Uniform light guide lens structure

Abstract

The utility model relates to a uniform light guide lens structure which comprises a lamp holder, the lamp holder is connected with a lampshade, the lampshade is provided with a diffuse reflection face used for diffuse reflection, an installation cavity is formed between the lampshade and the lamp holder, the installation cavity is provided with a lamp source and a connecting frame, and the connecting frame is used for installing the lamp source. Symmetrical connecting flanges are arranged at the bottom of the connecting frame, bases are arranged between the connecting flanges on the two sides and used for fixing a lamp source, the two ends of each base are rotationally connected to the connecting flanges on the two sides, the multiple bases are arranged at intervals, and the bases rotate to adjust the light-emitting angle of the lamp source so as to improve the lighting uniformity of the lamp source. The utility model has the following advantages and effects: by optimizing the arrangement of the lamp source, the light can be ensured to be fully diffused, and the illumination uniformity of the lamp source is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lens technical field, concretely relates to a uniform light guide lens structure. BACKGROUND

[0002] The lens is an optical device that can help improve the light efficiency of the light source and change the light field distribution of the light source.

[0003] For example, the Chinese patent technical document with the publication number CN220817539U discloses a lens with a uniform diffuse reflection structure, which includes a lens body. The upper end of the lens body is an arc-shaped light-emitting part. The upper end of the lens body is a cylindrical mounting part. A lamp bead placement cavity is arranged in the lens body. A lamp bead placement position that communicates with the lamp bead placement cavity is arranged on the lower end surface of the cylindrical mounting part. First and second diffuse reflection surfaces are respectively arranged on the outer wall of the cylindrical mounting part and the lower end surface of the cylindrical mounting part.

[0004] In the above technical solution, the first and second diffuse reflection surfaces can effectively diffuse the light that is directed to the sidewall of the cylindrical mounting part and the lower end surface of the cylindrical mounting part, thereby weakening the influence of stray lines and improving the uniformity of the light source illumination.

[0005] However, in the above technical solution, the light source, i.e., the lamp bead, mainly reflects the light emitted by the lamp bead to the entire lens body through diffuse reflection. However, the light-emitting angle of the lamp bead is constant, which causes the light-emitting angle of the lamp bead to be unable to cover the entire lens body, resulting in insufficient diffuse reflection of the light and problems such as over-brightness in the center and over-darkness at the edges. Therefore, there are still certain limitations in improving the uniformity of the light source illumination. SUMMARY

[0006] In view of the deficiencies of the prior art, the purpose of the utility model is to provide a uniform light guide lens structure that optimizes the arrangement of the light source to ensure that the light can be fully diffused and reflected, thereby improving the uniformity of the light source illumination.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a uniform light guide lens structure, which includes a lamp holder. The lamp holder is connected with a lamp shade. The lamp shade is provided with a diffuse reflection surface for diffuse reflection. An installation cavity is formed between the lamp shade and the lamp holder. The installation cavity is provided with a light source and a connecting frame. The connecting frame is used to install the light source. The bottom of the connecting frame is provided with symmetrical connecting flanges. A base is arranged between the two connecting flanges. The base is used to fix the light source. The base is rotatably connected to the two connecting flanges at both ends. The base is a plurality of bases that are spaced apart from each other. The light-emitting angle of the light source is adjusted by rotating the base, thereby improving the uniformity of the light source illumination.

[0008] The utility model further sets up: the outside of connecting frame is equipped with the box body corresponding with base, the side of base is equipped with the connecting end extending to the box body, the outside of connecting end is fixed with knob, the box body is rotatably connected with locking bolt, locking bolt and connecting end are perpendicular in same plane, locking bolt is used for tightly connecting connecting end, fixes the rotation angle of base.

[0009] The utility model further sets up: the light source is LED lamp area.

[0010] The utility model further sets up: the inside of connecting frame is equipped with cavity, be equipped with driver in the cavity, be equipped with connecting terminal on the LED lamp area, the terminal and driver are electrically connected through the wire.

[0011] The utility model further sets up: the lamp holder is equipped with installation groove, be equipped with the connecting part extending to the installation groove on connecting frame, the connecting part is adapted with installation groove, the lamp holder is equipped with the first threaded hole of penetration, the first threaded hole is linked with installation groove, the connecting part is equipped with the second threaded hole of opposite first threaded hole, the second threaded hole and first threaded hole are fixed through locking piece between.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] Since the LED lamp area is installed on the rotatable base, the light emitting angle of the LED lamp area can be adjusted by rotating the base, thereby realizing the superposition and coverage of multi-angle light, facilitating the full reflection of the diffuse reflection surface, so that the diffuse reflection surface of the lampshade reflects the light, and the LED lamp area forms staggered illumination areas through angle adjustment, effectively eliminates dark areas, and improves the uniformity of the illuminance of the lamp, so that the technical problems of insufficient diffuse reflection of light, over-bright center and over-dark edge caused by constant light emitting angle of the light source in the prior art are effectively solved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is overall structure schematic view of the utility model;

[0015] Fig. 2 It is explosion schematic view of the utility model;

[0016] Fig. 3 It is cross section structure schematic view of the utility model;

[0017] Fig. 4 It is connecting structure schematic view of base and connecting frame in the utility model. DETAILED DESCRIPTION

