KR102529889B1 - lamp for vehicle - Google Patents

Abstract

A vehicle lamp according to an embodiment of the present invention includes at least one first light source generating light, a first rod connected to an incident surface of a first lens unit and guiding the light to an incident surface of the first lens unit, the first A first reflector for reflecting first light, which is a part of the light emitted from the lens unit, a second reflector for reflecting the first light and the second light emitted from the first lens unit, and the first light reflected by the second reflector. A second lens unit configured to form a first beam pattern by entering and emitting light and second light may be included.

Description

Lamp for vehicle {lamp for vehicle}

The present invention relates to a lamp for a vehicle, and more particularly, to a lamp for a vehicle that is disposed on both sides of the front of a vehicle and emits a beam pattern to ensure forward visibility when the vehicle is driving in a dark environment.

In general, a vehicle has various types of lamps having a lighting function for easily identifying an object located around the vehicle during night driving and a signal function for notifying other vehicles or road users of the driving state of the vehicle.

For example, head lamps and fog lamps mainly for the purpose of lighting functions, turn signal lamps for the purpose of signal functions, tail lamps, brakes Lamps (Brake lamp), side markers (Side Marker), etc. are provided, and these vehicle lamps are regulated by law for their installation standards and specifications so that each function can be sufficiently exerted.

Among vehicle lamps, headlamps form a low beam pattern or a high beam pattern to ensure the driver's forward vision when driving a vehicle in a dark environment such as at night, and plays a very important role in safe driving. are doing

In such vehicle headlamps, a headlamp that selectively forms a low beam pattern or a high beam pattern according to the shield member is provided as one lamp module, and a headlamp that forms a low beam pattern and a high beam pattern are formed. In some cases, the headlamps to be used are provided as separate lamp modules or units.

Vehicle headlamps usually maintain a low beam pattern to prevent glare to the driver of an oncoming vehicle or the driver of a preceding vehicle traveling in the opposite direction, and when driving at high speed or in a dark environment, the headlights are turned on as needed. A high beam pattern is formed to promote safe driving.

However, there is a case in which a high beam pattern is formed and driven without recognizing an oncoming vehicle or a preceding vehicle, and in this case, there is a great concern about safety accidents by causing glare to the driver of the oncoming vehicle or the preceding vehicle.

Therefore, recently, when an oncoming vehicle or a preceding vehicle is detected while driving with a high beam pattern formed, the light illumination angle, brightness, width, and length of the lamp are automatically adjusted to dazzle the driver of the oncoming vehicle or preceding vehicle. ABD (Adaptive Driving Beam) headlamps, that is, adaptive headlamps, which do not cause , are provided.

On the other hand, the adaptive headlamps are not turned on to prevent glare to the driver of the oncoming vehicle or the driver of the preceding vehicle. It can become non-uniform, which can deteriorate aesthetics.

Korean Patent Publication No. 2015-0118669 (2015.10.23.)

A technical problem to be solved by the present invention is to provide a vehicle lamp that increases the aesthetics of the vehicle lamp even if a plurality of second light sources are not turned on according to the low beam pattern formation.

The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the following description.

A vehicle lamp according to an embodiment of the present invention includes at least one first light source generating light, a first rod connected to an incident surface of a first lens unit and guiding the light to an incident surface of the first lens unit, the first A first reflector for reflecting first light, which is a part of the light emitted from the lens unit, a second reflector for reflecting the first light and the second light emitted from the first lens unit, and the first light reflected by the second reflector. A second lens unit configured to form a first beam pattern by entering and emitting light and second light may be included.

In addition, a plurality of second light sources and a plurality of second rods connected to the incident surface of the first lens unit to guide the light generated from the plurality of second light sources to the incident surface of the first lens unit, respectively, The third light incident on and out of the first lens unit by the second rod is incident on and out of the second lens unit to form a second beam pattern, and the first rod and the second rod have a tapered shape. , and the amount of light of the first light source may be formed smaller than the amount of light of the second light source.

In addition, a vehicle lamp according to an embodiment of the present invention supports the second lens unit, is formed long in the direction of the first lens unit from the second lens unit, and has a lens holder provided with the second reflector on an inner lower surface. An anti-glare portion protruding toward the first lens unit to prevent glare generated by the plurality of second light sources may be formed on an inner upper surface of the lens holder, and the first beam pattern and the first beam pattern may be formed. The two beam patterns are formed in different patterns, all of which are formed above the cut-off line, the first light source is located above the plurality of second light sources, and at least one of the plurality of second light sources is selectively turned on or As the light is turned off, a dark band is formed in a part of the pattern in the second beam, and when an oncoming vehicle or preceding vehicle is detected while the vehicle is running, the plurality of light sources are controlled to detect the oncoming or preceding vehicle. A dark band may be formed in an area, the first beam pattern may be a signal beam pattern, and the second beam pattern may be a high beam pattern.

