LED lamp structure with adjustable light angle

Abstract

The utility model discloses a kind of LED lamp structure with adjusting illumination angle, comprising: PCB substrate and lens;The PCB substrate is equipped with luminous body, and the luminous body includes at least two independently controlled luminous bodies, and is respectively central luminous body and peripheral luminous body;The lens is set on PCB substrate, and it is equipped with light inlet, and the light inlet is located luminous body top.The utility model realizes the adjustment of luminous angle by the cooperation of central luminous body and peripheral luminous body, does not need to adjust the distance of luminous body to lens light inlet by mechanical mode, avoids complex mechanical adjustment structure, and with high precision, fast response characteristics.

Description

Technical Field

[0001] This utility model belongs to the field of optical lighting technology, and specifically relates to an LED lamp structure with adjustable illumination angle. Background Technology

[0002] In modern optical lighting technology, the combination of lenses and light emitters is a widely used basic structure. This structure is widely used in automotive lighting, stage lighting, security monitoring, landscape lighting, indoor lighting, medical lighting, and many other fields. Traditional lens lighting systems typically consist of three parts: a lens, a PCB substrate, and a light emitter. The light emitter is fixedly mounted on the PCB substrate, and the lens is positioned above the light emitter. The lens focuses or diverges the light emitted by the light emitter to form a beam of light at a specific angle. In existing lens illumination systems, the emitting surface of the light-emitting element typically employs a single, uniformly sized structural design. While this design is simple, it suffers from a significant technical drawback: when the light emission angle needs to be changed, the distance between the emitting surface and the lens inlet must be mechanically adjusted. Specifically, to decrease the light emission angle, the distance between the emitting surface and the lens must be increased; conversely, to increase the light emission angle, the distance must be decreased. This mechanical adjustment method presents numerous problems in practical applications. First, mechanical adjustment structures are complex and require additional adjustment devices, which not only increases the complexity of the system but also raises manufacturing costs. Second, mechanical adjustment has limited precision and makes it difficult to achieve precise angle control, especially in applications requiring fine-tuning, where mechanical adjustment often fails to meet accuracy requirements. Third, mechanical movement requires a certain amount of time and has a slow response speed, making it impossible to achieve rapid angle switching, which is a serious limitation in some applications that require dynamic angle adjustment. Therefore, there is an urgent need for a lens lighting system that can adjust the light output angle without mechanical adjustment. This system should have advantages such as simple structure, high adjustment accuracy, fast response speed, high reliability, and small size, and be able to meet the needs of modern lighting technology for flexibility and intelligence. This utility model addresses the shortcomings of existing technologies by proposing an innovative solution. Through a special light-emitting body structure design, it enables the function of changing the light emission angle without mechanical adjustment, thereby solving various problems existing in the prior art.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide an LED lighting fixture structure with adjustable illumination angle, thereby overcoming the defects in the prior art.

[0005] To achieve the above objectives, this utility model provides an LED lighting fixture structure with adjustable illumination angle, comprising: a PCB substrate and a lens; a light-emitting element is provided on the PCB substrate, the light-emitting element including at least two independently controlled light-emitting elements, namely a central light-emitting element and a peripheral light-emitting element; the lens is disposed on the PCB substrate and has a light inlet, the light inlet being located above the light-emitting element.

[0006] Furthermore, as a preferred embodiment, the central light-emitting element is a cylindrical structure located at the center of the PCB substrate.

[0007] Furthermore, preferably, the peripheral light-emitting element is a ring structure that surrounds the central light-emitting element.

[0008] Furthermore, preferably, the central light-emitting element and the peripheral light-emitting element are each controlled by an independent circuit.

[0009] Furthermore, preferably, the lens is provided with mounting ears, and the lens is assembled with the PCB substrate through the mounting ears.

[0010] Furthermore, preferably, the lens is made of optical-grade PMMA or glass.

[0011] Furthermore, preferably, the diameter of the central light-emitting element is 3-8 mm.

[0012] Furthermore, preferably, the central light source and the peripheral light source are LED light sources or laser diodes.

[0013] Furthermore, preferably, the lens has a horn-shaped structure.

[0014] Furthermore, preferably, the back of the PCB substrate is provided with a heat dissipation structure.

[0015] Compared with the prior art, one aspect of this utility model has the following beneficial effects: This invention achieves the adjustment of the light emission angle through the cooperation of the central light-emitting body and the peripheral light-emitting body. It eliminates the need to adjust the distance between the light-emitting body and the lens entrance through mechanical means, thus avoiding a complex mechanical adjustment structure. It also features high precision and fast response. Attached Figure Description

[0016] Figure 1 This is a structural diagram of an LED lamp with adjustable illumination angle according to the present invention. Figure 2This is an exploded structural diagram of an LED lamp with adjustable illumination angle according to the present invention. Figure 3 This is a cross-sectional view of an LED lamp structure with adjustable illumination angle according to the present invention; Figure 4 This is a schematic diagram of the light output structure of an LED lamp with adjustable illumination angle according to the present invention; Figure 5 This is a cross-sectional view of another embodiment of the LED lamp structure with adjustable illumination angle according to the present invention; The attached figures are labeled as follows: 1-PCB substrate, 2-lens, 21-light inlet, 22-mounting ear, 3-light emitter, 31-central light emitter, 32-peripheral light emitter, 4-heat dissipation structure. Detailed Implementation

[0017] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0018] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.

