CN112285821B

CN112285821B - Lamp fitting

Info

Publication number: CN112285821B
Application number: CN202011209430.6A
Authority: CN
Inventors: 廖士权; 王年杰
Original assignee: Interface Optoelectronics Shenzhen Co Ltd; Interface Technology Chengdu Co Ltd; General Interface Solution Ltd
Current assignee: Interface Optoelectronics Shenzhen Co Ltd; Interface Technology Chengdu Co Ltd; General Interface Solution Ltd
Priority date: 2020-11-03
Filing date: 2020-11-03
Publication date: 2023-01-20
Anticipated expiration: 2040-11-03
Also published as: CN112285821A

Abstract

The invention relates to a lamp. A light fixture, comprising: the light emitting plate is provided with a light emitting surface and a light incident surface which are opposite, and the light incident surface is provided with a light guide groove; the light guide body is provided with an emergent surface and an incident surface which are opposite, the light guide body is embedded into the light guide groove, and the emergent surface is opposite to the bottom wall surface of the light guide groove; and a light source provided on one side of the incident surface of the light guide body, a light emitting surface of the light source being opposed to the incident surface. Above-mentioned lamps and lanterns through setting up light conductor guide light, can reduce the path length that light passed through on light-emitting plate thickness direction, make through the more even and concentrated of light-emitting plate outgoing, promote the illuminating effect of lamps and lanterns.

Description

Lamp fitting

Technical Field

The invention relates to the field of lamp design, in particular to a lamp.

Background

With the development of lamp design, the artificial stone is more and more widely applied to the lamp. At present, artificial stones are often used as light emitting panels of lamps, for example, table panels and wall surfaces made of artificial stones, and light emitted from a light source is emitted through the artificial stones to form a light emitting table panel or wall surface. The artificial stone has the advantages of rich color, changeable shape and the like, and can be used as the light emergent panel of the lamp, so that the lamp is more attractive, and the ornamental value of the lamp is improved.

However, the artificial stone has a large scattering effect on light, which causes the emitted light of the lamp to be scattered and uneven, and affects the lighting effect of the lamp.

Disclosure of Invention

Therefore, it is necessary to provide a lamp for solving the problem that the artificial stone has a large scattering effect on light and affects the lighting effect of the lamp.

A light fixture, comprising:

the light emitting plate is provided with a light emitting surface and a light incident surface which are opposite, and the light incident surface is provided with a light guide groove;

the light guide body is provided with an emergent surface and an incident surface which are opposite, the light guide body is embedded into the light guide groove, and the emergent surface is opposite to the bottom wall surface of the light guide groove; and

and the light source is arranged on one side of the incident surface of the light guide body, and the light emitting surface of the light source faces the light guide body.

In one embodiment, the light guide includes an embedded portion and a mounting portion connected to each other, the embedded portion having a cross-sectional shape corresponding to the light guide groove, the embedded portion being embedded in the light guide groove, and the mounting portion having a cross-sectional area larger than that of the embedded portion.

In one embodiment, the incident surface is provided with a mounting groove, and the light source is embedded into the mounting groove.

In one embodiment, the incident surface is provided with a reflective layer, and a light reflecting side of the reflective layer faces the exit surface.

In one embodiment, the light guide body is a hollow structure, and includes an outer side surface and an inner side surface opposite to each other, the outer side surface and the inner side surface both connect the exit surface and the incident surface, and the outer side surface and the inner side surface are covered with light blocking layers; or alternatively

The light guide body is of a solid structure and comprises an outer side face, the outer side face is connected with the emergent face and the incident face, and a light blocking layer covers the outer side face.

In one embodiment, the light blocking layer is made of a light-transmitting material, and the refractive index of the light blocking layer is smaller than that of the light guide body; or

The light blocking layer is made of shading materials.

In one embodiment, a light diffuser is arranged between the light source and the incident surface; and/or

The incident surface is configured as a frosted surface or a textured surface.

In one embodiment, an extending direction of the light guide groove is perpendicular to the light exit surface, and an orthogonal projection of the light guide groove on the light exit surface is square or circular.

In one embodiment, the exit surface abuts against the bottom wall surface of the light guide groove, and the distance between the exit surface and the exit surface is less than or equal to 1mm.

In one embodiment, the light source is provided in a plurality, and the plurality of light sources are uniformly distributed along the extending direction of the incident surface.

