicht n auf dem Gebiet dei Veikehistechnik eine Rolle Beispielsweise auch im Beieich des Ai- beitsschutzes. etwa im Umgang mit Schweißgeraten odei Laset appaiatuien
sind die Augen durch geeignete Maßnahmen zu schützen. Hier besteht die Problematik, daß z. B. Las er- Schutzbrillen oder Schweißervisiere entweder eine extrem verringerte Transmission aufweisen und somit die Erkennbarkeit von Gegenständen außerhalb der Strahlungsquelle oft extrem erschwe- ren, oder wellenlängen-sensitiv sind, d. h. beispielsweise nur für eine spezielle Alt von Laserquelle überhaupt eine Schutzwirkung entfalten.Effective eye protection does not play a role in the field of Veikehistechnik, for example also in the field of occupational safety. for example when dealing with welding equipment or Laset appaiatuien the eyes are to be protected by suitable measures. The problem here is that, for. For example, laser protective goggles or welding visors either have an extremely reduced transmission and thus often make it extremely difficult to detect objects outside the radiation source, or are wavelength-sensitive, that is to say they only have a protective effect for a specific type of laser source.
Ausgehend von der geschilderten Problematik liegt der Erfindung die Aufgabe zugrunde, eine Augenschutzvomchtung gegen von einer Strahlungs- quelle einfallende Strahlung und insbesondere eine Blendschutzvorrichtung anzugeben, die sich variabel an die Position der mindestens einen Strahlungsquelle und der Augen anpaßt und eine selektive Abbiendung der auf die Augen gerichteten Blendstrahlung ermöglicht.Based on the problems described, the invention is based on the object of specifying an eye protection device against radiation incident from a radiation source and in particular a glare protection device which adapts variably to the position of the at least one radiation source and the eyes and a selective imaging of the eyes allows directed glare.
Zur Lösung dieser Aufgabe ist erfindungsgemäß eine Augenschutzvomchtung vorgesehen mitTo achieve this object, an eye protection device is provided according to the invention
- einer Ortungseinrichtung zur laufenden dynamischen Erfassung der Position der mindestens einen Strahlungsquelle,a locating device for the continuous dynamic detection of the position of the at least one radiation source,
- einer Augenpositions-Erfassungseinrichtung zur Bestimmung der Posi- tion und oder der Blickrichtung der zu schützenden Augen,an eye position detection device for determining the position and or the gaze direction of the eyes to be protected,
- einem transparenten, flächigen Blendenträger vor den zu schützenden Augen, auf dem zeitlich und örtlich variabel mindestens ein die Strahlung absorbierender oder reflektierender Blendenfleck mit vorzugsweise dynamisch variierbarer verminderter Transparenz erzeugbar ist, und - einer mit der Ortungs- und der Augenpositions-Erfassungseinrichtung sowie dem Blendenträger gekoppelten Rechen- und Steuereinrichtung , die aus der von der Ortungseinrichtung laufend erfaßten Position der Strahlungsquelle und der von der Erfassungseinrichtung laufend be-
stimmten Position der zu schützenden Augen die Verbindungskoordinaten zwischen Augen und Strahlungsquelle und deren Durchstoßkoordinaten durch den Blendenträger laufend berechnet und im Bereich der jeweils berechneten Durchstoßkoordinaten durch entsprechende An- Steuerung des Blendenträgers den oder die Blendenflecke erzeugt.- A transparent, flat diaphragm carrier in front of the eyes to be protected, on which at least one aperture spot that absorbs or reflects the radiation with preferably dynamically variable, reduced transparency can be generated in a temporally and spatially variable manner, and - One with the location and eye position detection device and the diaphragm carrier Coupled computing and control device, which continuously determines the position of the radiation source detected by the locating device and the position continuously detected by the detection device. the position of the eyes to be protected, the connection coordinates between the eyes and the radiation source and their penetration coordinates are continuously calculated by the aperture carrier and the aperture point or apertures are generated in the area of the respectively calculated penetration coordinates by appropriate activation of the aperture carrier.
