WO2017207185A1

WO2017207185A1 - Method for adjusting a light distribution of a lighting device, lighting device, detection device, and vehicle

Info

Publication number: WO2017207185A1
Application number: PCT/EP2017/060068
Authority: WO
Inventors: Martin Brueckel; Stephan Schwaiger; Krister Bergenek
Original assignee: Osram Gmbh
Priority date: 2016-05-30
Filing date: 2017-04-27
Publication date: 2017-12-07
Also published as: DE102016209290A1

Abstract

The invention relates to a method for adjusting a light distribution of a lighting device (2), comprising the steps: emitting a respective radiation by means of at least two light sources (4a-4d) of the lighting device (2) in order to generate the light distribution in an environment (3) of the lighting device (2), wherein radiations (5a-5d) which can be differentiated from each other are emitted by the at least two light sources (4a-4d), recognizing at least one of the emitted radiations (5a-5d) by means of a detection device (2) arranged in the environment (3) of the lighting device (2), identifying a control signal by means of the detection device (9), wherein the control signal describes the at least one recognized radiation (5a-5d), transferring the control signal from the detection device (9) to the lighting device (2) and adjusting a parameter of the at least one recognized radiation (5a-5d) in dependence on the control signal.

Description

METHOD FOR ADJUSTING A LIGHT DISTRIBUTION OF A LIGHTING DEVICE, LIGHTING DEVICE,

DETECTION DEVICE AND VEHICLE DESCRIPTION

The present invention relates to a method for adjusting a light distribution of a lighting device. Moreover, the present invention relates to a

Lighting device. Furthermore, the concerns

present invention, a detection device. Finally, the present invention relates to a vehicle.

The interest is in the present case

Lighting devices with which a light distribution can be provided and which can have a plurality of light sources. Such lighting devices can be used for example in vehicles, in which case the light sources in the headlights of the vehicle

can be arranged. Especially in the automotive sector, different designs of headlamps and their light sources are known. For example, halogen lamps or discharge lamps can be used as light sources in headlamps. In addition, from the state of the

Technique light sources known which comprise a plurality of light-emitting diodes. In current applications, for example, light sources are used which comprise a multiplicity of light-emitting diodes which can be controlled individually or in groups. In addition, headlamps are known in which organic light emitting diodes are used as the light source.

These serve, for example, to provide a daytime running light or the function of a direction indicator.

In addition, headlamps are known which

Include laser light sources. These laser light sources can emit light in the blue wavelength range, for example. This blue light is then emitted by means of a corresponding transducer element, for example a cerium-YAG Conversion element, in light having a second wavelength, for example light in the yellow wavelength range,

changed. This conversion element can also as

Be designated phosphor. The superimposition of the blue laser light with the yellow conversion radiation then produces white useful light. Such lighting devices are also called LARP (Laser Activated Remote

Phosphorus) known. Furthermore, "white" LEDs are used in the automotive industry, which typically also operate on this principle or a conversion element

include. In addition, will also headlights

used in which laser light sources are combined with light-emitting diodes. Modern headlamps include a plurality of light sources that can be driven independently or in groups. In this way can be different

Light distributions, such as a dipped beam, a high beam or the like can be provided. In addition, depending on the driving situation of the

Vehicle by the control of the light sources

different light distributions are possible. In addition, applications are known in which, for example with a camera other road users and / or

Traffic signs and / or traffic obstructions are detected and the light distribution is adjusted depending on the detected road users or traffic objects. Thus, it is possible, for example, to provide a so-called glare-free high beam. This raises the problem that several road users,

For example, oncoming and preceding vehicles, must be reliably detected and the light distribution must be adjusted within a short period of time, so that glare of the other road users is prevented. In addition, corresponding sensors, such as cameras, necessary to the other

Reliably recognize road users. It is an object of the present invention to provide a solution, such as a light distribution of a

Lighting device can be reliably and effectively adapted to the environment to be illuminated.

This object is achieved by a method by a lighting device by a

Detecting device as well as by a vehicle with the

Characteristics solved according to the respective independent claims. Advantageous developments of the present

Invention are the subject of the dependent claims.

