阅读说明：本技术 使用半导体发光元件的车辆灯 (Vehicle lamp using semiconductor light emitting element ) 是由 郑梦权 车重泽 于 2018-08-28 设计创作，主要内容包括：本发明提供一种灯,其特征在于,包括：半透半反镜,其设置有顶表面和底表面,并反射入射在底表面上的光的一部分,并将光的另一部分释放到外部；反射层,其被设置成面向半透半反镜的底表面；光导,其设置在半透半反镜与反射层之间,并且光导中的每一个设置有一端和另一端,并且光导全反射入射在一端上的光的一部分并且通过另一端将光释放到外部；以及多个光源,光源中的每一个发射光,其中,一端与光源交叠,使得从光源发射的光入射在一端上,并且光导的另一端穿过半透半反镜。(The present invention provides a lamp, characterized by comprising: a half mirror provided with a top surface and a bottom surface, and reflecting a part of light incident on the bottom surface and releasing another part of the light to the outside; a reflective layer disposed to face a bottom surface of the half mirror; a light guide disposed between the half mirror and the reflective layer, and each of the light guides is provided with one end and the other end, and the light guide totally reflects a part of light incident on the one end and discharges the light to the outside through the other end; and a plurality of light sources each of which emits light, wherein one end overlaps the light source so that the light emitted from the light source is incident on the one end, and the other end of the light guide passes through the half mirror.)

1. A lamp, comprising:

a half mirror having an upper surface and a lower surface, and configured to reflect a part of light entering the lower surface and to release the other part to the outside;

a reflector disposed to face a lower surface of the half mirror;

light guides disposed between the half mirror and the reflector, each light guide having one end and the other end such that a part of light incident to the one end is totally reflected to be released to the other end; and

a plurality of light sources that emit light that,

wherein the one end overlaps the light source such that light emitted from the light source is incident to the one end, and the other end of the light guide penetrates the half mirror.

2. The lamp of claim 1, wherein the light guide extends from the reflector in a direction perpendicular to a plane in which the reflector is disposed and penetrates the half mirror.

3. The lamp of claim 2, wherein the light guide has a plurality of side surfaces connecting the one end and the other end, and a portion of the light incident to the one end is released to the plurality of side surfaces and repeatedly reflected by the half mirror and the reflector.

4. The lamp of claim 3, wherein said light sources are disposed a predetermined distance apart from each other, and

wherein the light guide is arranged to overlap each of the light sources.

5. The lamp of claim 1, wherein the light guide has a plurality of side surfaces connecting the one end and the other end, and

wherein the lamp further comprises:

a plurality of side reflectors disposed to cover the plurality of side surfaces; and

an auxiliary light source disposed on the side reflector.

6. The lamp of claim 5, wherein the auxiliary light source is disposed between the half mirror and the reflector such that light emitted from the auxiliary light source is repeatedly reflected between the half mirror and the reflector.

7. The lamp of claim 1, wherein the light guide has a plurality of side surfaces connecting the one end and the other end, and

wherein the lamp further comprises a surface light source disposed to cover the plurality of side surfaces.

8. The lamp of claim 7, wherein the surface light source is disposed between the half mirror and the reflector and perpendicular to a plane in which the reflector is disposed such that light emitted from the surface light source is repeatedly reflected between the half mirror and the reflector.

9. The lamp of claim 1, wherein the light guide has a plurality of side surfaces connecting the one end and the other end, and

wherein the lamp further comprises:

a side reflector disposed to cover some of the plurality of side surfaces; and

a surface light source disposed to cover a remaining portion of the plurality of side surfaces.

10. The lamp of claim 9, wherein said side reflectors and said surface light source are disposed facing each other.

11. The lamp of claim 1, wherein said light guide overlaps some of said light sources.

12. The lamp of claim 11, wherein at least one light source that does not overlap with the light guides is disposed between adjacent light guides.

13. The lamp of claim 1, further comprising a controller configured to receive control commands generated during driving of a vehicle and to selectively turn on the light source based on the control commands.

