Vehicle light

Abstract

The vehicle lamp can include a plurality of optical modules and a light mixing mirror for mixing light emitted from each of the plurality of optical modules in front of the plurality of optical modules, so that an optical system can be freely designed without limitation according to a shape of the lamp, and uniform light projection in a surface light source form can be implemented.

Description

Technical Field

[0001] This disclosure relates to a vehicle lamp, and more specifically, to a vehicle lamp whose optical system can be freely designed without being limited by the shape of the lamp, and which simultaneously achieves uniform light projection in the form of a surface light source. Background Technology

[0002] Typically, headlights are mounted on either side of the front of a vehicle. Headlights consist of a low beam unit and a high beam unit. Headlights provide illumination by creating specific patterns around the vehicle or on the road surface.

[0003] The headlight consists of a reflector (which reflects light emitted from a light-emitting diode (LED)) and a shield (which separates the light reflected from the reflector into low beam and high beam). The low beam and high beam are projected onto the front of the vehicle through an aspherical lens.

[0004] However, traditionally, the design of headlights is limited because the light distribution pattern is formed by applying short-focal-length aspherical lenses. Furthermore, to achieve a slender projection, the aspherical lens is often divided into upper and lower sections. In this case, the size and weight of the optical module may increase because the thickness of the optical lens increases with the diameter of the aspherical lens.

[0005] Therefore, there is a need to develop technologies to simplify the structure and manufacturing process and improve the design characteristics of headlights.

[0006] [Related Technical Documents]

[0007] [Patent Literature]

[0008] (Patent Document 1) Korean Patent No. 1713159 (Granted on February 28, 2017) Summary of the Invention

[0009] One aspect of this disclosure provides a vehicle lamp including multiple optical modules and a mixing lens, the mixing lens being used to mix light emitted from the front of the multiple optical modules to freely design the optical system without being limited by the shape of the vehicle lamp, and at the same time, to achieve uniform light projection in the form of a surface light source.

[0010] According to one aspect of this disclosure, a vehicle light may include: a plurality of optical modules, each emitting light and spaced apart from each other; and a mixing mirror disposed in front of the plurality of optical modules to mix the light emitted by the plurality of optical modules to form a light projection in the form of a surface light source.

[0011] The mixed-light mirror can bend backward from the inside of the car along the outside.

[0012] The curvature of the mixed-light mirror can increase from the inside of the vehicle to the outside.

[0013] A light mixing mirror can be configured such that light passing through the mirror becomes parallel light within 1° over the entire horizontal region.

[0014] In a light mixing mirror, the incident surface of light emitted from the optical module can be concave, and the exit surface of light passing through the light mixing mirror can be convex. The thickness of the light mixing mirror can decrease from the inside of the vehicle to the outside, and the curvature of the incident surface and the curvature of the exit surface can increase from the inside of the vehicle to the outside.

[0015] A light mixing mirror can be configured such that light passing through the light mixing mirror becomes parallel light within 1° over the entire region in the vertical direction.

[0016] In a light mixing mirror, the incident surface of light emitted from the optical module can be concave, and the exit surface of light passing through the light mixing mirror can be convex. Furthermore, in the light mixing mirror, the curvature of the incident surface can be greater than the curvature of the exit surface at all locations.

[0017] Multiple optical modules may include at least one first optical module and at least one second optical module, wherein the primary mirror of the first optical module and the primary mirror of the second optical module may be formed by different types of lenses.

[0018] The first optical module can be located inside the vehicle, and the second optical module can be located outside the vehicle. The primary lens of the first optical module can be a concave lens, and the primary lens of the second optical module can be a convex lens.

[0019] In the primary mirror of the first optical module, the incident surface and the exit surface can be concave in the horizontal direction and convex in the vertical direction, respectively; in the primary mirror of the second optical module, the incident surface and the exit surface can be convex in the horizontal direction and convex in the vertical direction, respectively.

