Light guide device and lamp

Abstract

The light guide device comprises a first light guide part and a second light guide part, the first light guide part is provided with a light inlet groove, the first light guide part is provided with a first light inlet face and a second light outlet face, the first light inlet face is located in the light inlet groove, and the second light outlet face is located in the light outlet groove. A part of emergent light of a light source of the lamp can be emitted from the first light emitting surface after passing through the first light incident surface; the second light guide part is connected to the first light guide part, the second light guide part extends from the first light guide part in the direction away from the first light guide part, the second light guide part is provided with a second light inlet face and a second light outlet face, and the second light inlet face is located at the joint of the first light guide part and the second light guide part; and the other part of emergent light of the light source of the lamp can be emitted from the second emergent surface after passing through the second incident surface. Thus, the emergent light of the light source of the lamp is split through the light guide device, so that the lamp achieves various light emitting effects, meanwhile, the use number of the light source is reduced, and the overall size of the lamp is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the lighting technical field, in particular to a light guide device and a lamp. BACKGROUND

[0002] The lamp has the function of illumination. However, in the related art, in order to realize a plurality of different light emission effects, a plurality of light sources are often used to correspond to different light emission positions of the light guide device respectively, resulting in a large overall volume of the lamp. CONTENT OF THE UTILITY MODEL

[0003] The utility model embodiment provides a light guide device and a lamp to improve at least one of the above problems.

[0004] The utility model embodiment achieves the above-mentioned purposes through the following technical solutions.

[0005] The utility model embodiment provides a light guide device, which comprises a first light guide member and a second light guide member. The first light guide member is provided with a light inlet groove. The first light guide member has a first light inlet surface and a second light outlet surface. The first light inlet surface is located in the light inlet groove. Part of the emitted light of the light source of the lamp can pass through the first light inlet surface and be emitted from the first light outlet surface. The second light guide member is connected to the first light guide member. The second light guide member extends from the first light guide member in a direction away from the first light guide member. The second light guide member has a second light inlet surface and a second light outlet surface. The second light inlet surface is located at the connection between the first light guide member and the second light guide member. Another part of the emitted light of the light source of the lamp can pass through the second light inlet surface and be emitted from the second light outlet surface.

[0006] In some embodiments, the first light inlet surface comprises a first sub-light inlet surface and a second sub-light inlet surface arranged oppositely and at intervals. The first sub-light inlet surface and the second sub-light inlet surface are respectively located on both sides of the second light inlet surface. Part of the emitted light of the light source passes through the first sub-light inlet surface and the second sub-light inlet surface respectively and is emitted from the first light outlet surface to the outside of the lamp.

[0007] In some embodiments, the first light guide member is arranged in a plate shape. The first light outlet surface is located on the side of the first light guide member away from the light inlet groove.

[0008] In some embodiments, the first light guide member is further provided with a diffuse reflection structure. The diffuse reflection structure is located on the peripheral side of the first light outlet surface.

[0009] In some embodiments, the lamp further comprises an anti-reflection film. The anti-reflection film is arranged on the first light inlet surface and / or the second light inlet surface.

[0010] In some embodiments, the second light guide comprises a light guide portion and a milky translucent portion, the milky translucent portion is located at one end of the light guide portion away from the first light guide, the second light exit surface is located on the surface of the milky translucent portion, the light guide portion is connected to the milky translucent portion and the first light guide, and the second light entrance surface is located at the connection between the light guide portion and the first light guide.

[0011] In some embodiments, the cross section of the light guide device is in the shape of an inverted T, and the second light guide and the first light guide extend in the same direction.

[0012] The utility model discloses an embodiment provides a lamp, and the lamp comprises a light source and the light guide device of any of the above embodiments, and the light source is arranged opposite to the light entrance groove.

[0013] In some embodiments, the light source comprises a circuit board and a lamp bead, the lamp bead is mounted on the side of the circuit board facing the first light guide, and the circuit board is arranged in layers with the first light guide.

[0014] In some embodiments, the side of the first light guide facing the circuit board is provided with a convex portion, the convex portion abuts against the circuit board, the first light guide is arranged opposite to and spaced apart from the circuit board, and the lamp bead is located between the first light guide and the circuit board.

[0015] In some embodiments, the number of light guide structures is multiple, and the multiple first light guides are arranged in one piece.