14. The lamp of claim 13, wherein in a state where at least some of the light sources are all off, the controller turns on the at least some of the light sources in sequence in one direction until all of the at least some of the light sources are turned on.

15. The lamp of claim 14, wherein a time interval from when one of said at least some of said light sources is turned on until when all of said at least some of said light sources are turned on is in a range of 115ms to 195 ms.

16. The lamp of claim 1, wherein each of the light sources is disposed between the half-mirror and the reflector and on the reflector.

17. The lamp of claim 1, wherein each of said light sources is disposed on a lower side of said reflector, and

wherein the light guide is disposed to penetrate the reflector such that the one end overlaps the light source.

Technical Field

The present disclosure relates to a vehicle lamp or an automobile lamp and a control method thereof, and more particularly, to a vehicle lamp using a semiconductor light emitting device.

Background

A vehicle or an automobile is equipped with various lamps having an illumination function and a signaling function. Generally, a halogen lamp or a gas discharge lamp is generally used, but in recent years, a Light Emitting Diode (LED) has attracted attention as a light source for a vehicle lamp.

LEDs can increase the degree of freedom in design of lamps by minimizing their size and represent economic benefits due to the advantage of semi-permanent life, but most LEDs are currently produced in the form of packages. LEDs other than packages are themselves being developed as semiconductor light emitting devices that convert current into light, i.e., image display light sources provided in electronic devices such as information communication devices.

In recent years, attempts have been made to change the illumination (illumination) pattern of a lamp with the reduction in size of semiconductor light emitting devices. However, in order to realize various illumination patterns, a structure other than the light source is required, which results in an increase in size of the lamp, a decrease in brightness, and the like. Therefore, various implementations of the illumination pattern of the lamp are limited.

Disclosure of Invention

Technical problem

An aspect of the present disclosure is to provide a lamp capable of implementing a stereoscopic illumination pattern while minimizing the thickness thereof.

Another aspect of the present disclosure is to provide a lamp capable of implementing various illumination patterns.

It is yet another aspect of the present disclosure to provide a lamp that may be used as a turn signal lamp for a vehicle.

Technical scheme

To achieve aspects and other advantages of the present disclosure, there is provided a lamp including: a half mirror having an upper surface and a lower surface, and configured to reflect a part of light entering the lower surface and cause another part to be released to the outside; a reflector disposed to face a lower surface of the half mirror; light guides disposed between the half mirror and the reflector, each light guide having one end and the other end such that a part of light incident to the one end is totally reflected to be released to the other end; and a plurality of light sources emitting light, wherein one end overlaps the light sources such that the light emitted from the light sources is incident on the one end, and the other end of the light guide penetrates the half mirror.

In one embodiment, the light guide may extend from the reflector in a direction perpendicular to a plane in which the reflector is disposed and penetrate the half mirror.

In one embodiment, the light guide may have a plurality of side surfaces connecting one end and the other end, and a portion of light incident to one end may be released to the plurality of side surfaces and repeatedly reflected by the half mirror and the reflector.

In one embodiment, the light sources may be disposed to be spaced apart from each other by a predetermined distance, and the light guide may be disposed to overlap each of the light sources.

In one embodiment, the light guide may have a plurality of side surfaces connecting one end and the other end, and the present disclosure may further include: a plurality of side reflectors disposed to cover the plurality of side surfaces; and an auxiliary light source disposed on the side reflector.

In one embodiment, the auxiliary light source may be disposed between the half mirror and the reflector such that light emitted from the auxiliary light source is repeatedly reflected between the half mirror and the reflector.

In one embodiment, the light guide may have a plurality of side surfaces connecting the one end and the other end, and the lamp may further include a surface light source disposed to cover the plurality of side surfaces.

In one embodiment, the surface light source may be disposed between the half mirror and the reflector and disposed perpendicular to a plane in which the reflector is disposed such that light emitted from the surface light source is repeatedly reflected between the half mirror and the reflector.

