Optical assembly and rearview mirror assembly having the same

Abstract

An optical assembly disclosed as an embodiment of the present application includes: an illumination module having a resin layer, a light emitting element located in the resin layer, and an exit surface that emits surface light toward one side; a reflection portion having a recess on a lower portion of the exit side of the illumination module, and a curved surface of an aspheric surface on a bottom portion of the recess; and a transparent cover located on the recess. The optical assembly is capable of reflecting surface light to a set region.

Description

TECHNICAL FIELD

[0001] One embodiment of the present invention relates to an optical assembly for emitting a surface light.

[0002] One embodiment of the present invention relates to an optical assembly that generates and reflects a surface light to be emitted by a mirror of a moving object, and a rearview mirror assembly having the same. BACKGROUND

[0003] Lighting applications include vehicle lamps and backlights for displays and signs. Light emitting devices (e.g., light emitting diodes (LEDs)) have advantages such as low power consumption, semi-permanent life, fast response speed, safety, and environmental friendliness compared to conventional light sources such as fluorescent lamps and incandescent lamps. These light emitting diodes are applied to various display devices, various lighting devices such as indoor or outdoor lamps. Recently, as a light source for vehicles, a lamp employing light emitting diodes has been proposed. Light emitting diodes have an advantage of low power consumption compared to incandescent lamps. However, since the directivity angle of light emitted from a light emitting diode is small, when a light emitting diode is used as a vehicle lamp, it is necessary to increase the light emitting area of a lamp using a light emitting diode. Since a light emitting diode is small, design freedom of a lamp can be increased, and since it has a semi-permanent life, it is economical.

[0004] For example, light emitting diodes can be applied to a blind spot detection (BSD) system. The blind spot detection system is a system that detects other vehicles located behind and to the side of a driver using sensors of a vehicle and provides information about the same to the driver through vision, hearing, touch, etc. In such a blind spot detection system, a light emitting diode can be disposed in a side mirror, a rearview mirror, or an A-pillar region of a vehicle to visually provide rearview information to a driver.

[0005] However, since light is emitted in various directions from a light emitting diode, there is a problem in that visual information cannot be effectively provided to a driver. In addition, there is also a problem in that light emitted from a light emitting diode can be emitted in the direction of a driver of another vehicle, thereby obstructing the field of view and causing an accident. Recently, research has been conducted on a rearview mirror of a moving object or a vehicle using a light source together with a mirror. SUMMARY

[0006] TECHNICAL PROBLEM

[0007] Embodiments of the present application can provide an optical assembly having a light source module emitting a surface light and a non-spherical reflecting surface reflecting the surface light to a set direction. Embodiments of the present application can provide an optical assembly having a non-spherical reflecting surface reflecting a surface light to a set direction to a portion of a housing accommodating a light source module emitting the surface light. Embodiments of the present application can provide an optical assembly and a rearview mirror assembly reflecting a surface light emitted transversely to a direction set by a non-spherical reflecting portion disposed on a concave bottom of a housing. Embodiments of the present application can provide an optical assembly and a rearview mirror assembly capable of illuminating a surface light reflected within a housing by an indicator. An embodiment of the present application can provide a rearview mirror assembly having an optical assembly or a side mirror of a moving object.

[0008] Technical Solution

[0009] An optical assembly according to an embodiment of the present application includes: an illumination module having a resin layer and a light emitting device inside the resin layer, and having an exit surface for emitting light to one side; a reflecting portion having a concave portion at a lower portion of the exit side of the illumination module, and having a curved surface of a non-spherical surface at a bottom of the concave portion; and a transparent cover on the concave portion.

[0010] According to an embodiment of the present application, an optical assembly includes a support portion having a receiving portion in which an illumination module is disposed, an inner side wall extending from the support portion to a lower end of a reflecting portion, and an outer side wall disposed to surround the reflecting portion and an upper portion of the support portion, wherein a curved surface of the reflecting portion can have a gradually deepening depth as the lower end of a side close to an exit surface. The curved surface of the reflecting portion can have a gradually increasing height from the lower end of the side of the exit surface to the lower end of the other side of the exit surface. According to an embodiment of the present application, the illumination module includes a substrate on which a light emitting device is disposed, a first reflecting member on a resin layer, and a second reflecting member between the resin layer and the substrate, wherein the resin layer can seal the light emitting device, and the exit surface can be disposed to be parallel to a light emitting surface of a side of the light emitting device. According to an embodiment of the present application, a height of the exit surface of the illumination module can be the same as a thickness of the resin layer, the thickness of the resin layer can be 4 mm or less, and an upper surface of the support portion can be flat. An upper end of the curved surface in the reflecting portion can be disposed to be equal to or lower than a straight line extending horizontally with respect to a lower surface of the illumination module, a periphery of the transparent cover can be disposed in a stepped portion disposed on the outer side wall. A length of a first side surface adjacent to a side of the resin layer can be longer than a length of a second side surface opposite to the first side surface. According to an embodiment of the present application, a housing can include the reflecting portion, the support portion, the inner side wall, and the outer side wall, and a reflecting layer of a metal material can be formed on the reflecting portion. According to an embodiment of the present application, a light blocking member is disposed on an upper surface of the housing and the transparent cover and has an opening portion overlapping the recess.

[0011] A rearview mirror assembly according to an embodiment of the present application includes a housing including a support portion having a receiving portion in one area and a reflecting portion having a recess in another area, an illumination module disposed in the receiving portion and having an exit surface exposed toward the recess, a transparent cover disposed on the receiving portion and the recess, and a light blocking member disposed on an upper surface of the housing and the transparent cover and having an opening portion in a partial area overlapping the recess, wherein a bottom of the recess has a curved surface having a deeper depth toward a lower end of a side of the exit surface, wherein the illumination module includes a substrate, a light emitting device on the substrate, and a resin layer covering the light emitting device, and emits a surface light toward the exit surface, and can emit the surface light reflected by the reflecting portion and passing through the opening portion.

[0012] According to an embodiment of the present application, a back plate and a rearview mirror can have a housing accommodated therein. Further, it can include at least one indicator formed on at least one area of the rearview mirror and the light blocking member.

[0013] Advantageous Effects

[0014] According to embodiments of the present application, the optical assembly can emit a surface light, and can have improved luminous intensity and improved light uniformity. In addition, the optical assembly can suppress formation of hot spots in an illumination area and minimize loss of light.

[0015] According to embodiments of the present application, a linear surface light provided in a horizontal direction can be concentrated in a direction set by the aspheric reflector, so that a luminance value of light provided in the set direction can be controlled. According to embodiments of the present application, the optical assembly can maximize light emitted from the rearview mirror while minimizing loss of light, and can adjust a luminance value of light according to a set direction. Accordingly, the rearview mirror can provide a relatively high luminance of light to a driver of a moving object, and can provide a relatively low luminance of light to another moving object located at a rear side of the moving object. Accordingly, interference of light emitted from the reflector with a driver of a moving object located at a rear side can be prevented or minimized. The optical assembly according to embodiments of the present application and the rearview mirror assembly having the same can improve reliability of a warning device. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a side cross-sectional view conceptually illustrating an optical assembly according to embodiments of the present application.

[0017] Figure 2 is a view illustrating a rear view mirror according to embodiments of the present application. Figure 1 is a view illustrating an optical assembly according to embodiments of the present application.

