KR20170001109U - Lamp for vehicle - Google Patents

Abstract

The present invention relates to a lamp for a vehicle, comprising: a light source; A reflector module for reflecting the light emitted from the light source and dispersing the light into indirect light; And a lens for uniformly illuminating the surface illuminated by the indirect light reflected by the reflector module, wherein the reflector module is disposed in the light irradiation direction of the light source, A main reflector for reflecting light to be irradiated in a different direction; And at least one additional reflector for reflecting the light reflected by the main reflector toward the lens.

Description

Lamp for vehicle

The present invention relates to a lamp for a vehicle, and more particularly to a lamp for a vehicle in which uniform surface light emission is performed to improve appearance quality.

2. Description of the Related Art Generally, a vehicle has various types of lamps having a lighting function for easily confirming an object located in the vicinity of the vehicle at nighttime, and a signal function for notifying other vehicles or road users of the running state of the vehicle.

For example, a head lamp and a fog lamp mainly for lighting function, a turn signal lamp for a signal function, a tail lamp, a brake lamp, a side marker and the like are provided. It is stipulated by law as to the installation standard and specification so that each function is fully exercised.

Of these lamps, a rear combination lamp having a back-up lamp and a tail-brake lamp and a turn signal lamp as one assembly is provided at the rear of the vehicle.

The tail-brake lamp includes a tail light having a function of notifying the position of the own vehicle to the rear vehicle at nighttime, and a stop light having a function of notifying the rear vehicle that the vehicle is decelerating .

Since tail lights and stop lights in a tail-brake lamp normally emit the same red light, stop lights that are turned on only when the brake pedal is depressed are set higher than those of a tail lamp that is always kept lit in a dark place Thereby ensuring the visibility of the rear vehicle.

Bulb has been mainly applied as a light source in a conventional rear combination lamp. Recently, however, a light emitting diode (LED) having a long lifetime and excellent lighting performance has been applied.

However, since the light generated in the case of the LED is irradiated with a direct-light type, the light is irradiated with a strong light on the front side while the light is irradiated with a weak light on the hot spot, There is a disadvantage in that this occurs.

In addition, as mentioned above, the LED has a disadvantage in that the brightness is excellent, but a plurality of LEDs are arranged at a minimized interval as the light irradiation range is narrow, thereby increasing manufacturing cost due to an increase in the number of LEDs, which are expensive components .

Korean Patent Publication No. 2003-0016948 (Mar. 03, 2003)

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is a technical object of the present invention to provide a surface light emitting lighting image having uniform illuminance by indirect light while reducing the number of LEDs, And to provide a lamp for a vehicle which can improve appearance quality.

Another technical problem to be solved by the present invention is to provide a vehicle lamp that reduces manufacturing costs by reducing the number of parts.

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

According to an aspect of the present invention, there is provided a lamp for a vehicle, comprising: a light source; A reflector module for reflecting the light emitted from the light source and dispersing the light into indirect light; And a lens for uniformly illuminating the surface illuminated by the indirect light reflected by the reflector module, wherein the reflector module is disposed in the light irradiation direction of the light source, A main reflector for reflecting light to be irradiated in a different direction; And at least one additional reflector for reflecting light reflected by the main reflector toward the lens.

Here, the at least one additional reflector may include a first additional reflector and a second additional reflector, which are disposed at the first facing each other with respect to the light source.

The main reflector may further include a first inclined surface for reflecting the light emitted from the light source in the first direction and a second inclined surface for reflecting the light emitted from the light source in the second direction, And all of the reflective surfaces including the first inclined surface and the second inclined surface of the main reflector may be formed with a facet constituting a reflective layer coated with aluminum or chromium.

On the other hand, the first additional reflector or the second additional reflector may be disposed in the first direction, and the second additional reflector or the first additional reflector may be disposed in the second direction.

The light source may also be fixedly coupled to the reflector module and disposed between the first additional reflector and the second additional reflector.

The first additional reflector and the second additional reflector may also be in the form of a parabola wherein the radius of curvature of each of the reflective surfaces of the first additional reflector and the second additional reflector may be different or equal to each other have.

Further, facets formed by coating with aluminum or chromium to form a reflective layer may be formed on the respective reflective surfaces of the first additional reflector and the second additional reflector.

