Lamp for increasing illumination

Abstract

The utility model provides a kind of luminaire of improving illumination. Luminaire includes shell, heat dissipation piece, light source board and diffusion cover, light source board is closely arranged and is set on heat dissipation piece, heat dissipation piece is fixed in shell interior, diffusion cover is installed in shell. Diffusion cover inner surface is equipped with multiple annular sawtooth units, the first and second sawtooth units of sawtooth unit can concentrate light to luminaire center, improve below illumination, the third sawtooth unit of sawtooth unit is used to blur light source particle sense, improve appearance and reduce side glare. The structure of sawtooth unit can effectively improve illumination without increasing power and quantity of power supply in luminaire.

Description

Technical Field

[0001] This utility model relates to a lamp, and more particularly to a lamp that improves illuminance. Background Technology

[0002] Lighting equipment is an indispensable tool in daily life. Currently, LED T-lights are widely used due to their low cost and wide applicability. Conventional T-lights often use cylindrical bulbs as optical components. The light diffuses through the bulb at a large angle, resulting in excessive light dispersion within the illuminated area and insufficient central illumination. To compensate for this, the power supply wattage or the number of lights needs to be increased, which not only increases energy consumption but also shortens the lifespan of the lights, increasing costs and maintenance complexity. Utility Model Content

[0003] In view of the above problems, a lamp of one embodiment of the present invention effectively improves illuminance while reducing energy consumption through the light source layout and the special sawtooth structure design of the inner surface of the diffuser, while also taking into account aesthetics and comfort.

[0004] One embodiment of this utility model provides a lamp for improving illuminance, comprising a housing, a heat sink, a light source plate, and a diffuser. The heat sink is disposed inside the housing, the light source plate is disposed on the heat sink, and the light source elements on the light source plate are closely arranged in a circle. The diffuser is fixed to the housing, and the inner surface of the diffuser has a serrated structure.

[0005] According to a preferred embodiment of the above-described luminaire for improving illuminance, the circular diameter is less than 100 mm. The circular diameter is between 35 mm and 50 mm.

[0006] According to a preferred embodiment of the above-mentioned lamp for improving illuminance, the sawtooth structure includes a first sawtooth unit, a second sawtooth unit and a third sawtooth unit. The first sawtooth unit is disposed on the top of the diffuser away from the light source plate, the third sawtooth unit is disposed adjacent to the light source plate, and the second sawtooth unit extends outward from the periphery of the first sawtooth unit to the third sawtooth unit.

[0007] According to a preferred embodiment of the above-mentioned lamp for improving illuminance, the area of ​​the first sawtooth unit is the range around a first angle centered on the light source normal of the light source plate. The first sawtooth unit has a plurality of first refractive surfaces and a plurality of second refractive surfaces forming a first acute angle. The length ratio of each first refractive surface to each second refractive surface is 1:2.2 and they are connected sequentially.

[0008] According to a preferred embodiment of the above-mentioned lamp for improving illuminance, the area of ​​the second sawtooth unit is the range around the second angle centered on the light source normal of the light source plate. The second sawtooth unit has a plurality of third refractive surfaces and a plurality of fourth refractive surfaces forming obtuse angles. The length ratio of each third refractive surface to each fourth refractive surface is 1:1.2 and they are connected in sequence.

[0009] According to a preferred embodiment of the above-described lamp for improving illuminance, the third sawtooth unit has a plurality of fifth refractive surfaces and a plurality of sixth refractive surfaces forming a second acute angle, wherein the length ratio of each fifth refractive surface to each sixth refractive surface is 1:1 and they are connected sequentially.

[0010] According to a preferred embodiment of the above-mentioned lamp for improving illuminance, the first sawtooth unit and the second sawtooth unit are arranged in a ring, and the distance between the circular first sawtooth unit and the circular second sawtooth unit is 2mm.

[0011] According to a preferred embodiment of the above-mentioned lamp for improving illuminance, the third sawtooth unit is arranged in a ring array, and the protrusion direction of the third sawtooth unit is perpendicular to that of the first sawtooth unit or the second sawtooth unit.