[0020] The light shield of the first optical module can be located at the vertical focal position of the primary mirror of the first optical module.

[0021] The horizontal and vertical focal points of the primary mirror in the second optical module can be formed in the same position.

[0022] The light shield of the second optical module can be located at the horizontal or vertical focal position of the primary mirror of the second optical module.

[0023] A light mixing mirror can be a single lens.

[0024] The headlight may also include an external mirror positioned in front of the mixing mirror, wherein the curvature of the incident surface of the external mirror may be formed to be the same as the curvature of the exit surface of the mixing mirror. Attached Figure Description

[0025] The above and other aspects, features and advantages of this disclosure will become clearer from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0026] Figure 1 This is a perspective view of a vehicle headlight according to an example of this disclosure, viewed from the rear and above.

[0027] Figure 2 It is viewed from the front and above. Figure 1 A 3D view of the car's headlights;

[0028] Figure 3 It is viewed from the top. Figure 1 A plan view of the car's headlights;

[0029] Figure 4 This is a stereoscopic view of the mixing mirror as seen from the rear.

[0030] Figure 5 This is a schematic diagram showing the light path of light passing through a mixing mirror in the horizontal direction;

[0031] Figure 6 This is a schematic diagram showing the light path of light passing through a mixing mirror in the vertical direction;

[0032] Figure 7 This is a schematic diagram showing the mixing mirror together with cross-sections A and B at a certain point;

[0033] Figure 8 It is shown again Figure 3 A schematic diagram;

[0034] Figure 9A and Figure 9B This is a schematic diagram used to describe the first optical module and the second optical module;

[0035] Figure 10A and Figure 10B This is a schematic diagram showing the actual optical path of the light emitted from the optical module;

[0036] Figure 11A and Figure 11B This is a schematic diagram used to describe the horizontal and vertical focal points of the first optical module;

[0037] Figure 12A and Figure 12B This is a schematic diagram used to describe the horizontal and vertical focal points of the second optical module;

[0038] Figure 13 This is a schematic diagram showing the light projection of a headlight according to the VE simulation results of this disclosure; and

[0039] Figure 14This is a schematic diagram showing the light projection of the headlights based on the VE simulation results of the comparative example headlights. Detailed Implementation

[0040] In the following description, exemplary embodiments of the present disclosure will be illustrated with reference to the accompanying drawings.

[0041] Figure 1 This is a perspective view of a vehicle headlight according to an example of this disclosure, viewed from the rear and above. Figure 2 It is viewed from the front and above. Figure 1 A 3D view of the car lights. Figure 3 It is viewed from above. Figure 1 A plan view of a vehicle headlight. As shown, the headlight 10 of this disclosure includes multiple optical modules 100 and a mixing mirror 200, and may also include an external mirror 300. The headlight 10 of this disclosure may be a vehicle headlight mounted on the left front side and the right front side of a vehicle.

[0042] The optical module 100 is a light-emitting optical structure. The lamp 10 of this disclosure includes a plurality of optical modules 100, and each of the plurality of optical modules 100 can be configured to be spaced apart from each other by a predetermined distance. The headlights of a vehicle can be shaped to curve sharply rearward from the inside of the vehicle to the outside. By configuring a plurality of optical modules 100, each optical module 100 emitting light in the shape of a headlight, each optical module 100 can be freely positioned in an appropriate location, thereby allowing the optical system to be freely configured without being limited by the shape of the headlight.

[0043] Each optical module 100 may include a reflector 110, a shield 120, and a primary mirror 130.

[0044] Reflector 110 corresponds to a reflective structure used to reflect light emitted from a light source housed therein and focus the light to a point in front of reflector 110. The reflective surface of reflector 110 can be formed by one or more multi-reflective surfaces. The light source housed in reflector 110 can be formed by various light-emitting elements or devices (e.g., LEDs) and can produce single or multiple colors of light according to design specifications.

