KR20170101593A - Apparatus for driving headlamp of vehicle and vehicle including the same - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a headlamp apparatus for a vehicle and a vehicle equipped with the same. A headlamp apparatus for a vehicle according to the present invention is a headlamp apparatus for a vehicle, comprising: a case; a light source unit including a plurality of light sources and outputting visible light of a first color; And a light converting portion for converting the visible light of the first color into visible light of the second and third colors, wherein the light converting portion is formed of a phosphor which is applied onto the light source portion and converts at least a part of the visible light of the first color into visible light of the second and third colors And outputs visible light in which at least a portion of the first to third hues is mixed, and outputs visible light that decreases in luminance and shape as the distance from the center area increases. Thus, the thickness of the headlamp apparatus for a vehicle can be reduced.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a headlamp for a vehicle,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a headlamp apparatus for a vehicle and a vehicle equipped with the headlamp apparatus, and more particularly, to a headlamp apparatus for a vehicle capable of reducing the thickness and a vehicle having the headlamp apparatus.

A vehicle is a device that moves a user in a desired direction by a boarding user. Typically, automobiles are examples.

On the other hand, for the convenience of users who use the vehicle, various sensors and electronic devices are provided. In particular, various devices for user's driving convenience have been developed, and various functions are provided for a vehicle headlamp.

An object of the present invention is to provide a vehicle headlamp apparatus capable of reducing the thickness and a vehicle provided with the headlamp apparatus.

According to another aspect of the present invention, there is provided a vehicular headlamp apparatus including a case, a light source unit disposed in the case, the light source unit including a plurality of light sources and outputting visible light of a first color, And a light conversion section for converting at least a part of the visible light into visible light of the second and third colors, wherein the light conversion section is applied on the light source section and includes at least a part of the visible light of the first color, And outputs visible light in which at least a part of the first to third hues is output, and a visible light whose brightness and size become smaller as the distance from the center area is increased.

According to another aspect of the present invention, there is provided a vehicle including: a case; a light source unit disposed in the case and having a plurality of light sources for outputting visible light of a first color; And a light conversion section for converting at least a part of the visible light of one color into visible light of the second and third colors, wherein the light conversion section is applied on the light source section, wherein at least a part of the visible light of the first color, And outputs visible light in which at least a part of the first to third hues is output, and a visible light whose luminance and size become smaller as the distance from the center area is output.

A vehicle headlamp apparatus and a vehicle including the same according to embodiments of the present invention include a case, a light source unit disposed in the case and having a plurality of light sources for outputting visible light of a first color, And a light conversion section for converting at least a part of the visible light of one color into visible light of the second and third colors, wherein the light conversion section is applied on the light source section, wherein at least a part of the visible light of the first color, And outputs visible light in which at least a part of the first to third hues is output, and a visible light whose luminance and size become smaller as the distance from the center area is output. Thus, the thickness of the headlamp apparatus for a vehicle is reduced. Thus, the mounting convenience of the vehicle headlamp apparatus can be improved.

On the other hand, it is possible to increase the driving convenience of the driver by outputting visible light mixed with at least a part of the first to third hues, and outputting visible light whose brightness and size become smaller as the distance from the center area is increased .

On the other hand, control of the light source is performed so that visible light of various shapes or intensities can be outputted in accordance with the driving situation of the vehicle by turning off some light sources or varying intensity of the light sources.

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a view showing the appearance of a vehicle including a headlamp for a vehicle according to an embodiment of the present invention; FIG.
FIG. 2 is a view illustrating the output of visible light from a headlamp apparatus for a vehicle when driving at night.
3 illustrates an example of an internal block diagram of a headlamp apparatus for a vehicle according to an embodiment of the present invention.
Fig. 4 illustrates an example of an internal block diagram of the light output section of Fig.
5 is an example of a block diagram of the inside of a vehicle according to an embodiment of the present invention.
6 is an example of a structure of a headlamp apparatus for a vehicle according to an embodiment of the present invention.
Fig. 7 is a diagram referred to in describing the operation of the headlamp apparatus for a vehicle of Fig. 6; Fig.
8 is a view showing the shape of visible light output from the headlamp apparatus for a vehicle in Fig.
9A to 11 are views showing various examples of the structure of a headlamp apparatus for a vehicle according to an embodiment of the present invention.
12 illustrates another example of an internal block diagram of a headlamp apparatus for a vehicle according to an embodiment of the present invention.
13 is a diagram showing an internal circuit diagram of the light source driving unit of FIG.
Figs. 14 to 16 are drawings referred to in describing the operation of the headlamp apparatus for a vehicle of Fig. 3 or Fig.

Hereinafter, the present invention will be described in detail with reference to the drawings.

The suffix "module" and " part "for components used in the following description are given merely for convenience of description, and do not give special significance or role in themselves. Accordingly, the terms "module" and "part" may be used interchangeably.

The vehicle described herein may be a concept including a car, a motorcycle. Hereinafter, the vehicle will be described mainly with respect to the vehicle.

On the other hand, the vehicle described in the present specification may be a concept including both a vehicle having an engine as a power source, a hybrid vehicle having an engine and an electric motor as a power source, and an electric vehicle having an electric motor as a power source.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view showing the appearance of a vehicle including a headlamp for a vehicle according to an embodiment of the present invention; Fig.

