CN213814021U - Anti-dazzle light source module and anti-dazzle lighting device - Google Patents
Anti-dazzle light source module and anti-dazzle lighting device Download PDFInfo
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- CN213814021U CN213814021U CN202023277382.2U CN202023277382U CN213814021U CN 213814021 U CN213814021 U CN 213814021U CN 202023277382 U CN202023277382 U CN 202023277382U CN 213814021 U CN213814021 U CN 213814021U
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- glare
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- guide plate
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Abstract
The utility model discloses an anti-dazzle light source module, include: a light guide plate and an antiglare member which are stacked; the light guide plate is provided with a first surface and a second surface opposite to the first surface, and the first surface is provided with screen dots; the antiglare member is disposed on a second surface side of the light guide plate and has a third surface and a fourth surface, the third surface being in direct contact with the second surface; wherein the density of the dots on the first surface is above 2.2 × 103/mm 2; at least one of the second surface and the third surface is a non-smooth surface; an anti-glare structure is disposed on the fourth surface. The utility model also discloses an anti-dazzle lighting device. The utility model provides an anti-dazzle light source module can accomplish not needing diffusion barrier or diffuser plate just to make the light source module reach the requirement that luminous even and UGR < 19.
Description
Technical Field
The utility model relates to a lighting apparatus technical field especially relates to an anti-dazzle light source module and anti-dazzle lighting device.
Background
In recent years, all indoor lamps exiting the european union have standards for Glare prevention, and UGR (Unified Glare Rating) limit is one of the mandatory standards for lamps. Too much UGR can cause users uncomfortable feelings of glare, emotional stress, anxiety, etc. The requirements for the glare and the illumination comfort experience of the illumination lamps are higher and higher in China, and the UGR is also highly required in the environments of education, medical treatment, high-end office places and the like in the domestic market. For example, in educational, medical, high-end office settings, minimum glare rating requirements for luminaires are specified as UGR < 19.
The common anti-glare panel lamp in the market at present is generally a three-piece combination mode of a light guide plate + (a diffusion film or a diffusion plate) + (a prism plate or a microstructure anti-glare film) attaching plate. Therefore, light emitted from the light source needs to sequentially pass through three optical assemblies, namely, a light guide plate, a diffusion film or a diffusion plate, and a prism plate or a microstructure anti-glare film, however, the more optical assemblies the light passes through, the lower the luminous efficiency is, and the higher the manufacturing cost of the lamp structure is, so that a light source module with fewer optical assemblies and uniform light emission and anti-glare effects is needed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an anti-dazzle light source module and anti-dazzle lighting device to solve optical component in the current anti-dazzle light source module many, the light efficiency is low, the higher technical problem of manufacturing cost.
In order to solve the above problem, the utility model adopts the following technical scheme:
according to an aspect of the present application, there is provided an anti-glare light source module, including: a light guide plate and an antiglare member which are stacked; the light guide plate is provided with a first surface and a second surface opposite to the first surface, and the first surface is provided with screen dots; the antiglare member is disposed on a second surface side of the light guide plate and has a third surface and a fourth surface, the third surface being in contact withThe second surface is in direct contact; wherein the density of the dots on the first surface is 2.2 x 103Per mm2The above; at least one of the second surface and the third surface is a non-smooth surface; an anti-glare structure is disposed on the fourth surface.
Optionally, the dots are dots formed by a hot pressing process.
Optionally, the non-smooth surface is a frosted surface or a surface provided with microstructures.
Optionally, the second surface is a non-smooth surface, which is a surface provided with a microstructure.
Optionally, the third surface is a smooth surface, a frosted surface or a surface provided with a microstructure.
Optionally, the microstructure is an array formed by arranging micro-protrusions, and the projection profile of the micro-protrusions on the second surface or the third surface is enclosed by straight lines and/or arc lines; the thickness of the microstructure is within the range of 0.01-0.1 mm.
Optionally, the micro-protrusions are arc-shaped protrusions or sharp-angle-shaped protrusions relative to the second surface or the third surface.
Optionally, the antiglare component is a prismatic crystal plate, and the antiglare structure on the prismatic crystal plate is a prismatic crystal; or the anti-dazzle piece is an anti-dazzle film, and the anti-dazzle structure on the anti-dazzle film is a microstructure.
Optionally, the dots are V-shaped grooves recessed into the first surface.
Optionally, the anti-glare light source module further comprises a light source and a frame assembly having a receiving space, the light source, the light guide plate and the anti-glare member are disposed in the receiving space of the frame assembly, and light emitted by the light source enters the light guide plate from a side of the light guide plate perpendicular to the first surface and the second surface.
Optionally, the frame assembly includes an aluminum frame and a back plate fastened to each other, and the aluminum frame and the back plate form the accommodating space.
