Optical assembly and rearview mirror assembly having the same

Abstract

The optical assembly disclosed in the embodiments of the invention includes a resin layer, a lighting module having a light-emitting element inside the resin layer and one side of the lighting module having an emission surface that emits surface light, a recess at the bottom of the emission side of the lighting module and a reflector having an aspherical curved surface at the bottom of the recess, and a transparent cover on top of the recess, and can reflect surface light to a set area.

Description

[Technical Field]

[0001] An embodiment of the invention relates to an optical assembly that emits area light.

[0002] SUMMARY OF THE INVENTION An embodiment of the invention relates to an optical assembly for generating and reflecting surface light through a mirror on a vehicle, and a rearview mirror assembly having the same. [Background technology]

[0003] Lighting applications include not only vehicle lighting but also backlighting for displays and signs. Light-emitting devices, such as light-emitting diodes (LEDs), offer advantages over existing light sources such as fluorescent lamps and incandescent lamps, including low power consumption, a semi-permanent lifespan, fast response speed, safety, and environmental friendliness. These light-emitting devices are used in various display devices and various lighting devices, such as interior and exterior lights. Recently, lamps employing light-emitting devices have been proposed as vehicle light sources. Compared to incandescent lamps, light-emitting devices have the advantage of low power consumption. However, because the light emitted from light-emitting devices has a small angle of emergence, there is a demand for an increased luminous area when using light-emitting devices as vehicle lamps. The small size of light-emitting devices allows for greater freedom in lamp design, and their semi-permanent lifespan also makes them economical.

[0004] As an example, LEDs can be applied to a blind spot detection (BSD) system. A blind spot detection system is a vehicle sensor that detects other vehicles located behind and beside the driver and provides the driver with information about the detected vehicles visually, audibly, tactilely, etc. In such a blind spot detection system, LEDs are arranged in the side mirrors, rearview mirrors, or A-pillar area of ​​the vehicle to visually provide the driver with information about the rear side.

[0005] However, since light is emitted from the LED in various directions, visual information is not effectively provided to the driver. Also, the light emitted from the LED may be emitted in the direction of the driver of another vehicle, obstructing their view and potentially causing an accident. Recently, research has been conducted on rearview mirrors for vehicles or vehicles that use a light source together with the mirror. Summary of the Invention [Problem to be solved by the invention]

[0006] An embodiment of the invention may provide an optical assembly having a light source module that emits surface light and an aspherical reflective surface that reflects the surface light in a set direction. An embodiment of the invention may provide an optical assembly having an aspherical reflective surface in a part of a housing that houses a light source module that emits surface light and reflects the surface light in a set direction. An embodiment of the invention may provide an optical assembly and a rearview mirror assembly that reflects surface light emitted sideways in a set direction with an aspherical reflector disposed in the concave bottom of the housing. An embodiment of the invention may provide an optical assembly and a rearview mirror assembly that can illuminate an indicator with the surface light reflected within the housing. An embodiment of the invention may provide a rearview mirror assembly or a side mirror for a vehicle that includes an optical assembly. [Means for solving the problem]

[0007] An optical assembly according to an embodiment of the invention may include a lighting module having a resin layer, a light-emitting element inside the resin layer, and an emission surface on one side for emitting light, a recess at a lower part of the emission side of the lighting module, a reflective part having an aspherical curved surface at the bottom of the recess, and a transparent cover on top of the recess.

[0008] According to an embodiment of the invention, the lighting module may include a support having a storage portion in which the lighting module is disposed, an inner wall extending from the support to a lower end of the reflector, and an outer wall disposed around an upper portion of the reflector and the support, wherein the curved surface of the reflector may have a depth that gradually deepens as it approaches a lower end of one side of the light-emitting surface. The curved surface of the reflector may have a height that gradually increases from a lower end of one side of the light-emitting surface to a lower end of the other side of the light-emitting surface. According to an embodiment of the invention, the lighting module may include a substrate on which the light-emitting element is disposed, a first reflector on the resin layer, and a second reflector between the resin layer and the substrate, wherein the resin layer seals the light-emitting element, and the light-emitting surface is disposed parallel to one light-emitting surface of the light-emitting element. According to an embodiment of the invention, the height of the light-emitting surface of the lighting module may be the same as the thickness of the resin layer, and the thickness of the resin layer may be 4 mm or less, and the upper surface of the support may be flat. The upper end of the curved surface of the reflective portion may be positioned at the same level as or lower than a line extending horizontally from the bottom surface of the lighting module, and the periphery of the transparent cover may be disposed on a stepped portion disposed on the outer wall. A length of a first side adjacent to one side of the resin layer may be longer than a length of a second side opposite the first side. According to an embodiment of the invention, the lighting module may include a housing having the reflective portion, a support portion, an inner wall, and an outer wall, and a reflective layer made of a metallic material is formed on the reflective portion. According to an embodiment of the invention, the lighting module may include a light-blocking member disposed on upper surfaces of the housing and the transparent cover, the light-blocking member having an opening overlapping with the recess.

[0009] A rearview mirror assembly according to an embodiment of the invention includes: a housing including a support portion having a storage portion in one region and a reflector portion having a concave recess in another region; an illumination module disposed in the storage portion and having an exposed light-emitting surface facing the recess; a transparent cover disposed on the storage portion and the recess; and a light-blocking member disposed on an upper surface of the housing and on the transparent cover, having an opening in a region overlapping with the recess, wherein the bottom of the recess has a curved surface that becomes deeper toward a lower end of one side of the light-emitting surface. The illumination module includes a substrate, a light-emitting element on the substrate, and a resin layer covering the light-emitting element. The illumination module emits surface light from the light-emitting surface, and the surface light is reflected by the reflector and emitted through the opening.

[0010] According to an embodiment of the invention, the vehicle may include a back plate in which the housing is accommodated, a rearview mirror, and at least one indicator formed on at least one region of the rearview mirror and the light blocking member. [Effects of the Invention]

[0011] According to an embodiment of the invention, the optical assembly can emit surface light, have improved luminous intensity and improved light uniformity, and can suppress the occurrence of hot spots in the illumination area and minimize light loss.

