Lighting fixtures

Abstract

This utility model discloses a lamp fixture, relating to the field of lighting technology. The lamp fixture includes: a light source for emitting light; a light-transmitting cover surrounding the light source, the light-transmitting cover refracting the incident light and directing it outwards; and a beam splitter disposed within the light-transmitting cover, positioned along the path of the light rays. The beam splitter transmits a portion of the light rays to form a first light ray and reflects a portion of the light rays toward the light source to form a second light ray. This utility model provides a lamp fixture that increases the lighting angle while maintaining a simplified structure.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and in particular to a lamp. Background Technology

[0002] Currently, most common lighting fixtures on the market use surface-mount LEDs as light-emitting elements. These LEDs are typically point light sources with a small beam angle, generally around 180°, resulting in a limited illumination range and restricting their application in situations requiring wide-angle, uniform lighting. To improve the illumination angle, multiple LEDs are usually arranged in a specific spatial configuration on a three-dimensional structure to create a wider lighting range. However, this method not only makes the lighting fixture structure more complex but also increases the overall weight and manufacturing cost, thus limiting its practical application. Utility Model Content

[0003] The main purpose of this utility model is to provide a lamp that aims to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, this utility model proposes a lamp, comprising: A light source, used to emit light; A light-transmitting cover is arranged around the light source, and the light-transmitting cover is used to refract the incident light and direct it to the outside. A beam splitter is disposed inside the light-transmitting cover and positioned in the path of the light rays. The beam splitter transmits a portion of the light rays to form a first light ray and reflects a portion of the light rays toward the light source to form a second light ray.

[0005] In one embodiment, the light source has a light-emitting surface, the second light beam includes a first beam and a second beam, the first beam and the second beam are respectively located on both sides of the normal of the light-emitting surface, the beam splitter includes a first beam splitting part and a second beam splitting part, the first beam splitting part and the second beam splitting part are respectively located on opposite sides of the normal, the first beam splitting part is used to reflect the first beam, and the second beam splitting part is used to reflect the second beam.

[0006] In one embodiment, the first beam-splitting portion is inclined relative to the light-emitting surface in the cross-section formed by the plane passing through the normal; and / or, the second beam-splitting portion is inclined relative to the light-emitting surface in the cross-section formed by the plane passing through the normal.

[0007] In one embodiment, the first beam splitter and the second beam splitter are symmetrically arranged about the normal.

[0008] In one embodiment, on the cross-section formed by the plane passing through the normal, at least one of the first beam splitter and the second beam splitter bends and extends toward the light-emitting surface.

[0009] In one embodiment, the beam splitter further includes a third beam splitter, which is disposed between the first beam splitter and the second beam splitter, and is arranged parallel to the light-emitting surface.

[0010] In one embodiment, the luminaire further includes: A first diffuser is disposed inside the light-transmitting cover and on the path of the first light ray. The first diffuser is used to refract the first light ray and direct it toward the light-transmitting cover. A second diffuser is disposed inside the light-transmitting cover and on the path of the second light ray. The second diffuser is used to refract the second light ray and direct it toward the light-transmitting cover.

[0011] In one embodiment, the beam splitter is inserted into the inner wall of the light-transmitting cover.

[0012] In one embodiment, the light-transmitting cover has a length direction and a width direction, and the light source includes a plurality of LED beads; The plurality of LED beads are spaced apart along the length direction; and / or the plurality of LED beads are spaced apart along the width direction.

[0013] In one embodiment, the light source is detachably connected to the light-transmitting cover, and the light-transmitting cover and the beam splitter are made of flexible materials.

[0014] In the technical solution of this utility model, by setting a light-transmitting cover around the light source, the light emitted by the light source can be refracted, which can improve the uniformity of brightness in the illumination area. In addition, a beam splitter is set inside the light-transmitting cover. The beam splitter can split the light beam, and the split light beam forms a first light beam along the original direction and a second light beam reflected towards the light source. The first light beam illuminates the front of the lamp, and the second light beam can illuminate the left and right sides and the back of the lamp. A wide range of illumination can be achieved without increasing the number of light sources. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1An exploded view of an embodiment of the lamp provided by this utility model; Figure 2 for Figure 1 A cross-sectional schematic diagram of the embodiment shown; Figure 3 for Figure 1 A schematic diagram of the light path in the illustrated embodiment; Figure 4 This is a cross-sectional schematic diagram of another embodiment of the lamp provided by this utility model.

