CN213542164U

CN213542164U - Diffusion plate, LED lighting module and LED table lamp

Info

Publication number: CN213542164U
Application number: CN202022112083.7U
Authority: CN
Inventors: 梁曙亮
Original assignee: Signify Holding BV
Current assignee: Signify Holding BV
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-06-25
Anticipated expiration: 2030-09-23

Abstract

The utility model belongs to the technical field of lighting apparatus, especially, relate to a diffuser plate, LED lighting module, LED table lamp. The diffusion plate comprises a plate main body, wherein the plate main body is provided with a light inlet side and a light outlet side which are opposite, the light inlet side is used for being opposite to a light outlet side plane of the LED light source assembly, a plurality of prism protrusions extending in a strip shape are arranged on the light outlet side surface, the prism protrusions are sequentially arranged, and the thickness of the plate main body is gradually reduced in the arrangement direction of the prism protrusions. Use the technical scheme of the utility model the light that shines to the required specific illumination zone scope of work among the prior art can be solved and the problem that reaches the effect that light-emitting light is even, harmonious, no dizzy is difficult to adjust to light.

Description

Diffusion plate, LED lighting module and LED table lamp

Technical Field

The utility model belongs to the technical field of lighting apparatus, especially, relate to a diffuser plate, LED lighting module, LED table lamp.

Background

In many cases, for example, in an office desk, a desk lamp is used for lighting to work, and in order to protect the eye health of people, the light emitted from the desk lamp is dazzled, so that the desk lamp must be placed at a position far away from a user, and the light emitted from the desk lamp is irradiated to a specific lighting area required by work as required to meet the lighting requirement.

In this regard, the prior art is implemented by the following methods:

1. the light emitting illumination is carried out in a wide beam angle mode, namely, light is reflected by utilizing light reflecting elements such as a light reflecting cup and the like, and a light outlet is correspondingly arranged, so that the lamp uses a wide light emitting beam angle, and the illumination area range required by work is covered;

2. the light emitted by the lighting device is subjected to divergent lighting by adopting the diffusion plate, and the divergent light can cover a wider lighting area range, so that the light can irradiate a specific lighting area range required by work;

3. the light emitting illumination is realized by adopting a lens condensation or light scattering mode, and can be realized by condensing light through a convex lens or diffusing light through a concave lens, or by arranging a micro-lens array on a panel to realize light gathering and light emitting illumination so as to reduce horizontal light loss.

However, although the above-mentioned method can cover the specific illumination area range required for work when the desk lamp is placed far away from the user, it is difficult to adjust the outgoing light so that the light irradiated to the specific illumination area range required for work is uniform, harmonious and free from glare.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a diffuser plate, LED lighting module, LED table lamp, aim at solving among the prior art and shine to the required specific lighting area scope of work light be difficult to adjust the problem that reaches the effect that light-emitting light is even, harmonious, no dazzling.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a diffusion plate, diffusion plate includes the board main part, and the board main part has relative income light side and light-emitting side, goes into the light side and is used for setting up relatively with LED light source subassembly's light-emitting side plane, is provided with a plurality of prism archs that the strip extends on the light-emitting side surface, and a plurality of prism archs are arranged in proper order, and on the bellied array direction of a plurality of prisms, the thickness of board main part diminishes gradually.

Optionally, the heights of the prism protrusions relative to the light-emitting side surface are equal, the extending directions of the ridge lines of two adjacent prism protrusions are the same, and the ridge lines of the prism protrusions are arranged at equal intervals.

Alternatively, the cross-sectional profile of the prism projection is triangular, and the prism projection is inclined with respect to a direction in which the light exit-side surface gradually thickens toward the plate body of the diffuser plate.

Optionally, a mounting shoulder is provided at the thick end of the diffuser plate for connecting the diffuser plate to the LED lighting module.

According to the utility model discloses a further aspect provides a LED lighting module. Specifically, this LED lighting module includes casing, LED light source subassembly, driver and diffuser plate, and the casing is formed with the assembly space, and the casing is equipped with the light-emitting mouth, and LED light source subassembly is installed in the assembly space, LED light source subassembly and driver electric connection, and the diffuser plate is installed in the light-emitting mouth, and the diffuser plate is aforementioned diffuser plate, and the income light side surface of the board main part of diffuser plate sets up for the slope of the light-emitting side plane of LED light source subassembly.

