A multi-color light mixing lamp
By designing the cup holder and convex lens, and utilizing multiple reflections within the reflector cup and the mixing of the lens, the problem of numerous components and bulky size in multi-color light source mixing schemes is solved, achieving uniform light spot color and a compact product design.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG DARKO OPTOELECTRONICS TECHNOLOGY CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-07-10
AI Technical Summary
In existing high-end lighting products, the multi-color light mixing scheme results in a large number of components, a complex system structure, and a bulky size, which also increases material and manufacturing costs, making it difficult to achieve miniaturization and compact design.
By employing a cup-and-lens structure, and through multiple reflections within the reflector cup and the mixing of the lens, light of different colors is disrupted, overlapped, and interwoven within the reflector cup to form a uniform mixed light spot.
It achieves uniform light spot color, avoids color edges and spots, and has a simple and compact product structure, reducing manufacturing costs.
Smart Images
Figure CN224480644U_ABST
Abstract
Description
[Technical Field]
[0002] This utility model mainly relates to a multi-color mixing lamp. [Background Technology]
[0004] In high-end lighting applications (such as professional film and television camera lights, stage lights, automotive headlights, and projectors), the use of multiple monochromatic light sources to achieve high color rendering index, wide color gamut, and adjustable color temperature has become an industry trend. The core challenge of this type of optical system lies in how to fully mix multicolored light from different spatial locations before projection to form a uniformly colored light spot on the target illumination surface, free from color separation phenomena (such as color fringing or color patches). The color uniformity of the light spot directly determines the final quality of the lighting product and the user experience.
[0005] Currently, traditional solutions for multicolor light mixing mostly employ a beam splitting method. Specifically, this approach equips each color light source with an independent and complete optical system (e.g., each LED chip has its own reflector or lens), forming multiple parallel optical channels. Each monochromatic light path undergoes independent optical processing in space (such as collimation or focusing), and is finally superimposed and mixed in the far field (i.e., on the illuminated surface) to achieve white light or the target color light. However, configuring independent optical components for each light source inevitably leads to a large number of components, a complex system structure, and a bulky overall size. This contradicts the current design trend of miniaturization, compactness, and lightweight lighting products, and also significantly increases material and manufacturing costs. Therefore, a new light mixing scheme is proposed to simplify product size and reduce complexity. [Utility Model Content]
[0007] To solve at least one of the above problems, this utility model proposes a new structural solution. This multi-color mixing lamp adopts the following technical solution:
[0008] A multi-color mixing lamp, comprising a cup holder, a lamp panel, and a convex lens;
[0009] The cup holder is equipped with a reflector cup, the light panel is located at the bottom of the reflector cup, and the convex lens is located at the top of the reflector cup; the light panel is equipped with several LED light sources of different colors, and the light generated by the different colored LED light sources is mixed inside the reflector cup and then scattered outward through the convex lens.
[0010] Preferably, the cup holder is an integral structure with a cavity, the reflector cup is disposed in the cavity, and the lamp board is connected to the cavity and to the bottom of the reflector cup so that the light generated by the LED light source on the lamp board enters the reflector cup.
[0011] Preferably, the bottom of the cup holder is provided with a clearance space.
[0012] Preferably, the reflector cup gradually increases in size from its bottom to its top.
[0013] Preferably, the top of the cup holder is provided with a snap-fit part, and the edge of the convex lens is provided with a snap-fit opening. The snap-fit part and the snap-fit opening are engaged to limit the position of the convex lens in the cup holder.
[0014] Preferably, the bayonet has a protrusion and the snap-fit part has an insert interface, and the convex lens is fixed to the cup holder by connecting the protrusion and the insert interface.
[0015] The beneficial effects of this utility model compared with the prior art are:
[0016] This solution uses a reflector cup and lens for light mixing adjustment. When light of different colors enters the reflector cup of the cup cup, the curved surface inside the cup reflects the light multiple times. With each reflection, the different colors of light are spatially disrupted, overlapped, and intertwined. The light passing through each point on the lens originates from multiple light sources of different positions and colors within the reflector cup. Therefore, each emitted light spot formed by the lens is a mixture of light contributed by all colors of light sources, rather than the color of a single light source. The final projected light spot has a very uniform color, without obvious color edges, color spots, or color separation. It has advantages such as simple structure, compact fit, and reasonable design; therefore, it is a product with superior performance in both technology and economy. [Attached Image Description]
[0018] Figure 1 A schematic diagram of a multi-color mixing lamp in a preferred embodiment of this utility model;
[0019] Figure 2 A first-view schematic diagram of the multi-color mixing lamp in its decomposed state in a preferred embodiment of this utility model;
[0020] Figure 3 This is a second-view schematic diagram of the multi-color mixing lamp in its decomposed state in a preferred embodiment of the present invention.