According to the vehicle lamp according to an embodiment of the present invention, even if the plurality of second light sources are not turned on, the first beam pattern can be formed by the first light generated from the first light source, thereby increasing the aesthetics of the vehicle lamp. can

Effects according to the present invention are not limited by the contents exemplified above, and more various effects are included in the present specification.

1 is a view showing a vehicle lamp according to an embodiment of the present invention.
2 is a cross-sectional view of a first lamp unit according to an embodiment of the present invention.
3 is a cross-sectional view of a second lamp unit of a vehicle lamp according to an embodiment of the present invention.
4 is a view showing a second beam pattern and a third beam pattern of a vehicle lamp according to an embodiment of the present invention.
5 is a diagram showing a first beam pattern and a third beam pattern of a vehicle lamp according to an embodiment of the present invention.
6 and 7 are views showing a first lamp unit of a vehicle lamp according to another embodiment of the present invention.
8 is a cross-sectional view of a first lamp unit according to another embodiment of the present invention.
9 and 10 are exploded views according to another embodiment of the present invention.

Advantages and features of the present invention, and methods for achieving them, will become clear with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only the present embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs It is provided to fully inform the holder of the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification.

Thus, in some embodiments, well-known processing steps, well-known structures, and well-known techniques have not been described in detail in order to avoid obscuring the interpretation of the present invention.

Terms used in this specification are for describing embodiments and are not intended to limit the present invention. In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. The terms "comprises" and/or "comprising" as used in the specification do not preclude the presence or addition of one or more other components, steps and/or operations other than those mentioned. use as And "and/or" includes each and every combination of one or more of the recited items.

In addition, the embodiments described in this specification will be described with reference to perspective views, cross-sectional views, side views and/or schematic views, which are ideal exemplary views of the present invention. Accordingly, the shape of the illustrative drawings may be modified due to manufacturing techniques and/or tolerances. Therefore, embodiments of the present invention are not limited to the specific shapes shown, but also include changes in shapes generated according to manufacturing processes. In addition, in each drawing shown in the embodiment of the present invention, each component may be shown somewhat enlarged or reduced in consideration of convenience of explanation.

Hereinafter, preferred embodiments of a vehicle lamp according to the present invention will be described in detail based on the accompanying drawings.

1 is a view showing a vehicle lamp according to an embodiment of the present invention.

As shown in FIG. 1, a vehicle lamp according to an embodiment of the present invention forms a first lamp unit 100 and a low beam pattern to form a high beam pattern in order to secure a long-distance vision for a driver while driving a vehicle. It may be formed as a headlamp for a vehicle including the second lamp unit 200 at the same time.

Accordingly, the vehicle lamp is a dynamic type in which a dark zone is formed in a space where an oncoming vehicle or a preceding vehicle is located by changing a lamp angle by a swivel actuator when an oncoming vehicle or a preceding vehicle is detected while driving. , It can be divided into a matrix type in which a dark zone is formed in a space where an oncoming vehicle or a preceding vehicle is located by selectively turning on or off a plurality of light sources.

The first lamp unit 100 of the vehicle lamp according to an embodiment of the present invention will be described by taking a matrix type of the above two types as an example.

2 is a cross-sectional view of a first lamp unit of a vehicle lamp according to an embodiment of the present invention, and FIG. 3 is a cross-sectional view of a second lamp unit of a vehicle lamp according to an embodiment of the present invention.

Referring to FIG. 2 , the first lamp unit 100 according to an embodiment of the present invention includes a first light source 110, a second light source 120, a first rod 130, a second rod 140, One lens unit 150, a first reflector 160, a second reflector 170, and a second lens unit 180 may be included.

The first light source 110 and the second light source 120 may be formed to generate light having an amount or color suitable for the purpose of the vehicle lamp of the present invention, and a light emitting diode (LED) semiconductor light emitting device is used. Without limitation, a LD (Laser Diode) or bulb type lamp may be used as a light source. A halogen lamp, a high intensity discharge (HID) lamp, or the like may be used as a bulb type lamp. In addition, the first light source 110 and the second light source 120 may be formed in plurality according to design. Here, as at least one of the plurality of second light sources 120 is selectively turned on or off, a dark band P21 may be formed in a partial area of the second beam pattern P2.