Optionally, an EPE pad and a reflective paper are further included between the back plate and the light guide plate; the EPE pad is disposed adjacent to the back plate, and the reflective paper is disposed adjacent to the light guide plate.
According to a second aspect of the present application, there is provided an anti-glare lighting device employing the anti-glare light source module according to the first aspect of the present application.
The utility model discloses a technical scheme can reach following beneficial effect:
the utility model provides an anti-dazzle light source module can accomplish not needing diffusion barrier or diffuser plate just to make the light source module reach the requirement that luminous even and UGR < 19, is favorable to improving light efficiency and reduce cost.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:
fig. 1 is a cross-sectional view of an anti-glare light source module according to the present invention;
FIG. 2 is a partial enlarged view of region B in FIG. 1;
fig. 3 is an exploded view of an anti-glare light source module according to the present invention;
FIG. 4a is a plane isolux curve obtained by a matching test of an anti-glare light source module using a prism plate with a smooth surface on one side and a prism on the other side;
FIG. 4b is a rectangular isocandela curve obtained by a mapping test of an anti-glare light source module using a prism plate with a smooth surface on one side and prisms on the other side;
FIG. 5a is a plane isolux curve obtained by a mapping test of an anti-glare light source module using a prism plate with a microstructure on one side and prisms on the other side;
fig. 5b is a rectangular isocandela curve obtained by a mapping test of an anti-glare light source module using a prism plate having a microstructure on one surface and a prism on the other surface.
Description of reference numerals:
1 aluminum frame
2 screw
3 light source board
31 light source
4 anti-dazzle piece
41 fourth surface
42 third surface
6 light guide plate
61 second surface
62 first surface
7 reflective paper
8EPE pad
9 Back plate
Detailed Description
To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 2, according to an embodiment of the present application, there is provided an anti-glare light source module including: a light guide plate 6 and an antiglare member 4 which are stacked; the light guide plate 6 has a first surface 62 and a second surface 61 opposite to the first surface 62, the first surface 62 is provided with dots; the dazzle prevention member 4 is disposed on the second surface side of the light guide plate 6 and has a third surface 42 and a fourth surface 41, the third surface 42 being in direct contact with the second surface 61; wherein the density of the dots on the first surface 62 is 2.2 × 103Per mm2The above; at least one of the second surface 61 and the third surface 42 is a non-smooth surface; an antiglare structure is provided on the fourth surface 41.
The diffusion film or plate mainly plays a main role in scattering light so as to make the light emission more uniform.In the present embodiment, the dot density on the light guide plate 6 is controlled to be 2.2 × 103Per mm2In the above, taking a 600 × 600 size lamp panel as an example, the number of the dots of the light guide plate reaches more than 800 ten thousand, the dot pitch is small, light does not need to be scattered by using a diffusion film, and the light-emitting uniformity is also good. However, even in this case, if the diffusion film or the diffusion plate is directly eliminated, the non-mesh surface of the light guide plate 6 is a smooth surface that is fitted on the smooth surface of the dazzle prevention member 4, and thus the watermark phenomenon is easily caused, and therefore, in the present embodiment, the contact surface of the light guide plate 6 and the dazzle prevention member 4, for example, at least one of the second surface 61 and the third surface 42 is set to be a non-smooth surface, thereby avoiding the influence on the uniformity of light due to the watermark.
The screen printing and laser forming technology of the light guide plate in the early stage mainly adopts 600 × 600-sized lamp panel as an example, the number of the laser or screen printing screen points is about one million, the space between the screen points is large, and light needs to be scattered by a diffusion film or a diffusion plate so that light can be uniformly emitted. In this embodiment, the dots can be formed by a hot-pressing process, and the hot-pressing process can form more than 800 ten thousand dots, even up to ten million dots, in an area with a size of 600 × 600, so that the dot density is greatly improved, the dot pitch is reduced, and good light-emitting uniformity can be realized without a diffusion film or a diffusion plate.
In particular, the non-smooth surface is a frosted surface or a surface provided with microstructures. By such an arrangement, the light guide plate 6 is prevented from being watermarked by direct contact with the dazzle prevention member 4 through the light surface.
In the present embodiment, the antiglare member 4 may be a prism sheet whose antiglare structure is a prism, that is, a prism sheet whose one surface is a prism surface. Of course, it will be understood by those of ordinary skill in the art that in other embodiments, the antiglare member 4 may be a self-microstructured antiglare film (i.e., a microstructured antiglare film). The prism plate or the anti-dazzle film can be used for collecting light emitted by the light source module within 90 degrees, so that high-angle light above 65 degrees is restrained, visual glare is reduced, and the UGR value of the lamp is effectively reduced.
