Dynamic projection lamp based on multiple patterns and vehicle thereof

Abstract

The utility model provides a dynamic projection lamp based on multiple patterns. The projection lamp comprises a lens cone, a circuit board, a plurality of LED chips, a plurality of collimators, an image bearing medium and a projection lens, a plurality of LED chips are installed on the circuit board, a collimator is arranged on the forward face of each LED chip so that light emitted by each LED chip can be transmitted to the image bearing medium after being reflected by the collimator, different preset patterns are designed at the positions, corresponding to the LED chips, of the image bearing medium, and after the light passes through the preset patterns, the light is transmitted to the image bearing medium through the collimator. And projecting the preset pattern to a preset projection area through the projection lens according to the pattern information carrying the preset pattern. In addition, the utility model provides a vehicle applying the projection lamp.

Description

Technical Field

[0001] The utility model relates to the technical field of projection lamps, in particular to a dynamic projection lamp based on multiple patterns and a vehicle thereof. Background Art

[0002] Existing projectors typically consist of a lens barrel, an LED chip housed within it, a film (or glass) with a fixed image, and a projection lens. The LED chip emits light that shines onto the film (or glass), which then passes through the projection lens and onto the ground or wall. To switch between different images, the film is typically switched within the lens barrel, or multiple independent projector lamps are assembled together.

[0003] However, switching films within the lens barrel involves mechanical components that can become stuck over time. This is particularly true when the projector is used in vehicles (e.g., electric cars, motorcycles, and automobiles), where outdoor vibrations, dust, and moisture can cause the projector to fail, resulting in poor reliability. Assembling multiple independent projector lamps together results in a bulky overall structure and the inclusion of multiple redundant components, leading to high costs. Utility Model Content

[0004] In view of this, the present application provides a dynamic projection lamp based on multiple patterns and a vehicle thereof, so as to realize the projection switching of multiple images without mechanical moving parts, while effectively reducing the volume and cost.

[0005] In the first aspect, the present application provides a dynamic projection lamp based on multiple patterns, which includes a lens barrel and a circuit board, a plurality of LED chips, a plurality of collimators, an image-bearing medium, and a projection lens, which are sequentially arranged inside the lens barrel; the plurality of LED chips are mounted on the circuit board, and a collimator is provided on the front surface of each LED chip so that the light emitted by each LED chip is reflected by the collimator and then transmitted to the image-bearing medium, and the image-bearing medium is designed with different preset patterns at the corresponding position of each LED chip. After the light passes through the preset pattern, it carries the pattern information of the preset pattern through the projection lens, and projects the preset pattern onto a preset projection area.

[0006] Furthermore, the circuit board is provided with a control circuit, and the control circuit is in communication connection with the plurality of LED chips; the control circuit controls the plurality of LED chips to turn on in a time-sharing manner, so as to realize projection switching of a plurality of preset patterns.

[0007] Furthermore, the plurality of collimators are cylindrical, and an inner reflective lens is provided on the inner wall.

[0008] Furthermore, the axial lengths of the plurality of collimators are preset lengths, so that the light emitted by each LED chip can be guided and transmitted to a corresponding position of the image-bearing medium where the preset pattern is set.

[0009] Furthermore, the diameters of the light-entering cross sections of the plurality of collimators are equal to the diameters of the light-emitting cross sections.

[0010] Furthermore, the plurality of collimators are focusing prisms.

[0011] Furthermore, the different preset patterns are arranged in an array on the image bearing medium.

[0012] Furthermore, the image bearing medium is a film sheet or a glass sheet.

[0013] Furthermore, the projection lens is designed with different curvatures at the corresponding position of each LED chip, so that the different preset patterns are all projected into the preset projection area.

[0014] In a second aspect, the present application provides a vehicle, comprising: a vehicle body; and the multi-pattern dynamic projection lamp arranged on the vehicle body.

[0015] The above-mentioned multi-pattern-based dynamic projection lamp and vehicle thereof are provided with multiple preset patterns and multiple LED chips corresponding to the multiple preset patterns, and a collimator is separately provided for each LED chip to guide the light emitted by each LED chip to the corresponding position of the preset pattern set in the image carrying medium. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0017] Figure 1 Schematic diagram of the structure of a projection lamp with a single collimator provided in one embodiment of the present application.

[0018] Figure 2 2 is a schematic structural diagram of a projection lamp integrating multiple collimators provided in one embodiment of the present application.

