Lighting device and vehicle lamp including same

Abstract

To provide a lighting device and a vehicle lamp comprising the same for preventing degradation in durability of a light source module.SOLUTION: A vehicle lamp may comprise: a base member 100 including a straight portion 101 and a curved portion 103; a substrate 210 including a first substrate 211 disposed on the straight portion of the base member and a second substrate 213 disposed on the curved portion; a plurality of light sources 220 disposed on each of the first and second substrates; a resin layer 230 including a first resin portion 231 disposed on the first substrate and a second resin portion 233 surrounding the second substrate; and a phosphor layer 240 disposed on the resin layer; where an outer side surface of the second resin portion may include a curved surface.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] An embodiment of the invention relates to a surface emitting lighting device for improving light efficiency. [Background technology]

[0002] Generally, light-emitting elements, such as light-emitting diodes (LEDs), are used in existing light sources such as fluorescent lamps and incandescent lamps. Compared to conventional lasers, it has advantages such as low power consumption, semi-permanent lifespan, fast response speed, safety, and environmental friendliness. Such light emitting diodes are used in a variety of display devices and various lighting applications such as indoor and outdoor lighting. Recently, lamps that use light-emitting elements have been proposed as vehicle light sources. Compared to incandescent lamps, light-emitting elements have the advantage of consuming less power. The light-emitting element is small in size, which allows for greater freedom in lamp design, and It is also economical due to its permanent lifespan. This type of vehicle lighting device uses a surface light source. This creates a three-dimensional effect and a unique aesthetic look for vehicle lamps. The rear lamp for a vehicle is designed to mount the light source module according to the curved lamp bracket structure. The light source module is formed to have a curvature that corresponds to the bracket. This requires using the thinnest possible PCB board, which reduces the module's durability. In addition, the process of giving the PCB board a curvature causes strain on the PCB board and the light source. In addition, the light source module has a curvature. By forming it like this, the light distribution behind the vehicle is reduced, and the light source is made closer to comply with light distribution regulations. This will result in the problem of increased costs. Summary of the Invention [Problem to be solved by the invention]

[0003] The embodiment of the invention provides a lighting device and a light source module for preventing deterioration of durability. and a vehicle lamp including the same.

[0004] An embodiment of the invention is a lighting device and method for meeting rear and side rear light distribution regulations for a vehicle. and a vehicle lamp including the same. [Means for solving the problem]

[0005] The lighting device according to the embodiment of the present invention includes a straight portion and a bent portion formed by bending one end of the straight portion. a base member including a curved surface portion having a given ratio; and a first a substrate, which is disposed parallel to the first substrate and spaced apart from the curved surface portion of the base member; a substrate including a second substrate on which a plurality of light sources are disposed; a first resin portion disposed on the curved surface of the base member so as to surround the second substrate; a resin layer including a second resin portion disposed thereon, and a phosphor layer disposed on the resin layer. the second resin portion has one side surface in contact with the first resin portion and a second resin portion disposed opposite to the one side surface. The side surface of the second resin portion may include a curved surface.

[0006] The lighting device according to the embodiment of the present invention includes a first substrate and a second substrate disposed outside the first substrate. a substrate including a plate; and a plurality of light sources disposed on each of the first substrate and the second substrate; a first resin portion disposed on the first substrate and a second resin portion disposed on the upper, outer surface and lower surface of the second substrate; a resin layer including a second resin portion disposed on the resin layer; and a phosphor layer disposed on the resin layer. The upper surface of the first resin portion is parallel to the first substrate, and the surface of the second resin portion is parallel to the first substrate. The second substrate has a curved surface extending outward from the outer surface of the second substrate, and the second substrate has a curved surface extending outward from the outer surface of the second substrate. The surface of the resin portion may include a curved surface.

[0007] The plurality of light sources include a first light source that is closest to a side surface of the second resin portion, The resin portion has a first point that contacts the phosphor layer in a horizontal direction of the substrate at the center of the first light source. a third point at which the first light source is in contact with the phosphor layer and a line perpendicular to the substrate at the center of the first light source; a second resin portion having a second point between the first point and the second point and contacting the phosphor layer; a first point contacting the substrate, a second point on the curved surface, and a center of the first light source perpendicular to the substrate; a third point that is tangent to the line, and a second distance from the center of the first light source to the second point is , which is greater than the distance from the center of the first light source to the first point, It may be less than a third distance to the third point.

