Detailed Description
The advantages and features of the present utility model and the manner in which the same are accomplished may be apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present utility model may be embodied in various forms different from each other and is not limited to the embodiments disclosed below, which are provided only to complete the disclosure of the present utility model and to fully inform a person having ordinary skill in the art of the scope of the present utility model, which is defined only by the scope of the claims. Like reference numerals refer to like elements throughout the specification.
Thus, in the several embodiments, well-known process steps, well-known structures, and well-known techniques have not been described in detail in order to not obscure the utility model.
The terminology used in the description presented herein is for the purpose of describing embodiments and is not intended to be limiting of the utility model. In this specification, unless specifically stated otherwise, singular forms also include plural forms in the sentence. The terms "comprises," "comprising," and/or "includes" when used in this specification are intended to specify the presence of stated features, steps, operations, and/or elements, but do not preclude the presence or addition of one or more other features, steps, operations, and/or elements. Additionally, "and/or" includes each of the mentioned items and combinations of one or more thereof.
Further, the embodiments described in the present specification will be described with reference to cross-sectional views and/or schematic diagrams as idealized exemplary figures of the present utility model. Therefore, the form of the example drawings may be deformed according to the manufacturing technique and/or the allowable error, etc. Therefore, the embodiments of the present utility model are not limited to the specific form shown in the drawings, and variations in form according to the manufacturing process are also included. In the drawings of the present utility model, each component may be enlarged or reduced in size in consideration of convenience of description. Like reference numerals refer to like elements throughout the specification.
Hereinafter, the present utility model will be described with reference to the drawings for describing a vehicle lamp, based on embodiments of the present utility model.
Fig. 1 is a perspective view showing a vehicle lamp according to an embodiment of the present utility model.
Referring to fig. 1, a vehicle lamp 1 according to an embodiment of the present utility model may include a plurality of lamp modules 1000 arranged in a left-right direction.
In the embodiment of the present utility model, the vehicle lamp 1 is described by taking as an example a headlight for irradiating light to a traveling direction of a vehicle to secure a front view of the vehicle when the vehicle travels at night or in a dark place such as a tunnel or the like. However, the vehicular lamp 1 according to the present utility model is not limited to this, and may be used not only as a headlight but also as various lamps such as a tail lamp, a brake lamp, a turn signal lamp, a daytime running light, a backup lamp, a fog lamp, and the like provided in a vehicle.
In the case where the vehicular lamp 1 of the present utility model is used as a headlight, a low beam pattern or a high beam pattern may be formed, the low beam pattern being irradiated with light downward with reference to a predetermined cut-off line to ensure a wide field of view for a short distance ahead of the vehicle, and the high beam pattern ensuring a long field of view for a long distance ahead of the vehicle, in order to prevent glare to a driver of a forward vehicle such as a preceding vehicle or an opposing vehicle.
In the case of forming the high beam pattern by the vehicle lamp 1 of the present utility model, the vehicle lamp 1 may be provided together with the lamp forming the low beam pattern, and the low beam pattern may be formed together when the high beam pattern is formed, so that a wide field of view and a long field of view in front of the vehicle can be ensured.
Further, in the case of forming the high beam pattern by the vehicle lamp 1 of the present utility model, the light is prevented from being irradiated to the Area corresponding to the position of the front vehicle or the amount of light irradiated to the Area corresponding to the position of the front vehicle is reduced, so that a Shadow belt (Shadow Area) can be formed to prevent glare from being generated to the driver of the front vehicle.
In the embodiment of the present utility model, the description will be given taking, as an example, a case where the vehicle lamp 1 includes the plurality of lamp modules 1000 arranged in the left-right direction, but this is merely an example for aiding in understanding the present utility model, and is not limited thereto, and the number and arrangement direction of the lamp modules 1000 included in the vehicle lamp 1 according to the present utility model may be variously changed, as to the light distribution characteristics of the beam pattern formed by the vehicle lamp 1 (that is, the size, position, shape, brightness, etc. of the area irradiated with light).
Hereinafter, in the embodiment of the present utility model, one of the plurality of lamp modules 1000 will be described as an example, and the remaining lamp modules may be similarly applied, although there is some difference in installation positions, with the X-axis direction being the left-right direction, representing the vehicle width direction, the Y-axis direction being the front-rear direction, representing the traveling direction, and the Z-axis being the up-down direction, representing the vehicle height direction.