Referring to the drawings, a vehicle 200 includes wheels 103FR, 103FL, 103RL, ... rotated by a power source, a handle 150 for adjusting the traveling direction of the vehicle 200, And a plurality of headlamp devices 100L and 100R to be mounted.

More specifically, a plurality of headlamp apparatuses 100L and 100R are disposed in a case (101 in Fig. 6) and in a case (101 in Fig. 6), and a plurality of light sources (Dpa, Dpb, (52 in Fig. 6) that outputs visible light of a first color, and a light source portion (52 in Fig. 6) that outputs visible light of a first color, And a conversion unit (54 in Fig. 6).

Particularly, the light converting portion (54 in Fig. 6) is provided on the light source portion 52 and has a phosphor 54a that converts at least a part of visible light of the first color into visible light of the second and third colors And the first to third hues. The farther from the center area CEN, the lower the luminance of the visible light to be outputted and the smaller the size of the shape of the visible light to be output. Thus, the thickness of the headlamp apparatuses 100L and 100R for a vehicle is reduced. Thus, the mounting convenience of the vehicle headlamp apparatuses 100L, 100R can be improved.

On the other hand, the plurality of headlamp apparatuses 100L and 100R output visible light in which at least a part of the first to third hues is mixed, and the visible light which decreases in brightness and size as the distance from the center area is increased Thus, the driver's convenience of driving can be enhanced.

On the other hand, the plurality of headlamp apparatuses 100L and 100R control the light source to turn off some light sources or vary the intensity of the light source, thereby outputting visible light of various shapes or intensities .

In particular, the plurality of headlamp apparatuses 100L and 100R may vary at least one of the output direction, the output distance, and the output intensity of the visible light based on the steering direction variable signal of the vehicle.

On the other hand, the plurality of headlamp apparatuses 100L and 100R can vary the intensity of visible light according to the illuminance around the vehicle. For example, it is possible to increase the intensity of visible light as the illuminance decreases, that is, as the vehicle surroundings become darker.

Alternatively, the plurality of headlamp apparatuses 100L and 100R can set at least one of the output direction of the visible light, the output distance, and the output intensity based on the data received through the communication unit (120 in FIG. 3) .

FIG. 2 is a diagram illustrating the output of visible light from the headlamp when the vehicle travels at night.

Referring to the drawings, a plurality of headlamp apparatuses 100L and 100R in the vehicle 200 can output visible light VL with respect to the front 521 at night when the vehicle is traveling.

The visible light VL is output through the light output portion (50 in Fig. 3).

3 illustrates an internal block diagram of a headlamp apparatus for a vehicle according to an embodiment of the present invention.

3, the vehicle headlamp apparatus 100 includes a light output unit 50, a light receiving unit 70, a communication unit 120, an interface unit 130, a memory (not shown) for outputting visible light to the front of the vehicle A display unit 180, an audio output unit 185, and a power supply unit 190. The display unit 180 may include a display unit 140, a brightness sensor 160, a processor 170, In addition, an audio input unit (not shown) may be further provided.

The light output section 50 outputs visible light to the front of the vehicle. For this purpose, the light output section 50 includes a light source section 52 for outputting visible light of a first color, and a light source section 52 for converting at least a part of the visible light of the first color into visible light of the second and third colors, And a light conversion section 54 for outputting visible light in which at least a part of the third hues is mixed.

On the other hand, the light conversion section 54 may diffuse the visible light in which at least a part of the first to third hues are mixed, in front of the vehicle and output it.

The light receiving section 70 can receive light in front of the vehicle, in particular, light from another vehicle.

To this end, the light receiving unit 70 may include a light detecting unit (not shown) for converting the received light into an electric signal. The electrical signal converted by the optical detector (not shown) may be input to the processor 170.

The communication unit 120 can exchange data with the mobile terminal 600 or the server 500 in a wireless manner. In particular, the communication unit 120 can exchange data with a mobile terminal of a vehicle driver wirelessly. As a wireless data communication method, various data communication methods such as Bluetooth, WiFi Direct, WiFi, and APiX are possible.

The communication unit 120 can receive weather information and traffic situation information on the road, for example, TPEG (Transport Protocol Expert Group) information from the mobile terminal 600 or the server 500. Meanwhile, in the vehicle headlamp apparatus 100, real-time traffic information obtained based on an image may be transmitted to the mobile terminal 600 or the server 500.

On the other hand, when the user is boarding the vehicle, the user's mobile terminal 600 and the headlamp apparatus 100 for a vehicle can perform pairing with each other automatically or by execution of a user's application.

Meanwhile, the communication unit 120 receives an optical output unit operation signal for outputting visible light from the user's mobile terminal 600 or the like, or sets at least one of an output direction, an output distance, and an output intensity of visible light Lt; / RTI > Each received signal may be communicated to the processor 170.

The interface unit 130 can receive the vehicle-related data or transmit the signal processed or generated by the processor 170 to the outside. To this end, the interface unit 130 can perform data communication with the ECU 770, the AVN (Audio Video Navigation) device 400, the sensor unit 760, and the like in the vehicle by a wire communication or a wireless communication method have.

The interface unit 130 can receive map information related to the vehicle driving by data communication with the AVN apparatus 400. [

On the other hand, the interface unit 130 can receive the sensor information from the ECU 770 or the sensor unit 760.

