KR20150009176A - Automotive lamp - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a lamp for a vehicle, and more particularly, to a lamp for a vehicle that expresses a specific image using light leakage generated by a light source.
The lamp for a vehicle according to an embodiment of the present invention includes a light source, a reflector that reflects light by the light source to generate reflected light, and an optical system that forms a predetermined image of a predetermined shape by using the incident light or the reflected light of the light source Member.

Description

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a lamp for a vehicle, and more particularly to a lamp for a vehicle that expresses a specific image using light leakage generated by a light source.

2. Description of the Related Art Generally, a vehicle includes a lamp module having a lighting function for easily identifying an object located in the vicinity of the vehicle at nighttime, and a signal function for notifying other vehicle or road users of the traveling state of the vehicle.

For example, headlights and fog lights are aimed at lighting functions, and turn signal lights, taillights, brake lights, side markers and the like are intended for signal functions.

In recent years, the lamp module has exceeded merely the lighting function and the signal function, so that a specific type of light is emitted to the outside, thereby improving the visibility and improving the perception of the product of a specific maker.

On the other hand, it is not easy to have differentiation from other products through it because it has been a long-lasting technology to transform the shape of light emitted to the outside.

Therefore, the emergence of an invention for a vehicle lamp that can give a clearer differentiation from other products is required.

Korean Patent Registration No. 10-0835881 (2008.06.02)

An object of the present invention is to represent a specific image using light leakage generated by a light source.

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

In order to achieve the above object, a vehicle lamp according to an embodiment of the present invention includes a light source, a reflector for reflecting light by the light source and generating a reflected light, and a reflector for reflecting the light by the light source, Type optical member.

The details of other embodiments are included in the detailed description and drawings.

According to the vehicle lamp of the present invention as described above, one or more of the following effects can be obtained.

First, there is an advantage that a specific image or shape is expressed when the vehicle lamp is turned on or off.

Second, since the light leakage generated by the light source is utilized, it is not necessary to provide a separate means for preventing leakage of the leakage light.

1 is an exploded perspective view of a vehicle lamp according to an embodiment of the present invention.
2 is a perspective view of a vehicle lamp according to an embodiment of the present invention.
3 is a front view of a vehicle lamp according to an embodiment of the present invention.
4 and 5 are views showing a vehicle lamp according to an embodiment of the present invention mounted on a vehicle.
6 is a plan view of a vehicle lamp according to an embodiment of the present invention.
7 and 8 are side views of a vehicle lamp according to an embodiment of the present invention.
9 is a view showing an image formed according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as 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 convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

FIG. 1 is an exploded perspective view of a vehicle lamp according to an embodiment of the present invention. The vehicle lamp 10 of the present invention includes a light source module 100, a reflector 200, a support portion 300, and an optical member 400 .

The light source module 100 generates light so that light is irradiated along the optical axis. The light source module 100 may include a light source 110. The light source module 100 includes a light source 110 and a light source 110 attached to the light source 110 have.

However, the light source module 100 of the present invention does not necessarily have to be composed of the light source 110 and the light source panel. The light source module 100 may include only the light source 110, The means may also be in a form other than the form of the panel.

Also, in the present invention, the light source 110 preferably forms a directional beam pattern such as a light emitting diode (LED). If a light source that forms an omni-directional beam pattern such as a bulb is used, A reflective plate (not shown) or a lens (not shown) that converts light into a pattern may be provided in the light source module 100.

The reflector 200 reflects light by the light source 110 to generate reflected light and guides the generated reflected light to a desired position. The reflector 200 may be disposed adjacent to the light source module 100 and may have a curvature so as to secure a reflection path of light generated by the light source 110.

In the present invention, the reflector 200 may be irradiated in the same direction regardless of the point where the light from the light source 110 is reflected. To this end, the reflecting surface of the reflector 200 may have a parabolic surface shape .

That is, when the light source 110 is positioned at the focus of the parabolic curved surface, when the light from the light source 110 is reflected by the reflecting surface of the reflector 200, all the reflected light is irradiated in parallel.