Further, the second surface 61 is a non-smooth surface, which may be a surface provided with a microstructure; the third surface 42 may be a smooth surface, a frosted surface or a surface provided with a microstructure. By providing the second surface 61 with a microstructure, which, in addition to the light control and light effect enhancement, is more important, a watermark is prevented from appearing between the second surface 61 and the third surface 42, and in the lighting device, the watermark is an absolute defect to be avoided, and the appearance of the watermark will also affect the uniformity of the light. At the same time, the present application has also designed the third surface 42, for example, to be a frosted or microstructured surface, and further investigated the effect of the different designs of the third surface 42 on the optical effect. For example, in some embodiments, the third surface 42 is designed to be a plane, and a mapping test is performed on an anti-glare light source module using a prism plate having a prism crystal on the third surface 42 and a prism crystal on the fourth surface 41, and the obtained plane isoluminance curve and the obtained rectangular isoluminance curve are shown in fig. 4a and 4b, as shown in fig. 4a and 4b, although the visual picture uniformity can be achieved by using one surface of the prism plate (i.e., the third surface 42) as the light surface, the light distribution curve in the light distribution test has a slightly elliptical shape, and the light spot can also be used, but the light distribution is designed to have a lambertian symmetric structure with better uniformity, and the third surface 42 can be further designed. In other embodiments, the third surface 42 is designed to be a surface with a microstructure, and a mapping test is performed on the anti-glare light source module using a prism plate with a microstructure on the third surface 42 and a prism on the fourth surface 41, and the obtained planar isoluminance curve and the rectangular isoluminance curve are shown in fig. 5a and 5b, as can be seen from fig. 5a and 5b, where the third surface 42 of the prism plate is a microstructure, and the microstructure can compensate for elliptical light distribution in optical design, so that the light distribution becomes a lambertian spot close to a circle. In still other embodiments, the third surface 42 is designed as a frosted surface, and the pattern matching test is performed on the anti-glare light source module using the prism plate with the third surface 42 as a frosted surface and the fourth surface 41 having prisms, and the test result is substantially identical to that of fig. 5a and 5b, so the test result diagram is not shown in this application. The test result shows that the frosted surface has the same function as a diffusion plate or a diffusion film, so that light rays are scattered, pictures are uniform, and finally round light spots can be obtained.
In this embodiment, the microstructures on the second surface 61 or the third surface 42 may be an array formed by arranging micro-protrusions, and the projection profile of the micro-protrusions on the second surface 61 or the third surface 42 may be entirely defined by straight lines or entirely defined by arc lines, or may be defined by both straight lines and arc lines. For example, when the projected contour of the microprotrusions is surrounded by straight lines, the projected contour of the microprotrusions may be triangular, quadrilateral, pentagonal, hexagonal, octagonal, or the like; when the projection profile of the microprotrusions is defined by an arc, the projection profile of the microprotrusions may be circular, elliptical, olive-shaped, or the like. Meanwhile, the micro-protrusions may also be arc-shaped or sharp-angled protrusions in the thickness direction relative to the second surface 61 or the third surface 42, so that the micro-protrusions have a more complex three-dimensional configuration. For example, when the micro-protrusions are arc-shaped protrusions with respect to the second surface 61 or the third surface 42, and the projection profile is circular, the micro-protrusions may be hemispherical as a whole; for another example, when the micro-protrusions are pointed protrusions with respect to the second surface 61 or the third surface 42, and the projection profile is circular, the micro-protrusions may be conical as a whole; for another example, when the micro-protrusions are pointed protrusions corresponding to the second surface 61 or the third surface 42, and the projection profile is triangular, quadrangular, hexagonal or octagonal, the corresponding overall structure of the micro-protrusions is triangular pyramid, rectangular pyramid, hexagonal pyramid or octagonal pyramid in turn, and so on, and will not be described again.
The thickness of the microstructures provided in the embodiments of the present application is generally in the range of 0.01 to 0.1mm, and it should be understood by those skilled in the art that the microstructures on the second surface 61 or the third surface 42 may have different sizes, shapes or arrangements of microstructures in other embodiments.
In this embodiment, the dots may be V-shaped grooves recessed into the first surface 62, and the V-shaped grooves are formed on the surface of the light guide plate 6, so that the effect of uniform light emission without a diffusion film or a diffusion plate is achieved by the dot structure.
The anti-glare light source module may further include a light source 31 and a frame assembly having an accommodating space, as shown in fig. 1, the light source 31 is disposed on the light source plate 3; as shown in fig. 3, the frame assembly includes an aluminum frame 1 and a back plate 9 that are fastened to each other, and the aluminum frame 1 and the back plate 9 form an accommodating space; the light source 31, the light guide plate 6, and the dazzle prevention member 4 are disposed in the receiving space of the frame assembly, and light emitted from the light source 31 enters the light guide plate 6 from a side of the light guide plate 6 perpendicular to the first surface and the second surface.
