An illumination device with a fresnel lens

Abstract

The utility model discloses a kind of lighting equipment with fresnel lens, including shell, light source component, light collecting component and lens component, the light source component includes light source board and light source main body, the light collecting component includes inner cover, the inside of the inner cover is equipped with longitudinal bulkhead, the light channel surrounded by longitudinal bulkhead is corresponding with light source main body one to one, the lens component includes lens frame, the lens frame is equipped with several fresnel lenses, the bottom of the lens frame is fixed with limit block, the lens component further includes light transmission plate mounting frame, the top of the light transmission plate mounting frame is fixed with light transmission plate cushion layer, the top of the light transmission plate cushion layer is equipped with light transmission plate. The lighting equipment with fresnel lens is advanced in design, compact in structure, convenient to use, reliable in operation, by adopting the mode of multiple small fresnel lens combination, effectively solve the problem of high cost, high failure rate and inconvenient transportation of single large fresnel lens mold.

Description

Technical Field

[0001] This utility model belongs to the field of lighting equipment technology, and specifically relates to a lighting device with a Fresnel lens. Background Technology

[0002] Fresnel lenses, also known as "threaded lenses," are unique in that they "compress" the continuous curved surface of a traditional convex lens into a series of concentric, sawtooth grooves. This achieves the same optical effects (such as focusing and collimation) while significantly reducing the lens's thickness, weight, and material costs. Fresnel lens lamps are lighting devices that use Fresnel lenses as their core optical element. Thanks to their unique advantages, Fresnel lens lamps have found brilliance in numerous fields. For example, they can be used in automotive headlights and signal lights; in projectors and VR / AR headsets; in professional lighting equipment such as stage lights, film and television lights, and searchlights; and even during military parades, they can provide uniform, specific-angle illumination for marching formations, facilitating camera recognition.

[0003] Existing Fresnel lens lamps typically employ a single large Fresnel lens for wide-area, long-distance illumination. While a single large Fresnel lens can produce a very uniform, smooth, and seamless circular or rectangular light spot, it also suffers from drawbacks such as high mold costs, high failure rates, and inconvenient transportation. Therefore, there is an urgent need to design a lighting device with a Fresnel lens to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a lighting device with a Fresnel lens to solve the problems existing in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an illumination device with a Fresnel lens, comprising: The outer casing has several heat dissipation plates fixed to its top, and leveling bolts are provided at opposite diagonal ends of the top of the outer casing. A light source assembly, comprising a light source plate fixed to the top surface of the housing by bolts and a light source body fixed to the lower surface of the light source plate by bolts and electrically connected to the light source plate; A light-concentrating component, comprising an inner cover embedded in the inner surface of a housing, wherein the inner cover has several mutually perpendicular longitudinal partitions, and the light-emitting channels formed by the longitudinal partitions correspond one-to-one with the light source body. The lens assembly includes a lens frame disposed at the bottom of the inner cover, a plurality of Fresnel lenses disposed within the lens frame, a plurality of limiting blocks for supporting the Fresnel lenses fixed at the bottom of the lens frame, and a light-transmitting plate mounting frame fixed at the bottom of the outer shell, a light-transmitting plate pad fixed at the top of the light-transmitting plate mounting frame, and a light-transmitting plate disposed at the top of the light-transmitting plate pad.

[0006] Furthermore, a through hole is provided at the top diagonal of the outer shell, and a sealing head is fixedly nested in the through hole.

[0007] Furthermore, the main body of the light source is an LED lamp.

[0008] Furthermore, both the bottom of the longitudinal partition and the bottom of the side plate of the inner cover are provided with openings, which are corresponding to the limiting blocks.

[0009] Furthermore, the four corners of the lens frame are fixedly connected to the outer shell by bolts, and the bottom of the lens frame is provided with a groove that matches the limiting block.

[0010] Furthermore, both the light-transmitting plate pad and the light-transmitting plate mounting frame are rectangular frame structures with the same dimensions, and the light-transmitting plate pad is made of elastic silicone material.

[0011] Furthermore, the size of the light-transmitting plate is not less than the size of the center opening of the light-transmitting plate pad, and the light-transmitting plate is made of tempered glass.

[0012] Furthermore, the light-transmitting plate and the light-transmitting plate pad are bonded and fixed together by a double-sided adhesive layer, and the adhesive of the double-sided adhesive layer is made of acrylic material.