[0008] The second substrate is made of a transparent material and is electrically connected to the first substrate. The second substrate includes a lattice structure having a number of holes and is electrically connected to the first substrate. The second substrate has a first substrate portion perpendicular to the side surface of the first substrate and a side surface of the first substrate. The first substrate portion may have a width equal to or larger than the width of the second substrate portion. The width of the first substrate portion may be smaller than the width of the hole. The plurality of light sources may include a second light source disposed below the second substrate.

[0009] The vehicle lamp according to an embodiment of the present invention is coupled to a lamp bracket of a vehicle, and includes a linear portion and a base member including a curved surface portion bent from one end of the linear portion and having a curvature; a lighting module disposed on a base member; and a red light disposed on the lighting module. and a color lens, and the lighting module is a first lens disposed on the linear portion of the base member. a first substrate, which is arranged parallel to the first substrate and spaced apart from the curved surface of the base member; a second substrate on which the first substrate and the second substrate are disposed; and a plurality of light sources disposed on the first substrate and the second substrate. a first resin portion disposed on the first substrate and the light source; a second resin portion disposed on the curved surface portion of the base member so as to surround the light source; a resin portion and a phosphor layer disposed on a second resin portion, One side surface contacting the resin portion and another side surface disposed opposite to the one side surface, The side surface of the second resin part may include a curved surface. [Effects of the Invention]

[0010] An embodiment of the invention is that the horizontal placement of the substrate reduces the durability of the lighting module. By arranging the board horizontally, it is possible to comply with the rear light distribution regulations. The second substrate can be made of a transparent material or a lattice structure, allowing for The efficiency of the light emitted in the direction of the substrate can be increased. By placing the lens in this position, the efficiency of light emitted to the sides and rear can be further increased. By using a phosphor layer of this thickness, costs can be reduced. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 1 is a schematic cross-sectional view showing a vehicle lamp according to a first embodiment of the invention. [Figure 2] FIG. 2 is a schematic cross-sectional view showing the structure of the lighting module according to the first embodiment. [Figure 3] FIG. 3 is a plan view showing the substrate of FIG. [Figure 4] FIG. 4 is a plan view showing a modification of the substrate of FIG. [Figure 5] FIG. 5 is a diagram for explaining the traveling direction of light from the vehicle lamp according to the first embodiment. [Figure 6] FIG. 6 is a schematic cross-sectional view showing a vehicle lamp according to a second embodiment of the present invention. [Figure 7] FIG. 7 is a diagram for explaining the traveling direction of light from a vehicle lamp according to the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The technical concept of the invention is not limited to the embodiments described, but may be embodied in various forms. Within the scope of the technical concept of the present invention, the components of the embodiments may be selectively connected. In addition, the terms (technical and scientific terms) are not intended to be used in the art to which the present invention pertains unless expressly specified otherwise. The meaning of the term is interpreted as being generally understood by a person of ordinary skill in the art and is defined in a dictionary. The meaning of commonly used terms should be interpreted in light of the context of the technology involved. In addition, the terms used in the embodiments of the present invention are intended to explain the embodiments. The singular forms "a," "an," and "the" are used herein to denote the same or similar parts, and are not intended to limit the scope of the present invention. Unless otherwise specified, plural forms can be included, and "at least one of A, B, and C ( When "one or more" is stated, it means all possible combinations of A, B, and C. In addition, in the description of the components of the embodiment of the present invention, Terms such as first, second, A, B, (a), (b) etc. may be used. The term is used to distinguish the component from other components. There is no limitation on the nature or order of the components. When described as being "coupled" or "connected," an element refers to another element directly connected to it. When the components are directly connected or connected, or when other components are "connected" or "connected" between the components This includes all cases where the components are "coupled" or "connected" to each other. When described as being or being positioned on, "above or below" means that the two components are in direct contact. Not only when one or more other components are formed or arranged between the two components, but also when one or more other components are formed or arranged between the two components. Also, when it is expressed as "above or below," it means that one component is used as the reference. Therefore, it can mean not only the upward direction but also the downward direction.

[0013] FIG. 1 is a schematic cross-sectional view showing a vehicle lamp according to a first embodiment of the present invention, and FIG. 3 is a schematic cross-sectional view showing the structure of a light emitting module according to one embodiment, in which the substrate of FIG. 4 is a plan view showing a modification of the substrate of FIG. 1; FIG. 5 is a plan view showing the first embodiment of the substrate of FIG. 4 is a diagram illustrating a traveling direction of light from a vehicle lamp according to an embodiment.