In addition, the reflector 200 of the present invention can be composed of a plurality of reflector pieces having a planar shape as shown in FIG. In the case of the reflection plate piece, the light emitted from one light source 110 changes depending on the position of the reflection plate piece. That is, the reflection direction of the reflection light reflected at a specific point among the reflection areas formed by one reflection plate piece differs from the reflection direction of the reflection light reflected at another point.

When the light from the light source 110 is irradiated and reflected at the center of each reflector plate, the reflected light can be irradiated to all the reflector plates in the same direction. That is, when the reflector 200 has the shape of a parabolic curved surface and the light source 110 is positioned at the focal point of the parabolic curved surface as described above, all of the reflected light is irradiated in parallel. So that all of the reflected light is irradiated in the same direction.

However, the arrangement of the reflector pieces included in the reflector 200 of the present invention is not limited thereto, and the whole or a part of the reflector pieces may not be in contact with the parabolic curved surface. As described above, since the center of some or all of the reflection plate pieces does not contact the parabolic curved surface, the reflection direction of the reflected light becomes more diverse.

The reflected light (reflected light) reflected by one parabolic surface or a plurality of reflector pieces is irradiated in the same direction or a similar direction. When the vehicle lamp 10 is a headlamp, the reflected light can form a low beam pattern.

The optical member 400 serves to form a predetermined image of a predetermined shape by using the direct light or the reflected light of the incident light source 110. It is preferable that the optical member 400 is a transparent or semitransparent light guide. As the light is incident through the optical member 400 that is a light guide, an observer who views the optical member 400 emits light in a predetermined shape formed on the optical member 400 .

The above-described low beam pattern is formed by reflected light. The direct light and reflected light of the light source 110 incident on the optical member 400 include light not used for forming the low beam pattern, that is, light leakage.

That is, even if the light of the light source 110 has a directional pattern, it can be irradiated in an unintended direction due to various factors. The direct light generated by the light source 110 of the present invention or the light emitted by the reflector 200 All of the reflected light reflected is not used for forming the low beam pattern.

The optical member 400 of the present invention forms an image by using a light source that is not used for formation of a low beam pattern and thus does not require a separate light source 110 for image formation, It is not necessary to provide a separate means for preventing it from being released.

In addition, as described above, since the center of a part or all of the reflector pieces constituting the reflector 200 is not in contact with the parabolic curved surface, the irradiation direction of the reflected light becomes more diverse. In this case, And the image forming effect by the optical member 400 is increased.

The optical member 400 may form a predetermined image of a predetermined shape by using the optical transformation means 410 and 420 provided on the surface or the inside. The optical deflection means 410, 420 may comprise at least one of a light refraction pattern, a scratch and a paint, wherein FIG. 1 shows a light refraction pattern or a scratch in a linear form, Member 400 is shown. The paint is preferably white, but it is not limited thereto and various colors may be used. When a colored paint is used, the color of the light source 110 and the color of the paint can be combined and the color of the image can be determined.

When the light from the light source 110 is incident on the optical member 400, the incident light is reflected while being reflected along the surface in the optical member 400 and is refracted or scattered when the light reaches the optical deforming means 410 or 420 A certain pattern is formed with high or low luminance as compared with other portions.

The image formed by the optical member 400 includes a surface-emitting image 520. The optical member 400 may have a plate shape having a predetermined thickness, and the surface-emitting image 520 may be formed by the paint applied along the vertical section of the plate as shown in FIG.

Here, the surface emission image 520 may be formed by using direct light or reflected light of the light source 110 incident on the plate surface or the plate side of the optical member 400.

Meanwhile, the optical member 400 of the present invention is not limited to a plate, but may be embodied in various forms. 1 also shows that the optical deforming means 420 forming the surface emitting image 520 is a U-shaped and the optical deforming means 410 provided inside the optical member 400 is formed in a straight line However, it is to be understood that this is merely an example and that the present invention may be embodied in various forms.