Aufgrund dieser Ausbildung der Augenschutzvorrichtung wird also ein dynamischer Blendschutz realisiert, der sich in „Echtzeit" in seiner Position und Ausbildung des Blendenfleckes an die sich relativ zu dem oder den Augen bewegende Blendquelle anpaßt. Dabei wird ein entsprechenderOn the basis of this design of the eye protection device, dynamic anti-glare protection is thus implemented which adapts its position and formation of the lens flare to the glare source moving relative to the eye or eyes in real time
Blendenfleck nur dann erzeugt, wenn eine Blendquelle vorhanden ist. Die . Ausbildung des Blendenträgers und des darauf zu erzeugenden Blendenfleckes kann dabei an die Qualität der Strahlungsquellen angepaßt werden. So ist für eine Schutzvoπϊchtung, deren Blendenträger in eine Fahrzeug- Windschutzscheibe oder ein Visier eines Motorradhelmes integriert ist, eine transparente Flüssigkristall-Matrixanordnung zur Erzeugung eines oder auch mehrerer Blendenflecke geeignet, die die Scheinwerfer eines entgegenkommenden Fahrzeuges ausblenden. Durch die laufende Ermittlung der Position der Blendquelle durch die Ortungsei ichtung und der Position bzw. Blickrichtung der zu schützenden Augen mit Hilfe der Augenpositi- ons-Erfassungseinrichtung kann von der Rechen- und Steuereinrichtung laufend und in Echtzeit beispielsweise der Durchstoßpunkt der Verbindungsgeraden zwischen den Augen und der jeweiligen Strahlungsquelle durch den Blendenträger berechnet und dort der Blendenfleck erzeugt wer- den. Wird zusätzlich die Form und/oder Größe der Strahlungsquelle erfaßt, so kann der Blendenfleck in seiner Ausbreitung auf dem Blendenträger daran angepaßt werden. In diesem Falle werden als Verbindungs- und Durchstoßkoordinaten nicht nur die eigentliche Verbindungsgerade und
Durchstoßpunkt zwischen Augen und der jeweiligen Strahlungsquelle, sondern praktisch die Einhüllende oder der „Verbindungskörper" zwischen den von den Augen und der oder den Strahlungsquellen belegten, sich dynamisch verändernden Ortsflächen berechnet. Hinsichtlich der Erfassung der Blendqualität ist darauf abzustellen, daß beispielsweise die Intensität der abzublendenden Strahlungsquelle(n) vor der Hintergrundhelligkeit auszuwerten ist.A lens flare is only generated if there is a source of glare. The . Formation of the aperture support and the aperture spot to be generated thereon can be adapted to the quality of the radiation sources. For example, a transparent liquid crystal matrix arrangement for generating one or more lens flares, which hide the headlights of an oncoming vehicle, is suitable for a protective device whose aperture support is integrated into a vehicle windshield or a visor of a motorcycle helmet. Through the ongoing determination of the position of the glare source by the locating device and the position or viewing direction of the eyes to be protected with the aid of the eye position detection device, the computing and control device can continuously and in real time, for example, the penetration point of the connecting straight line between the eyes and the respective radiation source is calculated by the aperture carrier and the lens flare is generated there. If the shape and / or size of the radiation source is also detected, the spread of the lens flare on the screen carrier can be adapted to it. In this case, not only the actual connecting line and are used as connection and penetration coordinates Penetration point between the eyes and the respective radiation source, but practically the envelope or the “connecting body” between the dynamic and changing spatial areas occupied by the eyes and the radiation source or sources is calculated. With regard to the detection of the glare quality, it must be assumed that, for example, the intensity of the dimmed Radiation source (s) must be evaluated before the background brightness.
Im übrigen wird darauf hingewiesen, daß unter „Blendstrahlung" nicht nur sichtbares Licht mit hoher Intensität, sondern ganz generell Strahlungsqualitäten zu verstehen sind, die unangenehm oder schädigend für die zu schützenden Augen sind. Ferner kann die erfϊndungsgemäße Vomchtung nicht nur Strahlungsquellen als solche direkt erfassen, sondern auch Abbildungen von solchen Strahhmgsquellen auf reflektierenden Flächen, wie z. B. Reflektionen von Gegenverkehr-Scheinwerfern auf nassem Asphalt.Furthermore, it is pointed out that “glare radiation” is not only to be understood as visible light with high intensity, but also generally radiation qualities that are unpleasant or damaging to the eyes to be protected. Furthermore, the inventive device can not only directly detect radiation sources as such , but also images of such radiation sources on reflective surfaces, such as reflections from oncoming traffic headlights on wet asphalt.
