Lamp capable of uniformly emitting light in light guide form
By using a light guide-based lamp design, which incorporates individual LEDs and staggered light guide teeth, the problems of high lamp cost and color difference in existing technologies are solved. This achieves uniform light emission and overall color consistency on the lampshade surface, thereby reducing product costs.
Patent Information
- Application Number
- CN202520115806.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-01-17
AI Technical Summary
Existing lighting products require multiple LEDs and multiple PCBAs to achieve uniform light emission, resulting in high costs and potential color differences and localized unevenness.
The lighting fixture design using a light guide utilizes a single LED light source and a light guide structure. By employing the staggered arrangement of light guide teeth and smooth surface reflection, uniform illumination of light is achieved on the lampshade surface, reducing the number of LEDs and the area of the PCBA.
It achieves a uniform light emission effect on the lampshade surface, reduces the number of LEDs and PCBA area, improves overall color consistency and lighting uniformity, and reduces product costs.
Smart Images
Figure CN223649163U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lighting fixtures, and in particular to a lighting fixture that emits light uniformly in the form of a light guide. Background Technology
[0002] For existing lighting products, such as Figure 1 As shown, the device comprises an LED light board 91, a diffuser lampshade 92, and a lower cover 93. The LED light board 91 includes multiple LEDs and multiple PCBAs. The lamp uses multiple LEDs arranged in multiple rows to illuminate the light, which then shines onto the diffuser lampshade 92 to achieve uniform light emission.
[0003] This solution requires an array of many LEDs to provide uniform illumination and necessitates the splicing of multiple PCBAs, resulting in high costs for electronic components.
[0004] Therefore, considering the aforementioned technical problems, it is necessary to provide a new technical solution. Utility Model Content
[0005] To at least address one of the technical problems existing in the prior art, this utility model provides a lamp with uniform light emission via a light guide. The light source, after passing through the light guide, can achieve light emission throughout the entire light guide, illuminating the lampshade and thus achieving uniform light emission across the entire lampshade surface. The specific technical solution is as follows:
[0006] This utility model provides a light fixture that emits light uniformly in the form of a light guide, which includes a lamp plate, a light guide, a lamp cover, and a bottom cover;
[0007] The light panel includes a light source and a circuit board for fixing and mounting the light source;
[0008] The light guide is fixedly installed on one side of the light-emitting surface of the light source, and light guide teeth are evenly distributed on the surface of the light guide;
[0009] The lampshade has an installation opening, through which the lamp plate and light guide are fixedly housed within the lampshade, and the bottom cover closes to the installation opening of the lampshade.
[0010] As a preferred embodiment of the light-guiding lamp that emits light uniformly, as described in this utility model, the light-guiding surface is a smooth surface; and / or
[0011] The optical guide tooth consists of several optical guide tooth groups. The optical guide teeth of different optical guide tooth groups are arranged alternately along the optical guide axis. The other side of the optical guide corresponding to each optical guide tooth is a smooth surface.
[0012] As a preferred embodiment of the light-guiding lamp that emits light uniformly in the form of a light guide according to the present invention, the light guide teeth include at least a first light guide tooth group and a second light guide tooth group. Along the length direction of the light guide, the first light guide tooth group includes a plurality of first light guide teeth, which are arranged along the length direction of the light guide. The second light guide tooth group includes a plurality of second light guide teeth, which are arranged along the length direction of the light guide.
[0013] As a preferred embodiment of the light-guiding lamp that emits light uniformly in the form of a light guide according to the present invention, the length direction of the first light guide tooth is consistent with the radial direction of the light guide, and the arc of the first light guide tooth is 180 degrees.
[0014] The length direction of the second optical guide tooth is consistent with the radial direction of the optical guide, and the arc of the second optical guide tooth is 180 degrees.
[0015] Along the axial direction of the optical guide, the first optical guide tooth and the second optical guide tooth are arranged alternately.
[0016] As a preferred embodiment of the light-guiding lamp with uniform light emission as described in this utility model, the first light-guiding tooth is an arc-shaped light-guiding tooth; or
[0017] The first optical guide tooth is composed of multiple dot-shaped optical guide teeth arranged together.
[0018] As a preferred embodiment of the light-guiding lamp that emits light uniformly in the form of a light guide as described in this utility model, the light guide is a cylindrical light guide or a polygonal columnar light guide.