[0016] In the light guide device and the lamp provided by the utility model, the light guide device comprises a first light guide and a second light guide, the first light guide is provided with a light entrance groove, the first light guide has a first light entrance surface and a second light exit surface, the first light entrance surface is located at the light entrance groove, and part of the light emitted by the light source of the lamp can be emitted from the first light exit surface after passing through the first light entrance surface; the second light guide is connected to the first light guide, the second light guide extends from the first light guide in a direction away from the first light guide, the second light guide has a second light entrance surface and a second light exit surface, the second light entrance surface is located at the connection between the first light guide and the second light guide, and the other part of the light emitted by the light source of the lamp can be emitted from the second light exit surface after passing through the second light entrance surface. In this way, the light emitted by the light source of the lamp is split by the first light guide and the second light guide of the light guide device, so that the light emitted by the light source is emitted from the first light exit surface and the second light exit surface to the outside of the lamp, thereby reducing the number of light sources used while realizing multiple light emission effects, and thus helping to reduce the overall size of the lamp. In addition, the first light guide and the second light guide of the light guide device can split the light emitted by the light source, so that the light source emits light from multiple light exit surfaces, thereby making the lamp have multiple light emission effects, and thus helping to improve the utilization efficiency of the light source of the lamp. Moreover, the light emitted by the light source of the lamp is emitted from the first light exit surface and the second light exit surface, so that the light emission effect of the lamp has synchronism (for example, the color and brightness of multiple light exit surfaces are the same), and the lamp is convenient for controlling the light emission effect. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of the light guide device provided in this embodiment of the present invention is shown.

[0019] Figure 2 It shows Figure 1 A schematic diagram of the structure of the central light guiding device from another perspective.

[0020] Figure 3 A schematic diagram of the structure of the lamp provided in the embodiment of this utility model is shown.

[0021] Figure 4 It shows Figure 3 A schematic diagram of the exploded structure of a lamp.

[0022] Figure 5 It shows Figure 4 A schematic diagram of part of the structure of the lamp.

[0023] Figure 6 It shows Figure 5 A structural diagram of part of the lamp fixture from another perspective.

[0024] Figure 7 It shows Figure 6 A schematic diagram of the optical path of the light emitted from the light source through the first and second light guides.

[0025] Explanation of icon numbers:

[0026] Lamp 10, light guide device 20, light source 100, circuit board 110, lamp bead 120, first light guide 200, first light-incident surface 202, first sub-light-incident surface 202a, second sub-light-incident surface 202b, first light-out surface 203, light-incident groove 204, diffuse reflection structure 205, protrusion 110, second light guide 300, second light-incident surface 301, second light-out surface 302, light guide part 310, milky white semi-transparent part 320, lampshade 400, base 500. Detailed Implementation

[0027] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by the person skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] The technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application.

[0029] Please refer to Figures 1 to 4 The present application provides a light guide device 20, which comprises a first light guide member 200 and a second light guide member 300. The first light guide member 200 is provided with a light inlet groove 204. The first light guide member 200 has a first light inlet surface 202 and a second light outlet surface 302. The first light inlet surface 202 is located at the light inlet groove 204. A part of the emitted light of the light source 100 of the lamp 10 can pass through the first light inlet surface 202 and then be emitted from the first light outlet surface 203. The second light guide member 300 is connected to the first light guide member 200. The second light guide member 300 extends from the first light guide member 200 in a direction away from the first light guide member 200. The second light guide member 300 has a second light inlet surface 301 and a second light outlet surface 302. The second light inlet surface 301 is located at the connection between the first light guide member 200 and the second light guide member 300. Another part of the emitted light of the light source 100 of the lamp 10 can pass through the second light inlet surface 301 and then be emitted from the second light outlet surface 302. In this way, the emitted light of the light source 100 of the lamp 10 is split by the first light guide member 200 and the second light guide member 300 of the light guide device 20, so that the emitted light of the light source 100 is emitted from the first light outlet surface 203 and the second light outlet surface 302 to the outside of the lamp 10, thereby reducing the number of light sources 100 while achieving multiple light emission effects, and further helping to reduce the overall volume of the lamp 10.

[0030] In addition, the first light guide member 200 and the second light guide member 300 of the light guide device 20 can split the emitted light of the light source 100, so that the light source 100 emits light from multiple light outlet surfaces, thereby enabling the lamp 10 to have multiple light emission effects, and further helping to improve the utilization efficiency of the light source 100 of the lamp 10.