[0014] Referring to FIGS. 1 and 2, a vehicle lamp according to a first embodiment of the invention includes a base member 1. 00, a lighting module 200 disposed on the base member 100, and The illumination module may include a front lens 300 disposed on the illumination module 200. The module 200 may be a surface lighting or surface emitting device or module.

[0015] The base member 100 is configured to support the lighting module 20 while maintaining the outer shape of the rear lamp of the vehicle. The base member 100 supports the lamp bracket 100 attached to the rear of the vehicle. For this purpose, the base member 100 is provided with a lamp for the vehicle. A coupling structure may be formed to support the module. These may include, but are not limited to, connecting structures such as screws, hooks, etc. The base member 100 can include a straight portion 101 and a curved portion 103. Although the curved surface portion 103 and the curved surface portion 104 are integrally formed, they are described as two components for the sake of convenience. The linear portion 101 includes an area that overlaps at least one light source in the vertical direction. The curved surface portion 103 includes an area that overlaps with at least one light source in the vertical direction. The straight portion 101 may be formed toward the rear of the vehicle. The base member 100 may be formed toward the rear and the side rear of the vehicle. The straight portion 101 may be formed so as to surround the rear and rear sides of the vehicle. The side may further include a side wall portion for supporting the front lens 300, and the straight portion 10 The other side of the straight portion 101 is connected to the curved portion 103. That is, the curved portion 103 is connected to the straight portion 101. It may be a region connected or extended from

[0016] The lighting module 200 is disposed on the base member 100. The lighting module 200 can emit light toward the rear and sides of the vehicle. The light distribution method is performed in the rear and side rear of the vehicle. The lighting module 200 according to the embodiment of the invention can emit light that satisfies the standard. A substrate 210, a plurality of light sources 220 disposed on the substrate 210, and a plurality of light sources 220 A resin layer 230 is disposed on the substrate 20, and a phosphor layer 24 is disposed on the resin layer 230. The substrate 210 may include an insulating material or a conductive material. The substrate 210 may be made of a rigid or flexible material. The substrate 210 may be made up of a plurality of substrates. The first substrate 211 is disposed on the linear portion 101 and the curved portion 103 of the base member 100 is disposed on the linear portion 101. The second substrate 213 may include a light source 220 and a second substrate 213 disposed thereon. When the emitted light is incident, it can be emitted backward through the second substrate 213.

[0017] As shown in FIG. 3, the first substrate 211 may be made of an opaque material. The first substrate 211 may have a polygonal plate shape, but is not limited thereto. The second substrate 213 may be disposed on one side or outside of the first substrate 211. The second substrate 213 is electrically connected to the first substrate 211. The second substrate 213 is a transparent The light generated from the light source 220 is incident on the first substrate 211 and the second substrate 212. The light can be emitted toward the top of the substrate 213. At the same time, part of the light can be emitted toward the second substrate 213. The light can be emitted toward the bottom of the second substrate 213 through the first substrate 213. The widths of the plate 211 and the second substrate 213 may be the same or different. Generally, the rear width of the vehicle where the lamp is installed is larger than the rear width of the side. The width of the first substrate 211 is greater than the width of the second substrate 213. The first substrate 211 is made of an opaque material, and the second substrate 213 is made of a transparent material. This has the effect of reducing costs compared to forming the entire panel out of transparent materials. This is because substrates made of normally transparent materials are more expensive than substrates made of opaque materials.