In one embodiment, the light guide may have a plurality of side surfaces connecting one end and the other end, and the present disclosure may further include: a side reflector disposed to cover some of the plurality of side surfaces; and a surface light source disposed to cover the remaining portion of the plurality of side surfaces.

In one embodiment, the side reflector and the surface light source may be disposed to face each other.

In one embodiment, the light guide may overlap some of the light sources.

In one embodiment, at least one light source that does not overlap the light guides may be disposed between the light guides.

In one embodiment, the present disclosure may also include a controller configured to receive a control command generated during driving of the vehicle and to selectively turn on the light source based on the control command.

In one embodiment, in a state where at least some of the light sources are all turned off, the controller may turn on at least some of the light sources in sequence in one direction until all of the at least some of the light sources are turned on.

In one embodiment, the time interval from when one of the at least some of the light sources is turned on until when all of the at least some of the light sources are turned on may be in the range of 115ms to 195 ms.

In one embodiment, each of the light sources may be disposed between the half mirror and the reflector, and may be disposed on the reflector.

In one embodiment, each of the light sources may be disposed at a lower side of the reflector, and the light guide may be disposed to penetrate the reflector such that one end overlaps the light source.

Advantageous effects

According to the present disclosure, it is not necessary to arrange the light sources three-dimensionally in order to realize a stereoscopic illumination pattern. Accordingly, the present disclosure may achieve a stereoscopic illumination pattern while maintaining a slim thickness of the lamp.

Further, according to the present disclosure, a part of the light emitted from the light source is immediately released to the outside through the light guide, and another part of the light emitted from the light source is repeatedly reflected between the half mirror and the reflector and then released to the outside. The present disclosure ensures the amount of light of the lamp by the light guide, and realizes a stereoscopic illumination pattern by the half mirror and the reflector.

Drawings

Fig. 1 is a conceptual diagram illustrating one embodiment of a lamp for a vehicle (or a vehicle lamp) using a semiconductor light emitting device according to the present disclosure.

Fig. 2 is a conceptual diagram illustrating a flip-chip type semiconductor light emitting device.

Fig. 3 is a conceptual diagram illustrating a vertical type semiconductor light emitting device.

Fig. 4 is a conceptual diagram illustrating a cross-section of a lamp according to the present disclosure.

Fig. 5 is a conceptual diagram illustrating a cross-section of a lamp including an auxiliary light source according to the present disclosure.

Fig. 6 is a conceptual diagram illustrating a cross-section of a lamp including a surface light source according to the present disclosure.

Fig. 7 is a conceptual diagram illustrating a cross-section of a lamp including a surface light source and a side reflector according to the present disclosure.

Detailed Description

A description will now be given in detail according to exemplary embodiments disclosed herein with reference to the accompanying drawings. For a brief description with reference to the drawings, the same or equivalent components may be provided with the same or similar reference numerals, and the description thereof will not be repeated. In general, suffixes such as "module" and "unit" may be used to refer to an element or a component. The use of such suffixes herein is merely intended to facilitate the description of the specification, and the suffix itself is not intended to give any special meaning or function. In describing the present disclosure, if a detailed explanation of related known functions or configurations is considered to unnecessarily divert the gist of the present disclosure, such explanation has been omitted but will be understood by those skilled in the art. The drawings are provided to help easily understand the technical idea of the present disclosure, and it should be understood that the idea of the present disclosure is not limited by the drawings.

It will be understood that when an element such as a layer, area, or substrate is referred to as being "on" another element, it can be directly on the element or one or more intervening elements may also be present.

The vehicle lamp described in this specification may include a head lamp, a tail lamp, a position lamp, a fog lamp, a turn signal lamp, a brake lamp, an emergency lamp, a backup lamp, and the like. However, it is obvious to those skilled in the art that the configuration according to the embodiments described herein may also be applied to a new product type to be developed later if the device is a device capable of emitting light.

Fig. 1 is a conceptual diagram illustrating one embodiment of a lamp for a vehicle (or a vehicle lamp) using a semiconductor light emitting device according to the present disclosure.