As shown in fig. 3, an EPE pad 8 and a reflective paper 7 may be further included between the back sheet 9 and the light guide plate 6; the EPE pad 8 is disposed adjacent to the back sheet 9, and the reflective paper 7 is disposed adjacent to the light guide plate 6. When the light source module in this embodiment is assembled, the light source plate 3 is first mounted on the aluminum frame 1, then the antiglare part 4, the light guide plate 6, the reflective paper 7, the EPE pad 8, and the back plate 9 are sequentially mounted in the aluminum frame 1, and then several parts mentioned above, such as the back plate 6, are fixed in the aluminum frame 1 by the screws 2.
According to another embodiment of the present application, there is provided an anti-glare lighting device using the anti-glare light source module according to the above embodiments of the present application, wherein the anti-glare lighting device may be an anti-glare flat lamp.
The utility model discloses an use the one side to have the site, the another side has the light guide plate of micro-structure, and the cooperation one side has anti-dazzle structure (for example, arris brilliant board or the anti-dazzle membrane of micro-structure), and the another side can be smooth surface, dull polish or the anti-dazzle piece of micro-structure can accomplish not needing diffusion barrier or diffuser plate just to make the light source module reach UGR < 19 requirement. Compared with the existing common anti-glare panel lamp which is in a structure of a prism plate, a diffusion film and a light guide plate, the anti-glare panel lamp has the advantages that one diffusion film is omitted compared with the prior art, the assembly is simplified, the light efficiency is improved, the cost is reduced, and the high-product competitiveness is improved.
The utility model discloses what the key description in the above embodiment is different between each embodiment, and different optimization characteristics are as long as not contradictory between each embodiment, all can make up and form more preferred embodiment, consider that the literary composition is succinct, then no longer describe here.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (11)
1. An anti-glare light source module, comprising: a light guide plate and an antiglare member which are stacked;
the light guide plate is provided with a first surface and a second surface opposite to the first surface, and the first surface is provided with screen dots;
the antiglare member is disposed on a second surface side of the light guide plate and has a third surface and a fourth surface, the third surface being in direct contact with the second surface;
wherein the density of the dots on the first surface is 2.2 x 103Per mm2The above; at least one of the second surface and the third surface is a non-smooth surface; an anti-glare structure is disposed on the fourth surface.
2. The anti-glare light source module according to claim 1, wherein the non-smooth surface is a frosted surface or a surface provided with microstructures.
3. The module of claim 1, wherein the second surface is a non-smooth surface, and the non-smooth surface is a surface provided with microstructures.
4. The module of anti-glare light sources according to claim 2 or 3, wherein the microstructures are an array formed by an arrangement of micro-protrusions, and the projection profile of the micro-protrusions on the second surface or the third surface is defined by straight lines and/or arcs; the thickness of the microstructure is within the range of 0.01-0.1 mm.
5. The anti-glare light source module according to claim 4, wherein the micro-protrusions are arc-shaped or sharp-angled protrusions relative to the second surface or the third surface.
6. The anti-glare light source module according to claim 1,
the anti-dazzle piece is a prismatic crystal plate, and the anti-dazzle structure on the prismatic crystal plate is a prismatic crystal; or
The anti-dazzle piece is an anti-dazzle film, and the anti-dazzle structure on the anti-dazzle film is a microstructure.
7. The anti-glare light source module according to claim 1, wherein the dots are V-shaped grooves recessed into the first surface.
8. The anti-glare light source module according to claim 1, further comprising a light source and a frame assembly having a receiving space, wherein the light source, the light guide plate and the anti-glare member are disposed in the receiving space of the frame assembly, and light emitted from the light source enters the light guide plate from a side of the light guide plate perpendicular to the first surface and the second surface.
9. The anti-glare light source module according to claim 8, wherein the frame assembly comprises an aluminum bezel and a back plate that are fastened to each other, and the aluminum bezel and the back plate form the accommodating space.
10. The anti-glare light source module according to claim 9, further comprising an EPE pad and a reflective paper stacked between the back plate and the light guide plate;
the EPE pad is disposed adjacent to the back plate, and the reflective paper is disposed adjacent to the light guide plate.
11. An anti-glare lighting device, characterized in that the anti-glare light source module according to any one of claims 1 to 10 is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023277382.2U CN213814021U (en) | 2020-12-29 | 2020-12-29 | Anti-dazzle light source module and anti-dazzle lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023277382.2U CN213814021U (en) | 2020-12-29 | 2020-12-29 | Anti-dazzle light source module and anti-dazzle lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213814021U true CN213814021U (en) | 2021-07-27 |
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ID=76948861
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023277382.2U Active CN213814021U (en) | 2020-12-29 | 2020-12-29 | Anti-dazzle light source module and anti-dazzle lighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213814021U (en) |
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- 2020-12-29 CN CN202023277382.2U patent/CN213814021U/en active Active
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