Fig. 2 and 3 are perspective views illustrating a lamp module according to an embodiment of the present utility model, and fig. 4 is a side view illustrating the lamp module according to an embodiment of the present utility model.
Referring to fig. 2 to 4, the lamp module 1000 according to an embodiment of the present utility model may include a light source part 1100, an optical path adjusting part 1200, and a lens part 1300.
The light source unit 1100 may generate light having a light amount or color suitable for the purpose of the lamp module 1000 of the present utility model.
Fig. 5 is a front view showing a light source section according to an embodiment of the present utility model.
Referring to fig. 5, the light source part 1100 according to an embodiment of the present utility model may include a plurality of light sources 1121, 1122, 1123, 1124, 1125 provided to the substrate 1110, and the plurality of light sources 1121, 1122, 1123, 1124, 1125 may be arranged side by side in an up-down direction in columns R1, R2 formed by being arranged in a left-right direction.
In the embodiment of the present utility model, a case where a semiconductor light emitting element such as a light emitting Diode (LED: LIGHT EMITTING Diode) is used as the plurality of light sources 1121, 1122, 1123, 1124, 1125 will be described as an example, but not limited thereto, the plurality of light sources 1121, 1122, 1123, 1124, 1125 may use not only an LED but also various kinds of light sources such as a Laser Diode (LD) or a Bulb (Bulb), and may be additionally provided with an optical element such as a reflector, a mirror, a prism, a phosphor, or the like according to the kind of light source.
The plurality of light sources 1121, 1122, 1123, 1124, 1125 may be arranged to form a first row R1 on the upper side and a second row R2 on the lower side with reference to a reference line S horizontally passing through the central axis C of the light path adjusting section 1200, in order to be able to provide relatively more light sources on the limited-sized substrate 1110 while arranging pattern areas formed by the plurality of light sources 1121, 1122, 1123, 1124, 1125 in the left-right direction, which will be described later in detail.
The optical path adjusting unit 1200 may be located in front of the light source unit 1100, and may function to adjust the path of light so that the light generated from the light source unit 1100 travels along a set path.
The optical path adjusting part 1200 may include at least one optical lens 1210, 1220.
In the embodiment of the present utility model, the case where at least one optical lens 1210, 1220 includes the first optical lens 1210 located in front of the light source section 1100 and the second optical lens 1220 located in front of the first optical lens 1210 will be described as an example, in order to control the optical path more easily than the case where a single optical lens is used, in the case where the optical path required in the lamp module 1000 of the present utility model can also be controlled by means of a single optical lens, the optical path adjusting section 1200 may also include a single optical lens.
The first optical lens 1210 and the second optical lens 1220 may be made of different materials from each other, in which case the first optical lens 1210 located closer to the light source portion 1100 may be made of a material such as glass having excellent heat resistance, the second optical lens 1220 may be made of a resin material such as polymethyl methacrylate (PMMA: poly METHYL METHACRYLATE), but not limited thereto, and the first optical lens 1210 and the second optical lens 1220 may be made of the same material while securing sufficient heat resistance.
The optical path adjusting unit 1200 may be configured to adjust the path of light generated from each of the plurality of light sources 1121, 1122, 1123, 1124, 1125 according to the position of each of the plurality of light sources 1121, 1122, 1123, 1124, 1125.
That is, the plurality of light sources 1121, 1122, 1123, 1124, 1125 may be divided into light sources 1121, 1123, 1125 forming the first row R1 and light sources 1122, 1124 forming the second row R2, and the first row R1 may be located on the upper side with reference to the central axis C of the optical path adjusting section 1200, and the second row R2 may be located on the lower side with reference to the central axis C of the optical path adjusting section 1200.
In the embodiment of the present utility model, a case where the number of light sources forming the first column R1 is greater than the number of light sources forming the second column R2 will be described as an example, in order to locate pattern areas formed by light generated from the light sources 1122, 1124 forming the second column R2 between pattern areas formed by light generated from the light sources 1121, 1123, 1125 forming the first column R1, the opposite case may also be used.
At this time, as shown in fig. 6, the optical path adjusting unit 1200 may cause the light L1 generated from the light sources 1121, 1123, 1125 forming the first row R1 to be emitted obliquely downward in the forward direction with respect to the central axis C, and conversely, cause the light L2 generated from the light sources 1122, 1124 forming the second row R2 to be emitted obliquely upward with respect to the central axis C.