[0012] According to an embodiment of the present invention, horizontally linear surface light can be focused in a set direction by an aspherical reflector, and the brightness of the light provided in the set direction can be controlled. According to an embodiment of the present invention, the optical assembly can minimize light loss within the rearview mirror, maximize the emitted light, and adjust the brightness of the light according to a set direction. As a result, the rearview mirror can provide relatively high-brightness light to the driver of a vehicle and relatively low-brightness light to other vehicles located behind the vehicle. Therefore, it is possible to prevent or minimize interference with the driver of a vehicle located behind the vehicle by the light emitted from the mirror. The optical assembly according to an embodiment of the present invention and a rearview mirror assembly including the same can improve the reliability of a warning device. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 1 is a cross-sectional side view conceptually illustrating an optical assembly according to an embodiment of the invention. [Figure 2] FIG. 2 is a view of the optical assembly of FIG. 1 as seen from the B-B side. [Figure 3] FIG. 3 is a cross-sectional side view of an example lighting module of the optical assembly of FIG. [Figure 4] FIG. 4 is a diagram showing the housing, lighting module and transparent cover of an optical assembly according to an embodiment of the invention. [Figure 5] FIG. 5 shows an example in which a light blocking layer having an opening is laminated on the optical assembly of FIG. [Figure 6] FIG. 6 is an example of a front view of the optical assembly of FIG. [Figure 7] FIG. 7 is an example of an exploded perspective view of the optical assembly of FIG. [Figure 8] 8 is a perspective view of the optical assembly of FIG. 6 with a lighting module coupled to the housing. [Figure 9]9 is a perspective view of a substrate on which light emitting elements and components are mounted in the lighting module of FIG. [Figure 10] FIG. 10 is a perspective view of the housing of FIG. 7 with a transparent cover attached thereto. [Figure 11] FIG. 11 is an example of a cross-sectional side view of the optical assembly of FIG. 6 taken along line BB. [Figure 12] 12A and 12B are diagrams illustrating the reflection path at the recessed reflecting portion of the housing of the optical assembly of FIG. [Figure 13] FIG. 13 is a partial cross-sectional side view of the optical assembly of FIG. [Figure 14] FIG. 14 is a front view of a back plate in a rearview mirror assembly to which the optical assembly of FIG. 6 or FIG. 10 is coupled. [Figure 15] FIG. 15 shows an example of left and right rearview mirrors arranged on a vehicle according to an embodiment of the invention. [Figure 16] FIG. 16 is a diagram for explaining the intensity of luminance values ​​in left and right rearview mirrors arranged on a moving body according to an embodiment of the invention. [Figure 17] FIG. 17 is a diagram for explaining a warning issued by the left and right rearview mirrors in response to the movement of a moving object according to an embodiment of the invention. [Figure 18] FIG. 18 is an example of a front view of a light emitting element of a lighting module according to an embodiment of the invention. [Figure 19] FIG. 19 is a perspective side view of the light emitting device of FIG. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will enable those skilled in the art to easily carry out the present invention. However, it should be understood that the embodiments described herein and the configurations illustrated in the drawings are merely preferred embodiments of the present invention, and that various equivalents and modifications may exist at the time of filing this application. When describing the operating principles of preferred embodiments of the present invention in detail, detailed descriptions of related well-known functions or configurations will be omitted if they are deemed to unnecessarily interfere with the gist of the present invention. Terms used below are defined in consideration of the functions of the present invention, and the meanings of each term should be interpreted based on the overall content of this specification. The same reference numerals will be used throughout the drawings to refer to parts having similar functions and functions. The technical concept of the present invention is not limited to the described embodiments, but may be embodied in various different forms, and one or more components of the embodiments may be selectively combined or substituted within the scope of the technical concept of the present invention. Furthermore, unless expressly specified otherwise, terms (including technical and scientific terms) used in the embodiments of the present invention are to be interpreted as meanings commonly understood by those skilled in the art to which the present invention pertains. Commonly used terms, such as dictionary-defined terms, may be interpreted in light of the context of the relevant technology. Furthermore, terms used in the embodiments of the present invention are intended to describe the embodiments and are not intended to limit the present invention. In this specification, singular forms can also include plural forms unless otherwise specified. For example, "A and at least one (or more) of B and C" refers to "one or more of all possible combinations of A, B, and C." Furthermore, terms such as "first," "second," "A," "B," "(a)," and "(b)" can be used to describe elements of the embodiments of the present invention. These terms are used to distinguish elements from other elements, and do not limit the nature or order of the elements.When a component is described as being "coupled," "coupled," or "connected" to another component, this includes both cases where the component is directly coupled or connected to the other component, and cases where further components are "coupled," "coupled," or "connected" between the components. Also, when a component is described as being formed or located "above or below" another component, "above or below" includes not only cases where the two components are in direct contact, but also cases where one or more further components are formed or located between the two components. Furthermore, when the term "above or below" is used, it can mean not only the upper direction but also the lower direction based on one component.

[0015] The lighting module or optical assembly according to the present invention can be applied to various lamp devices requiring illumination, such as vehicle lamps, home lighting devices, and industrial lighting devices. For example, when applied to vehicle lamps, it can be used for headlamps, sidelights, side mirror lights, fog lamps, tail lamps, brake lights, daytime running lights, vehicle interior lighting, door scuffs, rear combination lamps, backup lamps, etc. The lighting module or optical assembly according to the present invention can also be used in indoor and outdoor advertising devices, display devices, and various mobile or train fields. It can also be used in all lighting and advertising fields that are currently developed and commercialized or that can be realized through future technological developments.

[0016] <Optical Assembly> 1 and 2 are a side cross-sectional view conceptually illustrating an optical assembly according to an embodiment of the invention, and a drawing seen from the B-B side thereof; FIG. 3 is a side cross-sectional view showing an example of an illumination module of the optical assembly of FIG. 1; FIG. 4 is a drawing showing a housing, an illumination module, and a transparent cover of an optical assembly according to an embodiment of the invention; FIG. 5 is an example in which a light-blocking layer having an opening is laminated in the optical assembly of FIG. 4; FIG. 6 is an example of a front view of the optical assembly of FIG. 5; and FIG. 7 is an example of an exploded perspective view of the optical assembly of FIG. 6. 8 is a perspective view of the optical assembly of FIG. 6 with a lighting module coupled to the housing, FIG. 9 is a perspective view of the substrate on which the light-emitting element and components are mounted in the lighting module of FIG. 4, FIG. 10 is a perspective view of the housing in FIG. 7 with a transparent cover coupled thereto, FIG. 11 is an example of a cross-sectional side view B-B of the optical assembly of FIG. 6, (A) and (B) of FIG. 12 are drawings explaining the reflection path in the concave reflecting portion of the housing of the optical assembly of FIG. 8, and FIG. 13 is a partial cross-sectional side view of the optical assembly of FIG. 6.

[0017] 1 and 2, the optical assembly 501 is coupled to a side mirror or rearview mirror coupled to the left and right sides of a vehicle, and can alert the driver of the vehicle, for example, a vehicle, to the presence or absence of an object located to the side or rear of the vehicle through visual information and indicator identification information or an icon. Here, the object may be a moving or stationary object. The side mirror or rearview mirror can rotate, retract, or protrude from the left and right sides of the vehicle.

[0018] The optical assembly 501 may include an illumination module 200, a first receiving portion R2 in which the illumination module 200 is received, and a reflecting portion 510 having a recess R1 that reflects surface light emitted from the illumination module 200. A transparent cover 530 that transmits light is disposed on the illumination module 200 and / or the reflecting portion 510. A light-blocking member 540 having an opening OP1 is disposed on the transparent cover 530. The illumination module 200 generates and emits surface light, and the emitted surface light is reflected by the reflecting portion 510 toward a predetermined area A1 or a light-collecting area. Here, the predetermined area A1 or the light-collecting area may be in the direction of a driver of a vehicle. The illumination module 200 includes a light emitting element 100, which diffuses light generated from the light emitting element 100 to emit surface light. At this time, the width or height of the emission surface S1 from which the surface light is emitted may be 4 mm or less, i.e., may have a line width of 4 mm or less. As a result, the surface light is provided in the form of a linear surface light having a width of the light output surface S1. In Fig. 2, the light output surface S1 of the lighting module 200 has a maximum length Y1, which may be greater than the length of the opposite surface.

