Projection lamp and vehicle

Abstract

The invention provides a projection lamp and a vehicle. The projection lamp comprises a shell with a light emitting hole and a light emitting assembly. The light emitting assembly comprises a light source, a light mixing lens, a shading piece, a micro lens array and an outer lens arranged at a light emitting hole which are sequentially arranged in the light emitting direction; the number of the light sources is multiple, each light source can emit light of various different colors, the light mixing lens is provided with multiple dimming units, the multiple dimming units correspond to the multiple light sources in a one-to-one mode, and each dimming unit is provided with a light mixing part facing the corresponding light source and a light condensing part back to the corresponding light source; the shading piece is provided with a plurality of light emitting channels corresponding to the dimming units one to one. According to the projection lamp disclosed by the invention, the plurality of light sources and the light mixing lens which can emit light of various colors are arranged, so that the light of various colors is mixed and condensed by the light mixing lens and then correspondingly emitted through the plurality of light emitting channels on the shading piece, the micro-lens array and the outer lens; therefore, colorful dynamic patterns can be formed through projection.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle projection lamps, and in particular to a rearview mirror projection lamp. The present invention also relates to a vehicle equipped with the rearview mirror projection lamp. Background Art

[0002] In the prior art, the body of a car usually uses a film-pasting and drawing process to enhance the appearance and refinement of the body. The drawing pattern is single and inconvenient to change. Since the micro lens array (MLA) has a small size and a long focal depth, it can clearly display images on various types of display surfaces. It has now been applied in large quantities in automobile lighting systems. For example, the pattern can be displayed on the ground through MLA projection technology.

[0003] However, the pattern projected by MLA can only project fixed patterns, that is, it can only display static patterns, and cannot display dynamic patterns, which cannot meet the use requirements well. Although some dynamic effects can be achieved by lighting or extinguishing each MLA in a certain order through the synergy of multiple MLAs, the cost is high, and the coordination and connection between multiple MLAs is also difficult. In addition, in the prior art, all patterns projected by MLA can only process monochromatic light, and cannot project multi-color dynamic patterns of multiple different colors of light. Summary of the invention

[0004] In view of this, the present invention aims to provide a projection lamp that can mix a plurality of different color lights to emit light, thereby facilitating the projection of colorful dynamic patterns.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] A projection lamp comprises a housing with a light outlet hole, and a light outlet assembly arranged in the housing; the light outlet assembly comprises a light source, a light mixing lens, a light shielding member, a micro lens array and an outer lens arranged in sequence along an optical axis direction;

[0007] There are multiple light sources, each of which can emit light of multiple different colors;

[0008] The light mixing lens has a plurality of dimming units, the plurality of dimming units correspond to the plurality of light sources one by one, and each of the dimming units has a light mixing portion arranged facing the corresponding light source, and a light focusing portion arranged facing away from the corresponding light source;

[0009] The shading member has a plurality of light outlet channels, and the plurality of light outlet channels correspond one to one with the plurality of dimming units;

[0010] The outer lens is arranged at the light exit hole.

[0011] Furthermore, a circuit board is provided in the shell, and a plurality of the light sources are provided on the circuit board; the mounting portion of the light mixing lens and / or the shading member passes through the circuit board and is connected to the shell.

[0012] Furthermore, the microlens array is detachably connected to the shading member.

[0013] Furthermore, a clamping member is clamped on the shading member, and the microlens array is sandwiched between the shading member and the clamping member.

[0014] Furthermore, the distance L between each of the light sources and the light mixing part satisfies: 2mm≤L≤10mm; the thickness m of the light mixing part satisfies: 2mm≤m≤25mm; the light mixing part has a light mixing surface with a middle portion convex toward the light source, and the curvature R of the light mixing surface satisfies: 20mm≤R≤80mm.

[0015] Furthermore, the width B of each of the light-emitting branch channels satisfies: 4mm≤B≤8mm; the height C of each of the light-emitting channels satisfies: 4mm≤C≤8mm; and the diameter φd of the light-emitting hole satisfies: 8mm≤φd≤30mm.