That is, the image formed by the optical member 400 may include an image pattern, and the plate-shaped optical member 400 having a certain thickness may be formed by an optic formed on the surface of the plate. Here, the optic may be formed by at least one of a photorefractive pattern and a scratch. FIG. 1 shows that a linear pattern is formed by a linear scratch.

As a result, in the present invention, the image formed on the optical member 400 by using the light of the light source 110 is formed by using the refraction of light by the light refraction pattern or by using scattering of light by scratch or paint , A linear pattern, a curved pattern, a polygonal pattern, or a facet pattern.

The supporting part 300 serves to support the reflector 200. In the present invention, the reflector 200 has a thin plate shape and its shape can be deformed by an external impact. The support part 300 fixes both sides of the reflector 200 to maintain the shape of the reflector 200 unchanged To be able to do so.

The supporting part 300 is coupled to one side of the optical member 400 at one side thereof to relay the junction between the reflector 200 and the optical member 400.

Therefore, the support portion 300 may be omitted when the material of the reflector 200 is a rigid material or when the reflector 200 and the optical member 400 are directly bonded.

2 is a perspective view of a vehicle lamp according to an embodiment of the present invention in which one side of the optical member 400 is in contact with the reflector 200 and the supporting member 300 is in contact with the optical member 400 and the reflector 200 .

The optical member 400 may be provided with optical transforming means 410 and 420 on the surface or inside of the optical member 400. The optical member 400 may include a light source 110 and a reflector 200, When the light is incident on the optical member 400, a certain image is formed by the optical transforming means 410 and 420.

2 shows that the optical member 400 is provided with the optical deforming means 410 in a linear form so that a plurality of linear images can be formed along the inside of the optical member 400 Quot; U "-shaped image can be formed by the optical deforming means 420 formed in a" U "

3 is a front view of a vehicle lamp according to an embodiment of the present invention. The light reflected by the reflector 200 forms the above-described low beam pattern, and the light incident on the optical member 400 forms a certain type of image. FIG. 3 shows that a "U" Respectively.

Figs. 4 and 5 show that the vehicle lamp according to the embodiment of the present invention is mounted on a vehicle, showing that the vehicle lamp 10 performs the role of a headlight.

Fig. 4 shows a state in which the vehicle lamp 10 is turned off, and Fig. 5 shows a state in which the vehicle lamp 10 is turned on. In a state in which the vehicle lamp 10 is turned off, However, in the turned-on state, the surface emission image 520 of "U"

Although not shown in FIG. 5, a low beam pattern by the vehicle lamp 10 is formed together with the surface light emission image 520, and by such a combination of the beam pattern and the surface light emission image 520, Provides a distinctive appearance.

6 is a plan view of a lamp for a vehicle according to an embodiment of the present invention, in which light from a light source 110 is irradiated for a beam pattern or incident on an optical member 400 for image formation.

The optical member 400 is a plate having a predetermined thickness and is disposed such that the side surface of the optical member 400 is closely attached along the edge of the reflector 200. When the direct light or reflected light of the light source 110 is incident on the plate Is incident on the surface or plate side to form an image.

That is, a part 610 of the light 610, 630, 640 reflected by the reflector 200 is irradiated forward to form a beam pattern, and another part 630, And is used to form an image.

Here, the light incident on the optical member 400 may include not only the reflected light 630, 640 but also the direct light 620. That is, the light generated from the light source 110 can be directly incident on the optical member 400 without being reflected by the reflector 200. [

The optical member 400 according to the present invention may be a plate having a U-shaped bent shape. The optical member 400 may be a flat plate-like plate formed by direct light 620 or reflected light 630 and 640 of a light source 110, Various image patterns, including image 520, may be formed.

For this, the optical member 400 may be in contact with the supporting portion 300 with a stepped portion, and the side surface of the optical member 400 in contact with the supporting portion 300 may be included in the entire area of the reflector 200.

Accordingly, the light from the light source 110 can be incident on the side surface of the optical member 400, so that the image formation by the optical transformation means 410 and 420 can be made more distinct.

