Lens and LED fishing lamp

Abstract

The utility model relates to lighting lamp technical field discloses a kind of lens and LED fish collecting lamp, including light source cavity, light exit surface, and the light incident surface of light source cavity cavity wall, light incident surface includes central incident surface, and multiple annular protrusions are arranged with central incident surface concentric and surround central incident surface, each annular protrusion gradually approaches the opening of light source cavity with the increase of distance from central incident surface, each annular protrusion includes first light incident surface and second light incident surface, the distance of first light incident surface to light exit surface increases to the direction of central incident surface away, second light incident surface connects the first light incident surface of adjacent two annular protrusions, the orthographic projection area of first light incident surface on light exit surface is greater than the orthographic projection area of second light incident surface on light exit surface. The lens of the utility model can make most of light effectively irradiate to water surface, and light propagation is farther and more uniform.

Description

Technical Field

[0001] This utility model relates to the field of lighting fixtures, and in particular to a lens and an LED fish-attracting lamp. Background Technology

[0002] While metal halide lamps currently on the market offer 360° omnidirectional light, they are energy-intensive, generate significant heat, and their diffused light means only a small portion effectively illuminates the water surface, leading to resource waste and increased fishing costs. Furthermore, metal halide lamps contain mercury, posing a threat to the environment and human health; their fragile glass and ultraviolet radiation can also harm fishermen. These drawbacks have prompted the fishing industry to gradually shift towards more environmentally friendly LED fish-attracting lamps.

[0003] Therefore, in order to improve the fishing environment and fish attraction effect, and significantly increase the effective utilization rate of the light source, it is necessary to develop a lens for LED fish attraction lights. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a lens that enables most of the light to effectively illuminate the water surface and for the light to propagate further and more evenly.

[0005] The technical problem to be solved by this utility model is to provide an LED fish-attracting light that improves the fishing environment and fish-attracting effect, and significantly improves the effective utilization rate of the light source.

[0006] To solve the above-mentioned technical problems, this utility model provides a lens, including a light source cavity, a light emitting surface, and a light incident surface located on the cavity wall of the light source cavity. The light incident surface includes a central incident surface and a plurality of annular protrusions concentric with and surrounding the central incident surface. Each annular protrusion gradually moves closer to the opening of the light source cavity as the distance from the central incident surface increases. Each annular protrusion includes a first light incident surface and a second light incident surface. The distance from the first light incident surface to the light emitting surface increases in the direction away from the central incident surface. The second light incident surface connects the first light incident surfaces of two adjacent annular protrusions. The orthographic projection area of ​​the first light incident surface on the light emitting surface is larger than the orthographic projection area of ​​the second light incident surface on the light emitting surface.

[0007] As an improvement to the above scheme, the first light incident surface of each of the annular protrusions is rounded to the second light incident surface.

[0008] As an improvement to the above solution, the annular protrusion further includes a polarizing segment. Both ends of the polarizing segment are connected to the first light incident surface and the second light incident surface to form a closed ring. The polarizing segment includes a third light incident surface and a fourth light incident surface. The distance from the third light incident surface to the light exit surface increases in the direction away from the central incident surface. The fourth light incident surface connects the third light incident surfaces of two adjacent annular protrusions. The orthographic projection area of ​​the third light incident surface on the light exit surface is smaller than the orthographic projection area of ​​the fourth light incident surface on the light exit surface.

[0009] As an improvement to the above scheme, the polarizing segments of each of the annular protrusions form a continuous fan-shaped region.

[0010] As an improvement to the above scheme, the third light incident surface of each of the annular protrusions is rounded to the fourth light incident surface.

[0011] As an improvement to the above scheme, the third ray incident surface on the polarization segment transitions smoothly with the first ray incident surface, and the fourth ray incident surface on the polarization segment transitions smoothly with the second ray incident surface.

[0012] As an improvement to the above scheme, the first light incident surfaces of each of the annular protrusions are arranged in parallel, and the second light incident surfaces of each of the annular protrusions are arranged in parallel.

[0013] As an improvement to the above scheme, the third light incident surface of each of the annular protrusions is arranged in parallel, and the fourth light incident surface of each of the annular protrusions is arranged in parallel.

[0014] As an improvement to the above scheme, the light emitting surface is dome-shaped.