As described above, the optical path adjusting unit 1200 allows light incident from the light sources 1121, 1123, 1125 located on the upper side with respect to the central axis C to be emitted obliquely in the forward direction, and allows light incident from the light sources 1122, 1124 located on the lower side with respect to the central axis C to be emitted obliquely in the forward direction, so that the number of light sources that can be provided on the substrate 1110 can be increased, and the pattern areas formed by each of the plurality of light sources 1121, 1122, 1123, 1124, 1125 can be aligned substantially in the left-right direction.
The lens part 1300 may be located in front of the optical path adjusting part 1200, and may include a light transmitting member 1330, a plurality of incident lenses 1310 and a plurality of emitting lenses 1320 formed at an incident surface and an emitting surface of the light transmitting member 1330, respectively, and light incident from each of the plurality of incident lenses 1310 is emitted through a corresponding emitting lens of the plurality of emitting lenses 1320, thereby forming a pattern region suitable for the use of the lamp module 1000 of the present utility model.
At this time, the light incident on one of the plurality of incident lenses 1310 may be emitted through a corresponding one of the plurality of emission lenses 1320, or may be emitted through two or more corresponding ones of the plurality of emission lenses 1320.
As shown in fig. 7, the lens unit 1300 may be configured to adjust the curvature of at least one of the plurality of incidence lenses 1310 and the plurality of emission lenses 1320 in the vertical direction so that the light L1 obliquely incident downward in the front direction and the light L2 obliquely incident upward are emitted substantially parallel to the central axis C of the optical path adjusting unit 1200 with respect to the central axis C of the optical path adjusting unit 1200.
As the light incident downward or upward by the lens portion 1300 is emitted substantially side by side with the central axis C, the light sources may be disposed at upper and lower sides with respect to the central axis C of the optical path adjusting portion 1200, so that the number of light sources that may be disposed on the substrate 1110 may be increased, and the pattern areas formed by the plurality of light sources 1121, 1122, 1123, 1124, 1125, respectively, may be substantially aligned in the left-right direction.
In other words, in general, in the case where two or more light sources are arranged in the left-right direction, the light sources may be arranged on a line horizontally passing through the central axis C of the light path adjustment portion 1200 such that the pattern areas respectively formed by the two or more light sources are arranged in the left-right direction, or in this case, the number of light sources that can be provided on the limited-size substrate 1110 is relatively small, on the contrary, in the embodiment of the present utility model, since a part of the plurality of light sources 1121, 1122, 1123, 1124, 1125 is located on the upper side with respect to the central axis C of the light path adjustment portion 1200 and another part is located on the lower side with respect to the central axis C of the light path adjustment portion 1200, the number of light sources that can be provided on the same-size substrate 1110 increases, so that more pattern areas can be formed.
Fig. 8 is a schematic view showing a pattern area formed by a lamp module according to an embodiment of the present utility model.
Referring to fig. 8, in the case where the light sources 1121, 1123, 1125 located on the upper side and the light sources 1122, 1124 located on the lower side are alternately arranged in the left-right direction with respect to the central axis C of the optical path adjusting section 1200 among the plurality of light sources 1121, 1122, 1123, 1124, 1125, a plurality of pattern areas P1, P2, P3, P4, P5 formed by light generated from the plurality of light sources 1121, 1122, 1123, 1124, 1125, respectively, may be formed so as to be aligned in the left-right direction.
In the embodiment of the present utility model, the description has been given taking, as an example, a case where three light sources 1121, 1123, 1125 are arranged on the upper side with reference to the central axis C of the light path adjustment portion 1200 and two light sources 1122, 1124 are arranged on the lower side with reference to the central axis C of the light path adjustment portion 1200, thereby forming five pattern areas P1, P2, P3, P4, P5, but the number of pattern areas formed by the lamp module 1000 of the present utility model is not limited thereto, and may be changed according to the number of light sources respectively arranged on the upper side and the lower side with reference to the central axis C of the light path adjustment portion 1200.
At this time, when at least one of the plurality of light sources 1121, 1122, 1123, 1124, 1125 is turned off, no pattern region corresponding to the turned-off light source is formed in the plurality of pattern regions P1, P2, P3, P4, P5, so that a shadow belt can be formed according to the position of the vehicle ahead.