Meanwhile, the lens may include an inner lens that emits light while transmitting indirect light reflected by the reflector module; And an outer lens disposed on the outer side of the inner lens, wherein the inner lens is disposed so as to be exposed to the outside of the bezel such that the indirect light reflected by the first additional reflector and the second additional reflector is transmitted, And a second lens disposed inside the bezel,

In this case, the first lens is disposed in the vicinity of the same axial line in the horizontal direction with respect to the first additional reflector and the second additional reflector, and the second lens is disposed in the same axial line direction as the light source and the main reflector, It is preferable that the light source is not exposed to the outside by the bezel.

Also, at least one of an incident surface and an emission surface of the first lens may be formed with a surface roughness for diffusing the transmitted light, and the surface roughness may be a knurled surface, It can be a rough surface, or a parcel.

Other specific details of the present invention are included in the detailed description and drawings.

According to the vehicle lamp according to the embodiment of the present invention, even a small number of LEDs can provide an effect of improving the appearance quality of a vehicle by realizing a surface lighted lighting image having uniform illuminance by indirect light.

In addition, according to the vehicle lamp according to the embodiment of the present invention, it is possible to realize an image of a surface light emission lighting having a uniform illuminance even if the number of LEDs is reduced, thereby reducing the overall manufacturing cost.

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

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view schematically showing a conventional internal structure of a lamp for a vehicle. FIG.
2 is an image drawing showing that a hot spot region is generated by a conventional vehicle lamp;
3 is a perspective view showing a state in which a vehicle lamp according to an embodiment of the present invention is mounted on a vehicle.
4 is a cross-sectional view schematically showing a configuration of a vehicle lamp according to an embodiment of the present invention;
5 is a schematic sectional view showing a path of light irradiated from a light source in Fig.
6 is a view showing a state in which a vehicle lamp according to an embodiment of the present invention realizes surface light emission of uniform illumination.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. It should be understood, however, that the present invention is not limited to the embodiments disclosed herein but may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully inform the owner of the category of design, and the design is only defined by the scope of the claim. Like reference numerals refer to like elements throughout the specification.

In addition, the embodiments described herein will be described with reference to cross-sectional views and / or schematic drawings that are ideal illustrations of the present invention. Thus, the shape of the illustrations may be modified by manufacturing techniques and / or tolerances. In the drawings, the constituent elements in the drawings may be somewhat enlarged or reduced in view of convenience of explanation. Like reference numerals refer to like elements throughout the specification.

Before describing a preferred embodiment of the present invention, the prior art will be briefly described with reference to FIG. 1 and FIG. 2 in order to facilitate understanding of the present invention.

FIG. 1 is a cross-sectional view schematically showing a conventional internal structure of a lamp, and FIG. 2 is an image drawing showing that a hot spot region is generated by a conventional vehicle lamp.

As shown in the figure, a conventional vehicular lamp 10 includes a light source 12, a reflector 14, and a lens 16. For reference, in the drawing, reference numeral 18 denotes a bezel.

When the LED, which is a semiconductor light emitting element, is applied as the light source 12, the light emitted from the LED due to the linearity of the LED light is transmitted through the lens in a direct light type, A hot spot region H is generated in the region.

In recent years, automotive lamps have become a very important factor in the exterior quality of a vehicle in addition to the lighting function and the signal function. Particularly, in the nighttime, the exterior quality of the entire vehicle is determined according to the lighting image of the vehicle lamp. When a hot spot region is generated in the lens of the vehicle lamp, the overall appearance quality of the vehicle may be deteriorated.

In addition, in the case of LEDs applied to the conventional automotive lamp 10, since the LEDs are arranged closely to the lens 16 at positions corresponding to the lens 16 due to the directivity of the irradiated light, a large number of LEDs are applied, .

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention for solving the drawbacks of the conventional vehicle lamp will be described in detail with reference to the accompanying drawings.

3 is a perspective view showing a state in which a vehicle lamp according to an embodiment of the present invention is mounted on a vehicle.

4 is a sectional view schematically showing the structure of a vehicle lamp according to an embodiment of the present invention, and Fig. 5 is a schematic sectional view showing a path of light irradiated from a light source in Fig.

As shown in Fig. 3, the vehicle lamp 100 according to the embodiment of the present invention is a rear lamp disposed on both sides of the rear of the vehicle. However, the rear lamp is not limited thereto. The same can be applied to various lamps including a head lamp.

4 and 5, the lamp 100 for a vehicle according to an embodiment of the present invention may be configured to include a light source 110, a reflector module 200, and a lens.