[0018] Figure 3 is a side cross-sectional view illustrating an example of an illumination module of the optical assembly according to embodiments of the present application. Figure 1

[0019] is a view illustrating a housing, an illumination module, and a transparent cover of the optical assembly according to embodiments of the present application. Figure 4

[0020] is a view illustrating an example in which a light-blocking member having an opening portion is laminated in the optical assembly according to embodiments of the present application. Figure 5 Figure 4 is an example of a front view of the optical assembly according to embodiments of the present application.

[0021] Figure 6 Figure 5 is an example of an exploded perspective view of the optical assembly according to embodiments of the present application.

[0022] Figure 7 is a perspective view in which the illumination module is combined with the housing in the optical assembly according to embodiments of the present application. Figure 6

[0023] Figure 8 is a view illustrating a rear view mirror according to embodiments of the present application. Figure 6

[0024] is a view illustrating a rear view mirror according to embodiments of the present application. Figure 9 Figure 4 ​​​​Perspective view of a substrate on which a light emitting device and components are mounted in the illumination module of FIG.

[0025] Figure 10 is Figure 7 Perspective view of a transparent cover combined with a housing in the illumination module of FIG.

[0026] Figure 11 is Figure 6 Example of a cross-sectional view taken along a B-B side of the optical assembly of FIG.

[0027] Figure 12 (A) and Figure 12 (B) of FIG. are diagrams showing a reflection path in a recessed reflection portion of a housing of the optical assembly of FIG. Figure 8

[0028] Figure 13 is Figure 6 Partial side cross-sectional view of the optical assembly of FIG.

[0029] Figure 14 is Figure 6 or Figure 10 Front view of a back plate in an assembly of a rearview mirror combined with the optical assembly of FIG.

[0030] Figure 15 is an example of a left / right rearview mirror disposed on a moving object according to an embodiment of the present invention.

[0031] Figure 16 is a diagram for explaining intensity of a brightness value of a left / right rearview mirror disposed on a moving object according to an embodiment of the present invention.

[0032] Figure 17 is a diagram for explaining an alarm generated by a left / right rearview mirror according to movement of a moving object according to an embodiment of the present invention.

[0033] Figure 18 is an example of a front view of a light emitting device of an illumination module according to an embodiment of the present invention.

[0034] Figure 19 is a perspective view of a light emitting device of FIG. Figure 18 DETAILED DESCRIPTION

[0035] ​​Hereinafter, preferred embodiments, which can be easily carried out by one of ordinary skill in the art, will be described in detail with reference to the accompanying drawings. It should be understood, however, that the embodiments described in this specification and the configurations shown in the drawings are merely preferred embodiments of the present application and various equivalents and modifications can be made thereto in application. In a detailed description of the working principle of the preferred embodiments of the present application, detailed descriptions of relevant known functions or configurations will be omitted when it is determined that detailed descriptions thereof can unnecessarily obscure the gist of the present application. The terms described later are terms defined in consideration of the functions of the present application, and the meanings of the respective terms should be understood based on the entirety of the specification. In the entire drawings, the same reference numerals are used for parts having similar functions. The technical spirit of the present application is not limited to certain embodiments to be described, but can be implemented in various forms, and one or more components can be selectively combined or substituted in use within the scope of the technical spirit of the present application. In addition, unless explicitly defined and described, the terms used in the embodiments of the present application, including technical terms and scientific terms, can be interpreted as meanings that can be commonly understood by one of ordinary skill in the art to which the present application pertains, and commonly used terms (for example, terms defined in a dictionary) can be interpreted in the meanings in the context of the prior art. Furthermore, the terms used in the embodiments of the present application are used to describe the embodiments, and are not intended to limit the present application. In this specification, the singular form can include the plural form unless specifically stated in the context of the wording, and when described as "at least one of (or more than one of) A, B, and C," it can include one or more of all combinations of A, B, and C that can be combined. In describing components of the embodiments of the present application, terms such as first, second, A, B, (a), and (b) can be used. These terms are merely intended to distinguish a component from other components, and cannot determine the properties, order, or processes of the respective constituent elements. Also, when one component is described as being "connected," "coupled," or "joined" to another component, the description can include not only that the component is directly connected, coupled, or joined to the other component, but also that other components are "connected," "coupled," or "joined" between the component and the other component. In addition, in the case of being described as being "above (upper)" or "below (lower)" each component, the description can include not only the case where two components are in direct contact with each other, but also the case where one or more other components are formed or disposed between the two components. In addition, when expressed as "above (upper)" or "below (lower)," it can refer to a downward direction and an upward direction with respect to one element.

[0036] The lighting module or optical assembly according to the present application can be applied to various lamp devices requiring illumination, for example, a vehicle lamp, a household lighting device, or an industrial lighting device. For example, when applied to a vehicle lamp, it can be applied to a headlamp, a side lamp, a rearview mirror, a fog lamp, a tail lamp, a brake lamp, a daytime running lamp, an interior lamp, a door scuff, a rear combination lamp, a reverse lamp, etc. The lighting module or optical assembly of the present application can be applied to indoor and outdoor advertising devices, display devices, and various electric vehicles, in addition, it can also be applied to all illumination-related fields or advertising-related fields currently developed and commercialized or likely to be realized according to future technological development.

[0037] <OPTICAL ASSEMBLY>

[0038] Figure 1 and Figure 2 is a side sectional view and a view observed from a B-B side of an optical assembly according to an embodiment of the present application, Figure 3 is a side sectional view of an example of a lighting module of the optical assembly of Figure 1 Figure 4 is a view showing a housing, a lighting module, and a transparent cover of the optical assembly according to an embodiment of the present application, Figure 5 is an example of a light blocking member having an opening portion stacked in the optical assembly of Figure 4 Figure 6 is an example of a front view of the optical assembly of Figure 5 Figure 7 is an example of an exploded perspective view of the optical assembly of Figure 6 Figure 8 is a perspective view of the lighting module combined with the housing in the optical assembly of Figure 6 Figure 9 is a perspective view of a substrate on which a light emitting device and components are mounted in the lighting module of Figure 4 Figure 10 is a perspective view of the transparent cover combined with the housing in Figure 7 Figure 11 is an example of a sectional view taken along a B-B side of the optical assembly of Figure 6 (A) of Figure 12 (B) of Figure 12 is a view showing a reflection path in a recessed reflection portion of the housing of the optical assembly of Figure 8 Figure 13 is a partial side sectional view of the optical assembly of Figure 6

[0039] Referring to Figure 1 and 2 ​​​​​​​​​The optical assembly 501 is combined with side mirrors or rearview mirrors combined to left and right sides of a moving object, and can notify a driver of a moving object (e.g., a vehicle) and visual information about an alarm about whether the object is located at a side or a rear side together with the identification information of an indicator or an icon. Here, the object can be a moving body or a floating body. The side mirrors or the rearview mirrors can be rotated, housed, or protruded from left and right sides of the moving object.