[0045] The shield 120 is disposed in front of the reflector 110 and corresponds to an optical structure that blocks some of the light reflected from the reflector 110. The end of the shield 120 can be configured to form a light-dark cutoff line in the light distribution pattern by limiting the light emitted from the light source, and a stepped structure can be formed in the central part of the shield 120 to separate the near beam and the far beam.

[0046] The primary mirror 130 is a lens disposed in front of the shield 120, allowing light to pass through the shield 120 to form a light distribution pattern. In this disclosure, the primary mirror 130 may be formed by a concave lens or a convex lens, the details of which will be described below.

[0047] The light mixing mirror 200 is a single lens positioned in front of multiple optical modules 100. It can mix the light emitted from each of these optical modules 100 to form a light projection in the form of a surface light source. The light projection is the illumination projection of a lamp formed on the surface of the lamp (more specifically, the surface of the outer mirror) when the lamp is observed from the outside while it is lit. The lamp 10 of this disclosure can use the light mixing mirror 200 to mix the light emitted from each optical module, so as to uniformly emit light onto the entire area of ​​the outer mirror surface, thereby forming a continuous light projection without any discontinuity.

[0048] In other words, as described above, this disclosure has a structure in which multiple optical modules 100 are separated from each other. Therefore, due to the spacing between the optical modules 100, the formation of the light projection may be non-uniform. By providing a mixing mirror 200 in front of the optical modules 100 for mixing the light emitted from each optical module 100, this disclosure can obtain a light projection in the form of a surface light source. More specifically, the mixing mirror 200 can be used to uniformly distribute the light emitted from the primary mirror 130 of each optical module 100, so that when the lamp is observed from the outside, a light projection in the form of a uniform surface light source can be seen. For this purpose, micro-patterns can be formed on the exit surface of the mixing mirror 200.

[0049] The outer lens 300 is a protective lens disposed in front of the light mixing mirror 200, and can be made of a transparent material with a predetermined thickness and curvature, such as polycarbonate (PC). The overall shape of the outer lens 300 can correspond to the overall shape of the light mixing mirror 200. More specifically, the light mixing mirror 200 can be designed to correspond to the shape or curvature of the outer lens 300 in the horizontal direction, so that the curvature of the incident surface (i.e., the rear surface) of the outer lens 300 and the curvature of the exit surface (i.e., the front surface) of the light mixing mirror 200 can be formed to be substantially the same.

[0050] Although the outer mirror 300 is illustrated as being spaced a predetermined distance from the mixing mirror 200, the outer mirror 300 can be configured to be in close contact with the mixing mirror 200. Furthermore, the outer mirror 300 and the mixing mirror 200 can be configured as a single unit. Due to the presence of the outer mirror 300, the optical structures housed therein, namely the mixing mirror 200 and the plurality of optical modules 100, can be separated from the outside and protected from external influences.

[0051] The lamp 10 of this disclosure can have an elongated shape that is linear in the horizontal direction, and in response, the outer mirror 300 and the mixing mirror 200 can also have elongated shapes. In addition, each of the plurality of optical modules 100 can have the same height as the outer mirror 300 and the mixing mirror 200, and can be arranged parallel from the inside of the vehicle to the outside.

[0052] The mixing mirror 200 will be described in detail below.

[0053] Figure 4 This is a three-dimensional view of the mixing mirror as seen from the rear. As shown, viewed from above, the mixing mirror 200 can curve rearward from the inside of the vehicle along the outside. This corresponds to the curvature of the vehicle body, which can be a form where the curvature increases from the inside to the outside of the vehicle, or a form where it curves sharply at the end of the outside of the vehicle.

[0054] As described above, the light mixing mirror of this disclosure can bend rearward from the inside of the vehicle along the outside. To meet the required optical performance and light projection, optical correction of the lens bending is necessary. Therefore, the light mixing mirror 200 of this disclosure can be configured such that light passing through the light mixing mirror 200 is incident as parallel light onto the main mirror 130 of the optical module in both the horizontal and vertical directions. That is, the light mixing mirror 200 can be configured such that the light path of light passing through the light mixing mirror 200 is parallel throughout the entire region in the horizontal direction, and simultaneously, the light path of light passing through the light mixing mirror 200 is parallel throughout the entire region in the vertical direction.