[0018] As shown in FIG. 4, the first substrate 211 may be made of an opaque material. The substrate 211 may have a polygonal plate shape, but is not limited thereto. The second substrate 213 may be disposed on one side or outside of the first substrate 211. The plate 213 is electrically connected to the first substrate 211. The second substrate 212 is made of an opaque material. The second substrate 213 may be formed in a lattice structure including a number of holes H. The second substrate 213 may include a first substrate portion 213a and a second substrate portion 213b. The first substrate portion 213a extends outward in a direction perpendicular to the side surface of the first substrate 211. The first substrate portion 213a extends horizontally outward from the first substrate 211. The substrate unit 213a may include a plurality of substrate units. The second substrate portion 21 is arranged parallel to the first substrate portion 21, but is not limited to this. 3b may be disposed in a direction parallel to the side surface of the first substrate 213a. 3b may be formed in a structure that connects a plurality of first substrate portions 213a. A plurality of holes H are formed in the second substrate 213. The holes H are formed in the first substrate portion 21 3a and second substrate portion 213b. 13b are arranged around the hole H. The first and second substrate portions 213a, 21 The upper surface of the hole H 3b may be disposed on the same plane as the upper surface of the first substrate 211. may include a polygonal shape, which depends on the structure of the second substrate 213, i.e., the first and second The width w of the first substrate portion 213a can be varied depending on the shape of the second substrate portion 213a and 213b. The width w1 of the first substrate portion 213a may be smaller than the width w2 of the hole H. If is significantly large, most of the light emitted to the lower part of the second substrate 213 is blocked. In order to increase the amount of light emitted to the lower part of the second substrate 213, the width w1 of the first substrate part 213a is set to It is effective to make the width of the second substrate portion 213b as small as possible. The width of the second substrate 213a can correspond to the width of the second substrate 213. The structure of the second substrate 213 can be formed in various structures. However, in order to uniformly arrange the light sources 220 and distribute the light uniformly, a grid structure is used. It is very effective to form the structure as follows.

[0019] 1 and 2, the light source 220 is disposed on the top of the substrate 210. The light sources 220 are arranged in a row in the long axis direction of the substrate 210, and N light sources 220 are arranged in the short axis direction of the substrate 210. M light sources 220 may be arranged in the axial (row) direction. The N light sources 220 may be formed to have the same or different separation distances from each other. Each of N and M may be two or more light sources. The M light sources 220 arranged in the minor axis direction of the optical fiber 10 have the same or different separation distances from each other. The distance between the light sources 220 may be set to a value that effectively realizes a surface light source. The light source 220 can include a light emitting element. The source 220 can emit blue, green, red, white, infrared, or ultraviolet light. The light source 220 according to the embodiment of the invention emits light in the range of 420 nm to 470 nm, which has the best light efficiency. The light source 220 can emit blue light. The light source 220 may be a packaged device. The light source 220 may be provided, for example, from a II-VI or III-V compound semiconductor. For example, the light source 220 may be aluminum (Al), gallium (Ga), indium (In), or the like. (In), phosphorus (P), arsenic (As), and nitrogen (N) are contained in the The light source 220 may include a first conductive type semiconductor layer, an active layer, and a second conductive type semiconductor layer. The first and second conductive type semiconductor layers may be made of a group 3-5 or group 2-6 element. The first and second conductive types may be implemented using at least one of compound semiconductors. The semiconductor layer is, for example, In x Al y Ga 1‐x‐y N(0≦x≦1, 0≦y≦1, 0≦x+y≦1) The first and second conductive type semiconductor layers may be made of a semiconductor material. For example, the first and second conductive type semiconductor layers may be made of GaN. , AlN, AlGaN, InGaN, InN, InAlGaN, AlInN, AlGaAs, GaP, GaAs, GaAsP, AlGaInP etc. The first conductive type semiconductor layer may include at least one selected from the group consisting of: It may be an n-type semiconductor layer doped with an n-type dopant such as Si, Ge, Sn, Se, or Te. The second conductive type semiconductor layer is doped with a p-type dopant such as Mg, Zn, Ca, Sr, or Ba. Alternatively, the active layer may be a p-type semiconductor layer. The active layer may be realized by a compound semiconductor. The active layer is made of at least one of, for example, group III-V or group II-VI compound semiconductors. When the active layer is embodied in a multi-well structure, the active layer may be formed by alternating and a plurality of well layers and a plurality of barrier layers arranged in a matrix. x Al y Ga 1‐x‐y N(0≦x≦1 , 0≦y≦1, 0≦x+y≦1). For example, The active layer is InGaN / GaN, GaN / AlGaN, AlGaN / AlGaN, InGaN / AlGaN, InGaN / InGaN, AlGa Selected from the group including As / GaAs, InGaAs / GaAs, InGaP / GaP, AlInGaP / InGaP, InP / GaAs The present invention can include at least one of the above.

