Lamp

Abstract

The utility model relates to the technical field of lighting equipment, and discloses a lamp. The lamp comprises a light guide plate which comprises a front face, a back face and a side face serving as a light inlet face, and the light inlet face is provided with a convex arc-shaped area which is provided with a concave-convex structure; the lamp strip is matched with the light guide plate in shape and surrounds the light inlet surface of the light guide plate; a containing cavity is formed in the lamp holder, the light guide plate and the lamp strip are arranged in the containing cavity, the front face of the light guide plate faces the opening direction of the containing cavity, and the back face of the light guide plate faces the bottom face of the containing cavity. The arc-shaped area is provided with the concave-convex structure, the concave-convex structure can scatter light rays, the path of the light rays entering the light guide plate is changed, and therefore light ray focusing is avoided. The direction and distribution of the light are adjusted through the concave-convex structure, it is ensured that the light can be evenly spread in the light guide plate, formation of local bright spots and virtual images is remarkably reduced, and the overall lighting uniformity and the visual comfort degree are improved.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of lighting devices, for example to a lamp. BACKGROUND

[0002] In some lamp designs, a light guide plate and a lamp strip arranged around the light guide plate constitute the core components of the lamp. In particular, for those light guide plates with convex arc-shaped regions on the light-incoming surface, specific challenges are faced in providing uniform illumination. Specifically, such light guide plates have a special geometry due to the convex arc-shaped regions on the light-incoming surface, which is prone to focusing effect on light. This focusing effect causes the light guide plate to have uneven light emission, resulting in the formation of a virtual image inside the light guide plate connected to the arc-shaped region, thereby causing obvious light spot problems. The above phenomenon seriously affects the lighting effect and aesthetics of the lamp, and reduces the user experience.

[0003] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present disclosure, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0004] In order to have a basic understanding of some aspects of the disclosed embodiments, the following is a simple summary. The summary is not a general review, nor is it intended to determine key / important components or delineate the scope of protection of these embodiments, but as a prelude to the detailed description below.

[0005] The lamp provided by the embodiments of the present disclosure can ensure that light can be uniformly propagated in the light guide plate, significantly reduce local bright spots and virtual images, and improve the uniformity and visual comfort of overall illumination.

[0006] The lamp provided by the embodiments of the present disclosure comprises a light guide plate, a lamp strip, and a lamp holder. The light guide plate comprises a front surface, a back surface, and a side surface as a light-incoming surface. The light-incoming surface has a convex arc-shaped region, and the arc-shaped region is provided with a concave-convex structure. The lamp strip is arranged around the light-incoming surface of the light guide plate and matches the shape of the light guide plate. The lamp holder is formed with a receiving cavity, and the light guide plate and the lamp strip are arranged in the receiving cavity. The front surface of the light guide plate faces the opening direction of the receiving cavity, and the back surface of the light guide plate faces the bottom surface of the receiving cavity.

[0007] In some embodiments, the concave-convex structure comprises any one of the following: a sawtooth structure, a trapezoidal structure, a wave-shaped structure, a prism structure, and a microlens array.

[0008] In some embodiments, the surface of the concave-convex structure is non-specular. The non-specular surface design avoids the specular reflection of light, so that the light can be effectively scattered when entering the light guide plate. In this way, the light is more evenly distributed inside the light guide plate, reducing the local bright spot phenomenon caused by specular reflection, and improving the uniformity and visual comfort of the overall illumination.

[0009] In some embodiments, the bottom surface of the accommodating cavity is a light-reflecting surface. The bottom surface of the accommodating cavity is configured as a light-reflecting surface, which can efficiently reflect the light transmitted from the back surface back into the light guide plate, improving the light efficiency and reducing energy loss, and improving the light efficiency and uniformity.

[0010] In some embodiments, the light-in surface has two arc-shaped regions protruding in different directions, and a planar region between the two arc-shaped regions.

[0011] In some embodiments, the lamp holder comprises:

[0012] a cover assembly matching the shape of the light guide plate;

[0013] a ring-shaped enclosure assembly matching the shape of the light guide plate, and the cover assembly is detachably fastened to the ring-shaped enclosure assembly to form the accommodating cavity.