[0019] 1, the recess R1 of the reflector 510 may have a greater depth as it is closer to the light emitting surface S1 of the lighting module 200 and a smaller depth as it is farther from the lighting module 200. The surface of the reflector 510 or the bottom surface of the recess R1 may include a curved surface. The surface of the reflector 510 or the bottom surface of the recess R1 may have an aspherical or freeform shape. The curved surface of the reflector 510 is disposed in an area lower than a horizontal extension of the support part 511 on which the lighting module 200 is disposed, and can reflect incident light toward the transparent cover 530.

[0020] 2 is a view taken along the B-B line of the inner wall 515 near the light-emitting surface S1 of the lighting module 200 in FIG. 1. The inner wall 515 is lowest at its lower end K11 and gradually increases in height or curves toward its other side K12. The inner wall 515 is gradually deepened from the other side K12 toward the lower end K11 along its lower end, thereby adjusting the reflection angle of the curved surface of the reflective portion 510 extending to the lower end of the inner wall 515. The deepest point K1 of the recess R1 may be the bottom point of the recess R1 relative to the optical axis of the light emitting device 100. That is, the curved surface of the reflective portion 510 extends from the low point K1 to a lower end K11 adjacent to one end of the light-emitting surface S1 of the lighting module 200 and an upper end K12 adjacent to the other end of the light-emitting surface S1.

[0021] The surface light reflected by the reflecting unit 510 may be transmitted through the transparent cover 530. Since the reflecting unit 510 has an aspherical surface, the optical assembly 501 can ensure uniformity of light in a predetermined area A1 and provide a desired brightness (e.g., 6000 nits) or more. Here, the reflecting unit 510 may include a material having a reflectivity of 50% or more, and the reflection characteristic is Gaussian or mirror reflection. The light blocking member 540 may have an opening OP1 that partially transmits light. The light blocking member 540 may be attached to the transparent cover 530 or to the rear surface of the rearview mirror. The light blocking member 540 may be a part of the optical assembly 501 or a part of the rearview assembly, but is not limited thereto.

[0022] The light blocking member 540 may include at least one of a binder resin, a photopolymerization initiator, a black pigment, and a solvent, and the binder resin may include, for example, an epoxy resin, an acrylic resin, a polyimide resin, a phenol resin, a silicone resin, or a cardo resin. The light blocking member 540 may be made of a resin-based or epoxy-based black material and may include a light blocking, reflective, or water absorbing additive therein. The light blocking member 540 may include a high refractive index inorganic dispersion, such as at least one selected from TiO sol, SrTiO sol, ZnS, ZnSe, potassium bromide, AgCl, MgO, cesium iodide, cesium bromide, CaCO 3, phosphorus tribromide, phenyl trichloride, Triochroman-4-one, thionyl bromide, ZnO 2, CeO 2, ITO sol, Ta 2 O 5, Ti 2 O 5, Ti 2 O 3, ZrO 2, Br 2, CS 2, ZrO 2 -TiO 2 based sol, and SiO 2 -Fe 2 O 3 based compound. The light blocking member 540 may include a light absorbing material or a heat absorbing or heat dissipating material.

[0023] The lighting module 200 is disposed on a support 511, which may be flat or planar. The lighting module 200 has a light emitting element 100 therein, and emits light emitted from the light emitting element 100 as surface light through an emission surface S1. The thickness of the lighting module 200 is provided in a range of 5 mm or less, for example, 3 mm to 5 mm, as a maximum distance from the bottom surface to the top surface.

[0024] 1 and 3, the lighting module 200 may include a substrate 210, at least one light emitting device 100 on the substrate 210, and a resin layer 220 covering the substrate 210 and the light emitting device 100. The lighting module 200 may further include a first reflecting member 240 on an upper surface of the resin layer 220 and / or a second reflecting member 230 between the substrate 210 and the resin layer 220. The second reflecting member 230 is disposed above the substrate 210 and below the resin layer 220. The first and second reflecting members 240 and 230 can reflect incident light toward an output surface S1.

[0025] The substrate 210 may include a printed circuit board (PCB), such as a resin-based printed circuit board (PCB), a metal core PCB, a flexible PCB, a ceramic PCB, or an FR-4 substrate. The substrate 210 may be made of a flexible or rigid material. A circuit pattern is disposed on the substrate 210. The circuit pattern of the substrate 210 may include a plurality of pads (e.g., 213) in an area corresponding to the light emitting device 100. The light emitting device 100 is electrically connected to the substrate 210 through a bonding member 217. The light emitting device 100 has a bonding portion disposed on a bottom thereof, and the bonding portion is electrically connected to the pads of the substrate 210. When there are a plurality of light emitting devices 100, the light emitting devices 100 may be connected in series or in parallel. The thickness of the substrate 210 may be smaller than that of the light emitting device 100.

[0026] The light emitting device 100 emits light through one surface, which may be defined as a light emitting surface S2 or one side surface. The light emitting surface S2 of the light emitting device 100 may be a side surface adjacent to the substrate 210 and perpendicular to the upper surface of the substrate 210. The light emitting surface S2 is disposed on a side surface between the bottom and upper surfaces of the light emitting device 100, and emits light to the light emitting surface S1 of the resin layer 220 through the light emitting surface S2. The light emitting surface S2 of the light emitting device 100 may be a surface adjacent to the second reflecting member 230 and perpendicular to the upper surface of the substrate 210 and the upper surface of the second reflecting member 230. The thickness of the light emitting device 100 may be smaller than the length of one side (e.g., the length of the long side) of the light emitting device 100. The thickness of the light emitting device 100 may be 2.5 mm or less, for example, 2 mm or less. For example, the thickness of the light emitting device 100 may be in the range of 0.8 mm to 2 mm, for example, 1 mm to 1.8 mm. The thickness of the light emitting device 100 may be twice or more the thickness of the substrate 210, for example, in the range of two to four times. The height Z0 of the upper surface of the light emitting device 100 may be lower than the upper surface of the resin layer 220. Since the substrate 210 is provided to be thin, the lighting module 200 can be provided as a flexible plate.