Wird gemäß einer bevorzugten Ausführungsform der Erfindung schließlich die Blendqualität, d. h. zum Beispiel der Intensitätsunterschied zwischen der Blendquelle und der Umgebungshelligkeit, erfaßt, so kann das notwen- dige Transparenzmaß des Blendenfleckes dynamisch verändert und angepaßt werden.Finally, according to a preferred embodiment of the invention, the blend quality, i.e. H. For example, if the difference in intensity between the glare source and the ambient brightness is detected, the necessary degree of transparency of the lens flare can be dynamically changed and adapted.
Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen und der nachfolgenden Beschreibung, in der ein Ausführungsbei- spiel des Erfmdungsgegenstandes anhand der beigefügten Zeichnungen näher erläutert wird. Es zeigen:
Fig. 1 ein Blockdiagramm der Komponenten einer Augenschutzvor- richtung, undAdvantageous developments of the invention result from the subclaims and the following description, in which an exemplary embodiment of the invention is explained in more detail with reference to the accompanying drawings. Show it: 1 is a block diagram of the components of an eye protection device, and
Fig. 2 eine höchst schematische Draufsicht auf ein Kraftfahrzeug mit einer Augenschutzvoirichtung gemäß Fig. 1.FIG. 2 shows a highly schematic top view of a motor vehicle with an eye protection device according to FIG. 1.
Die in den Figuren gezeigte Augenschutzvorrichtung ist als Ganzes mit der Bezugsziffer 1 bezeichnet. Sie weist eine zentrale Rechen- und Steuereinrichtung 2 auf, die Mikroprozessor-gestützt arbeitet. Weitere Komponenten sind eine Ortungseimichtung 3 auf der Basis eines Kamerasystems mit mindestens einer Kamera umfassend einen CCD-Sensor, eine Augenpositi- ons-Erfassungseinrichtung 4, die durch ein bekanntes, Laser-gestütztes Eye-Tracking-System gebildet ist, und einen sogenannten Blendenträger 5, der im gezeigten Ausführungsbeispiel gemäß Fig. 2 durch eine transparente Flüssigkristall-Matrixanordnung gebildet ist, die in die Windschutzscheibe 6 des Kraftfahrzeuges 7 integriert ist. Die Matrixanordnung bedeckt die komplette Fläche der Windschutzscheibe 6 und ist in einzelne, matrixför- mig dicht aneinander gesetzte Flüssigkristall-Elemente mit einer Größe von einigen Zehntel mm bis in den Quadratzentimeter-Bereich eingeteilt. Wie bei LCD-Anzeigen üblich, köimen einzelne Matrix-Elementen über eine Treiberstufe 8 angesteuert und das Transmissionsverhalten der Matrixanordnung in einzelnen Matrix-Elementen gezielt verändert werden. Es können also zeitlich und örtlich variabel in definierten Bereichen der Fläche des Blendenträgers 5 dunkle Blendenflecken 9 erzeugt werden, in de- ren Bereich die Windschutzscheibe 6 dann weniger transparent bis undurchsichtig wird.