[0020] The resin layer 230 serves to guide the light emitted from the light source 220. , transparent resin material, such as UV (Ultra violet) resin, silicone or epoxy The resin layer 230 may be made of a resin material such as the above. The diffusing agent may further include a diffusing agent (not shown). Preferably, the size of the diffusing agent is in the range of 4 μm to 6 μm. The resin layer 230 is made up of a first resin portion 231 and a second resin portion 232. However, the size and dimensions are not limited to these. The first resin part 231 may include a second resin part 233. The first resin part 231 may include a substrate 210 and a light source. The first resin portion 231 is disposed on the upper surface of the first substrate portion 211. and covers the upper and side surfaces of the light source 220 disposed on the first substrate portion 211. The upper surface of the first resin part 231 may be parallel to the upper surface of the substrate 210. One side surface of the first resin portion 231 may be disposed in a direction perpendicular to the upper surface of the first resin portion 231. The second resin portion 233 may cover the second substrate 213. 233 covers the top and side surfaces of the light source 220 disposed on the second substrate 213. The second substrate 213 is accommodated inside the second resin portion 233. The second resin part 233 may cover the second substrate 213 and the upper part of the light source 220. The second resin part 233 may cover the lower part of the second substrate 213. The second resin portion 233 may cover the upper and lower regions of the second substrate 213. The outer surface of the second resin portion 23 extends outward beyond the outer edge of the second substrate 213. The upper surface or surface of the second resin portion 233 may include a curved surface. The second resin portion 231 extends from one side thereof toward the outside in a curved or inclined manner. The upper surface or surface of the portion 233 is gradually closer to the light source 220 as it approaches the edge or outer end. The curved surface of the second resin portion 233 may be the upper surface of the first resin portion 231 or the second resin portion 232. The second resin portion 233 extends from the horizontal upper surface thereof to the upper surface of the curved surface portion 103. The curved surface 233 bulges outward from the light source 220 disposed on the upper surface of the second substrate 213. The surface may have a curved or bulged side.

[0021] The lower surface of the second resin portion 233 may be formed along the upper surface of the base member 103 . The lower surface of the second resin portion 233 may include a curved surface. It may be formed along the curved surface portion 103 or may contact the curved surface portion 103. The distance between the lower surface of the second resin part 233 and the light source 220 is The thickness of the upper surface of the second resin portion 233 and the thickness of the lower surface of the second resin portion 233 may be gradually increased. The width or spacing between the first and second resin portions 233 may gradually decrease toward the outer edge of the second resin portion 233. The second resin portion 233 can guide the light emitted from the upper surface of the light source 220. At the same time, the second resin portion 233 emits light through the lower surface of the light source 220 or the second substrate 213. The reflected light can be guided.

[0022] The phosphor layer 240 is formed on the resin layer 230. The phosphor layer 240 is The phosphor layer 240 is formed to cover the upper and side surfaces of the resin layer 230. The phosphor layer 240 is disposed between the phosphor layer 230 and the front lens 300. The phosphor layer 240 includes a transparent material. The phosphor layer 240 may include a transparent insulating material. 40 may be made of silicon material, and may be made of silicon material having different chemical bonds. Silicon is a polymer made up of inorganic silicon and organic carbon. As such, inorganic materials have the thermal stability, chemical stability, abrasion resistance, gloss, etc., while organic materials have the anti- It has physical properties such as flexural strength, solubility, elasticity, and workability. It can contain an increased ratio of fluorine silicon. The phosphor layer 240 is formed on the surface of the light source 220. The wavelength conversion means may include a wavelength conversion means for receiving the light to be emitted and providing wavelength-converted light. For example, the phosphor layer 240 may be made of at least one material selected from the group consisting of phosphors, quantum dots, etc. The phosphor or quantum dot may emit blue, green, or red light. The phosphor is uniformly distributed inside the phosphor layer 240. Fluoride compound phosphors may be included, such as MGF-based phosphors and KSF-based phosphors. Alternatively, the phosphor may include at least one of a red phosphor and a KTF phosphor. In this case, the red phosphor has a wavelength range of 610 nm to 650 nm. The wavelength can have a width of less than 10 nm. The phosphor layer 240 may contain 2% by weight of a fluoride-based phosphor. % to 20% by weight. The blue light emitted from the second color can be emitted as a second color of 590nm to 610nm. The phosphor layer 240 may be orange to emit blue light in full red. In the example of the invention, a red front lens is provided. Therefore, even if the phosphor content is reduced, the final emitted color can be red.