[0031] Moreover, the light emitted by the light source 100 of the lamp 10 is emitted from the first light exit surface 203 and the second light exit surface 302 respectively, so that the light emitting effect of the lamp 10 has synchronism (e.g. the color and brightness of the multiple light exit surfaces are the same), which facilitates the control of the light emitting effect of the lamp 10.

[0032] In some embodiments, the shape of the first light exit surface 203 and the shape of the second light exit surface 302 are different, for example, the shape of the first light exit surface 203 can be a flat surface, and the shape of the second light exit surface 302 can be a curved surface; or for example, the shape of the first light exit surface 203 is a regular figure, and the shape of the second light exit surface 302 is an irregular figure, so that the light emitted by the light source 100 is emitted from the first light exit surface 203 and the second light exit surface 302 respectively to the outside of the lamp 10, thereby realizing multiple light emitting effects of the lamp 10.

[0033] Please refer to Figure 5 and Figure 6 In some embodiments, the design of the light inlet groove 204 can be adjusted according to actual needs, such as changing the depth, width or shape of the groove, to adapt to different types of light sources 100 and light inlet requirements. In this way, the light inlet groove 204 can guide the light emitted by the light source 100 to enter the first light inlet surface 202 and the second light inlet surface 301, so that the light emitted by the light source 100 can be more concentrated from the first light inlet surface 202 and the second light inlet surface 301, thereby helping to reduce the risk of loss of light emitted by the light source 100.

[0034] In addition, the lamp 10 guides the light to the first light inlet surface 202 of the first light guide 200 and the second light inlet surface 301 of the second light guide 300 through the light inlet groove 204, so that the lamp 10 can more accurately control the path of the light in order to realize the light splitting of the light emitted by the light source 100.

[0035] Please refer to Figure 2In some embodiments, the first light inlet surface 202 can include a first sub-light inlet surface 202a and a second sub-light inlet surface 202b arranged oppositely and spaced apart, and the first sub-light inlet surface 202a and the second sub-light inlet surface 202b can be respectively located on both sides of the second light inlet surface 301. A part of the light emitted by the light source 100 can be emitted from the first light outlet surface 203 to the outside of the lamp 10 after passing through the first sub-light inlet surface 202a and the second sub-light inlet surface 202b respectively. The first sub-light inlet surface 202a and the second sub-light inlet surface 202b can be respectively located on both sides of the second light inlet surface 301, and the first sub-light inlet surface 202a, the second sub-light inlet surface 202b and the second light inlet surface 301 together enclose the light inlet groove 204, so that the cross section of the light inlet groove 204 can be roughly arranged in a trapezoidal shape. In this way, the first sub-light inlet surface 202a and the second sub-light inlet surface 202b are arranged on both sides of the second light inlet surface 301, so that the lamp 10 can better control the proportion of light incident to the first light guide 200 and the second light guide 300, and better control the angle of the light emitted by the light source 100 incident to the first light inlet surface 202 and the second light inlet surface 301.

[0036] In addition, since the first sub-light inlet surface 202a and the second sub-light inlet surface 202b are respectively located on both sides of the second light inlet surface 301, the light emitted by the light source 100 can be uniformly incident to the first sub-light inlet surface 202a, the second sub-light inlet surface 202b and the second light inlet surface 301.

[0037] In some embodiments, the first light guide 200 can be made of transparent acrylic material, so that the first light guide 200 has high light transmittance, can effectively transmit light, and reduce the loss of light in the transmission process, so that a part of the light emitted by the light source 100 can be uniformly emitted from the first light guide 200, thereby helping to improve the light efficiency and utilization of the light emitted by the light source 100.

[0038] In some embodiments, the first light guide 200 can be arranged in a plate shape. The first light outlet surface 203 can be located on the side of the first light guide 200 away from the light inlet groove 204. In this way, a part of the light emitted by the light source 100 can be uniformly emitted from one of the entire plate surfaces of the first light guide 200, forming a surface light emitting effect, thereby helping to reduce the risk of bright spots or shadows in the first light guide 200.