[0014] The cover assembly is detachably fastened to the ring-shaped enclosure assembly, making the assembly and disassembly process of the lamp simple and fast. This not only improves production efficiency, but also facilitates subsequent maintenance and replacement work, such as cleaning, repair or replacement of the light guide plate and the lamp strip. By dividing the lamp holder into two independent but matching parts, higher design flexibility and modular manufacturing can be achieved, which is beneficial to reduce production costs.

[0015] In some embodiments, the cover assembly comprises a cover plate and a ring-shaped pressing strip, and the cover plate and the ring-shaped pressing strip match the shape of the light guide plate, and the ring-shaped pressing strip is arranged around the cover plate;

[0016] The ring-shaped enclosure assembly comprises a ring-shaped enclosure plate and a ring-shaped support strip, and the ring-shaped enclosure plate and the ring-shaped support strip match the shape of the light guide plate, and the ring-shaped enclosure plate is arranged around the ring-shaped support strip;

[0017] The ring-shaped pressing strip is inserted into the ring-shaped enclosure plate and is arranged in a spaced manner with the ring-shaped support strip, and the lamp strip and the edge portion of the light guide plate containing the light-in surface are embedded in the gap between the ring-shaped pressing strip and the ring-shaped support.

[0018] The cover assembly is composed of a cover plate and a ring-shaped pressing strip, while the ring-shaped surrounding assembly includes a ring-shaped surrounding plate and a ring-shaped supporting strip. Each assembly is custom designed according to the specific shape of the light guide plate, ensuring a tight fit between the parts. The ring-shaped pressing strip penetrates into the ring-shaped surrounding plate and is spaced apart from the ring-shaped supporting strip, forming a gap specially designed for embedding the edge part of the light strip and the light guide plate. By precisely embedding the light entrance surface of the light strip and the light guide plate into the gap between the ring-shaped pressing strip and the ring-shaped supporting strip, the direction and distribution of light can be better controlled, unnecessary reflection and scattering can be avoided, and a more uniform lighting effect can be achieved. Moreover, the ring-shaped pressing strip and the ring-shaped supporting strip together provide firm support for the light guide plate, enhancing the mechanical strength of the entire lamp and reducing the risk of damage caused by external impact or vibration. This closed design effectively prevents dust, moisture and other external factors from entering the interior of the lamp, prolonging the service life of the lamp and maintaining its optical performance unaffected.

[0019] In some embodiments, the plate surface of the cover plate facing the ring-shaped supporting strip is the bottom surface of the accommodating cavity, and the plate surface of the cover plate away from the ring-shaped supporting strip is provided with a heat dissipation structure. The heat dissipation structure helps to quickly dissipate the heat generated by the light guide plate and the light strip during operation, effectively reduces the internal temperature of the lamp, prevents overheating from damaging the optical elements, and prolongs the service life of the lamp.

[0020] In some embodiments, the ring-shaped pressing strip includes:

[0021] A first ring-shaped vertical plate is arranged around the cover plate;

[0022] A second ring-shaped vertical plate is arranged around the first ring-shaped vertical plate, and the second ring-shaped vertical plate is provided with two opposite first notches. The first ring-shaped vertical plate and the second ring-shaped vertical plate are provided with a connecting plate.

[0023] The second ring-shaped vertical plate is provided with a connecting protrusion, and the ring-shaped surrounding plate is provided with a connecting port matched with the connecting protrusion. The connecting protrusion is embedded in the connecting port to realize the connection between the second ring-shaped vertical plate and the ring-shaped surrounding plate, and further realize the connection between the cover assembly and the ring-shaped surrounding assembly. The second ring-shaped vertical plate is provided with two opposite first notches. The first notch reserves an operation space for pinching the first ring-shaped vertical plate. Pinching the first ring-shaped vertical plate at the position corresponding to the first notch can make the cover assembly deform, so that the connecting protrusion slides out of the connecting port, and the cover assembly and the ring-shaped surrounding assembly are separated.

[0024] In some embodiments, the ring-shaped surrounding plate is provided with two second notches, and each second notch is opposite to a corresponding first notch. The second notch further reserves a larger operation space for pinching the first ring-shaped vertical plate, facilitating pinching the first ring-shaped vertical plate at the position corresponding to the first notch.

[0025] In some embodiments, the annular support strip has a first annular baffle and a second annular baffle, the first annular baffle surrounds the second annular baffle, and both the first annular baffle and the second annular baffle abut the area of the front surface of the light guide plate close to the light inlet surface, and the lamp strip is embedded in the gap between the baffle and the first annular baffle.