An inventive method for adjusting a

Light distribution of a lighting device comprises the emission of a respective radiation with at least two

Light sources of the lighting device for generating the light distribution in an environment of

Lighting device. In this case, with the at least two light sources distinguishable from each other radiations

sent out. In addition, the method includes the

Detecting at least one of the emitted radiation by means of a detection device arranged in the surroundings of the illumination device. Furthermore, the method includes determining a control signal by means of the detection device, wherein the control signal describes the at least one detected radiation. Furthermore, the method includes transmitting the control signal from the

Detecting device to the lighting device and adjusting a parameter of at least one detected

Radiation in response to the control signal.

In the present case, a light distribution of a

Lighting device to be adjusted. Such

Lighting device can be used for example in a vehicle. Alternatively, the

Lighting device to be arranged in a stationary device. The illumination device comprises the at least two light sources, each of which has radiation send out and thus generate the light distribution in the environment. In this way, at least areas of the surroundings of the lighting device can be illuminated. It is provided in particular that the at least two

Light sources can be controlled independently. For example, a first light source can be provided which emits a first radiation. Furthermore, can

at least one second light source may be provided which emits a second radiation different from the first radiation. The respective radiations of the at least two

Light sources are thus in particular clearly distinguishable from each other. It can be provided, for example, that the respective radiation is emitted in such a way that it comprises a corresponding identifier or identification.

According to the invention, it is now provided that at least one of these radiations is detected or detected by a detection device, wherein the detection device is located in the surroundings of the illumination device. In this case, it is provided in particular that the detection device is illuminated at least in regions with the illumination device or with the at least two light sources. It can be provided that the detection device is illuminated at least indirectly with the at least two light sources. The detection device can

for example, directly with at least one of the two

Light sources are illuminated. The radiation emitted by at least one of the light sources can also be at a

Object, for example, on a sign or traffic sign, are reflected and then get to the detection device. The detection device can now recognize in particular which of the mutually distinguishable radiations of the light sources the detection device or a

Sensor device of the detection device illuminated.

In addition, the detection device is designed to detect the distinguishable radiations of the light sources. With the aid of the detection device, it is now possible to determine whether these are from the first and / or the first illuminated second radiation or whether they recognize the first and / or the second radiation.

Furthermore, with the detection device, a control signal can be generated which contains the at least one radiation

describes, which was recognized by her. This control signal is now from the detection device to the

Lighting device preferably transmitted wirelessly.

After the lighting device, the control signal

it may then adjust a parameter of the at least one radiation described in the control signal. In this case, provision is made in particular for the intensity of the at least one radiation to be adjusted as the parameter. For example, the at least one

Light source, with which at least one detected radiation is emitted, are dimmed accordingly. It can also be provided that this light source is turned off. In addition, provision may be made for the modulation parameter or the light color of the at least one radiation to be adjusted as the parameter. Thus, for the first time

Information is used by the object itself, which is illuminated by the lighting device and which comprises the detection device to adjust the light distribution of the lighting device. Thus, it is not necessary that the illuminated object is detected by a corresponding sensor of the lighting device itself in the environment and the light distribution is then adjusted accordingly. With the help of

Detecting device, which the illuminated object

is assigned, it can now be precisely determined with which light source of the lighting device is illuminated. By the transmission of the control signal from the

Detecting device to the lighting device can now be transmitted information such as

Light sources that illuminate the object to be adjusted. This makes it possible to adapt the light distribution, which can be adapted reliably and precisely as a function of the illuminated object. Preferably, the radiations, which are emitted with the at least two light sources, one each

predetermined pulse sequence, wherein a pulse duration, and / or a frequency and / or a phase position of

Pulse sequences of the respective radiations differs.