The first rod 130 and the second rod 140 diffuse the light generated from the first light source 110 and the second light source 120 and guide it to the incident surface 152 of the first lens unit 150, respectively. To do this, it may be formed in a tapered shape so that the cross-sectional area gradually widens. In addition, the first rod 140 and the second rod 150 may be formed in plurality corresponding to the number of the first light source 110 and the second light source 120 .

The first lens unit 150 has an incident surface 152 and an exit surface 154 so that the light guided by the first rod 130 and the plurality of second rods 140 is incident on the incident surface 152. and may be formed to exit from the exit surface 154. Accordingly, the first rod 140 and the second rod 150 may be connected to the incident surface 152 of the first lens unit 150 .

Meanwhile, as shown in FIG. 2 , the exit surface 154 of the first lens unit may be formed to be stepped, but is not limited thereto. For example, the emission surface 154 of the first lens unit may also be formed as a plane.

The first reflector 160 reflects first light L1, which is a part of light generated from the first light source 110 and guided by the first rod 130 and incident and emitted from the first lens unit 150. The second reflector 170 is guided by the first rod by generating the first light L1 reflected from the first reflector 160 and the first light source 110, but in the first reflector unit It serves to reflect the second light L2, which is the remaining light that is not reflected, toward the second lens unit 180.

In addition, since the first reflector 160 may be positioned above the second reflector 170, the first reflector 160 reflects a portion of the light from the first light source 110 downward, and the second reflector 170 ) may reflect the first light L1 and the second light L2 reflected by the first reflector 160 upward.

Specifically, since the first light source 110 may be positioned above the optical axis Ax1 of the second lens unit 180, the first reflector 160 is higher than the optical axis Ax1 of the second lens unit 180. It can be located on the upper side. When the first reflector 160 is positioned above the optical axis Ax1 of the second lens unit 180, the first reflector 160 may reflect the first light L1 downward to cross the optical axis Ax1 of the second lens unit 180. .

Also, the second reflector 170 may be positioned below the optical axis Ax1 of the second lens unit 180 . As such, when the second reflector 170 is positioned below the optical axis Ax1 of the second lens unit 180, the second reflector 170 transmits the first light L1 and the second light L2. The light may be reflected upward so as to cross the optical axis Ax1 of the second lens unit 180 .

On the other hand, it is generated from the plurality of second light sources 120, is guided by the plurality of second rods 140, is incident on the incident surface 152 of the first lens unit 150, and is emitted from the exit surface 154. The third light L2 may be directly emitted toward the second lens unit 150 .

The second lens unit 150 inputs and emits the first light L1 and the second light L2 reflected by the second reflector 170 to form a first beam pattern P1, and the first lens unit A second beam pattern P2 may be formed by entering and exiting the third light L3 emitted from the exit surface 154 of (150).

Meanwhile, as shown in FIG. 2 , the first light source 110 may be provided above the second light source 120 . In addition, at least part of the first reflector 160 is located on the same line as the position of the first light source 110 or the first rod, or at least part of the first reflector 160 is located below the first light source, It may be positioned to block at least a portion of the light emitted from the first lens unit 150 . Accordingly, the first reflector 160 may be provided above the second light source 120 .

As such, the reason why at least a part of the first reflector 160 is located on the same line as the first light source or below the first light source is that the light generated from the first light source 110 and emitted from the first lens unit This is to prevent direct incident on the second lens unit 180 to prevent dazzling of drivers and pedestrians outside the vehicle.

If there is no first reflector 160, the first light L1 and the second light emitted from the first lens unit 150 directly enter and exit the second lens unit 180, causing glare to pedestrians or drivers. can cause In addition, the amount of light of the first light source 110 may be smaller than that of the second light source 120 in order to additionally prevent glare to pedestrians and drivers.

As shown in FIG. 3, the second lamp unit 200 includes a third light source 210, a third reflector 220, a shield unit 230, and a third lens unit to form a low beam pattern as described above. (240).

The third light source 210 generates the fourth light L4 like the first light source 110 and the second light source 120 described above, but the optical axis may be formed in a vertical direction, and the third reflector 220 The fourth light source L4 generated from the second light source 210 may be formed to be open from a bottom surface to a surface corresponding to the front side so as to reflect the fourth light L4 toward the third lens unit 240 forward.

The shield unit 230 is positioned between the third light source 210 and the third lens unit 240 into which the fourth light L4 reflected by the third reflector 220 is incident, and generated by the third light source 210. Light directly incident on the third lens unit 240 may be prevented.

The third lens unit 240 may be formed of an aspherical lens, and the fourth light L4 reflected by the third reflector 220 is incident and emitted to form a third beam pattern P3 that is a low beam pattern. can do.