[0055] Figure 5 This is a schematic diagram illustrating the light path of light passing through a mixing mirror in the horizontal direction. As shown, the light path of light passing through the mixing mirror 200 can be substantially parallel throughout the entire region of the mixing mirror 200 in the horizontal direction. More specifically, the exit angle of the light passing through the mixing mirror 200 can be formed within 3° of the incident angle of the light incident on the mixing mirror 200, preferably within 2°, and more preferably within 1°. Therefore, the light passing through the mixing mirror 200 can be parallel light within 1° throughout the entire region in the horizontal direction.

[0056] Figure 6 This diagram illustrates the light path of light passing through a mixing mirror in the vertical direction, and shows a cross-section of the mixing mirror at a point. As shown, the light path of light passing through the mixing mirror 200 can be substantially parallel throughout the entire region of the mixing mirror 200 in the vertical direction. More specifically, the exit angle of light passing through the mixing mirror 200 can be formed within 3° of the incident angle of light incident on the mixing mirror 200, preferably within 2°, and more preferably within 1°. Therefore, the light passing through the mixing mirror 200 can be parallel light within 1° throughout the entire region in the vertical direction.

[0057] Figure 7 This is a schematic diagram showing the light mixing mirror together with cross-sections A and B at a certain point. The light mixing mirror 200 includes an incident surface 210 and an exit surface 220. Light emitted from the optical module is incident on the incident surface 210, and light passing through the light mixing mirror 200 exits through the exit surface 220. The incident surface 210 may be concave, and the exit surface 220 may be convex.

[0058] exist Figure 7In the diagram, section A corresponds to the section on the inner side of the vehicle, and section B corresponds to the section on the outer side of the vehicle. Figure 7 In the image, D_IC refers to the thickness of the central portion of the inner cross-section A, D_IS refers to the thickness of the edge portion of the inner cross-section A, D_OC refers to the thickness of the central portion of the outer cross-section B, and D_IS refers to the thickness of the edge portion of the outer cross-section B. In the cross-section of the mixing mirror, D_IS and D_OS can correspond to the same position. That is, the distance from D_IC to D_IS and the distance from D_OC to D_OS can be the same. Cross-sections A and B are relative points used to distinguish the inner and outer sides of the vehicle. When any two points are selected in the mixing mirror 200, in... Figure 7 In the diagram, the point on the left can correspond to cross section A, and the point on the right can correspond to cross section B.

[0059] In this case, in order to make the light path of the light passing through the mixing mirror 200 parallel in the entire region in the horizontal direction, the mixing mirror 200 can be configured such that the thickness decreases from the inside of the vehicle to the outside of the vehicle, and the curvature of the incident surface 210 and the curvature of the exit surface 220 increase.

[0060] Specifically, since the thickness of the mixing mirror 200 decreases from the inside of the vehicle to the outside, the thickness D_OC of the outer cross-section B can be configured to be less than the thickness D_IC of the inner cross-section A, and the thickness D_OS of the outer cross-section B can be configured to be less than the thickness D_IS of the inner cross-section A. Furthermore, since the curvature of the incident surface 210 and the exit surface 220 increases from the inside of the vehicle to the outside, the curvature of the incident surface 210 of the outer cross-section B can be made greater than the curvature of the inner incident surface 210. Simultaneously, the curvature of the exit surface 220 of the outer cross-section B can also be greater than the curvature of the exit surface 220 of the inner cross-section A. In this case, the curvature difference between D_IS and D_IC of the cross section B on the outer side of the vehicle can be greater than the curvature difference between D_IS and D_IC of the cross section A on the inner side of the vehicle. The difference between the curvature of the incident and exit surfaces of the outermost part of the inner side of the vehicle and the curvature of the incident and exit surfaces of the outermost cross section on the outer side of the vehicle can be maximized. The incident and exit surfaces of the outermost cross section on the inner side of the vehicle can have smaller curvature and be relatively flat.

