Large-angle divergent lamp tube with elliptical cover

Abstract

The wide-angle divergent lamp tube comprises a lamp shell, the lamp shell comprises a lens and a tube body, the lens and the tube body are vertically arranged and integrally formed, the section of the lens is in a semi-oval shape and comprises a diffusion lens on the periphery and a refraction lens with the transparent inner periphery, the section of the tube body is in a semi-circular shape, and the diffusion lens is arranged on the periphery of the tube body. A light source plate is arranged in the inner cavity of the lens and the tube body, three rows of lamp beads are arranged on the light source plate, and each row of lamp beads are linearly arranged and evenly distributed in the longitudinal direction of the tube body, so that electric energy can be efficiently converted, sufficient illumination can be generated, meanwhile, energy waste is reduced, and the electricity utilization cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to an elliptical-shaded, large-angle divergent lamp tube. Background Technology

[0002] The layout of the lighting system in the breeding shed needs to take into account both the uniformity of light and the intensity of light.

[0003] Regarding the uniformity of lighting, areas of significant uneven lighting should be avoided inside flat-ground animal sheds. Currently, the light tubes used in animal sheds are primarily ceiling-mounted or suspended, illuminating the ground vertically from above. Their beam angle is generally a 120° Lambertian curve, characterized by high brightness at the base and low brightness at the edges. To ensure uniformity, multi-point lighting or auxiliary lighting is needed. Multi-point lighting involves setting up multiple light sources within the flat-ground shed to ensure even illumination. Auxiliary lighting uses reflectors or reflective materials to reflect light to insufficiently lit areas, thus wasting space. For animals kept in cages, the lighting is typically installed by binding the tubes to the upper center of the cage. Traditional tubes often result in very high illuminance inside the cage and very low illuminance at the edges, leading to highly uneven lighting. Therefore, it is necessary to research and develop lighting fixtures with more uniform illumination. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an elliptical-shaded, large-angle divergent lamp tube that can efficiently convert electrical energy, generate sufficient illumination, and simultaneously reduce energy waste and lower electricity costs.

[0005] This utility model is achieved using the following technical solution: an elliptical-shaded large-angle divergent lamp tube includes a lamp housing, the lamp housing includes a lens and a tube body, the lens and tube body are arranged vertically and integrally formed, the lens has a semi-elliptical cross-section, including an outer diffuser lens and an inner transparent refractive lens, the tube body has a semi-circular cross-section, a light source plate is provided in the internal cavity of the lens and tube body, and three rows of lamp beads are provided on the light source plate, each row of lamp beads is arranged in a single line along the longitudinal direction of the tube body and is evenly distributed.

[0006] The refractive lens has wavy sides and an arc-shaped middle section.

[0007] The light source board has three rows of LED beads: left, middle, and right. The angle A formed by the arc-shaped area in the middle of the refractive lens and the center of the middle row of LED beads is 120°. The angle B formed by the wavy areas on both sides of the refractive lens and the middle of the left and right rows of LED beads is 120°.

[0008] The refracting lens has three surfaces: m1, m2, and m3. The incident angles α1, α2, and α3 between the light rays from the left and right rows of LEDs and the three surfaces m1, m2, and m3 are acute angles.

[0009] Compared with existing technologies, the advantages of this utility model are: simple structure, more uniform illumination, efficient conversion of electrical energy to generate sufficient light, while reducing energy waste and lowering electricity costs. After the light emitted by the lamp beads of the light source board shines on the lens part of the outer shell, it will be refracted by the inner transparent refractive lens and diffused by the outer diffuser lens, increasing the light output angle. It is more suitable for lighting of breeding houses for ground breeding and cage installation, so that all areas of the house for ground breeding and all points in the cage for cage breeding can receive sufficient light. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the cross-section of the lens of this utility model;

[0012] Figure 3 This is a schematic diagram of the optical path of this utility model;

[0013] Figure 4 This is an actual optical pattern diagram of the present invention;

[0014] Figure 5 This is a computer-simulated optical pattern diagram of the present invention;

[0015] Figure 6 This is a traditional light distribution curve.

[0016] Explanation of key symbols:

[0017] 1. Diffuser lens; 2. Refractive lens; 3. Light source board; 4. Lamp beads; 5. Tube body. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0019] Example:

[0020] Please combine Figure 1 The elliptical large-angle divergent lamp tube of this embodiment includes a lamp housing, which includes a lens and a tube body 5. The lens and tube body 5 are arranged vertically and integrally formed. The lens has a semi-elliptical cross-section and includes an outer diffuser lens 1 and an inner transparent refractive lens 2. The tube body has a semi-circular cross-section. A light source plate is provided in the cavity inside the lens and tube body. The light source plate has three rows of lamp beads, and each row of lamp beads is arranged in a straight line along the longitudinal direction of the tube body and is evenly distributed.