[0019] As a preferred embodiment of the light-guiding lamp that emits light uniformly in the form of a light guide according to the present invention, the length direction of the first light guide tooth and the second light guide tooth are both the radial direction of the light guide, and the length of the first light guide tooth and the second light guide tooth are both half the circumferential length of the light guide.
[0020] Along the axial direction of the optical guide, the first optical guide tooth and the second optical guide tooth are arranged alternately.
[0021] As a preferred embodiment of the light-guiding lamp that emits light uniformly, the light source is fixedly connected to the circuit board, the circuit board is fixed to the bottom cover, and the light guide is fixed to the light source or the circuit board surrounding the light source.
[0022] As a preferred embodiment of the light-guiding type uniform light-emitting lamp described in this utility model, the lamp board includes an LED lamp and a circuit board.
[0023] As a preferred embodiment of the light-guiding lamp that emits light uniformly in the form of a light guide as described in this utility model, the radial cross-sectional shape of the light guide teeth is triangular or arc-shaped.
[0024] Compared with the prior art, the technical solution of this utility model has at least one or more of the following beneficial effects:
[0025] This patent requires only one LED and one circuit board. The LED light is guided by a light guide, allowing the entire light guide to emit light, which then illuminates the lampshade, resulting in uniform illumination across the entire lampshade surface. Compared to existing technologies, this patent effectively reduces the number of LEDs and the size of the PCBA, significantly lowering product costs.
[0026] Existing lampshades do not have LEDs illuminating the upper side, resulting in poor overall uniformity. Furthermore, there may be color differences between different LEDs, leading to uneven color in some areas after lighting. This patented technology uses a single LED, resulting in better overall color consistency and the ability to illuminate the upper surface of the lampshade, thus improving overall uniformity.
[0027] After the LED emits light, the light enters the light guide and is reflected by the light guide teeth. Each light guide tooth corresponds to the size of a semicircle of the light guide. The reflected light then exits from the smooth surface and illuminates the inner surface of the lampshade. The light guide teeth are arranged alternately along the axial direction of the light guide to illuminate the entire periphery of the light guide. The lampshade is made of diffuser material, so the light emitted by the light guide is evenly illuminated after passing through the lampshade. At the same time, some light is directly emitted from the end of the light guide, thus achieving the effect of illuminating the entire lampshade.
[0028] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0029] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0030] Figure 1 This is an exploded structural diagram of a lighting product in the prior art;
[0031] Figure 2 This is an exploded structural diagram of the lamp described in this utility model;
[0032] Figure 3 This is a cross-sectional structural schematic diagram of the lamp described in this utility model;
[0033] Figure 4 yes Figure 3 A cross-sectional view of the optical guide described herein;
[0034] Figure 5 yes Figure 3A three-dimensional structural diagram of the optical guide described herein;
[0035] Figure 6 yes Figure 3 A cross-sectional view of the lamp board and light guide described herein;
[0036] Figure 7 This is a three-dimensional structural schematic diagram of another embodiment of the lamp board and light guide described in this utility model;
[0037] Figure 8 This is a three-dimensional structural schematic diagram of another embodiment of the lamp board and light guide described in this utility model.
[0038] Among them, 1-lamp board, 2-light guide, 3-lamp cover, 4-bottom cover, 11-light source, 12-circuit board, 21-light guide teeth, 211-first light guide tooth group, 212-second light guide tooth group, 213-arc light guide teeth, 214-dot light guide teeth, 22-smooth surface, 23-cylindrical light guide, 24-rectangular columnar light guide, 31-mounting port. Detailed Implementation
[0039] The embodiments of this utility model are described in detail below. Examples of these 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. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0040] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model 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 on this utility model. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0041] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "provided with," "equipped with," "connected," "installed," "sleeved," "opened," and "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between 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.
[0042] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
[0043] Please refer to Figure 2-8 ,like Figure 2-8 As shown, this utility model provides a light fixture that emits light uniformly in the form of a light guide, which includes a lamp plate 1, a light guide 2, a lamp cover 3, and a bottom cover 4;
[0044] The lamp board 1 includes a light source 11 and a circuit board 12 for fixing the light source 11;
[0045] The light guide 2 is fixedly disposed on one side of the light-emitting surface of the light source 11, and light guide teeth 21 are uniformly disposed on the surface of the light guide 2;
[0046] The lampshade 3 has an installation opening 31. The lamp plate 1 and the light guide 2 are fixedly housed inside the lampshade 3 through the installation opening 31, and the bottom cover 4 covers the installation opening 31 of the lampshade 3.