Here, the sensor information includes at least one of vehicle direction information, vehicle position information (GPS information), vehicle angle information, vehicle speed information, vehicle acceleration information, vehicle tilt information, vehicle forward / backward information, battery information, fuel information, Lamp information, vehicle interior temperature information, and vehicle interior humidity information.

On the other hand, among the sensor information, the vehicle direction information, the vehicle position information, the vehicle angle information, the vehicle speed information, the vehicle tilt information, and the like relating to the vehicle running can be referred to as vehicle running information.

The memory 140 may store various data for operation of the entire vehicular headlamp apparatus 100, such as a program for processing or controlling the processor 170. [

The illuminance sensor 160 can sense the illuminance outside the vehicle. In particular, it is possible to sense the illuminance of the outside of the front of the vehicle. The sensed external illumination is transmitted to the processor 170.

An audio input unit (not shown) can receive a user's voice. For this purpose, a microphone may be provided. The received voice may be converted to an electrical signal and transmitted to the processor 170.

The processor 170 controls the overall operation of each unit in the vehicle headlamp apparatus 100. [

The processor 170 controls the light sources of some of the plurality of light sources Dpa, Dpb, ... in the light source section 52 in the light output section 50 to be turned off based on the steering direction of the vehicle, It is possible to vary the intensity of light. Thereby, it becomes possible to output more concentrated visible light in the front region corresponding to the steering direction of the vehicle.

When the detected temperature is equal to or higher than the predetermined temperature, the processor 170 controls the light sources Dpa, Dpb, Dpb, ..., or to vary the intensity of the light. Thus, it is possible to prevent the circuit element from being burned out by the temperature rise of the light source portion 52. Further, the light source unit 52 can output uniform light irrespective of temperature characteristics.

On the other hand, when the level of the received light received from the light receiving unit 70 is equal to or higher than a predetermined level, the processor 170 controls to turn off at least some light sources of the plurality of light sources Dpa, Dpb, The strength can be varied.

That is, the processor 170 may vary at least one of an output direction, an output distance, and an output intensity of visible light when visible light is output through the light output unit 50. [

For example, when the level of the visible light from the headlamp device of the vehicle facing at night is equal to or higher than a predetermined level, a plurality of light sources Dpa, Dpb, ..., or to vary the intensity of the light. As a result, it is possible to secure the visibility of the driver of the opposed vehicle.

The processor 170 may vary the intensity of the visible light output from the light output unit 50 according to the illuminance detected from the illuminance sensor 160 that senses the illuminance around the vehicle. For example, the light output section 50 may be controlled so that the lower the sensed illuminance, the greater the intensity of the visible light.

On the other hand, the processor 170 may vary at least one of the output direction, the output distance, and the output intensity of the visible light based on the steering direction variable signal of the vehicle.

On the other hand, the processor 170 can change the intensity of the visible light according to the illuminance around the vehicle. For example, it is possible to increase the intensity of visible light as the illuminance decreases, that is, as the vehicle surroundings become darker.

Alternatively, the processor 170 may set at least one of the output direction of the visible light, the output distance, and the output intensity based on the data received through the communication unit 120. [

On the other hand, the processor 170 can receive the sensor information from the ECU 770 or the sensor unit 760 through the interface unit 130. [ Here, the sensor information includes at least one of vehicle direction information, vehicle position information (GPS information), vehicle angle information, vehicle speed information, vehicle acceleration information, vehicle tilt information, vehicle forward / backward information, battery information, fuel information, Lamp information, vehicle interior temperature information, and vehicle interior humidity information.

The display 180 may be provided with a variety of user interfaces, and may include a touch sensor capable of performing touch input on the provided user interface.

Meanwhile, the display 180 may include a cluster or an HUD (Head Up Display) on the inside of the vehicle interior. On the other hand, when the display 180 is the HUD, it may include a projection module that projects an image on the windshield of the vehicle 200. [

The audio output unit 185 outputs the sound to the outside based on the audio signal processed by the processor 170. [ To this end, the audio output unit 185 may include at least one speaker.

The power supply unit 190 can supply power necessary for the operation of each component under the control of the processor 170. [ Particularly, the power supply unit 190 can receive power from a battery or the like inside the vehicle.

Fig. 4 illustrates an example of an internal block diagram of the light output section of Fig.

4, the light output unit 50 includes a light source unit 52 that outputs visible light of a first color, and a light source unit 52 that converts at least a part of the visible light VL1 of the first color, And a light converting part 54 for converting visible light VL2 and VL3 and outputting visible light VL mixed with at least a part of visible light VL1 to VL3 of the first to third colors.

On the other hand, the light converting unit 54 can diffuse the visible light VL mixed with at least a part of the visible light VL1 to VL3 of the first to third colors to the front of the vehicle and output it.

Particularly, the light converting unit 54 outputs the visible light VL in which at least a part of the visible light VL1 to VL3 of the first to third colors is mixed, as the distance from the center area CEN increases, And the visible light whose shape size is reduced can be outputted. As a result, the thickness of the headlamp apparatus 100 for a vehicle is reduced. Thus, the mounting convenience of the vehicular headlamp apparatus 100 can be improved.

For example, when the light source unit 52 outputs blue light, the light conversion unit 54 may include a phosphor (54a in Fig. 6A) for converting blue light into red light and green light.

On the other hand, the light conversion section 54 can output white light in which blue light, red light, and green light are mixed. Further, the light conversion section 54 may further output yellow light in which red light and green light are mixed.

