Prism structure, prism module and stage lamp

Abstract

The present application relates to a kind of prism structure, prism module and stage lamp, including the prism main body with light entrance surface and light exit surface, light entrance surface is made of several uniform distribution fan surface, fan surface is mainly surrounded by two radial length and an arc length, the vertex of the central angle θ between two radial length is formed, the vertex of the central angle θ of each fan surface coincides, the arc length from the vertex of the central angle θ towards radial outer direction is inclined from high to low, so that the middle part of light entrance surface is high, and the periphery is low, light entrance surface or / and light exit surface is provided with atomization structure layer.Compared with prior art, the present application has the following advantages: eliminating the cost of independent atomization sheet material, reducing assembly process, reducing labor cost, avoiding atomization sheet replacement maintenance cost;Integrated design reduces light path interference, reduces stray light, improves light energy utilization rate and atomization uniformity;Cancel the installation space of atomization sheet, volume is reduced, and the overall structure is more compact.

Description

Technical Field

[0001] This invention relates to the field of lighting technology, and more particularly to a prism structure, a prism module, and a stage light. Background Technology

[0002] Existing optical decorative devices (such as kaleidoscopes, ambient lights, projection lights, stage lights, etc.) typically employ a combination of a light source, pattern pieces, lenses, prisms, and individual fogging sheets to produce dynamic light spots and fogging effects. The basic principle is that light emitted from the light source forms a specific pattern through the pattern piece, is then focused by the lens and refracted by the prism, forming a symmetrical kaleidoscope-like light spot. Finally, the light spot is scattered by the fogging sheet, resulting in a soft, foggy effect. However, existing technical solutions have the following problems: Additional consumable costs: Atomizing plates are usually made of frosted glass, atomizing films, or diffraction elements, which are consumable parts. They are prone to aging, scratching, or contamination under long-term use or in high temperature and humidity environments, requiring regular replacement and increasing usage costs.

[0003] Light efficiency loss: Independent atomizing plates need to be installed separately in the optical path. The light has to pass through different medium interfaces multiple times, resulting in light energy loss, reducing the overall brightness, and may introduce stray light, affecting the clarity of the pattern.

[0004] Complex structure: The atomizing plate needs to be fixed separately, which increases the size of the optical system and the assembly difficulty, and is not conducive to the miniaturization and lightweight design of the product.

[0005] Some existing solutions attempt to integrate the fogging function into the lens, but since the primary function of a lens is to focus light, surface fogging can affect its optical accuracy, leading to distortion or blurring of the kaleidoscope pattern. Furthermore, traditional prisms are only used for light splitting and refraction, and their surface optical properties are not fully utilized to optimize the fogging effect.

[0006] Therefore, it is necessary to propose an improved solution that can directly achieve the atomization effect by optimizing the prism structure without adding an additional atomizing plate, thereby reducing costs, simplifying the structure and improving optical efficiency. Summary of the Invention

[0007] To solve one of the above-mentioned technical problems, this invention provides a prism structure, a prism module, and a stage light, which directly achieves a fogging effect by optimizing the prism structure, thereby reducing costs, simplifying the structure, and improving optical efficiency.

[0008] To solve the above-mentioned technical problems, the present invention provides the following technical solution: A prism structure includes a prism body having an incident light surface and an exit light surface. The incident light surface is composed of several uniformly distributed fan-shaped surfaces. Each fan-shaped surface is mainly surrounded by two radial sides and one arc side. A central angle θ is formed between the two radial sides. The vertices of the central angle θ of each fan-shaped surface coincide. The arc side slopes from high to low in the radial outward direction from the vertex of the central angle θ, making the center of the incident light surface high and the surrounding area low. The incident light surface and / or the exit light surface are provided with a fogging structure layer.

[0009] It is further defined that the center point of the light-emitting surface and the vertices of each of the fan-shaped surfaces are located on the same axis.

[0010] Further defined, the light-emitting surface is a plane.

[0011] A prism module includes a substrate, a bearing rotatably mounted on the substrate, and a prism structure. The prism structure includes a prism body, which is fixed to the bearing and can rotate with the bearing.

[0012] Further defined, the outer periphery of the bearing seat is provided with transmission teeth, and the substrate is provided with a transmission wheel assembly for connecting with the output shaft of the drive motor. The drive motor meshes with the transmission teeth of the bearing seat through the transmission wheel assembly, thereby driving the prism body to cut into or out of the optical path.

[0013] A stage light has a light source, a first set of lenses, a pattern piece assembly, a second set of lenses, a prism module, and a third set of lenses arranged sequentially in its optical path.