[0016] Furthermore, the shading member has transverse ribs and vertical ribs for separating the multiple light output channels, and the thickness D of the transverse ribs and the vertical ribs satisfies: 0.5mm≤D≤3mm; and / or, the distance K between the focusing part of each mixing lens and the microlens array satisfies: 2.5mm≤K≤8mm.

[0017] Furthermore, the shell includes a first shell and a second shell that are snap-fitted together, and an installation space for the light output component is formed between the first shell and the second shell; and heat dissipation fins are provided on the first shell and / or the second shell.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] The projection lamp described in the present invention uses multiple light sources that can emit multiple different colors of light and a mixing lens, and the light of different colors emitted by each light source is mixed and focused by the mixing lens, and then correspondingly emitted through multiple light outlet channels on the shading member, the microlens array, and the outer lens. In this way, the pattern preset in the microlens array can be projected to form a color pattern, and by adjusting the color of the light source, a color dynamic pattern light emission effect can be formed.

[0020] In addition, arranging multiple light sources on the circuit board can facilitate the control of the color of each light source. The mounting portion of the light mixing lens passes through the circuit board and is connected to the housing, which is conducive to the installation and arrangement of the light mixing lens. The mounting portion of the light shielding member passes through the circuit board and is connected to the housing, which is also conducive to the installation and arrangement of the light shielding member. Moreover, the mounting portions of the light mixing lens and the light shielding member both pass through the circuit board and are connected to the housing, which is conducive to the installation and arrangement of the light mixing lens and the light shielding member, and is also conducive to reducing the occupied space and making the structure of the projection lamp more compact.

[0021] Secondly, the microlens can be detachably connected to the shading member, which can facilitate the installation and arrangement of the microlens. The clamping member provided on the shading member can clamp the microlens array between the shading member and the clamping member through the clamping connection with the shading member, which is conducive to the installation and positioning of the microlens. Setting the distance between each light source and the light mixing part, and setting parameters such as the thickness and curvature of the light mixing part are conducive to mixing light sources of different colors, which is conducive to ensuring the clarity and color effect of the projected pattern.

[0022] Furthermore, the setting of parameters such as the width and height of the light outlet channel can ensure that the light effect of the projection lamp and the layout space are minimized. The setting of the diameter of the light outlet hole can ensure that the light cone of the microlens array can be fully projected from the light outlet hole. The transverse ribs and vertical ribs in the shading member can facilitate the separation of multiple light outlet channels, and the setting of multiple light outlet channels can ensure that the colors of each light source do not cross-talk, and ensure that patterns of different colors are projected to form a color image effect. By setting the thickness of the transverse ribs and vertical ribs, the structural strength of the shading member can be guaranteed, and it is also conducive to the optimization of the layout space of the lamp.

[0023] In addition, the distance between the focusing part of each light mixing lens and the micro lens array is set at 2.5mm-8mm, which can ensure the light effect of the projection lamp and the clarity of the projection. The shell adopts a first shell and a second shell connected by buckling, which has a simple structure and is easy to design and implement. The heat dissipation fins are conducive to dissipating the heat generated by multiple light sources.

[0024] Another object of the present invention is to provide a vehicle, wherein at least one exterior rearview mirror of the vehicle is provided with the projection lamp as described above, and the light outlet of the projection lamp is arranged toward the vehicle body.

[0025] Furthermore, the angle θ between the optical axis of the projection lamp and the X-axis of the vehicle body satisfies: 5°≤θ≤15°, and the angle α between the optical axis of the projection lamp (100) and the Y-axis of the vehicle body satisfies: 0°≤α≤3°.

[0026] Compared with the prior art, the present invention has the following advantages:

[0027] The vehicle described in the present invention can project a color image onto the vehicle body by arranging the above-mentioned projection lamp on the rearview mirror and arranging the light outlet of the projection lamp toward the vehicle body. The projected color pattern can replace the effect of traditional film stickers, thereby enhancing the refinement and technological perception of the vehicle.