[0015] In addition, this utility model also provides an LED fish-attracting lamp, which includes a power supply, a housing, a light source board and the aforementioned lens. The light source board is connected to the power supply and the housing. The light source board is provided with an LED light-emitting unit. The light incident surface on the lens is arranged opposite to the LED light-emitting unit.

[0016] Implementing this utility model has the following beneficial effects:

[0017] This utility model discloses a lens that forms a Fresnel ring by setting annular protrusions concentric with and surrounding the central incident surface on the light incident surface. This helps to uniformly emit light. The annular protrusions are arranged such that they gradually move closer to the opening of the light source cavity as the distance from the central incident surface increases. The distance from the first light incident surface of the annular protrusion to the light exit surface increases in the direction away from the central incident surface. The second light incident surface connects the first light incident surfaces of two adjacent annular protrusions. The orthographic projection area of ​​the first light incident surface on the light exit surface is set to be larger than the orthographic projection area of ​​the second light incident surface on the light exit surface. This causes specific refraction of light passing through the lens within the light source cavity, allowing for precise control of the light's direction of illumination, effective light focusing, and ensuring that most of the light effectively illuminates the water surface. Furthermore, the emitted light can be parallel to a certain extent, allowing the light to propagate further and more uniformly, achieving more efficient light penetration through the water surface, attracting fish, and improving fishing efficiency. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of a lens according to the present invention;

[0019] Figure 2 yes Figure 1 The front view;

[0020] Figure 3 yes Figure 2 Schematic diagram of the AA section structure;

[0021] Figure 4 yes Figure 3 A magnified structural diagram of part C.

[0022] Figure 5 yes Figure 2 Schematic diagram of the BB cross-section structure;

[0023] Figure 6 yes Figure 5 A schematic diagram of the light emission structure of the enlarged D section;

[0024] Figure 7 yes Figure 3 A schematic diagram of partial light emission;

[0025] Figure 8 This is a schematic diagram of an embodiment of the LED fish-attracting lamp of this utility model;

[0026] Figure 9 These are the light distribution curve and spatial illuminance curve of the LED fish-attracting light. Detailed Implementation

[0027] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0028] like Figures 1 to 7 As shown, this utility model discloses an embodiment of a lens, including a light source cavity 1, a light emitting surface 2, and a light incident surface 3 located on the cavity wall of the light source cavity 1. The light incident surface 3 includes a central incident surface 31 and a plurality of annular protrusions 32 arranged concentrically with and surrounding the central incident surface 31. Each annular protrusion 32 gradually moves closer to the opening of the light source cavity 1 as the distance from the central incident surface 31 increases, that is, the annular protrusions 32 gradually move closer to the opening of the light source cavity 1 in the direction away from the central incident surface 31. The opening of the light source cavity 1, each of the annular protrusions 32 includes a first light incident surface 321 and a second light incident surface 322. The distance from the first light incident surface 321 to the light exit surface 2 increases in the direction away from the central incident surface 31. The second light incident surface 322 connects the first light incident surfaces 321 of two adjacent annular protrusions 32. The orthogonal projection area of ​​the first light incident surface 321 on the light exit surface 2 is larger than the orthogonal projection area of ​​the second light incident surface 322 on the light exit surface 2.

[0029] In this embodiment, by setting annular protrusions 32 concentric with and surrounding the central incident surface 31 on the light incident surface 3, a Fresnel ring is formed, which helps to achieve uniform light output. Simultaneously, each of the annular protrusions 32 is configured such that it gradually moves closer to the opening of the light source cavity 1 as the distance from the central incident surface 31 increases. The distance from the first light incident surface 321 of the annular protrusion 32 to the light exit surface 2 increases in the direction away from the central incident surface 31. The second light incident surface 322 connects the first light incident surfaces of two adjacent annular protrusions 32. 321, The orthogonal projection area of ​​the first light incident surface 321 on the light exit surface 2 is set to be larger than the orthogonal projection area of ​​the second light incident surface 322 on the light exit surface 2, so that the light in the light source cavity 1 undergoes specific refraction when passing through the lens, which can precisely control the direction of light illumination, effectively focus the light, and make most of the light effectively illuminate the water surface. Moreover, the emitted light can be parallel to a certain extent, so that the light can spread further and more evenly, achieve more efficient light penetration of the water surface, attract fish to gather, and improve fishing efficiency.