According to the lamp, the light guide body is arranged to guide the light emitted by the light source to the bottom wall surface of the light guide groove, the light is emitted from the emergent surface and then enters the light guide groove from the bottom wall surface of the light guide groove, and the light is emitted from the emergent surface after passing through the emergent plate. From this reduce the path length that light passed through in the light-emitting plate thickness direction, and then reduce the scattering effect of light-emitting plate and to the influence of light, make finally more even and concentrate through the light of light-emitting plate outgoing, promote the illuminating effect of lamps and lanterns. Meanwhile, the light guide groove is formed in the light incident surface of the light emergent plate, so that the appearance of the lamp on the light emergent surface is not influenced, the lighting effect is improved, and the ornamental value of the lamp can be guaranteed.

Drawings

FIG. 1 is a cross-sectional view of a lamp according to some embodiments of the present disclosure;

FIG. 2 is a schematic view of the light incident surface of the light emitting panel according to some embodiments of the present disclosure;

FIG. 3 is a schematic structural diagram of a light guide according to some embodiments of the present disclosure;

FIG. 4 is a schematic view of an incident surface of a light guide according to some embodiments of the present disclosure;

FIG. 5 is a schematic structural diagram of a light guide according to another embodiment of the present disclosure;

FIG. 6 is a schematic view of an entrance face of a light guide in other embodiments of the present application.

100, a lamp; 110. a light emitting plate; 111. a light-emitting surface; 112. a light incident surface; 113. a light guide groove; 114. a bottom wall surface; 115. a side wall surface; 120. a light guide; 121. an exit surface; 122. an incident surface; 123. mounting grooves; 124. an outer side surface; 125. an inner side surface; 126. an insertion section; 127. an installation part; 130. a light source; 131. a light emitting face; 140. a PCB.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

Referring to fig. 1, fig. 1 shows a cross-sectional view of a lamp 100 according to some embodiments of the present disclosure. The luminaire 100 includes a light emitting plate 110, a light guide 120, and a light source 130. The light emitting plate 110 has a light emitting surface 111 and a light incident surface 112 opposite to each other, and the light emitting surface 111 of the light emitting plate 110 is the light emitting surface 111 of the lamp 100, in other words, the lamp 100 is used for illuminating an object located on one side of the light emitting surface 111 of the light emitting plate 110. The light incident surface 112 of the light guide 120 is formed with a light guide groove 113, and the light guide groove 113 includes a bottom wall surface 114 and a side wall surface 115, that is, the bottom wall surface 114 and the side wall surface 115 together enclose the light guide groove 113. The light guide 120 has an emission surface 121 and an incident surface 122 facing each other, and the light guide 120 is partially fitted into the light guide groove 113 with the emission surface 121 facing the bottom wall surface 114 of the light guide groove 113. The light source 130 is provided on the incident surface 122 side of the light guide 120, and the light emitting surface 131 of the light source 130 is provided toward the light guide 120.

The light guide 120 has a good light guiding capability, and after the light emitted from the light source 130 enters the light guide 120 through the incident surface 122, the light is totally reflected on the sidewall of the light guide 120 and then transmitted along the light guide 120. When the light reaches the light-emitting surface 121, the light is emitted from the light-emitting surface 121, and then is emitted from the light-emitting surface 111 through the light-emitting plate 110, so as to illuminate one side of the light-emitting surface 111 of the light-emitting plate 110. It can be understood that, if the light guide 120 is not disposed, the light emitted from the light source 130 located at the light incident surface 112 side of the light-emitting plate 110 needs to pass through the entire light-emitting plate 110 in the thickness direction and then be emitted from the light-emitting surface 111. The light guide 120 is disposed to guide the light to the emitting surface 121, and then the light enters the light emitting plate 110 from the bottom wall surface 114 of the light guide groove 113, so that the light can be emitted from the light emitting plate 110 only by passing through a part of the light emitting plate 110 in the thickness direction.

Therefore, the lamp 100 can reduce the path length of light passing through the light-emitting plate 110 in the thickness direction by arranging the light guide body 120, so as to reduce the influence of the scattering effect of the light-emitting plate 110 on the light, so that the light emitted from the light-emitting plate 110 is more uniform and concentrated, and the lighting effect of the lamp 100 is improved.