[0023] As shown in FIG. 2, the height h1 of the resin layer 230 is 5 mm or less, for example, 4 mm to 5 mm. When the height h1 of the resin layer 230 is less than 4 mm, If the height h1 of the resin layer 230 exceeds 5 mm, the manufacturing process may be interrupted. The height h2 of the phosphor layer 240 is 1 mm or less, for example, 0.5 mm. The height h2 of the phosphor layer 240 may be less than 0.5 mm. If the height h2 of the phosphor layer 240 exceeds 1 mm, the light cannot be converted effectively. The distance between the light sources 220 is 4 mm or more, for example, 4 mm to The distance between the light sources 220 may be 7 mm. If the distance between the light sources 220 is less than 4 mm, the hot spot Spots may occur, and if the distance between the light sources 220 exceeds 7 mm, the surface uniformity may decrease. Decreases.

[0024] The second resin portion 233 includes a first point P1, a second point P2, and a third point P3. The first point P1, the second point P2, and the third point P3 are located at the second resin portion 233 and the fluorescent The light source 220 may be a point on the curved surface of the second resin portion 233 that is in contact with the resin layer 240. The first light source 220a may include a first light source 220a. The first light source 220a is disposed on the side of the second resin portion 233. The first point P1 may be the light source arranged closest to the surface. It may be a region that contacts the second resin portion 233 in the horizontal direction to the substrate 210 at the center of Oa. The third point P3 is a point between a line perpendicular to the substrate 210 and the second resin part 220a. The second point P2 may be the area in contact with the first point P1 and the third point P3. The area from the center of the first light source 220a to the front of the second resin portion 233 may be any one of the areas. The third distance L3 to the third point P3 is the distance between the center of the first light source 220a and the first point P1. The first distance L1 and the second distance L2 from the center of the first light source 220a to the second point P2 are The second distance L2 between the center of the first light source 220a and the second point P2 may be large. is formed to be larger than the first distance L1 from the center of the first light source 220a to the first point P1. Conventionally, the distances between the center of the light source and the first, second, and third points are optimized. In the embodiment of the invention, the center of the first light source 220a is The curved surface of the second resin portion 233 is formed so as to reduce the second distance L2 between the second point P1 and the second point P2. This has the effect of improving the light efficiency at the second point P2.

[0025] The lighting module 200 according to the embodiment of the invention emits light toward the rear of the vehicle and toward the sides and rear of the vehicle. As shown in Figure 1, the base material A reflective member 400 may be further disposed on the curved surface 103 of the reflector 100. 00 reflects the light emitted to the lower part of the second substrate 213 and emits the light to the side and rear of the vehicle. That is, the reflective member 400 can further improve the light efficiency on the sides and rear of the vehicle. The reflective member 400 may include a white material. The reflecting member 400 may include a resin material. The reflecting member 400 may include silicone, epoxy, etc. The reflecting member 400 may include a reflective material, such as TiO2. The reflective member 400 may be provided in the form of a film. The curved surface portion 103 of the base member 100 may be formed by vapor deposition. 03 and the outer end of the reflecting member 400 are spaced the maximum distance from the bottom surface of the second substrate 213. It is possible.

[0026] The front lens 300 concentrates and irradiates light emitted from the light source 220 forward. Alternatively, the front lens 300 may serve to diffuse and irradiate the light. It may be a transparent plate that covers the top and outer area of ​​the lighting module 200. The front lens 300 may be a red lens. By forming the reflective layer 210, the light emitted from the lighting module 200 is shaped into a wavelength of 620 nm to 630 nm. The front lens 300 is formed on one side and the other side of the base member 1. The front lens 300 is formed to correspond to the shape of the rear lamp of the vehicle. The front lens 300 may include an inner lens or an outer lens. A plurality of front lenses 300 may be formed.