On the other hand, the light conversion section 54 may include a plurality of light sources Dpa, Dpb, ... for outputting blue light.

The plurality of light sources Dpa, Dpb, ... may include light emitting diodes (LED). In particular, a blue light emitting diode device can be provided.

5 is an example of a block diagram of the inside of a vehicle according to an embodiment of the present invention.

Referring to the drawings, the vehicle 200 may include an electronic control device 700 for vehicle control. The electronic control apparatus 700 can exchange data with the AVN apparatus 400. [

The electronic control unit 700 includes an optical output unit 50, a light receiving unit 70, an illuminance sensor 160, an input unit 710, a communication unit 720, a memory 740, a lamp driving unit 751, A sunroof driving unit 755, a suspension driving unit 756, an air conditioning driving unit 757, a window driving unit 758, an airbag driving unit 759, a sensor unit 752, a brake driving unit 753, a power source driving unit 754, 760, an ECU 770, a display 780, an audio output unit 785, and a power supply unit 790.

Here, the optical output unit 50, the light receiving unit 70, and the illuminance sensor 160 will be described with reference to FIGS. 3 to 4.

On the other hand, the ECU 770 may be a concept including a processor.

The input unit 710 may include a plurality of buttons or a touch screen disposed inside the vehicle 200. Through a plurality of buttons or a touch screen, it is possible to perform various input operations.

The communication unit 720 can exchange data with the mobile terminal 600 or the server 500 in a wireless manner. In particular, the communication unit 720 can exchange data with the mobile terminal of the vehicle driver wirelessly. As a wireless data communication method, various data communication methods such as Bluetooth, WiFi Direct, WiFi, and APiX are possible.

The communication unit 720 can receive weather information and traffic situation information of the road, for example, TPEG (Transport Protocol Expert Group) information from the mobile terminal 600 or the server 500.

On the other hand, when the user aboard the vehicle, the user's mobile terminal 600 and the electronic control device 700 can perform pairing with each other automatically or by execution of the user's application.

The communication unit 720 receives the light output unit operation signal for outputting visible light from the user's mobile terminal 600 or sets at least one of the output direction of the visible light, Lt; / RTI > Each received signal may be transmitted to the ECU 770.

The memory 740 may store various data for operation of the electronic control unit 700, such as a program for processing or controlling the ECU 770. [

The lamp driving unit 751 can control the turn-on / turn-off of the lamps disposed inside and outside the vehicle. Also, the intensity, direction, etc. of the light of the lamp can be controlled. For example, it is possible to perform control on a direction indicating lamp, a brake lamp, and the like.

The steering driver 752 may perform electronic control of a steering apparatus (not shown) in the vehicle 200. [ Thus, the traveling direction of the vehicle can be changed.

The brake driver 753 can perform electronic control of a brake apparatus (not shown) in the vehicle 200. [ For example, the speed of the vehicle 200 can be reduced by controlling the operation of the brakes disposed on the wheels. As another example, it is possible to adjust the traveling direction of the vehicle 200 to the left or right by differently operating the brakes respectively disposed on the left wheel and the right wheel.

The power source driving section 754 can perform electronic control of the power source in the vehicle 200. [

For example, when a fossil fuel-based engine (not shown) is a power source, the power source drive unit 754 can perform electronic control of the engine. Thus, the output torque of the engine and the like can be controlled.

As another example, when the electric motor (not shown) is a power source, the power source driving unit 754 can perform control on the motor. Thus, the rotation speed, torque, etc. of the motor can be controlled.

The sunroof driving unit 755 may perform electronic control of a sunroof apparatus (not shown) in the vehicle 200. [ For example, you can control the opening or closing of the sunroof.

The suspension driving unit 756 may perform electronic control of a suspension apparatus (not shown) in the vehicle 200. [ For example, when there is a curvature on the road surface, it is possible to control the suspension device so as to reduce the vibration of the vehicle 200. [

The air conditioning driving section 757 can perform electronic control on an air conditioner (not shown) in the vehicle 200. [ For example, when the temperature inside the vehicle is high, the air conditioner can be operated to control the cooling air to be supplied into the vehicle.

The window driving unit 758 can perform electronic control on a window apparatus (not shown) in the vehicle 200. [ For example, it can control the opening or closing of left and right windows on the side of the vehicle.

The airbag driver 759 can perform electronic control of the airbag apparatus in the vehicle 200. [ For example, at risk, the airbag can be controlled to fire.

The sensor unit 760 senses a signal related to the running or the like of the vehicle 100. [ To this end, the sensor unit 760 may include a heading sensor, a yaw sensor, a gyro sensor, a position module, a vehicle forward / backward sensor, a wheel sensor, A vehicle speed sensor, a vehicle body inclination sensor, a battery sensor, a fuel sensor, a tire sensor, a steering sensor by steering wheel rotation, a vehicle interior temperature sensor, and a vehicle interior humidity sensor.

Thereby, the sensor unit 760 outputs the vehicle position information (GPS information), the vehicle angle information, the vehicle speed information, the vehicle acceleration information, the vehicle tilt information, the vehicle forward / backward information, the battery information, Tire information, vehicle lamp information, vehicle internal temperature information, vehicle interior humidity information, and the like.