[0021] The refractive lens 2 has wavy sides and an arc-shaped middle section.

[0022] Reference Figure 2 The light source plate 3 is provided with three rows of LED beads 4, on the left, middle and right. The angle A formed by the arc-shaped area in the middle of the refractive lens 2 and the center of the middle row of LED beads is 120°. The angle B formed by the wavy areas on both sides of the refractive lens 2 and the middle of the left and right rows of LED beads is also 120°. This structural design is conducive to the majority of the light from the three rows of LED beads 4 on the left, middle and right being irradiated to the wavy areas and arc areas on both sides respectively.

[0023] Reference Figure 3 The refracting lens 2 has three surfaces: m1, m2, and m3. The incident angles α1, α2, and α3 between the light rays from the left and right rows of LED beads 4 and the three surfaces m1, m2, and m3 are acute angles, so as to achieve the effect of expanding the angle outward.

[0024] Specifically, the upper part of the lamp housing is a semi-elliptical lens area, including an outer milky white PC diffusion lens and an inner transparent refractive lens. The lower part of the housing is a semi-circular pure white tube. The two parts are joined together and cannot be separated. They are extruded from the same mold. The inner middle part is the light source board. The lamp beads on the light source board are divided into three rows of lamp beads, left, middle and right. Each row of lamp beads is arranged in a line along the longitudinal direction of the tube and is evenly distributed.

[0025] The refractive lens 2 has wavy sides and an arc-shaped middle section. Most of the light from the left and right rows of LEDs will be irradiated by the wavy lens area. After two refractions, the angle expands outward. Most of the light from the middle row of LEDs will be irradiated by the arc-shaped middle area and will be emitted from the middle again according to the original light direction. The light from the left, middle and right rows of LEDs will reach the outer white PC diffuser lens area after passing through the inner transparent refractive lens area and then be diffused out.

[0026] Specifically, the outer periphery of the lens is a diffuser lens, which diffuses the light emitted from the inner refracting lens. The inner periphery is a transparent refracting lens, with wavy edges on the left and right sides and an arc shape in the middle. The lens is symmetrical along its central axis. The angle B between the edge of the wavy lens on the left and right sides and the center of the corresponding LED on the left and right sides is 120°, and the angle A between the edge of the arc-shaped lens in the middle and the center of the middle LED is 120°. In this way, the light from the left LED is basically directed towards the left wavy lens, and the same applies to the right and middle sides.

[0027] The density and power of the three rows of LEDs in the middle, center, and right sections of the central light source board can be varied, thus affecting the light intensity in each direction. As a result, the light distribution curve of the luminaire will vary, allowing for flexible design based on different project requirements.

[0028] The lighting design was practically verified, and its actual light pattern was tested. Figure 4 With computer-simulated light patterns Figure 5 The comparison meets the design expectations and is consistent with Figure 6Compared with traditional light distribution curves, the light distribution curve of this application is similar to an "umbrella", which can make the irradiation surface more uniform and the irradiation area larger.

[0029] 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. An elliptical-shaded, large-angle divergent lamp tube, characterized in that, The lamp includes a lamp housing, which comprises a lens and a tube. The lens and tube are arranged vertically and integrally formed. The lens has a semi-elliptical cross-section and includes an outer diffuser lens and an inner transparent refractive lens. The tube has a semi-circular cross-section. A light source plate is provided in the internal cavity of the lens and tube. The light source plate has three rows of LED beads, and each row of LED beads is arranged in a single line along the longitudinal direction of the tube and is evenly distributed.

2. The elliptical-shaded, large-angle divergent lamp tube as described in claim 1, characterized in that, The refractive lens has wavy sides and an arc-shaped middle section.

3. The elliptical-shaded, large-angle divergent lamp tube as described in claim 2, characterized in that, The light source board has three rows of LED beads: left, middle, and right. The angle A formed by the arc-shaped area in the middle of the refractive lens and the center of the middle row of LED beads is 120°. The angle B formed by the wavy areas on both sides of the refractive lens and the middle of the left and right rows of LED beads is 120°.

4. The elliptical-shaded, large-angle divergent lamp tube as described in claim 3, characterized in that, The refracting lens has three surfaces: m1, m2, and m3. The incident angles α1, α2, and α3 between the light rays from the left and right rows of LEDs and the three surfaces m1, m2, and m3 are acute angles.

Images