[0017] Explanation of icon numbers: 10. First ray; 20. Second ray; 21. First beam; 22. Second beam; 30. Light-emitting surface; 40. Normal; 100. Light source; 110. Lamp bead; 200. Light-transmitting cover; 300. Beam splitter; 310. First beam splitter; 320. Second beam splitter; 330. Third beam splitter; 400. First diffuser; 500. Second diffuser.

[0018] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] 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 scope of protection of the present utility model.

[0020] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0021] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0022] This application provides a lighting fixture, including: Light source 100 is used to emit light; A light-transmitting cover 200 is arranged around the light source 100. The light-transmitting cover 200 is used to refract the incident light and direct it to the outside. A beam splitter 300 is disposed inside a light-transmitting cover 200 and is positioned in the path of light. The beam splitter 300 transmits a portion of the light to form a first ray 10 and reflects a portion of the light toward the light source 100 to form a second ray 20.

[0023] The lighting fixtures in this solution can be used as wall washer lights or other applications requiring a wide-angle illumination range, such as... Figure 1 As shown, the lamp includes a light source 100, which consists of a heat sink and a circuit board. The heat sink is located on the back of the circuit board to dissipate heat. Light-emitting elements such as LED beads 110 are located on the front of the circuit board. These light-emitting elements extend into a light-transmitting cover 200 and emit light. The light-transmitting cover 200 can be a semi-transparent shell structure with light refraction capabilities. It can be made of plastic or glass. The light-transmitting cover 200 is hollow and cylindrical. Its curved design changes the direction of light propagation, allowing the light emitted by the light source 100 to be refracted within the cover and diffused outwards, ensuring uniform illumination. Furthermore, the angle at which the light-transmitting cover 200 extends around the light source 100 can be set according to the required illumination range. Beam splitter 300 is an optical element with partial transmission and partial reflection functions. Beam splitter 300 is placed in the path of light emitted by light source 100. Beam splitter 300 can be made of glass or other transparent materials. The surface of the optical mirror is coated with an optical thin film. The optical thin film allows some light to pass through and reflects other light, thus splitting the light beam. In specific applications, the transmission and reflection ratio can be controlled by adjusting parameters such as film thickness.

[0024] like Figure 2 As shown, during operation, the light source 100 first emits light. When this light propagates to the beam splitter 300, part of the light passes through the beam splitter 300 to form the first ray 10, which continues to propagate forward; the other part of the light is reflected by the beam splitter 300 to form the second ray 20, which propagates towards the side of the light source 100. Both the first ray 10 and the second ray 20 are then refracted by the light-transmitting cover 200 and finally directed towards the external environment. In this process, the refraction of the light-transmitting cover 200 further optimizes the light distribution and improves the uniformity of illumination. In the above scheme, by setting the beam splitter 300, the light from a single light source 100 can be divided into two beams propagating in different directions, allowing the light that originally only propagated forward to partially change direction. This retains the forward illumination range while changing the path of some light through reflection, thus expanding the overall illumination coverage angle. The above design breaks through the limitation of the traditional 180° light emission angle of lamps. By adjusting the angle of light reflected by the beam splitter 300, a lighting range of nearly 360° can be achieved. At the same time, due to the use of a single light source 100 combined with optical elements, the number of light sources 100 is reduced, the overall structure of the lamp is simplified, and the manufacturing cost and weight are reduced.

[0025] like Figure 3 As shown, in another embodiment of this application, the light source 100 has a light-emitting surface 30, the second light ray 20 includes a first light beam 21 and a second light beam 22, the first light beam 21 and the second light beam 22 are respectively located on both sides of the normal 40 of the light-emitting surface 30, and the beam splitter 300 includes a first beam splitter 310 and a second beam splitter 320, the first beam splitter 310 and the second beam splitter 320 are respectively located on opposite sides of the normal 40, the first beam splitter 310 is used to reflect the first light beam 21, and the second beam splitter 320 is used to reflect the second light beam 22.

