A multi-led wide-area light field adjustable lamp
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUHAI YUNFENG LIGHTING PROD CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-06-19
Smart Images
Figure CN224381332U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lighting focus adjustment technology, specifically to a multi-LED wide-area adjustable light field lighting fixture. Background Technology
[0002] Currently, most mainstream focusing lamps employ a mechanical displacement focusing mechanism. This involves adjusting the convergence or divergence of light by changing the axial distance between the light source (such as an LED) and the focusing lens, thereby regulating the beam's illumination range. While this approach is feasible for point light source applications, it presents inherent challenges when applied to large light-emitting surfaces (such as floodlights, streetlights, and high-ceiling industrial and mining lamps). Because the light source covers a large area, a relative displacement between the entire light source assembly and the lens group is required, leading to the following insurmountable inherent contradictions:
[0003] Increased overall size: To drive the movement of the wide-area light source, a sliding rail or screw mechanism must be configured. Such mechanisms not only significantly increase the thickness of the luminaire, but also cause deformation due to frequent focusing over a long period, affecting the structural rigidity. Utility Model Content
[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a multi-LED wide-area adjustable light field lamp, which solves the problems of excessive lamp size and poor structural stability caused by the need to adjust the focus between the light source and the lens in the traditional technology.
[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:
[0006] This utility model provides a multi-LED wide-area adjustable light field lamp, comprising:
[0007] The first housing has at least one lighting area, and the lighting area has at least two independently controlled light arrays. Each light array includes several LED light sources and a convex lens optically coupled to them. Each light array is configured to have different lighting characteristics, and different light arrays in the same lighting area are arranged in a spatially staggered manner.
[0008] The partition drive module is connected to each group of illumination arrays and is used to change the focal length and light field distribution of the lamp output beam by selectively activating illumination arrays with specific illumination characteristics.
[0009] In some embodiments, the illumination characteristics include at least one of the lens's focal length, divergence angle, or refractive index distribution.
[0010] In some embodiments, the spatial staggered arrangement includes a staggered cellular array arrangement, a gradient density distributed array arrangement, or a ring-nested array arrangement.
[0011] In some embodiments, the spatial staggered arrangement is manifested in that any three adjacent convex lenses in the same illumination area contain at least two different focal length types.
[0012] In some embodiments, the partition driver module includes:
[0013] A rotary selector, which has at least three positions, is used to rotate and switch between different activation combination modes of different groups of illumination arrays;
[0014] The activation combination modes include single illumination characteristic group activation, multiple parallel activation groups, or alternating pulse activation.
[0015] Compared with the prior art, the present invention has at least the following beneficial effects:
[0016] This application changes the focusing method, so that there is no need for displacement between the LED light source and the convex lens, and the distance between the two is fixed. This can effectively simplify the lamp structure, reduce unnecessary structural parts, and reduce the size.
[0017] By arranging light arrays with different illumination characteristics in a spatially staggered manner in the lighting area, when it is necessary to change the focal length and light field distribution of the lamp output beam, it is only necessary to selectively activate the corresponding light array to achieve adjustable light field.
[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description
[0019] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.
[0020] Figure 1 This is a structural schematic diagram of a multi-LED wide-area adjustable light field lamp provided in an embodiment of this application.
[0021] Figure 2 This is a schematic diagram of the structure of a multi-LED wide-area adjustable light field lamp provided in an embodiment of this application after the first housing is hidden.
[0022] Figure 3 This is a front view of a multi-LED wide-area adjustable light field lamp provided in an embodiment of this application. Detailed Implementation
[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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 of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0025] In the description of this utility model, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may not be directly connected to the other devices but may have an intermediary device.
[0026] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.
[0027] Reference Figures 1 to 3 This application proposes a multi-LED wide-area adjustable light field luminaire, comprising:
[0028] The first housing 10 has at least one lighting area 11. The lighting area 11 has at least two independently controlled light arrays 20. Each light array 20 includes several LED light sources 21 and a convex lens 22 optically coupled to them. Each light array 20 is configured to have different lighting characteristics. Different light arrays 20 in the same lighting area 11 are arranged in a spatially staggered manner.
[0029] The partition drive module 30 is connected to each group of illumination arrays 20 respectively, and is used to change the focal length and light field distribution of the lamp output beam by selectively activating the illumination arrays 20 with specific illumination characteristics.
[0030] It should be noted that focal length is essentially a function of the angular distribution of light. By controlling the spatial ratio of light rays with different divergence angles at the microscopic scale, macroscopic focusing can be achieved. Specifically, at least one illumination area 11 is provided on the light-emitting surface of the first housing 10. At least two independently controlled illumination arrays 20 are arranged in each illumination area 11. Each illumination array 20 includes a corresponding LED light source 21 and a convex lens 22. Each corresponding LED light source 21 and convex lens 22 forms an independent optical channel. The corresponding LED light source 21 and convex lens 22 are defined as light-emitting units. Light-emitting units with different illumination characteristics are distributed in the illumination area 11 in a spatially staggered manner, like chess pieces, rather than being stacked in blocks. This allows both narrow-angle and wide-angle light-emitting units to be present in the set switching area at the same time. When the corresponding illumination array 20 with specific illumination characteristics is activated by the partition drive module 30, it is equivalent to switching different illumination arrays 20 to work, thereby adjusting the focal length and light field distribution of the lamp output beam.
[0031] Optionally, combined Figure 3 There are two sets of illumination arrays 20 with different focal lengths. The first illumination array 31 has a 30-degree illumination angle, and the second illumination array 32 has a 60-degree illumination angle. Each illumination array 20 has 20 LED light sources 21 and 20 convex lenses 22, with one LED light source 21 corresponding to each convex lens 22. Each illumination array 20 can be controlled independently. Figure 3 In the bottom column, the second illumination array 32 is inside the dashed box, and the first illumination array 31 is outside the dashed box.