[0028] In addition, setting the angle between the optical axis of the projection lamp and the X-axis of the vehicle body can help ensure the size and clarity of the projection pattern. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0030] Figure 1 It is a schematic diagram of the structure of the projection lamp according to an embodiment of the present invention;

[0031] Figure 2 An exploded view of the projection lamp according to an embodiment of the present invention;

[0032] Figure 3 is a cross-sectional view of a projection lamp according to an embodiment of the present invention;

[0033] Figure 4 The optical principle diagram of the projection lamp according to the embodiment of the present invention;

[0034] Figure 5 A schematic diagram of the structure of a circuit board according to an embodiment of the present invention;

[0035] Figure 6 This is a schematic structural diagram of a first viewing angle of a light mixing lens according to an embodiment of the present invention;

[0036] Figure 7 A schematic diagram of the structure of a second viewing angle of the light mixing lens according to an embodiment of the present invention;

[0037] Figure 8 A schematic structural diagram of a light shielding member according to an embodiment of the present invention at a first viewing angle;

[0038] Fig. 9 A schematic structural diagram of a light shielding member according to an embodiment of the present invention at a second viewing angle;

[0039] Fig.10 It is a structural schematic diagram of a clamping member according to an embodiment of the present invention;

[0040] Fig.11 It is a structural schematic diagram of a projection lamp according to an embodiment of the present invention applied to a rearview mirror;

[0041] Fig.12This is a partial enlarged view of the projection lamp according to an embodiment of the present invention applied to a rearview mirror;

[0042] Fig.13 This is a partial cross-sectional view of the projection lamp according to an embodiment of the present invention applied to a rearview mirror.

[0043] Description of reference numerals:

[0044] 1. Shell; 2. Circuit board; 3. Light-mixing lens; 4. Shading member; 5. Microlens array; 6. External lens; 7. Clamping member; 70. Hollow portion; 71. Rib; 710. Clamping hole; 8. Sealing member; 9. Buffer pad; 10. Light outlet hole; 11. First shell; 12. Second shell; 111. Heat dissipation fin; 121. Positioning column; 20. Light source; 21. First through hole; 22. Second through hole; 23. Positioning hole; 24. Connecting hole; 30. First connecting column; 31. Light-mixing portion; 32. Focusing portion; 40. Light outlet channel; 41. Second connecting column; 42. Connecting protrusion;

[0045] 100, projection light; 200, rearview mirror; 300, vehicle body. DETAILED DESCRIPTION

[0046] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0047] In the description of the present invention, it should be noted that if there are terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc., they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first", "second", etc., they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0048] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installed", "connected", "connection" and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0049] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0050] Embodiment 1

[0051] The present embodiment relates to a projection lamp, which can mix lights of multiple different colors to emit light, thereby facilitating the projection of colorful dynamic patterns.

[0052] In terms of overall composition, Figures 1 to 3 As shown, the projection lamp 100 of this embodiment mainly includes a housing 1 having a light outlet 10, and a light outlet assembly arranged in the housing 1. The light outlet assembly includes a light source 20, a light mixing lens 3, a light shielding member 4, a micro lens array 5 and an outer lens 6 arranged in sequence along the light outlet direction.

[0053] There are multiple light sources 20, and each light source 20 can emit light of multiple different colors. The light mixing lens 3 has multiple dimming units, and the multiple dimming units correspond to the multiple light sources 20 one by one. Each dimming unit has a light mixing part 31 arranged facing the corresponding light source 20, and a light focusing part 32 arranged facing away from the corresponding light source 20. The light shielding member 4 has multiple light outlet channels 40, and the multiple light outlet channels 40 correspond to the multiple dimming units one by one. In addition, the outer lens 6 is arranged at the light outlet hole 10.

[0054] At this time, the light of various colors emitted by each light source 20 is mixed and focused by the light mixing lens 3, and then sequentially passes through the multiple light outlet channels 40 on the light shielding member 4, the microlens array 5 and the microlens for light outlet, so that the pattern preset in the microlens array 5 can be projected to form a color pattern, and the color of the light source 20 is adjusted to facilitate the formation of a color dynamic pattern. At the same time, the multiple light outlet channels 40 provided on the light shielding member 4 can effectively prevent the colors of the light sources 20 from being mixed, which is conducive to ensuring the clarity of the projected pattern.

[0055] It should be noted that the light source 20 of this embodiment preferably adopts an LED lamp that can emit a variety of different colors in the prior art, such as a full-color LED lamp, that is, a full-color intelligent LED lamp, which can adjust the color and brightness of the light at will, and the adjusted color can be mixed with the three primary colors of red, green, and blue in a certain proportion to form a light color visible to the human eye.