[0040] The optical assembly 501 can include the illumination module 200, a first housing portion R2 in which the illumination module 200 is housed, and a reflection portion 510 having a recess R1 for reflecting a surface light emitted from the illumination module 200. A transparent cover 530 for transmitting light can be provided on the illumination module 200 and / or the reflection portion 510. A light-shielding member 540 having an opening portion OP1 can be provided on the transparent cover 530. The illumination module 200 generates and emits surface light, and the emitted surface light can be reflected to a set region A1 or a spotlight region by the reflection portion 510. Here, the set region A1 or the spotlight region can be a driver direction of the moving object. The illumination module 200 has a light emitting device 100 and diffuses light generated from the light emitting device 100 to emit the light as surface light. In this case, a width or a height of an exit surface S1 emitted by the surface light can be 4 mm or less, i.e., a line width of 4 mm or less. Accordingly, the surface light can be provided in the form of a linear surface light having a width of the exit surface S1. In Figure 2 In the middle, a length Y1 of the exit surface S1 of the illumination module 200 is the largest, and can be greater than a length of the opposite side.

[0041] As shown in Figure 1 The recess R1 of the reflection portion 510 can have a deeper depth as it approaches the exit surface S1 of the illumination module 200, and a smaller depth as it moves away from the illumination module 200. A surface 512 of the reflection portion 510 or a bottom surface of the recess R1 can include a curved surface. The surface 512 of the reflection portion 510 or the bottom surface of the recess R1 can have an aspheric surface or a free-form surface shape. The curved surface of the reflection portion 510 can be disposed in an area lower than a horizontal extension line of a support portion 511 in which the illumination module 200 is disposed, and can reflect incident light in the direction of the transparent cover 530.

[0042] Figure 2 is from the opposite side of the Figure 1A B-B side view of the illumination module 200 of FIG. 1, as viewed from the inner side wall 515 adjacent to the exit surface S1, can have a lowest lower end K11 on one side and can gradually increase or extend in a curved shape toward another side K12. The inner side wall 515 can be provided with a depth that gradually deepens from the other side K12 to the lower end K11 along the lower end of the inner side wall 515, so that a reflection angle on the curved surface of the reflection part 510 extending to the lower end of the inner side wall 515 can be adjusted. Here, the deepest lower point K1 of the recess R1 can be the lowest point of the recess R1 with respect to the optical axis of the light emitting device 100. That is, the curved surface of the reflection part 510 has a lower end K11 adjacent to one end of the exit surface S1 of the illumination module 200 based on the lower point K1, and can be provided as a curved surface extending to another upper end K12 adjacent to the other end of the exit surface S1.

[0043] The surface light reflected by the reflection part 510 can be transmitted through the transparent cover 530. Since the reflection part 510 has an aspherical surface, the optical assembly 501 can ensure uniformity of light in the set area A1 and provide a required brightness (e.g., 6000 nits) or more. Here, the reflection part 510 can include a material having a reflectance of 50% or more, and with respect to the reflection characteristics, can be irradiated with optical characteristics of a Gaussian type or a mirror reflection type. The light shielding member 540 can include an opening OP1 that partially transmits light. The light shielding member 540 can be attached to the transparent cover 530 or to the rear surface of the rearview mirror. The light shielding member 540 can be a part of the optical assembly 501 or a part of the rearview mirror assembly, but is not limited thereto.

[0044] The light shielding member 540 can include at least one of an adhesive resin, a photoinitiator, a black pigment, and a solvent. For example, the adhesive resin can include an epoxy resin, an acrylic resin, a polyimide resin, a panel resin, a silicone resin, or a cardo-based resin material. The light shielding member 540 can be made of a black material based on a resin or an epoxy resin, and can include a light blocking, reflecting, or absorbing additive therein. The light shielding member 540 can include a high-refractive inorganic spray, for example, which can include one or more selected from TiO2 sol, SrTiO3 sol, ZnS, ZnSe, potassium bromide, AgCl, MgO, cesium iodide, cesium bromide, CaCO3, phosphorus tribromide, benzene trichloride, trichroman-4-one, thionyl bromide, ZnO2, CeO2, ITO sol, Ta2O5, Ti2O5, Ti2O3, ZrO2, Br2, CS2, ZrO2-TiO2-based sol, and SiO2-Fe2O3-based compounds. The light shielding member 540 can include a light-absorbing material or a heat-absorbing or heat-dissipating material.

[0045] The lighting module 200 is disposed on the support portion 511, and the support portion 511 may be flat or planar. The lighting module 200 has a light-emitting device 100 therein, and light emitted from the light-emitting device 100 is emitted as surface light through the exit surface S1. The thickness of the lighting module 200 is the maximum distance from the lower surface to the upper surface, and can be set in the range of less than 5 mm, for example, 3 mm to 5 mm.

[0046] like Figure 1 and Figure 3 As shown, the lighting module 200 may include a substrate 210, at least one light-emitting device 100 located 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 reflective member 240 on the upper surface of the resin layer 220 and / or a second reflective member 230 between the substrate 210 and the resin layer 220. The second reflective member 230 may be disposed on the substrate 210 and may be disposed below the resin layer 220. The first reflective member 240 and the second reflective member 230 may reflect incident light in the direction of the emission surface S1.

[0047] Substrate 210 includes a printed circuit board (PCB), such as a resin-based PCB, a metal-core PCB, a flexible PCB, a ceramic PCB, or an FR-4 substrate. Substrate 210 can be a flexible or non-flexible substrate. Circuit patterns can be disposed on substrate 210. The circuit patterns of substrate 210 may include multiple pads (e.g., 213) in the area corresponding to the light-emitting device 100. The light-emitting device 100 can be electrically connected to substrate 210 via bonding members 217. The light-emitting device 100 may have a bonding portion disposed beneath it, and the bonding portion can be electrically connected to the pads of substrate 210. When multiple light-emitting devices 100 are present, they can be connected in series or in parallel. The thickness of substrate 210 may be less than the thickness of light-emitting device 100.

[0048] The light emitting device 100 emits light through one surface, and the surface through which it emits light can be defined as a light emitting surface S2 or a side surface. The light emitting surface S2 of the light emitting device 100 can be adjacent to the substrate 210, and can be a side surface disposed in a direction perpendicular to the upper surface of the substrate 210. The light emitting surface S2 is disposed on a side surface between the bottom surface and the upper surface of the light emitting device 100, and light is emitted to the exit surface S1 of the resin layer 220 through the light emitting surface S2. The light emitting surface S2 of the light emitting device 100 can be adjacent to the second reflective member 230, and can be a surface perpendicular to the upper surface of the substrate 210 and the upper surface of the second reflective member 230. The thickness of the light emitting device 100 can be less than the length (e.g., the length of the long side) of one side of the light emitting device 100. The thickness of the light emitting device 100 can be 2.5 mm or less, for example, 2 mm or less. For example, the thickness of the light emitting device 100 can be in the range of 0.8 mm to 2 mm, for example, can be in the range of 1 mm to 1.8 mm. The thickness of the light emitting device 100 can be 2 times or more of the thickness of the substrate 210, for example, can be in the range of 2 times to 4 times. The height Z0 of the upper surface of the light emitting device 100 can be lower than the upper surface of the resin layer 220. Since the substrate 210 is disposed to have a thin thickness, the lighting module 200 can be disposed as a flexible board.