[0032] When the LED light source 21 of the first illumination array 31 is activated by the partition drive module 30, the LED light source 21 corresponding to the 60-degree convex lens 22 of the second illumination array 32 is turned off, and the lamp achieves a 30-degree illumination angle to illuminate the range.
[0033] When the LED light source 21 of the second illumination array 32 is activated by the partition drive module 30, the LED light source 21 corresponding to the 30-degree convex lens 22 of the first illumination array 31 is turned off, and the lamp achieves a 60-degree illumination angle to illuminate the range.
[0034] Of course, the first illumination array 31 and the second illumination array 32 can be activated simultaneously by controlling the partition drive module 30, so that the two LED light sources 21 can be started at the same time to achieve different angular illumination ranges.
[0035] Optionally, the light-emitting surface of the first housing 10 is provided with multiple lighting areas 11. The multiple lighting areas 11 are arranged on the light-emitting surface according to a certain pattern rule and positional relationship. Each lighting area 11 has at least two independently controlled light arrays 20 at the same time. The light arrays 20 with the same light characteristics in different lighting areas 11 perform actions according to the same control command. That is to say, the light arrays 20 with the same light characteristics in different lighting areas 11 are lit and turned off at the same time.
[0036] As one implementation method, the illumination characteristics include at least one of the lens's focal length, divergence angle, or refractive index distribution. Among them, the focal length determines the position of the beam convergence point, the divergence angle describes the angle of the light cone, and the refractive index distribution controls the light deflection gradient. These three types of parameters are essentially mathematical isomorphic expressions of the light deflection capability, and any difference among them can achieve a differentiated light field.
[0037] As one implementation method, spatial staggered arrangement includes staggered cellular array arrangement, gradient density distributed array arrangement, or ring nested array arrangement.
[0038] In the staggered cellular array arrangement, each light-emitting unit is adjacent to another light-emitting unit with different illumination characteristics, and the two types of light-emitting units are arranged in an alternating manner.
[0039] The gradient density distributed array is arranged by dividing the lighting area 11 into a core area, a transition area, and an edge area. According to the density change pattern, the lens ratio of the first type of lighting array 20 in the core area is 80%, the lens ratio of the first type of lighting array 20 in the transition area is 50%, and the lens ratio of the first type of lighting array 20 in the edge area is 20%, thus forming a gradient density distribution.
[0040] The arrangement of the ring-nested array is as follows: one ring inside another, with the first type of illumination array 20 in the middle, the second ring being the second type of illumination array 20, the third ring being the first type of illumination array 20, and so on outwards layer by layer, with the outer diameter increasing with each layer.
[0041] As one implementation method, the spatial staggered arrangement is manifested in that any three adjacent convex lenses 22 in the same illumination area 11 contain at least two different focal length types. By constraining any three adjacent convex lenses 22 in the same illumination area 11 to contain at least two different focal length types, the diversity of the three adjacent convex lenses 22 is ensured, and the optical mixing effect is improved.
[0042] In one implementation, the partition driver module 30 includes:
[0043] A rotary selector with at least three positions is used to rotate and switch between different activation combination modes of the illumination arrays 20.
[0044] Activation combination modes include single illumination characteristic group activation, multiple parallel activation, or alternating pulse activation.
[0045] The rotary selector can be rotated to different physical positions. Each position triggers the partition drive module 30 to execute a preset activation combination mode to achieve single illumination feature group activation, such as only the first illumination array 31 illuminating, or multiple groups activating in parallel, such as the first illumination array 31 and the second illumination array 32 illuminating together, or alternating pulse activation, such as the first illumination array 31 and the second illumination array 32 illuminating alternately.
[0046] In summary, compared with the prior art, the above embodiments have at least the following technical advantages:
[0047] This application changes the focusing method, so that there is no need for displacement between the LED light source 21 and the convex lens 22, and the distance between them is fixed. This can effectively simplify the lamp structure, reduce unnecessary structural parts, and reduce the size.
[0048] By arranging light arrays 20 with different lighting characteristics in a spatially staggered manner in the lighting area 11, when it is necessary to change the focal length and light field distribution of the output beam of the lamp, it is only necessary to selectively activate the corresponding light array 20 to achieve adjustable light field.
[0049] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A multi-LED wide-area light field adjustable luminaire, characterized by, include: The first housing has at least one lighting area, and the lighting area has at least two independently controlled light arrays. Each light array includes several LED light sources and a convex lens optically coupled to them. Each light array is configured to have different lighting characteristics, and different light arrays in the same lighting area are arranged in a spatially staggered manner. The partition drive module is connected to each group of illumination arrays and is used to change the focal length and light field distribution of the lamp output beam by selectively activating illumination arrays with specific illumination characteristics.
2. The multi-LED wide-area adjustable light field lamp as described in claim 1, characterized in that, The illumination characteristics include at least one of the lens's focal length, divergence angle, or refractive index distribution.
3. A multi-LED wide-area adjustable light field luminaire as described in claim 1, characterized in that, The spatial staggered arrangement includes staggered cellular array arrangement, gradient density distributed array arrangement, or ring nested array arrangement.
4. A multi-LED wide-area adjustable light field luminaire as described in claim 1, characterized in that, The spatial staggered arrangement is manifested in that any three adjacent convex lenses in the same illumination area contain at least two different focal length types.
5. A multi-LED wide-area light field adjustable luminaire according to any one of claims 1 to 4, characterized in that, The partition driver module includes: A rotary selector, which has at least three positions, is used to rotate and switch between different activation combination modes of different groups of illumination arrays; The activation combination modes include single illumination characteristic group activation, multiple parallel activation groups, or alternating pulse activation.