It should be noted that, in the present application, the lamp 100 is described to make the light emitted through the light-emitting plate 110 more concentrated, which can be understood as that the scattering effect of the light-emitting plate 110 has little influence on the light, so that the divergence degree of the light in the transmission process is small, and can also be understood as that the light is concentrated on the portion of the light-emitting surface 111 opposite to the light-emitting surface 121. Since the light mostly enters the light-emitting plate 110 from the light-emitting surface 121 through the bottom wall surface 114 of the light guide groove 113, and the path of the light passing through the light-emitting plate 110 is smaller, the divergence degree of the light is small, most of the light is concentrated on the portion of the light-emitting surface 111 opposite to the light-emitting surface 121 and emitted, the light intensity of the light-emitting portion of the light-emitting surface 111 is improved, and the illumination effect is improved. In addition, when the light-emitting plate 110 is made of a non-uniform material, the scattering effect of the light-emitting plate 110 tends to cause different degrees of divergence of the light in different directions, resulting in non-uniform distribution of the emitted light. Therefore, describing the lamp 100 that makes the light emitted from the light-emitting plate 110 more uniform, it can be understood that the scattering effect of the light-emitting plate 110 has little influence on the light, so that the light emitted from the light-emitting portion of the light-emitting surface 111 is more uniformly distributed.

Of course, the materials of the light-emitting plate 110 and the light guide 120 are not limited as long as the light-emitting plate 110 can transmit light and the light guide 120 has good light guiding capability. For example, in some embodiments, the light emitting plate 110 is made of artificial stone, and the material of the light emitting plate 110 includes, but is not limited to, acrylic, resin, or aluminum hydroxide. The artificial stone has the advantages of being rich in color, changeable in modeling and the like, the artificial stone is used as the light emitting plate 110 of the lamp 100, the lamp 100 can have different colors and modeling according to different design requirements, the lamp 100 is more attractive, and the ornamental value of the lamp 100 is improved. Meanwhile, the light guide groove 113 is formed in the light incident surface 112 of the light emergent plate 110 of the lamp 100, so that the appearance of the light emergent surface 111 of the lamp 100 is not affected, and the illumination effect is improved while the ornamental value of the lamp 100 is not affected. In some embodiments, the luminaire 100 may further include a lamp cover (not shown) covering the light guide 120 and the light source 130 of the luminaire 100 to improve the ornamental value of the luminaire 100.

In some embodiments, the light guide 120 may be made of a material with high light transmittance, such as Polycarbonate (PC) or polymethyl methacrylate (PMMA). Since the refractive index of the light guide 120 is greater than that of air, when light propagates through the light guide 120, total reflection easily occurs at the side wall of the light guide 120, and it is found that the loss ratio is low when the light guide 120 is emitted from the side wall, that is, the light guide 120 has good light guiding ability.

In some embodiments, the light source 130 may be a Light Emitting Diode (LED), and the luminaire 100 may further include a printed circuit board (PCB 140), and the light source 130 is disposed on the PCB140 to fix and supply power to the light source 130.

In the present application, the type of the lamp 100 is not limited, and any object that can emit light and can function as a lighting or light-emitting marker may be the lamp 100 of the present application. For example, in some embodiments, the light fixture may be integrated with a building structure or other furniture, the light-emitting panel 110 may be a desk or a wall, and the desktop or the wall may serve as the light-emitting surface 111 of the light-emitting panel 110, and accordingly, the light source 130 may be disposed in the desk or the wall.

Referring to fig. 2 and 3 together, fig. 2 illustrates a schematic view of the light incident surface 112 of the light exiting plate 110 in some embodiments of the present disclosure, and fig. 3 illustrates a schematic view of the light guide 120 in some embodiments of the present disclosure. The shape of the light guide groove 113 formed in the light emitting plate 110 is not limited, and the shape of the light guide 120 can be adjusted to fit the light guide groove 113 according to the shape of the light guide groove 113. For example, in some embodiments, the cross-sectional shape of the light guide groove 113 is square, and accordingly, the cross-sectional shape of the light guide 120 may also be square. Specifically, the light guide 120 includes an insertion portion 126 and a mounting portion 127 that are connected to each other, the insertion portion 126 is inserted into the light guide groove 113, and a surface of the insertion portion 126 facing the bottom wall surface 114 is the emission surface 121 of the light guide 120. The cross-sectional area of the fitting portion 126 is adapted to the cross-sectional shape of the light guide groove 113, in other words, when the fitting portion 126 is fitted into the light guide groove 113, the fitting portion 126 abuts against the bottom wall surface 114 and the side wall surface 115 of the light guide groove 113. The gap between the embedded portion 126 and the light guide groove 113 is small, and the loss of light between the embedded portion 126 and the light exit plate 110 can be reduced. The surface of the mounting portion 127 facing away from the insertion portion 126 is the incident surface 122 of the light guide 120, and the cross-sectional area of the mounting portion 127 is larger than that of the insertion portion 126. In this way, the area of the incident surface 122 can be increased without affecting the size design of the light guide groove 113, so that the light guide 120 can be adapted to light sources 130 of different specifications. When the light source 130 is larger in size, the incident surface 122 can also receive the light emitted by the light source 130 more completely, and the loss of the light is reduced.