[0049] The light emitting device 100 can include a device having an LED chip or a package in which an LED chip is packaged. For example, in the light emitting device 100, a light emitting chip 71, i.e., an LED chip, can be disposed and packaged in the cavity 20, and the opening area of the cavity 20 can become the light emitting surface S2. The light emitting chip can emit at least one of blue light, red light, green light, and ultraviolet (UV) light. The light emitting device 100 can emit at least one of white, blue, red, and green. The light emitting device 100 can emit light in a lateral direction, and the substrate 210 can be disposed on the support portion 511. For example, the light emitting device 100 can be a side view type package or a package having a light emitting surface S2 on one side. As another example, the light emitting device 100 can be an LED chip, and one surface of the LED chip can be open and a reflective member can be disposed on the other surface. Alternatively, an LED chip can be disposed on the substrate 210, and light can be emitted through the upper surface and the side surface of the LED chip.

[0050] The resin layer 220 can be made of a light-transmissive material such as silicone or epoxy resin. The resin layer 220 can include a glass material as another material. The resin layer 220 can be a layer without impurities or can include impurities such as a diffusing agent. The resin layer 220 can include at least one of an organic silicon-based material, an organic silicon molding compound (SMC), an epoxy-based material, and an epoxy molding compound (EMC). The resin layer 220 can include a UV (ultraviolet) curable resin or a thermosetting resin material, for example, and can selectively include PC, OPS, PMMA, PVC, or the like. For example, the main material of the resin layer 220 can be a resin material having a urethane acrylate oligomer as a main material. For example, a urethane acrylate oligomer, which is a synthetic oligomer, and a mixture of a polymer type of polyacrylic acid can be used. Of course, the main material can further include a monomer mixed with a low-boiling dilution type reactive monomer such as IBOA (isobornyl acrylate), HPA (hydroxypropyl acrylate), 2-HEA (2-hydroxyethyl acrylate), or the like, and can be mixed with a photoinitiator (for example, 1-hydroxycyclohexyl phenyl ketone or the like) or an antioxidant as an additive.

[0051] A bead (not shown) can be included in the resin layer 220, and the bead can diffuse and reflect incident light to increase the amount of light. The resin layer 220 can include a phosphor. The phosphor can include at least one of a yellow, green, blue, and red phosphor.

[0052] The width or height of the exit surface S1 of the resin layer 220 can be 4 mm or less, for example, 3 mm or less, or can be set to a width greater than 1 times the thickness of the light emitting device 100 and less than 2 times the thickness of the light emitting device 100. For example, the thickness Z1 of the resin layer 220 can be 3 mm or less, for example, in the range of 1.5 mm to 3 mm, or in the range of 1.6 mm to 2.5 mm. The resin layer 220 can be formed on the substrate 210 with a constant thickness Z1. The lighting module 200 emits a surface light having a narrow line width, so that it can be incident on the reflection part 510 with a uniform brightness distribution, and the reflection part 510 can be reflected and converged to a region set by a curved surface protruding toward the bottom. The upper surface area of the resin layer 220 can be the same as the upper surface area of the substrate 210. The upper surface area of the resin layer 220 can be the same as the upper surface area of the second reflection member 230 and / or the upper surface area of the first reflection member 240. As described above, the resin layer 220 can be formed on the substrate 210 with a constant thickness Z1, and the upper surface area of the resin layer 220 can be the same as the upper surface area of the substrate 210. The resin layer 220 can be formed on the substrate 210 with a constant thickness Z1, and the upper surface area of the resin layer 220 can be the same as the upper surface area of the second reflection member 230. The resin layer 220 can be formed on the substrate 210 with a constant thickness Z1, and the upper surface area of the resin layer 220 can be the same as the upper surface area of the first reflection member 240. Figure 7 and Figure 8As shown, a length D2 at a first side Sa1 of the illumination module 200 can be greater than a length D3 at a second side Sb1 opposite the first side Sa1. The first side Sa1 and the second side Sb1 can be surfaces extending from both ends of the exit surface S1. A distance between the first side Sa1 and the second side Sb1 is a length of the exit surface S1 and can be greater than the lengths D2 and D3. The light emitting surface S2 and the exit surface S1 can be disposed parallel to each other. For example, a straight line extending in a length direction of the light emitting surface S2 and a straight line extending in a length direction of the exit surface S1 can be parallel to each other. Thus, light emitted by the light emitting device 100 and traveling along the optical axis can be transmitted without being reflected from the exit surface S1.

[0053] The resin layer 220 can be disposed between the first reflective member 240 and the second reflective member 230. The upper surface of the second reflective member 230 and the lower surface of the first reflective member 240 can face each other on the lower and upper surfaces of the resin layer 220. The upper surface of the first reflective member 240 and the lower surface of the second reflective member 230 can have the same area. Thus, the resin layer 220 can diffuse light emitted from the light emitting device 100 and light reflected by the first reflective member 240 and the second reflective member 230 to guide them in the lateral direction.

[0054] Since the resin layer 220 is formed to have a thickness greater than that of the light emitting device 100, the upper portion of the light emitting device 100 can be protected and penetration of moisture can be suppressed. Accordingly, the gap Z4 between the upper surface of the resin layer 220 and the light emitting device 100 can be 0.6 mm or less, for example, in the range of 0.3 mm to 0.6 mm. The thickness Z1 of the resin layer 220 is the distance between the first reflective member 240 and the second reflective member 230, and the distance (e.g., Z1) between the first reflective member 240 and the second reflective member 230 can be less than the distance between the two opposite sides of the resin layer 220. The distance or gap between the second reflective member 230 and the first reflective member 240 is arranged to be less than the width or height of the lighting module 200, thereby providing a linear surface light from the lighting module 200 and improving brightness and preventing hot spots. The second reflective member 230 can reflect light emitted from the light emitting device 100. The second reflective member 230 can be formed on the upper surface of the substrate 210. The second reflective member 230 can be formed as an upper layer of the substrate 210 or as a separate layer. The second reflective member 230 can be adhered to the upper surface of the substrate 210 by an adhesive. The resin layer 220 can be formed on the upper surface of the second reflective member 230. The second reflective member 230 has an opening 232 in a region corresponding to the lower surface of the light emitting device 100, and the light emitting device 100 can be connected to the substrate 210 through the opening 232. A portion of the first resin layer 220 can be in contact with the substrate 210 through the opening 232. The opening 232 can be a region in which the light emitting device 100 is bonded to the substrate 210. The second reflective member 230 can be formed as a single layer or a multi-layer structure. The second reflective member 230 can include a material that reflects light, such as a metal or a non-metal material. When the second reflective member 230 is a metal, it can include a metal layer, such as stainless steel, aluminum (Al), or silver (Ag), and in the case of a non-metal material, it can include a white resin material or a plastic material. The second reflective member 230 can include a white resin material or a polyester (PET) material. The second reflective member 230 can include at least one of a low reflection film, a high reflection film, a diffuse reflection film, and a regular reflection film. For example, the second reflective member 230 can be provided as a specular reflection film for reflecting incident light. The second reflective member 230 can include a dot pattern thereon. One side of the second reflective member 230 can be disposed on the same plane as one side of the resin layer 220. As another example, the resin layer 220 can be disposed at the end portion of the second reflective member 230 to prevent penetration of moisture from the outside.