In addition, the sensor unit 760 may include an accelerator pedal sensor, a pressure sensor, an engine speed sensor, an air flow sensor AFS, an intake air temperature sensor ATS, a water temperature sensor WTS, A position sensor (TPS), a TDC sensor, a crank angle sensor (CAS), and the like.

The ECU 770 can control the overall operation of each unit in the electronic control unit 700. [

It is possible to perform a specific operation by input by the input unit 710 or to receive the signal sensed by the sensor unit 760 and to transmit it to the headlamp apparatus 100 for a vehicle and to transmit the map information from the AVN apparatus 400 And can control the operation of each of the longitudinal drive units 751, 752, 753, 754, and 756.

Also, the ECU 770 can receive weather information and traffic situation information of the road, for example, TPEG (Transport Protocol Expert Group) information from the communication unit 720. [

On the other hand, the ECU 770 may perform all of the functions performed by the processor 170 in the vehicle headlamp apparatus 100 described with reference to Figs. The description thereof will be omitted with reference to the above description.

The display 780 can display the distance information of the object with respect to the front of the vehicle to be calculated. In particular, it is also possible to provide various other user interfaces.

For display of such distance information and the like, the display 780 may include a cluster or HUD (Head Up Display) on the inside of the vehicle interior. On the other hand, when the display 780 is the HUD, it may include a projection module that projects an image on the windshield of the vehicle 200. [ On the other hand, the display 780 may include a touch screen capable of being input.

The audio output unit 785 converts the electrical signal from the ECU 770 into an audio signal and outputs the audio signal. For this purpose, a speaker or the like may be provided. The audio output unit 785 can also output a sound corresponding to the operation of the input unit 710, that is, the button.

The power supply unit 790 can supply power necessary for operation of each component under the control of the ECU 770. [ Particularly, the power supply unit 790 can receive power from a battery (not shown) inside the vehicle.

FIG. 6 is an example of a structure of a headlamp apparatus for a vehicle according to an embodiment of the present invention, FIG. 7 is a diagram referencing an operation description of the headlamp apparatus for a vehicle of FIG. 6, FIGS. 9A to 11 are views showing various examples of the structure of a headlamp apparatus for a vehicle according to an embodiment of the present invention.

6, a vehicle headlamp apparatus 100 according to an embodiment of the present invention includes a case 101, a plurality of light sources Dpa, Dpb, ... disposed in the case 101, A light source unit 52 that outputs visible light of a first color and a light source unit 52 that is disposed within the case 101 and that converts at least a part of the visible light of the first color into visible light of the second and third colors, And may include a portion 54.

The light conversion section 54 may be provided on the light source section 52 and may include a phosphor 54a that converts at least a part of the visible light of the first color into visible light of the second and third colors.

7, the light source unit 52 outputs blue light, the light conversion unit 54 receives blue light, converts the blue light into red light and green light, and outputs white light in which blue light, red light, and green light are mixed have. Further, yellow light mixed with red light and green light can be further output.

On the other hand, the light conversion section 54 can output the asymmetrical visible light 900, as shown in Fig.

On the other hand, in order to confirm the situation ahead of the vehicle, the photo-conversion unit 54 can output visible light whose brightness and size become smaller as the distance from the center area CEN increases.

6, the plurality of light sources Dpa, Dpb, ... are arranged in a line in a first direction, that is, in the horizontal direction, and the plurality of light sources Dpa, Dpb, And a light emitting diode element.

On the other hand, as shown in Fig. 6, the case 101 and the light conversion portion 54 may have an asymmetric shape with respect to a second direction (vertical direction) perpendicular to the first direction (horizontal direction).

On the other hand, as shown in FIG. 8, the photo-conversion section 54 has a first region Ar3a on the first side (left side) with respect to the center region CEN, (White light) of the second shape mixed with the first to third colors is output to the second area Ar3b of the second side (right side) with reference to the center area CEN, Can be output.

Here, the first shape may be a rectangular shape, and the second shape may be a trapezoid shape or a pentagonal shape. On the other hand, for the asymmetric shape, it is preferable that the size of the second shape is larger than the size of the first shape.

On the other hand, as shown in Fig. 8, the photo-conversion section 54 has the third region (left side) farther from the first region (left side) than the first region (Ar3a) (Yellow light) in which the visible light (red light) of the second color and the visible light (green light) of the third color are mixed in the region Ar2 and the visible light (Red light) of the second color and visible light (green light) of the third color are mixed in the fourth region Ar4 on the second side (right side) farther from the second region Ar3b on the right side It is possible to output visible light of a fourth shape (yellow light).

On the other hand, as shown in Fig. 8, the photo-conversion section 54 is arranged on the basis of the center region CEN as the fifth region (left side) farther from the third region Ar2 on the first side (Right side) of the second side (right side), which is farther from the fourth region Ar4 on the second side (right side), on the basis of the center area CEN, It is possible to output the sixth shape visible light to the region Ar5.

Referring to FIG. 8, as the visible light output from the light converting part 54 moves away from the center area CEN, the luminance and the size of the shape become smaller. Thus, the visible light suitable for the headlamp apparatus 100 can be outputted.

6, the thickness of the coated phosphor 54a in the direction from the light source to the visible light output is constant. However, as the distance from the center area CEN increases, the luminance and the visible light, , The concentration of the applied phosphor 54a may be lowered from the center area CEN to the side area.