[0027] The light emitting device 100 may include an element having an LED chip or a package in which an LED chip is packaged. For example, the light emitting device 100 is packaged with a light emitting chip 71, i.e., an LED chip, disposed in a cavity 20, and the open area of ​​the cavity 20 serves as a light emitting surface S2. The light emitting chip may emit at least one of blue, red, green, and ultraviolet (UV) light. The light emitting device 100 may emit at least one of white, blue, red, and green light. The light emitting device 100 emits light laterally, and the substrate 210 is disposed on the support 511. For example, the light emitting device 100 may be a side-view type package or a package having one side with the light emitting surface S2. As another example, the light emitting device 100 may be an LED chip, with one side of the LED chip open and the other side covered with a reflective member. Alternatively, the LED chip may be disposed on the substrate 210, and light may be emitted through the top and side surfaces of the LED chip.

[0028] The resin layer 220 may be made of a light-transmitting material such as silicone or epoxy. The resin layer 220 may also include a glass material. The resin layer 220 may be a layer without impurities or may include impurities such as a diffusing agent. The resin layer 220 may include at least one of a silicone-based material, a silicone molding compound (SMC), an epoxy-based material, or an epoxy molding compound (EMC). The resin layer 220 may include a UV (ultraviolet) curable resin or a thermosetting resin material, such as PC, OPS, PMMA, or PVC. For example, the resin layer 220 may be made primarily of a resin material containing urethane acrylate oligomer as its main ingredient. For example, a mixture of a synthetic oligomer, urethane acrylate oligomer, and a polymer type such as polyacrylic may be used. Of course, a monomer containing low-boiling point dilutable reactive monomers such as IBOA (isobornyl acrylate), HPA (hydroxylpropyl acrylate), and 2-HEA (2-hydroxyethyl acrylate) may be further included, and a photoinitiator (e.g., 1-hydroxycyclohexyl phenyl-ketone) or an antioxidant may be added as an additive.

[0029] Beads (not shown) may be included in the resin layer 220, and the beads may diffuse and reflect incident light to increase the amount of light. The resin layer 220 may include a phosphor. The phosphor may include at least one of yellow, green, blue, and red phosphors.

[0030] The width or height of the light-emitting surface S1 of the resin layer 220 may be 4 mm or less, for example, 3 mm or less, or may be more than 1 time but not more than 2 times the thickness of the light-emitting device 100. The thickness Z1 of the resin layer 220 may be 3 mm or less, for example, in the range of 1.5 mm to 3 mm or 1.6 mm to 2.5 mm. The resin layer 220 is formed on the substrate 210 with a uniform thickness Z1. The lighting module 200 emits surface light having a narrow line width and can make the light incident on the reflector 510 with a uniform luminance distribution. The reflector 510 can reflect and collect the light in a predetermined area by a convex curved surface facing downward. The top surface area of ​​the resin layer 220 may be the same as the top surface area of ​​the substrate 210. The top surface area of ​​the resin layer 220 may be the same as the top surface area of ​​the second reflector 230 and / or the first reflector 240. As shown in FIGS. 7 and 8, a length D2 of a first side surface Sa1 of the lighting module 200 may be greater than a length D3 of a second side surface Sb1 opposite the first side surface Sa1. The first side surface Sa1 and the second side surface Sb1 may be surfaces extending from both ends of the light-emitting surface S1. The distance between the first side surface Sa1 and the second side surface Sb1 may be the length of the light-emitting surface S1 and may be greater than the lengths D2 and D3. The light-emitting surface S2 and the light-emitting surface S1 are arranged parallel to each other. For example, a straight line extending in the length direction of the light-emitting surface S2 and a straight line extending in the length direction of the light-emitting surface S1 are parallel to each other. This allows light emitted from the light-emitting element 100 and traveling along the optical axis to pass through the light-emitting surface S1 without being reflected by the light-emitting surface S1.

[0031] The resin layer 220 is disposed between the first and second reflective members 240 and 230. The upper surface of the second reflective member 230 and the lower surface of the first reflective member 240 may face each other at the upper and lower surfaces of the resin layer 220. The upper surface of the first reflective member 230 and the lower surface of the second reflective member 230 may have the same area. Thus, the resin layer 220 can diffuse and guide the light emitted from the light emitting device 100 and the light reflected by the first and second reflective members 240 and 230 in a lateral direction.

[0032] The resin layer 220 is formed to a thickness greater than that of the light emitting device 100, thereby protecting the upper portion of the light emitting device 100 and preventing moisture penetration. Therefore, a distance Z4 between the upper surface of the resin layer 220 and the light emitting device 100 is 0.6 mm or less, for example, in a range of 0.3 mm to 0.6 mm. The thickness Z1 of the resin layer 220 is the distance between the first and second reflective members 240 and 230, and the distance (e.g., Z1) between the first and second reflective members 240 and 230 may be smaller than the distance between two opposing sides of the resin layer 220. The distance or spacing between the second reflective member 230 and the first reflective member 240 is smaller than the width or height of the lighting module 200, thereby providing a line-shaped surface light in the lighting module 200, improving luminosity and preventing hot spots. The second reflective member 230 reflects light emitted from the light emitting device 100. The second reflective member 230 is formed on the upper surface of the substrate 210. The second reflective member 230 may be formed as an upper layer of the substrate 210 or as a separate layer. The second reflective member 230 may be attached to the upper surface of the substrate 210 with an adhesive. The resin layer 220 is formed on the upper surface of the second reflective member 230. The second reflective member 230 has an opening 232 in an area corresponding to the lower surface of the light emitting device 100, and the light emitting device 100 is connected to the substrate 210 through the opening 232. A portion of the first resin layer 220 may contact the substrate 210 through the opening 232. The opening 232 may be an area where the light emitting device 100 is bonded to the substrate 210. The second reflective member 230 may have a single-layer or multi-layer structure. The second reflective member 230 may include a light-reflecting material, for example, a metal or non-metal material. If the second reflective member 230 is made of metal, it may include a metal layer such as stainless steel, aluminum (Al), or silver (Ag), and if it is made of a non-metallic material, it may include a white resin material or a plastic material. The second reflective member 230 may include a white resin material or a polyester (PET) material.The second reflective member 230 may include at least one of a low-reflection film, a high-reflection film, a diffused-reflection film, or a regular-reflection film. The second reflective member 230 may be provided as a regular-reflection film for reflecting incident light, for example. The second reflective member 230 may include a dot pattern on its upper surface. One side of the second reflective member 230 may be disposed on the same plane as one side of the resin layer 220. As another example, the resin layer 220 may be disposed on an end of the second reflective member 230 to prevent moisture from penetrating from the outside.

