Multi-module projection lamp and vehicle

Abstract

The utility model relates to a multi-module projection lamp and a vehicle. The multi-module projection lamp comprises a shell, a substrate, a light source, at least two condensing lens modules, a single film, an assembling support and at least two imaging lens modules. The film is provided with at least two light-transmitting imaging patterns; the light sources, the condensing lens modules, the imaging patterns and the imaging lens modules are the same in number and correspond in position. Light generated by the light source sequentially passes through the condensing lens module, the film and the imaging lens module and is projected to a target projection area to form a projection pattern. The multi-module projection lamp is only provided with the single film, the single film is provided with a plurality of light-transmitting imaging patterns, and the whole imaging pattern formed by the plurality of independent sub-imaging patterns is not affected by error factors such as processing and assembling of parts of the projection lamp. Therefore, the final complete projection pattern does not have the problems of pattern superposition or dislocation and the like.

Description

Technical Field

[0001] The utility model relates to a vehicle projection lamp, in particular to a multi-module projection lamp and a vehicle. Background Technique

[0002] Projection lamps can be used to project various patterns. In order to create a sense of luxury for cars, projection lamps are becoming increasingly popular in cars. In the related art, projection lamps project patterns with relatively fixed colors and shapes, which are difficult to meet the growing personalized needs of people. Therefore, in-vehicle projection lamps that can achieve dynamic projection effects have emerged as the times require.

[0003] Currently, the dynamic projection lamps on the market are basically divided into two types. The first type is as Figure 1 shown. It uses a set of focal length lenses, a motor, and a supporting rotating mechanism to perform a rotating motion, driving a bracket loaded with multiple film sheets to rotate, and then the film sheets are driven to rotate. Refer to Patent CN208475096U. The projection lamp with this structure is large in volume, not easy to miniaturize, and has a complex structure and inconvenient assembly.

[0004] The second type is as Figure 2 shown. It uses a control structure to separately control all the projection lamp components, so that any one or any part or all of the projection lamp components can produce a state of projecting light rays, and thus can be combined to form a variety of different-shaped patterns. Refer to Patent CN217899745U. However, if the projection patterns designed by the projection lamp with this structure are overlapping, splicing, or nested patterns, it is very difficult for this structure to ensure the accuracy of the projection patterns. Slight changes in the projection angles of the three modules will cause changes in the positions of the projection patterns, resulting in problems such as overlapping and misalignment of the projected patterns. As Figure 3 shown, the projection pattern shows an obvious misalignment phenomenon, which affects the use. In other words, for the projection lamp with this structure to achieve good results, it requires very high processing accuracy and assembly accuracy, which also means an increase in cost and weak market competitiveness. Summary of the Invention

[0005] To avoid the deficiencies of the background technique, the utility model provides a multi-module projection lamp, which can avoid projecting overlapping and misaligned projection patterns.

[0006] A multi-module projection lamp proposed by the present utility model includes a housing, a substrate, a light source, at least two groups of condenser lens modules, a single piece of film, an assembly bracket, and at least two groups of imaging lens modules; there are at least two light-transmissible imaging patterns on the film; the surface of the assembly bracket facing the light source has a groove for installing the film, and the surface facing away from the light source has a barrel seat portion for installing each of the imaging lens modules and extending outward; the condenser lens modules are arranged between the substrate and the assembly bracket, one end face of which abuts against the substrate, and the other end face abuts against the assembly bracket and the film; the numbers of the light source, the condenser lens modules, the imaging patterns, and the imaging lens modules are the same and their positions correspond to each other; the light generated by the light source sequentially passes through the condenser lens modules, the film, and the imaging lens modules and is projected onto a target projection area to form a projection pattern.

[0007] Further, it further includes a light shielding bracket, the light shielding bracket is arranged between the substrate and the assembly bracket, the light shielding bracket has a light shielding portion, and the light shielding portion can be used to isolate each condenser lens module to prevent light leakage.

[0008] Further, one end face of the light shielding bracket abuts against the substrate, and the other end face abuts against the assembly bracket and the film.

[0009] Further, it further includes an imaging lens barrel, each of the imaging lens modules is installed in a corresponding imaging lens barrel, and the outer side surface of the imaging lens barrel has an external thread; the inner side surface of the barrel seat portion has an internal thread that is matched and installed with the external thread.

[0010] Further, the film is a non-axisymmetric figure.

[0011] Further, both the assembly bracket and the condenser lens modules are connected to the positioning grooves on the substrate through the positioning posts on them.