[0019] Figure 3 It is a schematic structural diagram of a projection lamp with a single focusing prism provided in another embodiment of the present application.

[0020] Figure 4This is a schematic structural diagram of a projection lamp integrating multiple focusing prisms provided in another embodiment of the present application.

[0021] Figure 5 This is a schematic planar structural diagram of various components in a projection lamp provided in one embodiment of the present application.

[0022] Figure 6 This is a front and side reference schematic diagram of a projection lamp provided in an embodiment of the present application performing projection.

[0023] Figure 7 This is a physical picture of a projection lens provided in one embodiment of the present application.

[0024] Figure 8 It is a structural schematic diagram of a vehicle provided in one embodiment of the present application.

[0025] Description of the accompanying drawings:

[0026] Projector lamp 100 Condenser lens 4'

[0027] Lens barrel 1 Image bearing medium 5

[0028] Circuit board 2 preset pattern 51

[0029] Control circuit 21 Projection lens 6

[0030] Several LED chips 3, #1, #2, #3, #4 Car body 200

[0031] Several collimators 4 vehicles 1000

[0032] Internal reflection lens 41 preset projection area C

[0033] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of this application more clear, the present application is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0035] The terms "first," "second," "third," "fourth," and the like (if any) in the specification and claims of this application and in the accompanying drawings are used to distinguish similar program objects and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate. In other words, the described embodiments are implemented according to an order other than that illustrated or described herein. In addition, the terms "including" and "having," and any variations thereof, may also encompass other content. For example, a process, method, system, product, or apparatus comprising a series of steps or units need not be limited to only those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatus.

[0036] It should be noted that the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the said features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0037] A projector lamp is a lighting device designed to project a variety of patterns. Using high-brightness light as a light source and utilizing optical techniques such as reflection and focusing to control and adjust the light, a projector lamp can project images, text, and other content onto surfaces such as walls, floors, and screens. Currently, projector lamps are widely used in various scenarios, such as attracting customers to physical stores, advertising billboards, creating an atmosphere in opera houses, and vehicle decoration. This application will use the application of projector lamps in vehicles as an example.

[0038] Please see Figure 1-2 , Figure 1 Schematic diagram of the structure of a projection lamp with a single collimator provided in one embodiment of the present application. Figure 2It is a structural schematic diagram of a projection lamp with integrated multiple collimators provided in one embodiment of the present application. The present application provides a dynamic projection lamp 100 based on multiple patterns, and the projection lamp 100 includes a lens barrel 1 and a circuit board 2, a plurality of LED chips 3, a plurality of collimators 4, an image-bearing medium 5, and a projection lens 6, which are sequentially arranged inside the lens barrel 1. A plurality of LED chips 3 are mounted on the circuit board 2, and a collimator 4 is provided on the front surface of each LED chip 3 so that the light emitted by each LED chip 3 is reflected by the collimator 4 and then transmitted to the image-bearing medium 5. The front surface of the LED chip 3 refers to the side from which the LED chip 3 emits light, that is, the light-emitting surface of the LED chip 3. A plurality of preset patterns 51 are designed on the image-bearing medium 5, and the plurality of LED chips 3, the plurality of collimators 4, and the plurality of preset patterns 51 are arranged in a one-to-one correspondence. When the projection lamp 100 projects a preset pattern 51, the LED chip 3 corresponding to the preset pattern 51 is turned on, and the light emitted by the LED chip 3 passes through the corresponding collimator 4 to guide the light to the corresponding position where the preset pattern 51 is set in the image carrying medium 5, so that the light carries the pattern information of the preset pattern 51 and projects the preset pattern 51 onto the preset projection area C through the projection lens 6.

[0039] It is understandable that the preset projection area C can be any location on a plane such as a wall, the ground, or a screen. However, since this application uses the example of a projection lamp applied to a vehicle, the preset projection area C is any location on the ground. The preset pattern 51 can be a geometric pattern (such as a circle, square, triangle, etc.), a logo pattern (such as a company logo, brand logo, etc.), a text pattern (such as letters, Chinese characters, numbers, etc.), or a combination of the three, and is not limited here. In addition, since the projection of multiple preset patterns 51 in this application shares components such as the circuit board 2, the image carrier medium 5, and the projection lens 6, it can save materials and reduce the size of the projection lamp.