[0039] Please refer to Figure 6In some embodiments, the first light guide 200 can further be provided with a diffuse reflection structure 205, which can be located on the periphery of the first light exit surface 203. The diffuse reflection structure 205 can be a series of convex or concave spherical, pyramidal, cylindrical, or other structures, or a series of white ink printed dots. In this way, when part of the light emitted by the light source 100 enters the first light guide 200, the light can be diffusely reflected within the first light guide 200 when it contacts the diffuse reflection structure 205, thereby causing the light to be more evenly distributed within the first light guide 200, which in turn helps to reduce the uneven brightness caused by the excessive concentration of light in certain areas of the first light guide 200.

[0040] In addition, the first light guide 200 can achieve uniform surface light emission through the diffuse reflection structure 205, thereby helping to create a softer and more comfortable lighting environment.

[0041] In some embodiments, the lamp 10 can further include an anti-reflection film, which can be disposed on the first light entrance surface 202 and / or the second light entrance surface 301. In this way, disposing the anti-reflection film on the first light entrance surface 202 and / or the second light entrance surface 301 can reduce the reflection loss of light on the first light entrance surface 202 and / or the second light entrance surface 301, thereby allowing more light emitted by the light source 100 to enter the first light guide 200 and / or the second light guide 300, which in turn helps to reduce the loss of light energy caused by reflection on the first light entrance surface 202 and / or the second light entrance surface 301.

[0042] Please refer to Figure 6 and Figure 7 In some embodiments, the second light guide 300 includes a light guide portion 310 and a milky white semi-transparent portion 320, the milky white semi-transparent portion 320 being located at the end of the light guide portion 310 away from the first light guide 200, the second light exit surface 302 being located on the surface of the milky white semi-transparent portion 320, the light guide portion 310 being connected to the first light guide 200 and the milky white semi-transparent portion 320, and the second light entrance surface 301 being located at the connection between the light guide portion 310 and the first light guide 200. In this way, part of the light emitted by the light source 100 passes through the light guide portion 310 and exits the lamp 10 from the milky white semi-transparent portion 320. The milky white semi-transparent portion 320 can be made of transparent acrylic or can be made by adding diffusion particles to PC material. In this way, another part of the light emitted by the light source 100 can be uniformly diffused by the milky white semi-transparent portion 320 after passing through the light guide portion 310. The milky white semi-transparent portion 320 can function to diffuse light, making the light emitted from the second light exit surface 302 more uniform and soft.

[0043] In some embodiments, the side surface of the light guide part 310 can be provided with a reflective film or a reflective lens, i.e. the side surface between the second light guide part 300 between the second light incident surface 301 and the second light exit surface 302 can be provided with a reflective film or a reflective lens, which helps to ensure that another part of the light emitted by the light source 100 can be emitted from the second light exit surface 302 after passing through the second light incident surface 301.

[0044] In other embodiments, the side surface of the light guide part 310 is not treated for light shielding or reflection, and another part of the light emitted by the light source 100 can also be emitted from the side surface of the light guide part 310, thereby helping to increase the light exit area of the second light guide part 300 and the illumination range of the lamp 10.

[0045] In some embodiments, the milky white semi-transparent part 320 can be arranged along the edge of the light guide part 310, so that the light can be uniformly diffused at the edge after passing through the light guide part 310, thereby helping to make the light more uniform when emitted, and thereby helping to reduce the risk of local over-brightness or over-darkness of the light emitted by the light source 100 after passing through the second light guide part 300.

[0046] In some embodiments, the cross section of the light guide device 20 is arranged in an inverted T shape, and the second light guide part 300 and the first light guide part 200 extend in the same direction. The length direction of the first light guide part 200 and the length direction of the second light guide part 300 are parallel or substantially parallel. The height direction of the second light guide part 300 can be parallel or substantially parallel to the direction from the first light guide part 200 to the direction away from the first light guide part 200. In this way, the connection between the first light guide part 200 and the second light guide part 300 is more compact, reducing unnecessary gaps. This not only helps to improve the structural stability of the entire device, but also ensures that the light loss during transmission is minimized.

[0047] In some embodiments, the first light guide part 200 and the second light guide part 300 are integrally formed, thereby helping to reduce the assembly process of the first light guide part 200 and the second light guide part. In other embodiments, the first light guide part 200 and the second light guide part 300 can be separately formed, thereby facilitating the manufacture of the first light guide part 200 and the second light guide part 300.

