A dynamic pattern projection lamp

Abstract

A dynamic pattern projection light is disclosed. In use, the first opening on the main body is aligned with a designated position. Light emitted from the light-emitting unit is sequentially focused by a condenser lens assembly, imaged by a pattern sheet assembly, and modulated by an optical modulation sheet. A static pattern is then projected through the first opening. Subsequently, a driving unit rotates the optical modulation sheet, causing a dynamic, floating pattern to be projected. This solution achieves physical deformation and floating of the static pattern by rotating a single optical modulation sheet, unlike existing technologies that rely on mechanical displacement or multiple light sources. Existing technologies employ dual-light source systems, while this solution requires only one light-emitting unit, reducing the number of optical components. Existing technologies use mechanically rolling projection lenses, while this solution uses a fixed projection lens, driving only the optical modulation sheet to rotate, thus reducing energy consumption. The pattern sheet assembly is detachable and replaceable without disassembling the main body. In summary, this dynamic pattern projection light resolves the contradiction between complex structure and insufficient dynamic expression in dynamic pattern projection lights.

Description

Technical Field

[0001] This utility model relates to the field of lighting equipment technology, specifically a dynamic pattern projection lamp. Background Technology

[0002] Lighting is an important means of decorating and beautifying the environment and creating an artistic atmosphere. In order to decorate interior spaces, increase spatial layers, and enhance the atmosphere, decorative lighting is increasingly used. Dynamic pattern spotlights are an important type of this. These lights can be used not only for interior decoration but also for performance stages and other venues, creating a lively and joyful atmosphere.

[0003] Existing dynamic pattern projectors mainly suffer from two types of technical defects:

[0004] Complex structures lead to high costs: For example, Chinese invention patent CN106871067B discloses a projector with a floating light effect. This patent uses a dual light source system (first light-emitting component + second light-emitting component) to generate background light and pattern light respectively. It requires multiple optical components such as lens ring and corrugated refracting transparent lens, resulting in complicated assembly process and high power consumption. Similarly, Chinese invention patent CN105698063B discloses a swinging slide-type projector. This patent relies on a motor to drive an eccentric gear to achieve mechanical swinging, which increases the risk of transmission component failure.

[0005] Limited dynamic effects: For example, Chinese utility model patent CN207440510U discloses a projection lamp that projects a rolling pattern. This patent moves the pattern by rotating the projection lens assembly, but it can only achieve linear displacement and cannot simulate natural drifting or wave deformation effects. Chinese utility model patent CN210241423U discloses a projection assembly that can project a starry sky pattern. Although the pattern wheel switching scheme of this patent can change the pattern, the projection effect is still static.

[0006] Therefore, there is an urgent need to design a dynamic pattern projection light that can achieve a wave-like dynamic effect of a pattern with a simplified architecture of a single light source and a single pattern piece, while maintaining low cost and high reliability. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] To address the above problems, this utility model provides a dynamic pattern projection light, which resolves the contradiction between the complex structure (multiple light sources / multiple transmission components) and insufficient dynamic expressiveness (only displacement without deformation) of existing dynamic pattern projection lights.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] A dynamic pattern projector, comprising:

[0012] The main body has a first opening and an internal cavity;

[0013] A light-emitting unit is disposed inside the main body and its light path faces the first opening;

[0014] A condenser lens assembly is disposed inside the main body and includes a first condenser lens group and a second condenser lens group arranged sequentially along the optical path. The first condenser lens group includes at least one first condenser lens, and the second condenser lens group includes at least one second condenser lens, for converging the light emitted by the light-emitting unit.

[0015] A patterned sheet assembly, which is detachably disposed between the first condenser lens group and the second condenser lens group;

[0016] An optical modulation sheet is located downstream of the pattern sheet assembly in the optical path. The optical modulation sheet is located between the pattern sheet assembly and the second condenser lens group. The surface of the optical modulation sheet is provided with an uneven lens or prism structure.