Of course, in other embodiments, the mounting portion 127 may not be provided on the light guide 120, and the cross-sectional area of each portion of the light guide 120 is the same. The light guide 120 may be completely fitted into the light guide groove 113, and the light guide 120 may function to guide light as long as the light emitting surface 131 of the light source 130 faces the incident surface 122.

Referring collectively to fig. 1 and 4, fig. 4 shows a schematic view of the incident surface 122 in some embodiments of the present application. In order to further reduce the light loss, in some embodiments, the incident surface 122 may further have a mounting groove 123, and the light source 130 is embedded in the mounting groove 123. Through setting up mounting groove 123, when the light that light source 130 launched when different directions outgoing, all can get into in the light guide body 120, and then reduce the loss of light. The shape of the mounting groove 123 is not limited, and in the embodiment shown in fig. 1, the mounting groove 123 has a square shape, and when the light emitting surface 131 of the light source 130 has an arc-shaped surface, the mounting groove 123 may have an arc shape corresponding to the light emitting surface 131. It can be understood that, when the incident surface 122 is not provided with the mounting groove 123, the light source 130 is disposed on a side of the light guide 120 away from the light emitting plate 110, and light emitted from the light source 130 enters the light guide 120 through the light emitting surface 122. When the incident surface 122 is opened with the mounting groove 123, the light source 130 is inserted into the mounting groove 123, the light emitting surface 131 of the light source 130 can be completely located in the mounting groove 123, and the light emitted from the light source 130 enters the light guide 120 from the bottom and the side wall of the mounting groove 123.

In some embodiments, the light sources 130 may be disposed in plural, and the plural light sources 130 are disposed at intervals along the extending direction of the incident surface 122 to improve the intensity of light emitted from the light emitting surface 111 of the lamp 100, thereby improving the illumination effect. The number of the light sources 130 is not limited, and may be three, four, or five. Accordingly, the mounting groove 123 may be provided in plurality, and each light source 130 is inserted into a corresponding one of the mounting grooves 123. In order to make the light emitted from the light emitting surface 111 of the lamp 100 more uniform, in some embodiments, when a plurality of light sources 130 are disposed, the light sources 130 can be uniformly distributed along the extending direction of the incident surface 122. For example, in the embodiment shown in fig. 4, the incident surface 122 is square, four light sources 130 and four mounting grooves 123 are disposed, and the four mounting grooves 123 are respectively located at the centers of four sides of the incident surface 122. Thus, the light emitted from the light source 130 is emitted into the light guide 120 from four uniformly distributed positions, so as to improve the uniformity of the light emitted from the lamp 100. In other embodiments, when the incident surface 122 is circular, the four mounting grooves 123 may also be uniformly distributed along the circumferential direction of the incident surface 122.

Further, in some embodiments, a light diffuser (not shown) may be disposed between the light emitting surface 131 of the light source 130 and the incident surface 122, or a diffusion material covers the surface of the light emitting surface 131 of the light source 130, so that the light emitted from the light source 130 can be incident into the light guide 120 from different directions, and the light distribution in the light guide 120 is more uniform, so as to improve the uniformity of the light emitted from the lamp 100. Of course, the incident light of the light guide 120 may also be provided as a scattering surface, for example, in some embodiments, the incident surface 122 is provided as a frosted surface or a textured surface, which also enables the light to be emitted into the light guide 120 from different directions, so as to improve the uniformity of the light emitted from the lamp 100.

In the embodiment shown in fig. 3 and 4, the light guide 120 has a hollow shape, and the cross-sectional shape of the light guide 120 may have any suitable regular or irregular shape such as a circle, a square, a triangle, or an ellipse, so long as the cross-sectional shape of the fitting portion 126 can be adapted to the light guide groove 113 and the fitting portion 126 can be fitted to the light guide groove 113. Of course, the light guide 120 may have other shapes according to the different shapes of the light guide groove 113, for example, as shown in fig. 5 and 6, in some embodiments, the light guide 113 has a solid circular cross-sectional shape, the light guide 120 may have a solid structure, the light guide 120 has a solid circular cross-sectional shape, and the mounting groove 123 may be disposed in the center of the incident surface 122. In other embodiments, the cross-sectional shape of the light guide 120 may be any suitable shape, such as a solid square, a solid triangle, or the like.