[0056] For more details, see Figures 1 to 3 As shown, the housing 1 of this embodiment specifically includes a first housing 11 and a second housing 12 that are connected by snapping, and an installation space for the light output component is formed between the first housing 11 and the second housing 12. Among them, the circuit board 2 is installed on the first housing 11. At this time, in order to facilitate the heat dissipation of the light source 20 on the circuit board 2, a heat dissipation fin 111 is also provided on the first housing 11. And as a preference, the first housing 11 also adopts a radiator housing with heat dissipation fins 111.

[0057] It is understandable that, in addition to being arranged on the first housing 11, the heat dissipation fins 111 may also be arranged on the second housing 12, and preferably, the heat dissipation fins 111 are arranged on the housing 1 close to the circuit board 2, so that the electrical components are in a more suitable temperature environment to ensure their normal operation. In addition, it is also understandable that, in addition to using a radiator housing with heat dissipation fins 111, the first housing 11 of this embodiment may also be a separate housing structure, in which case, the radiator housing with heat dissipation fins 111 is connected to the housing structure through a connector such as bolts, and such an arrangement is also feasible.

[0058] In addition, in this embodiment, a sealing member 8 is provided between the first housing 11 and the circuit board 2 , and the sealing member 8 is, for example, a sealing ring, which is helpful to ensure the sealing effect of the installation space and the circuit board 2 .

[0059] Continue to view Figures 1 to 3 As shown, combined with Figure 5 As shown, in this embodiment, a circuit board 2 is provided in the housing 1, and the above-mentioned multiple light sources 20 are arranged on the circuit board 2, so that the brightness and color of the light emitted by the multiple light sources 20 can be adjusted and controlled. In specific implementation, the circuit board 2 can preferably adopt a PCB circuit board 2, and as a preferred embodiment, the multiple light sources 20 arranged on the PCB circuit board 2 are specifically four arranged in a matrix.

[0060] Combination Figure 2 and Figure 5 As shown, in order to facilitate the installation and positioning of the circuit board 2, in this embodiment, a positioning column 121 is provided on the second housing 12, and a positioning hole 23 is provided on the circuit board 2 corresponding to the positioning column 121. When the first housing 11 and the second housing 12 are buckled and connected together through a threaded connector, the positioning column 121 is positioned in the positioning hole 23 in the assembled state of the first housing 11 and the second housing 12, so that the circuit board 2 is positioned and installed in the housing 1.

[0061] As a preferred implementation, in this embodiment, the mounting parts of the light mixing lens 3 and the light shielding member 4 both pass through the circuit board 2 and are both connected to the housing 1. This is not only beneficial to the installation arrangement of the light mixing lens 3 and the light shielding member 4, but also beneficial to reducing the occupied space, making the structure of the projection lamp 100 more compact.

[0062] For specific structure, see Figures 3 to 9 As shown, the mounting portion on the mixing lens 3 of the present embodiment specifically includes two first connecting columns 30 arranged diagonally, and the mounting portion on the shading member 4 is similar in structure to the mounting portion on the mixing lens 3, that is, it also includes two second connecting columns 41 arranged diagonally, and the two first connecting columns 30 and the two second connecting columns 41 are staggered.

[0063] Corresponding to the two first connecting posts 30 and the two second connecting posts 41, a first via hole 21 and a second via hole 22 are provided on the circuit board 2, wherein the first via holes 21 are two diagonally arranged, and the second via holes 22 are also two diagonally arranged. The connecting line between the two first via holes 21 intersects with the connecting line between the two second via holes 22, that is, they are arranged in a staggered manner. In specific implementation, each first connecting post 30 passes through the first via hole 21 and is riveted to the housing 1, and each second connecting post 41 passes through the second via hole 22 and is also riveted to the housing 1. Such an arrangement can facilitate the arrangement and installation of the mixing lens 3 and the shading member 4, and is also conducive to a compact structural design.