Optionally, in a direction in which the plate body of the diffusion plate gradually thickens, a distance between the light-incident side surface of the plate body of the diffusion plate and the light-emitting side plane of the LED light source assembly gradually decreases.

Optionally, the LED light source assembly includes light guide plate, reflective membrane and LED lamp strip, and the light guide plate is just to setting up with the diffuser plate, and the face of light guide plate orientation diffuser plate is the light-emitting side plane of LED light source assembly, and the face that the light guide plate deviates from the diffuser plate is the back, and the reflective membrane covers in the back of light guide plate, and one side of light guide plate towards LED lamp strip is the income light side of LED light source assembly, and LED lamp strip sets up in going into.

Optionally, the light incident side surface of the LED light source assembly is disposed corresponding to the thin end of the diffusion plate.

Optionally, the LED lighting module includes a first lamp section and a second lamp section, a first end of the first lamp section is connected to a first end of the second lamp section, a second end of the first lamp section and a second end of the second lamp section are both free extension ends, and the first lamp section and the second lamp section form a V-shape.

According to another aspect of the utility model, a LED table lamp is provided. Specifically, this LED table lamp includes base, bracing piece and lamp holder, and the first end of bracing piece is connected in the base, and the lamp holder is aforementioned LED lighting module, and the first end of first lamp section is connected with the second end of bracing piece with the junction of the first end of second lamp section.

The utility model discloses following beneficial effect has at least:

use the utility model provides a diffusion plate assembles LED lighting module, especially assembles the LED table lamp, and the light of transmission is carried out the refraction printing opacity by the board main part of this diffusion plate and is propagated to go into the protruding back light-emitting illumination of propagating of prism. Light has carried out refraction for the first time in the board main part, because the thickness gradual change of the board main part of this diffuser plate for the position of the different thickness of board main part is different to the refracting power of light, and, it is protruding to have set up a plurality of prisms on the light-emitting side surface of board main part, and light just carried out refraction for the second time through the protruding propagation of each prism. The light is transmitted by two times of refraction in a preset manner, the light transmission path of the light is changed, then the light is emitted for illumination, the LED illumination module or the LED desk lamp is placed at a position far away from a user, the light can be irradiated to a specific area range required by work, the working requirement of the user is met, the influence of dazzling and dazzling of the light is eliminated, the light can be basically and completely irradiated to the specific illumination area range required by the work after the light is transmitted by two times of refraction, the luminous fluxes of the light at all positions in the specific illumination area range are basically consistent, the purposes of uniformity and coordination of the light emitting light are achieved, and the eye health of the user is protected.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic perspective view of a diffuser plate according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged view at B in FIG. 2;

fig. 4 is an exploded schematic view of an LED lighting module according to an embodiment of the present invention;

fig. 5 is a schematic perspective view of an LED desk lamp according to an embodiment of the present invention;

fig. 6 is a sectional view taken along the direction C-C in fig. 5.

Wherein, in the figures, the respective reference numerals:

10. a diffusion plate; 11. a light incident side; 12. a light emitting side; 121. the prism is convex; 122. assembling a shoulder; 100. A housing; 101. a light outlet; 102. a shell cover; 103. a middle shell; 104. a lower case; 105. an assembly space; 110. an LED light source assembly; 111. a light guide plate; 112. a light-reflecting film; 113. an LED light bar; 120. a driver; 210. a base; 220. a support bar; 221. a vertical support section; 222. a horizontal connecting section; 230. a lamp cap; 231. a first lamp segment; 232. a second lamp segment; 240. and (4) a switching component.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", etc. 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," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