[0026] The design of the first annular baffle surrounding the second annular baffle provides double support, enhancing the mechanical strength of the entire lamp. This structure not only provides firm support for the light guide plate, but also reduces the risk of damage caused by external impact or vibration. The close fit of the first annular baffle and the second annular baffle forms a double-protected closed environment, effectively preventing dust, moisture and other external factors from entering the interior of the lamp, prolonging the service life of the lamp and maintaining its optical performance unaffected.

[0027] The lamp provided by the embodiments of the present disclosure can achieve the following technical effects:

[0028] The concave-convex structure is arranged in the arc-shaped area of the light inlet surface of the light guide plate, which can scatter light and change the path of light entering the light guide plate, thereby avoiding light focusing. By adjusting the direction and distribution of light through the concave-convex structure, it is ensured that the light can uniformly propagate in the light guide plate, significantly reducing the formation of local bright spots and virtual images, and improving the uniformity and visual comfort of overall illumination.

[0029] The above general description and the following description are only exemplary and explanatory, and are not used to limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0030] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute a limitation on the embodiments, elements with the same reference numerals in the drawings are shown as similar elements, the drawings do not constitute a proportional limitation, and wherein:

[0031] Figure 1 is a light path schematic diagram of a light guide plate of a related technology provided by the embodiments of the present disclosure;

[0032] Figure 2 is a structural schematic diagram of a lamp from a perspective provided by the embodiments of the present disclosure;

[0033] Figure 3 is a structural schematic diagram of a lamp from another perspective provided by the embodiments of the present disclosure;

[0034] Figure 4 is a structural schematic diagram of a lamp from yet another perspective provided by the embodiments of the present disclosure;

[0035] Figure 5 is a sectional view of the lamp at position A provided by the embodiments of the present disclosure;

[0036] Figure 6 is a local enlarged view of B in Figure 5

[0037] Figure 7 is a structural schematic view of a light guide plate provided by the embodiment of the present disclosure;

[0038] Figure 8 is a light path schematic view of a light guide plate provided by the embodiment of the present disclosure;

[0039] Figure 9 is a structural schematic view of a lamp strip provided by the embodiment of the present disclosure;

[0040] Figure 10 is an assembly schematic view of a light guide plate and a lamp strip provided by the embodiment of the present disclosure;

[0041] Figure 11 is a structural schematic view of a ring-shaped surrounding baffle provided by the embodiment of the present disclosure.

[0042] Explanation of reference numerals:

[0043] 1 light guide plate, 11 front surface, 12 back surface, 13 side surface, 131 arc-shaped area, 1311 concave-convex structure, 132 planar area;

[0044] 2 lamp strip;

[0045] 3 lamp holder, 31 cover assembly, 32 ring-shaped surrounding assembly;

[0046] 311 cover plate, 312 ring-shaped pressing strip, 3121 first ring-shaped vertical plate, 3122 second ring-shaped vertical plate, 3123 connecting plate, 3124 first gap, 3125 connecting protrusion, 313 heat dissipation structure;

[0047] 321 ring-shaped surrounding baffle, 3211 second gap, 3212 connecting port, 322 ring-shaped supporting strip, 3221 first ring-shaped baffle, 3222 second ring-shaped baffle;

[0048] 4 accommodating cavity, 41 bottom surface. DETAILED DESCRIPTION

[0049] In order to enable a person skilled in the art to better understand the features and technical contents of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the drawings, which are only used for reference and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, in order to simplify the drawings, well-known structures and devices can be simplified.​

[0050] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0051] Unless otherwise stated, the term "multiple" means two or more.

[0052] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0053] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0054] The term "correspondence" can refer to an association or binding relationship. The correspondence between A and B means that there is an association or binding relationship between A and B.

[0055] In some lighting designs, light guide plates and the surrounding LED strips constitute the core components of the luminaire. Light guide plates with convex curved areas on their light-incoming surfaces present unique challenges in providing uniform illumination. Specifically, the convex curved areas on these light guide plates have a special geometry that easily leads to light focusing. This focusing effect not only causes uneven light emission from the light guide plate but also creates a virtual image connected to the curved area inside the light guide plate, resulting in noticeable light spots.