[0013] The technical effects and advantages of this utility model are as follows: This lighting device with Fresnel lenses features an advanced design, compact structure, ease of use, and reliable operation. By employing a combination of multiple small Fresnel lenses, it effectively solves the problems of high cost, high failure rate, and inconvenient transportation associated with single large Fresnel lens molds. The heat dissipation plate design on the top of the casing can dissipate the heat generated during operation in a timely manner, ensuring stable operation over a long period. The leveling bolts facilitate horizontal adjustment of the device, ensuring optimal lighting effects. The light source component uses LED lights, which have advantages such as energy saving, environmental protection, and long lifespan. The longitudinal partition and light-emitting channel design in the focusing component enable the light emitted by the light source to be more concentrated and evenly distributed. The limiting block and groove design in the lens component can firmly fix the Fresnel lens, preventing it from shifting or falling off. The combined design of the light-transmitting plate mounting frame, light-transmitting plate pad, and light-transmitting plate not only ensures light transmittance but also enhances the overall structural strength of the device. In addition, the light-transmitting panels are bonded and fixed to each other using a double-sided adhesive layer made of acrylic material, which ensures a strong bond that is not easy to fall off and will not block or affect the light. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of the present invention from another angle; Figure 3 This is a schematic diagram of the structure of this utility model without the light-transmitting plate; Figure 4 This is a schematic diagram of the structure of this utility model without the outer shell: Figure 5 This is a schematic diagram of the structure of the outer shell of this utility model; Figure 6 This is a schematic diagram of the structure of the inner cover of this utility model; Figure 7 This is a schematic diagram of the structure of the lens frame (including the Fresnel lens) of this utility model; Figure 8 This is a bottom view of the lens frame (including a Fresnel lens) of this utility model; Figure 9 This is a structural schematic diagram of the light-transmitting plate mounting frame (including the light-transmitting plate) of this utility model.

[0015] In the diagram: 100, outer casing; 101, heat sink; 102, leveling bolt; 103, through hole; 104, sealing head; 200, light source assembly; 201, light source board; 202, light source body; 300, focusing assembly; 301, inner cover; 302, longitudinal partition; 303, opening; 400, lens assembly; 401, lens frame; 402, Fresnel lens; 403, limiting block; 404, light-transmitting plate mounting frame; 405, light-transmitting plate pad; 406, light-transmitting plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] This utility model provides, for example Figure 1-9 The lighting device shown includes a Fresnel lens, comprising: The housing 100 has several heat dissipation plates 101 fixed on its top. The top of the housing 100 has leveling bolts 102 at opposite ends. In the actual application of the lighting equipment, the heat dissipation plates 101 on the top of the housing 100 can dissipate the heat generated by the light source component 200 when it is working in a timely manner, so as to avoid the equipment from being affected by overheating and affecting its performance and service life. The leveling bolts 102 make it convenient for users to adjust the equipment horizontally according to the actual installation environment to ensure the lighting effect. The light source assembly 200 includes a light source plate 201 fixed to the top surface of the housing 100 by bolts and a light source body 202 fixed to the lower surface of the light source plate 201 by bolts and electrically connected to the light source plate 201. The light source plate 201 in the light source assembly 200 provides stable power support to the light source body 202. Using LED lights as the light source body 202 has advantages such as energy saving, environmental protection and long life. The light-concentrating component 300 includes an inner cover 301 embedded in the inner surface of the outer shell 100. The inner cover 301 has several vertically perpendicular longitudinal partitions 302 inside. The light-emitting channels formed by the longitudinal partitions 302 correspond one-to-one with the light source body 202. The light-emitting channels formed by the inner cover 301 and the longitudinal partitions 302 of the light-concentrating component 300 can concentrate and guide the light emitted by the light source body 202, thereby improving the utilization rate of light. The lens assembly 400 includes a lens frame 401 disposed at the bottom of the inner cover 301, a plurality of Fresnel lenses 402 disposed within the lens frame 401, and a plurality of limiting blocks 403 fixed at the bottom of the lens frame 401 for supporting the Fresnel lenses 402. The lens assembly 400 also includes a light-transmitting plate mounting frame 404 fixed to the bottom of the outer casing 100, a light-transmitting plate pad 405 fixed at the top of the light-transmitting plate mounting frame 404, and a light-transmitting plate 405 disposed at the top of the light-transmitting plate pad 405. 6. The Fresnel lens 402 in the lens assembly 400 has special optical characteristics, which can further focus and shape light, making the illumination effect more uniform and bright. The limiting block 403 can accurately fix the position of the Fresnel lens 402 to ensure the stable performance of its optical properties. The light-transmitting plate mounting frame 404 and the light-transmitting plate 406 play the role of protecting the internal optical components and transmitting light. At the same time, the presence of the light-transmitting plate pad 405 also enhances the stability and reliability of the entire lens assembly 400.