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

As shown in fig. 1 to 3, an embodiment of the present invention provides a diffuser plate 10, which is used for assembling an LED lighting module, especially an LED desk lamp with LEDs emitting light, and the light is refracted by the diffuser plate 10 and transmitted to be emitted for illumination. Specifically, this diffuser plate 10 includes the board main part, and the board main part has income light side 11 and light-emitting side 12, and income light side 11 sets up with light-emitting side 12 relatively, and income light side 11 surface and light-emitting side 12 surface are the plane, and light has carried out the refraction propagation for the first time in the board main part that diffusion plate 10 was incided to by income light side 11, then light from light-emitting side 12 outgoing entering prism arch 121 carried out the refraction propagation for the second time, then the light-emitting illumination. The surface of the light-emitting side 12 is provided with a plurality of prism protrusions 121 extending in a strip shape, so that the light is refracted for the second time by the prism protrusions 121, and the path of the light emitted can be changed more remarkably. The thickness of the plate body of the diffuser plate 10 is gradually reduced (made thinner by thickness) in the arrangement direction of the plurality of prism protrusions 121. In this embodiment, the vertex of the cross section of the prism protrusion 121, which is far from the surface of the light-emitting side 12, moves along the extending direction of the length of the prism protrusion 121 to form a ridge line, the ridge line extends parallel to the surface of the light-emitting side 12, the arrangement direction of the prism protrusions 121 is the direction perpendicular to the ridge line of the prism protrusion or protrusions 121, the arrangement direction of the prism protrusions 121 is the direction indicated by the arrow Q in fig. 2, and the arrangement direction is the direction in which the thickness of the plate body of the diffusion plate 10 gradually decreases from the thickness. Accordingly, the end of the diffusion plate 10 with the smaller plate body thickness is the thin end of the diffusion plate 10, and the end with the larger plate body thickness is the thick end of the diffusion plate 10.

Use the utility model provides a diffuser plate 10 assembles LED lighting module, especially assembles the LED table lamp, and the light of transmission is penetrated into by the income light side 11 of the board main part of this diffuser plate 10 and is carried out the refraction printing opacity and propagate to light gets into the protruding 121 propagation back light-emitting illumination of prism. Light has carried out refraction for the first time in the board main part, because the thickness of the board main part of this diffuser plate 10 is gradual change for the refractive power of the position of the different thickness of board main part to light is different, and, set up a plurality of prism archs 121 on the light-emitting side 12 surface of board main part, light has just carried out refraction for the second time through the transmission of each prism arch 121. Through carrying out predetermined twice refraction propagation to light, the light propagation path of light has been changed, then the illumination of light-emitting, even LED lighting module or LED desk lamp are placed in the position department of keeping away from the user, also can make light shine to the required specific area scope of work, and eliminate the influence that light dazzles, and light can basically all shine to the required specific illumination area scope of work after two times of refraction propagation, the luminous flux of light is unanimous basically on each position in this specific illumination area scope, reached the even, harmonious purpose of light-emitting light, be favorable to protecting user's eye health.

In the present embodiment, the height of each prism protrusion 121 with respect to the surface of the light exit side 12 of the plate body is equal, and when the prism protrusions 121 are arranged, the extending direction of the ridge lines of two adjacent prism protrusions 121 is the same, and the plurality of prism protrusions 121 are arranged at intervals and uniformly.

As shown in fig. 2 and 3, the cross-sectional profile of each prism projection 121 perpendicular to the ridge line is triangular. In addition, the cross-sectional profile of each prism protrusion 121 may also be a trapezoid, an arc-shaped curved top, a semicircle, etc., only if the second refraction and propagation of the light can be completed according to the predetermined path, and in the diffuser plate 10 of the present embodiment, the cross-sectional profile of the prism protrusion 121 is preferably a triangle. As shown in fig. 3, the prism protrusions 121 have a triangular cross section, and the triangular cross section is inclined in a direction opposite to the arrangement direction of the prism protrusions 121 (i.e., the triangular cross section is inclined in a direction opposite to the Q arrow shown in fig. 2). Further, in the diffuser plate 10 of the present embodiment, as shown in fig. 3, an included angle β formed by the tooth surface of the triangular prism protrusion 121 close to the thin end of the diffuser plate 10 and the surface of the light-emitting side 12 is smaller than an included angle θ formed by the tooth surface of the prism protrusion 121 close to the thick end of the diffuser plate 10 and the surface of the light-emitting side 12 (β < θ). The structure of the prism protrusion 121 is designed in such a way, so that on the basis of ensuring that the light irradiates to a specific area range according to a preset path, the light quantity of the light is basically equal, the light emitting is uniform and soft, dazzling is avoided, and the eye health of a user is effectively protected.

As shown in fig. 2, a mounting shoulder 122 is provided at the thick end of the diffuser plate 10, and the thickness of the mounting shoulder 122 is equal throughout. A mounting shoulder 122 may also be mounted at the thin end of the diffuser plate 10 for attaching the diffuser plate to an LED lighting module. That is, the diffusion plate 10 is mounted in an LED lighting module or an LED desk lamp by means of the mounting shoulder 122.