[0040] Please refer to Figure 5 , Figure 5: This is a schematic diagram of the planar structure of the various components of the projection lamp provided in one embodiment of the present application. The circuit board 2 is provided with a control circuit 21, and a plurality of LED chips 3 are electrically connected to the control circuit 21. The control circuit 21 is used to control the plurality of LED chips 3 to turn on in a time-sharing manner to emit light, thereby realizing the display switching of multiple preset images 51 without the movement of mechanical devices. Specifically, the plurality of LED chips 3 include LED chips ("#1", "#2", "#3", "#4") corresponding one to one with the preset patterns (numbers "1", "2", "3", "4"). When the number "1" needs to be projected, the LED chip "#1" is turned on by the control circuit 21, and the number "1" is projected onto the preset projection area C. When the number "2" needs to be projected, the LED chip "#2" is turned on by the control circuit 21, and the number "2" is projected onto the preset projection area C. The same applies to the numbers "3" and "4".

[0041] A plurality of collimators 4 are disposed around the corresponding LED chips 3 to collimate the light emitted by the plurality of LED chips 3 and transmit it to the image-bearing medium 5. In this embodiment, the plurality of collimators 4 are collimators 4 with internal reflective lenses 41. That is, each collimator 4 is provided with an internal reflective lens 41 on its inner wall near the corresponding LED chip 3, so that the light emitted by each LED chip 3 is reflected by the internal reflective lens 41 and transmitted to the image-bearing medium 5. In this embodiment, the plurality of collimators 4 are cylindrical in shape, and the diameter of the light-entering cross-section of the plurality of collimators 4 is equal to the diameter of the light-exiting cross-section. The regular cross-sectional shape of the plurality of collimators 4 facilitates stable transmission of light within the plurality of collimators 4, reduces the unevenness of the light spots / light bands formed by the light, and thereby avoids visual defects such as blurred patterns, uneven brightness, and pattern deformation projected onto the predetermined projection area C caused by the uneven light spots / light bands, thereby improving the audience's visual experience.

[0042] Furthermore, the axial lengths of the plurality of collimators 4 are predetermined, so that the light emitted by each LED chip 3 can be precisely guided and transmitted to the corresponding location of the predetermined pattern 51 in the image-bearing medium 5. In this embodiment, the predetermined length can be set based on practical circumstances. It is understood that the predetermined length should not be too small, so that the light emitted by each LED chip 3 can be reflected within the collimator 4 and transmitted to the image-bearing medium 5, thereby preventing light leakage. The predetermined length should also not be too large, so as to reduce the number of times the light emitted by each LED chip 3 is reflected within the collimator 4, thereby reducing light transmission losses.

[0043] Please refer to Figure 3-4 , Figure 3 It is a schematic structural diagram of a projection lamp with a single focusing prism provided in another embodiment of the present application. Figure 4is a schematic diagram of the structure of a projection lamp integrating multiple focusing prisms provided in another embodiment of the present application. In other feasible embodiments, the projection lamp 100 may also use a focusing lens 4' instead of the collimator 4 with the internal reflection lens 41 to collimate the light emitted by the LED chip 3. Specifically, the focusing lens 4' is placed between the plurality of LED chips 3 and the image-bearing medium 5 so that the light emitted by each LED chip 3 is refracted into the image-bearing medium 5 through the focusing lens 4'. In addition, the focusing lens 4' is integrally formed, and the focusing lens 4' adopts a different curvature design at the corresponding position of each LED chip 3 to guide the light emitted by all LED chips 3 to the corresponding position of the image-bearing medium 5.

[0044] The number of image bearing medium 5 is one, that is, several LED chips 3 share one image bearing medium 5, but the image bearing medium 5 is designed with different preset patterns 51 at the corresponding position of each LED chip 3. These different preset patterns 51 are arranged in an array on the image bearing medium 5. Figure 5 The image-bearing medium 5 shown in FIG is used as an example. The image-bearing medium 5 is provided with four different preset patterns, namely numbers ("1", "2", "3", and "4"), which are arranged in an array. It is understood that in some other feasible embodiments, the arrangement of the preset patterns 51 can also be flexibly selected according to the specific application scenario, design requirements, and technical implementation capabilities. The arrangement of the preset patterns 51 can also be a linear arrangement, a special shape arrangement (such as a circle, a heart shape, an animal shape), etc.