Anhand der Fig. 2 kann nun die Funktionsweise der Blendschutzvoπichtung erläutert werden:The eye protection device shown in the figures is designated as a whole by the reference number 1. It has a central computing and control device 2, which works with a microprocessor. Further components are a locating device 3 based on a camera system with at least one camera comprising a CCD sensor, an eye position detection device 4, which is formed by a known, laser-based eye tracking system, and a so-called aperture support 5 2, which is formed in the exemplary embodiment shown in FIG. 2 by a transparent liquid crystal matrix arrangement which is integrated in the windshield 6 of the motor vehicle 7. The matrix arrangement covers the entire surface of the windshield 6 and is divided into individual, liquid-crystal elements which are placed close to one another in matrix form and have a size of a few tenths of a millimeter up to the square centimeter range. As is usual with LCD displays, individual matrix elements can be controlled via a driver stage 8 and the transmission behavior of the matrix arrangement in individual matrix elements can be changed in a targeted manner. Thus, dark aperture spots 9 can be generated in defined areas of the area of the aperture support 5, in the area of which the windshield 6 then becomes less transparent to opaque. The mode of operation of the anti-glare device can now be explained with reference to FIG. 2:
Die CCD-Sensorkamera der Ortungseimichtung 3 erfaßt laufend den im Blickfeld des Fahrers 10 liegenden Bereich außerhalb des Kraftfalirzeuges. Sobald eine Blendquelle in Form eines Scheinwerfers 11 eines entgegenkommenden Fahrzeugs von der Ortungseimichtung 3 erfaßt wird, werden die entsprechenden Koordinatendaten der sich ändernden Scheinwerferpo- sition und Daten, die die Strahlungsintensität der Scheinwerfer repräsentie- ren, laufend an die zentrale Rechen- und Steuereinrichtung gegeben.The CCD sensor camera of the locating device 3 continuously detects the area outside the motor vehicle that is in the field of vision of the driver 10. As soon as a glare source in the form of a headlamp 11 of an oncoming vehicle is detected by the locating device 3, the corresponding coordinate data of the changing headlamp position and data representing the radiation intensity of the headlamps are continuously passed on to the central computing and control device.
Simultan werden die Positionen der Augen 12 des Fahrers 10 durch die Augenpositions-Erfassungseimichtung 4 erfaßt. Die entsprechenden Koordinatendaten werden ebenfalls an die zentrale Rechen- und Steuereinrich- tung 2 weitergeleitet. In den Rechenprozeß können darüber hinaus auch Daten über die Blendempfindlichkeit und Adaptionsgeschwindigkeit des Fahrers, die ebenfalls in der zentralen Rechen- und Steuereinrichtung 2 gespeichert sind, einbezogen werden.Simultaneously, the positions of the eyes 12 of the driver 10 are detected by the eye position detection device 4. The corresponding coordinate data are also forwarded to the central computing and control device 2. In addition, data about the driver's glare sensitivity and adaptation speed, which are also stored in the central computing and control device 2, can also be included in the computing process.
Die Rechen- und Steuereinheit berechnet laufend aus den Koordinatendaten der Scheinwerfer 11 und der Augen 12 die Raumkoordinaten der Verbindungsgeraden 13 zwischen den Augen 12 und den Scheinwerfern 1 1. Aus diesen Daten, die auf das Koordinatensystem „Kraftfahrzeug" bezogen sind, können die Koordinaten der gedachten Durchstoßpunkte der Verbin- dungsgeraden 13 durch den Blendenträger 5 in der Windschutzscheibe 6 ebenfalls berechnet werden. Die Rechen- und Steuereinrichtung 2 ist dabei so ausgelegt, daß alle Sti'ahlungsqualitäts-Koordinatenerfassungs- und WeiteiΥerarbeitungsprozesse in Echtzeit erfolgen, die Blendenflecke 9 auf
den Durchstoßpunkten 14 also dynamisch den sich ändernden Positionen von entgegenkommenden Fahrzeug und eigenem Kraftfahrzeug 7 angepaßt werden.The computing and control unit continuously calculates the spatial coordinates of the connecting straight line 13 between the eyes 12 and the headlights 1 1 from the coordinate data of the headlights 11 and the eyes 12. The coordinates of the "motor vehicle" can be derived from this data, the coordinates of the imaginary penetration points of the connecting straight line 13 through the aperture support 5 in the windshield 6. The computing and control device 2 is designed in such a way that all radiation quality coordinate detection and further processing processes take place in real time, the aperture spots 9 the penetration points 14 are thus dynamically adapted to the changing positions of oncoming vehicle and own motor vehicle 7.