[0055] The thickness of the second reflective member 230 can be less than the thickness of the substrate 210. The thickness of the second reflective member 230 can be 0.5 times or more of the thickness of the substrate 210 to reduce transmission loss of incident light. The thickness of the second reflective member 230 can be in the range of 0.2 mm to 0.4 mm, and when less than the range, light transmission loss can occur, and when thicker than the range, the thickness of the illumination module 200 can increase. The thickness of the first reflective member 240 can be less than the thickness of the substrate 210. The thickness of the first reflective member 240 is set to be 0.5 times or more of the thickness of the substrate 210, thereby reducing transmission loss of incident light. The thickness of the first reflective member 240 can be in the range of 0.2 mm to 0.4 mm, and when less than the range, light transmission loss can occur, and when thicker than the range, the thickness of the illumination module 200 can increase. The first reflective member 240 can be disposed on the entire upper surface of the resin layer 220 to reduce light loss. The first reflective member 240 can be made of the same material as the second reflective member 230. To reflect light and reduce transmission loss of light, the first reflective member 240 can be made of a material having a higher light reflectance than the light reflectance of the second reflective member 230 or can have a thicker thickness. The first reflective member 240 can have the same thickness as the second reflective member 230 or a thicker thickness. For example, the first reflective member 240 and the second reflective member 230 can be disposed to be the same material and the same thickness. The first reflective member 240 can be formed in a single layer or a multi-layer structure. The first reflective member 240 can include a material that reflects light, such as a metal or a non-metal material. When the first reflective member 240 is a metal, it can include a metal layer, such as stainless steel, aluminum (Al), or silver (Ag), and in the case of a non-metal material, it can include a white resin material or a plastic material. The first reflective member 240 can include a white resin material or a polyester (PET) material. The first reflective member 240 can include at least one of a low reflection film, a high reflection film, a diffuse reflection film, and a regular reflection film. For example, the first reflective member 240 can be disposed as a regular reflection film so that incident light travels in the direction of the first surface S1.

[0056] Here, a light extraction structure such as a concave-convex structure can be disposed on the exit surface S1 of the resin layer 220. Accordingly, the extraction efficiency of light emitted through the resin layer 220 can be improved. The exit surface S1 can be processed to be a matte surface, so that light can be diffused. The matte surface can be processed to be rougher than the other surfaces Sa1 and Sb1 of the resin layer 220 to diffuse emitted light. The illumination module 200 according to an embodiment of the present application can provide a flexible linear surface light source by providing a thickness in the height direction in the form of a line.

[0057] As Figure 1 and Figure 2As illustrated, the support portion 511 and the reflection portion 510 can be connected to each other by the inner side wall 515. The maximum height h1 of the inner side wall 515 can be 0.5 cm or less, for example, can be in the range of 0.4 cm to 0.5 cm. A layer of a reflective material can be formed on the surface of the inner side wall 515. The recess R1 of the reflection portion 510 can include a curved surface that protrudes toward the bottom. The surface of the reflection portion 510 can be a mirror surface having an aspherical shape, or a reflective layer can be formed thereon. Curved surfaces having different curvatures can be connected to the surface of the reflection portion 510 to form the shape of the inner surface of the reflection portion 510. The reflective layer can be formed of a metal such as aluminum, silver, gold, copper, or an alternative alloy thereof. The outer side wall 520 extends from the upper end of the reflection portion 510, and the outer side wall 520 can face the exit surface S1 of the lighting module 200. A layer of a reflective material can be formed on the inner surface of the outer side wall 520. The outer side wall 520 can extend in a vertical direction from the upper end of the reflection portion 510, or can have a concave or / convex inner surface and can extend in a vertical direction. Here, the vertical direction can be a direction perpendicular to the direction of the optical axis 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 side wall 520 can be disposed on the upper periphery of the reflection portion 510 and can be disposed on the upper periphery of the support portion 511. Accordingly, the outer side wall 520 can cover the outside of the lighting module 200. The opening area Ra between the outer side wall 520 and the lighting module 200 can be an upper area of the recess R1, or can be an area connected with the accommodation portion R2. The curved upper end K2 of the reflection portion 510 can be disposed to be equal to or lower than a straight line extending from the support portion 511 or the lower surface of the lighting module 200. Further, the exit surface S1 can be disposed higher than the curved upper end K2 of the reflection portion 510.

[0058] When the first boundary portion or the curved lower end is defined between the lower end of the reflection portion 510 and the lower end K1 of the inner side wall 515, and the second boundary portion is defined between the curved upper end K2 of the reflection portion 510 and the lower end of the outer side wall 520, the curved surface of the reflection portion 510 can be higher in an area away from the first boundary portion, and the distance between the curved surface of the reflection portion 510 and the inner side wall 515 can increase in the upward direction. With respect to a straight line X1 extending horizontally based on the first boundary portion, the angle Q1 between a virtual straight line V1 passing through the curved lower end K1 and the curved upper end K2 can be 50 degrees or less, for example, can be 45 degrees or less, and the angle Q2 between the straight line V1 and the inner side wall 515 can be 60 degrees or less, for example, can be in the range of 10 degrees to 60 degrees. The angle Q1+Q2 between the straight line V1 and the inner side wall 515 can be less than or equal to 90 degrees, so that the inner side wall 515 can be disposed as an inclined surface. In this case, the curved surface of the reflection portion 510 can be formed to have a curvature that is greater than the curvature of the inner side wall 515. Figure 1 In the structure illustrated, the first inclination of the straight line V1 connecting both ends of the curved surface of the reflection portion 510 can be less than the second inclination of the straight line V1 connecting both ends of the curved surface of the reflection portion 510. Figure 2The structure shown illustrates the second inclination of the straight line connecting the two ends of the curved surface of the reflector 520. That is, the height of the curved surface of the reflector 510 gradually increases from the lower end of one side of the emission surface S1 to the lower end of the other side, and can have a gradually increasing height as it moves away from the lower ends of both sides of the emission surface S1. Here, the lower end of one side of the emission surface S1 can be a curved lower end adjacent to the first side surface Sa1, while the lower end of the other side can be a curved lower end adjacent to the second side surface Sb1.

[0059] like Figures 4 to 7 As shown, the optical component 501 may be provided with a housing 500, which has a support portion 511 and a reflective portion 510. The support portion 511 of the housing 500 may be provided at the bottom of the receiving portion, and the reflective portion 510 may have a recess R1 and be provided below the emission side of the illumination module 200. An outer side wall 520 may be provided around the upper part of the housing 500 to block light traveling to the upper part of the reflective portion 510 and cover the exterior of the illumination module 200. The housing 500 may include a support portion 511 having a receiving portion R1 in one area and a reflective portion 510 having a recess R2 in another area. The emission surface S1 of the illumination module 200 may be exposed toward the recess R1. The opening OP1 of the light-shielding member 540 may overlap with a portion of the recess R1.

[0060] The distance h2 between the curved upper end K2 of the reflector 510 and the transparent cover 530 can be equal to or less than the thickness of the lighting module 200. Therefore, the transparent cover 530 can press the lighting module 200 towards the support 511. The upper surface of the support 511 or the bottom of the receiving portion R1 can be a horizontal plane. The upper surface of the support 511 and the lower surface of the lighting module 200 can be configured to be parallel to each other. As another example, the lighting module 200 can be configured with an inclined structure having a lower depth towards the emission surface S1. The material of the housing 500 is a resin material, and for example, it can include at least one material selected from plastic, polypropylene (PP), polyethylene (PE), polycarbonate (PC), PBT (polybutylene terephthalate), ABS (acrylonitrile butadiene styrene copolymer), POM (polyoxymethylene, polyacetal), PPO (polyphenylene ether) resin, and modified PPO resin. Furthermore, the casing 500 may include at least one of silver (Ag), copper (Cu), titanium (Ti), magnesium (Mg), chromium (Cr), molybdenum (Mo), nickel (Ni), aluminum (Al), stainless steel, and alloys containing the same. Figure 7 As shown, the shape of the bottom of the support portion 511 can be the same as the shape of the bottom surface of the lighting module 200. A hole 519 for insertion of the connector 590 can be provided in the support portion 511. The connector 590 can be electrically connected to the substrate 210 of the lighting module 200.