[0047] Preferably, the light source is an LED light. For example, such as... Figure 2-3 and Figure 6-8 As shown, the lamp board 1 only requires one LED and one circuit board 12. This patent uses only one LED and one circuit board. The LED light is guided by the light guide, allowing the entire light guide to emit light, which then illuminates the lampshade, achieving a uniform light emission effect across the entire lampshade surface. Compared to existing technologies, this patent effectively reduces the number of LEDs and also reduces the size of the PCBA, significantly lowering the product cost.
[0048] Existing lampshades do not have LEDs illuminating the upper side, resulting in poor overall uniformity. Furthermore, there may be color differences between different LEDs, leading to uneven color in some areas after lighting. This patented technology uses a single LED, resulting in better overall color consistency and the ability to illuminate the upper surface of the lampshade, thus improving overall uniformity.
[0049] In a preferred embodiment, such as Figure 2 , Figure 5 and Figure 7-8As shown, the surface of the light guide 2 is a smooth surface 22.
[0050] Preferably, the light guide 2 is a cylindrical light guide or a polygonal columnar light guide. Of course, this patent is not limited to this, as long as the light source can emit light uniformly. Among them, the polygonal columnar light guide includes, but is not limited to, prism-shaped light guides, cubic columnar light guides, or other shapes of light guides, etc.
[0051] In a preferred embodiment, such as Figure 2 , Figure 5 and Figure 7-8 As shown, the optical guide tooth 21 includes several optical guide tooth groups. The optical guide teeth in different optical guide tooth groups are staggered along the optical guide axis, and the other side of the optical guide corresponding to each optical guide tooth is a smooth surface. The staggered arrangement means that the optical guide teeth in one optical guide tooth group correspond to the smooth surfaces in the optical guide tooth group on the other side, and vice versa. Figure 2-8 As shown, optical guide teeth are staggered on the surface of the optical guide, and the other side of the optical guide corresponding to each tooth is a smooth surface.
[0052] Preferably, the optical guide tooth 21 includes at least a first optical guide tooth group 211 and a second optical guide tooth group 212. Along the length direction of the optical guide 2, the first optical guide tooth group 211 includes a plurality of first optical guide teeth, which are arranged along the length direction of the optical guide 2. The second optical guide tooth group 212 includes a plurality of second optical guide teeth, which are arranged along the length direction of the optical guide 2.
[0053] Further preferred examples, such as Figure 2-7 As shown, the light guide 2 is a cylindrical light guide 23, the length direction of the first light guide tooth is consistent with the radial direction of the light guide 2, and the arc of the first light guide tooth is 180 degrees;
[0054] The length direction of the second optical guide tooth is consistent with the radial direction of the optical guide 2, and the arc of the second optical guide tooth is 180 degrees.
[0055] Along the axial direction of optical guide 2, the first optical guide tooth and the second optical guide tooth are arranged alternately.
[0056] Of course, one example is... Figure 2-6 As shown, the first optical guide tooth is an arc-shaped optical guide tooth 213. Another example, such as... Figure 7 As shown, the first optical guide tooth is composed of a plurality of dot-shaped optical guide teeth 214 arranged together. In the example, the dot-shaped optical guide teeth include circular optical guide teeth, polygonal optical guide teeth, etc.
[0057] In a further preferred example, the light guide is a polygonal cylindrical light guide, such as a rectangular cylindrical light guide 24, especially a prismatic light guide or a cubic cylindrical light guide, etc. Figure 8 As shown, this patent is not limited to this;
[0058] The length direction of both the first and second optical guide teeth is consistent with the radial direction of the optical guide, and the length of both the first and second optical guide teeth is half of the circumferential length of the optical guide.
[0059] Along the axial direction of optical guide 2, the first optical guide tooth and the second optical guide tooth are arranged alternately.
[0060] In this embodiment, the light source 11 is fixedly electrically connected to the circuit board 12, the circuit board 12 is fixed to the bottom cover 4, and the light guide 2 is fixed to the light source 11 or the circuit board 12 surrounding the light source 11. In this example, the circuit board 12 can be glued to the bottom cover 4, the light source 11 (i.e., the LED lamp) is mounted on the circuit board 12, and the light guide 2 is glued to the LED lamp or the circuit board 12 surrounding the LED lamp.
[0061] In the example, the radial cross-section of the optical guide tooth is triangular (e.g., Figure 2-6 and Figure 8 As shown), arc (as shown) Figure 7 (as shown) or other forms of micro-patterns, etc. Among them, when the radial cross-section of the optical guide tooth is triangular, one corner of the triangle faces the optical guide.