Auf der Basis der berechneten Durchstoßpunkte 14 steuert die Rechen- und Steuereinrichtung 2 die Flüssigkristall-Matrixanordnimg über die Treiberstufe 8 so an, daß um die Durchstoßpunkte 14 die entsprechenden LCD- Matrix-Elemente zur Bildung der Blendenflecke 9 abgedunkelt werden. Da die CCD-Sensorkamera der Ortungseimichtung 3 so ausgelegt ist, daß zu- sätzlich die Form und Größe der Scheinwerfer 11 erfaßt wird, sind auch die Blendenflecke 9 entsprechend in Form und Größe angelegt.On the basis of the calculated penetration points 14, the computing and control device 2 controls the liquid crystal matrix arrangement via the driver stage 8 in such a way that the corresponding LCD matrix elements for forming the aperture spots 9 are darkened around the penetration points 14. Since the CCD sensor camera of the locating device 3 is designed in such a way that the shape and size of the headlights 11 is also detected, the lens flares 9 are also correspondingly designed in terms of shape and size.
Schließlich ist in der Augenschutzvorrichtung 1 noch eine Helligkeits- meßeimichtung 15 vorgesehen, die die Umgebungshelligkeit bestimmt. Aufgrund der entsprechenden Meßdaten, die ebenfalls an die zentrale Rechen- und Steuereinrichtung 2 gegeben werden, kann unter Einbeziehung der Daten der Ortungseimichtung und der gespeicherten Daten über Blendempfindlichkeit und Adaptionsgeschwindigkeit des Fahrers das zur Erzielung einer ausreichenden Blendschutzwirkung notwendige Transpa- renzmaß des Blendenfleckes 9 bestimmt und der Blendenträger 5 entsprechend angesteuert werden. In der Praxis bedeutet dies, daß bei einem am Tage mit Licht fahrenden entgegenkommenden Fahrzeug, das praktisch keine Blendwirkung auf den Fahrer ausübt, kein Blendenfleck erzeugt wird. In der Dämmerung, wo nur ein geringer Blendeffekt zu erwarten ist, wird die Flüssigkristall-Matrixanordnung so angesteuert, daß im Bereich des Blendenfleckes die Transmission nur geringfügig herabgesetzt wird. Bei Nacht kann die Blendenfleck-Transmission auf praktisch Null heruntergeregelt werden.
Wie aus dem Vorstehenden erkennbar ist, wird durch die erfindungsgemäße Augenschutzvoirichtung genau der Bereich der Windschutzscheibe dynamisch abgedunkelt, hinter dem sich die Scheinwerfer eines entgegen- kommenden Fahrzeuges befinden. Insoweit wird der Fahrer 10 wirkungsvoll vor Blendwirkungen des Gegenverkehrs geschützt. Trotzdem bleibt praktisch der gesamte Bereich der Windschutzscheibe in seiner Transmission unbeeinträchtigt, wodurch die Nachtsichteigenschaften durch die Windschutzscheibe praktisch nicht verschlechtert, sondern sogar erheblich verbessert werden.Finally, a brightness measuring device 15 is provided in the eye protection device 1, which determines the ambient brightness. Based on the corresponding measurement data, which are also given to the central computing and control device 2, the transparency of the lens flare 9, which is necessary to achieve a sufficient anti-glare effect, can be determined and taken into account, including the data of the location device and the stored data on glare sensitivity and adaptation speed of the driver the aperture support 5 can be controlled accordingly. In practice, this means that in an oncoming vehicle traveling in the daytime with light that has practically no glare on the driver, no lens flare is generated. At dusk, when only a slight glare is to be expected, the liquid crystal matrix arrangement is controlled in such a way that the transmission is only slightly reduced in the area of the lens flare. At night, the lens flare transmission can be reduced to practically zero. As can be seen from the above, the eye protection device according to the invention dynamically darkens exactly the area of the windshield behind which the headlights of an oncoming vehicle are located. To this extent, the driver 10 is effectively protected against the dazzling effects of oncoming traffic. In spite of this, practically the entire area of the windshield remains unimpaired in its transmission, whereby the night vision properties through the windshield practically do not deteriorate, but are even improved considerably.