[0056] by Figure 1 For example, the figure shows a light guide plate in a related technology. The light-incoming surface of the light guide plate includes a convex arc-shaped area. The arrows in the figure represent light rays. Light rays entering the interior of the light guide plate from this arc-shaped area will converge near the center of the arc-shaped area, causing a virtual image corresponding to this arc-shaped area to appear inside the light guide plate, forming a significant light spot problem. This situation seriously affects the lighting effect and aesthetics of the lamp, and reduces the user experience.

[0057] Combination Figures 2 to 7As shown, the lamp provided by the embodiment of the present disclosure comprises a light guide plate 1, a lamp strip 2 and a lamp holder 3. The light guide plate 1 comprises a front surface 11, a back surface 12 and a side surface 13 as a light inlet surface, the light inlet surface has an outward convex arc-shaped area 131, and the arc-shaped area 131 is provided with a concave-convex structure 1311. For example, the light inlet surface has two arc-shaped areas 131 outward convex in different directions, and a planar area 132 between the two arc-shaped areas 131. The front surface 11 of the light guide plate 1 is a side of the light guide plate 1 facing a user or an observer. This is the surface from which light is finally emitted uniformly from the light guide plate 1. The front surface 11 is usually treated to optimize the light emission effect, such as adding microstructures, coatings or other optical treatments, aiming to improve the uniformity of light and visual comfort. The back surface 12 of the light guide plate 1 is the other side opposite to the front surface 11, usually the side facing the interior of the lamp or the installation environment. The side surface 13 (light inlet surface) of the light guide plate 1 refers to the side of the light guide plate 1 that receives and introduces light from the light source. In this specific design, the light inlet surface is an outward convex arc-shaped area 131, which functions to receive light from the lamp strip 2 and introduce the light into the interior of the light guide plate 1. The arc-shaped area 131 is provided with a concave-convex structure 1311 for adjusting the direction and distribution of the incoming light. Specifically, as shown in the figure, the light path of the light guide plate 1 is shown, and the arrows in the figure represent the light. The concave-convex structure 1311 can scatter the light, avoid focusing of the light and ensure uniform propagation of the light in the light guide plate 1. Figure 8

[0058] As shown in Figure 9 and Figure 10 , the lamp strip 2 matches the shape of the light guide plate 1, and the lamp strip 2 is arranged around the light inlet surface of the light guide plate 1. The position of the lamp strip 2 is adjacent to the light inlet surface of the light guide plate 1, which ensures that the light source can enter the light guide plate 1 at the optimal angle, enhancing the overall lighting effect. The lamp holder 3 is formed with a receiving cavity 4, and the light guide plate 1 and the lamp strip 2 are arranged in the receiving cavity 4. The front surface 11 of the light guide plate 1 faces the opening direction of the receiving cavity 4, and the front surface 11 of the light guide plate 1 faces the opening direction of the receiving cavity 4, so as to directly emit uniform light outward. The back surface 12 of the light guide plate 1 faces the bottom surface 41 of the receiving cavity 4, and the bottom surface 41 of the receiving cavity 4 can reflect the light transmitted from the back surface 12 back into the light guide plate 1, improving the light efficiency and reducing the energy loss, and improving the light efficiency and uniformity.

[0059] The lamp provided by the embodiment of the present disclosure sets the concave-convex structure 1311 on the arc-shaped area 131 of the light inlet surface of the light guide plate 1, which can scatter the light, change the light path of the light entering the light guide plate 1, and thus avoid focusing of the light.

[0060] By adjusting the direction and distribution of the light through the concave-convex structure 1311, it is ensured that the light can uniformly propagate in the light guide plate 1, significantly reducing the formation of local bright spots and virtual images, and improving the uniformity and visual comfort of the overall lighting.​

[0061] In some embodiments, the concave-convex structure 1311 includes any of the following: a sawtooth structure, a trapezoidal structure, a wavy structure, a prism structure, a microlens array.

[0062] The sawtooth structure includes a series of triangular cross-section protrusions formed on the side surface 13 of the light guide plate 1, which can be regularly arranged or adjusted in width and depth as needed to optimize the light propagation path, and the trapezoidal structure can change the direction of the light through scattering.