In the above-described embodiment, the case where the light sources 1121, 1123, 1125 forming the first column R1 and the light sources 1122, 1124 forming the second column R2 are alternately arranged in the left-right direction among the plurality of light sources 1121, 1122, 1123, 1124 is described as an example, but not limited thereto, as shown in fig. 9, at least one of the light sources 1121, 1123, 1125 forming the first column R1 and at least one of the light sources 1122, 1124 forming the second column R2 may also be arranged side by side in the up-down direction, and this is in order to achieve relatively high luminance by overlapping pattern areas formed by the light sources arranged side by side in the up-down direction with each other.
For example, among the pattern areas P1, P2, P3, P4, and P5 formed by the plurality of light sources 1121, 1122, 1123, 1124, and 1125, the pattern areas P2 and P3 at the center of the H-V line, which plays the most important role in ensuring the view in front of the vehicle, are overlapped with each other, and the light sources 1122 and 1123 forming the pattern areas P2 and P3 at the center of the H-V line are arranged in the vertical direction, so that the view in front of the vehicle can be improved.
Fig. 10 is a front view showing a light source section according to another embodiment of the present utility model.
Referring to fig. 10, the light source part 1100 according to another embodiment of the present utility model may include not only a plurality of light sources 1121, 1122, 1123, 1124, 1125 forming a first column R1 and a second column R2, but also an additional light source 1130 positioned at a lower side of the second column R2.
Even in the case where all of the plurality of light sources 1121, 1122, 1123, 1124, 1125 are turned off, the additional light source 1130 can form a lighted image by the lamp module 1000 of the present utility model in order to form a low beam pattern, so that it can function to prevent formation of an incomplete lighted image.
In other words, in the case of forming the high beam pattern by means of the lamp module 1000 of the present utility model, it may be provided together with the lamp forming the low beam pattern, and when forming the low beam pattern, since the plurality of light sources 1121, 1122, 1123, 1124, 1125 are extinguished, an overall incomplete lighted image may be formed, but in another embodiment of the present utility model, even when forming the low beam pattern by means of the additional light source 1130, a lighted image may be formed by means of the lamp module 1000 of the present utility model, and thus an overall complete lighted image may be formed.
At this time, the additional light sources 1130 are arranged at the lower side of the second row R2 so that the light generated from the additional light sources 1130 is emitted obliquely to the upper side through the lens part 1300.
In other words, since the light generated from the light sources 1122 and 1124 belonging to the second row R2 is emitted through the lens portion 1300 substantially in parallel with the central axis C of the optical path adjusting portion 1200, when the light generated from the additional light source 1130 located below the second row R2 is emitted through the lens portion 1300, the light can be emitted obliquely upward with reference to the central axis C of the optical path adjusting portion 1200.
When light generated from the additional light source 1130 is emitted through the lens portion 1300, it is emitted obliquely upward with reference to the central axis C of the optical path adjusting portion 1200, because the light generated from the additional light source 1130 is emitted obliquely upward from the lens portion 1300 when the lamp module 1000 of the present utility model is viewed from the outside of the vehicle, since the external viewing angle is located on the upper side of the lamp module 1000 of the present utility model, and thus visibility can be improved.
As described above, in the lamp module 1000 of the present utility model, the rows R1, R2 formed by arranging the plurality of light sources 1121, 1122, 1123, 1124, 1125 in the left-right direction are arranged side by side in the up-down direction, and the plurality of light sources 1121, 1122, 1123, 1124, 1125 are positioned on the upper side and the lower side with respect to the central axis C of the optical path adjusting section 1200, so that relatively more pattern areas P1 to P5 can be formed, and therefore, the number of lamp modules 1000 required for forming the beam pattern can be relatively reduced.
For example, in the case where five pattern areas are required for the beam pattern formed by the vehicular lamp 1 according to the present utility model, two or more lamp modules 1000 are required when the light sources are arranged along a line passing horizontally through the central axis C of the optical path adjusting portion 1200, but in the embodiment of the present utility model, since the light sources are arranged on the upper and lower sides with reference to the central axis C of the optical path adjusting portion 1200, respectively, a required number of pattern areas can be formed even if one lamp module 1000 is used, so that the number of components and the overall size can be reduced.
It is understood by those skilled in the art to which the present utility model pertains that it is possible to embody the present utility model in other specific forms without changing the technical idea or essential features. Thus, the above-described embodiments are exemplary in all respects, and it is to be understood that they are not limiting embodiments. The scope of the present utility model is defined not by the foregoing detailed description but by the appended claims, and all changes or modifications that can be derived from the meaning, scope and equivalents thereof are to be construed as being included in the scope of the present utility model.