[0064] It is understandable that, in addition to both the mounting portion on the light mixing lens 3 and the mounting portion on the light shielding member 4 passing through the circuit board 2 and being connected to the housing 1, only the mounting portion on the light mixing lens 3 may be set to pass through the circuit board 2 and be connected to the housing 1, or only the mounting portion on the light shielding member 4 may be set to pass through the circuit board 2 and be connected to the housing 1. Of course, it is also understandable that the mounting portion on the light mixing lens 3 and the mounting portion on the light shielding member 4 may also be directly connected to the housing 1, in which case the setting position of each mounting portion needs to be adjusted.

[0065] In addition, in this embodiment, the circuit board 2 is also provided with a connection hole 24 connected to the signal output plug-in, so as to facilitate the connection between the circuit board 2 and the external controller.

[0066] The light mixing lens 3 of this embodiment has a structure as follows: Figure 6 and Figure 7 As shown, combined with Figure 3 and Figure 4 As shown, the light-mixing lens 3 has four dimming units corresponding to the four light sources 20, each of which has a light-mixing portion 31 disposed facing the corresponding light source 20, and a light-focusing portion 32 disposed facing away from the corresponding light source 20. As a preferred embodiment, in this embodiment, the distance L between each light source 20 and the light-mixing portion 31 satisfies: 2mm≤L≤10mm, the thickness m of the light-mixing portion 31 satisfies: 2mm≤m≤25mm, and the light-mixing portion 31 has a light-mixing surface facing the light source 20, and the curvature R of the light-mixing surface satisfies: 20mm≤R≤80mm. By setting the distance between each light source 20 and the light-mixing portion 31, as well as the thickness and curvature of the light-mixing portion 31 and other parameters, it is convenient to mix the light sources 20 of different colors, thereby ensuring the clarity and color effect of the projected pattern.

[0067] In a specific implementation, the distance L between each light source 20 and the light mixing portion 31 can be set to 2 mm, 3 mm, 5 mm, 8 mm or 10 mm, for example. The thickness m of the light mixing portion 31 can be set to 2 mm, 5 mm, 10 mm, 15 mm, 20 mm or 25 mm, for example. The curvature R of the light mixing portion 31 can be set to 20 mm, 30 mm, 40 mm, 50 mm, 60 mm, 70 mm or 80 mm, for example.

[0068] Also as a preferred implementation, in this embodiment, the distance K between the light-collecting portion 32 of each light-mixing lens 3 and the micro-lens array 5 satisfies: 2.5mm≤K≤8mm, so that the light effect of the projection lamp 100 and the clarity of projection can be guaranteed. Moreover, in a specific implementation, the distance K between the light-collecting portion 32 of each light-mixing lens 3 and the micro-lens array 5 can be set to 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm or 8mm, for example.

[0069] The light shielding member 4 of this embodiment is structurally as follows: Figure 8 and Fig. 9 As shown, the shading member 4 has connected transverse ribs and vertical ribs, and the transverse ribs and vertical ribs separate the interior of the shading member 4 into a plurality of light outlet channels 40. Moreover, each light outlet channel 40 is arranged in one-to-one correspondence with a plurality of dimming units on the light mixing lens 3. The arrangement of a plurality of light outlet channels 40 can ensure that the colors of the light sources 20 do not cross-talk, and that patterns of different colors are projected to form a color image effect. As a preferred embodiment, the thickness D of the transverse ribs and vertical ribs of this embodiment satisfies: 0.5mm≤D≤3mm, which can ensure the structural strength of the shading member 4 while also facilitating the optimization of the lamp arrangement space.

[0070] In this embodiment, as a preferred embodiment, Fig. 9 As shown, the cross-section of each light emitting channel 40 separated by the transverse ribs and the vertical ribs is rectangular, and the width B of each light emitting channel satisfies: 4mm≤B≤8mm, and the height C of each light emitting channel 40 satisfies: 4mm≤C≤8mm. The setting of parameters such as the width of the light emitting channel 40 and the height of the light emitting channel 40 can ensure the light emitting effect of the projection lamp 100 and minimize the layout space.

[0071] In a specific implementation, the width B of each light-emitting sub-channel can be set to 4 mm, 5 mm, 6 mm, 7 mm or 8 mm, for example. The height C of each light-emitting channel 40 can also be set to 4 mm, 5 mm, 6 mm, 7 mm or 8 mm, for example. The width B and height C of each light-emitting sub-channel can be the same or different to ensure the light-emitting effect of the projection lamp 100.