[0030] The lens in this embodiment preferably uses high-transmittance polycarbonate material, which is low in cost and has a transmittance of over 80%, effectively reducing light loss. The lens is flat and dome-shaped, offering good mechanical stability and distributing wind load evenly across the lamp's support structure (metal housing). It also facilitates guiding light to a certain extent for parallel emission. Within the light source cavity 1 of the lens, the central incident surface 31 is a convex spherical surface. A central slot 21, coaxially arranged with the second convex spherical surface, is provided on the light emission surface 2 opposite to the central incident surface 31, allowing light from the center of the convex spherical surface to diffuse evenly outwards, avoiding the formation of a central bright spot. The convex spherical surface is surrounded by a series of concentric rings—annular protrusions 32—closely connected, with each annular protrusion 32 having an equal orthographic projection width on the light emission surface 2. This lens is thinner and lighter than traditional convex lenses with the same focusing capacity, helping to reduce costs and the overall size of the lamp while ensuring efficient focusing and uniform light distribution.

[0031] To facilitate control of the angle of the emitted light, the first light incident surface 321 of each annular protrusion 32 is preferably arranged in parallel, and the second light incident surface 322 of each annular protrusion 32 is preferably arranged in parallel.

[0032] Preferably, in this embodiment, the first light incident surface 321 and the second light incident surface 322 of each of the annular protrusions 32 are rounded to achieve a soft light spot effect, avoid the appearance of obvious bright spots, and thus avoid the glare problem affecting fishermen's fishing.

[0033] In addition, combined Figure 8 and Figure 9 This utility model also provides an LED fish-attracting lamp, which includes a power supply, a housing, a light source board, and the aforementioned lens. The light source board is connected to the power supply and the housing. The light source board is equipped with LED light-emitting units, and the light incident surface 3 on the lens is positioned opposite to the LED light-emitting units. A heat dissipation device is provided on the housing to help dissipate heat from the light source board. This embodiment of the fish-attracting lamp effectively improves luminous efficiency and lifespan by optimizing the light source and lens. Simultaneously, by combining the phototactic characteristics of specific fish species, it ensures that light efficiently penetrates the water surface, attracting fish to gather and thus improving fishing efficiency.

[0034] To further increase the effective light directed towards the sea area, the annular protrusion 32 in this embodiment also includes a polarizing segment 323. Both ends of the polarizing segment 323 are connected to the first light incident surface 321 and the second light incident surface 322 to form a closed ring. Specifically, the polarizing segment 323 includes a third light incident surface 323a and a fourth light incident surface 323b. The distance from the third light incident surface 323a to the light exit surface 2 increases in the direction away from the central incident surface 31. The fourth light incident surface 323b connects the third light incident surfaces 323a of two adjacent annular protrusions 32. The orthographic projection area of ​​the third light incident surface 323a on the light exit surface 2 is smaller than the orthographic projection area of ​​the fourth light incident surface 323b on the light exit surface 2. In this design, the two ends of the third light incident surface 323a on the polarizing segment 323 smoothly transition to the first light incident surface 321, and the two ends of the fourth light incident surface 323b on the polarizing segment 323 smoothly transition to the second light incident surface 322. The third light incident surface 323a and the fourth light incident surface 323b of each annular protrusion 32 have rounded corners to achieve a soft light spot effect, avoiding obvious bright streaks and preventing glare from affecting fishermen's fishing. The polarizing segments 323 of each annular protrusion 32 form a continuous fan-shaped area, allowing light within a certain angle range in the light source cavity 1 to be deflected more evenly and continuously towards the target area. The angle of this fan-shaped area is no greater than 180°, and can be 90°, 120°, etc.

[0035] Because the distance from the third light-incident surface 323a to the light-outceasing surface 2 increases away from the central incident surface 31, and the fourth light-incident surface 323b connects the third light-incident surfaces 323a of two adjacent annular protrusions 32, the projected area of ​​the third light-incident surface 323a on the light-outceasing surface 2 is smaller than the projected area of ​​the fourth light-incident surface 323b on the light-outceasing surface 2. When the light in the light source cavity 1 hits the polarizing section 323, the light emitted from the polarizing section 323 is no longer symmetrical with the light emitted from the area on the other side of the central incident surface 31 directly opposite the polarizing section 323. That is, it no longer emits light in a direction away from the central incident surface 31, but is deflected in a direction closer to the central incident surface 31. This Fresnel ring structure allows more light to be concentrated in the target area, improving illumination efficiency.