[0019] Example: An LED lamp structure with adjustable illumination angle includes: a PCB substrate 1 and a lens 2; the PCB substrate 1 is provided with a light-emitting body 3, the light-emitting body 3 includes at least two independently controlled light-emitting bodies, namely a central light-emitting body 31 and a peripheral light-emitting body 32; the lens 2 is disposed on the PCB substrate 1 and has a light inlet 21, the light inlet 21 being located above the light-emitting body 3.

[0020] In this embodiment, as a specific solution, the central light-emitting element 31 is a cylindrical structure located at the center of the PCB substrate.

[0021] In this embodiment, as a specific solution, the peripheral light-emitting body 32 is a ring structure that surrounds the central light-emitting body 31.

[0022] In this embodiment, as a specific solution, the central light-emitting element 31 and the peripheral light-emitting element 32 are controlled by independent circuits.

[0023] In this embodiment, as a specific solution, the lens 2 is provided with a mounting ear 22, and the lens 2 and the PCB substrate 1 are assembled through the mounting ear 22.

[0024] In this embodiment, as a specific solution, the lens 2 is made of optical-grade PMMA or glass.

[0025] In this embodiment, as a specific solution, the diameter of the central light-emitting body 31 is 3-8mm; the peripheral light-emitting body 32 is arranged around the outer wall of the central light-emitting body 31.

[0026] In this embodiment, as a more specific solution, the central light-emitting body 31 and the peripheral light-emitting body 32 have the same height.

[0027] In this embodiment, as a specific solution, the central light source 31 and the peripheral light source 32 are LED light sources or laser diodes.

[0028] In this embodiment, as a more specific solution, the lens 2 has a horn-shaped structure.

[0029] In another specific embodiment, as a preferred option, the back of the PCB substrate 1 is provided with a heat dissipation structure 4.

[0030] The method for adjusting the light emission angle of this utility model is as follows: When the central light emitter 31 is turned on and its intensity is adjusted to 100%, and the peripheral light emitter 32 is turned off, the light emission angle is approximately 15°; when the central light emitter 31 is turned on and its intensity is adjusted to 71%, and the peripheral light emitter 32 is turned on and its intensity is adjusted to 29%, the light emission angle is approximately 18°; when the central light emitter 31 is turned on and its intensity is adjusted to 49%, and the peripheral light emitter 32 is turned on and its intensity is adjusted to 51%, the light emission angle is approximately 24°; when the central light emitter 31 is turned on and its intensity is adjusted to 39%, and the peripheral light emitter 32 is turned on and its intensity is adjusted to 61%, the light emission angle is approximately 30°; when the central light emitter 31 is turned on and its intensity is adjusted to 100%, the light emission angle is approximately 15 ... When the intensity is adjusted to 30% and the peripheral light emitter 32 is turned on, with the intensity adjusted to 70%, the light emission angle is approximately 36°. When the central light emitter 31 is turned on, with the intensity adjusted to 20% and the peripheral light emitter 32 is turned on, with the intensity adjusted to 80%, the light emission angle is approximately 42°. When the central light emitter 31 is turned on, with the intensity adjusted to 7% and the peripheral light emitter 32 is turned on, with the intensity adjusted to 93%, the light emission angle is approximately 50°. Thus, by adjusting the ratio of the luminous intensity of the central light emitter 31 and the peripheral light emitter 32, the light emission angle can be adjusted within the range of 15°-50°. The response time can be less than 10ms.

[0031] This invention eliminates the need for mechanical adjustment of the distance between the light-emitting body and the lens entrance, thus avoiding complex mechanical adjustment structures, and features high precision and fast response.

[0032] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A structure for an LED lamp with adjustable illumination angle, characterized in that, include: A PCB substrate and a lens; the PCB substrate is provided with a light-emitting body, the light-emitting body including at least two independently controlled light-emitting bodies, namely a central light-emitting body and a peripheral light-emitting body; the lens is disposed on the PCB substrate and has a light inlet, the light inlet being located above the light-emitting body.

2. The LED lamp structure with adjustable illumination angle according to claim 1, characterized in that, The central light-emitting element is a cylindrical structure located at the center of the PCB substrate.

3. The LED lamp structure with adjustable illumination angle according to claim 2, characterized in that, The peripheral light-emitting element has a ring structure and surrounds the central light-emitting element.

4. The LED lamp structure with adjustable illumination angle according to claim 1, characterized in that, The central light source and the peripheral light source are each controlled by an independent circuit.

5. The LED lamp structure with adjustable illumination angle according to claim 1, characterized in that, The lens is provided with mounting ears, and the lens is assembled with the PCB substrate through the mounting ears.

6. The LED lamp structure with adjustable illumination angle according to claim 1, characterized in that, The lens is made of optical-grade PMMA or glass.

7. The LED lamp structure with adjustable illumination angle according to claim 2, characterized in that, The diameter of the central light-emitting element is 3-8 mm.

8. The LED lamp structure with adjustable illumination angle according to claim 1, characterized in that, The central light source and the peripheral light source use LED light sources or laser diodes.

9. The LED lamp structure with adjustable illumination angle according to claim 1, characterized in that, The lens has a horn-shaped structure.

10. The LED lamp structure with adjustable illumination angle according to claim 1, characterized in that, The back of the PCB substrate is provided with a heat dissipation structure.

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