[0072] It is worth mentioning that, in order to ensure the light emitting effect of the projection lamp 100 , the cross section of each light emitting channel 40 may be set to be circular, elliptical or polygonal in addition to being rectangular.

[0073] In addition, to ensure the light effect of the projection lamp 100 and the clarity of the projection, in this embodiment, the diameter φd of the light exit hole 10 satisfies: 2.5mm≤φd≤8mm. In specific settings, the diameter of the light exit hole 10 can be set to 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 7.5mm or 8mm, for example.

[0074] The microlens array 5 of this embodiment has a customized pattern, which can be set in the microlens array 5 through mature technology in the prior art. As a preferred embodiment, the microlens array 5 of this embodiment can be detachably connected to the shading member 4, so that the microlens array 5 is easy to install and replace.

[0075] Specifically, Figure 2 , Figure 3 and Fig.10 As shown, in this embodiment, a clamping member 7 is clamped on the shading member 4, and the microlens array 5 is specifically sandwiched between the shading member 4 and the clamping member 7. The clamping member 7 has a specific structure, as shown in FIG. Fig.10 As shown, the clamping member 7 has a plate-shaped main body and a retaining edge 71 that bends and extends toward one side of the main body along the edge of the main body. The middle of the main body has a hollow portion 70 for light to pass through, and a clamping hole 710 is provided on the retaining edge 71 opposite thereto. Figure 8 and Fig. 9 As shown, the shading member 4 is further provided with a clamping protrusion 42 , and the clamping protrusion 42 can be clamped in a clamping hole 710 on the clamping member 7 , so that the microlens array 5 can be clamped between the shading member 4 and the clamping member 7 .

[0076] In addition, a buffer pad 9 is also provided between the clamping member 7 and the microlens array 5 , which not only ensures the installation stability of the microlens array 5 but also protects the microlens array 5 to a certain extent.

[0077] The projection lamp 100 of this embodiment is provided with a plurality of light sources 20 and a light mixing lens 3 which can emit light of a plurality of different colors, so that the light of a plurality of different colors is mixed and focused by the light mixing lens 3, and then correspondingly emitted through a plurality of light emitting channels 40 on the shading member 4, the microlens array 5 and the outer lens 6, thereby facilitating the projection to form a colorful dynamic pattern.

[0078] Embodiment 2

[0079] The present embodiment relates to a vehicle, wherein at least one exterior rearview mirror 200 of the vehicle is provided with the projection lamp 100 of the first embodiment, and the light outlet 10 of the projection lamp 100 is arranged toward the vehicle body 300, so that a colorful dynamic pattern can be projected onto the vehicle body 300.

[0080] In terms of specific structure, Figures 11 to 13 As shown, the projection lamp 100 is arranged on at least one side of the exterior rearview mirror 200, and is specifically installed inside the bracket of the rearview mirror 200. In addition, the light outlet 10 of the projection lamp 100 is arranged toward the vehicle body 300, so as to project patterns toward the front door and the rear door. As a preferred embodiment, the FOV of the projection lamp 100, that is, the range that the lens of the projection lamp 100 can cover, is ±10.5°.

[0081] Moreover, in this embodiment, the angle θ between the optical axis of the projection lamp 100 and the X-axis of the vehicle body satisfies: 5°≤θ≤15°, and the angle α between the optical axis of the projection lamp 100 and the Y-axis of the vehicle body satisfies: 0°≤α≤3°. To ensure that a clear pattern is projected onto the vehicle body. In specific implementation, the angle θ can be set to 5°, 7°, 10°, 12°, 14° or 15°, for example, and the angle α can be set to 0°, 1°, 2° or 3°, for example. When it is 0°, that is, the optical axis of the projection lamp 100 is parallel to the Y-axis of the vehicle body. At this time, the projection length of the projected pattern on the front and rear doors can be between 500mm and 3500mm, and the pattern height can be between 200 and 600mm. In addition, the projection pattern width can be set between 20 and 40mm, so as to ensure the feasibility of the manufacturing process of the microlens array 5 and the exquisiteness and clarity of the pattern.