For example, the respective light sources with

periodic signals or pulse sequences are applied. In particular, it is provided that the respective

Light sources for emitting the radiation with a

Pulse width modulation can be operated. To each other

To provide distinguishable radiations, the respective radiations can by different

pulse width modulated signals are controlled. The

Pulse width modulated signals with which the light sources are driven, can be in terms of their

Pulse durations, their frequencies and / or their phase angles differ from each other. It can also be provided that the pulse width modulation of a carrier frequency, ie

for example, the actual intensity-regulating

pulse width modulated operating frequency of the light source

is modulated and thus does not contribute to the actual light function of the lighting device. Alternatively, the modulation frequency may also be formed as part of the light function. In particular, the frequencies are the

Pulse sequences determined so that they are not visible to the human eye. For example, the frequencies may be greater than 100 Hz, preferably greater than 200 Hz, in particular greater than 400 Hz, particularly preferably greater than 600 Hz. It can also be provided that the frequencies are in the kHz range or in the MHz range. The modulated frequencies can also change over time, but can each be stored in a look-up table and thus be clearly attributable to a specific time window or a light source. The frequencies of the pulse sequences can also be adapted to the application of the lighting device. Thus, distinguishable radiations can be provided in a simple and reliable manner. Furthermore, it is advantageous if, for detecting the radiation, the pulse sequence of the radiation and / or a frequency of the

Pulse sequence is determined by means of the detection device. The detection device may, for example, a

corresponding sensor device, in particular an optical sensor or a camera, with which the pulse sequence of the radiation can be detected. For example, by means of the sensor device of the detection device, the frequency and / or the pulse duration or the duty cycle of the

Pulse width modulated signal are detected, which is contained in the radiation. In order to detect the frequency of the radiation or the pulse sequence, it is provided in particular that a Fourier analysis of the sensor signal of

Sensor device is performed. In other words, the frequency spectrum of the sensor signal can be determined. Thus, the frequency of the radiation can be determined in a simple manner. This makes it possible to reliably determine which radiation the detection device or the

Sensor device of the detection device illuminated.

In a further embodiment, by means of

Lighting device determines the pulse sequence of the at least one detected radiation based on the control signal, based on the specific pulse sequence, the light source by which the detected radiation was emitted detected and the detected light source is to adjust the parameter, in particular the intensity of the detected radiation

driven. On the basis of the control signal, which the lighting device of the detection device

receives, receives this information to the recognized

Radiation or the detected pulse sequence. Based on this information, the lighting device can then

Associate detected radiation of the light source, by means of which this was sent. For example, the information which pulse sequence is transmitted with which light source can be stored in a corresponding look-up table.

As a result, then that light source, by means of which the detected radiation is emitted, are driven accordingly. In this way, the parameter and in particular the intensity of the detected radiation can be adjusted.

Furthermore, it is advantageous if by means of

Detection device, an intensity of the detected radiation is determined and compared with a predetermined threshold. In addition to the detection or

Identification of the respective radiations can the

Detecting device also determine an intensity of the detected radiation. Thus, it can be determined, for example, whether glare is generated by the respective radiations emitted by the light sources. For example, the detection device, a

Have appropriate sensor with which the brightness and in particular the brightness per unit area times duration can be determined. When the detection device

For example, a person is assigned, can be determined in a simple and reliable way, whether the person is blinded by the respective radiation of the light sources.

In a further embodiment, the control signal is determined such that the control signal describes a desired intensity for the detected radiation and the intensity of the

detected radiation is adjusted depending on the desired intensity. For example, if glare is detected by the radiation, using the

Detection device, a desired intensity for the detected radiation can be determined. In particular, the desired intensity can be determined such that a glare of a person associated with the detection device is omitted. This information about the target intensity can be found in the

Control signal, which is determined with the detection device to be included. The lighting device, which then receives the control signal, the intensity of the

Light source, with which the detected radiation is emitted, adapt to the target intensity. In particular, the Lighting device adjust the intensity of the light source so that the intensity of the target intensity corresponds. Thus, for example, glare can be prevented by the detected radiation in a simple and reliable manner.