[0026] The light source 100 has a light-emitting surface 30 facing the front of the lamp. Light-emitting elements such as LED beads 110 are disposed on the light-emitting surface 30. The light-emitting surface 30 also has a normal 40 perpendicular to itself, and the light-emitting surface 30 can be symmetrically arranged about the normal 40. The second ray 20 includes a first beam 21 and a second beam 22. The first beam 21 and the second beam 22 are located on opposite sides of the normal 40 of the light-emitting surface 30. The beam splitter 300 is divided into a first beam splitter 310 and a second beam splitter 320, both located on opposite sides of the normal 40. The first beam splitter 310 and the second beam splitter 320 can be configured as planar or curved surfaces, such as inclined planes or concave reflective surfaces. The first beam splitter 310 is used to reflect the first beam 21, and the second beam splitter 320 is used to reflect the second beam 22. The first beam 21 and the second beam 22 can be reflected by the first beam splitter 310 and the second beam splitter 320 to a predetermined direction, respectively. For example, the first beam splitter 310 and the second beam splitter 320 can be arranged in a V-shape, forming a certain angle, so that the first beam 21 is reflected to... Figure 3 To the left rear of the central light source 100, the second beam 22 is reflected to Figure 3 To the right rear of the light source 100.

[0027] In the above scheme, the first beam splitter 310 reflects the first beam 21 located to the left of the normal 40 to the left rear of the luminaire, and the second beam splitter 320 reflects the second beam 22 located to the right of the normal 40 to the right rear of the luminaire. The beams on both sides of the normal 40 maintain independent propagation paths after reflection, avoiding crossing and overlapping, thereby improving lighting efficiency and light utilization efficiency. In addition, the illumination range of the first beam 21 and the second beam 22 can be independently adjusted by adjusting the positions of the first beam splitter 310 and the second beam splitter 320 respectively, making the design more flexible.

[0028] like Figure 2 As shown, in another embodiment of this application, the first beam splitter 310 is inclined relative to the light-emitting surface 30 on the cross-section formed by the plane passing through the normal 40; and / or, the second beam splitter 320 is inclined relative to the light-emitting surface 30 on the cross-section formed by the plane passing through the normal 40.

[0029] in, Figure 3 The cross-section is formed by the plane passing through the normal 40. On this cross-section, the first beam splitter 310 is inclined relative to the light-emitting surface 30, and the second beam splitter 320 is also inclined relative to the light-emitting surface 30. The inclination angles of the first beam splitter 310 and the second beam splitter 320 can be set according to requirements. For example, the angle between the first beam splitter 310 and the light-emitting surface 30 can be 15° or 30°, etc., and the angle between the second beam splitter 320 and the light-emitting surface 30 can also be 15° or 30°, etc. Of course, the first beam splitter... The light section 310 and the second beam splitter 320 are tilted symmetrically about the normal 40, or they can be tilted asymmetrically. For example, the first beam splitter 310 is tilted at 30° and the second beam splitter 320 is tilted at 15°. By adjusting the tilt angle of the first beam splitter 310 and the second beam splitter 320, the reflection direction of the first beam 21 and the second beam 22 can be controlled, thereby realizing flexible adjustment of the lighting range of the lamp. This ensures the separation of the first beam 21 and the second beam 22 and also controls the propagation direction of the reflected light.

[0030] In one embodiment of this application, the first beam splitter 310 and the second beam splitter 320 are symmetrically arranged about the normal 40. Specifically, the first beam splitter 310 and the second beam splitter 320 can form a V-shaped structure, and the included angle between them can be set to an obtuse angle. In addition, the first beam splitter 310 and the second beam splitter 320 have equal and opposite tilt angles relative to the normal 40, so that the reflection paths of the first beam 21 and the second beam 22 are symmetrical about the normal 40. This makes the light intensity distribution on both sides of the light source 100 tend to be consistent, and the first beam 21 and the second beam 22 form a mirror relationship in spatial distribution, ensuring the consistency of brightness on the left and right sides of the lamp, avoiding the problem of uneven brightness in local areas and angles, and improving the overall illumination uniformity of the lamp.

[0031] like Figure 2 In another embodiment of this application, on the cross-section formed by the plane passing through the normal 40, at least one of the first beam splitting portion 310 and the second beam splitting portion 320 bends and extends toward the light-emitting surface 30.