[0017] A driving unit, which drives and is connected to the optical modulation sheet, and can drive the optical modulation sheet to rotate;

[0018] The light emitted by the light-emitting unit is sequentially focused by a condenser lens assembly, imaged by a pattern sheet assembly, and modulated by a rotating optical modulation sheet before being projected through the first opening of the main body to create a dynamically floating pattern.

[0019] Preferably, the main body comprises:

[0020] A housing, wherein the housing is provided with a second opening and a first connector, and the first connector is provided with a first toothed disc;

[0021] A first cover body is detachably connected to a second opening in the housing, and the first opening is provided on the first cover body;

[0022] A transparent lens is disposed between the housing and the first cover.

[0023] The mounting base has a second connector on it, and the second connector has a second toothed disc that meshes with the first toothed disc. The second connector is detachably connected to the first connector so that the relative angle between the housing and the mounting base is adjustable.

[0024] Preferably, the light-emitting unit includes an LED aluminum substrate disposed within the main body and at least one LED lamp bead disposed on the aluminum substrate.

[0025] Preferably, the main body is detachably connected to a bracket assembly, which includes a first bracket for fixing a first condenser lens group and a second bracket for fixing a second condenser lens group, and the first bracket and the second bracket are locked together by pins.

[0026] Preferably, the first bracket is provided with a protrusion, the protrusion is provided with a through hole, the first condensing lens assembly includes two first condensing lenses and both are housed inside the through hole, the protrusion abuts against the LED aluminum substrate and the LED lamp bead is located inside the through hole.

[0027] Preferably, the driving unit is a motor with a transmission shaft, the motor is fixedly attached to the LED aluminum substrate, and the transmission shaft passes through the LED aluminum substrate and the first bracket in sequence before being fixedly connected to the optical modulation sheet.

[0028] Preferably, the main body is provided with a third opening, the extension direction of the third opening intersects the extension direction of the first opening, the pattern piece assembly can be inserted into the third opening and positioned in the optical path between the first condenser lens group and the optical modulation sheet, and a second cover is provided at the third opening to fix the relative position of the pattern piece assembly and the main body.

[0029] Preferably, the pattern sheet assembly includes a film base, a film sheet located on one side of the film base, and a film cover covering the film sheet and detachably connected to the film base. Both the film cover and the film base are hollow frames to expose the film sheet to the light path.

[0030] Preferably, the optical modulation sheet is a transparent or semi-transparent corrugated sheet, and the surface concave-convex structure of the optical modulation sheet includes at least one optical element selected from convex lenses, concave lenses, and prisms.

[0031] Preferably, when the optical modulation sheet rotates, the uneven surface structure of the optical modulation sheet can cause the light passing through the film to change the refraction angle, and form a floating pattern and wave deformation effect.

[0032] (III) Beneficial Effects

[0033] Compared with the prior art, the beneficial effects of this utility model are:

[0034] Dynamic effect innovation: Static patterns are made to move physically by rotating a single optical modulation sheet, which is different from the mechanical displacement or multi-light source mixing of existing technologies;

[0035] Structural simplification:

[0036] Comparative document 1 (CN106871067B) uses a dual-light source system, while this solution only requires one LED aluminum substrate and one set of condenser lens assembly, reducing optical components by 50%.

[0037] Compared to the mechanical rolling of the projection lens in document 2 (CN207440510U), this solution fixes the projection lens (i.e., the condenser lens assembly) and only drives the optical modulation sheet to rotate, thus reducing energy consumption.