[0063] The trapezoidal structure includes a series of trapezoidal cross-section protrusions formed on the side surface 13 of the light guide plate 1, which can be regularly arranged or adjusted in width and depth as needed to optimize the light propagation path, and the trapezoidal structure can change the direction of the light through scattering.

[0064] The wavy structure includes a series of sector-shaped cross-section protrusions formed on the side surface 13 of the light guide plate 1, which can be regularly arranged or adjusted in width and depth as needed to optimize the light propagation path, and the trapezoidal structure can change the direction of the light through scattering.

[0065] The prism structure includes various forms such as linear prisms or cross prisms, characterized by a surface composed of multiple triangular cross-sections, similar to traditional optical prisms.

[0066] The microlens array is an array composed of numerous tiny lenses, which can be circular, square, or other geometric shapes. Each microlens can independently act on incident light, focusing or diffusing it, achieving light scattering.

[0067] In some embodiments, the surface of the concave-convex structure 1311 is non-specular. The surface of the concave-convex structure 1311 is specially treated to present a non-specular state, with a specific roughness or micro-relief. This non-specular surface design avoids specular reflection of light, allowing the light to be effectively scattered when entering the light guide plate 1. In this way, the light is more evenly distributed inside the light guide plate 1, reducing the local bright spot phenomenon caused by specular reflection, and improving the uniformity and visual comfort of the overall illumination.

[0068] In some embodiments, the bottom surface 41 of the accommodating cavity 4 is a light-reflecting surface. The back surface 12 of the light guide plate 1 faces the bottom surface 41 of the accommodating cavity 4, which is configured as a light-reflecting surface, capable of efficiently reflecting the light transmitted from the back surface 12 back into the light guide plate 1, improving light efficiency and reducing energy loss, as well as improving light efficiency and uniformity.

[0069] In some embodiments, the back surface 12 of the light guide plate 1 can be equipped with a reflective layer or other optical components, the purpose of which is to reflect light that fails to be directly transmitted from the back surface 12 back into the light guide plate 1, thereby further improving the light efficiency and uniformity. The back surface 12 can also have a specific texture or coating to reduce unnecessary reflection or absorption.

[0070] In some embodiments, the lamp holder 3 comprises a cover assembly 31 and a ring-shaped enclosure assembly 32. The cover assembly 31 is shaped to match the shape of the light guide plate 1. The ring-shaped enclosure assembly 32 is shaped to match the shape of the light guide plate 1, and the cover assembly 31 is detachably fastened to the ring-shaped enclosure assembly 32 to form the accommodating cavity 4.

[0071] The cover assembly 31 is detachably fastened to the ring-shaped enclosure assembly 32, making the assembly and disassembly process of the lamp simple and fast. This not only improves production efficiency, but also facilitates subsequent maintenance and replacement work, such as cleaning, repair or replacement of the light guide plate 1 and the lamp strip 2. By dividing the lamp holder 3 into two independent but matching parts, higher design flexibility and modular manufacturing can be achieved, which is beneficial to reducing production costs.

[0072] In some embodiments, the cover assembly 31 comprises a cover plate 311 and a ring-shaped pressing strip 312, which are shaped to match the shape of the light guide plate 1, and the ring-shaped pressing strip 312 is arranged around the cover plate 311. The ring-shaped enclosure assembly 32 comprises a ring-shaped enclosure plate 321 and a ring-shaped supporting strip 322, which are shaped to match the shape of the light guide plate 1, and the ring-shaped enclosure plate 321 is arranged around the ring-shaped supporting strip 322. The ring-shaped pressing strip 312 is inserted into the ring-shaped enclosure plate 321 and is arranged in a spaced manner with the ring-shaped supporting strip 322, and the lamp strip 2 and the edge portion of the light guide plate 1 containing the light-incident surface are embedded in the gap between the ring-shaped pressing strip 312 and the ring-shaped supporting strip 322.