[0061] To ensure that the light path of light passing through the mixing mirror 200 is parallel throughout the vertical region, the mixing mirror 200 can be configured such that the curvature of the incident surface 210 is greater than the curvature of the exit surface 220 at all locations. Specifically, the curvature of the incident surface 210 of the cross-section A on the inner side of the vehicle can be set to be greater than the curvature of the exit surface 220. Similarly, the curvature of the incident surface 210 of the cross-section B on the outer side of the vehicle can be set to be greater than the curvature of the exit surface 220. Thus, at any point in all locations of the mixing mirror 200, the curvature of the incident surface 210 can be set to be greater than the curvature of the exit surface 220.

[0062] By configuring the mixing mirror in this way, optical curvature correction can be performed even if the mixing mirror has a curved shape, and therefore, the light passing through the mixing mirror can remain parallel. Thus, the light path of the light emanating from the primary mirror and incident on the mixing mirror can be configured to be parallel, which helps to produce a clearer light projection in the form of a surface light source.

[0063] The optical module 100 and the mixing mirror 200 will be described in detail below.

[0064] Figure 8 It is shown again Figure 3 A schematic diagram is shown. As shown, the multiple optical modules 100 include a first optical module 100A and a second optical module 100B, and multiple first optical modules 100A and multiple second optical modules 100B can be provided. The first optical module 100A can be arranged in parallel and continuously on the inner side of the vehicle, and the second optical module 100B can be arranged in parallel and continuously on the outer side of the vehicle.

[0065] Figure 9A and Figure 9B This is a schematic diagram used to describe the first optical module and the second optical module. Figure 9A A first optical module 100A is shown, which may include a reflector 110A, a protective cover 120A, and a primary mirror 130A. Figure 9B A second optical module 100B is shown, which may include a reflector 110B, a shield 120B, and a primary mirror 130B. Here, each first optical module 100A has the same structure. That is, the reflector 110A, shield 120A, and primary mirror 130A constituting each first optical module 100A are designed to have the same shape. Similarly, each second optical module 100B has the same structure. That is, the reflector 110B, shield 120B, and primary mirror 130B constituting each second optical module 100B are designed to have the same shape.

[0066] Figure 9A and Figure 9BThe dashed line shown is used to describe the focal point of the primary mirror 130. When parallel light is incident from the mixing mirror 200 onto the primary mirror 130, the parallel light can correspond to the light path of the corresponding parallel light.

[0067] The main difference between the first optical module 100A and the second optical module 100B is the primary mirror. The primary mirror 130A of the first optical module 100A and the primary mirror 130B of the second optical module 100B can be formed from different types of lenses. More specifically, the primary mirror 110A of the first optical module can be formed from a concave lens, and the primary mirror 100B of the second optical module can be formed from a convex lens.

[0068] Refer again Figure 8 , Figure 9A , Figure 9B A region inside the vehicle is referred to as the wide region, and a region outside the vehicle is referred to as the hot region. In this case, the first optical module 100A can be disposed in the wide region, and the second optical module 100B can be disposed in the hot region. By forming the primary mirror 130A as a concave lens with a virtual focal point, the first optical module 100A disposed in the wide region has a virtual focal point, so the light emitted from the primary mirror 130A of the first optical module 100A to the light mixing mirror 200 is divergent; by forming the primary mirror 130B as a convex lens, the second optical module 100B disposed in the hot region has a single focal point, so the light emitted from the primary mirror 130B of the second optical module 100B to the light mixing mirror 200 can be parallel.