[0038] Easy maintenance: The pattern piece components are detachable (plug-in) and replaceable without disassembling the main body. Attached Figure Description

[0039] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0040] Figure 1 A perspective view of the dynamic pattern projection lamp of this utility model is shown;

[0041] Figure 2 It shows Figure 1 A schematic diagram of the exploded structure of a dynamic pattern projection light;

[0042] Figure 3 It shows Figure 1 A sectional perspective view of a vertical section of a dynamic pattern projection light;

[0043] Figure 4 It shows Figure 1 A three-dimensional view of the dynamic pattern projector from another angle;

[0044] Figure 5 It shows Figure 4 A schematic diagram of the exploded structure of a dynamic pattern projection light;

[0045] Figure 6 It shows Figure 4 Enlarged view of part A in the image;

[0046] Figure 7 It shows Figure 1 A 3D view of the dynamic pattern projection light after the main structure has been removed;

[0047] Figure 8 It shows Figure 7 A schematic diagram of the exploded structure;

[0048] Figure 9 It shows Figure 7 A sectional perspective view of a vertical section.

[0049] In the diagram: 1. Main body; 11. First opening; 12. Shell; 121. Second opening; 122. First connector; 123. First gear; 13. First cover; 14. Transparent lens; 15. Mounting base; 151. Second connector; 152. Second gear; 16. Third opening; 17. Second cover; 2. Light-emitting unit; 21. LED aluminum substrate; 22. LED beads; 3. Condensing lens assembly; 31. First condensing lens group; 32. Second condensing lens group; 4. Pattern sheet assembly; 41. Film base; 42. Film; 43. Film cover; 5. Optical modulation sheet; 6. Drive unit; 61. Motor; 611. Drive shaft; 7. Bracket assembly; 71. First bracket; 72. Second bracket; 73. Pin; 74. Protrusion; 741. Through hole. Detailed Implementation

[0050] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0051] See appendix Figure 1 Appendix Figure 3 and attached Figure 7 This utility model discloses a dynamic pattern projection lamp, whose basic structure is as follows: a main body 1, a light-emitting unit 2, a condenser lens assembly 3, a pattern sheet assembly 4, an optical modulation sheet 5, and a driving unit 6. The main body 1 has a first opening 11 and an internal cavity; the light-emitting unit 2 is located inside the main body 1 and its light path faces the first opening 11; see attached figure. Figure 3 Appendix Figure 8 and attached Figure 9 The focusing lens assembly 3 is located inside the main body 1 and includes a first focusing lens group 31 and a second focusing lens group 32 arranged sequentially along the optical path. The first focusing lens group 31 includes at least one first focusing lens 311, and the second focusing lens group 32 includes at least one second focusing lens 321; used to focus the light emitted by the light-emitting unit 2; see appendix. Figure 3 and appendix Figure 7 - Appendix Figure 9 The pattern piece assembly 4 is detachably disposed between the first condenser lens group 31 and the second condenser lens group 32; see appendix. Figure 3 and attached Figure 9 The optical modulation sheet 5 is located downstream of the pattern sheet assembly 4 in the optical path, between the pattern sheet assembly 4 and the second condenser lens group 32. The surface of the optical modulation sheet 5 is provided with an uneven lens or prism structure; see appendix. Figure 3 and attached Figure 9 The drive unit 6 drives the optical modulation sheet 5, which is connected to the drive unit and can drive the optical modulation sheet 5 to rotate.

[0052] In practical use, the first opening 11 on the main body 1 is aligned with a designated location, such as a wall. The light-emitting unit 2 is turned on, and the light emitted by the light-emitting unit 2 is converged by the condensing lens assembly 3 (first condensing lens group 31, second condensing lens group 32), imaged by the pattern sheet assembly 4, and modulated by the optical modulation sheet 5. The light is then projected onto the wall through the first opening 11 of the main body 1 to form a static pattern. After that, the driving unit 6 is turned on to drive the optical modulation sheet 5 to rotate, which can transform the static pattern into a dynamic floating pattern. In this solution, the static pattern is physically deformed and floated by rotating only the single optical modulation sheet 5, which is different from the mechanical displacement of the prior art. Alternatively, multiple light sources can be combined; comparative document 1 (CN106871067B) uses a dual-light source system, while this solution only requires one light-emitting unit 2, reducing optical components by 50%; comparative document 2 (CN207440510U) uses a mechanically rolling projection lens, while this solution fixes the projection lens (i.e., the condenser lens assembly 3) and only drives the optical modulation sheet 5 to rotate, reducing energy consumption; the pattern sheet assembly 4 is detachable and replaceable without disassembling the main body; in general, by using this dynamic pattern projection lamp, the contradiction between the complex structure (multiple light sources / multiple transmission components) and insufficient dynamic performance (only displacement without deformation) of the existing dynamic pattern projection lamps is solved.