[0061] The exit surface S1 of the lighting module 200 can be disposed on the same vertical plane as the upper end K3 of the inner side wall 515, or can further protrude. As another example, the upper end of the exit surface S1 can protrude more than the lower end, thereby improving light output efficiency in the direction of the reflection part 510. The upper end K3 of the inner side wall 515 is disposed to be equal to or higher than the upper end K2 of the reflection part 510, thereby reducing leakage or loss of light emitted through the exit surface S1. The transparent cover 530 can extend from the upper portion of the lighting module 200 to the upper portion of the recess R1. The transparent cover 530 can be selectively formed of a transparent material, for example, PC, OPS, PMMA, PVC, or the like. The transparent cover 530 can adhere or press the lighting module 200 on the support part 511. A portion of the transparent cover 530 is disposed on the stepped part 524, which is disposed on the outer side wall 520 of the housing 500, and the stepped part 524 can be disposed around the upper periphery of the recess R1. The upper surface of the stepped part 524 can be disposed on the same straight line as the upper surface of the lighting module 200, and the lower surface of the transparent cover 530 can be supported on the upper surface of the lighting module 200. The lower surface of the lighting module 200 can be adhered to the support part 511 by an adhesive layer, and the adhesive layer is a transparent material and can be an adhesive such as a UV adhesive, silicone, or epoxy. The upper portion flow of the lighting module 200 can be blocked by the transparent cover 530, and the horizontal flow can be blocked by the adhesive or other mechanisms. A portion of the transparent cover 530 can include a protrusion 533 in combination with the groove 525 of the outer side wall 520 on one side of the accommodation part R2, but is not limited thereto.

[0062] The transparent cover 530 is disposed in a plane perpendicular to the exit surface S1 of the lighting module 200, so that when the surface light emitted through the exit surface S1 of the lighting module 200 is incident, it can be diffused or refracted in different directions.

[0063] The transparent cover 530 can have a light-shielding coating on the upper surface and / or the lower surface, or can emit light through an open area OP2 corresponding to the upper portion of the recess R1. As Figure 5 shown, when the light-shielding member 540 is disposed on the transparent cover 530, the transparent cover 530 can be made of a material that transmits or diffuses light. The transparent cover 530 can have a rough surface and can be processed so that a hot spot is not visible from the outside. As Figure 6 and Figure 7 shown, the light-shielding member 540 emits light emitted through the transparent cover 530 through the opening part OP1, and the light emitted through the opening part OP1 can be used as an indicator. At least one or more indicators can be provided, and when a plurality of indicators are provided, the indicators can be the same as or different from each other. The indicator can be formed of at least one of a logo, an icon, a symbol, and a marker shape for identification. Reference will be made to the Figure 15The indicator is described in detail.

[0064] As shown in Figure 4 and Figure 8 , the lighting module 200 can have different lengths D2 and D3 in the direction of light emission (e.g., X). The lengths D2 and D3 can 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 can be 50% or less of the maximum length D1 of the transparent cover 530. The maximum length D2 in one direction (e.g., X) can be greater than 50% of the maximum length D1 of the transparent cover 530. The maximum length direction of the transparent cover 530 can be the same as the direction of the optical axis having the highest central luminous intensity among the light emitted from the light emitting device 100.

[0065] The lengths D2 and D3 of the lighting module 200 in one direction can be the largest on the driver side and the smallest on the object side. Accordingly, the exit surface S1 of the lighting module 200 can be inclined at a predetermined angle Q3 from the area adjacent to the first side surface Sa1 to the area adjacent to the second side surface Sb1. The angle Q3 is the angle between the horizontal virtual straight line and the extension line Lb of the inclined exit surface S1, and can be in the range of 60 degrees or less, for example, 10 to 60 degrees or 20 to 50 degrees. When the angle Q3 is greater than the above range, the area of the recess R1 can be reduced, and when the angle Q3 is less than the above range, a difference in the amount of reflected light can occur. Here, at the bottom of the reflection part 510, the first area Ra is surface-treated to reflect the incident light in the vertical direction, as shown in (A) of Figure 12 , and the second area Rb can be surface-treated to reflect to the area set as shown in (B) of Figure 12 . For example, the first area Ra overlapping the opening part OP1 in the vertical direction can reflect light in the vertical direction. In addition, in the second area Rb not overlapping or partially overlapping the opening part OP1 in the vertical direction, light can be reflected toward the opening part OP1 or toward the driver side. Accordingly, it is possible to suppress the reduction in brightness of the light emitted through the opening part OP1, and it is possible to provide the driver with light having a higher brightness value. Accordingly, the driver can more effectively visually recognize the indicator.

[0066] In addition, the light emitting device 100 can be inclined at a predetermined angle Q5 based on the virtual straight line extending to the rear surface, and the inclination angle Q5 can be in the range of 60 degrees or less, for example, 10 to 60 degrees or 20 to 50 degrees. The light emitted by the inclined light emitting device 100 can be emitted toward the second area Rb with the highest luminous intensity, and the light reflected from the second area Rb of the reflection part 510 can be seen in the direction toward the driver with the highest brightness value.

[0067] As shown in Figure 9As shown, the light emitting device 100 can be inclined and disposed on the substrate of the lighting module 200, and a pointing angle R10 of light emitted from the inclined light emitting device 100 can be in a range of 100 degrees or more, for example, 105 degrees to 140 degrees. In this case, the other component 105 disposed on the substrate 210 can be disposed in a region outside the light pointing angle R10. That is, considering the pointing characteristic of the light emitting device, the component 105 can be disposed in a region not interfering with light emitted from the light emitting device. This is because the lower surface of the substrate 210 is disposed in close contact with the support portion 511 of the housing 500, and thus it is not possible to mount a component on the lower surface of the substrate, so that the component 105 on the upper portion of the substrate 210 can be disposed in a region outside the light pointing angle R10.

[0068] As shown, Figure 10 The transparent cover 530 can be disposed on the upper portion of the housing 500. The transparent cover 530 can be disposed to have a long length in a direction from the first outer surface S21 to the second outer surface S22. The maximum length X0 of the housing 500 can be in a range of 1.2 cm or more, for example, 1.2 cm to 1.7 cm, and the maximum width Y0 of the housing 500 can be in a range of 0.8 cm or more, for example, 0.8 cm to 1.5 cm, and the size of the housing 500 is not limited thereto. The size of the housing 500 can vary depending on the space to be installed or the lighting target.

[0069] As shown, Figure 13 The light shielding member 540 can be disposed on the transparent cover 530 and the upper surface of the housing 500. The light shielding member 540 can be adhered to the upper surface of the housing 500 of the optical assembly 501, or can be adhered to the rearview mirror. In addition, an indicator can be formed in at least one of the rearview mirror and the light shielding member 540.