Meanwhile, the first lens unit 150, the second lens unit 180, and the third lens unit 240 may be made of a light-transmitting material such as glass, synthetic resin, or silicon.

When a vehicle is stopped or driven at night or in a dark place, a driver usually turns on a lamp unit forming a low beam pattern and turns off a lamp unit forming a high beam pattern. That is, as described above, since all lamp units of the vehicle lamp are not turned on, a uniformly lit image is not formed, and thus aesthetics may be reduced.

However, in the vehicle lamp according to the embodiment of the present invention, even if the plurality of second light sources 120 of the first lamp unit 100 forming the second beam pattern P2, which is a high beam pattern, are turned off, the first lamp unit Since the first beam pattern P1 can be formed by at least one first light source 110 of (100), when an outside pedestrian or driver looks at the vehicle lamp of the present invention, glare is prevented and Since it can be recognized that all the lamp units 100 and 200 are lit at the same time, aesthetics can be increased.

4 is a view showing a second beam pattern, which is a high beam pattern, and a third beam pattern, which is a low beam pattern, formed by a plurality of second light sources of the present invention, and FIG. 5 is a diagram of a vehicle lamp according to an embodiment of the present invention. It is a diagram showing the first beam pattern and the third beam pattern.

Referring to FIG. 4 , the second beam pattern P2 may be formed as a plurality of split patterns by light emitted from the plurality of second light sources 120 .

For example, when a camera attached to the vehicle photographs the front in real time while the vehicle is driving, and the sensor detects the position of the oncoming vehicle C or the preceding vehicle based on the captured image, the controller ( (not shown) selectively controls some of the plurality of second light sources 120 to turn off or dim the lights, and removes a partial division pattern irradiated to the area where the oncoming vehicle C or the preceding vehicle is detected, Young belt (P21) can be formed.

Therefore, the driver can promote safe driving by driving while securing a long-distance view by means of the third beam pattern P3, which is a low beam pattern, and the second beam pattern P2, which is a high beam pattern, while driving. When an oncoming (C) vehicle or a preceding vehicle is detected, among the second beam patterns, part of the division pattern of the area where the oncoming vehicle (C) or the preceding vehicle is located is removed to prevent glare to the driver of the other vehicle. , it is also possible to promote safe driving.

Referring to FIG. 5 , a vehicle lamp according to an embodiment of the present invention includes a first beam pattern P1 formed by light L1 and L2 generated from at least one first light source 110 and a second unit lamp. The third beam pattern P3 formed by the third light source 210 of (200) may be formed at the same time.

That is, the plurality of second light sources 120 are normally turned off, and the third light source of the second lamp unit 200 is normally turned off to prevent glare to the driver of the oncoming (C) vehicle or the driver of the preceding vehicle traveling in the opposite direction. 210 may be turned on to maintain the third beam pattern P3 and at the same time, at least one first light source 110 may be turned on to form the first beam pattern P1.

Therefore, even if the plurality of second light sources 120 of the first lamp unit 100 of the present invention are turned off, the second light source 120 of the first lamp unit 100 and the third light source of the second lamp unit 200 Since all of them are turned on to form the first beam pattern and the second beam pattern, as described above, when an outside pedestrian or driver looks at the vehicle lamp of the present invention, glare is prevented and all the lamp units (100, 200) can be recognized as being lit, so aesthetics can be increased compared to the prior art.

In addition, since the first beam pattern P1 may be formed in the second beam pattern P2 area higher than the third beam pattern area P3, the first beam pattern P1 is a signal beam pattern irradiated with a sign or the like. can be formed as

Hereinafter, a first lamp unit of a vehicle lamp according to another embodiment of the present invention will be described.

6 and 7 are views showing a first lamp unit of a vehicle lamp according to another embodiment of the present invention, and FIG. 8 is a cross-sectional view of the first lamp unit according to another embodiment of the present invention, 9 and 10 are exploded views according to another embodiment of the present invention.

The first lamp unit 100 of a vehicle lamp according to another embodiment of the present invention may further include a lens holder 310 and an outer lens unit 320 .

Referring to FIGS. 6 to 8 , the lens holder 310 supports the first lens unit 150 and is formed long in the direction of the first lens unit from the second red unit, so that the second reflector ( 170) may be provided, and an anti-glare unit 312 protruding from the upper surface toward the first lens unit 150 to prevent glare generated by the plurality of second light sources 120 may be provided on the inner upper surface. can

Accordingly, the first light L1 reflected by the first reflector 160 and the second light L2 emitted from the first lens unit 150 are transmitted to the second reflector ( 170) is incident and emitted to the second lens unit to form a first beam pattern P1, and the third light L3 generated from the second light source 120 is emitted from the first lens unit 150 The second beam pattern P2 may be formed by passing through the lens holder 310 and entering and exiting the second lens unit 180 .