[0012] According to a preferred embodiment of the above-mentioned lamp for improving illuminance, the sawtooth structure is arc-shaped or pyramidal.

[0013] In summary, the illuminance-enhancing lamp according to an embodiment of this utility model, by providing a serrated structure on the inner surface of the diffuser, can effectively increase illuminance without increasing power or number of units. Light is concentrated at the center of the lamp, improving the problem of insufficient lighting below the lamp, achieving high illuminance with lower power, and extending the lamp's lifespan. Furthermore, the third serrated unit improves side light output, enhancing user comfort, and the serrated structure on the inner surface eliminates graininess, improving the product's appearance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the appearance of a lamp according to an embodiment of the present invention.

[0015] Figure 2 This is an exploded top view diagram of a lamp embodiment according to the present invention.

[0016] Figure 3 This is an exploded view from the bottom of an embodiment of the lamp according to the present invention.

[0017] Figure 4 This is a cross-sectional schematic diagram of an embodiment of the lamp according to the present invention.

[0018] Figure 5 According to Figure 4 Enlarged schematic diagram of lead A.

[0019] Figure 6 According to Figure 4 Enlarged schematic diagram of lead B.

[0020] Figure 7 According to Figure 4 Enlarged schematic diagram of lead C.

[0021] Figure 8 This is a top view schematic diagram of an embodiment of the diffuser according to the present invention.

[0022] Figure 9 This is a schematic diagram of the two-dimensional planar light intensity distribution curve of the lamp according to the present invention.

[0023] Figure 10 This is a chart showing the illuminance distance of the lamps according to this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Outer shell; 2. Heat sink; 3. Light source board; 31. Light source component; 4. Diffuser; 41. Sawtooth structure; 411. First sawtooth unit; 4110. First acute angle; 4111. First refractive surface; 4112. Second refractive surface; 412. Second sawtooth unit; 4120. Obtuse angle; 4121. Third refractive surface; 4122. Fourth refractive surface; 413. Third sawtooth unit; 4130. Second acute angle; 4131. Fifth refractive surface; 4132. Sixth refractive surface; L. Light source normal; R1. First angle; R2. Second angle. Detailed Implementation

[0026] The advantages and features of this invention, as well as the methods of achieving it, will be more readily understood from a more detailed description with reference to exemplary embodiments and accompanying drawings. However, this invention may be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments provided will enable those skilled in the art to more thoroughly and completely convey the scope of this invention, which will be defined solely by the appended claims. In the figures, the dimensions and relative dimensions of components or parts are shown in an exaggerated manner for clarity. Throughout this specification, the same component symbols refer to the same components. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed objects.

[0027] Unless otherwise defined, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art. It will be further understood that terms defined, for example, in commonly used dictionaries, shall be understood to have meanings consistent with those in the relevant field, and shall not be interpreted in an overly idealized or overly formal sense unless explicitly defined herein.

[0028] The following detailed description of exemplary embodiments, in conjunction with the accompanying drawings, is provided. However, these embodiments may be included in different forms and should not be construed as limiting the scope of this invention. The provision of these embodiments makes the disclosure of this invention complete and clear, and those skilled in the art will be able to understand the scope of this invention through these embodiments.

[0029] To explain in detail the technical content, structural features, objectives, and effects of the technical solution, the following description is provided in conjunction with specific embodiments and accompanying drawings.

[0030] Please see Figures 1 to 3 , Figure 1 This is a schematic diagram of the appearance of an embodiment of the lighting fixture. Figure 2 This is an exploded view from the top of an embodiment of the lighting fixture. Figure 3 This is an exploded view from the bottom of an embodiment of the lighting fixture. In this embodiment, the lighting fixture is a T-lamp used to improve illuminance. The lighting fixture includes a housing 1, a heat sink 2, a light source plate 3, and a diffuser 4. The housing 1 is generally the lower half of a spherical lamp structure. The heat sink 2 is disposed inside the housing 1 and is disc-shaped. The heat sink 2 has flexible, bent walls around its perimeter, which abut against the inner wall of the housing 1. The light source plate 3 is mounted on the heat sink 2. The light source elements 31 on the light source plate 3 are closely arranged in a circle, the diameter of which is less than 100 mm, preferably between 35 mm and 50 mm.