[0012] Further, the assembly bracket and the substrate are fixedly connected by fixing screws.

[0013] The present utility model also proposes a vehicle, including the multi-module projection lamp as described above.

[0014] The beneficial effect of the present utility model is that the multiple films of the existing multi-module projection lamp are improved to a single film, so that the single film has multiple light-transmissible imaging patterns. The overall imaging pattern formed by multiple independent sub-imaging patterns will not be affected by error factors such as the processing and assembly of the components of the projection lamp. Therefore, problems such as pattern overlap or misalignment will not occur in the final complete projection pattern. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of an existing projection lamp.

[0016] Figure 2It is a schematic structural diagram of another existing projection lamp.

[0017] Figure 3 It is a nested pattern with misalignment problems projected by an existing projection lamp.

[0018] Figure 4 It is a schematic structural diagram of the projection lamp of the embodiment.

[0019] Figure 5 It is a schematic cross-sectional view of the projection lamp of the embodiment.

[0020] Figure 6 It is Figure 5 a partial enlarged view of

[0021] Figure 7 It is an exploded view of the projection lamp of the embodiment.

[0022] Figure 8 It is another exploded view of the projection lamp of the embodiment.

[0023] The reference numerals are as follows: 100 - housing; 200 - substrate; 210 - LED light source; 300 - condenser lens module; 400 - film; 500 - imaging lens module; 600 - mounting bracket; 610 - groove; 620 - barrel base part; 700 - light shielding bracket; 710 - light shielding part; 800 - imaging lens barrel; 900 - fixing screw. Specific Embodiments

[0024] The following further describes the present invention in conjunction with the accompanying drawings and specific embodiments.

[0025] Embodiment, referring to the attached Figures 4 - 8, A multi-module projection lamp, comprising a housing 100, a substrate 200, an LED light source 210, three sets of condenser lens modules 300, a single piece of film 400, an assembly bracket 600, and three sets of imaging lens modules 500; there are three light-transmitting imaging patterns on the film 400; the surface of the assembly bracket 600 facing the light source has a groove 610 for mounting the film 400, and the surface facing away from the light source has a barrel seat portion 620 for mounting the imaging lens module 500 and extending outwards; the condenser lens module 300 is arranged between the substrate 200 and the assembly bracket 600, one end surface of which abuts against the substrate 200, and the other end surface abuts against the assembly bracket 600 and the film 400; the numbers of the LED light source 210, the condenser lens module 300, the imaging pattern, and the imaging lens module 500 are the same and their positions correspond to each other. Both the assembly bracket 600 and the condenser lens module 300 are connected to the positioning slots on the substrate 200 through the positioning posts thereon to limit the relative position in the radial direction, and the assembly bracket 600 and the substrate 200 are connected by fixing screws 900 to limit the relative position in the axial direction; the light generated by the LED light source 210 sequentially passes through the condenser lens module 300, the film 400, and the imaging lens module 500 and is projected onto the target projection area to form a complete projection pattern.

[0026] As Figure 3 shown in the nested imaging pattern, there is an obvious pattern misalignment problem. The core reason for this problem is that: generally, the projection pattern of a single-module projection lamp is determined and corresponding to the imaging pattern on the film 400, while the overall projection pattern of a multi-module projection lamp is formed by multiple sub-projection patterns and requires the relative positions between the sub-projection patterns to be very precise. The relative positions between the sub-projection patterns are mainly determined by the relative positions between the sub-imaging patterns. However, in the existing multi-module projection lamps, the multiple sub-imaging patterns are respectively located on the films 400 of the corresponding modules. When errors such as processing errors and assembly errors accumulate, as long as there is a slight change in the position or angle of the films 400 (or imaging patterns) on each module, after being magnified by the imaging system, problems such as pattern misalignment or overlap will occur in the overall projection pattern.

[0027] In this embodiment, the existing multiple films 400 are improved to a single film 400, so that there are three light-transmitting imaging patterns on the single film 400. The overall imaging pattern formed by the three independent sub-imaging patterns will not be affected by error factors such as the processing and assembly of the components of the projection lamp. Therefore, problems such as pattern coincidence or misalignment will not occur in the final complete projection pattern.