[0053] Furthermore, the generation mechanism of the above-mentioned "dynamic floating pattern" is as follows: the surface of the optical modulation sheet 5 is provided with concave and convex lenses or prism structures (such as a combination of convex and concave lenses), which causes the light passing through the pattern sheet assembly to undergo continuous changes in the refraction angle when rotated, thereby producing floating and wave deformation.

[0054] See appendix Figure 1 - Appendix Figure 6 To address the issue of poor installation adaptability caused by the fixed projection angle of the projector, this embodiment incorporates the following design: Specifically, the main body 1 includes a housing 12, a first cover 13, a transparent lens 14, and a mounting base 15. The housing 12 has a second opening 121 and a first connector 122, with a first gear 123 mounted on the first connector 122. The first cover 13 is detachably connected to the second opening 121 of the housing 12, with the first opening 11 located on the first cover 13. The transparent lens 14 is positioned between the housing 12 and the first cover 13. The mounting base 15 has a second connector 151, with a second gear 152 engaging the first gear 123. The second connector 151 is detachably connected to the first connector 122, allowing the relative angle between the housing 12 and the mounting base 15 to be adjustable.

[0055] Based on the above scheme, the housing 12 and the mounting base 15 achieve rotational locking within a 360° range through gear meshing (first gear 123 and second gear 152), thereby adjusting the projection direction of the pattern. For example, when the detachable connection between the second connector 151 and the first connector 122 is a threaded connection, the bolts can be loosened to separate the first gear 123 and the second gear 152 from each other, and then rotated to a specified angle. After tightening the bolts, the angle adjustment between the housing 12 and the mounting base 15 can be completed, thus completing the adjustment of the pattern projection direction.

[0056] Furthermore, hooks, connecting holes, and other connecting structures can be provided on the mounting base 15 to enable it to be installed on a wall or the ground.

[0057] See appendix Figure 3 and appendix Figure 7 - Appendix Figure 9 There are many types of devices that can emit light. In this embodiment, one type is described. Specifically, the light-emitting unit 2 includes an LED aluminum substrate 21 disposed in the main body 1 and at least one LED lamp bead 22 disposed on the aluminum substrate 21.

[0058] Through the above structural design, light can be emitted through the LED beads 22. In addition, the aluminum substrate 21 not only has the function of circuit carrying, but also has the function of heat conduction, resulting in better heat dissipation.

[0059] See appendix Figure 2 Appendix Figure 3 and attached Figure 9 To address the optical path misalignment caused by lens group misalignment, the following design is implemented in this embodiment. Specifically, a bracket assembly 7 is detachably connected inside the main body 1. The bracket assembly 7 includes a first bracket 71 for fixing the first condensing lens group 31 and a second bracket 72 for fixing the second condensing lens group 32. The first bracket 71 and the second bracket 72 are locked together by pins 73. The first bracket 71 is provided with a protrusion 74, and the protrusion 74 is provided with a through hole 741. The first condensing lens assembly 31 includes two first condensing lenses 311, both of which are housed inside the through hole 741. The protrusion 74 abuts against the LED aluminum substrate 21, and the LED lamp bead 22 is located inside the through hole 741.

[0060] The design of the first bracket 71 and the second bracket 72 in the above structure can ensure that the LED lamp bead 22, the first condenser lens group 31 and the second condenser lens group 32 are coaxial, preventing the lens group from shifting and causing the light path to become inaccurate. In addition, since the protrusion 74 abuts against the LED aluminum substrate 21 and the LED lamp bead 22 is located inside the through hole 741, it can also prevent light diffusion and facilitate light convergence.