Preferably, the control signal is transmitted wirelessly and / or optically from the detection device to the illumination device. The detection device may, for example, comprise a corresponding transmission unit, by means of which the control signal is transmitted. The lighting device may include a corresponding receiving device, by means of which the emitted control signal can be received. In this case, the control signal via WLAN, mobile, Bluetooth, vehicle-to-vehicle communication or the like

be transmitted. Alternatively, the control signal may be optically transmitted from the detection device to the

Be transmitted lighting device. For this purpose, with the transmitting device of the detection device, a correspondingly modulated light signal to the

Receiving device of the lighting device to be transmitted. In this case, it is provided in particular that

Control signal is optically transmitted in the infrared wavelength range. As a result, persons are not disturbed by the optical data transmission. In addition, that can

Control signal wirelessly or optically transmitted within a short period of time.

A lighting device according to the invention comprises

at least two light sources adapted to provide a light distribution in the environment of

Lighting device in each case to emit radiation, wherein the radiation of the at least two light sources

distinguishable from each other. In addition, the lighting device comprises a receiving device for

Receiving a control signal from an external

Detection device, wherein the control signal describes the at least one of the radiations. Finally, the lighting device comprises a control device for adjusting a parameter of the at least one described radiation in dependence on the control signal.

The at least two light sources preferably each comprise at least one light-emitting diode, at least one laser light source, at least one transducer element with a conversion dye and / or at least one organic light-emitting diode. The

Lighting device may preferably in a vehicle, such as a passenger car, a

Lorries, a commercial vehicle or a motorcycle, are used. In this case, the at least two light sources can be one or both headlamps of the

Vehicle assigned. When the lighting device is used in a vehicle, it is provided, in particular, that it comprises a plurality of light sources which can be controlled separately from one another. In this case, each of the light sources may comprise at least one light-emitting diode. It can also be provided that each of the

Light sources comprises a plurality of light-emitting diodes.

For example, the lighting device may then comprise several tens or several hundred light sources. If the respective light sources comprise light-emitting diodes, these can be arranged on one or more printed circuit boards. It can also be provided that the respective light sources at least one laser light source and an associated

Have transducer element. For example, with the

Laser light source Light in the blue wavelength range

to be sent out. This light in the blue

Wavelength range can then be converted by means of the associated transducer element in light in the yellow wavelength range. Due to the overlay of the blue

Laser light with the yellow conversion radiation can then yield white useful light. It can also be provided that the lighting device light sources, as

Light emitting diodes are formed, and light sources as laser light sources with associated transducer element

are formed comprises. Furthermore, it can be provided in that the illumination device comprises light sources which are designed as organic light-emitting diodes.

A detection device according to the invention comprises a sensor device for detecting at least one radiation of a light distribution. In addition, the includes

Detection device, a computing device for determining a control signal, which describes the at least one detected radiation. Finally, the includes

Detecting device, a transmitting device for transmitting the control signal.

According to one embodiment, a system is provided which comprises the lighting device and the

Detecting device, wherein the system for

Performing a method according to the invention or an advantageous embodiment thereof is formed.

A vehicle according to the invention comprises a lighting device according to the invention and / or an inventive lighting device

Detection device. As already explained, the

Lighting device advantageously be used in a vehicle, in particular in a passenger car. The vehicle may also be an aircraft, a ship, a rail vehicle or a ship

act like that. These are at least two

Light sources of the lighting device preferably in

arranged at least one headlight of the motor vehicle. As already explained, the at least two light sources can be modulated with different frequencies. In this case, the frequencies may be adapted depending on the vehicle and in particular depending on the type of vehicle. For example, passenger cars, trucks and motorcycles each have different ones

Be assigned to frequencies or frequency ranges. It can also be provided that the frequency is adjusted as a function of the current speed of the vehicle. It can also be provided that the inventive

Detection device is arranged in a vehicle. In this case, the sensor device of the detection device is preferably designed to detect the at least one radiation in a region which is associated with the eyes of a driver and / or a passenger of the motor vehicle. In this case, the sensor device can be arranged, for example, in the interior or outside of the motor vehicle, and be designed to detect radiation which strikes the eyes of the driver and / or the passenger of the vehicle. The sensor device can also consist of several individual sensors, which are arranged at a distance from each other. It can also be provided that the sensor device is formed by a corresponding data glasses, which is carried by the driver of the motor vehicle. It can also

be provided that as the sensor device a

Data glasses worn by the passenger and / or the passenger of the motor vehicle is used. In particular, the sensor device can be designed to have a