A vehicle lamp (10) according to one embodiment of the present disclosure includes a frame (11) fixed to a vehicle body and a light source unit (12) mounted on the frame (11).

Wiring for supplying power to the light source unit (12) may be connected to the frame (11), and the frame (11) may be fixed to the vehicle body directly or by using a bracket. According to the present disclosure, a vehicle lamp may be provided with a lens unit that makes light emitted from a light source unit (12) more diffuse and sharp.

The light source unit (12) may be a flexible light source unit, which may be bent, twisted, folded or rolled by an external force.

In a non-curved state (e.g., a state having an infinite radius of curvature, hereinafter referred to as a first state) of the light source unit (12), the light source unit (12) is flat. When the first state is switched to a state in which the light source unit is bent by an external force (for example, a state having a limited radius of curvature, hereinafter referred to as a second state), the flexible light source unit may have a curved surface that is at least partially curved or bent.

The pixels of the light source unit (12) may be implemented by semiconductor light emitting devices. The present disclosure exemplarily illustrates a Light Emitting Diode (LED) as a type of a semiconductor light emitting device for converting a current into light. The LED may be a light emitting device having a small size, and thus may be used as a pixel even in the second state.

Fig. 2 is a conceptual diagram illustrating a flip-chip type semiconductor light emitting device, and fig. 3 is a conceptual diagram illustrating a vertical type semiconductor light emitting device.

Since the semiconductor light emitting device (150) has excellent luminance, it can constitute a single unit pixel even if it has a small size. The size of the individual semiconductor light emitting devices (150) may be less than 80 μm in length of one side thereof, and may be rectangular or square shaped devices. In this case, the area of the single semiconductor light emitting device is 10-10m²To 10-5m²And the interval between the light emitting devices may be in the range of 100 μm to 10 mm.

Referring to fig. 2, the semiconductor light emitting device (150) may be a flip chip type light emitting device.

For example, the semiconductor light emitting device includes a p-type electrode (156), a p-type semiconductor layer (155) on which the p-type electrode (156) is formed, an active layer (154) disposed on the p-type semiconductor layer (155), an n-type semiconductor layer (153) disposed on the active layer (154), and an n-type electrode (152) disposed on the n-type semiconductor layer (153) and spaced apart from the p-type electrode (156) in a horizontal direction.

Alternatively, the semiconductor light emitting device (250) may have a vertical structure.

Referring to fig. 3, the vertical type semiconductor light emitting device includes a p-type electrode (256), a p-type semiconductor layer (255) formed on the p-type electrode (256), an active layer (254) formed on the p-type semiconductor layer (255), an n-type semiconductor layer (253) formed on the active layer (254), and an n-type electrode (252) formed on the n-type semiconductor layer (253).

The plurality of semiconductor light emitting devices (250) constitute a light emitting device array, and an insulating layer is interposed between the plurality of light emitting devices (250). However, the present disclosure is not necessarily limited thereto, but may alternatively employ a structure in which an adhesive layer completely fills a gap between semiconductor light emitting devices without an insulating layer.

The insulating layer may be a transparent insulating layer including silicon oxide (SiOx) or the like. As another example, the insulating layer may be formed of a ring having excellent insulating characteristics and low light absorptionOxygen resin, polymer material such as methyl, phenyl silicone, or the like, or polymer material such as SiN, Al₂O₃Etc. to prevent short circuits between the electrodes.

Although the embodiments of the semiconductor light emitting device have been described above, the present disclosure is not limited to the semiconductor light emitting device, but may be alternately implemented by various semiconductor light emitting devices.

The lamp according to the present disclosure realizes a stereoscopic illumination pattern and various functions can be given to a single lamp by changing the illumination pattern.

Fig. 4 is a conceptual diagram illustrating a cross-section of a lamp according to the present disclosure.