[0036] For LED fish-attracting lights, depending on the direction of the light source plate when installed on a fishing boat, the light from the upper part of the light source cavity 1 can be deflected downwards and directed to the sea surface to prevent light waste and improve lighting efficiency. Alternatively, the light directed towards the fishing boat can be directed to the sea surface to improve lighting efficiency.

[0037] To facilitate control of the light deflection angle, in this embodiment, the third light incident surface 323a of each of the annular protrusions 32 is preferably arranged in parallel, and the fourth light incident surface 323b of each of the annular protrusions 32 is arranged in parallel.

[0038] It should be noted that the distance from the first light incident surface 321 to the light exiting surface 2 increases in the direction away from the central incident surface 31, and the distance from the third light incident surface 323a to the light exiting surface 2 also increases in the direction away from the central incident surface 31. Both can be achieved through a linear increase in distance or other regular distance increase methods. In this embodiment, the light is presented as parallel light to a certain extent, meaning the emitted light rays have quasi-parallel light characteristics. The angle between the light rays emitted from two adjacent annular protrusions 32 is very small, generally not greater than 5°.

[0039] Through such Figure 8 The 1000W LED fish-attracting light shown was subjected to light distribution curve testing and spatial isolux curve testing, and its light pattern was obtained as follows: Figure 9 As shown in the figure. Experimental tests show that the luminous flux of this lamp can reach over 120klm, the peak luminous intensity can reach over 34900cd, and the downlight luminous flux ratio is over 96%, which can effectively focus the light to attract fish. At the same time, the lens can control the beam angle within 130°, making the beam more concentrated and uniform. While controlling the angle, the lamp can also illuminate a farther range than metal halide lamps and penetrate deeper into the seawater, thus attracting more fish.

[0040] The above-disclosed embodiment is merely a preferred embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A lens, characterized in that, The light source includes a light source cavity, a light emission surface, and a light incident surface located on the cavity wall. The light incident surface includes a central incident surface and a plurality of annular protrusions concentric with and surrounding the central incident surface. Each annular protrusion gradually moves closer to the opening of the light source cavity as its distance from the central incident surface increases. Each annular protrusion includes a first light incident surface and a second light incident surface. The distance from the first light incident surface to the light emission surface increases in the direction away from the central incident surface. The second light incident surface connects the first light incident surfaces of two adjacent annular protrusions. The orthographic projection area of ​​the first light incident surface on the light emission surface is larger than the orthographic projection area of ​​the second light incident surface on the light emission surface.

2. The lens as claimed in claim 1, characterized in that, The first light incident surface of each of the annular protrusions transitions to the second light incident surface at a rounded corner.

3. The lens as described in claim 1, characterized in that, The annular protrusion further includes a polarizing segment, both ends of which are connected to the first light incident surface and the second light incident surface to form a closed ring. The polarizing segment includes a third light incident surface and a fourth light incident surface. The distance from the third light incident surface to the light exit surface increases in the direction away from the central incident surface. The fourth light incident surface connects the third light incident surfaces of two adjacent annular protrusions. The orthographic projection area of ​​the third light incident surface on the light exit surface is smaller than the orthographic projection area of ​​the fourth light incident surface on the light exit surface.

4. The lens as described in claim 3, characterized in that, The polarizing segments of each of the aforementioned annular protrusions form a continuous fan-shaped region.

5. The lens as described in claim 3, characterized in that, The third light incident surface of each of the annular protrusions transitions to the fourth light incident surface with a rounded corner.

6. The lens as described in claim 3, characterized in that, The third ray incident surface on the polarizing segment transitions smoothly with the first ray incident surface, and the fourth ray incident surface on the polarizing segment transitions smoothly with the second ray incident surface.

7. The lens as claimed in claim 1, characterized in that, The first light incident surfaces of each of the annular protrusions are arranged in parallel, and the second light incident surfaces of each of the annular protrusions are arranged in parallel.

8. The lens as claimed in claim 3, characterized in that, The third light incident surfaces of each of the annular protrusions are arranged in parallel, and the fourth light incident surfaces of each of the annular protrusions are arranged in parallel.

9. The lens as claimed in claim 1, characterized in that, The light emission surface is dome-shaped.

10. An LED fish-attracting light, characterized in that, The device includes a power supply, a housing, a light source board, and a lens as described in any one of claims 1 to 9. The light source board is connected to the power supply and the housing. An LED light-emitting unit is provided on the light source board. The light incident surface on the lens is disposed opposite to the LED light-emitting unit.

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