Determine the intensity of the detected radiation and thus dazzle the driver and / or the passenger

detect. If this glare has been detected, this can

Control signal are transmitted to the lighting device, as a result of which it can adjust or reduce the intensity of the detected radiation accordingly. If the detection device is arranged in a vehicle, it can be provided in particular that the

Transmission device of the detection device, the control signal to the receiving device of the optically

Lighting device transmits. In this case, a headlight of the vehicle can be used to

To send control signal visually. It can also be provided that the detection device detects the radiations of different illumination devices and respective control signals to the different

Lights out. If the lighting device is arranged in a vehicle and the detection device is arranged in another vehicle, it can be easily prevented that a driver of the vehicle in which the

Detecting device is arranged is blinded. It can also be provided that a first vehicle comprises both the lighting device and the detection device and a second vehicle both the lighting device and the detection device. In principle, it is also conceivable that a vehicle which the

Lighting device comprises, control signals from a plurality of vehicles, each having a detection device

include, receives. In addition, an application

conceivable in which by means of corresponding sensors of the vehicles an impending collision between the vehicles is detected. In this case, with the

Detection device then generates a control signal, by which the intensity of the detected radiation is increased. Alternatively, the intensity can be adjusted so that its light distribution is generated in the manner of a flashing light. This allows, for example, a

Reliable avoidance of collisions.

The detection device can also be used in a mobile

Device can be arranged. This mobile device may be carried, for example, by a pedestrian or cyclist. In this case, the detection device may be formed by a data glasses or a data glasses

include.

In another embodiment, the invention may include a device that includes the lighting device. In particular, the device is a stationary device, such as a traffic light, a street lamp, a lighthouse or a light buoy. Again, it may be provided that the frequencies at which the at least two light sources are operated, are determined depending on the type of device. at the use of the lighting device in a device, it may be provided that, for example, when using the detection device, which may be arranged in particular in a vehicle, the at least one radiation of the illumination device is detected, the control signal is determined so that the intensity of the detected radiation increases becomes. Thus, the luminous level of the

Lighting device can be increased. This is suitable, for example, when the lighting device is arranged in a lighthouse. In this case, the intensity of the detected radiation can also be adjusted so that it changes, for example, periodically. Thus, a

Be provided light distribution in the manner of a flashing light, through which the attention can be increased.

In principle, it can also be provided that the

Lighting device is arranged in two different vehicles or two different devices.

For example, the first light source in a first vehicle or a first device and the second

Be arranged light source in a second vehicle or a second device. In this case, a common or higher-level receiving device and / or control device can then be provided for both vehicles or devices.

The method can also be applied analogously to a driverless transmitting vehicle or a driverless receiving vehicle. For several oncoming vehicles, the vehicles can be a constant mutual distance measurement

Perform this parameter and the control signals

Add. The vehicles can also each several

Have sensors so that triangulation can be done. Alternatively or additionally, each vehicle may have a, e.g. factory set, detection frequency assigned, which together with the control signal or separated from

Control signal is transmitted. Thus, each one can Sender vehicle oncoming recipient vehicle can be uniquely identified.

Further features of the invention will become apparent from the

Claims, the figures and the description of the figures. The features mentioned above in the description and

Feature combinations and the following in the

Description of figures mentioned and / or shown alone in the figures features and combinations of features can be used not only in the specified combination, but also in other combinations or alone, without departing from the scope of the invention.

The invention will now be described by way of preferred

Embodiments and with reference to the

attached drawings explained in more detail. This show a first vehicle, which a

Lighting device comprises and a second vehicle, which comprises a detection device; a schematic representation of each

Radiations emitted by light sources of the illumination device; a schematic representation of each

Pulse sequences of the radiations according to FIG. 2; and a schematic flow diagram of a method for adjusting a light distribution of

Survey device.