[0033] The thickness of the second reflective member 230 may be less than the thickness of the substrate 210. The thickness of the second reflective member 230 is at least 0.5 times the thickness of the substrate 210, thereby reducing the transmission loss of incident light. The thickness of the second reflective member 230 may be in the range of 0.2 mm to 0.4 mm. If the thickness is less than this range, light transmission loss may occur, and if the thickness is greater than this range, the thickness of the lighting module 200 may increase. The thickness of the first reflective member 240 may be less than the thickness of the substrate 210. The thickness of the first reflective member 240 is at least 0.5 times the thickness of the substrate 210, thereby reducing the transmission loss of incident light. The thickness of the first reflective member 240 may be in the range of 0.2 mm to 0.4 mm. If the thickness is less than this range, light transmission loss may occur, and if the thickness is greater than this range, the thickness of the lighting module 200 may increase. The first reflective member 240 is disposed over the entire upper surface of the resin layer 220, thereby reducing the light loss. The first reflective member 240 may be made of the same material as the second reflective member 230. The first reflective member 240 may be made of a material with higher light reflectivity or a greater thickness than the second reflective member 230 to reflect light and reduce light transmission loss. The first reflective member 240 may be made of the same thickness as the second reflective member 230 or may be made of a greater thickness. For example, the first and second reflective members 240 and 230 may be made of the same material and have the same thickness. The first reflective member 240 may have a single-layer or multi-layer structure. The first reflective member 240 may include a light-reflecting material, such as a metal or non-metallic material. If the first reflective member 240 is metallic, it may include a metal layer such as stainless steel, aluminum (Al), or silver (Ag). If the first reflective member 240 is non-metallic, it may include a white resin material or a plastic material. The first reflective member 240 may include a white resin material or a polyester (PET) material. The first reflecting member 240 may include at least one of a low reflection film, a high reflection film, a diffuse reflection film, or a regular reflection film. For example, the first reflecting member 240 may be provided as a regular reflection film so that incident light travels toward the first surface S1.

[0034] Here, a light extraction structure such as a concavo-convex structure is disposed on the light exit surface S1 of the resin layer 220. This can improve the extraction efficiency of light emitted through the resin layer 220. The light exit surface S1 is treated to have a haze surface to diffuse light. The haze surface is treated to be rougher than the other surfaces Sa1 and Sb1 of the resin layer 220 to diffuse the emitted light. The lighting module 200 according to an embodiment of the invention has a line-shaped thickness in the height direction, and can provide a flexible line-shaped surface light source.

[0035] As shown in FIGS. 1 and 2, the support member 511 and the reflector 510 are connected by an inner wall 515. The maximum height h1 of the inner wall 515 may be 0.5 cm or less, for example, in the range of 0.4 cm to 0.5 cm. A reflective layer is formed on the surface of the inner wall 515. The recess R1 of the reflector 510 may have a curved surface that is convex toward the bottom. The surface of the reflector 510 may be a mirror surface having an aspherical shape, or a reflective layer may be formed. The surface of the reflector 510 may be formed by connecting curved surfaces having different curvatures to form the shape of the inner surface of the reflector 510. The reflective layer may be made of a metal, such as aluminum, silver, gold, copper, or an alloy thereof. An outer wall 520 extends from the upper end of the reflector 510 and may face the light-emitting surface S1 of the lighting module 200. A reflective layer is formed on the inner surface of the outer wall 520. The outer wall 520 extends in a vertical direction from the upper end of the reflector 510, or has a concave or convex inner surface and extends in the vertical direction. Here, the vertical direction may be a vertical direction based on the direction of the optical axis of the light emitted from the light emitting device 100, or a direction from the lower surface to the upper surface of the lighting module 200. The outer wall 520 is disposed around the upper part of the reflector 510 and the upper part of the support part 511. Thus, the outer wall 520 can cover the outside of the lighting module 200. An open area Ra between the outer wall 520 and the lighting module 200 may be an upper area of ​​the recess R1 or an area connected to the receiving part R2. A curved upper end K2 of the reflector 510 may be positioned at the same level as or lower than a line extending from the support part 511 or the lower surface of the lighting module 200. In addition, the light emitting surface S2 may be positioned higher than the curved upper end K2 of the reflector 510.

[0036] If the area between the lower end of the reflective portion 510 and the lower end K1 of the inner wall 515 is defined as a first boundary or the lower end of the curved surface, and the area between the upper end K2 of the curved surface of the reflective portion 510 and the lower end of the outer wall 520 is defined as a second boundary, the curved surface of the reflective portion 510 becomes higher in an area farther from the first boundary. The curved surface of the reflective portion 510 becomes higher as it is farther from the inner wall 515, and becomes wider as the distance from the inner wall 515 increases upward. An angle Q1 between a virtual line V1 passing through the lower end K1 of the curved surface and the upper end K2 of the curved surface and a line X1 extending horizontally from the first boundary may be 50 degrees or less, for example, 45 degrees or less, and an angle Q2 between the line V1 and the inner wall 515 may be 60 degrees or less, for example, in the range of 10 degrees to 60 degrees. The angle (Q1+Q2) between the line V1 and the inner wall 515 may be less than 90 degrees, and the inner wall 515 may be provided as an inclined surface. In the structure shown in FIG. 1, a first slope of the line V1 connecting both ends of the curved surface of the reflective unit 510 may be smaller than a second slope of the line V1 connecting both ends of the curved surface of the reflective unit 520 in the structure shown in FIG. 2. That is, the curved surface of the reflective unit 510 may have a height that gradually increases from one lower end of the emitting surface S1 to the other lower end thereof, and may have a height that gradually increases with distance from the emitting surface S1 based on the one and other lower ends of the emitting surface S1. Here, the one lower end of the emitting surface S1 may be a lower end portion of the curved surface adjacent to the first side surface Sa1, and the other lower end may be a lower end of the curved surface adjacent to the second side surface Sb1.

[0037] 4 to 7, the optical assembly 501 includes a housing 500 having a support portion 511 and a reflector 510. The support portion 511 of the housing 500 is disposed at the bottom of a receiving portion, and the reflector 510 has a recess R1 and is disposed at the bottom of the light-emitting side of the lighting module 200. The outer wall 520 is disposed around the upper portion of the housing 500 and can block light traveling to the upper portion of the reflector 510 and cover the outside of the lighting module 200. The housing 500 may include the support portion 511 having the receiving portion R1 in one region and the reflector 520 having a recess R2 in another region. The light-emitting surface S1 of the lighting module 200 may be exposed facing the recess R1. The opening OP1 of the light-blocking member 540 may overlap a portion of the recess R1.

[0038] A distance h2 between the curved upper end K2 of the reflective portion 510 and the transparent cover 530 may be equal to or smaller than the thickness of the lighting module 200. This allows the transparent cover 530 to push the lighting module 200 toward the support portion. The upper surface of the support portion 511 or the bottom of the receiving portion may be a horizontal plane. The upper surface of the support portion 511 and the lower surface of the lighting module 200 are parallel to each other. As another example, the lighting module 200 may have an inclined structure with a depth that decreases toward the light-emitting surface S1. The housing 500 may be made of a resin material, such as at least one of plastic, polypropylene (PP), polyethylene (PE), polycarbonate (PC), PBT (Polybutylene Terephthalate), ABS (Acrylonitrile Butadiene Styrene Copolymer), POM (Poly Oxy Methylene Polyacetal), PPO (Polyphenylene Oxide) resin, and modified PPO (Modified PPO) resin. 7, the bottom shape of the support part 511 may be the same as the bottom shape of the lighting module 200. The support part 511 is provided with a hole 519 into which a connector 590 is inserted. The connector 590 is electrically connected to the substrate 210 of the lighting module 200.