[0028] Since the material of the condenser lens in the prior art cannot be 100% pure, it means that there are trace impurities inside the lens, which may reflect the light propagating inside and cause stray light to appear and emit from the side of the lens. If the stray light enters the condenser lens in the adjacent module, it may affect the imaging effect of the projection pattern of this module. To avoid this problem, in this embodiment, a light isolation bracket 700 is further included. The light isolation bracket 700 is arranged between the substrate 200 and the assembly bracket 600. The light isolation bracket 700 has a light isolation portion 710, and the light isolation portion 710 can be used to isolate each condenser lens module 300 to prevent light leakage; in this embodiment, the light isolation portion 710 is preferably a circular through hole that can accommodate the condenser lens module 300, and the inner diameter of the circular through hole is larger than the outer diameter of the condenser lens module 300.

[0029] To avoid light leakage as much as possible, the light isolation bracket 700 in this embodiment is the same as the condenser lens, and one end surface needs to contact the substrate 200, and the other end surface needs to contact the assembly bracket 600 and the film 400.

[0030] According to the position relationship of the sub-projection patterns in the complete projection pattern, the types of projection patterns include overlapping, splicing, separating, nesting, etc. According to the angle relationship between the optical axis of the projection lamp and the projected surface, the projection lamp can be divided into front projection type and tilt type. For the tilt type projection lamp with a relatively high tilt degree, generally a long and narrow projection pattern can be projected on the projected surface. The distance between the distal end of the projection pattern and the lens is one time or even several times higher than the distance between its proximal end and the lens. This results in the image in the proximal area of the projection pattern of a general projection lamp being clearer, while the image in the distal area being blurrier. The difference in distance leads to inconsistent focal lengths required for the distal and proximal ends of the projection pattern. To make the images at the distal and proximal ends of the projection pattern as clear as possible, the projection lamp in this embodiment further includes an imaging barrel 800. An imaging lens module 500 is installed inside the imaging barrel 800, and the outer side surface of the imaging barrel 800 has an external thread; while the inner side surface of the barrel seat portion 620 of the assembly bracket 600 has an internal thread that matches the external thread for installation. The focal length of the imaging lens module 500 can be adjusted independently through the threaded structure, that is, the clarity of each sub-projection pattern in the complete projection pattern can be adjusted independently, which is particularly suitable for projection lamps with splicing and separating projection patterns.

[0031] In this embodiment, in order to correctly assemble the film 400 in terms of direction and front and back, the film 400 is a non-axisymmetric figure, which can avoid low-level assembly mistakes such as incorrect installation of the film 400.

[0032] Although the present utility model has been described by referring to the preferred embodiments, those of ordinary skill in the art should understand that it is not limited to the description of the above embodiments, and various changes in form and details can be made within the scope of the claims.

Claims

1. A multi-module projection lamp, characterized in that: It includes a housing, a substrate, a light source, at least two sets of focusing lens modules, a single film sheet, an assembly bracket, and at least two sets of imaging lens modules; The film has at least two light-transmissive imaging patterns; The surface of the assembly bracket facing the light source has a groove for mounting the film, and the surface facing away from the light source has a cylindrical seat portion for mounting each imaging lens module and extending outward; The condenser lens module is arranged between the substrate and the assembly bracket, one end surface of the condenser lens module abuts against the substrate, and the other end surface abuts against the assembly bracket and the film; The light source, the focusing lens module, the imaging pattern and the imaging lens module are the same in number and have corresponding positions; the light generated by the light source passes through the focusing lens module, the film and the imaging lens module in sequence and is projected onto the target projection area to form a projection pattern.

2. The multi-module projection lamp according to claim 1, characterized in that: It also includes a light-isolating bracket, which is arranged between the substrate and the assembly bracket. The light-isolating bracket has a light-isolating portion, and the light-isolating portion can be used to isolate each focusing lens module to prevent light leakage.

3. The multi-module projection lamp according to claim 2, characterized in that: One end surface of the light-isolating bracket abuts against the substrate, and the other end surface abuts against the assembly bracket and the film.

4. The multi-module projection lamp according to claim 1, characterized in that: It also includes an imaging lens barrel, each imaging lens module is installed in the corresponding imaging lens barrel, the outer side of the imaging lens barrel has an external thread; the inner side of the barrel seat has an internal thread that matches the external thread.

5. The multi-module projection lamp according to claim 1, characterized in that: The film is a non-axisymmetric shape.

6. The multi-module projection lamp according to claim 1, characterized in that: The assembly bracket and the focusing lens module are both matched and connected with the positioning grooves on the base plate through the positioning columns thereon.

7. The multi-module projection lamp according to claim 1, characterized in that: The assembly bracket and the base plate are fixedly connected by fixing screws.

8. A vehicle, characterized in that: It comprises a multi-module projection lamp as described in any one of claims 1-7.

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