[0032] Among them, the first beam splitter 310 and the second beam splitter 320 are in Figure 2 The cross-section of the beam splitter can be arc-shaped or segmented, and both the first beam splitter 310 and the second beam splitter 320 are bent toward the light source 100. Taking the arc-shaped structure as an example, the centers of curvature of the first beam splitter 310 and the second beam splitter 320 can be located on the left and right sides of the light source 100. Figure 3 It is known that the angle of incidence of the end of the first beam splitter 310 closer to the light source 100 is greater than the angle of incidence of the end of the first beam splitter 310 farther from the light source 100. Thus, the end of the first beam splitter 310 closer to the light source 100 reflects light at a larger angle, forming a projection direction farther from the light source 100; while the end of the first beam splitter 310 farther from the light source 100 reflects light at a smaller angle, forming a projection direction closer to the light source 100. Compared to a planar shape, the first beam splitter 310 can reflect the second beam 22 closer to the light source 100, increasing the angular range of the lamp's illumination. This also better covers the curved area of ​​the light-transmitting cover 200, further improving the uniformity of light distribution within the light-transmitting cover 200, thereby enhancing the overall lighting effect of the lamp. Furthermore, the second beam splitter 320, using an arc shape or a segmented zigzag structure, can achieve a similar effect to the first beam splitter 310, which will not be elaborated upon here.

[0033] like Figure 1 and Figure 2 In another embodiment of this application, the beam splitter 300 further includes a third beam splitter 330, which is disposed between the first beam splitter 310 and the second beam splitter 320, and is arranged parallel to the light-emitting surface 30.

[0034] Among them, the first beam splitter 310 and the second beam splitter 320 are in Figure 2 The light source 100 is arranged at intervals in the left and right directions. The third beam splitter 330 is configured to cover the area between the first beam splitter 310 and the second beam splitter 320. The third beam splitter 330 can be made of the same material as the first beam splitter 310 and the second beam splitter 320. The third beam splitter 330 can have a planar structure and is arranged parallel to the light emitting surface 30. Specifically, the third beam splitter 330 receives light from the central area of ​​the light source 100. The first beam 21 passing through the first beam splitter 310 can reduce the angle of refraction and maintain the direction of propagation close to the original light. By setting the third beam splitter 330, the light in the positive area of ​​the lamp is uniformly distributed, and the light scattering or attenuation caused by the bending of the first beam splitter 310 or the second beam splitter 320 in the middle area is avoided, thereby improving the overall lighting effect of the lamp.

[0035] like Figure 1 and Figure 2 In another embodiment of this application, the lamp further includes: The first diffuser 400 is disposed inside the light-transmitting cover 200 and on the path of the first light ray 10. The first diffuser 400 is used to refract the first light ray 10 and direct it toward the light-transmitting cover 200. The second diffuser 500 is disposed inside the light-transmitting cover 200 and on the path of the second light ray 20. The second diffuser 500 is used to refract the second light ray 20 and direct it toward the light-transmitting cover 200.

[0036] Both the first diffuser 400 and the second diffuser 500 can be curved or flat panels. Both can be made of semi-transparent material. The first diffuser 400 is installed in the path of the first light ray 10, and the second diffuser 500 is installed in the path of the second light ray 20. Both ends of the first diffuser 400 and the second diffuser 500 can be fixedly connected to the inner wall of the light-transmitting cover 200. The first light ray 10 separated by the beam splitter 300 needs to pass through the first diffuser 400 and be refracted before reaching the light-transmitting cover 200. The second light ray 20 needs to pass through the second diffuser 500 and be refracted before reaching the light-transmitting cover 200. When the diffuser is made of semi-transparent material, both the first light ray 10 and the second light ray 20 will undergo two refraction processes, thus further improving the uniformity of the emitted light. Of course, the light-transmitting cover 200 can also be made of transparent material to ensure the brightness of the emitted light. The choice of setting can be flexibly made according to requirements and is not limited here. Additionally, as... Figure 4 In another embodiment, the first diffuser 400 and the second diffuser 500 may also be removed from the light-transmitting cover 200, relying solely on the light-transmitting cover 200 to improve the uniformity of light, thus enabling the luminaire to be adapted to more application scenarios.

[0037] In another embodiment of this application, the beam splitter 300 is inserted into the inner wall of the light-transmitting cover 200. The insertion structure can be flexibly designed according to the shape of the light-transmitting cover 200 and the beam splitter 300. For example, the inner wall of the light-transmitting cover 200 can be provided with a protruding structure, and slots with openings can be formed on the protrusions. During assembly, the beam splitter 300 can be inserted into the light-transmitting cover 200 by translating along its length direction, and both ends of the beam splitter 300 can be inserted into the slots. The slots and the beam splitter 300 cooperate to achieve positioning. The length direction of the light-transmitting cover 200 is... Figure 2 The direction is perpendicular to the paper. Through the above-mentioned plug-in structure design, the beam splitter 300 can be quickly assembled and the installation position can be ensured. At the same time, the production process is simplified, and the replacement and maintenance of the beam splitter 300 or the light-transmitting cover 200 are convenient.