FIGS. 7 and 8 are side views of a lamp for a vehicle according to an embodiment of the present invention, showing reflection efficiency according to the irradiation direction of the light source 110. FIG.

As described above, in the present invention, the light source 110 may form a directional beam pattern such as a light emitting diode, and the light emitted from the light source 110 has a constant irradiation angle range 700.

That is, as shown in FIG. 7, light is irradiated with an angle 700 within a certain range.

7, when the light of the light source 110 is irradiated to the reflector 200 having a certain parabolic curved surface, the light 710 of the shaded portion is irradiated to the reflector 200 It is unnecessarily wasted.

The light 710 not irradiated by the reflector 200 is transmitted to the optical member 400 to be used for image formation, but the brightness of the low beam is reduced.

For this, the directivity angle 800 of the light source 110 with respect to the reflector 200 according to the embodiment of the present invention can be determined in consideration of the irradiation angle range of the light source 110.

8 is a view showing that the directivity angle 800 of the light source 110 is determined in consideration of the irradiation angle range 700 of the light source 110 and the arrangement of the reflector 200. In this way, The brightness of the low beam is increased by making all of the light included in the angle range 700 be directed to the reflector 200. [

9 is a diagram illustrating the formation of an image according to an embodiment of the present invention in which light from a light source 110 reflected by a reflector 200 forms a beam pattern or is incident on an optical member 400 to form an image Fig.

A portion 610 of the light 610, 631, 632, or 640 reflected by the reflector 200 is irradiated forward to form a beam pattern, and the remaining portions 631, 632, The light 631, 632, and 640 incident on the optical member 400 are reflected while being moved along the surface of the optical member 400, ), It is refracted or scattered to have a higher or lower luminance than the other portions.

9 shows that the reflected light 631, 632, 640 is incident on the surface or the side surface of the optical member 400. The incident light reaches the optical deforming means 410 inside the optical member 400, Forming an image or reaching a vertical cross-section to form a surface-emitting image 520.

In this way, the light 631, 632, and 640 incident on the optical member 400 are not completely transmitted through the optical member 400 but are reflected by the inner surface of the optical member 400 to reach the optical deforming means 410 and 420 The surface of the optical member 400 may be coated so that the incidence of light is free but the light is not emitted freely.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

100: light source module 110: light source
200: reflector 300:
400: optical member 410, 420:

Claims (13)

Light source;
A reflector for reflecting light by the light source to generate reflected light; And
And an optical member for forming an image of a predetermined type predetermined by using the direct light of the light source or the reflected light of the incident light source. The method according to claim 1,
Wherein the reflected light forms a low beam pattern. 3. The method of claim 2,
Wherein the direct light and the reflected light of the light source incident on the optical member include light not used for forming the low beam pattern. The method according to claim 1,
And the angle of incidence of the light source is taken into consideration to determine the directivity angle of the light source with respect to the reflector. The method according to claim 1,
Wherein the image comprises surface emission. 6. The method of claim 5,
Wherein the optical member is a plate having a predetermined thickness and the surface light emission is formed by a paint applied along a vertical section of the plate. The method according to claim 6,
Wherein the shape of the surface emitting light includes a "U" shape. The method according to claim 6,
Wherein the surface light emission is formed by the direct light or the reflected light of the light source incident on a plate surface or a plate side of the optical member. The method according to claim 1,
Wherein the optical member is a plate having a predetermined thickness and the image is formed by an optic formed on the surface of the plate. 10. The method of claim 9,
Wherein the optic is formed by at least one of a light refraction pattern and a scratch. 10. The method of claim 9,
Wherein the image comprises a straight pattern, a curved pattern, or a polygonal pattern. 10. The method of claim 9,
Wherein the image is formed by the direct light or the reflected light of the light source incident on a plate surface or a plate side of the optical member. The method according to claim 1,
Wherein the optical member is of a plate shape having a predetermined thickness, and the side surface of the optical member is closely disposed along the edge of the reflector.

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