Referring to fig. 4, a lamp according to the present disclosure may include a half mirror (310), a reflector (320), a light guide (330), and a plurality of light sources (350). Hereinafter, each of the constituent elements will be described, and the coupling relationship between the constituent elements will be described.

The half mirror (310) reflects a part of the light entering the lower surface and discharges the other part to the outside. For example, the half mirror (310) may reflect 50% of the light entering the lower surface and transmit the remainder through the half mirror. The reflectivity or transmissivity of the half mirror (310) may vary depending on the material of the half mirror (310).

Meanwhile, the half mirror (310) is not necessarily disposed at the outermost portion of the lamp according to the present disclosure. Light passing through the upper surface of the half mirror (310) may be released to the outside through an additional structure overlapping the upper surface. For example, the lamp according to the present disclosure may include a lens, a protective layer, etc., which overlaps the upper surface of the half mirror (310) and is disposed at a more outer side with respect to the half mirror (310). However, since these additional configurations are well known in the art, a detailed description thereof will be omitted.

Although only the half mirror (310) and the components disposed inside the half mirror (310) are described herein, the present disclosure does not preclude the provision of additional components outside the half mirror (310).

The reflector (320) is disposed below the half mirror (310) and is disposed to face a lower surface of the half mirror (310). Light reflected by the reflector (320) is directed to the lower surface of the half mirror (310). Light reflected from the lower surface of the half mirror (310) is guided to the reflector (320). Light incident between the reflector (320) and the half mirror (310) may be repeatedly reflected between the half mirror (310) and the reflector (320).

Meanwhile, a light guide (330) is disposed between the half mirror (310) and the reflector (320), and has one end and the other end. The light guide (330) totally reflects a part of the light entering one end and releases the totally reflected light to the other end. The other end is arranged to penetrate the half mirror (310).

Specifically, the light guide (330) may extend from the reflector (320) in a direction perpendicular to a plane in which the reflector (320) is disposed to penetrate the half mirror (310).

The light sources are disposed to overlap one end of the light guide (330) such that light emitted from each of the light sources (350) is incident on the one end. The light sources may be disposed to be spaced apart from each other by a predetermined distance, and the light guide may be disposed to overlap each of the light sources.

In one embodiment, the reflector (320) may include a plurality of apertures, and each of the light sources (350) may be disposed in an aperture disposed in the reflector (320). One end of the light guide (330) is disposed in the aperture. Therefore, most of the light emitted from the light source (350) is incident on one end of the light guide (330).

In another embodiment, the reflector (320) may have a plurality of concave units. Each of the light sources (350) may be disposed within a recessed cell disposed in the reflector (320). One end of the light guide (330) is disposed in the recess unit. Therefore, most of the light emitted from the light source (350) is incident on one end of the light guide (330).

In both embodiments, each of the light sources (350) is disposed on the reflector (320). On the other hand, each of the light sources (350) may be disposed at a lower side of the reflector (320).

In one embodiment, each of the light sources (350) may be disposed on an underside of the reflector (320). The light guide (330) penetrates the reflector (320), and one end of the light guide (330) overlaps the light source (350). Accordingly, light emitted from the light source (350) may be incident on one end of the light guide (330).

Since the other end of the light guide (330) is disposed to pass through the half mirror (310), a portion of the light entering the one end of the light guide (330) passes through the half mirror (310) and is immediately discharged to the outside. Thus, a bright illumination pattern is formed around the light guide.

Meanwhile, a portion of light emitted from the light source (350) and then incident on one end of the light guide (330) is repeatedly reflected between the half mirror (310) and the reflector (320), and then released to the outside. Thus, a stereoscopic illumination pattern can be formed.

In detail, the light guide (330) has a plurality of side surfaces connecting one end and the other end, and a portion of light incident to one end of the light guide (330) is discharged to any one of the plurality of side surfaces, then repeatedly reflected between the half mirror (310) and the reflector (320), and then discharged to the outside.

On the other hand, light that is not incident on one end of the light guide (330) but is incident between the half mirror (310) and the reflector (320) is also repeatedly reflected between the half mirror (310) and the reflector (320) and then released to the outside.