[0048] In some embodiments, the second light guide part 300 can be made of transparent acrylic, so that the second light guide part 300 has a high light transmittance, thereby enabling the second light guide part 300 to effectively transmit light and reduce light loss during transmission.

[0049] Please refer to Figures 3 to 7The utility model discloses a lamp 10, the lamp 10 includes light guide device 20 and light source 100, and light source 100 is opposite with the light inlet groove 204 arrangement. Wherein, the width size of light inlet groove 204 can be greater than the width of the actual luminous surface of light source 100. Make light inlet groove 204 can effectively capture the more light of light source 100 emission, thereby make the emergent light of light source 100 can be guided into first light guide piece 200 and second light guide piece 300, instead of dissipating in the air, and then help to improve the collection efficiency of the emergent light of light source 100.

[0050] The specific structure of light guide device 20 can refer to the above-mentioned embodiment, since the lamp 10 adopts all the technical solutions of the above-mentioned embodiments, it has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0051] In some embodiments, the light source 100 can include a circuit board 110 and a lamp bead 120, wherein the lamp bead 120 can be an LED lamp bead 120 or a laser, etc. The lamp bead 120 is installed on the side of the circuit board 110 facing the first light guide piece 200, and the circuit board 110 can be stacked with the first light guide piece 200. In this way, the circuit board 110 is stacked with the first light guide piece 200, so that the overall structure of the lamp 10 is more compact, reducing unnecessary space occupation, thereby helping to reduce the volume of the lamp 10.

[0052] In addition, the lamp 10 can install the lamp bead 120 on the side of the circuit board 110 facing the first light guide piece 200, so that the light emitted by the lamp bead 120 can directly enter the first light guide piece 200, reducing the scattering loss of light in the air, thereby helping to improve the utilization rate of the emergent light of the light source 100.

[0053] In some embodiments, the number of lamp beads 120 can be multiple, and the multiple lamp beads 120 can be arranged in sequence along the length direction of the circuit board 110, that is, the multiple lamp beads 120 can be arranged in a row. A part of the emergent light of the lamp bead 120 is emitted from the first light exit surface 203 after passing through the first light entrance surface 202, and another part of the emergent light of the lamp bead 120 is emitted from the second light exit surface 302 after passing through the second light entrance surface 301, so that a single row of lamp beads 120 can realize multiple light emission effects of the lamp 10.

[0054] In some embodiments, the first light guide 200 is provided with a protrusion 110 on a side facing the circuit board 110, the protrusion 110 abuts against the circuit board 110, the first light guide 200 is arranged opposite and spaced apart from the circuit board 110, and the lamp bead 120 is located between the first light guide 200 and the circuit board 110. In this way, the protrusion 110 can make the first light guide 200 have a gap with the circuit board 110, so that the lamp bead 120 has a certain distance to the first light guide 200, so that the emitted light of the lamp bead 120 can be more uniformly incident from the first light-incident surface 202 and the second light-incident surface 301.

[0055] In some embodiments, the lamp 10 can further include a lampshade 400, the lampshade 400 can be enclosed with the circuit board 110 to form an accommodation space, the accommodation space can have an opening, the first light guide 200 and the second light guide 300 can be located in the accommodation space, and the second light- emitting surface 302 can be exposed to the opening. In this way, the design of the lampshade 400 can prevent the user from directly contacting the light source 100 or the light guide, thereby improving the safety of use and avoiding burns or other accidental injuries.

[0056] In addition, the accommodation space enclosed by the lampshade 400 and the circuit board 110 can better utilize the space, so that the internal structure of the lamp 10 is more compact, reduces unnecessary space occupation, and helps to reduce the volume of the lamp 10, making it more portable and easy to install.

[0057] In some embodiments, the lamp 10 can further include a base 500, one end of the lampshade 400 can be mounted to the base 500, and when the base 500 is placed on a placement plane, the base 500 can make the lamp 10 as a whole more stable. The center of gravity of the lamp 10 as a whole is lower, and it is not easy to tip over, thereby enhancing the stability of the lamp 10.

[0058] In some embodiments, the lampshade 400 can extend in the vertical direction, so that the lamp 10 can better utilize the vertical space and reduce the occupation of the horizontal space.

[0059] In some embodiments, the number of light guide structures is multiple, and the multiple first light guides 200 are integrally formed, thereby helping to reduce the assembly process of the lamp 10.