Meanwhile, referring to FIGS. 9 to 10 , the lens holder 310 may further include a separator 314 connecting the upper and lower surfaces, and the lens holder 310 is separated by the separator 314. A first opening 316 and a second opening 318 may be formed. In addition, the anti-glare part 312 and the second reflector 170 may be formed in plurality by the separating part 314 .

Meanwhile, the second lens unit 180 may be formed in a shape in which the first aspherical lens unit 182 and the second aspherical lens unit 184 are combined with the separation unit 314 as the center of the reference axis A. can

In addition, the incident surface 152 of the first lens unit 150 may include a first incident surface 152a and a second incident surface 152a formed symmetrically around the reference axis A, and The exit surface 154 of the lens unit 150 may include a first exit surface 154a and a second exit surface 154b formed symmetrically around the reference axis A, and the first incident surface 152a At least one first rod 130 and a plurality of second rods 140 may be connected to the second incident surface 152b, respectively, so that the plurality of first light sources 110 and the plurality of second light sources 120 Light generated in may be incident to the first lens unit 150 through the first incident surface 152a and the second incident surface 152b.

A plurality of first reflectors 160 may also be provided to reflect each light emitted from the first exit surface 154a and the second exit surface 154b of the first lens unit 150 .

As a result, the first to third lights emitted from the first exit surface 154a pass through the first opening 316 and enter the first aspherical lens unit 182, and are emitted from the second exit surface 154b. The first to third lights may pass through the second opening 318 and be incident to the second aspherical lens unit 184 .

Meanwhile, the outer lens unit 320 may be formed to accommodate the second lens unit 180 inside and be coupled to the outer surface of the lens holder 310 in order to protect the second lens unit 180 . The outer led portion 320 may also be made of a light-transmitting material such as glass, synthetic resin, or silicon.

Those skilled in the art to which the present invention pertains will understand that the present invention can be embodied in other specific forms without changing its technical spirit or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. The scope of the present invention is indicated by the following claims rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts should be construed as being included in the scope of the present invention. do.

110: first light source 120: second light source
130: first rod 140: second rod
150: first lens unit 152: incident surface
154: emission surface 160: first reflector
170: second reflector 180: second lens unit
200: second lamp unit 210: third light source
220: third reflector 230: shield unit
240: third lens unit 310: lens holder
312: glare prevention unit 314: separation unit
320: outer lens unit

Claims (11)

at least one first light source generating light;
a first lens unit;
a first rod connected to the incident surface of the first lens unit to guide the light to the incident surface of the first lens unit;
a first reflector for reflecting first light that is part of the light emitted from the first lens unit;
a second reflector for reflecting the first light and the second light emitted from the first lens unit;
a plurality of second light sources;
a plurality of second rods connected to the incident surface of the first lens unit to guide the light generated from the plurality of second light sources to the incident surface of the first lens unit; and
The first light and the second light reflected from the second reflector are incident and emitted to form a first beam pattern, and the third light emitted from the first lens unit is incident and emitted to form a second beam pattern. A vehicle lamp including a second lens unit. delete According to claim 1,
The first rod and the second rod are vehicle lamps formed in a tapered shape. According to claim 1,
A vehicle lamp in which the amount of light of the first light source is smaller than the amount of light of the second light source. According to claim 1,
A vehicle lamp further comprising a lens holder supporting the second lens unit, extending from the second lens unit toward the first lens unit, and having the second reflector provided on an inner lower surface. According to claim 5,
A vehicle lamp having an anti-glare portion formed on an inner upper surface of the lens holder to prevent glare generated by the plurality of second light sources by protruding toward the first lens unit. According to claim 1,
The first beam pattern and the second beam pattern are formed in different patterns, but both are formed above the cut-off line. According to claim 1,
The first light source is a vehicle lamp positioned above the plurality of second light sources. According to claim 1,
A vehicle lamp forming a dark band in a partial region of a pattern in the second beam as at least one of the plurality of second light sources is selectively turned on or off. According to claim 9,
If an oncoming or preceding vehicle is detected while the vehicle is driving,
A vehicle lamp for controlling the plurality of light sources to form a dark band in an area where the oncoming vehicle or preceding vehicle is sensed. According to claim 1,
The first beam pattern is a signal beam pattern, and the second beam pattern is a high beam pattern.

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