[0073] The cover assembly 31 is composed of a cover plate 311 and a ring-shaped pressing strip 312, and the ring-shaped enclosing assembly 32 is composed of a ring-shaped enclosing plate 321 and a ring-shaped supporting strip 322. Each assembly is custom-designed according to the specific shape of the light guide plate 1, ensuring a tight fit between the parts. The ring-shaped pressing strip 312 penetrates into the ring-shaped enclosing plate 321 and is spaced apart from the ring-shaped supporting strip 322, forming a gap specially used for embedding the edge part of the light strip 2 and the light guide plate 1. By accurately embedding the light-incident surface of the light strip 2 and the light guide plate 1 into the gap between the ring-shaped pressing strip 312 and the ring-shaped supporting strip 322, the direction and distribution of light can be better controlled, unnecessary reflection and scattering can be avoided, and thus a more uniform lighting effect can be achieved. Moreover, the ring-shaped pressing strip 312 and the ring-shaped supporting strip 322 jointly provide firm support for the light guide plate 1, enhancing the mechanical strength of the entire lamp and reducing the risk of damage caused by external impact or vibration. This closed design effectively prevents dust, moisture and other external factors from entering the interior of the lamp, prolongs the service life of the lamp and maintains its optical performance unaffected.

[0074] In some embodiments, the plate surface of the cover plate 311 facing the ring-shaped supporting strip 322 is the bottom surface 41 of the accommodating cavity 4, and the plate surface of the cover plate 311 away from the ring-shaped supporting strip 322 is provided with a heat dissipation structure 313. Here, the specific structural features of the heat dissipation structure 313 can be determined according to actual design needs, for example, the heat dissipation structure 313 is designed in a honeycomb shape. By providing the heat dissipation structure 313, it is helpful to quickly dissipate the heat generated by the light guide plate 1 and the light strip 2 during operation, effectively reduce the internal temperature of the lamp, prevent overheating from causing damage to the optical elements, and prolong the service life of the lamp.

[0075] In some embodiments, the annular pressing strip 312 includes a first annular upright plate 3121 and a second annular upright plate 3122. The first annular upright plate 3121 is arranged around the cover plate 311, and the second annular upright plate 3122 is arranged around the first annular upright plate 3121. The first annular upright plate 3121 and the second annular upright plate 3122 are provided with a connecting plate 3123. The connecting plate 3123 can abut the area of the back surface of the light guide plate 1 close to the light entrance surface and the lamp strip 2. The second annular upright plate 3122 is provided with a connecting protrusion 3125, and the annular enclosing plate 321 is provided with a connecting opening 3212 matched with the connecting protrusion 3125. The connecting protrusion 3125 is embedded in the connecting opening 3212 to realize the connection between the second annular upright plate 3122 and the annular enclosing plate 321, and further realize the connection between the cover assembly 31 and the annular enclosing assembly 32. The second annular upright plate 3122 is provided with two opposite first notches 3124. The first notches 3124 reserve operation space for pinching the first annular upright plate 3121. Pinching the first annular upright plate 3121 at the position corresponding to the first notches 3124 can make the cover assembly 31 deform, so that the connecting protrusion 3125 slides out of the connecting opening 3212, and the cover assembly 31 is separated from the annular enclosing assembly 32.

[0076] In some embodiments, the annular enclosing plate 321 is provided with two second notches 3211, and each second notch 3211 is opposite to a corresponding first notch 3124. The second notches 3211 further reserve larger operation space for pinching the first annular upright plate 3121, which facilitates pinching the first annular upright plate 3121 at the position corresponding to the first notches 3124.

[0077] In some embodiments, in combination with Figure 5 , Figure 6 and Figure 11 as shown, the annular supporting strip 322 has a first annular enclosing plate 3221 and a second annular enclosing plate 3222. The first annular enclosing plate 3221 surrounds the second annular enclosing plate 3222. The first annular enclosing plate 3221 and the second annular enclosing plate 3222 abut the area of the front surface 11 of the light guide plate 1 close to the light entrance surface. The lamp strip 2 is embedded in the gap between the enclosing plate and the first annular enclosing plate 3221.

[0078] The design of the first annular enclosing plate 3221 surrounding the second annular enclosing plate 3222 provides double support, enhancing the mechanical strength of the entire lamp. This structure not only provides firm support for the light guide plate 1, but also reduces the risk of damage caused by external impact or vibration. The close fit of the first annular enclosing plate 3221 and the second annular enclosing plate 3222 forms a double-protected enclosed environment, effectively preventing dust, moisture and other external factors from entering the interior of the lamp, prolonging the service life of the lamp and maintaining its optical performance unaffected.