[0038] like Figure 4 In another embodiment of this application, the light-transmitting cover 200 has a length direction and a width direction, wherein the length direction is... Figure 4 The center is perpendicular to the paper surface, and the width direction is... Figure 4 In this design, the light source 100 includes multiple LED beads 110, arranged at intervals along the length direction and / or at intervals along the width direction. Specifically, when the LED beads 110 are arranged at intervals along the length direction, their light rays, after passing through the light-transmitting cover 200, form a continuously extending illumination area, thus expanding the illumination range of the luminaire along the length direction. When the LED beads 110 are arranged at intervals along the width direction, the light rays emitted by the LED beads 110 overlap within the light-transmitting cover 200, increasing brightness. The above two solutions can be used in combination or individually to meet different application scenarios, expanding the application scenarios of the luminaire.

[0039] like Figure 2 In another embodiment of this application, the light source 100 and the light-transmitting cover 200 are detachably connected, and the light-transmitting cover 200 and the beam splitter 300 are made of flexible material. A groove can be provided on the back of the light-transmitting cover 200, into which the light source 100 can be embedded and fixed, and the lamp bead 110 can extend into the light-transmitting cover 200. The light-transmitting cover 200 and the light source 100 can be fixed by a detachable connection such as snap-fit, allowing the user to assemble or disassemble them for easy replacement of the light-transmitting cover 200 or the light source 100. Furthermore, the light-transmitting cover 200 and the beam splitter 300 can be made of flexible material, such as silicone or other soft plastics, allowing the light-transmitting cover 200 and the beam splitter 300 to be rolled and bent for easy storage.

[0040] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A luminaire characterized by, include: A light source, used to emit light; A light-transmitting cover is arranged around the light source, and the light-transmitting cover is used to refract the incident light and direct it to the outside. A beam splitter is disposed inside the light-transmitting cover and positioned in the path of the light rays. The beam splitter transmits a portion of the light rays to form a first ray and reflects a portion of the light rays toward the light source to form a second ray.

2. The luminaire of claim 1, wherein, The light source has a light-emitting surface, and the second light beam includes a first beam and a second beam. The first beam and the second beam are respectively located on both sides of the normal of the light-emitting surface. The beam splitter includes a first beam splitter and a second beam splitter. The first beam splitter and the second beam splitter are respectively located on opposite sides of the normal. The first beam splitter is used to reflect the first beam, and the second beam splitter is used to reflect the second beam.

3. The luminaire of claim 2, wherein, In the cross-section formed by the plane passing through the normal, the first beam splitter is inclined relative to the light-emitting surface; and / or, in the cross-section formed by the plane passing through the normal, the second beam splitter is inclined relative to the light-emitting surface.

4. The luminaire of claim 3, wherein, The first beam splitter and the second beam splitter are symmetrically arranged about the normal.

5. The luminaire as described in any one of claims 2 to 4, characterized in that, On the cross-section formed by the plane passing through the normal, at least one of the first beam splitter and the second beam splitter bends and extends toward the light-emitting surface.

6. The lamp as described in claim 5, characterized in that, The beam splitter further includes a third beam splitter, which is disposed between the first beam splitter and the second beam splitter, and is arranged parallel to the light-emitting surface.

7. The lamp as described in claim 1, characterized in that, The lighting fixture also includes: A first diffuser is disposed inside the light-transmitting cover and on the path of the first light ray. The first diffuser is used to refract the first light ray and direct it toward the light-transmitting cover. A second diffuser is disposed inside the light-transmitting cover and on the path of the second light ray. The second diffuser is used to refract the second light ray and direct it toward the light-transmitting cover.

8. The lamp as described in claim 1, characterized in that, The beam splitter is inserted into the inner wall of the light-transmitting cover.

9. The lamp as described in claim 1, characterized in that, The light-transmitting cover has a length direction and a width direction, and the light source includes multiple LED beads; The plurality of LED beads are spaced apart along the length direction; and / or the plurality of LED beads are spaced apart along the width direction.

10. The lamp as described in claim 1, characterized in that, The light source and the light-transmitting cover are detachably connected, and the light-transmitting cover and the beam splitter are made of flexible materials.

Images