[0069] Figure 10A and Figure 10B This is a schematic diagram showing the actual optical path of the light emitted from the optical module. For example... Figure 10A As shown, it can be determined that the light emitted from the first optical module 100A is diffused and directed towards the light mixing mirror 200 through the first primary mirror 130A, which is a concave lens, while the light emitted from the second optical module 100B is directed towards the light mixing mirror 200 in parallel through the second primary mirror 130B, which is a convex lens.

[0070] In this way, by appropriately setting and designing optical modules formed by different types of primary mirrors in the wide area inside the vehicle and the hot area outside the vehicle, corresponding to the curvature of the mixing mirror, the distortion of light distribution projection caused by aberrations due to lens curvature can be minimized.

[0071] Figure 11A and Figure 11B This is a schematic diagram used to describe the horizontal and vertical focal points of the first optical module. Figure 11A This is a three-dimensional view of the first optical module from the side. Figure 11BThis is a plan view of the first optical module from above. As shown, the primary mirror 130A of the first optical module 100A can be configured such that the incident surface 131A and the exit surface 132A are concave in the horizontal direction and convex in the vertical direction, respectively. Therefore, as... Figure 11A The vertical focal point of the primary mirror 130A shown can form a single focal point, such as Figure 11B The horizontal focal point of the primary mirror 130A shown can form a virtual focal point. In this case, the shield 120A of the first optical module 100A can be set at the vertical focal point position of the primary mirror 130A of the first optical module 100A.

[0072] Figure 12A and Figure 12B This is a schematic diagram used to describe the horizontal and vertical focal points of the second optical module. Figure 12A This is a three-dimensional view of the second optical module from the side. Figure 12B This is a plan view of the second optical module from above. As shown, the primary mirror 130B of the second optical module 100B can be configured such that the incident surface 131B and the exit surface 132B are both convex in the horizontal and vertical directions. Therefore, as... Figure 12A The vertical focal point of the primary mirror 130B shown can be formed as a single focal point, such as Figure 12B The horizontal focal point of the primary mirror 130B shown can be formed as a single focal point. In this case, the vertical and horizontal focal points of the primary mirror 130B of the second optical module 100B can be formed at the same position, and the protective cover 120B of the second optical module 100B can be set at the corresponding focal point position.

[0073] Based on this configuration, such as Figure 10A and Figure 10B As shown, light emitted from the primary mirror of the first optical module diverges towards the mixing mirror, while light emitted from the primary mirror of the second optical module strikes the mixing mirror parallel to it. Therefore, the light from the primary mirror on the inner side of the vehicle (with a smaller curvature) and the primary mirror on the outer side (with a larger curvature) can be evenly distributed. Consequently, the light projection through the mixing mirror can form a clear surface light source.

[0074] Figure 13 This is a schematic diagram illustrating the light projection of a headlight according to the present disclosure using VE simulation results. As shown, it can be determined that a light projection in the form of a uniform surface light source has been achieved.

[0075] On the other hand, as a comparative example, an optical module formed by a convex lens, rather than an optical module formed by a concave lens, is placed in the wide area, and the experimental results for this case are as follows. (See again...) Figure 8In this disclosure, a first optical module formed by a concave lens is disposed in the wide region, and a second optical module formed by a convex lens is disposed in the hot region. In the comparative example, however, an optical module formed by a convex lens is disposed in both the wide region and the hot region. More specifically, in the case of the comparative example, an anamorphic lens (belonging to the category of convex lenses) is disposed in the wide region, and a single-focus lens (belonging to the category of convex lenses) is disposed in the hot region.

[0076] Figure 14 This is a schematic diagram showing the light projection of the headlight based on the VE simulation results of the comparative example headlight. As shown in the figure, it can be confirmed that a non-uniform light projection has been achieved.

[0077] As described above, in this disclosure, the headlight's design shape curves sharply backward from the inside to the outside of the vehicle body, following the vehicle's curvature, and its shape is elongated. To ensure that the light projection of the headlight is uniformly distributed as a surface light source, the light source includes multiple optical modules. In this case, the concave lens optical module is positioned in the wide area inside the vehicle body, the convex lens optical module is positioned in the hot area outside the vehicle body, and a light-mixing lens is mounted in front of the multiple optical modules, located between the optical modules and the external mirror, thereby achieving the desired optical performance, lamp design, and light projection.