[0070] As shown, Figures 14 to 16 The optical assembly 501 can be incorporated into the accommodation space 560 of the back plate 690 disposed on the rear surface of the rearview mirror. Here, the rearview mirror can be a right side rearview mirror with respect to the driver, and the optical assembly 501 can be disposed outside the center of the back plate 690 to detect and alarm an external object.

[0071] The assembly combined with the left / right rearview mirrors 601 / 603 of the moving object such as a vehicle can include the optical assemblies 501 and 503 described above, respectively. Since the rearview mirror assemblies 601 and 603 are symmetrical to each other in the same shape, an example in which the optical assembly is applied to the right rearview mirror assembly has been described.

[0072] As shown, Figure 15As shown, the virtual straight line PC on which the driver is located is exposed through the left mirror / right mirror exposure indicator SM1 based on the illumination module 200, or the indicator SM1 can be displayed when the illumination module 200 is driven. The indicator SM1 can be formed as at least one of a sign, an icon, a symbol, and a mark for identification, and can be formed on a region of at least one of the rearview mirrors 601 and 603 and the light shielding member 540. For example, the indicator SM1 can be formed on the rearview mirrors 601 and 603, and can be provided in a region of the rearview mirrors 601 and 603 overlapping the opening portion OP1 of the light shielding member 540. Alternatively, the indicator SM1 can be formed in the light shielding member 540 and can be formed in the opening portion OP1 of the light shielding member 540. The indicator SM1 can overlap the first region Ra of the reflection portion 510 vertically. In addition, the indicator SM1 can not overlap or partially overlap the second region Rb of the reflection portion 510. One or more indicators SM1 can be provided. For example, when a plurality of indicators are provided, a first indicator can be provided at the driver side (set region A1), and can be provided with a larger area than a second indicator. The second indicator can be provided toward the outside of the first indicator or toward the object side regions A2 and A3, or can be provided outside the lower portion of the first indicator. That is, the light emitted from the illumination module 200 can be reflected by the reflection portion 510 having a non-spherical shape and pass through the opening portion OP1 of the light shielding member 540. In this process, the light emitted from the illumination module 200 can be provided as a surface light source and can pass through the indicator SM1 formed on the rearview mirror and / or the light shielding member 540, and the indicator SM1 can be identified from the outside. Accordingly, the rearview mirror assembly can effectively provide information on an external object to a user. In addition, the light emitted from the illumination module 200 can be provided in various forms, such as a continuous alarm through the indicator SM1, a flickering form, or a form in which the brightness value is gradually increased or decreased.

[0073] As Figures 15 to 17 shown, the left mirror 601 / right mirror 603 of the moving object such as the vehicle 801 can include the optical assemblies 501 and 503 described above. Since the assemblies including the rearview mirrors 601 and 603 are symmetrical to each other in the same shape, an example applied to the right mirror has been described for convenience of description. For example, when the other moving object 803 or the object is located at the left / right side of the vehicle with respect to the driver or the vehicle 801, the light emitted from the illumination module 200 of the optical assemblies 501 and 503 can be emitted to the outside from the rearview mirror through the indicator. Accordingly, the light emitted through the left mirror assembly / right mirror assembly can be emitted in a set direction (for example, the direction of the driver), and can have different brightness values according to the emission direction.

[0074] Specifically, when there are a virtual horizontal straight line Ph passing through the rearview mirrors 601 and 603 located at the left or right side and straight lines Pc1 and Pc2 perpendicular to the horizontal straight line Ph, the luminance value of the first region A1 (for example, the set region A1) located in the inner side direction can be different from the luminance values of the second region A2 and the third region A3 located in the outer side direction, compared to the straight lines Pc1 and Pc2. In detail, the first region A1 can have a higher luminance value than the second region A2 and the third region A3. That is, in the present embodiment, since the surface of the reflection part 510 is formed as an aspherical surface, it is possible to control the luminance value according to the light exit direction. For example, it is possible to control the luminance values of the light emitted to the first region A1, the second region A2, and the third region A3. Further, in each of the first region A1, the second region A2, and the third region A3, it is possible to control the luminance value according to the exit direction. In addition, since the surface of the reflection part 510 is formed as an aspherical surface, each light emitted in the direction of the first region A1, the second region A2, and the third region A3 passing through the opening part OP1 can have a uniform luminance. Therefore, the present embodiment can minimize the light loss by controlling the luminance value according to the exit direction and effectively provide the driver of the moving object with light of a relatively high luminance, and can provide other moving objects located at the rear side of the moving object with light of a relatively low luminance.

[0075] Figure 18 and Figure 19 are a front view and a side view showing the light emitting device on the substrate in the illumination module 200. Referring to Figure 18 and Figure 19The 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 can be implemented as a side view type package. The body 10 can include the cavity 20 in which the lead frames 30 and 40 are exposed at a bottom. For example, the plurality of lead frames 30 and 40 are separated into a first lead frame 30 and a second lead frame 40 and are combined to the body 10. The body 10 can be formed of an insulating material. The body 10 can be formed of a reflective material. The body 10 can be formed of a material having a reflectivity higher than a transmissivity of a wavelength emitted from the light emitting chip, for example, a material having a reflectivity of 70% or more. When the reflectivity is 70% or more, the body 10 can be defined as a non-transmissive material or a reflective material. The body 10 can be formed of a resin-based insulating material, for example, a resin material such as polyphthalamide (PPA). The body 10 can be formed of a silicon-based, an epoxy-based, or a thermosetting resin including a plastic material or a high heat and light resistant material. The body 10 can include a reflective material, for example, a resin material to which a metal oxide is added, and the metal oxide can include at least one of TiO2, SiO2, and Al2O3. The body 10 can effectively reflect incident light. As another example, the body 10 can be formed of a translucent resin material or a resin material having a phosphor for converting a wavelength of incident light. A bottom of the body 10 can be a side surface corresponding to the substrate 210. The first lead frame 30 includes a first lead portion 31 disposed on a bottom of the cavity 20, a first bonding portion 32 extending to an outside of the body 10, and a first heat dissipation portion 33. The first bonding portion 32 can be bent from the first lead portion 31 in the body 10 and protrude to an outside of the body, and the first heat dissipation portion 33 can be bent from the first bonding portion 32. The second lead frame 40 includes a second lead portion 41 disposed on the bottom of the cavity 20, a second bonding portion 42 disposed on an outside region of the body 10, and a second heat dissipation portion 43. The second bonding portion 42 can be bent from the second lead portion 41 in the body 10, and the second heat dissipation portion 43 can be bent from the second bonding portion 42. Here, the light emitting chip 71 can be disposed on the first lead portion 31 of the first lead frame 30, and can be connected to the first lead portion 31 and the second lead portion 41 with a wire or can be connected to the first lead portion 31 with an adhesive and to the second lead portion 41 with a wire. The light emitting chip 71 can be a horizontal chip, a vertical chip, or a chip having a through-hole structure. The light emitting chip 71 can be mounted in a flip chip method. The light emitting chip 71 can selectively emit light in a wavelength range of ultraviolet light to visible light. For example, the light emitting chip 71 can emit ultraviolet light or light of a blue peak wavelength. The light emitting chip 71 can include at least one of a II-VI compound and a III-V compound.For example, the light emitting chip 71 can be formed of a compound selected from the group consisting of GaN, AlGaN, InGaN, AlInGaN, GaP, AlN, GaAs, AlGaAs, InP, and a mixture thereof. One or more light emitting chips 71 can be disposed in the cavity 20 and emit light in the direction of the central axis Y0 with the maximum intensity. One or more light emitting chips can be disposed in the cavity 20 of the light emitting device 100 according to the embodiment. For example, the light emitting chip can be selected from a red LED chip, a blue LED chip, a green LED chip, and a yellow-green LED chip.