On the other hand, it is also possible that the thickness of the applied phosphor 54a decreases from the center area CEN to the side area.

9A shows a state in which a phosphor 54b having a thickness W2 is applied to an area for outputting white light in the vicinity of the center area CEN and a phosphor 54a having a thickness W1 smaller than W2 is applied to the area for outputting yellow light . Accordingly, the farther from the center area CEN, the smaller the luminance and the size of the shape.

9B to 9C illustrate that the phosphors 54d, 54e, 54c and 54a to be coated are successively reduced to W3, W4, W2 and W1, respectively, from the center area CEN to the side.

Particularly, the vehicular headlamp apparatus 100b shown in Fig. 9B exemplifies that the thickness of the fluorescent material protrudes in the light output direction, and the vehicle headlamp apparatus 100c shown in Fig. 9C, on the contrary, It is exemplified that the phosphor protrudes.

On the other hand, as shown in FIG. 10A, a part of the plurality of light sources Dpa, Dpb, ... may be arranged on the upper part and the other part may be arranged on the lower part.

Accordingly, as shown in FIG. 10A, the light converting unit 54 can be divided into a first light converting unit corresponding to the light source disposed at the upper portion and a second light converting unit corresponding to the light source disposed at the lower portion. In the figure, it is exemplified that the phosphor 54a is divided into a first phosphor 54a1 and a second phosphor 54a2.

On the other hand, the photoconversion unit 54 may be divided into blocks as shown in FIG. 10A.

Fig. 10B illustrates that the phosphor 54a is divided into blocks 54aa1, 54aa2, 54ba1, 54ba2, ....

The headlamp apparatus 100d for a vehicle shown in Fig. 11 is similar to the headlamp apparatus 100 shown in Fig. 6 except that a plurality of light sources Dpa, Dpb, HDpa, HDpb, ...) are further arranged.

Particularly, the heat dissipating members HDpa, HDpb, ... can be connected to the case 101 made of a metal member. The heat dissipating members HDpa, HDpb, ... made of a metal member can transmit heat generated from the plurality of light sources Dpa, Dpb, ... to the case 101, The driving stability of the light sources Dpa, Dpb, ... can be improved.

12 illustrates another example of an internal block diagram of a headlamp apparatus for a vehicle according to an embodiment of the present invention.

Referring to the drawings, a vehicle headlamp apparatus 100 includes a light source unit 52, a light source driver 256 for driving the light source unit 52, a processor 170 for controlling the light source driver 256, A light receiving unit 70, a temperature sensing unit 39 for sensing the temperature around the light source unit 52, and a power supply unit 190 for supplying power.

The processor 170 may control to turn off some light sources of the plurality of light sources Dpa, Dpb, ... based on the steering direction of the vehicle, or may vary the intensity of light of some light sources.

The processor 170 controls the light sources of at least some of the plurality of light sources Dpa, Dpb, ... to be turned off when the temperature sensed by the temperature sensing unit 39 is equal to or higher than the predetermined temperature, .

On the other hand, when the level of the received light is equal to or higher than a predetermined level, the processor 170 controls the light sources of at least some of the plurality of light sources Dpa, Dpb, ... to be turned off, or the intensity of light can be varied.

The light source driver 256 includes switching elements Sa, ..., Sn connected to the plurality of light sources Dpa, Dpb, ... and switches SW2, ..., Sn for driving the switching elements Sa, A driving unit 1130 and a driving control unit 1120 for controlling a current flowing in the light source unit 52. [

On the other hand, the light source driver 256 will be described with reference to FIG. 13 and subsequent figures.

13 is a diagram showing an internal circuit diagram of the light source driving unit of FIG.

Referring to the drawings, a vehicle headlamp apparatus 100 includes a light source unit 52, a power supply unit 190 for supplying power to the light source unit 52, and a light source driver 256 for driving the light source unit 52 .

Here, the light source unit 52 may include a plurality of light sources Lda, .., Ldn.

The plurality of light sources Lda, .., Ldn may each include a light emitting diode element.

On the other hand, as the luminance of the visible light increases, the number of the plurality of LEDs increases, and accordingly, the driving voltages Vfa, .., Vfn of the light emitting diode devices Lda, .., Ldn can be increased.

Alternatively, the driving currents Ifa, .., Ifn of the light-emitting diode elements Lda, .., Ldn can be increased.

Depending on the LED drive voltages Vfa, .., Vfn or the currents Ifa, .. Ifn, power consumption consumed in the light source unit 52 can be increased. Accordingly, it is important to drive the light source section 52 so as to reduce the power consumption deviation.

The power supply unit 190 includes a dc / dc converter 1110 for level-converting and outputting DC power, an inductor L for removing harmonics and the like, and a capacitor C for storing DC power .

The voltage across the capacitor C corresponds to the voltage supplied between the node A and the ground terminal, which may correspond to the voltage applied to the plurality of light sources Lda, .., Ldn. That is, the voltage of the node A can be referred to as a VLED voltage as shown in the figure.

Alternatively, the VLED voltage may be divided by the resistance elements R1 and R2, and the divided voltage Vadc may be applied to the drive control section 1120. [ The drive control section 1120 can operate by the applied voltage Vadc.

On the other hand, the VLED voltage actually differs from the Vf voltage for operating the light source part, but is assumed to be substantially the same in the following.