[0039] The light emitting surface S1 of the lighting module 200 may be disposed on the same vertical plane as the upper end K2 of the inner wall 515 or may protrude further. As another example, the upper end of the light emitting surface S1 may protrude more than the lower end, thereby improving light emission efficiency toward the reflector 510. The upper end K2 of the inner wall 515 may be disposed at the same level as or higher than the upper end K2 of the reflector 510, thereby reducing leakage or loss of light emitted through the light emitting surface S1. The transparent cover 530 extends from the top of the lighting module 200 to the top of the recess R1. The transparent cover 530 may be made of a transparent material, such as PC, OPS, PMMA, PVC, etc. The transparent cover 530 may allow the lighting module 200 to be tightly attached or pressed onto the support 511. A portion of the transparent cover 530 is disposed on a stepped portion 524 disposed on the outer wall 520 of the housing 500, and the stepped portion 524 is disposed around the upper portion of the recess R1. The upper surface of the stepped portion 524 is disposed on the same straight line as the upper surface of the lighting module 200, and the lower surface of the transparent cover 530 is supported on the upper surface of the lighting module 200. The lower surface of the lighting module 200 is adhered to the support 511 with an adhesive layer, which may be a transparent material such as a UV adhesive, silicone, or epoxy. The upward movement of the lighting module 200 is blocked by the transparent cover 530, and the horizontal movement is blocked by adhesive or other mechanisms. A portion of the transparent cover 530 may have a protrusion 533 that is engaged with a groove 525 on the outer wall 521 on the receiving portion R2 side, but is not limited thereto.

[0040] The transparent cover 530 is disposed on a plane perpendicular to the light exit surface S1 of the lighting module 200, so that when the surface light emitted through the light exit surface S1 of the lighting module 200 enters, it can be diffused or refracted in another direction.

[0041] The transparent cover 530 may have a light-blocking coating layer disposed on its upper and / or lower surfaces, or may transmit light through an open area OP2 corresponding to the upper portion of the recess R1. When a light-blocking member 540 is disposed on the transparent cover 530 as shown in FIG. 5, the transparent cover 530 may be made of a light-transmitting or light-diffusing material. The transparent cover 530 may have a rough surface to prevent hot spots from being visible from the outside. As shown in FIGS. 6 and 7, the light-blocking member 540 transmits light emitted through the transparent cover 530 through openings OP1, and the light emitted through the openings OP1 may function as an indicator. At least one or more indicators may be disposed, and if multiple indicators are disposed, they may be the same or different. The indicator may be at least one of a logo, an icon, a symbol, or a mark shape for identification. The indicator will be described in detail with reference to FIG. 15 below.

[0042] 4 and 8, the lighting module 200 may have different lengths D2 and D3 in a light-emitting direction (e.g., X). The lengths D2 and D3 may be smaller than the length D1 of the transparent cover 530, and the minimum length D3 in one direction (e.g., X) is the length of the second side surface Sb1 and may be 50% or less of the maximum length D1 of the transparent cover 530. The maximum length D2 in one direction (e.g., X) may exceed 50% of the maximum length D1 of the transparent cover 530. The maximum length direction of the transparent cover 530 may be the same as the optical axis direction in which the central luminous intensity of the light emitted from the light emitting device 100 is highest.

[0043] The lengths D2 and D3 of the lighting module 200 in one direction may be longest on the driver's side and shortest on the object side. Thus, the light exit surface S1 of the lighting module 200 is disposed so as to be inclined at a predetermined angle Q3 from a region adjacent to the first side surface Sa1 to a region adjacent to the second side surface Sb1. The angle Q3 is the angle between a horizontal virtual line and an extension line Lb of the inclined light exit surface S1, and may be less than 60 degrees, for example, in the range of 10 to 60 degrees or 20 to 50 degrees. If the angle Q3 is greater than this range, the area of ​​the recess R1 may be reduced, and if the angle Q3 is less than this range, a difference in the amount of reflected light may occur. Here, the first region Ra at the bottom of the reflecting portion 510 may be surface-treated to reflect incident light vertically, as shown in FIG. 12(A), and the second region Rb may be surface-treated to reflect incident light in a set region, as shown in FIG. 12(B). For example, the first region Ra vertically overlapping the opening OP1 may reflect light vertically upward. In addition, the second region Rb, which does not overlap or partially overlaps the opening OP1 in the vertical direction, can reflect light toward the opening OP1 or toward the driver. This can prevent a reduction in brightness of the light emitted through the opening OP1 and adjust the brightness so that light with a higher value is provided toward the driver. Therefore, the driver can more effectively view the indicator.

[0044] Furthermore, the light emitting device 100 is tilted at a predetermined angle Q5 based on an imaginary line extended to the rear surface, and the tilt angle Q5 may be 60 degrees or less, for example, 10 to 60 degrees or 20 to 50 degrees. The light emitted from the tilted light emitting device 100 is emitted with the highest luminous intensity toward the second region Rb, and the light reflected by the second region Rb of the reflector 510 appears with the highest luminance value in the direction of the driver.

[0045] 9, the light emitting element 100 is tilted and disposed on the substrate of the lighting module 200, and the directivity angle R10 emitted from the tilted light emitting element 100 may be 100 degrees or more, for example, in the range of 105 degrees to 140 degrees. In this case, other components 105 disposed on the substrate 210 are disposed in an area outside the directivity angle R10. That is, in consideration of the directional characteristics of the light emitting element, the components 105 are disposed in an area that does not interfere with the light emitted from the light emitting element. This is because the lower surface of the substrate 210 is disposed in close contact with the support portion 511 of the housing 500, so components cannot be installed on the lower surface of the substrate, and the components 105 can be disposed on the upper surface of the substrate 210 in an area outside the light directivity angle R10.

[0046] 10, a transparent cover 530 is disposed on the upper part of the housing 500. The transparent cover 530 may be disposed with a long length from the first outer surface S21 to the second outer surface S22. The maximum length X0 of the housing 500 may be 1.2 cm or more, for example, in the range of 1.2 cm to 1.7 cm, and the maximum width Y0 of the housing 500 may be 0.8 cm or more, for example, between 0.8 cm and 1.5 cm, but the size of the housing 500 is not limited thereto. The size of the housing 500 may be varied depending on the space in which it is installed and the object to be illuminated.

[0047] 13, a light blocking member 540 is disposed on the transparent cover 530 and the upper surface of the housing 500. The light blocking member 540 may be adhered to the upper surface of the housing 500 of the optical assembly 501 or to the rearview mirror. The indicator is formed in at least one area of ​​the rearview mirror and the light blocking member 540.

[0048] 14 to 16, the optical assembly 501 is coupled to a storage space 560 of a back plate 690 disposed on the rear surface of the rearview mirror. Here, the rearview mirror may be a right-side mirror relative to the driver, and the optical assembly 501 may be disposed outside the center of the back plate 690 to detect and warn of external objects.