[0060] Based on the above-mentioned embodiments, part of the light emitted by the light source 100 enters the interior of the first light guide 200 from the first sub-light-incident surface 202a and the second sub-light-incident surface 202b, respectively, and the light in the interior of the first light guide 200 is diffused by the diffuse reflection structure 205 and emitted from the first light- emitting surface 203, thereby realizing the surface light emitting effect. Another part of the light emitted by the light source 100 enters the second light guide 300, and after multiple total reflections in the interior of the second light guide 300, the light acts on the milky white semi-transparent part 320 to diffuse out, thereby helping the lamp 10 to realize multiple light emitting effects.

[0061] In the utility model, unless otherwise explicitly specified or limited, the terms "mounting", "connection" and the like should be understood broadly. For example, it can be fixed connection, detachable connection, or integral connection; it can be mechanical connection; it can be direct connection, or indirect connection through an intermediate medium, or internal communication of two elements, or only surface contact, or surface contact connection through an intermediate medium. For those skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0062] In addition, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as specific or special structures. The description of the term "some embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the utility model. In the utility model, the illustrative description of the above-mentioned terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the utility model and the features of different embodiments or examples without contradiction.

[0063] The above embodiments are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not deviate from the essence of the corresponding technical solutions, and are within the spirit and scope of the technical solutions of the embodiments of the utility model, and should be included in the protection scope of the utility model.

Claims

1. A light guide device applied to a lamp, characterized by, Comprising: a first light guide, the first light guide being provided with a light inlet groove, the first light guide having a first light inlet surface and a second light outlet surface, the first light inlet surface being located at the light inlet groove, a part of light emitted by a light source of the lamp being capable of passing through the first light inlet surface and then being emitted from the first light outlet surface; and a second light guide, the second light guide being connected to the first light guide, the second light guide extending from the first light guide in a direction away from the first light guide, the second light guide having a second light inlet surface and a second light outlet surface, the second light inlet surface being located at the connection between the first light guide and the second light guide, another part of light emitted by the light source of the lamp being capable of passing through the second light inlet surface and then being emitted from the second light outlet surface.

2. The light guide of claim 1, wherein The first light inlet surface comprises a first sub-light inlet surface and a second sub-light inlet surface arranged oppositely and spaced apart, the first sub-light inlet surface and the second sub-light inlet surface being respectively located at two sides of the second light inlet surface, the part of light emitted by the light source being respectively emitted from the first light outlet surface to outside of the lamp after passing through the first sub-light inlet surface and the second sub-light inlet surface.

3. The light guide of claim 1, wherein The first light guide is arranged in a plate shape, and the first light outlet surface is located at a side of the first light guide away from the light inlet groove.

4. The light guide of claim 1, wherein The first light guide is further provided with a diffuse reflection structure, and the diffuse reflection structure is located at a peripheral side of the first light outlet surface.

5. The light guide of claim 1, wherein The lamp further comprises an anti-reflection film, and the anti-reflection film is arranged at the first light inlet surface and / or the second light inlet surface.

6. The light guide of claim 1, wherein The second light guide comprises a light guide portion and an opal translucent portion, the opal translucent portion being located at an end of the light guide portion away from the first light guide, the second light outlet surface being located at a surface of the opal translucent portion, the light guide portion being connected to the opal translucent portion and the first light guide, and the second light inlet surface being located at the connection between the light guide portion and the first light guide.

7. The light guide of claim 1, wherein The light guide device is arranged in an inverted T shape in cross section, and the second light guide and the first light guide both extend in the same direction.

8. A luminaire characterized by, Comprising: the light guide device according to any one of claims 1 to 7; and a light source, the light source being arranged opposite to the light inlet groove.

9. The luminaire of claim 8, wherein, The light source comprises a circuit board and a lamp bead, the lamp bead being mounted to a side of the circuit board facing the first light guide, and the circuit board and the first light guide are arranged in a stack.

10. The luminaire of claim 9, wherein, A convex portion is arranged at a side of the first light guide facing the circuit board, the convex portion abutting against the circuit board, the first light guide and the circuit board being arranged oppositely and spaced apart, and the lamp bead being located between the first light guide and the circuit board.

11. The luminaire of claim 8, wherein, The number of the light guide structures is plural, and the plural first light guides are arranged in an integral manner.

Images