Als weitere Blendschutzmaßnahme, die mit dem vorstehenden Erfmdungs- gegenstand erzielbar ist, kann im Zusammenhang mit der Helligkeits- meßeinrichtung 15 vorgesehen werden, daß bei sehr hoher Umgebungshel- ligkeit, wie z. B. bei Fahrten auf Küstenstraßen unter Sonneneinstrahlung, der Blendenträger 5 auf seiner gesamten Fläche durch Herabsetzung seines Transparenzmaßes abgeblendet wird.As a further anti-glare measure, which can be achieved with the above subject matter, it can be provided in connection with the brightness measuring device 15 that with very high ambient brightness, such as, for example, B. when driving on coastal roads under sunlight, the aperture support 5 is dimmed on its entire surface by reducing its degree of transparency.
Wie als konkretes Ausführungsbeispiel nicht gezeigt ist, kann eine erfϊn- dungsgemäße Augenschutzvoirichtung auch bei einem Motoiradhelm eingesetzt werden, wobei dann der Blendenträger in das Visier integriert ist. Auch ist der Einsatz der Vomchtung in einer Schutzbrille, wie z. B. einer Laserschutzbrille, oder bei einem Schweißervisier möglich. Nicht zuletzt kann der Blendenträger auch in einen selbständigen Schirm integriert wer- den, der im Raum vor der zu schützenden Person positionierbar ist. Wie bei allen anderen Ausführungsformen des Blendenträgers kann die optisch aktive Lage oder Schicht im Volumen des flächigen Trägers oder auf dessen Oberfläche angebracht sein.
As is not shown as a specific exemplary embodiment, an eye protection device according to the invention can also be used with a motorcycle helmet, in which case the panel support is integrated into the visor. The use of the device in protective glasses, such as. B. a pair of laser safety glasses, or with a welding visor. Last but not least, the panel support can also be integrated into an independent screen that can be positioned in the room in front of the person to be protected. As with all other embodiments of the diaphragm support, the optically active layer or layer can be applied in the volume of the flat support or on its surface.
Claims
1. Augenschutzvoirichtung gegen von mindestens einer Strahlungsquelle einfallende Strahlung, insbesondere Blendschutzvoirichtung zum Ein- satz in Fahrzeugen, Motoiradhelmen, Brillen und dergleichen, mit1. Eye protection device against radiation incident from at least one radiation source, in particular glare protection device for use in vehicles, motorcycle helmets, glasses and the like
- einer Ortungseinrichtung (3) zur laufenden dynamischen Erfassung der Position der mindestens einen Strahlungsquelle (11),- a locating device (3) for continuously dynamic detection of the position of the at least one radiation source (11),
- einer Augenpositions-Erfassungsei ichtung (4) zur Bestimmung der Position und/oder der Blickrichtung der zu schützenden Au- gen (12),an eye position detection device (4) for determining the position and / or the viewing direction of the eyes (12) to be protected,
- einem transparenten, flächigen Blendenträger (5) vor den zu schützenden Augen ( 12), auf dem zeitlich und örtlich variabel mindestens ein die Strahlung absorbierender oder reflektierender Blendenfleck (9) mit verminderter Transparenz erzeugbar ist, und - einer mit der Ortungs- und der Augenpositions-- A transparent, flat diaphragm support (5) in front of the eyes (12) to be protected, on which at least one radiation-absorbing or reflecting diaphragm spot (9) with reduced transparency can be generated in a temporally and spatially variable manner, and - one with the location and eye position
Erfassungseimichtung (3, 4) sowie dem Blendenträger (5) gekoppelten Rechen- und Steuereimichtung (2), die aus der von der Ortungseinrichtung (3) laufend erfaßten Position der mindestens einen Strahlungsquelle (11) und der von der Erfassungseinrich- tung (4) laufend bestimmten Position der zu schützenden AugenDetection device (3, 4) as well as the computing and control device (2) coupled to the aperture support (5), which device detects the position of the at least one radiation source (11) and the detection device (4) from the position continuously detected by the locating device (3). continuously determined position of the eyes to be protected
(12) die geometrischen Verbindungskoordinaten (13) zwischen Augen (12) und der mindestens einen Strahlungsquelle (11) und deren Durchstoßkoordinaten (14) durch den Blendenträger (5) laufend berechnet und im Bereich der jeweils berechneten Durch - Stoßkoordinaten ( 14) durch entsprechende Ansteuerung des Blendenträgers (5) den (die) Blendenfleck(en) (9) erzeugt. (12) the geometric connection coordinates (13) between eyes (12) and the at least one radiation source (11) and their penetration coordinates (14) are continuously calculated by the aperture support (5) and in the area of the respectively calculated through - impact coordinates (14) by corresponding ones Actuation of the aperture support (5) generates the lens flare (s) (9).