[0061] See appendix Figure 3 and attached Figure 9In order to reduce the energy consumption generated during the rotation of the optical modulator 5, the following design is made in this embodiment. Specifically, the drive unit 6 is a motor 61 with a drive shaft 611. The motor 61 is tightly fixed to the LED aluminum substrate 21. The drive shaft 611 passes through the first bracket 71 of the LED aluminum substrate 21 and is then fixedly connected to the optical modulator 5.

[0062] With the above-described structure, compared to the gear transmission system in prior art document 3 (CN206846515U), the motor 61 in this application can directly drive the optical modulation sheet 5, thereby reducing transmission losses.

[0063] Furthermore, the dynamic pattern projection light also includes a driver board, and the light-emitting unit 2 and the driver board are electrically connected to the driver unit 6 for independently controlling the on / off state of the LED beads 22 and the rotation speed of the motor 61.

[0064] See appendix Figure 2 Appendix Figure 3 and attached Figure 9 To facilitate the assembly and disassembly of the pattern piece assembly 4, the following design is implemented in this embodiment: Specifically, the main body 1 is provided with a third opening 16, the extension direction of the third opening 16 and the extension direction of the first opening 11 intersect each other, the pattern piece assembly 4 can be inserted into the third opening 16 and positioned in the optical path between the first condenser lens group 31 and the optical modulation sheet 5, and a second cover 17 is provided at the third opening 16 to fix the relative position of the pattern piece assembly 4 and the main body 1.

[0065] Based on the above solution, the pattern piece component 4 can be installed and removed by plugging and unplugging. Compared with the existing technology that requires disassembling and assembling the outer shell, the technical solution in this application is more convenient and faster, and facilitates quick disassembly, replacement and maintenance.

[0066] It should be noted that the above-mentioned "light path" refers to the path through which the light emitted by the light-emitting unit 2 propagates. Based on the above scheme, the specific path of the light path is as follows: light-emitting unit 2 (LED lamp bead 22) → first condenser lens group 31 → pattern sheet assembly 4 (film 42) → optical modulation sheet 5 → second condenser lens group 32 → first opening 11.

[0067] See appendix Figure 7 - Appendix Figure 9 To avoid light shading in parts of the pattern sheet assembly 4, the following design is implemented in this embodiment. Specifically, the pattern sheet assembly 4 includes a film base 41, a film sheet 42 located on one side of the film base 41, and a film cover 43 covering the film sheet 42 and detachably connected to the film base 41. Both the film cover 43 and the film base 41 are hollow frames to expose the film sheet 42 to the light path.

[0068] Furthermore, the film base 41 and film cover 43 can be made to contact the film 42 only at their edges, thus exposing the entire central area and improving light transmittance.

[0069] See appendix Figure 3 Appendix Figure 8 and attached Figure 9 In order to clarify the mechanism of the dynamic pattern generated by the optical modulation sheet 5, the following design was carried out in this embodiment. Specifically, the optical modulation sheet 5 is a transparent or semi-transparent corrugated sheet. The surface concave-convex structure of the optical modulation sheet 5 includes at least one optical element among a convex lens, a concave lens, and a prism. When the optical modulation sheet 5 rotates, the surface concave-convex structure of the optical modulation sheet 5 can cause the light passing through the film 42 to change the refraction angle and form the floating and wave deformation effect of the pattern.

[0070] The principle of the change in refraction angle in the above scheme is as follows: when light passes through the concave and convex structure on the surface of the corrugated sheet (optical modulation sheet 5), the convex lens area converges the light and magnifies the pattern locally, the concave lens area diverges the light and shrinks the pattern locally, and the prism area deflects the light and deforms the pattern, forming dynamic compression-stretch deformation, thereby creating a floating and wave-like deformation effect in the pattern.