On the other hand, the vehicular headlamp apparatus 100 may include a voltage detection unit (DVL) for detecting the VLED voltage. The voltage detector DVL may include a resistance element, an amplifier, or the like, or may include a voltage transformer (VT). The detected VLED voltage may be input to the drive control section 1120. [ The drive control section 1120 can operate by the applied voltage VLED.

The voltage detector DVL detects the VLED voltage but assumes that the VLED voltage is substantially similar to the Vf voltage as described above. Consequently, the voltage detector DVL detects the voltage of the light source unit Lda, .., Ldn, Can be detected.

The light source driver 256 controls the driving of the plurality of light sources Lda to Ldn and the switching elements Sa to Sn to switch the plurality of light sources Lda to Ldn. And a switch driver 1130 for receiving the switching control signal Scs from the driving control unit 1120 and controlling the switching elements Sa, .., Sn.

The light source driver 256 includes a plurality of resistors Ra and Rn connected between the switching elements Sa and Sn and a ground terminal. .., Dfn) for detecting currents (Ifa, .. Ifn) flowing through the transistors Rn, ..., Rn.

The current detectors Dfa, .., Dfn may be provided with an amplifier or may be provided with a current transformer (CT).

The currents Ifa, .., Ifn detected by the current detectors Dfa, .., Dfn may be input to the switch driver 1130 and the switch driver 1130 may detect the currents Ifa, .., . Ifn, the current data Data if can be transmitted to the drive control unit 1120. [

The drive control unit 1120 controls the driving control unit 1120 such that the average level of the currents Ifa through Ifn flowing in the light source unit during the first period is smaller than the average current flowing through the light source unit during the second period after the first period, It is preferable to control the average level to be the second level.

On the other hand, the drive control unit 1120 calculates power consumption based on the voltage VLED applied to the light source unit and the currents Ifa, .., Ifn flowing in the light source units Lda, .., Ldn. Based on the calculated consumed power and the target consumed power, control is performed so that the average level of the currents (Ifa, .. Ifn) flowing in the light source units Lda, .., Ifn during the second period becomes the second level can do. This makes it possible to reduce the variation in power consumption of the light source unit.

On the other hand, the drive control section 1120 controls the current flowing in the light sources Dpa, Dpb, ... based on the voltage data detected by the voltage detection section, the current data detected from the switch driving section 1130, can do. Thus, it is possible to stably drive the light sources Dpa, Dpb, ....

Fig. 14 is a diagram referred to in describing the operation of the headlamp apparatus for a vehicle in Fig. 3 or Fig.

Referring to the drawings, the processor 170 may control the light sources of at least some of the plurality of light sources Dpa, Dpb, ... to be turned off, or may vary the intensity of light.

In the drawing, some light emitting diode elements Lpa and Lpb of the plurality of light emitting diode elements Lpa, Lpb, ... Lp1, Lp2 and Lp3 are turned off, and only some other light emitting diode elements Lp1, Lp2 and Lp3 are turned on .

For example, when the sensed temperature is equal to or higher than a predetermined temperature, the processor 170 determines that some of the light emitting diode elements Lpa, Lpb, ..., Lp1, Lp2, and Lp3 of the plurality of light emitting diode elements Lpa, Lpb) can be controlled to be off or the intensity of light can be varied.

In another example, when the level of the received light received by the light receiving unit 70 is equal to or higher than a predetermined level, the processor 170 may control the light emitting diodes Lpa, Lpb, ..., Lp1, Lp2, It is possible to control to turn off the elements Lpa and Lpb or vary the intensity of light.

As another example, the processor 170 may turn off some of the light emitting diode elements Lpa, Lpb among the plurality of light emitting diode elements Lpa, Lpb, ... Lp1, Lp2, Lp3 based on the steering direction of the vehicle Or the intensity of light of some light sources can be varied.

Figs. 15 to 16 are diagrams referred to the description of the operation method of the headlamp apparatus for a vehicle.

15 illustrates that the first and second visible lights 1210 and 1214 are output from the headlamp apparatuses 100L and 100R while the vehicle 200 is traveling at night and the direction of the first visible light is changed.

The light output section 50 in the vehicle headlamp apparatus 100 outputs visible light at night and the light receiving section 70 receives the received light corresponding to the visible light.

As shown in the figure, when the opponent vehicle 1800 runs in the opposite lane La1 in addition to the lane La2 on which the vehicle 200 travels, the processor 170 in the headlamp apparatus 100 for a vehicle receives Based on the received light, it can be seen that there is a counterpart vehicle 1800 in the opposite lane La1 direction.

Accordingly, the processor 170 can control so that the driver of the opponent vehicle 1800 in the opposite lane La1 direction can vary the output direction of the visible light so as not to feel the glare caused by the visible light output from the vehicle 200 .

More specifically, the processor 170 controls the light sources of at least some of the plurality of light sources Dpa, Dpb, ... provided in the left headlamp apparatus 100L to be turned off, The direction of the visible light can be controlled so as not to overlap with the counterpart vehicle, that is, the right direction. Thus, the opponent vehicle 1800 driver can be protected.

Next, FIG. 16 shows an example in which the first and second visible lights 1210 and 1214 are output from the headlamp apparatuses 100L and 100R while the vehicle 200 is traveling at night, and the intensity of the first visible light is changed .

15, there is a difference in that the intensity of visible light or the distance of reach of visible light is varied.