[0018] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0019] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] As Figs. 1 to 4 The utility model discloses a uniform light guide lens structure, including lamp stand 1, lamp stand 1 is connected with lamp shade 2, lamp shade 2 is by transparent PC material injection molding, and its inner surface forms diffuse reflection surface through sand blasting process, and the end surface of lamp shade 2 and the end surface of lamp stand 1 are bonded through sealing glue. Form mounting cavity 3 between lamp shade 2 and lamp stand 1, and connecting frame 9 and light source 4 are arranged in mounting cavity 3. Among them, the connecting flange 5 of two sides is extended to the bottom of connecting frame 9, and the rotating shaft hole is formed in the inner side of connecting flange 5. Base 6 is arranged between two connecting flanges 5, and base 6 is multiple and parallel interval arrangement, and the both ends of each base 6 are rotatably connected with the rotating shaft hole of connecting flange 5 through rotating shaft, so that base 6 can rotate (for example ± 30 °) within a certain angle range around rotating shaft. One LED lamp strip is fixed on each base 6 as light source 4 through screw or glue, and the LED lamp strip is formed by a plurality of LED patches in parallel. The light emitting angle of LED lamp strip can be adjusted by rotating base 6, so that the superposition coverage of multi-angle light is realized, and the diffuse reflection surface is facilitated to reflect fully, and the uniformity of light source 4 illumination is improved.

[0021] In this way, the diffuse reflection surface of lamp shade 2 reflects light, and the LED lamp strip forms staggered illumination area through angle adjustment, effectively eliminates dark area, and improves the uniformity of illuminance (minimum illuminance to average illuminance ratio) of the lamp.

[0022] The outer side of the connecting frame 9 is fixed with a metal box 7, which is provided with a through hole. The rotating shaft (connecting end) of the base 6 extends into the box 7 through the through hole. The side wall of the box 7 is provided with a locking bolt 8, the axis of which is perpendicular to the rotating shaft. When the base 6 is adjusted to the target angle, the locking bolt 8 is tightened to abut the end of the rotating shaft, thereby fixing the rotating angle of the base 6. This design ensures stable locking after the angle of the light source is adjusted, avoiding deviation caused by vibration or external force.

[0023] In addition, the connecting frame 9 is provided with a cavity 91 inside, which is provided with a driver 10 for voltage reduction and rectification of the connected power supply to adapt to the working voltage of the LED light strip, so that the household 220V voltage can be directly connected. The LED light strip is provided with a copper connecting terminal 11, which is connected to the output end of the driver 10 through a flexible wire extending to the cavity 91, and the wire is routed along the back of the base 6 to reduce the blocking of light. The fixing of the lamp holder 1 and the connecting frame 9 is realized by the following way: the lamp holder 1 is provided with a mounting groove 12, and the connecting frame 9 is provided with a connecting part 13 extending to the mounting groove 12, the connecting part 13 is inserted into the mounting groove 12 of the lamp holder 1, and the mounting groove 12 and the connecting part 13 are locked by threads. Specifically, the mounting groove 12 of the lamp holder 1 is provided with a first threaded hole 14, and the corresponding position of the connecting part 13 is provided with a second threaded hole 15, and after the locking piece which can form a threaded cooperation with the first threaded hole 14 and the second threaded hole 15 is tightened, the stable connection of the connecting frame 9 and the lamp holder 1 can be realized.

[0024] The specific embodiment is only an explanation of the present application, and is not a limitation of the present application. Those skilled in the art can make modifications to the embodiment without creative contribution after reading the specification, but as long as it is within the scope of the claims of the present application, it is protected by the patent law.

Claims

1. A uniform light guide lens structure, characterized by, The utility model provides a lamp holder, the lamp holder is connected with lamp shade, the lamp shade is equipped with the diffuse reflection surface for carrying out diffuse reflection, the lamp shade and lamp holder form installation cavity between, the installation cavity is equipped with lamp source and connecting frame, the connecting frame is used to install lamp source, the connecting frame bottom is equipped with symmetrical connecting flange, and the both sides connecting flanges are equipped with base, the base is used for fixing lamp source, and the base both ends are rotatably connected to both sides connecting flanges, the base is multiple and is spaced apart to set up, the base is through the rotation adjustment light emitting angle of lamp source, improves the uniformity of lamp source illumination.

2. The uniform light guide lens structure of claim 1, wherein, The outer side of the connecting frame is provided with a box corresponding to the base, one side of the base is provided with a connecting end extending towards the box, the box is rotatably connected with a locking bolt, the locking bolt and the connecting end are perpendicular to each other in the same plane, and the locking bolt is used to tighten the connecting end to fix the rotation angle of the base.

3. The uniform light guide lens structure of claim 1, wherein, The lamp source is an LED lamp strip.

4. The uniform light guide lens structure of claim 3, wherein, The connecting frame is provided with a cavity, the cavity is provided with a driver, the LED lamp strip is provided with a connecting terminal, and the terminal and the driver are electrically connected by a wire.

5. The uniform light guide lens structure of claim 1, wherein, The lamp holder is provided with a mounting groove, the connecting frame is provided with a connecting part extending towards the mounting groove, the connecting part is matched with the mounting groove, the lamp holder is provided with a first threaded hole penetrating through, the first threaded hole is communicated with the mounting groove, the connecting part is provided with a second threaded hole opposite to the first threaded hole, and the second threaded hole and the first threaded hole are fixed by a locking piece.

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