2. Schutzvoπichtung nach Anspmch 1, dadurch gekennzeichnet, daß die Ortungseimichtung (3) derart ausgelegt ist, daß zusätzlich Form, Blendqualität und/oder Größe der Strahlungsquelle (11) erfaßbar sind.2. Schutzvoπichtung according Anspmch 1, characterized in that the locating device (3) is designed such that in addition shape, glare quality and / or size of the radiation source (11) can be detected.
3. SchutzvoiTichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Ortungseinrichtung (3) durch ein Kamerasystem gebildet ist.3. SchutzvoiTichtung according to claim 1 or 2, characterized in that the locating device (3) is formed by a camera system.
4. SchutzvoiTichtung nach Anspruch 3, dadurch gekennzeichnet, daß das Kamerasystem einen CCD-Sensor umfaßt.4. SchutzvoiTichtung according to claim 3, characterized in that the camera system comprises a CCD sensor.
5. SchutzvoiTichtung nach einem der Anspräche 1 bis 4, dadurch gekennzeichnet, daß die Augenpositions-Erfassungseimichtung (4) durch ein Eye-Tracking-System gebildet ist, mit dem die Position der Augen (12) selbst oder zumindest die Kopfposition der entsprechen- den Person (10) erfaßbar sind.5. SchutzvoiSichtung according to one of claims 1 to 4, characterized in that the eye position detection device (4) is formed by an eye tracking system with which the position of the eyes (12) themselves or at least the head position of the corresponding Person (10) can be detected.
6. Schutzvoπichtung nach einem der Anspräche 1 bis 5, dadurch gekennzeichnet, daß der Blendenträger (5) eine transparente Flüssigkri- stall-Matrixanordnung aufweist, in der von der Rechen- und Steuerein- richtung (2) gesteuert in definierten Flächenbereichen des Blendenträgers (5) dessen Transparenz zur Erzielung des Blendenfleckes (9) herabsetzbar ist.6. Protection device according to one of the claims 1 to 5, characterized in that the aperture support (5) has a transparent liquid crystal matrix arrangement in which the computing and control device (2) controls in defined surface areas of the aperture support (5th ) whose transparency can be reduced to achieve the lens flare (9).
7. SchutzvoiTichtung nach einem der Ansprüche 1 bis 6, dadurch ge- kennzeichnet, daß eine Helligkeitsmeßeinrichtung (15) zur Bestimmung der Umgebungshelligkeit vorgesehen ist, wobei die Rechen- und Steuereinrichtung (2) aus den Daten der Ortungseimichtung (3) und der Helligkeitsmeßeimϊchtung (15) das zur Erzielung einer Blend- schutzwirkung notwendige Transparenzmaß des Blendenfleckes (9) bestimmt und den Blendenträger (5) entsprechend ansteuert.7. SchutzvoiTichtung according to any one of claims 1 to 6, characterized in that a brightness measuring device (15) is provided for determining the ambient brightness, the computing and control device (2) from the data of the locating device (3) and the brightness measuring device ( 15) that to achieve a glare protective effect necessary transparency measure of the lens flare (9) determined and controls the aperture support (5) accordingly.
8. SchutzvoiTichtung nach einem der Anspräche 1 bis 7, dadurch ge- kennzeichnet, daß der Blendenträger (5) in eine Fahrzeugwindschutz- scheibe (6) oder ein Visier integriert ist.8. Protective void seal according to one of claims 1 to 7, characterized in that the panel carrier (5) is integrated in a vehicle windshield (6) or a visor.
9. SchutzvoiTichtung nach einem der Anspräche 1 bis 7, dadurch gekennzeichnet, daß der Blendenträger (5) in eine Brille, insbesondere eine Schutzbrille integriert ist.9. SchutzvoiTichtung according to any one of claims 1 to 7, characterized in that the diaphragm support (5) is integrated into glasses, in particular safety glasses.