As the light source 110, a light emitting diode (LED), which is a semiconductor light emitting element, may be applied, and a plurality of LEDs that generate light of the same or different colors may be applied according to the required light amount or use.

In the vehicle lamp 100 according to the embodiment of the present invention, the light source 110 is an LED. However, in some cases, various kinds of light sources such as a bulb, a laser, .

The reflector module 200 includes at least one reflector 210, 220, and 230 that reflects light emitted from the light source 110 at least one time in a direction different from the direction of light irradiation, . ≪ / RTI >

For example, a main reflector 210 for reflecting the light emitted from the light source 110 in the other direction, a first additional reflector 220 for reflecting the light reflected from the main reflector 210 again, Additional reflector 230 may be included.

The main reflector 210 is disposed in the vicinity of the light source 110 in the direction opposite to the light source 110, that is, on the same axis line that is horizontal to the light irradiation direction of the light source 110, At least one inclined surface 212 or 214 having a radius of curvature may be formed on a surface facing the light source 110 in order to reflect light emitted from the light source 110 in a different direction.

Preferably, a first inclined surface 212 for reflecting the direct light emitted from the light source 110 in the first direction and a second inclined surface 214 for reflecting the light in the second direction, which is different from the first direction, In this case, the first inclined surface 212 and the second inclined surface 214 may be formed in directions opposite to each other.

Here, the first direction may be one side with respect to the light source 110, and the second direction may be the other side with respect to the light source 110.

That is, the light reflected through the first inclined surface 212 of the main reflector 210 is irradiated in the first direction, which is one of the directions, about the light source 110, and the second inclined surface 214 of the main reflector 210 The light reflected from the light source 110 may be irradiated in the second direction, which is the other side, with the light source 110 as a center.

The first inclined surface 212 and the second inclined surface 214 of the main reflector 210 are inclined so as to have a radius of curvature as described above and the light irradiated on the inner surfaces of the respective inclined surfaces 212 and 214 is dispersed A facet or an optic (hereinafter collectively referred to as a facet) may be formed, which is coated with aluminum (Al) or chromium (Cr) to form a reflective layer so as to reflect the light.

For example, facets may be formed on all of the reflective surfaces of the main reflector 210 other than the first inclined surface 212 and the second inclined surface 214.

At least one facets may be formed in the same planar shape, and the facets may be arranged in the same direction or in different directions when there are a plurality of facets.

Further, the facets may be formed in a plurality of different planar shapes, in which case the plurality of facets may be arranged in the same direction or in different directions.

On the other hand, a first additional reflector 220 is disposed in a first direction, which is one side of the light source 110, and a second additional reflector 230 is disposed in a second direction of the other side of the light source 110 .

Conversely, a second additional reflector 230 is disposed in a first direction, which is one side of the light source 110, and a first additional reflector 220 is disposed in a second direction, which is the other side of the light source 110 .

That is, the first additional reflector 220 and the second additional reflector 230 may be arranged in the directions opposite to each other, such as up, down, left, and right, with the light source 110 as a center.

Since the light source 110 is disposed between the first additional reflector 220 and the second additional reflector 230, the light source 110 is not fixedly coupled to the separate base plate, The first additional reflector 220 and the second additional reflector 230, respectively. Accordingly, the overall assemblability of the lamp 100 for a vehicle can be improved.

The first additional reflector 220 and the second additional reflector 230 can reflect the light reflected and irradiated from the first inclined face 212 and the second inclined face 214 of the main reflector 210, The inner reflection surfaces 222 and 232 may be formed in a parabola shape.

Accordingly, the first additional reflector 220 and the second additional reflector 230 have curved surfaces 222 and 232, respectively. At this time, the curvature of the first additional reflector 220 and the second additional reflector 230 It is preferable that the radii are formed to be different from each other, and the reason thereof will be described later in detail.

The facets 222 and 232 of the first additional reflector 220 and the second additional reflector 230 are formed with a facet that forms a reflective layer by being coated with aluminum or chromium so as to reflect the light while diffusing the light. .

At least one facets formed on the reflecting surfaces 222 and 232 of the first additional reflector 220 and the second additional reflector 230 may be formed in the same plane or may be arranged in the same direction when there are a plurality of facets, They can be arranged in different directions.

Further, the facets may be formed in a plurality of different planar shapes, in which case the plurality of facets may be arranged in the same direction or in different directions.