According to the utility model discloses a further aspect, as shown in fig. 4, provides a LED lighting module, and this LED lighting module can be the panel light of installing on the ceiling, can be the wall-hanging searchlight of installing on the wall, can also be the lamp holder that the LED desk lamp is used for the illumination of light-emitting, etc.. Specifically, the LED lighting module includes a housing 100, an LED light source assembly 110, a driver 120, and a diffusion plate 10, which form a core component of the LED lighting module. In the present embodiment, the housing 100 is formed with an assembly space 105, and the housing 100 is provided with a light outlet 101, specifically, the housing 100 includes a lower shell 104, a middle shell 103 and a housing cover 102, the lower shell 104 and the middle shell 103 together form the assembly space 105, and the housing cover 102 is attached to the top of the middle shell 103 to beautify the appearance surface. In the LED lighting module, the LED light source assembly 110 and the driver 120 are both installed in the assembly space 105, the LED light source assembly 110 is electrically connected to the driver 120, the diffusion plate 10 is installed at the light outlet 101, the diffusion plate 10 is the diffusion plate, and the surface of the light inlet side 11 of the plate body is inclined relative to the plane of the light outlet side of the LED light source assembly 110 in the process of assembling the diffusion plate 10 to the LED lighting module.

After the diffusion plate 10 is assembled in the LED lighting module, the light incident side 11 of the plate body of the diffusion plate 10 is arranged opposite to the light emergent side plane of the LED light source assembly 110 (namely, the light irradiated by the LED light source assembly 110 is incident into the plate body from the light incident side 11), and the light incident side 11 surface of the diffusion plate 10 is inclined relative to the light emergent side plane of the LED light source assembly 110 during the assembly, so that an included angle is formed between the light emitted from the light emergent side plane of the LED light source assembly 110 and the light incident side 11 surface of the diffusion plate 10, and therefore the purpose of refraction and propagation of the light according to a predetermined path is achieved.

Moreover, when the diffusion plate 10 is assembled, the plane where the ridge of each prism protrusion 121 is located is parallel to the light-emitting side plane of the LED light source assembly 110 (at this time, the surface of the light-emitting side 11 of the plate body will automatically be inclined relative to the light-emitting side plane of the LED light source assembly 110, wherein the light-emitting side plane of the LED light source assembly 110 is always horizontal). In the assembled LED lighting module, the diffusion plate 10 is integrally formed into a fine granular appearance of the regular prism protrusions 121, so as to meet the aesthetic requirement of the user on the appearance of the lamp. Preferably, the height from the edge line of each prism protrusion 121 to the surface of the light-emitting side 12 of the diffuser plate is equal, so that the refractive propagation path length of each prism protrusion 121 for the light is the same, and thus the light loss of the light after the light propagates through each prism protrusion 121 is substantially equal, and the light quantity of the light after the light propagates through each prism protrusion 121 is substantially the same.

In addition, since the prism protrusions 121 are inclined toward the thick end of the prism protrusions 121, that is, each prism protrusion 121 is inclined toward the direction in which the plate body of the diffusion plate 10 gradually thickens, and when assembled, in the arrangement direction of the plurality of prism protrusions 121 (the direction of the arrow Q shown in fig. 2), the distance between the surface of the light-incident side 11 of the plate body of the diffusion plate 10 and the light-emitting side plane of the LED light source assembly 110 gradually increases, that is, the distance between the surface of the light-incident side 11 of the plate body of the diffusion plate 10 and the light-emitting side plane of the LED light source assembly 110 gradually increases from the light source end to the light source end of the LED light source assembly 110. Therefore, in the assembled LED lighting module, the light emitted from the diffusion plate 10 is radiated in a direction away from the thin end of the plate body (see the light propagation arrow shown in fig. 6 in combination), so that the radiated light is radiated to other specific area range deviated from the position directly below the diffusion plate 10.

When the diffusion plate 10 is assembled on the LED lighting module, the housing 100 is connected through the assembling shoulder 122 of the plate body, and since the thicknesses of the assembling shoulder 122 are equal, the following assembling relations are automatically completed after the assembling is completed: the plane where the ridge of each prism protrusion 121 is located is parallel to the light-emitting side plane of the LED light source assembly 110, and the surface of the light-entering side 11 of the plate body is inclined with respect to the light-emitting side plane of the LED light source assembly 110 (and it is satisfied that the distance between the surface of the light-entering side 11 of the plate body and the light-emitting side plane of the LED light source assembly 110 gradually increases along the arrangement direction, i.e., the direction indicated by the arrow Q), the assembly is simple and fast, and no measurement or adjustment is required.