It can be understood that the light emitted from the light source 130 passes through the light guide 120 and then exits from the exit surface 121, and enters the light exit plate 110 at the bottom wall surface 114 of the light guide groove 113, and most of the light exits from the position where the exit surface 111 is opposite to the exit surface 121. Therefore, the shape of the light emitted from the light emitting surface 111 depends on the cross-sectional shapes of the light guide 120 and the light guide groove 113. For example, in the embodiment shown in fig. 3, the light exiting surface 111 emits light rays in a hollow square shape. In the embodiment shown in fig. 4, the light exiting from the light exiting surface 111 forms a solid circle. Therefore, the shapes of the light guide 120 and the light guide groove 113 are designed to make the light emitted from the lamp 100 form different shapes, so as to improve the ornamental value of the illumination of the lamp 100. Of course, the light emitted from the lamp 100 may also be formed into marks such as numbers, letters, symbols, etc., and the lamp 100 may also be used for marking or warning while illuminating.

It can be understood that, the greater the difference between the light transmittances of the light emitting plate 110 and the light guiding body 120, the more obvious the light emitting shape or mark formed by the luminaire 100 is. For example, in some embodiments, when the light emitting plate 110 is made of artificial stone, and the light guide 120 is made of a material with high light transmittance such as PC or PMMA, the light transmittance of the light emitting plate 110 is greatly different from that of the light guide 120, most of the light emitted by the light source 120 is guided by the light guide 120 and then emitted to form a light emitting shape or mark, and the light emitted by the rest of the light emitting plate 110 is less, and the light emitting brightness of the light emitting shape or mark position is greatly different from that of the rest of the light emitting plate, so that an obvious light emitting shape or mark can be formed according to the shape of the light guide groove 113.

In some embodiments, besides the exit surface 121, the remaining surfaces of the light guide 120 may be further provided with a film layer to block the light from exiting the light guide 120 from the other surfaces except the exit surface 121, so as to further reduce the loss of the light, and improve the probability that the light emitted from the light source 130 enters the light exit plate 110 through the light guide 120, so that the light exit plate 110 can more clearly present the shape of the exit surface 121 of the light guide 120, and thus obtain a good illumination decoration effect. For example, in some embodiments, the entrance face 122 is provided with a reflective layer (not shown), the reflective side of which is disposed towards the exit face. The reflective layer is used to reflect the incident light toward the side of the exit surface 121, and specifically, when the light source 130 emits light, and a portion of the light is directly incident to the reflective layer or is transmitted to the reflective layer through the light guide 120, the reflective layer can reflect the light, so as to prevent the light from being emitted from the incident surface 122, and further, the light is emitted toward the side of the exit surface 121 as much as possible. Of course, when the reflective layer is disposed, the reflective layer may be disposed around the incident surface 122 at the position of the mounting groove 123, so that the reflective layer can reduce the light emitted from the incident surface 122, and the requirement of the mounting groove 123 for mounting the light source 130 can also be satisfied.

Referring to fig. 3, in some embodiments, when the light guide 120 is a hollow structure, the light guide 120 includes an outer side 124 and an inner side 125 opposite to each other, the outer side 124 and the inner side 125 both connect the exit surface 121 and the incident surface 122, and the outer side 124 and the inner side 125 are covered with light blocking layers. Referring to fig. 4, when the light guide 120 is a solid structure, an outer side 124 of the light guide 120 connecting the exit surface 121 and the incident surface 122 is covered with a light blocking layer (not shown). When the light reaches the outer surface 124 of the light guide 120 in the light guide 120, the light blocking layer can reflect the light to the light guide 120, so as to prevent the light from exiting the light guide 120 and being lost. Specifically, the light blocking layer may be made of a light blocking material, and both the light blocking layer and the reflective layer may be made of opaque metal or paint. The light-blocking layer may be made of a light-transmitting material such as plastic, and the refractive index of the light-blocking layer should be smaller than that of the light guide 120, so that the light can be totally reflected on the outer surface 124 of the light guide 120. For example, when the outer side surface 124 of the light guide 120 abuts against the side wall surface 115 of the light guide groove 113, in order to prevent the light from being emitted out of the light guide 120 due to the refractive index of the light emitting plate 110 being greater than the refractive index of the light guide 120, a light blocking layer may be disposed on the outer side surface 124 of the light guide 120, so as to increase the probability of total reflection of the light on the outer side surface 124 of the light guide 120.