In the figures, identical and functionally identical elements are provided with the same reference numerals.

Fig. 1 shows a first vehicle 1 in a plan view. The first vehicle 1 is present as a passenger car educated. The first vehicle 1 includes a

Lighting device 2, by means of which a

Light distribution in an environment 3 of the first vehicle 1 can be generated. The lighting device 2 comprises at least two light sources 4a, 4b, 4c and 4d, with which in each case a radiation 5a, 5b, 5c and 5d can be emitted (see FIG. 2). By the respective radiation 5a to 5d, the light distribution is formed. The light sources 4 a to 4 d not shown in detail in FIG. 1 are presently arranged in one of the headlights 6 of the first vehicle 1.

In addition, the lighting device 2 comprises a control device 7, by means of which the light sources 4a to 4d can be controlled independently of each other. Furthermore, the lighting device 2 comprises a

Receiving device 8, by means of which a control signal can be received. This control signal can then be transmitted from the receiving device 8 to the control device 7, and thus the light sources 4a to 4d are controlled in dependence on the received control signal.

In the environment 3 of the first vehicle 1 is a second vehicle 1 ', which in opposite

Direction of travel is moved to the first vehicle 1 and moves toward the first vehicle 1. In this case, the second vehicle 1 'by the light distribution of

Illuminated lighting device 2 of the first vehicle 1. The second vehicle 1 'comprises a detection device 9, which in turn comprises a sensor device 10. The

In the present case, sensor device 10 is designed such that a detection range of sensor device 10 is assigned to the eyes of a driver of second vehicle 1 '. With the aid of the sensor device 10, radiation in the area of the eyes of the driver of the second vehicle 1 'can be detected. The sensor device 10 may, for example, by a

Camera, which is arranged on the windshield of the second vehicle 1 'in the eyes of the driver. The sensor device 10 can also by a Data glasses worn by the driver may be provided.

By means of the sensor device 10, at least some of the radiations 5a to 5d, which are emitted with the light sources 4a to 4d, can be detected. Depending on the detected radiation 5a to 5d can then by means of a computing device 11 of the detection device 9 a

Control signal are generated. It describes that

Control signal the detected radiation 5a to 5d. This control signal can be transmitted wirelessly to the receiving device 8 of the lighting device 2 of the first vehicle 1 by means of a transmitting device 12 of the detection device 9

be transmitted.

When the lighting device 2 of the first vehicle 1 has received the control signal, it can be detected by the

Receiving device 8 are transmitted to the control device 7. The control device 7 may be based on the

Control signal from which of the light sources 4a to 4d, the radiation comes from 5a to 5d, from the

Sensor device 10 has been detected. Depending on the control signal, the respective light source 4a to 4d can then be activated, and thus the intensity of the radiation 5a to 5d can be adjusted.

FIG. 2 shows a schematic representation of the light sources 4a to 4d of the illumination device 2, from each of which a radiation 5a to 5d is emitted. In the present case, four light sources 4a to 4d are shown purely by way of example. It is provided in particular that the lighting device 2 may comprise a plurality, for example several hundred light sources 4a to 4d, which can be controlled separately from one another. The respective light sources 4a to 4d can be controlled by means of the control device 7.

Specifically, the respective light sources 4a to 4d are driven by the controller 7 by a respective one

Pulse sequence 6a to 6d activated. The respective light sources 4a to 4d are thus driven by a pulse width modulated signal. These pulse sequences 6a to 6d are then also contained in the respective radiations 5a to 5d. As can be seen in FIG. 3, the pulse sequences 6a to 6d differ by their respective pulse durations. In particular it is

provided that the pulse sequences 6a to 6d also differ with respect to their frequency.