[0031] In this embodiment, the diffuser 4 is fixed to the outer shell 1. The diffuser 4 is generally the upper half of a spherical lamp structure. The diffuser 4 is made of a high-transparency, high-fog material and is fixed to the outer shell 1 by screw threads or adhesive bonding. The inner surface of the diffuser 4 is provided with multiple sets of serrated structures 41. The serrated structures 41 are arc-shaped or pyramidal.

[0032] During assembly, the heat sink 2 is first installed inside the housing 1, and the light source board 3 is fixed to the heat sink 2. The LEDs of the light source board 3 are arranged in a high density to form a circular light-emitting area with a diameter of less than 100mm. Then, the diffuser 4 is fixed to the housing 1 by screws or glue, so that the serrated structure 41 on the inner surface of the diffuser 4 faces the light source board 3.

[0033] Please see Figures 4 to 7 , Figure 4 This is a cross-sectional schematic diagram of an embodiment of the lighting fixture. Figure 5 for Figure 4 Enlarged diagram of lead A, Figure 6 for Figure 4 Enlarged diagram of lead B, Figure 7 for Figure 4Enlarged schematic diagram of lead C. In this embodiment, the sawtooth structure 41 includes a first sawtooth unit 411, a second sawtooth unit 412, and a third sawtooth unit 413. The diffuser shroud 4 has the first sawtooth unit 411 disposed on its top away from the light source plate 3, the third sawtooth unit 413 disposed adjacent to the light source plate 3, and the second sawtooth unit 412 extends outward from the periphery of the first sawtooth unit 411 to the third sawtooth unit 413.

[0034] In this embodiment, the first sawtooth unit 411 forms a 45-degree angle with the light source normal L, and the first refractive surface 4111 and the second refractive surface 4112 form an acute angle with a length ratio of approximately 1:2.2. Specifically, the area of ​​the first sawtooth unit 411 is centered on the light source normal L of the light source plate 3 and extends around a first angle R1 (e.g., ...). Figure 4 The light source normal L is 45 degrees to the right and 45 degrees to the left of the light source normal L. The first sawtooth unit 411 has a plurality of first refractive surfaces 4111 and a plurality of second refractive surfaces 4112 forming a first acute angle 4110. The length ratio of each first refractive surface 4111 to each second refractive surface 4112 is 1:2.2 and they are connected in sequence.

[0035] In this embodiment, the second sawtooth unit 412 forms a 70-degree angle with the light source normal L, and the third and fourth refractive surfaces form an obtuse angle with a length ratio of approximately 1:1.2. Specifically, the area of ​​the second sawtooth unit 412 is the range around the light source normal L of the light source plate 3, encompassing a second angle R2 (45 to 70 degrees). The second sawtooth unit 412 has multiple third refractive surfaces 4121 and multiple fourth refractive surfaces 4122 forming an obtuse angle 4120. The length ratio of each third refractive surface 4121 to each fourth refractive surface 4122 is 1:1.2, and they are sequentially connected.

[0036] In this embodiment, the forming direction of the third serrated unit 413 is perpendicular to the aforementioned unit, and the fifth refractive surface and the sixth refractive surface form an acute angle with a length ratio of approximately 1:1. Specifically, the third serrated unit 413 has a plurality of fifth refractive surfaces 4131 and a plurality of sixth refractive surfaces 4132 forming a second acute angle 4130, and the length ratio of each fifth refractive surface 4131 to each sixth refractive surface 4132 is 1:1 and they are connected sequentially.

[0037] Please see Figure 4 and Figure 8 , Figure 8 This is a top view schematic diagram of the diffuser 4 embodiment. The first sawtooth unit 411 and the second sawtooth unit 412 are arranged in a ring, with a spacing of 2mm between the circular first sawtooth unit 411 and the circular second sawtooth unit 412. This is used to refract and concentrate the LED light emitted by the Lambert lamp to the center of the lamp, thereby enhancing the brightness below. The third sawtooth unit 413 is arranged in a ring array to blur the graininess of the light source and reduce the brightness of the side light, thus avoiding glare.