[0049] An assembly of left and right rearview mirrors 601, 603 of a moving object, for example, a vehicle, may include the above-described optical assemblies 501, 503. The rearview mirror assemblies 601, 603 are symmetrical to each other with the same shape, so an example in which the optical assembly is applied to the right rearview mirror assembly has been described.

[0050] 15 , indicators SM1 are exposed through the rearview mirror on the left and right sides of an imaginary line PC on which the driver is positioned, or are displayed through the indicators SM1 when the lighting module 200 is driven. The indicators SM1 are formed in at least one of a logo, an icon, a symbol, and a mark shape for identification, and are formed on at least one region of the rearview mirrors 601 and 603 and the light blocking member 540. For example, the indicators SM1 are formed on the rearview mirrors 601 and 603 and arranged in a region of the rearview mirrors 601 and 603 that overlaps with the opening OP1 of the light blocking member 540. Alternatively, the indicators SM1 may be formed on the light blocking member 540 and arranged in the opening OP1 of the light blocking member 540. The indicators SM1 may vertically overlap the first region Ra of the reflector 510. Also, the indicators SM1 may not vertically overlap or may partially overlap the second region Rb of the reflector 510. One or more indicators SM1 may be provided. For example, if multiple indicators are provided, the first indicator may be disposed on the driver's side (in a designated area A1) and may have a larger area than the second indicator. The second indicator may be disposed facing the outer or object-side areas A2 and A3 of the first indicator, or may be disposed below the outer side. That is, light emitted from the lighting module 200 may be reflected by the reflector 510, which has an aspherical shape, and pass through the opening OP1 of the light-blocking member 540. In this process, the light emitted from the lighting module 200 is provided as a surface light source and may pass through the indicator SM1 formed on the rearview mirror and / or the light-blocking member 540, making the indicator SM1 visible from the outside. As a result, the rearview mirror assembly can effectively provide information about external objects to the user. In addition, the light emitted from the lighting module 200 can be provided in various forms such as a continuous alarm through the indicator SM1, a flashing alarm, or a gradually increasing or decreasing brightness value.

[0051] 15 to 17, the left and right rearview mirrors 601 and 603 of a moving object, e.g., a vehicle 801, can include the optical assemblies 501 and 503 described above. The assemblies including the rearview mirrors 601 and 603 are identical in shape and symmetrical to each other, and for convenience of explanation, an example in which they are applied to a right rearview mirror has been described. For example, when another moving object 803 or object is located on the left or right side of the vehicle 801 relative to the driver or vehicle, light emitted from the lighting modules 200 of the optical assemblies 501 and 503 is emitted to the outside through the rearview mirror via an indicator. Therefore, the light emitted through the left and right rearview mirror assemblies is emitted in a set direction, e.g., toward the driver, and can have different brightness values ​​depending on the emission direction.

[0052] Specifically, when there is a virtual horizontal line Ph passing through the rearview mirror 601 (603) located on the left or right, and lines Pc1 and Pc2 perpendicular to the horizontal line Ph, the luminance value of a first region A1 (e.g., a set region A1) located inward of the lines Pc1 and Pc2 may be different from the luminance values ​​of a second region A2 and a third region A3 (e.g., object-side regions A2 and A3) located outward. Specifically, the first region A1 may have a higher luminance value than the second region A2 and the third region A3. That is, in this embodiment, the surface of the reflecting unit 510 is formed aspherical, thereby enabling the luminance value to be controlled according to the light emission direction. For example, the luminance values ​​of light emitted to the first region A1, the second region A2, and the third region A3 can be controlled. Furthermore, the luminance values ​​of the first to third regions A1, A2, and A3 can also be controlled according to the emission direction. In addition, since the surface of the reflecting portion 510 is formed aspherical, each light passing through the opening OP1 and emitted toward the first to third regions A1, A2, and A3 can have uniform brightness. Therefore, the embodiment can minimize light loss and control brightness values ​​according to the emission direction, thereby effectively providing light with relatively high brightness to the driver of the vehicle and providing light with relatively low brightness to other vehicles located behind the vehicle.

[0053] 18 and 19 are front and side views showing a light emitting device on a substrate in a lighting module 200. Referring to FIGS. 18 and 19, the light emitting device 100 includes a body 10 having a cavity 20, a plurality of lead frames 30 and 40 in the cavity 20, and a light emitting chip 71 disposed on at least one of the plurality of lead frames 30 and 40. The light emitting device 100 may be implemented as a side-emitting package. The body 10 may include a cavity 20 with the lead frames 30 and 40 exposed at the bottom. The plurality of lead frames 30 and 40 may be separated into, for example, a first lead frame 30 and a second lead frame 40, which are coupled to the body 10. The body 10 may be made of an insulating material. The body 10 may be made of a reflective material. The body 10 may be made of a material having a reflectance higher than a transmittance for the wavelength emitted from the light emitting chip, for example, a material having a reflectance of 70% or more. The body 10 may be defined as a non-transparent or reflective material if its reflectance is 70% or more. The body 10 may be made of a resin-based insulating material, such as a resin material such as polyphthalamide (PPA). The body 10 may be made of a thermosetting resin or a highly heat-resistant and light-resistant material, including silicone-based, epoxy-based, or plastic materials. The body 10 may include a reflective material, such as a resin material containing a metal oxide, and the metal oxide may include at least one of TiO2, SiO2, and Al2O3. Such a body 10 can effectively reflect incident light. As another example, the body 10 may be made of a translucent resin material or a resin material containing a phosphor that converts the wavelength of incident light. The bottom of the body 10 may be a side surface corresponding to the substrate 210. The first lead frame 30 includes a first lead portion 31 disposed at the bottom of the cavity 20, a first bonding portion 32 extending to the outside of the body 10, and a first heat dissipation portion 33. The first bonding portion 32 is bent from the first lead portion 31 within the body 10 to protrude to the outside of the body, and the first heat dissipation portion 33 is bent from the first bonding portion 32 .The second lead frame 40 includes a second lead portion 41 disposed at the bottom of the cavity 20, a second bonding portion 42 disposed in an outer region of the body 10, and a second heat dissipation portion 43. The second bonding portion 42 is bent from the second lead portion 41 within the body 10, and the second heat dissipation portion 43 is bent from the second bonding portion 42. The light emitting chip 71 is disposed on the first lead portion 31 of the first lead frame 30, for example, and connected to the first and second lead portions 31 and 41 by wires, or connected to the first lead portion 31 by adhesive and to the second lead portion 41 by wires. The light emitting chip 71 may be a horizontal chip, a vertical chip, or a chip with a via structure. The light emitting chip 71 may be mounted using a flip chip method. The light emitting chip 71 can selectively emit light within a wavelength range from ultraviolet to visible light. The light emitting chip 71 can emit light with, for example, ultraviolet or blue peak wavelengths. The light emitting chip 71 may include at least one of a II-VI compound and a III-V compound. The light emitting chip 71 may be made of a compound selected from the group consisting of GaN, AlGaN, InGaN, AlInGaN, GaP, AlN, GaAs, AlGaAs, InP, and mixtures thereof. One or more light emitting chips 71 may be disposed in the cavity 20, and emit light with the highest intensity in the direction of the central axis Y0. One or more light emitting chips may be disposed in the cavity 20 of the light emitting device 100 according to the embodiment. The light emitting chip may be selected from, for example, a red LED chip, a blue LED chip, a green LED chip, and a yellow-green LED chip.