By means of the detection device 9 of the second vehicle 1 'is to be detected in particular a glare, which is caused by the light sources 4a to 4d of the lighting device 2 of the first vehicle 1. The sensor device 10 is designed to receive the respective radiation 5a to 5d from at least some of the light sources 4a to 4d. As already explained, the sensor device 10 is arranged such that it can detect a possible glare of the driver of the second vehicle 1 '. The sensor device 10 is also designed to detect the respective pulse trains 6a to 6d in the radiations 5a to 5d. In other words, by means of the sensor device 10 a

Pulse width modulation of those radiation can be detected 5a to 5d, by which a glare of the driver can be caused. For this purpose, the sensor device 10, the

recognize respective pulse durations or the frequencies of the pulse trains 6a to 6d. The pulse trains 6a to 6d are shown here by way of example only. The pulse sequences 6a to 6d can be overmodulated to a light-regulating carrier frequency and thus do not cause any actual light function of at least one headlight 6 itself. Alternatively, the

Modulation frequency may be formed as part of the light function.

By means of the sensor device 10, for example, a sensor signal can be provided which describes the detected radiation 5a to 5d. From this sensor signal can be determined using the computing device 11, for example, a spectrum or a Fourier analysis can be performed. Thus, the frequency of the blinding or disturbing Radiation 4a to 4d are detected. In addition, using the sensor device 10, an intensity of the

detected radiation 5a to 5d are determined. This can, for example, with a stored threshold

be compared. Thus, it can be determined whether the detected radiation 5a to 5d is dazzling to the driver.

If a glare was detected by one of the radiations 5a to 5d with the aid of the computing device 11, the control signal can be generated with the aid of the computing device 11, which describes the radiation 5a to 5d which is dazzling to the driver. In addition, the control signal can describe a desired intensity for the radiation 5a to 5d. The control signal can then be transmitted from the transmitting device 12 to the receiving device 8 of the lighting device 2

be transmitted. Subsequently, the received

Control signal are evaluated by means of the control device 7. The control signal, which, for example, the

Frequency, the duty cycle and / or the phase position of the pulse train 6a to 6d of the blinding radiation 5a to 5d describes, can thus be determined by means of the control device 7. In the control device 7, a

corresponding table, which an assignment of the pulse train 6a to 6d to the light source 4a to 4d

describes. Thus, with the aid of the control device 7, that light source 4a to 4d can be determined which emits the glaring radiation and these light sources 4a to 4d are activated so that the intensity of the radiation 5a to 5d is reduced. For example, the intensity of the radiation 5a to 5d can be reduced by 10%.

4 shows a schematic flow diagram of a

Method for Operating the Lighting Device 2. In a step Sl, the respective light sources 4a to 4d receive the radiations 5a to 5d with their respective ones

Pulse sequences 6a to 6d sent out. In a step S2, with the aid of the sensor device 10 of the detection device 9, those pulse sequences 6a to 6d of the radiations 5a to 5d are generated recognized, which dazzle the driver of the second vehicle 1 '. In a step S3, the control signal is determined by means of the computing device 11, which describes the interfering light source 4a to 4d. In a step S4, the

Control signal from the detection device 9 to the

Illuminating device 2 transmitted. Finally, in a step S5, the intensity of the radiation 5a to 5d, which causes the glare, is reduced or switched off. The method described provides a measuring and

Correction process. The entire measurement and analysis process and the subsequent information transfer to the dazzling or disturbing vehicle 1 'can take place within a period of a few milliseconds. The repetition frequency of the overall sequence, that is, the steps S1 to S5, can be at least 100 Hz. In this way, the glare of the driver of the second vehicle 1 'and

optionally further occupants of the second vehicle 1 'reliably prevented. This can increase road safety.

LIST OF REFERENCE NUMBERS

1 vehicle

1 'vehicle

2 lighting device

3 environment

4a- 4d light sources

5a- 5d radiation

6a-6d pulse train

7 control device

8 receiving device

9 detecting device

10 sensor device

11 computing device

12 transmitting device

Sl- ^■ S5 step

Claims

Patent claims

1. Method for adjusting a light distribution

Lighting device (2) with the steps:

- Emitting a respective radiation with at least two light sources (4a-4d) of the lighting device (2) to generate the light distribution in an environment (3).