[0079] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0080] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0081] In the embodiments disclosed herein, the disclosed methods, products (including but not limited to apparatuses, devices, etc.), can be implemented in other manners. For example, the described apparatus embodiments can be implemented only in a form of a logical function, and can be implemented by using a manner such as software (for example, application program) or the like. In some embodiments, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed coupling or direct coupling or indirect coupling between different units, or the coupling or direct coupling or indirect coupling between the displayed or discussed communication connections can be in a form of electrical, mechanical or other forms.

[0082] The flowcharts and block diagrams in the drawings show the possible implementation architectures, functions and operations of the system, method and computer program product according to the embodiments of the present disclosure. In this regard, each block in the flowcharts or block diagrams can represent a module, a program segment or a part of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions noted in the blocks can occur in an order different from that noted in the drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and sometimes they can be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the drawings, the operations or steps corresponding to different blocks can also occur in an order different from that disclosed in the descriptions, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and sometimes they can be executed in reverse order, depending on the functions involved. Each block in the block diagrams and / or flowcharts, and the combination of blocks in the block diagrams and / or flowcharts, can be implemented by a dedicated hardware-based system that performs the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A luminaire characterized by, The application relates to a light guide plate and a lamp holder. The light guide plate comprises a front surface, a back surface and a side surface as a light inlet surface, the light inlet surface has an outward convex arc-shaped area, and the arc-shaped area is provided with a concave-convex structure. The lamp holder is provided with a containing cavity, the light guide plate and the lamp strip are arranged in the containing cavity, the front surface of the light guide plate faces the opening direction of the containing cavity, and the back surface of the light guide plate faces the bottom surface of the containing cavity. The concave-convex structure comprises any one of the following: a sawtooth structure, a trapezoidal structure, a wave-shaped structure, a prism structure and a microlens array.

2. The luminaire of claim 1, wherein, The concave-convex structure comprises any one of the following: a sawtooth structure, a trapezoidal structure, a wave-shaped structure, a prism structure and a microlens array.

3. The luminaire of claim 1, wherein, The light inlet surface has two arc-shaped areas which are outward convex in different directions, and a planar area between the two arc-shaped areas.

4. The luminaire of claim 1, wherein, The lamp holder comprises:

5. The luminaire of claim 1, wherein, A cover assembly which is matched with the shape of the light guide plate; A ring-shaped surrounding assembly which is matched with the shape of the light guide plate, and the cover assembly is detachably buckled on the ring-shaped surrounding assembly to form the containing cavity. The cover assembly comprises a cover plate and a ring-shaped pressing strip which are matched with the shape of the light guide plate, and the ring-shaped pressing strip is arranged around the cover plate; 6. The luminaire of claim 5, wherein, The ring-shaped surrounding assembly comprises a ring-shaped surrounding plate and a ring-shaped supporting strip which are matched with the shape of the light guide plate, and the ring-shaped surrounding plate is arranged around the ring-shaped supporting strip; The ring-shaped pressing strip is arranged in the ring-shaped surrounding plate and is spaced from the ring-shaped supporting strip, the lamp strip and the edge part of the light guide plate containing the light inlet surface are embedded in the gap between the ring-shaped pressing strip and the ring-shaped supporting strip. The plate surface of the cover plate which faces the ring-shaped supporting strip is the bottom surface of the containing cavity, and the plate surface of the cover plate which faces away from the ring-shaped supporting strip is provided with a heat dissipation structure.

7. The luminaire of claim 6, wherein, The ring-shaped pressing strip comprises:

8. The luminaire of claim 6, wherein, A first ring-shaped vertical plate which is arranged around the cover plate; A second ring-shaped vertical plate which is arranged around the first ring-shaped vertical plate, the second ring-shaped vertical plate is provided with two opposite first notches, and the first ring-shaped vertical plate and the second ring-shaped vertical plate are provided with a connecting plate. The ring-shaped surrounding plate is provided with two second notches, and each second notch is opposite to the corresponding first notch.

9. The luminaire of claim 8, wherein, The ring-shaped supporting strip has a first ring-shaped surrounding plate and a second ring-shaped surrounding plate, the first ring-shaped surrounding plate is arranged around the second ring-shaped surrounding plate, and the first ring-shaped surrounding plate and the second ring-shaped surrounding plate are both abutted to the area of the front surface of the light guide plate which is close to the light inlet surface, and the lamp strip is embedded in the gap between the surrounding plate and the first ring-shaped surrounding plate.

10. The luminaire of claim 6, wherein, ​

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