Referring to fig. 3, in some embodiments, the light guide groove 113 extends perpendicular to the light emitting surface 111, and correspondingly, the light guide 120 also extends perpendicular to the light emitting surface 111, so that the light emitted from the light source 130 can enter the light emitting plate 110 through the light guide 120 in the shortest path. Of course, in other embodiments, the extending direction of the light guide 120 may be inclined to the light emitting surface 111, or the outer side surface 124 of the light guide 120 forms an arc surface or a corner, as long as the light guide 120 has good light guiding capability and can transmit the light incident from the incident surface 122 to the light emitting surface 121.

Referring to fig. 1 again, it should be noted that, after the light enters the light-emitting plate 110 from the bottom wall surface 114 of the light guide groove 113, the longer the path along the thickness direction of the light-emitting plate 110, the greater the influence of the scattering effect of the light-emitting plate 110 on the light. Therefore, in some embodiments, when the exit surface 121 abuts against the bottom wall surface 114 of the light guide groove 113, a distance between the exit surface 121 and the light exit surface 111, i.e., a distance a shown in fig. 1, is less than or equal to 1mm, so as to reduce a path length that the light passes through in the thickness direction of the light exit plate 110. Further, in some embodiments, the distance a is equal to 1mm, which can ensure that a path of the light passing through the light-emitting plate 110 in the thickness direction is small, and also can reserve a certain processing space on the bottom wall surface 114 of the light guide groove 113, so as to prevent the light-emitting surface 111 of the light-emitting plate 110 from being damaged when the light guide groove 113 is processed, and thus the appearance of the lamp 100 is not affected. Specifically, in some embodiments, the light-emitting plate 110 is made of artificial stone, the thickness of the light-emitting plate 110 is 10mm, the depth of the light guide groove 113 is 9mm, and accordingly, the dimension of the portion of the light guide body 120 embedded in the light guide groove 113 in the thickness direction of the light-emitting plate 110 is also 9mm.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A light fixture, comprising:

the light emitting plate is provided with a light emitting surface and a light incident surface which are opposite, the light incident surface is provided with a light guide groove, and the light emitting plate is made of artificial stone;

the light guide body is provided with an emergent surface and an incident surface which are opposite, the light guide body is embedded into the light guide groove, the emergent surface is opposite to the bottom wall surface of the light guide groove, the light guide body comprises an embedded part and an installation part which are connected with each other, the embedded part is embedded into the light guide groove, the installation part is positioned on one side of the light incident surface of the light emergent plate, and the incident surface is arranged on one side of the installation part, which is far away from the light emergent plate; and

2. A light fixture as recited in claim 1, wherein the cross-sectional shape of the recessed portion conforms to the shape of the light guide groove, and wherein the cross-sectional area of the mounting portion is greater than the cross-sectional area of the recessed portion.

3. The lamp of claim 1, wherein the incident surface has a mounting groove, and the light source is embedded in the mounting groove.

4. A luminaire as claimed in claim 3, characterized in that the entry face is provided with a reflective layer, the reflective side of which is directed towards the exit face.

5. The lamp according to claim 1, wherein the light guide body is a hollow structure, the light guide body comprises an outer side surface and an inner side surface which are opposite to each other, the outer side surface and the inner side surface are both connected with the exit surface and the incident surface, and light blocking layers are covered on the outer side surface and the inner side surface; or

6. The lamp according to claim 5, wherein the light blocking layer is made of a light-transmitting material, and the refractive index of the light blocking layer is smaller than that of the light guide body; or

The light blocking layer is made of shading materials.

7. A light fixture as recited in claim 1, wherein a diffuser is disposed between the light source and the input surface; and/or

The incident surface is configured as a frosted surface or a textured surface.

8. A lamp as recited in any one of claims 1-7, wherein the light guide grooves extend perpendicular to the light exit surface, and an orthogonal projection of the light guide grooves on the light exit surface is square or circular.

9. A lamp as recited in any one of claims 1-7, wherein the exit surface abuts a bottom wall surface of the light guide groove, and a distance between the exit surface and the exit surface is less than or equal to 1mm.

10. A lamp as recited in any one of claims 1-7, wherein a plurality of the light sources are provided, and the plurality of light sources are evenly distributed along the extension direction of the incident surface.