[0014] By adopting the above technical solution, the present invention has at least the following beneficial effects: Compared with the prior art, the present application has the following advantages: (1) Cost optimization: eliminates the material cost of independent atomizing sheet, reduces assembly process, reduces labor cost, and avoids the cost of replacing and maintaining atomizing sheet; (2) Improved optical performance: integrated design reduces optical path interference, reduces stray light, and improves light energy utilization and atomization uniformity; (3) Structural optimization: eliminates the atomizing sheet installation space, reduces volume, and makes the overall structure more compact. Attached Figure Description

[0015] Figure 1 It is a prism structure Figure 1 ; Figure 2 It is a prism structure Figure 2 ; Figure 3 This is a cross-sectional view of the prism body; Figure 4 This is a structural diagram of the prism module; Figure 5 This is a diagram of the stage lighting system. Detailed Implementation

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] In the description of this invention, it should be understood that the terms "center," "middle," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0018] As attached Figure 1 To be continued Figure 3 As shown, a prism structure includes a prism body 1 having an incident light surface 100 and an exit light surface 101. The incident light surface 100 is composed of several uniformly distributed fan-shaped surfaces 11. Each fan-shaped surface 11 is mainly surrounded by two radial sides 111 and one arc side 112. A central angle θ is formed between the two radial sides 111. The vertices 113 of the central angle θ of each fan-shaped surface 11 coincide. The arc side 112 slopes from high to low from the vertex 113 of the central angle θ in a radially outward direction, making the incident light surface 100 high in the middle and low around the edges. The exit light surface 101 is planar. The incident light surface 100 and / or the exit light surface 101 are provided with an atomizing structure layer 10. Preferably, the exit light surface 101 is provided with an atomizing structure layer 10, as shown in the attached figure. Figure 3 As shown; of course, we can also choose to provide an atomizing structure layer 10 on the light-incident surface 100. The atomizing structure layer 10 has a rough surface with unevenness, or the atomizing structure layer 10 can be provided on both the light-incident surface 100 and the light-exit surface 101 (not shown here).

[0019] The prism body 1 of this application is provided with an atomizing structure layer 10, which abandons the traditional atomizing sheet. Compared with the prior art, the solution of this application has the following advantages: 1. Cost optimization: Eliminates the material cost of the independent atomizing sheet, reduces assembly process, reduces labor cost, and avoids the cost of replacing and maintaining the atomizing sheet; 2. Improved optical performance: The integrated design reduces optical path interference, reduces stray light, and improves light energy utilization and atomization uniformity; 3. Structural optimization: Eliminates the installation space of the atomizing sheet, reduces volume, and makes the overall structure more compact.

[0020] In this embodiment, the center point of the light-emitting surface 101 and the vertex 113 of each of the fan-shaped surfaces 11 are located on the same axis, thereby ensuring that the light is uniformly radiated from the center of the prism to each fan-shaped surface 11, avoiding light spot distortion caused by off-axis refraction, and improving the symmetry and geometric accuracy of the kaleidoscope pattern, so that the light spot distribution is more in line with the design expectations.

[0021] As attached Figure 4 As shown, a prism module includes a substrate 21, a bearing 22 rotatably disposed on the substrate 21, and the prism structure. The prism structure includes a prism body 1, which is fixed on the bearing 22 and can rotate with the bearing 22 to achieve a dynamic effect of a kaleidoscope pattern.

[0022] To further elaborate, the outer periphery of the bearing seat 22 is provided with transmission teeth, and the base plate 21 is provided with a transmission wheel assembly 24 for connecting with the output shaft of the drive motor 23. The drive motor 23 meshes with the transmission teeth of the bearing seat 22 through the transmission wheel assembly 24, thereby realizing automatic control and driving the prism body 1 to cut into or out of the optical path.

[0023] A stage light, as shown in the attached image Figure 5 As shown, the light path of the stage light consists of a light source 3, a first set of lenses 4, a pattern piece assembly 5, a second set of lenses 6, a prism body in the prism module, and a third set of lenses 7, which together form the light path system of the stage light, thereby creating rich and colorful light and shadow effects and enhancing the stage rendering.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various equivalent changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prism structure comprising a prism body (1) having an incident surface (100) and an exit surface (101), wherein the incident surface (100) is composed of a plurality of uniformly distributed sector surfaces (11), each sector surface (11) being mainly enclosed by two radial side lengths (111) and one arc side length (112), a central angle θ being formed between the two radial side lengths (111), the vertices (113) of the central angle θ of each sector surface (11) coinciding, and the arc side length (112) sloping from high to low in the radially outward direction from the vertex (113) of the central angle θ, such that the incident surface (100) is high in the middle and low around the edges, characterized in that, The light-incident surface (100) and / or the light-exit surface (101) are provided with an atomizing structure layer (10).

2. The prism structure according to claim 1, characterized in that, The center point of the light-emitting surface (101) and the apex (113) of each of the fan-shaped surfaces (11) are located on the same axis.

3. The prism structure according to claim 1, characterized in that, The light-emitting surface (101) is a plane.

4. A prism module, characterized in that, It includes a substrate (21), a bearing seat (22) rotatably disposed on the substrate (21), and a prism structure according to any one of claims 1 to 3. The prism structure includes a prism body (1), which is fixed on the bearing seat (22) and can rotate with the bearing seat (22).

5. The prism module according to claim 4, characterized in that, The outer periphery of the bearing seat (22) is provided with transmission teeth, and the base plate (21) is provided with a transmission wheel assembly (24) for connecting with the output shaft of the drive motor (23). The drive motor (23) meshes with the transmission teeth of the bearing seat (22) through the transmission wheel assembly (24) to drive the prism body (1) to cut into or out of the optical path.

6. A stage light, characterized in that, The light source (3), the first group of lenses (4), the pattern sheet assembly (5), the second group of lenses (6), the prism module (2) according to any one of claims 4 to 5, and the third group of lenses (7) are arranged sequentially in its optical path.

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