The lens includes an inner lens 300 on which surface light is emitted while indirect light reflected by the reflector module 200 is transmitted and an outer lens 300 disposed on the outer side of the inner lens 300 and exposed to the outside. (Not shown). ≪ / RTI >

The inner lens 300 of the lens transmits at least the light that is indirectly reflected by the reflector module 200 and emits indirect light. The inner lens 300 includes at least one first lens 310 and 312 arranged to be exposed outside the bezel 400 And a second lens 320 disposed inside the bezel 400 and not exposed to the outside.

Here, the first lenses 310 and 312 of the inner lens 300 may be disposed in the same direction as the first additional reflector 220 and the second additional reflector 230 of the reflector module 200, The second lens 320 may be arranged in the same direction as the light source 110 and the main reflector 210 in the vicinity of the same axis.

Therefore, the indirect light reflected by the first additional reflector 220 and the second additional reflector 230 can be transmitted through the first lenses 310 and 312 of the inner lens 300 while being irradiated to the outside, The detailed operating relationship thereof will be described later in detail.

Since the light source 110 is disposed in the vicinity of the main reflector 210 and the second lens 320 in the horizontal direction and in the vicinity of the same axis in the horizontal direction and the second lens 320 is disposed inside the bezel 400 The light source 110 is obscured by the bezel 400 and is not exposed to the outside.

That is, the light source 110 is not disposed in parallel with the first lenses 310 and 312 of the inner lens 300 that are exposed to the outside in the horizontal direction in the vicinity of the same axis, but the bezel 400, the second lens 320, The bezel 400 is hidden by the bezel 400 so that the reflector 210 is not exposed to the outside, so that the appearance can be improved.

In order to support the embodiment of the present invention, two inclined surfaces 212 and 214 of the main reflector 210 are formed, and a reflector that reflects light reflected from the two inclined surfaces 212 and 214 toward the lens is a light source The first additional reflector 220 and the second additional reflector 230 are formed to be opposed to each other with respect to the first additional reflector 110. However, the present invention is not limited thereto.

That is, at least one or a plurality of inclined surfaces 212 and 214 of the main reflector 210 that reflects the light emitted from the light source 110 in a direction different from the light irradiation direction may be provided, and the inclined surfaces 212 and 214 of the main reflector 210 Reflectors for reflecting the reflected light back toward the lens may also be formed in a number corresponding to the number of slopes of the main reflector 210.

In order to support the embodiment of the present invention, the cross section of the first lenses 310 and 312 of the inner lens 300 is also two columns corresponding to the first additional reflector 220 and the second additional reflector 230, However, the present invention is not limited thereto, and may be formed in a number of sections corresponding to the number of reflectors that reflect the light reflected by the main reflector 210 toward the lens.

4 and 5, when it is assumed that the cross sections of the first lenses 310 and 312 of the inner lens 300 that transmits light to the outside according to the surface light emission are arranged in two rows in the vertical direction, 110 are reflected by the first inclined surface 212 and the second inclined surface 214 of the main reflector 210 and are incident on the first inclined surface 212 of the main reflector 210 and the first inclined surface 212 of the main reflector 210, The light reflected by the second inclined plane 214 is reflected by the first additional reflector 220 and the second additional reflector 230 and then transmitted through the respective first lenses 310 and 312 so that the light The light source 110 may be disposed in a row.

That is, even in a state where one row of the light sources 110 is disposed between the first additional reflector 220 and the second additional reflector 230, the light sources 110 of the first row are arranged such that the two rows of the first lenses 310 and 312 are uniform It is possible to reduce the number of the light sources 110 and reduce the number of LEDs, which are high-priced parts. As a result, the vehicle lamp 100 can be reduced in number, Can be reduced.

For example, referring to the conventional diagram of FIG. 1, when the end faces of the first lenses 310 and 312 of the inner lens 300 that transmits light to the outside according to surface light emission are arranged in two rows, 310 and 312 and the light source 110 in the column corresponding to the vicinity of the same line in the horizontal direction. However, in the case of the lamp 100 for a vehicle according to the embodiment of the present invention, Indirect light by the reflector module 200 is used, so that the number of the light sources 110 can be reduced as described above.

On the other hand, when the first lenses 310 and 312 of the inner lens 300 are arranged in two rows, the shapes of the first lenses 310 and 312 of the respective rows, that is, the shapes of the incident and exit surfaces, As the distance between the light source 110 and the first additional reflector 220 and the second additional reflector 230 becomes different from each other, the curvature of each of the reflecting surfaces 222 and 232 of the first additional reflector 220 and the second additional reflector 230 The radii are preferably different from each other in consideration of the above-mentioned different portions.