[0071] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0072] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0073] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dynamic pattern projection lamp characterized by, include: The main body has a first opening and an internal cavity; A light-emitting unit is disposed inside the main body and its light path faces the first opening; A condenser lens assembly is disposed inside the main body and includes a first condenser lens group and a second condenser lens group arranged sequentially along the optical path. The first condenser lens group includes at least one first condenser lens, and the second condenser lens group includes at least one second condenser lens, for converging the light emitted by the light-emitting unit. A patterned sheet assembly, which is detachably disposed between the first condenser lens group and the second condenser lens group; An optical modulation sheet is located downstream of the pattern sheet assembly in the optical path. The optical modulation sheet is located between the pattern sheet assembly and the second condenser lens group. The surface of the optical modulation sheet is provided with an uneven lens or prism structure. A driving unit, which drives and is connected to the optical modulation sheet, and can drive the optical modulation sheet to rotate; The light emitted by the light-emitting unit is sequentially focused by a condenser lens assembly, imaged by a pattern sheet assembly, and modulated by a rotating optical modulation sheet before being projected through the first opening of the main body to create a dynamically floating pattern.

2. A dynamic pattern projection lamp according to claim 1, characterized in that The subject includes: A housing, wherein the housing is provided with a second opening and a first connector, and the first connector is provided with a first toothed disc; A first cover body is detachably connected to a second opening in the housing, and the first opening is provided on the first cover body; A transparent lens is disposed between the housing and the first cover. The mounting base has a second connector on it, and the second connector has a second toothed disc that meshes with the first toothed disc. The second connector is detachably connected to the first connector so that the relative angle between the housing and the mounting base is adjustable.

3. A dynamic pattern projection lamp according to claim 1, wherein The light-emitting unit includes an LED aluminum substrate disposed within the main body and at least one LED lamp bead disposed on the aluminum substrate.

4. A dynamic pattern projection lamp according to claim 3, wherein The main body is internally detachably connected to a bracket assembly, which includes a first bracket for fixing a first condenser lens group and a second bracket for fixing a second condenser lens group. The first bracket and the second bracket are locked together by pins.

5. A dynamic pattern projection lamp according to claim 4, wherein The first bracket is provided with a protrusion, and the protrusion is provided with a through hole. The first condensing lens assembly includes two first condensing lenses, both of which are housed inside the through hole. The protrusion abuts against the LED aluminum substrate, and the LED lamp bead is located inside the through hole.

6. A dynamic pattern projection lamp according to claim 4, wherein, The drive unit is a motor with a transmission shaft. The motor is fixedly attached to the LED aluminum substrate. The transmission shaft passes through the LED aluminum substrate and the first bracket in sequence and is then fixedly connected to the optical modulation sheet.

7. A dynamic pattern projection lamp according to claim 1, wherein The main body is provided with a third opening, the extension direction of the third opening intersects the extension direction of the first opening, the pattern piece assembly can be inserted into the third opening and positioned in the optical path between the first condenser lens group and the optical modulation sheet, and a second cover is provided at the third opening to fix the relative position of the pattern piece assembly and the main body.

8. A dynamic pattern projection lamp according to claim 7, wherein, The pattern sheet assembly includes a film base, a film sheet located on one side of the film base, and a film cover that covers the film sheet and is detachably connected to the film base. Both the film cover and the film base are hollow frames to expose the film sheet to the light path.

9. A dynamic pattern projection lamp according to any one of claims 1-8, characterized in that The optical modulation sheet is a transparent or semi-transparent corrugated sheet, and the surface concave-convex structure of the optical modulation sheet includes at least one optical element selected from convex lenses, concave lenses, and prisms.

10. A dynamic pattern projection lamp according to claim 9, wherein, When the optical modulation sheet rotates, the uneven surface structure of the optical modulation sheet can cause the light passing through the film to change the refraction angle, and form a floating pattern and wave deformation effect.

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