[0020] For example, see Figure 1 As shown, a through hole 103 is provided at the top diagonal of the outer shell 100, and a sealing head 104 is fixedly nested inside the through hole 103.

[0021] In this technical solution, the plug head 104 can be made of materials such as rubber or plastic. Its function is to prevent dust, debris and other objects from entering the interior of the housing 100 through the through hole 103, so as to avoid damage to the internal components of the equipment. When the equipment needs to be inspected or maintained and the housing 100 needs to be opened, the plug head 104 can be pulled out from the through hole 103.

[0022] For example, see Figure 4 As shown, the main light source 202 is an LED lamp.

[0023] In this technical solution, LED lights have many advantages such as energy saving, environmental protection, and long life. Compared with traditional lighting sources such as incandescent lamps and halogen lamps, LED lights can produce the same or even higher brightness with lower energy consumption, which greatly reduces the operating cost of the equipment. Moreover, LED lights have high luminous efficiency and good light quality, which can provide a stable and uniform light source for lighting equipment and meet the lighting needs in different scenarios.

[0024] For example, see Figure 6 As shown, the bottom of the longitudinal partition 302 and the bottom of the side plate of the inner cover 301 are both provided with openings 303, and the openings 303 are correspondingly provided with the limiting blocks 403.

[0025] In this technical solution, on the one hand, it is convenient to accurately install the limiting block 403 into the corresponding position during the assembly process, ensuring that the Fresnel lens 402 can be stably placed inside the lens frame 401; on the other hand, the setting of the through-hole 303 is also conducive to the air circulation inside the equipment. When the equipment is running, the heat generated can be dissipated through the through-hole 303, which helps to improve the heat dissipation efficiency of the equipment and ensures that the equipment will not be affected by overheating during long-term operation; in addition, it can also ensure that the longitudinal partition 302 will not interfere with the bolts connecting the lens frame 401 and the limiting block 403.

[0026] For example, see Figure 3 , Figure 5 and Figure 8 As shown, the four corners of the lens frame 401 are fixedly connected to the outer shell 100 by bolts, and the bottom of the lens frame 401 is provided with a groove that matches the limiting block 403.

[0027] In this technical solution, the bolt fixing ensures that the connection between the lens frame 401 and the housing 100 is firm and reliable, and there will be no loosening or displacement during the use of the equipment. The groove set at the bottom of the lens frame 401 can fit tightly with the limiting block 403, further enhancing the fixing effect of the Fresnel lens 402, preventing the Fresnel lens 402 from shifting or falling off when the equipment is subjected to vibration or external impact, and ensuring the stable optical performance of the lighting equipment.

[0028] For example, see Figures 1-4 and Figure 9 As shown, both the light-transmitting plate pad 405 and the light-transmitting plate mounting frame 404 are rectangular frame structures with the same dimensions. The light-transmitting plate pad 405 is made of elastic silicone material.

[0029] In this technical solution, the silicone light-transmitting plate pad 405 has good elasticity and cushioning performance. When the light-transmitting plate 406 is installed on the light-transmitting plate pad 405, the silicone light-transmitting plate pad 405 can play a role in cushioning and shock absorption, reducing the impact of external forces on the light-transmitting plate 406 and protecting the light-transmitting plate 406 from damage. At the same time, the silicone light-transmitting plate pad 405 has a certain degree of flexibility, which can better fit the light-transmitting plate 406 and the light-transmitting plate mounting frame 404, thereby preventing dust, moisture and other substances from entering the equipment and protecting the internal components of the equipment.

[0030] For example, see Figure 2 and Figure 9 As shown, the size of the light-transmitting plate 406 is not less than the size of the center opening of the light-transmitting plate pad 405, and the light-transmitting plate 406 is made of tempered glass.

[0031] In this technical solution, tempered glass has advantages such as high strength, high transparency, and good heat resistance, which can ensure that light can pass through smoothly, while also withstanding a certain amount of external impact. It is not easy to break. Even if the light-transmitting panel 406 is accidentally broken during use, the tempered glass will break into particles, unlike ordinary glass which produces sharp fragments, thereby reducing the risk of injury to people.

[0032] For example, the light-transmitting plate 406 and the light-transmitting plate pad 405 are bonded and fixed together by a double-sided adhesive layer, and the adhesive of the double-sided adhesive layer is made of acrylic material.

[0033] In this technical solution, the double-sided adhesive layer made of acrylic ester material has good adhesion performance, which can firmly bond the light-transmitting plate 406 to the light-transmitting plate pad 405, ensuring that the light-transmitting plate 406 will not fall off during equipment use. Moreover, this double-sided adhesive layer has a certain degree of flexibility and weather resistance, and can maintain a stable adhesion effect under different environmental conditions, without losing its adhesiveness due to changes in factors such as temperature and humidity.