[0054] A molding member 80 is disposed in the cavity 20 of the body 10. The molding member 80 may be formed of a single layer or multiple layers and may include a translucent resin such as silicone or epoxy. A phosphor for changing the wavelength of light emitted may be disposed on the molding member 80 or the light emitting chip 71. The phosphor excites a portion of the light emitted from the light emitting chip 71 to emit light of a different wavelength. The phosphor may be formed of a quantum dot, YAG, TAG, silicate, nitride, or oxynitride-based material. The phosphor may include, but is not limited to, at least one of a red phosphor, a yellow phosphor, and a green phosphor. The light emitting surface S2 of the molding member 80 may have, but is not limited to, a flat, concave, or convex shape. As another example, a translucent film having a phosphor may be disposed on the cavity 20, but is not limited to this. A lens is further formed on the upper portion of the body 10. The lens may have a concave or / and convex lens structure to adjust the light distribution of the light emitted from the light emitting device 100. Semiconductor devices such as a light receiving device and a protection device are mounted on the body 10 or one of the lead frames. The protection device may be implemented as a thyristor, Zener diode, or TVS (Transient Voltage Suppression), and the Zener diode protects the light emitting chip from ESD (Electro Static Discharge). At least one light emitting device 100 is disposed on the substrate 210, and a second reflective member 230 is disposed around the lower periphery of the light emitting device 100. First and second lead portions 33 and 43 of the light emitting device 100 are bonded to pads 213 and 215 of the substrate 210 using conductive adhesive members 217 and 219, which are solder or conductive tape.

[0055] The optical assembly according to the embodiments of the present invention can be applied to a vehicle lamp or a vehicle lamp. The optical assembly can be applied to an interior or exterior lamp of a vehicle. Examples of the lamp include headlamps, sidelights, side mirror lights, fog lamps, tail lamps, brake lights, daytime running lights, vehicle interior lights, door scuffs, rear combination lamps, backup lamps, and warning devices. The features, structures, and effects described in the above embodiments are included in at least one embodiment of the present invention and are not necessarily limited to one embodiment. Furthermore, the features, structures, and effects exemplified in each embodiment can be combined or modified with other embodiments by a person skilled in the art to which the embodiments pertain. Therefore, such combinations and modifications should be construed as being within the scope of the present invention.

Claims

1. a substrate; a resin layer disposed on the substrate; and a lighting module having a light emitting element inside the resin layer and an emission surface on one side for emitting light; a recess at a lower portion of the light output side of the lighting module; and a reflecting portion having an aspherical curved surface at a bottom of the recess; a transparent cover over the recess; the resin layer seals the light-emitting element; the lighting module has a thickness direction from the substrate toward the resin layer and a length direction perpendicular to the thickness direction, In the longitudinal direction, the length of the light emitting surface of the lighting module is greater than the length of the surface of the lighting module opposite to the light emitting surface; An optical assembly, wherein a line extending along a length of an exit surface of the lighting module is inclined relative to a line extending along a length of a surface opposite the exit surface.

2. a support having a storage portion in which the lighting module is disposed; an inner wall extending from the support portion to a lower end of the reflector; an outer wall disposed around an upper portion of the reflector and the support; The optical assembly of claim 1 , wherein the curved surface of the reflecting portion has a depth that gradually increases toward a lower end of the light exit surface.

3. The optical assembly of claim 2 , wherein the curved surface of the reflecting portion has a height that gradually increases from one lower end of the light exit surface to the other lower end of the light exit surface.

4. The lighting module comprises: a substrate on which the light-emitting element is arranged; a first reflecting member on the resin layer; a second reflecting member between the resin layer and the substrate, The optical assembly according to claim 2 or 3, wherein the light exit surface is arranged parallel to a light emitting surface arranged on one side of the light emitting element.

5. the height of the light emitting surface of the lighting module is the same as the thickness of the resin layer; The thickness of the resin layer is 4 mm or less, The optical assembly of claim 4 , wherein the upper surface of the support is flat.

6. a step portion disposed around an upper portion of the recess; an upper end of the curved surface of the reflecting portion is disposed at the same level as or lower than a straight line extending horizontally from a lower surface of the lighting module; A periphery of a part of the transparent cover is disposed on the step portion, The optical assembly of claim 4 or 5, wherein the lower surface of the transparent cover is supported on an upper surface of the lighting module.

7. an angle between a line extending along a length direction of the light-emitting surface of the lighting module and a line extending along a length direction of the opposite surface of the lighting module is in a range of 10 degrees to 60 degrees; the lighting module includes a first side and a second side disposed opposite each other; the first side surface and the second side surface extend from both ends of the light exit surface, The optical assembly of claim 4 , wherein the length of the first side is greater than the length of the second side.

8. a housing having the reflector, the support, the inner wall, and the outer wall; The optical assembly according to claim 4 , further comprising a reflective layer made of a metallic material disposed on the reflective portion.

9. a light-blocking member disposed on an upper surface of the housing and the transparent cover, the light-blocking member having an opening that vertically overlaps a portion of the recess; The optical assembly of claim 8 , wherein the vertical direction is a direction from a top surface of the lighting module to a bottom surface of the lighting module.

10. a housing including a support portion having a storage portion in one region and a reflector portion having a concave recess in another region; a lighting module disposed in the storage portion and having an exposed light exit surface facing the recess; a transparent cover disposed over the storage portion and the recess; a light-blocking member disposed on the upper surface of the housing and on the transparent cover, the light-blocking member having an opening in a region overlapping with the recess; a bottom of the recess has a curved surface that is gradually deepened toward a lower end of one side of the light exit surface; the lighting module includes a substrate, a light-emitting element on the substrate, and a resin layer covering the light-emitting element; Emitting surface light onto the light exit surface; the surface light is reflected by the reflecting portion and emitted through the opening, the lighting module has a thickness direction from the substrate toward the resin layer and a length direction perpendicular to the thickness direction, In the longitudinal direction, the length of the light emitting surface of the lighting module is greater than the length of the surface of the lighting module opposite to the light emitting surface; the height of the light emitting surface of the lighting module is the same as the thickness of the resin layer; A rearview mirror assembly, wherein a line extending along a length direction of an exit surface of the lighting module is inclined with respect to a line extending along a length direction of a surface opposite to the exit surface.

11. a bottom of the recess having an aspherical curved surface and positioned below a lower surface of the lighting module; 11. The rearview mirror assembly of claim 10, further comprising a backplate containing the housing and a rearview mirror.

12. 12. The rearview mirror assembly of claim 11, including at least one indicator formed on an area of ​​at least one of the rearview mirror and the light blocking member.

Images