Meanwhile, in order to increase the brightness of the stereoscopic illumination pattern, some of the light sources (350) may be disposed not to overlap the light guide (330). Light sources that do not overlap the light guides (330) may be disposed between the light guides (330).

Light emitted from a light source that does not overlap with the light guide (330) is released between the half mirror (310) and the reflector (320), and then repeatedly reflected between the half mirror (310) and the reflector (320) to be released to the outside. Accordingly, since light emitted from a light source that does not overlap with the light guide (330) is used only to form the stereoscopic illumination pattern, the brightness of the stereoscopic illumination pattern formed on the lamp can be increased.

In summary, the present disclosure allows for the formation of a stereoscopic illumination pattern around a bright illumination pattern formed by a light guide (330). As described above, the present disclosure achieves a stereoscopic illumination pattern by using a half mirror (310), a reflector (320), and a light guide (330).

Hereinafter, various modified embodiments of the lamp according to the present disclosure will be described.

Fig. 5 is a conceptual diagram illustrating a cross-section of a lamp including an auxiliary light source.

Referring to fig. 5, the lamp according to the present disclosure may further include: a plurality of side reflectors (360) disposed to cover a plurality of side surfaces disposed on the light guide (330); and an auxiliary light source (340) disposed on the side reflector.

The side reflector (360) reflects light that enters one end of the light guide (330) and is guided to a side surface of the light guide (330). Accordingly, the side reflector (360) increases the amount of light guided to the other end of the light guide (330) to increase the amount of light of the lamp. Light incident on one end of the light guide (330) is mostly released to the other end through the side reflector (360).

Meanwhile, the auxiliary light source (340) emits light between the half mirror (310) and the reflector (320). To this end, an auxiliary light source (340) is disposed between the half mirror (310) and the reflector (320). Light emitted from the auxiliary light source (340) is repeatedly reflected by the half mirror (310), the reflector (320), and the side reflector (360), and then released to the outside. Thus, a stereoscopic illumination pattern can be formed.

As described above, the present disclosure realizes a relatively bright illumination pattern by a plurality of light sources, and realizes a stereoscopic illumination pattern by an auxiliary light source.

Meanwhile, the present disclosure may implement a stereoscopic illumination pattern by using a surface light source.

Fig. 6 is a conceptual diagram illustrating a cross section of a lamp including a surface light source.

Referring to fig. 6, the present disclosure may further include a surface light source (370) disposed to cover a side surface of the light guide.

The surface light source (370) emits light between the half mirror (310) and the reflector (320). To this end, a surface light source (370) is disposed between the half mirror (310) and the reflector (320). Light emitted from the surface light source (370) is repeatedly reflected between the half mirror (310) and the reflector (320) and then released to the outside. Thus, a stereoscopic illumination pattern can be formed.

Here, the surface light source (370) is a light source that can be recognized as a surface when moved a predetermined distance away from the light source. Therefore, the surface light source (370) does not necessarily have a planar-shaped light emitting region, but may be a light source in which point light sources are arranged in an array form.

Meanwhile, when the light guide (330) extends perpendicular to the plane in which the reflector (320) is disposed, the surface light source (370) disposed on the side surface of the light guide (330) may be arranged perpendicular to the plane in which the reflector (320) is disposed.

Meanwhile, the surface light source (370) may be configured to reflect light that enters one end of the light guide (330) and is guided to a side surface of the light guide (330). Accordingly, the surface light source (370) increases the amount of light guided to the other end of the light guide (330) to increase the amount of light of the lamp. Light incident to one end of the light guide (330) is mostly released to the other end by the surface light source (370).

As described above, the present disclosure realizes a relatively bright illumination pattern by a plurality of light sources, and realizes a stereoscopic illumination pattern by a surface light source.

Meanwhile, the present disclosure may implement a stereoscopic illumination pattern by using a side reflector and a surface light source.

Fig. 7 is a conceptual diagram illustrating a cross-section of a lamp including a surface light source and a side reflector according to the present disclosure.