[0027] The optical path will be described in detail below with reference to Figure 5. Referring to Figure 5, The light source 220 disposed above emits a first light R1 of a first color in the wavelength range of 420 nm to 470 nm. Here, the first color may be blue light. The first light R1 can be incident on the resin layer 230. The first light R1 is converted from a point light source into a surface light by the resin layer 230. The first light R1 is converted into a light source. The second substrate 213 is made of a transparent material or a lattice structure. By doing so, the light can be reflected to the bottom of the second substrate 213. The first light R1 is reflected by the reflecting member 400 and enters the side surface of the second resin portion 233. The first light R1 can be incident on the phosphor layer 240. 240 is a wavelength conversion means, for example, a phosphor, which converts the first light R1 into the second light R2. Here, since the concentration of the phosphor contained in the phosphor layer 240 is low, the phosphor layer 240 can emit a part of the first light R1 that has not been optically converted. This may be less than 3% of the total light. The phosphor layer 24 can emit a second color light in the wavelength range of 10 nm. 0 can act as a diffuser in the process of converting the first light R1 into the second light R2. The first light R1 and the second light R2 emitted from the phosphor layer 240 are incident on the front lens 300. At this time, since the front lens 300 is formed in red, the first light R1 is incident on the front The first light R1 is absorbed by the lens 300 and disappears. Since only the second light R2 exists, the light emitted from the exit surface of the front lens 300 is It is possible to emit third light R3 of a third color in the wavelength range of 620 nm to 630 nm.

[0028] In the lighting device according to the embodiment of the invention, the substrate 210 is horizontally arranged, so that the arrangement at the rear At the same time, the second substrate 213 can be made of a transparent material or By forming the light source into a lattice structure, the efficiency of light emitted to the sides and rear of the vehicle can be increased.

[0029] FIG. 6 is a schematic cross-sectional view showing a vehicle lamp according to a second embodiment of the present invention, and FIG. 10 is a diagram illustrating the direction of travel of light from a vehicle lamp according to a second embodiment.

[0030] Referring to FIG. 6, a vehicle lamp according to a second embodiment of the invention includes a base member 100 and a front A lighting device, for example, a lighting module 200, is disposed on the base member 100. A front lens 300 disposed on the lighting module 200 and a lens element 301 disposed on the base member The lighting module 200 may include a reflective member 400. The structure of the vehicle lamp according to the first embodiment is the same as that of the base, and therefore will be explained briefly. The member 100 may include a straight portion 101 and a curved portion 103. The straight portion 101 may be The curved surface portion 103 may be formed toward the rear of the vehicle. The straight portion 101 may have a side wall for supporting the front lens 300. The lighting module 200 is disposed on the base member 100. The lighting module 200 can emit light toward the rear and sides of the vehicle. The lighting module 200 is assembled to fit the shape of the base member 100 and can be mounted on the vehicle. The reflecting member 400 can emit light that satisfies the light distribution regulations for the rear and side rear of the vehicle. The reflecting member 400 is disposed on the curved surface portion 103 of the base member 100. The front lens reflects the light emitted from the bottom of the vehicle and emits it to the side and rear of the vehicle. 300 is a light source that can condense and irradiate light emitted from the light source 220 forward, or conversely, can condense and irradiate light. The front lens 300 may be a red lens. The front lens 300 can include an inner lens or an outer lens.

[0031] On the other hand, the lighting module according to the second embodiment includes a substrate 210 and a a resin layer 230 disposed on the light sources 220; The substrate 210 may include a base portion 220 and a phosphor layer 240 disposed on the layer 230. The first substrate 211 is disposed on the straight portion 101 of the base member 100, and the curved portion of the base member 100 is disposed on the straight portion 101 of the base member 100. The second substrate 213 may include a second substrate 213 disposed on the light source 2. The light emitted from the first substrate 20 may be directed to the lower part of the second substrate 213. The substrate and the second substrate are formed in the same structure as in FIGS. 3 and 4, and reference is made to the above description. This can be selectively applied to the second embodiment.

[0032] The light source 220 is disposed on the substrate 210. The light source 220 may include a light emitting element. The light source 220 emits blue light in the range of 420 nm to 470 nm, which has the highest light efficiency. The light source 200 is disposed on the first substrate 211 and the second substrate 213. The light source 220 may include a plurality of light sources 220. The light source 220 is disposed below the second substrate 213. The second light source 221 may include a plurality of light sources. The second light source 221 can emit light to the lower part of the second substrate 213. The light emitted to the side is reflected by the reflecting member 400 and emitted to the side surface of the second resin portion 233. The resin layer 230 may include a first resin portion 231 and a second resin portion 233. The first resin portion 231 is disposed on the substrate 210 and the light source 220. The second resin portion 231 is formed to cover the upper and side surfaces of the plurality of light sources 220. 33 accommodates the second substrate 213, the plurality of light sources 220 and the second light source 221 therein. The second resin portion 233 covers the second substrate 213 and the upper part of the light source 220, and The phosphor layer 240 is disposed so as to cover the lower portion of the resin layer 213 and the second light source 221. The phosphor layer 240 is formed on the resin layer 230 so as to cover the upper and side surfaces of the resin layer 230. The phosphor layer 240 is disposed between the resin layer 230 and the front lens 300. The phosphor layer 240 may contain a phosphor therein. The amount of the inorganic filler may be 2% by weight to 20% by weight. The composition can be selectively applied.