[0062] like Figure 6 As shown, after the LED emits light, the light enters the interior of the light guide and is reflected by the light guide teeth. Each light guide tooth corresponds to the size of a semicircle of the light guide. The reflected light then exits from the smooth surface and illuminates the inner surface of the lampshade. The light guide teeth are arranged in an alternating pattern along the axial direction of the light guide to illuminate the entire periphery of the light guide. The lampshade is made of diffuser material, and the light emitted by the light guide is uniformly illuminated after passing through the lampshade. At the same time, some light is directly emitted from the end of the light guide, thus achieving the effect of illuminating the entire lampshade.
[0063] In the example, the light guide is made of transparent PC (polycarbonate) material.
[0064] It should be noted that, unless otherwise specified, all features in the above embodiments or embodiments described herein can be freely combined.
[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "yet another embodiment," "another embodiment," "other embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.
[0066] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications and variations to the above embodiments within the scope of the present invention.
Claims
1. A light fixture that emits light uniformly in the form of a light guide, characterized in that, It includes a lamp panel (1), a light guide (2), a lamp cover (3), and a bottom cover (4); The lamp board (1) includes a light source (11) and a circuit board (12) for fixing the light source (11); The light guide (2) is fixedly disposed on one side of the light-emitting surface of the light source (11), and light guide teeth (21) are uniformly disposed on the surface of the light guide (2); The lampshade (3) has an installation opening (31), and the lamp plate (1) and the light guide (2) are fixedly housed in the lampshade (3) through the installation opening (31). The bottom cover (4) covers the installation opening (31) of the lampshade (3).
2. The light fixture with uniform light emission in the form of a light guide according to claim 1, characterized in that, The surface of the light guide (2) is a smooth surface; and / or The optical guide tooth (21) includes several optical guide tooth groups. The optical guide teeth of different optical guide tooth groups are arranged alternately along the optical guide axis. The other side of the optical guide corresponding to each optical guide tooth is a smooth surface.
3. The light fixture with uniform light emission in the form of a light guide according to claim 2, characterized in that, The optical guide tooth (21) includes at least a first optical guide tooth group (211) and a second optical guide tooth group (212). Along the length direction of the optical guide (2), the first optical guide tooth group (211) includes a plurality of first optical guide teeth, which are arranged along the length direction of the optical guide (2). The second optical guide tooth group (212) includes a plurality of second optical guide teeth, which are arranged along the length direction of the optical guide (2).
4. The light fixture with uniform light emission in the form of a light guide according to claim 3, characterized in that, The length direction of the first optical guide tooth is consistent with the radial direction of the optical guide (2), and the arc of the first optical guide tooth is 180 degrees. The length direction of the second optical guide tooth is consistent with the radial direction of the optical guide (2), and the arc of the second optical guide tooth is 180 degrees. Along the axial direction of the optical guide (2), the first optical guide tooth and the second optical guide tooth are arranged alternately.
5. The light fixture with uniform light emission in the form of a light guide according to claim 4, characterized in that, The first optical guide tooth is an arc-shaped optical guide tooth (213); or The first optical guide tooth is composed of multiple dot-shaped optical guide teeth (214) arranged together.
6. A luminaire that emits light uniformly in the form of a light guide according to any one of claims 1-5, characterized in that, The light guide (2) is a cylindrical light guide or a polygonal cylindrical light guide.
7. The luminaire with uniform light emission in the form of a light guide according to claim 6, characterized in that, The length of both the first and second optical guide teeth is in the radial direction of the optical guide, and the length of both the first and second optical guide teeth is half the circumferential length of the optical guide. Along the axial direction of the optical guide (2), the first optical guide tooth and the second optical guide tooth are arranged alternately.
8. The luminaire with uniform light emission in the form of a light guide according to claim 1, characterized in that, The light source (11) is fixedly connected to the circuit board (12), the circuit board (12) is fixed to the bottom cover (4), and the light guide (2) is fixed to the light source (11) or the circuit board (12) around the light source (11).
9. The light fixture with uniform light emission in the form of a light guide according to claim 1, characterized in that, The light panel (1) includes an LED light and a circuit board (12).
10. The luminaire with uniform light emission in the form of a light guide according to claim 1, characterized in that, The cross-sectional shape of the optical guide tooth along the radial direction is triangular or arc-shaped.