Referring to fig. 7, a lamp according to the present disclosure may include a side reflector (360) disposed to cover some of a plurality of side surfaces and a surface light source (370). The side reflector (360) and the surface light source (370) may be disposed to face each other, and light emitted from the surface light source (370) may be reflected by the side reflector (360).

The surface light source (370) emits light between the half mirror (310) and the reflector (320). Light emitted from the surface light source (370) is repeatedly reflected by the half mirror (310), the reflector (320), and the side reflector (360), and then released to the outside. Thus, a stereoscopic illumination pattern can be formed.

Meanwhile, the side reflector (360) and the surface light source (370) may be configured to reflect light that enters one end of the light guide (330) and is guided to a side surface of the light guide (330). Accordingly, the side reflector (360) and the surface light source (370) increase the amount of light guided to the other end of the light guide (330) to increase the amount of light of the lamp.

As described above, the present disclosure may implement a stereoscopic illumination pattern by using a side reflector and a surface light source.

Meanwhile, the present disclosure may further include a controller configured to receive a control command generated during driving of the vehicle and to selectively turn on the light source based on the control command.

Here, the control command may be generated by a sensing result of a sensing unit provided in the vehicle or a user input applied through an interface unit.

The sensing unit may sense a condition of the vehicle. The sensing unit may include an attitude sensor (e.g., yaw sensor, roll sensor, pitch sensor, etc.), a collision sensor, a wheel sensor, a speed sensor, a roll sensor, a weight detection sensor, a heading sensor, a gyro sensor, a position module, a vehicle forward/backward movement sensor, a battery sensor, a fuel sensor, a tire sensor, a steering sensor through rotation of a handle, a vehicle interior temperature sensor, a vehicle interior humidity sensor, an ultrasonic sensor, a lighting sensor, an accelerator position sensor, a brake pedal position sensor, etc.

The sensing unit may acquire sensing signals regarding vehicle-related information such as a posture, a collision, an orientation, a position (GPS information), an angle, a speed, an acceleration, a roll, a forward/backward movement, a battery, fuel, tires, a lamp, an internal temperature, an internal humidity, a rotation angle of a steering wheel, external lighting, pressure applied to an accelerator, pressure applied to a brake pedal, and the like.

The sensing unit may further include an accelerator sensor, a pressure sensor, an engine speed sensor, an Air Flow Sensor (AFS), an Air Temperature Sensor (ATS), a Water Temperature Sensor (WTS), a Throttle Position Sensor (TPS), a TDC sensor, a Crankshaft Angle Sensor (CAS), and the like.

The interface unit may be used as a path that allows the vehicle to interface with various types of external devices connected thereto. For example, the interface unit may be provided with a port connectable with the mobile terminal and connected to the mobile terminal through the port. In this case, the interface unit may exchange data with the mobile terminal.

The controller provided in the vehicle may generate a control command for controlling the lamp based on a sensing result of the sensing unit or a user input applied through the interface unit.

The controller provided in the lamp may receive the control command and change the illumination pattern corresponding to the tail lamp to the illumination pattern corresponding to the turn signal lamp.

In one embodiment, the controller may turn on at least some of the light sources disposed on the lamp to implement a tail lamp of the vehicle. The controller turns off at least some of the light sources when receiving a control command corresponding to the turn signal, and sequentially turns on at least some of the light sources in one direction until all of the at least some of the light sources are turned on in a state where all of the at least some of the light sources are turned off. Thus, a turn signal lamp can be realized.

Here, a time interval from when one of the at least some of the light sources is turned on until when all of the at least some of the light sources are turned on may be in a range of 115ms to 195 ms.

It will be apparent to those skilled in the art that the present disclosure may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

Furthermore, the above detailed description should not be construed as limiting in all aspects, but rather as illustrative. The scope of the disclosure should be determined by reasonable interpretation of the appended claims and all changes which come within the range of equivalency of the disclosure are intended to be embraced therein.