[0045] Please refer to Figure 6-7 , Figure 6 This is a front and side reference schematic diagram of a projection lamp provided in an embodiment of the present application performing projection. Figure 7 This is a physical image of a projection lens provided in one embodiment of the present application. The projection lens 6 is integrally formed and features a different curvature design at the location corresponding to each LED chip 3, allowing different preset patterns 51 to be projected onto the preset projection area C. It is understood that in this application, different preset patterns 51 are projected onto the same preset projection area C in a time-sharing manner. In other feasible embodiments, multiple projection lenses 6 may be provided, each corresponding to a number of LED chips 3, with the curvature of each projection lens 6 designed specifically for the corresponding LED chip 3.

[0046] Please refer to Figure 8 , Figure 8: is a schematic structural diagram of a vehicle provided in one embodiment of the present application. The present application provides a vehicle 1000, which includes a vehicle body 200 and a multi-pattern dynamic projection lamp 100 provided on the vehicle body 200. The vehicle 1000 may be an electric vehicle, a motorcycle, a car, etc., which is not limited here. It can be understood that since the projection lamp 100 of the present application does not require mechanical moving parts, it can effectively avoid the situation where the vehicle 1000 fails due to outdoor bumps, dust, water vapor, etc., that is, the projection lamp 100 of the present application has better reliability. In addition, the specific structure of the projection lamp 100 has been described in detail in the previous text and will not be repeated here.

[0047] In the above embodiment, multiple preset patterns and corresponding LED chips are provided. A collimator is provided for each LED chip to guide the light emitted by each LED chip to the corresponding position of the preset pattern on the image-bearing medium. Simultaneously, the projection lens employs a different curvature design at the corresponding position of each LED chip, ensuring that the multiple preset patterns are projected onto the same preset projection area. Furthermore, a control circuit time-sharingly controls the activation of the multiple LED chips, enabling simultaneous switching of projections of multiple preset images without mechanically moving components, resulting in excellent reliability.

[0048] The above are only preferred embodiments of the present invention, but do not limit the scope of the patent of the present invention. Although the present invention has been described in detail with reference to the above embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the above embodiments or to replace some of the technical features therein with equivalents. Any equivalent structure made by using the contents of the present invention specification and drawings, directly or indirectly applied to other related technical fields, shall also fall within the scope of protection of the present invention patent.

Claims

1. A dynamic projection lamp based on multiple patterns, characterized in that: The projection lamp includes a lens barrel and a circuit board, a plurality of LED chips, a plurality of collimators, an image-bearing medium, and a projection lens, which are sequentially arranged inside the lens barrel; the plurality of LED chips are mounted on the circuit board, and a collimator is provided on the front surface of each LED chip so that the light emitted by each LED chip is reflected by the collimator and then transmitted to the image-bearing medium. The image-bearing medium is designed with different preset patterns at the corresponding position of each LED chip. After the light passes through the preset pattern, it carries the pattern information of the preset pattern and passes through the projection lens, projecting the preset pattern onto a preset projection area.

2. The multi-pattern based dynamic projection lamp according to claim 1, characterized in that: The circuit board is provided with a control circuit, and the control circuit is in communication connection with the plurality of LED chips; the control circuit controls the plurality of LED chips to turn on in a time-sharing manner, so as to realize projection switching of a plurality of preset patterns.

3. The multi-pattern based dynamic projection lamp according to claim 1, characterized in that: The collimators are cylindrical, and inner reflection lenses are arranged on the inner walls.

4. The multi-pattern based dynamic projection lamp according to claim 3, characterized in that: The axial lengths of the plurality of collimators are preset lengths, so that the light emitted by each LED chip can be guided and transmitted to the corresponding position of the image-bearing medium where the preset pattern is set.

5. The multi-pattern based dynamic projection lamp according to claim 4, characterized in that: The diameters of the light-entering cross sections of the plurality of collimators are equal to the diameters of the light-emitting cross sections.

6. The multi-pattern based dynamic projection lamp according to claim 1, characterized in that: The plurality of collimators are focusing prisms.

7. The multi-pattern based dynamic projection lamp according to claim 1, characterized in that: The different preset patterns are arranged in an array on the image bearing medium.

8. The multi-pattern based dynamic projection lamp according to claim 7, characterized in that: The image bearing medium is a film sheet or a glass sheet.

9. The multi-pattern based dynamic projection lamp according to claim 1, characterized in that: The projection lens is designed with different curvatures at the corresponding position of each LED chip, so that the different preset patterns are all projected onto the preset projection area.

10. A vehicle, characterized in that: The vehicle comprises: body; and A multi-pattern dynamic projection lamp as described in any one of claims 1-9 is arranged on the vehicle body.

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