For example, if the shapes of the first lenses 310 and 312 of the inner lens 300 are the same, or if the distance between the light source 110 and the first additional reflector 220 and the second additional reflector 230 are all the same, The radius of curvature of each of the reflective surfaces 222 and 232 of the first additional reflector 220 and the second additional reflector 230 may be the same. However, when the first lenses 310 and 312 are different from each other, The radius of curvature of each of the reflection surfaces 222 and 232 of the first additional reflector 220 and the second additional reflector 230 may be different.

The surface of the first lens 310 or 312 of the inner lens 300 which is reflected and transmitted by the first additional reflector 220 and the second additional reflector 230 is further enhanced in surface emission of light transmitted by light scattering (Not shown) may be formed so as to be formed in such a manner as to be formed.

The surface grinding may be a knurling machined surface in which concave portions and convex portions are arranged in an alternating manner, or a rough surface sanded or may be parchmented.

This surface grating can be selectively formed on any one of the incident surface and the emission surface of the first lenses 310 and 312, and in some cases, it may be formed on both the incident surface and the emission surface.

6 is a view showing a state in which the vehicular lamp 100 realizes surface light emission of uniform illuminance according to the embodiment of the present invention described above. In this embodiment, the indirect light, not the direct light of the light source 110, And light is emitted on the surface.

As described above, according to the vehicle lamp 100 according to the embodiment of the present invention, surface light emission is performed as indirect light by using a small number of light sources 110, so that a surface light emission illumination image having uniform illumination can be realized It is seen that the overall appearance of the vehicle is greatly improved.

Those skilled in the art will appreciate that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the foregoing description, and all changes or modifications derived from the meaning and scope of the claims and equivalents thereof are included in the scope of the present invention Should be interpreted.

100: vehicle lamp 110: light source
200: reflector module 210: main reflector
212: first inclined plane 214: second inclined plane
220: first additional reflector 222: reflecting surface
230: second additional reflector 232: reflecting surface
300: Inner lens 310, 312: First lens
320: Second lens 400: Bezel

Claims (12)

Light source;
A reflector module for reflecting the light emitted from the light source and dispersing the light into indirect light;
And a lens for emitting surface light of uniform illumination as the indirect light reflected by the reflector module is transmitted therethrough,
The reflector module includes:
A main reflector disposed in a light irradiation direction of the light source and reflecting the light emitted from the light source toward the lens in a different direction;
And at least one additional reflector for reflecting light reflected by the main reflector toward the lens. The method according to claim 1,
Wherein the at least one additional reflector comprises:
And a first additional reflector and a second additional reflector disposed at positions opposite to each other with respect to the light source. The method according to claim 1,
The main reflector includes:
And a second inclined surface that reflects the light emitted from the light source in a second direction on a surface facing the light source, the first inclined surface reflecting the light emitted from the light source in a first direction. The method according to claim 1,
Wherein a reflecting surface of the main reflector is coated with aluminum or chromium to form a reflecting layer. 3. The method of claim 2,
Wherein the light source is disposed between the first additional reflector and the second additional reflector. 3. The method of claim 2,
Wherein the first additional reflector and the second additional reflector are in the form of a parabola. The method according to claim 6,
Wherein the curvature radii of the respective reflective surfaces of the first additional reflector and the second additional reflector are different from each other. The method according to claim 1,
Wherein the reflective surface of the at least one additional reflector is formed with a facet that is coated with aluminum or chromium to form a reflective layer. The method according to claim 1,
The lens,
An inner lens through which surface light is emitted while indirect light reflected by the reflector module is transmitted;
And an outer lens disposed outside the inner lens. 10. The method of claim 9,
In the inner lens,
A first lens disposed so as to be exposed to the outside of the bezel such that indirect light reflected by the at least one additional reflector is transmitted and a surface emission is performed;
And a second lens disposed inside the bezel. 11. The method of claim 10,
Wherein the first lens is arranged in the vicinity of the same axial line in the horizontal direction with the at least one additional reflector,
Wherein the second lens is disposed in the vicinity of the same axial line in the horizontal direction with respect to the light source and the main reflector so that the light source is not exposed to the outside by the bezel. 11. The method of claim 10,
Wherein at least one of an incident surface and an emergent surface of the first lens is provided with,
Wherein a surface profile for diffusion of transmitted light is formed.

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