[0082] In specific use, when the user unlocks or approaches the vehicle, the vehicle electronic control unit sends a signal to the projection lamp 100, and the projection lamp 100 identifies the mode to be lit through the signal, and drives the LED light sources 20 to light up sequentially or separately to present different pattern effects, and different lighting effects can also be selected according to needs. It is worth mentioning here that the lighting mode of each light source 20 in the projection lamp 100 can be controlled by existing mature technology.

[0083] The vehicle of this embodiment can project colorful dynamic images onto the vehicle body 300 by applying the projection lamp 100 of the first embodiment, and the projected colorful dynamic patterns can replace the effects of traditional film stickers, thereby enhancing the refinement and technological perception of the vehicle.

[0084] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A projection lamp, characterized in that: It comprises a housing having a light emitting hole (10), and a light emitting component arranged in the housing; The light output component comprises a light source (20), a light mixing lens (3), a light shielding member (4), a microlens array (5) and an outer lens (6) which are sequentially arranged along the optical axis direction; There are a plurality of light sources (20), and each of the light sources (20) is capable of emitting light of a plurality of different colors; The light mixing lens (3) has a plurality of light adjusting units, the plurality of light adjusting units correspond one to one with the plurality of light sources (20), and each of the light adjusting units has a light mixing portion (31) arranged facing the corresponding light source (20), and a light focusing portion (32) arranged facing away from the corresponding light source (20); The shading element (4) has a plurality of light output channels (40), and the plurality of light output channels (40) correspond one-to-one to the plurality of dimming units; The outer lens (6) is arranged at the light exit hole (10).

2. The projection lamp according to claim 1, characterized in that: A circuit board (2) is arranged in the housing, and a plurality of light sources (20) are arranged on the circuit board (2); The mounting portion of the light mixing lens (3) and / or the light shielding member (4) passes through the circuit board (2) and is connected to the housing.

3. The projection lamp according to claim 1, characterized in that: The microlens array (5) is detachably connected to the light shielding member (4).

4. The projection lamp according to claim 3, characterized in that: A clamping piece (7) is clamped on the shading piece (4), and the microlens array (5) is sandwiched between the shading piece (4) and the clamping piece (7).

5. The projection lamp according to claim 1, characterized in that: The distance L between each of the light sources (20) and the light mixing unit (31) satisfies: 2 mm ≤ L ≤ 10 mm; The thickness m of the light mixing portion (31) satisfies: 2 mm ≤ m ≤ 25 mm; The light mixing portion (31) has a light mixing surface with a central portion protruding toward the light source (20), and the curvature R of the light mixing surface satisfies: 20 mm ≤ R ≤ 80 mm.

6. The projection lamp according to claim 1, characterized in that: The width B of each light exit channel (40) satisfies: 4mm≤B≤8mm; The height C of each of the light exit channels (40) satisfies: 4 mm ≤ C ≤ 8 mm; The diameter φd of the light exit hole (10) satisfies: 8mm≤φd≤30mm.

7. The projection lamp according to claim 1, characterized in that: The shading member (4) has transverse ribs and vertical ribs for separating a plurality of light exit channels (40), and the thickness D of the transverse ribs and the vertical ribs both satisfy: 0.5 mm ≤ D ≤ 3 mm; and / or, The distance K between the light focusing portion (32) of each light mixing lens (3) and the microlens array (5) satisfies the following relationship: 2.5 mm ≤ K ≤ 8 mm.

8. The projection lamp according to any one of claims 1 to 7, characterized in that: The housing comprises a first housing (11) and a second housing (12) which are connected by snapping, and an installation space for the light output component is formed between the first housing (11) and the second housing (12); The first shell (11) and / or the second shell (12) are provided with heat dissipation fins (111).

9. A vehicle, characterized in that: The projection lamp (100) according to any one of claims 1 to 8 is provided on at least one exterior rearview mirror (200) of the vehicle, and the light exit hole (10) of the projection lamp (100) is arranged toward the vehicle body (300).

10. The vehicle according to claim 9, characterized in that: The included angle θ between the optical axis of the projection lamp (100) and the X-axis of the vehicle body satisfies: 5°≤θ≤15°, and the included angle α between the optical axis of the projection lamp (100) and the Y-axis of the vehicle body satisfies: 0°≤α≤3°.

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