Detailed Implementation Methods
[0022] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.
[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0024] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and beneficial effects of the present invention clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0025] The preferred embodiment provided by this utility model is as follows: Figures 1-3 As shown, a multi-color mixing lamp includes a cup holder 1, a lamp plate 2, and a convex lens 3. The cup holder 1 is provided with a reflector cup 12, the lamp plate 2 is located at the bottom of the reflector cup 12, and the convex lens 3 is located at the top of the reflector cup 12. The convex lens 3 and the lamp plate 2 are tightly fitted to the light-emitting cup. The lamp plate 2 is provided with a number of LED light sources 13 of different colors. The light generated by the LED light sources 13 of different colors is mixed in the reflector cup 12 and then scattered outward through the convex lens 3.
[0026] The cup holder 1 is a one-piece structure with a cavity 14. The reflector cup 12 is located inside the cavity 14. The lamp plate 2 is connected to the cavity 14 and is in contact with the bottom of the reflector cup 12, so that the light generated by the LED light source 13 on the lamp plate 2 can enter the reflector cup 12. The lamp plate 2 is made of an aluminum substrate, which is locked to the cup holder 1 by screws. The cup holder 1 is provided with a corresponding locking post. The bottom end of the cup holder 1 is provided with a clearance 15, which allows the lamp plate 2 to be easily pried out by inserting fingers into the clearance 15 when disassembling it.
[0027] The reflector cup 12 gradually increases in size from its bottom to its top. The area of the LED light source 13 on the light panel 2 corresponds to the bottom area of the reflector cup 12 to ensure that the light completely enters the reflector cup 12. The top of the cup holder 1 is provided with a locking part 16, and the edge of the convex lens 3 is provided with a locking slot 31. The locking part 16 engages with the locking slot 31 to define the position of the convex lens 3 on the cup holder 1. The locking slot 31 is provided with a protrusion 32, and the locking part 16 is provided with a fitting interface 17. The protrusion 32 engages with the fitting interface 17 to fix the convex lens 3 on the cup holder 1.
[0028] LED beads of various colors are arranged on the aluminum substrate. Different colors and multiple colors of LED beads are already existing products, so their specific structures will not be described in detail here. When different colors of light enter the reflector 12, the curved surface inside the reflector 12 reflects the light multiple times. With each reflection, the different colors of light are spatially disrupted, overlapped, and intertwined. The light passing through each point on the lens originates from multiple light sources of different positions and colors within the reflector. Therefore, each emitted light spot ultimately formed by the lens is a mixture of light contributed by all colors of light sources, rather than the color of a single light source. The final projected light spot has a very uniform color, without obvious color edges, color spots, or color separation (i.e., "patches of yellow and blue").
[0029] In the description of this specification, references to terms such as "an embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. Illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0030] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions based on this utility model using techniques known in the art all fall within the protection scope of this utility model and should be defined by the claims.
Claims
1. A multi-color mixing lamp, characterized in that: It includes a cup holder, a lamp panel, and a convex lens; The cup holder is equipped with a reflector cup, the light panel is located at the bottom of the reflector cup, and the convex lens is located at the top of the reflector cup; the light panel is equipped with several LED light sources of different colors, and the light generated by the different colored LED light sources is mixed inside the reflector cup and then scattered outward through the convex lens.
2. A multi-color mixing lamp according to claim 1, characterized in that: The cup holder is an integral structure with a cavity. The reflector cup is located inside the cavity, and the light panel is connected to the cavity and the bottom of the reflector cup so that the light generated by the LED light source on the light panel shines into the reflector cup.
3. A multi-color mixing lamp according to claim 1, characterized in that: The bottom of the cup holder has a recessed area.
4. A multi-color mixing lamp according to claim 1, characterized in that: The reflector cup gradually increases in size from its bottom to its top.
5. A multi-color mixing lamp according to claim 1, characterized in that: The top of the cup holder is provided with a locking part, and the edge of the convex lens is provided with a locking slot. The locking part and the locking slot are engaged to limit the position of the convex lens in the cup holder.
6. A multi-color mixing lamp according to claim 5, characterized in that: The bayonet has a protrusion, and the snap-fit part has an insert interface. The convex lens is fixed to the cup holder by connecting the protrusion and the insert interface.