The utility model discloses an among the LED lighting module, shine to the planar income light scope of the light side of going into 11 in order to enlarge, consequently, LED light source subassembly 110 includes light guide plate 111, reflective membrane 112 and LED lamp strip 113, and light guide plate 111 is just to setting up with diffuser plate 10 (namely, between diffuser plate 10 and light guide plate 111, the light side plane of going into light side 11 and LED light source subassembly 110 sets up relatively). The light guide plate 111 is the light-emitting side plane of LED light source assembly 110 towards the face of diffuser plate 10, the face of light guide plate 111 that deviates from diffuser plate 10 is the back, reflective film 112 covers in the light guide plate 111 back, one side of light guide plate 111 towards LED light bar 113 is the light-in side of LED light source assembly 110, the light-in side of this LED light source assembly 110 corresponds the setting with the thin end of diffuser plate 10, and the light-in side of LED light source assembly 110 corresponds with the thin end of diffuser plate 10, that is, the LED light bar 113 that sets up in the light-in side corresponds with the thin end of diffuser plate 10, refer to the light propagation arrow shown in fig.

Moreover, the LED lighting module includes a first lamp section 231 and a second lamp section 232, a first end of the first lamp section 231 is connected to a first end of the second lamp section 232, a second end of the first lamp section 231 and a second end of the second lamp section 232 are both free extension ends, and the first lamp section 231 and the second lamp section 232 form a V-shape.

According to another aspect of the present invention, as shown in fig. 5 and 6, an LED desk lamp is provided. Specifically, the LED desk lamp includes a base 210, a supporting rod 220 and a lamp cap 230, wherein a first end of the supporting rod 220 is connected to the base 210, the lamp cap 230 is the aforementioned LED lighting module, and a joint between a first end of a first lamp segment 231 and a first end of a second lamp segment 232 of the LED lighting module is connected to a second end of the supporting rod 220.

When the diffuser 10 is assembled and applied to an LED desk lamp, the thin end of the diffuser 10 is close to the support rod 220, and the LED light bar 113 is also close to the support rod 220. Referring to the light propagation arrows shown in fig. 6 in combination, at this time, the light emitted from the diffusion plate 10 is irradiated to a specific area range away from the support rods 220 and deviated from the right below the diffusion plate 10 for illumination. That is, the user can place the LED desk lamp at a position away from the user's work on the desk, the LED light bars 113 emit light and irradiate into the light guide plate 111 from the light incident side of the light guide plate 111, and after the light is guided by the light guide plate 111, the light is incident into the plate body from the light incident side 11 of the plate body of the diffusion plate 10, so that the light is refracted and propagated twice in sequence through the plate body of the diffusion plate 10 and the prism protrusions 121, and finally the light emitted from the prism protrusions 121 irradiates into a specific area range according to a predetermined irradiation path for illumination. Therefore, the LED table lamp far away from the user does not cause dazzling trouble to the eyes of the user any more, and the emergent light rays are uniform and soft after being refracted and transmitted by the diffusion plate 10, so that the eye health of the user can be well protected. And moreover, the LED table lamp far away from the user does not occupy the front desktop of the user any more, and a wider desktop range is reserved for the user to work.

In the structural design of the LED desk lamp, the supporting rod 220 is bent to form a vertical supporting section 221 and a horizontal connecting section 222, the end of the vertical supporting section 221 is connected to the base 210, and the middle position of the lamp cap 230 (i.e. the connection between the first end of the first lamp section 231 and the first end of the second lamp section 232) is connected to the end of the horizontal connecting section 222, so as to form a classic style of the LED desk lamp. The lamp base 230 is divided into a first lamp segment 231 and a second lamp segment 232 with respect to the central axis of the horizontal connecting segment 222, and the first lamp segment 231 and the second lamp segment 232 form a V-shape (the joint of the first end of the first lamp segment 231 and the first end of the second lamp segment 232 is the corner position of the V-shape), so that the appearance shape of the diffusion plate 10 is adapted to the V-shape.