The processor 170 can control the driver of the counterpart vehicle 1800 in the opposite lane La1 direction to vary the output intensity or the output distance of the visible light so as not to feel the glare caused by the visible light output from the vehicle 200 have.

Specifically, the processor 170 controls the light sources of at least some of the plurality of light sources Dpa, Dpb, ... provided in the left headlamp apparatus 100L to be turned off or to vary the intensity of the light, And the direction of the visible light from which the reaching distance of visible light is output do not overlap with the counterpart vehicle. Thus, the opponent vehicle 1800 driver can be protected.

On the other hand, unlike the drawing, the processor 170 may vary at least one of the output direction, the output distance, and the output intensity of the visible light output from the light output section 50, based on the steering direction variable signal of the vehicle .

Alternatively, the processor 170 may control at least one of the output direction, the output distance, and the output intensity of the visible light output from the light output section 50, according to the illuminance sensed by the illuminance sensor 160 that senses the illuminance around the vehicle .

On the other hand, the vehicle headlamp apparatus and the vehicle operating method of the present invention can be implemented as a code readable by a processor on a recording medium readable by a processor for a vehicle headlamp apparatus or a vehicle. The processor-readable recording medium includes all kinds of recording apparatuses in which data that can be read by the processor is stored. Examples of the recording medium that can be read by the processor include a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like, and may also be implemented in the form of a carrier wave such as transmission over the Internet . In addition, the processor-readable recording medium may be distributed over network-connected computer systems so that code readable by the processor in a distributed fashion can be stored and executed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the present invention.

Claims (15)

case;
A light source unit disposed in the case, the light source unit including a plurality of light sources and outputting visible light of a first color; And
And a light conversion unit disposed in the case and converting at least a part of the visible light of the first color into visible light of the second and third colors,
Wherein the light-
And a phosphor which is applied on the light source and converts at least a part of the visible light of the first color into visible light of the second and third colors,
And outputs visible light in which at least a part of the first to third hues is mixed, wherein the visible light is output as the luminance and shape become smaller as the distance from the center area increases. The method according to claim 1,
Wherein the plurality of light sources are arranged in a line in a first direction,
Wherein the light source comprises a light emitting diode element. 3. The method of claim 2,
The case and the light converting unit may include:
And the second head portion has an asymmetrical shape with respect to a second direction perpendicular to the first direction. The method according to claim 1,
Wherein the plurality of light sources are spaced apart from each other in a horizontal direction,
Wherein the light-
And outputs visible light of a first shape mixed with the first to third colors to a first region of the first side with reference to the center region,
And outputs visible light of a second shape mixed with the first to third colors to a second region of the second side with reference to the center region. 5. The method of claim 4,
Wherein the light-
And outputs a visible light of a third shape mixed with the second color and the third color in a third region of the first side farther from the first region of the first side with respect to the center region,
The visible light of the fourth shape mixed with the second color and the third color is output to the fourth region of the second side farther from the second region of the second side on the basis of the center region Of the vehicle headlamp. The method according to claim 1,
Wherein a thickness of the applied phosphor in a direction from the light source to the visible light output is constant and a concentration of the applied phosphor decreases from the center area to the side area. The method according to claim 1,
Wherein a thickness of the applied phosphor decreases from the center area to the side area. The method according to claim 1,
Wherein a part of the plurality of light sources is disposed on the upper part and the other part is disposed on the lower part,
Wherein the light-
A first light converting unit corresponding to the light source disposed at the upper portion, and a second light converting unit corresponding to the light source disposed at the lower portion. The method according to claim 1,
A light source driving unit for driving the light source unit; And
And a processor for controlling the light source driver,
The processor comprising:
And controls the light sources of some of the plurality of light sources to be turned off based on the steering direction of the vehicle or varies the intensity of light of a part of the light sources. 10. The method of claim 9,
And a temperature sensing unit for sensing a temperature around the light source unit,
The processor comprising:
And controls the light source of at least some of the plurality of light sources to be turned off or to change the intensity of light when the sensed temperature is equal to or higher than a predetermined temperature. 10. The method of claim 9,
The light source driver includes:
A switching element connected to the plurality of light sources;
A switch driver for driving the switching element; And
And a drive control unit for controlling a current flowing through the light source unit. 12. The method of claim 11,
The light source driver includes:
A voltage detector for detecting a voltage applied to the light source; And
And a current detector for detecting a current flowing in the light source,
The switch driver includes:
Wherein the control unit receives the current data detected by the current detection unit and transmits the current data to the drive control unit and receives a switching control signal for controlling the current flowing in the light source from the drive control unit. 12. The method of claim 11,
The light source driver includes:
A voltage detector for detecting a voltage applied to the light source; And
And a current detector for detecting a current flowing in the light source,
The drive control unit may include:
Wherein the controller controls the current flowing in the light source based on the voltage data detected by the voltage detector, the current data detected from the switch driver, and the target current command. The method according to claim 1,
A light receiving unit for receiving light received from a front side;
A light source driving unit for driving the light source unit; And
And a processor for controlling the light source driver,
The processor comprising:
Wherein the controller controls the light source of at least a part of the plurality of light sources to be turned off or to change the intensity of the light when the level of the received light received by the light receiving unit is equal to or higher than a predetermined level. A vehicle comprising a headlamp apparatus for a vehicle according to any one of claims 1 to 14.

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