Lighting device (2), wherein

- Radiations (5a-5d) which can be distinguished from one another are emitted with the at least two light sources (4a-4d) (Sl),

- Detecting at least one of the emitted radiations (5a-5d) by means of one in the environment (3).

Lighting device (2) arranged

Detection device (9) (S2),

- Determine a control signal using the

Detection device (9), the control signal being the

at least one detected radiation (5a-5d) describes (S3),

- Transmitting the control signal from the detection device (9) to the lighting device (2) (S4), and

- Adjusting a parameter of the at least one detected

Radiation (5a-5d) depending on the control signal (S5).

2. Method according to claim 1,

characterized in that

as the parameter an intensity of at least one

detected radiation (5a-5d).

3. Method according to claim 1 or 2,

characterized in that

the radiations (5a-5d), which with the at least two

Light sources (4a-4d) are emitted, one each

have a predetermined pulse sequence (6a-6d), the pulse duration and/or the frequency and/or the phase position of the pulse sequences (6a-6d) of the respective radiations (5a-5d) differing.

4. Method according to claim 3,

characterized in that to detect the radiation (5a-5d), the pulse sequence (6a-6d) of the radiation (6a-6d) and/or a frequency of the pulse sequence (6a-6d) is determined by means of the detection device (9).

5. Method according to claim 3 or 4,

characterized in that

the control signal is determined in such a way that the control signal represents the pulse sequence (6a-6d) of the detected radiation (5a-5d)

describes .

6. Method according to claim 5,

characterized in that

by means of the lighting device (2), the pulse sequence (6a-6d) of the at least one detected radiation (5a-5d) is determined based on the control signal, and the light source (4a-4d) by means of which the detected radiation is determined based on the specific pulse sequence (6a-6d). Radiation (5a-5d) was emitted, is detected and the detected light source (4a-4d) is controlled to adjust the parameter of the detected radiation (5a-5d).

7. Method according to one of the preceding claims,

characterized in that

An intensity of the detected radiation (5a-5d) is determined by means of the detection device (9) and compared with a predetermined threshold value.

8. Method according to one of the preceding claims,

characterized in that

the control signal is determined in such a way that the control signal describes a target intensity for the detected radiation (5a-5d) and the intensity of the detected radiation (5a-5d) is adjusted depending on the target intensity.

9. Method according to one of the preceding claims,

characterized in that

the control signal wirelessly and/or optically from the

Detection device (9) is transmitted to the lighting device (2).

10. Lighting device (2).

- At least two light sources (4a-4d), which are designed to provide light distribution in one

Environment (3) of the lighting device (2) to emit radiation (5a-5d), the respective

Radiations (5a-5d) of the at least two light sources (4a-4d) can be distinguished from one another,

- a receiving device (8) for receiving a

Control signal from an external detection device (9), the control signal being at least one of the radiations

describes, and

- a control device (7) for adjusting a parameter of the at least one described radiation (5a-5d).

Dependence on the control signal.

11. Illumination device (2) according to claim 10, wherein the at least two light sources (4a-4d) each comprise at least one light-emitting diode and / or at least one laser light source and / or at least one converter element with a conversion dye and / or at least one organic light-emitting diode.

12. Detection device (9).

- a sensor device (10) for detecting at least one radiation (5a-5d) of a light distribution,

- A computing device (12) for determining a

Control signal which describes the at least one detected radiation (5a-5d) and

- A transmitting device (13) for sending the control signal.

13. Vehicle (1, 1 ') with a lighting device (2) according to one of claims 10 or 11 and / or one

Detection device (9) according to claim 12.

14. Vehicle (1, 1') according to claim 13, wherein the vehicle (1, 1') comprises a lighting device (2) according to one of claims 10 or 11, wherein the at least two light sources (4a-4d) are arranged in at least one headlight (6) of the vehicle (1, 1').

15. Vehicle (1, 1') according to claim 13, wherein the vehicle (1, 1') comprises a detection device (9) according to claim 12, wherein the sensor device (10) is designed to detect at least one radiation (5a-5d ) in one area

detect which is assigned to the eyes of a driver and / or passenger of the vehicle (1, 1 ').