[0033] As shown in FIG. 7, the light emitted by the light source disposed above the substrate is As shown in FIG. 7, the light emitted from the second light source 221 may be The first light R1 is incident on the second resin portion 233 and reflected by the reflecting member 4. The first light R1 that reaches the reflecting member 400 is reflected by the reflecting member 400. The first light R1 is reflected by the second resin portion 233 and emitted to the side surface of the second resin portion 233. The light may be reflected toward the upper part of the substrate 213. The first light R1 is converted into the second light R2 by the phosphor layer 240. The phosphor layer 240 can be transmitted through the phosphor layer 240. Since the first light R1 is transmitted through the phosphor layer 240, a part of the first light R1 is not converted. R1 is absorbed by the red front lens 300, which then absorbs a third light of a third color, R3 Such a configuration can be realized by selectively applying the configuration of the first embodiment. The embodiment of the invention further includes a plurality of second light sources 221 on the rear surface of the second substrate 213. This has the effect of further improving the light efficiency at the rear and sides of the vehicle.

Claims

1. A substrate; a plurality of light sources disposed on an upper surface of the substrate; a resin layer disposed on the upper surface of the substrate; a phosphor layer disposed on the resin layer, The resin layer is a first resin portion extending from one end of the substrate to the other end by a predetermined length and having a first thickness that is constant from one end to the other end; a second resin portion extending from the other end of the first resin portion to the other end of the substrate and having a second thickness that is variable and decreases toward the other end of the substrate; a third resin portion covering a part of the lower surface of the substrate; a connecting portion that connects the second resin portion and the third resin portion and covers a side surface of the other end portion of the substrate, the plurality of light sources are disposed in the first resin portion and the second resin portion of the resin layer, at least a portion of the third resin portion and the second resin portion overlap in a direction penetrating the substrate, The third resin portion has a third thickness that is variable and increases in thickness in a direction from the other end of the first resin portion toward the other end of the substrate.

2. The lighting device according to claim 1 , wherein an upper surface of the second resin portion and a lower surface of the third resin portion have curved surfaces.

3. The lighting device according to claim 1 , wherein a vertical distance between an upper surface of the second resin portion and the substrate is shorter than a vertical distance between an upper surface of the first resin portion and the substrate.

4. The lighting device according to claim 1 , wherein an upper surface of the first resin portion has a flat surface.

5. The lighting device according to claim 1 , wherein the phosphor layer forms a curved surface along an upper surface of the second resin portion.

6. the substrate has a first region below the first resin portion and a second region below the second resin portion; The lighting device according to claim 1 , wherein the first and second regions of the substrate are arranged horizontally.

7. 7. The lighting device of claim 6, wherein a vertical distance between the light source disposed on the second region of the substrate and the phosphor layer is smaller than a vertical distance between the light source disposed on the first region of the substrate and the phosphor layer.

8. The lighting device according to claim 1 , wherein the phosphor layer extends to a surface of the third resin portion.

9. A base member including a straight portion, a side wall portion extending from one side end of the straight portion, and a curved portion extending from the other side end of the straight portion; a front lens having one end connected to an end of the side wall portion and the other end connected to an end of the curved surface portion; A vehicle lamp comprising the lighting device according to any one of claims 1 to 8 provided in an interior space defined by the base member and the front lens.

10. A vehicle lamp as described in Claim 9, characterized in that the third resin portion covers the curved portion.

11. A vehicle lamp as described in claim 10, further comprising a reflective member arranged between the third resin portion and the curved portion.

12. Further comprising a second light source disposed on the underside of the substrate; The vehicle lamp according to claim 10, wherein the second light source is disposed within the third resin portion.

13. A vehicle lamp as described in claim 10, characterized in that a portion of the substrate whose upper surface contacts the second resin part and whose lower surface contacts the third resin part is made of a transparent material.

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