[0034] Working Principle: When using this lighting device with Fresnel lenses, the device is first leveled using the leveling bolts 102 on the top of the outer casing 100 to ensure optimal lighting effect. Then, the power is turned on, and the LEDs in the light source assembly 200 begin to emit light. Since the light source body 202 is fixed to and electrically connected to the light source board, the light emitted by the LEDs is relatively uniform and stable. The longitudinal partitions 302 inside the inner cover 301 initially guide and distribute the light. The light-emitting channels formed by the longitudinal partitions 302 correspond one-to-one with the light source body 202, allowing the light emitted by each light source body 202 to propagate along a specific channel, avoiding mutual interference and thus concentrating the light. Then, the light reaches the lens assembly 400, where multiple small Fresnel lenses 402 within the lens frame 401... The light undergoes further processing to achieve focusing or collimation optical effects, projecting the light out at a specific angle and range. The limiting block 403 at the bottom of the lens frame 401 firmly supports the Fresnel lens 402, preventing it from shifting or falling off and ensuring stable optical performance. Finally, the light passes through the light-transmitting plate 406. The light-transmitting plate mounting frame 404 and the light-transmitting plate pad 405 provide stable support and protection for the light-transmitting plate 406. The light-transmitting plate 406 is made of tempered glass, which has good light transmittance and high strength, ensuring that the light passes through smoothly and isolating the inside of the equipment from the outside world. The light-transmitting plate 406 and the light-transmitting plate pad 405 are bonded and fixed with a double-sided adhesive layer made of acrylic material, ensuring that the light-transmitting plate 406 will not fall off, thereby achieving a wide-range, long-distance, uniform, and specific-angle lighting effect.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lighting device with a Fresnel lens, characterized in that, include: The outer casing (100) has several heat dissipation plates (101) fixed on its top, and leveling bolts (102) are provided at opposite ends of the top of the outer casing (100). The light source assembly (200) includes a light source plate (201) fixed to the inner top surface of the housing (100) by bolts and a light source body (202) fixed to the lower surface of the light source plate (201) by bolts and electrically connected to the light source plate (201). A light-concentrating component (300) includes an inner cover (301) embedded in the inner surface of the outer shell (100). The inner cover (301) has several vertically perpendicular longitudinal partitions (302) inside. The light-emitting channels formed by the longitudinal partitions (302) correspond one-to-one with the light source body (202). The lens assembly (400) includes a lens frame (401) disposed at the bottom of the inner cover (301), a plurality of Fresnel lenses (402) disposed inside the lens frame (401), a plurality of limiting blocks (403) for supporting the Fresnel lenses (402) fixed at the bottom of the lens frame (401), and the lens assembly (400) also includes a light-transmitting plate mounting frame (404) fixed at the bottom of the outer shell (100), a light-transmitting plate pad (405) fixed at the top of the light-transmitting plate mounting frame (404), and a light-transmitting plate (406) disposed at the top of the light-transmitting plate pad (405).

2. The lighting device with a Fresnel lens according to claim 1, characterized in that: The outer shell (100) has a through hole (103) at the top diagonal, and a sealing head (104) is fixedly nested in the through hole (103).

3. The lighting device with a Fresnel lens according to claim 1, characterized in that: The main body of the light source (202) is an LED lamp.

4. The lighting device with a Fresnel lens according to claim 1, characterized in that: The bottom of the longitudinal partition (302) and the bottom of the side plate of the inner cover (301) are provided with openings (303), and the openings (303) are provided in correspondence with the limiting blocks (403).

5. The lighting device with a Fresnel lens according to claim 1, characterized in that: The four corners of the lens frame (401) are fixedly connected to the outer shell (100) by bolts, and the bottom of the lens frame (401) is provided with a groove that matches the limiting block (403).

6. The lighting device with a Fresnel lens according to claim 1, characterized in that: The light-transmitting plate pad (405) and the light-transmitting plate mounting frame (404) are both rectangular frame structures with the same size. The light-transmitting plate pad (405) is made of elastic silicone material.

7. The lighting device with a Fresnel lens according to claim 1, characterized in that: The size of the light-transmitting plate (406) is not less than the size of the center opening of the light-transmitting plate pad (405), and the light-transmitting plate (406) is made of tempered glass.

8. The lighting device with a Fresnel lens according to claim 1, characterized in that: The light-transmitting plate (406) and the light-transmitting plate pad (405) are bonded and fixed together by a double-sided adhesive layer, and the adhesive of the double-sided adhesive layer is made of acrylic material.

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