[0076] The molding member 80 is disposed in the cavity 20 of the main body 10, and the molding member 80 includes a light-transmissive resin such as silicone or epoxy resin, and can be formed in a single layer or multiple layers. The molding member 80 or the light emitting chip 71 can include a phosphor for changing the wavelength of the emitted light, and the phosphor excites a portion of the light emitted from the light emitting chip 71 to emit light having a different wavelength. The phosphor can be selectively formed of a quantum dot, YAG, TAG, silicate, nitride, and an oxynitride-based material. The phosphor can include at least one of a red phosphor, a yellow phosphor, and a green phosphor, but is not limited thereto. The light emitting surface S2 of the molding member 80 can be formed in a planar shape, a concave shape, a convex shape, etc., but is not limited thereto. As another example, a light-transmissive film having a phosphor can be disposed on the cavity 20, but the present disclosure is not limited thereto. A lens can be further formed on the upper portion of the main body 10, and the lens can include a structure of a concave lens and / or a convex lens, and can adjust the light distribution of the light emitted by the light emitting device 100. A semiconductor device such as a light receiving device and a protection device can be mounted on the main body 10 or any one of the lead frames, and the protection device can be implemented as a thyristor, a Zener diode, or a TVS (Transient Voltage Suppression), and the Zener diode protects the light emitting chip from electrostatic discharge (ESD). At least one light emitting device 100 is disposed on the substrate 210, and the second reflective member 230 is disposed around the lower portion of the light emitting device 100. The first lead portion 33 and the second lead portion 43 of the light emitting device 100 are bonded to the pads 213 and 215 of the substrate 210 with solder or conductive tape as the conductive bonding members 217 and 219.

[0077] The optical assembly according to the embodiments of the present application can be used as a light or a car light of a moving object. The optical assembly can be applied to a light inside or outside of a vehicle. The light is an example of a car light, such as a headlight, a side light, a rearview mirror light, a fog light, a tail light, a brake light, a daytime running light, interior lighting, a door sill, a rear combination light, or a backup light that can be used as a warning device. The features, structures, effects, etc. described in the above embodiments are included in at least one embodiment of the present application, and are not necessarily limited only to one embodiment. Furthermore, the features, structures, effects, etc. shown in each embodiment can be combined or modified by one of ordinary skill in the art to which the embodiments belong for other embodiments. Accordingly, what is related to these combinations and modifications should be interpreted as being included in the scope of the present application.

Claims

1. An optical assembly comprising: an illumination module including a substrate, a resin layer provided on the substrate, and a light emitting device inside the resin layer, and having an exit surface for emitting light on one side surface of the illumination module; a reflection portion having a recessed portion at a lower portion of an exit side of the illumination module, and having a curved surface of an aspheric surface at a bottom of the recessed portion; and a transparent cover above the recessed portion, wherein the resin layer seals the light emitting device, wherein a length of the exit surface of the illumination module is greater than a length of another side surface of the illumination module opposite to the exit surface, wherein a straight line extending along a length direction of the exit surface of the illumination module is inclined with respect to a straight line extending along a length direction of the another side surface of the illumination module. 2.The optical assembly according to claim 1, comprising: a support portion having a housing portion in which the illumination module is provided; an inner side wall extending from the support portion to a lower end of the reflection portion; and an outer side wall provided to surround the reflection portion and an upper portion of the support portion, wherein the curved surface of the reflection portion has a gradually deepening depth as approaching the lower end of one side of the exit surface. The curved surface of the reflection portion has a gradually rising height from the lower end of one side of the exit surface to a lower end of another side of the exit surface.

3. The optical assembly of claim 2, wherein, The illumination module includes:

4. The optical assembly of claim 2 or 3, wherein, a first reflection member on the resin layer; and a second reflection member between the resin layer and the substrate, wherein the light emitting device is provided on the substrate, wherein the exit surface is provided to be parallel to a light emitting surface provided on one side of the light emitting device. A height of the exit surface of the illumination module in a vertical direction is the same as a thickness of the resin layer, 5. The optical assembly of claim 4, wherein, wherein the thickness of the resin layer is 4 mm or less, and wherein an upper surface of the support portion is flat, wherein the vertical direction is a direction from an upper surface to a lower surface of the illumination module. 6.The optical assembly according to claim 4, comprising: a stepped portion provided to surround an upper periphery of the recessed portion, wherein an upper end of the curved surface in the reflection portion is provided to be equal to or lower than a straight line extending horizontally with respect to a lower surface of the illumination module, wherein a periphery of the transparent cover is provided on the stepped portion of the outer side wall, and wherein a lower surface of the transparent cover is supported on an upper surface of the illumination module. 7.The optical assembly according to claim 4, an angle between the straight line extending along the length direction of the exit surface of the illumination module and the straight line extending along the length direction of the surface opposite to the exit surface is in a range of 10 degrees to 60 degrees, wherein wherein the illumination module includes a first side surface and a second side surface facing each other, wherein the first side surface and the second side surface extend from both ends of the exit surface, wherein a length of the first side surface is longer than a length of the second side surface. ​ 8. The optical assembly according to claim 4, comprising a housing having the reflecting portion, the supporting portion, the inner side wall, and the outer side wall, and wherein a reflecting layer of a metal material is provided on the reflecting portion.

9. The optical assembly according to claim 8, comprising a light-shielding member provided on an upper surface of the housing and the transparent cover and having an opening portion overlapping a partial region of the recess in a vertical direction, wherein, the vertical direction being a direction from an upper surface to a lower surface of the illumination module.

10. A rearview mirror assembly comprising: a housing including a supporting portion having a receiving portion in one region and a reflecting portion having a recess in another region; an illumination module provided in the receiving portion and having an exit surface exposed toward the recess at a side surface of the illumination module; a transparent cover provided on the receiving portion and the recess; and a light-shielding member provided on an upper surface of the housing and the transparent cover and having an opening portion in a region overlapping the recess, wherein a bottom portion of the recess has a curved surface having a deeper depth toward a lower end of one side of the exit surface, wherein the illumination module includes a substrate, a light emitting device on the substrate, and a resin layer covering the light emitting device, wherein the exit surface emits a surface light, wherein the surface light is reflected by the reflecting portion and emitted through the opening portion, wherein a length of the exit surface of the illumination module is greater than a length of another side surface of the illumination module opposite to the exit surface, wherein a height of the exit surface of the illumination module in a vertical direction is the same as a thickness of the resin layer, wherein a straight line extending along a length direction of the exit surface of the illumination module is inclined with respect to a straight line extending along a length direction of the another side surface of the illumination module. the bottom portion of the recess has a curved surface of an aspheric surface and is provided below a lower surface of the illumination module, 11. The rearview mirror assembly of claim 10, wherein, the rearview mirror assembly has a back plate and a rearview mirror, and the housing is housed in the back plate and the rearview mirror.

12. The rearview mirror assembly according to claim 11, further comprising at least one indicator formed on at least one region of the rearview mirror and the light-shielding member. ​

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