10. SchutzvoiTichtung nach einem der Anspräche 1 bis 7, dadurch gekennzeichnet, daß der Blendenträger (5) in einen vor der zu schützenden Person (10) im Raum positionierbaren Schirm integriert ist.10. SchutzvoiTichtung according to any one of claims 1 to 7, characterized in that the diaphragm support (5) is integrated in a shield positioned in front of the person to be protected (10) in the room.
11. SchutzvoiTichtung nach einem der Anspräche 1 bis 7, dadurch gekennzeichnet, daß der Blendenträger (5) auf seiner gesamten Fläche abblendbar ist. 11. SchutzvoiTichtung according to any one of claims 1 to 7, characterized in that the panel support (5) is dimmable on its entire surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19933397.1 | 1999-07-21 | ||
| DE1999133397 DE19933397A1 (en) | 1999-07-21 | 1999-07-21 | System for protection of eyes against glare has a screen of variable transparency controlled by a computer according to data from units to identify the location of the light source and the eyes and line of sight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2001007276A1 true WO2001007276A1 (en) | 2001-02-01 |
Family
ID=7915020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2000/002356 WO2001007276A1 (en) | 1999-07-21 | 2000-07-19 | Eye protecting device |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE19933397A1 (en) |
| WO (1) | WO2001007276A1 (en) |
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| DE102005015960A1 (en) * | 2005-04-07 | 2006-10-12 | Bayerische Motoren Werke Ag | Glare shield for installation to front windshield of motor vehicle, darkens or opaques one of square segments in front windshield according to presence of sunlight and line of sight of vehicle driver |
| WO2015169018A1 (en) * | 2014-05-04 | 2015-11-12 | 京东方科技集团股份有限公司 | Transparent display system and device provided with transparent display system |
| CN108162729A (en) * | 2017-12-14 | 2018-06-15 | 昆山龙腾光电有限公司 | A kind of automobile anti-glare system and method |
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| JP4469839B2 (en) * | 2003-08-04 | 2010-06-02 | 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 | Anti-glare system for vehicles |
| DE102004007521A1 (en) * | 2003-08-04 | 2005-02-24 | Robert Bosch Gmbh | Glare protection system for a vehicle |
| DE102005045436A1 (en) * | 2005-09-23 | 2007-03-29 | Robert Bosch Gmbh | Glare protection system |
| DE102011016652A1 (en) * | 2011-04-09 | 2012-10-11 | Conti Temic Microelectronic Gmbh | Device for motor vehicle for preventing glaring of one or more vehicle occupants by sun, has sensor unit for determining vehicle environment, evaluation unit for processing data of sensor unit, and component for preventing glaring |
| JP2015063189A (en) * | 2013-09-24 | 2015-04-09 | トヨタ自動車株式会社 | Automatic anti-glare device |
| JP2015063190A (en) * | 2013-09-24 | 2015-04-09 | トヨタ自動車株式会社 | Automatic anti-glare device |
| DE102014100672A1 (en) | 2014-01-22 | 2015-07-23 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Attention control method and apparatus |
| WO2015128158A1 (en) | 2014-02-25 | 2015-09-03 | Bayerische Motoren Werke Aktiengesellschaft | Sun shield |
| DE102014203320B4 (en) * | 2014-02-25 | 2022-09-01 | Bayerische Motoren Werke Aktiengesellschaft | sun visor |
| DE102014013584B4 (en) * | 2014-09-13 | 2017-05-18 | Audi Ag | Method for illuminating a surrounding area of a motor vehicle and motor vehicle |
| CN106080136B (en) * | 2016-06-30 | 2020-02-21 | 联想(北京)有限公司 | Incident light intensity control method and device |
| CN108312968B (en) * | 2018-02-06 | 2022-03-29 | 温州智享知识产权顾问有限责任公司 | Vehicle-mounted high beam weakening system |
| DE102018216562A1 (en) * | 2018-09-27 | 2020-04-02 | Conti Temic Microelectronic Gmbh | Method for detecting light conditions in a vehicle |
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Also Published As
| Publication number | Publication date |
|---|---|
| DE19933397A1 (en) | 2001-01-25 |
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