[0078] As described above, according to exemplary embodiments of the present disclosure, the optical system can be freely designed without restriction according to the shape of the lamp, and uniform light projection in the form of a surface light source can be achieved by including a plurality of optical modules and a mixing mirror for mixing the light emitted from each optical module in front of the plurality of optical modules.

[0079] Although embodiments of the present disclosure have been described above with reference to the accompanying drawings, those skilled in the art will understand that the present disclosure may be implemented in other specific forms without departing from the spirit or essential characteristics of the disclosure. Therefore, it should be understood that the exemplary embodiments described above are illustrative in all respects and not restrictive.

Claims

1. A vehicle lamp characterized by comprising: Comprising a plurality of optical modules each emitting light and spaced apart from each other; and a light mixing mirror disposed in front of the plurality of optical modules, mixing light emitted by each of the plurality of optical modules to form a light projection in the form of a surface light source, wherein the light mixing mirror curves from an inside of a vehicle to an outside of the vehicle toward the rear, wherein the plurality of optical modules includes at least one first optical module and at least one second optical module, and a main mirror of the first optical module and a main mirror of the second optical module are formed of different types of lenses, wherein the first optical module is disposed on the inside of the vehicle, the second optical module is disposed on the outside of the vehicle, and the main mirror of the first optical module is a concave lens and the main mirror of the second optical module is a convex lens.

2. The vehicle lamp of claim 1, wherein The curvature of the light mixing mirror increases from the inside of the vehicle to the outside of the vehicle.

3. The vehicle lamp of claim 1, wherein The light mixing mirror is configured so that light passing through the light mixing mirror becomes parallel light within 1° in an entire area in a horizontal direction.

4. The vehicle light of claim 3, wherein In the light mixing mirror, an incident surface on which light emitted from the optical modules is incident is formed in a concave shape, an exit surface from which light passing through the light mixing mirror exits is formed in a convex shape, and the thickness of the light mixing mirror decreases from the inside of the vehicle to the outside of the vehicle, and the curvature of the incident surface and the curvature of the exit surface increase from the inside of the vehicle to the outside of the vehicle.

5. The vehicle lamp of claim 1, wherein The light mixing mirror is configured so that light passing through the light mixing mirror becomes parallel light within 1° in an entire area in a vertical direction.

6. The vehicle light of claim 5, wherein In the light mixing mirror, an incident surface on which light emitted from the optical modules is incident is formed in a concave shape, an exit surface from which light passing through the light mixing mirror exits is formed in a convex shape, and In the light mixing mirror, the curvature of the incident surface is greater than the curvature of the exit surface at all positions.

7. The vehicle lamp of claim 1, wherein In the main mirror of the first optical module, an incident surface and an exit surface are concave in a horizontal direction and convex in a vertical direction, and In the main mirror of the second optical module, an incident surface and an exit surface are convex in a horizontal direction and convex in a vertical direction.

8. The vehicle light of claim 7, wherein The shield of the first optical module is located at a position of a vertical focal point of the main mirror of the first optical module.

9. The vehicle light of claim 7, wherein, A horizontal focal point and a vertical focal point of the main mirror of the second optical module are formed at the same position.

10. The vehicle light of claim 9, wherein, The shield of the second optical module is located at a position of a horizontal focal point or a vertical focal point of the main mirror of the second optical module.

11. The vehicle lamp of claim 1, wherein The light mixing mirror is a single lens.

12. The vehicle light of claim 1, wherein, Further comprising: an outer mirror disposed in front of the light mixing mirror, wherein the curvature of an incident surface of the outer mirror is formed to be the same as the curvature of an exit surface of the light mixing mirror.

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