Further, the LED desk lamp further includes a switching assembly 240, the switching assembly 240 is rotatably connected to an end of the horizontal connecting section 222, and a middle position of the lamp head 230 is rotatably connected to the switching assembly 240, so that a user can adjust the direction of the light emitted from the diffusion plate 10 according to needs, thereby adjusting the lighting direction and angle, and adjusting the position range to be lighted. Specifically, the adapting assembly 240 includes two rotating shafts disposed perpendicular to each other, one of the rotating shafts is rotatably connected to the horizontal connecting section 222, and the other rotating shaft is rotatably connected to the lamp head 230, that is, the lamp head 230 has two degrees of freedom of rotation adjustment relative to the supporting rod 220 through the adapting assembly 240 (the adapting assembly 240 rotates relative to the supporting rod 220, and the lamp head 230 rotates relative to the adapting assembly 240), so that the user can adjust the lamp head 230 more conveniently and flexibly.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a diffusion plate, diffusion plate (10) includes the board main part, the board main part has relative income light side (11) and light-emitting side (12), it is used for setting up relatively with the light-emitting side plane of LED light source subassembly (110) to go into light side (11), its characterized in that: the light-emitting side (12) is provided with a plurality of prism bulges (121) extending in a strip shape on the surface, the prism bulges (121) are sequentially arranged, and the thickness of the plate main body is gradually reduced in the arrangement direction of the prism bulges (121).

2. The diffuser plate of claim 1, wherein:

the height of the prism protrusions (121) relative to the surface of the light emitting side (12) is equal, the extending directions of the edge lines of two adjacent prism protrusions (121) are the same, and the edge lines of the prism protrusions (121) are uniformly arranged at intervals.

3. A diffuser plate according to claim 1 or 2, wherein:

the cross-sectional profile of the prism projection (121) is triangular, and the prism projection (121) is inclined with respect to the direction in which the light exit side (12) surface gradually thickens toward the plate body of the diffusion plate (10).

4. A diffuser plate according to claim 3, wherein:

and the thick end of the diffusion plate (10) is provided with an assembling shoulder (122) for connecting the diffusion plate (10) to the LED lighting module.

5. The utility model provides a LED lighting module which characterized in that:

including casing (100), LED light source subassembly (110), driver (120) and diffuser plate (10), casing (100) are formed with assembly space (105), just casing (100) are equipped with light-emitting window (101), LED light source subassembly (110) install in assembly space (105), LED light source subassembly (110) with driver (120) electric connection, diffuser plate (10) install in light-emitting window (101), diffuser plate (10) be any one of claims 1 to 4 the diffuser plate, just the board main part of diffuser plate (10) light side (11) surface for the setting of light-emitting side plane slope of LED light source subassembly (110).

6. The LED lighting module of claim 5, wherein:

along the direction of the gradual thickening of the plate body of the diffusion plate (10), the distance between the surface of the light incidence side (11) of the plate body of the diffusion plate (10) and the plane of the light emergence side of the LED light source assembly (110) is gradually reduced.

7. The LED lighting module of claim 6, wherein:

LED light source subassembly (110) includes light guide plate (111), reflective membrane (112) and LED lamp strip (113), light guide plate (111) with diffuser plate (10) is just to setting up, light guide plate (111) orientation the face of diffuser plate (10) does the light-emitting lateral plane of LED light source subassembly (110), light guide plate (111) deviates from the face of diffuser plate (10) is the back, reflective membrane (112) cover in the back of light guide plate (111), the orientation of light guide plate (111) one side of LED lamp strip (113) is the income light side of LED light source subassembly (110), LED lamp strip (113) set up in go into the light side.

8. The LED lighting module of claim 5, wherein:

the light incident side surface of the LED light source assembly (110) is arranged corresponding to the thin end of the diffusion plate (10).

9. The LED lighting module of claim 7, wherein:

the LED lighting module comprises a first lamp section (231) and a second lamp section (232), wherein the first end of the first lamp section (231) is connected with the first end of the second lamp section (232), the second end of the first lamp section (231) and the second end of the second lamp section (232) are free extension ends, and the first lamp section (231) and the second lamp section (232) form a V-shaped shape.

10. The utility model provides a LED table lamp which characterized in that: the LED lighting module comprises a base (210), a supporting rod (220) and a lamp cap (230), wherein the first end of the supporting rod (220) is connected to the base (210), the lamp cap (230) is the LED lighting module in claim 9, and the joint of the first end of the first lamp section (231) and the first end of the second lamp section (232) is connected to the second end of the supporting rod (220).