[0038] Please see Figures 9 to 10 , Figure 9 This is a schematic diagram of the two-dimensional planar luminous intensity distribution curve of the luminaire. Figure 10 This is a graph showing the illuminance distance of the luminaire. In this embodiment, the test results of the emission angle and illuminance show that, with an emission angle of 75 degrees and an illuminance (2m) of 527 lx, the light distribution curve shows a medium-to-high illuminance with a small emission angle and increased illuminance. Compared with conventional wide-angle tri-proof lamps, the illuminance can be increased by 62%.

[0039] According to an embodiment of the present invention, during the projection of light from the light source plate 3, the Lambertian rays emitted by the light source plate 3 are refracted by the first sawtooth unit 411 and the second sawtooth unit 412 and converge toward the center of the lamp, thereby increasing the center illuminance. The third sawtooth unit 413 plays a role in beautification and light control, reducing the intensity of side light and reducing glare to the human eye.

[0040] In summary, by incorporating a serrated structure on the inner surface of the diffuser, the luminaire can effectively increase illuminance without increasing power or the number of units. Light is concentrated at the center of the luminaire, addressing insufficient lighting below the luminaire, achieving high illuminance with lower power consumption, and extending the luminaire's lifespan. Furthermore, the third serrated unit improves side light output, enhancing user comfort, and the serrated inner surface eliminates graininess, improving the product's appearance.

[0041] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural or procedural transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this utility model patent.

Claims

1. A lamp for improving illuminance, characterized in that, The device includes a housing, a heat sink, a light source plate, and a diffuser. The heat sink is disposed inside the housing, the light source plate is disposed on the heat sink, and the light source elements on the light source plate are closely arranged in a circle. The diffuser is fixed to the housing, and the inner surface of the diffuser has a serrated structure.

2. The lamp as described in claim 1, characterized in that, The diameter of the circle is less than 100 mm.

3. The lamp as described in claim 2, characterized in that, The diameter of the circle is 35mm to 50mm.

4. The lamp as described in claim 1, characterized in that, The sawtooth structure includes a first sawtooth unit, a second sawtooth unit, and a third sawtooth unit. The first sawtooth unit is disposed on the top of the diffuser away from the light source plate. The third sawtooth unit is disposed adjacent to the light source plate. The second sawtooth unit extends outward from the periphery of the first sawtooth unit to the third sawtooth unit.

5. The lamp as described in claim 4, characterized in that, The area of ​​the first sawtooth unit is the range around the light source normal of the light source plate as the center and around the first angle. The first sawtooth unit has a plurality of first refractive surfaces and a plurality of second refractive surfaces forming a first acute angle. The length ratio of each first refractive surface to each second refractive surface is 1:2.2 and they are connected in sequence.

6. The lamp as described in claim 4, characterized in that, The area of ​​the second sawtooth unit is the range around the second angle centered on the light source normal of the light source plate. The second sawtooth unit has a plurality of third refractive surfaces and a plurality of fourth refractive surfaces forming obtuse angles. The length ratio of each third refractive surface to each fourth refractive surface is 1:1.2 and they are connected in sequence.

7. The lamp as described in claim 4, characterized in that, The third sawtooth unit has a plurality of fifth refractive surfaces and a plurality of sixth refractive surfaces forming a second acute angle, wherein the length ratio of each fifth refractive surface to each sixth refractive surface is 1:1 and they are connected sequentially.

8. The lamp as described in claim 4, characterized in that, The first and second sawtooth units are arranged in a ring, and the distance between the circular first sawtooth unit and the circular second sawtooth unit is 2mm.

9. The lamp as described in claim 4, characterized in that, The third sawtooth unit is arranged in a circular array, and the protrusion direction of the third sawtooth unit is perpendicular to that of the first sawtooth unit or the second sawtooth unit.

10. The lamp as described in claim 1, characterized in that, The sawtooth structure is either arc-shaped or pyramidal.

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