CN212226951U - Anti-dazzle grid and lamp - Google Patents
Anti-dazzle grid and lamp Download PDFInfo
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- CN212226951U CN212226951U CN202020868723.4U CN202020868723U CN212226951U CN 212226951 U CN212226951 U CN 212226951U CN 202020868723 U CN202020868723 U CN 202020868723U CN 212226951 U CN212226951 U CN 212226951U
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- 230000004313 glare Effects 0.000 claims description 15
- 230000003313 weakening effect Effects 0.000 claims description 4
- 238000005286 illumination Methods 0.000 abstract description 15
- 230000007704 transition Effects 0.000 abstract description 4
- 238000002834 transmittance Methods 0.000 abstract description 3
- 238000007639 printing Methods 0.000 description 15
- 230000008859 change Effects 0.000 description 8
- 241001465382 Physalis alkekengi Species 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000004438 eyesight Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 206010013954 Dysphoria Diseases 0.000 description 1
- 208000003464 asthenopia Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 230000002427 irreversible effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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Abstract
The anti-glare grating comprises a grating part and a frame arranged around the grating part, the grating part is provided with a plurality of rows of light-transmitting grids for light emitted by the light source to transmit, and the plurality of rows of light-transmitting grids are arranged side by side; in the direction from the middle to the two sides, the area of the light-transmitting grids in the inner side row is smaller than that of the light-transmitting grids in the adjacent outer side row. The grid area of the light-transmitting grid at the position opposite to the strip-shaped light source is small, the transmittance of light is small, the area of the light-transmitting grid far away from the strip-shaped light source is large, the transmittance of light is higher, the light intensity of the light source projected to the space position is adjusted, so that the light intensity transmitted by the strip-shaped light source to each area in the illumination space is more equal in area, the transition of a light distribution curve passing through the grid part is smoother, the phenomenon that the light intensity changes too fast in the space is avoided, and the anti-glare effect is achieved.
Description
Technical Field
The application relates to the technical field of lighting lamps, in particular to an anti-dazzle grid and a lamp.
Background
Glare (Dazzle) refers to discomfort of eyes and temporary reduction of vision (incapacitating glare) caused by inappropriate brightness distribution in visual field, excessive brightness change in space or time, and excessive contrast, and psychological discomfort such as dysphoria, distraction, etc. (psychological glare), and irreversible damage of vision caused by long-term exposure to glare. With the development of lighting technology and the improvement of the requirement of consumers on the visual comfort of the lamp, glare is a factor which must be considered in the design of the lamp, and especially for scenes such as classrooms, offices, markets and the like which need people to stay for a long time, the prevention of glare is very important.
In the traditional scheme, some lamps and lanterns prevent light direct irradiation people's eyes through set up netted grid portion on the light propagation path at lighting bulb to reach the effect of anti-dazzle, but the effect of netted grid portion only lies in preventing people's eyes direct alignment bulb, and then plays the effect that prevents light direct irradiation people's eyes, and it can cause the spatial distribution of light inhomogeneous on the contrary to sheltering from of light, makes the luminance change of different positions too big in the illumination occasion.
SUMMERY OF THE UTILITY MODEL
The application aims to provide an anti-dazzle grid, and aims to solve the technical problems that light is unevenly distributed and anti-dazzle capability is poor in the space of a traditional lamp with a grid part.
The anti-glare grating is used for weakening the glare effect of a strip-shaped light source, and comprises a grating part and a frame arranged around the grating part, wherein the grating part is provided with a plurality of rows of light-transmitting grids for light emitted by the light source to penetrate through, and the light-transmitting grids are arranged side by side; in the direction from the middle to the two sides, the area of the light-transmitting grids in the inner side row is smaller than that of the light-transmitting grids in the adjacent outer side row.
In an embodiment of this application, the frame is rectangle, and is rectangular the frame includes mutually perpendicular's first limit and second limit, every row the printing opacity net all follows the direction at first limit place extends, follows each row that the middle on second limit sets up to both ends the area of printing opacity net increases in proper order.
In an embodiment of the application, the lengths of the rows of the light-transmitting grids arranged from the middle of the second edge to the two ends are not changed along the direction where the first edge is located, and the lengths of the rows of the light-transmitting grids arranged along the direction where the second edge is located are sequentially increased.
In an embodiment of this application, the light-transmitting grid is the hexagon, the hexagon have two with the parallel opposite side of second limit, along each row that the middle to both ends setting of second limit the light-transmitting grid with the parallel length of opposite side of second limit increases in proper order.
In an embodiment of the application, the lengths of the light-transmitting grids arranged from the middle of the second edge to the two ends of the second edge in the direction of the second edge are sequentially increased by 0.5-3 mm.
In an embodiment of the present application, the grid portion and the frame are integrally formed, and the grid portion is a plate-shaped structure with a uniform thickness.
In one embodiment of the present application, the anti-glare grid further includes a blue light prevention film layer coated on the surface of the grid portion.
The utility model also provides a lamp, include as above anti-dazzle grid, still include strip light source, it is strip the light source is just to one row of the innermost the printing opacity net sets up.
The utility model also provides an anti-dazzle grid for weaken the glare effect of punctiform light sources, the anti-dazzle grid includes a grid part and a frame arranged around the grid part, the grid part is provided with a plurality of layers of light-transmitting grids for transmitting light rays emitted by the light sources, and the light-transmitting grids of the plurality of layers are nested; the area of the light-transmitting grid of the inner layer is smaller than that of the light-transmitting grid of the adjacent outer layer.
The utility model also provides a lamp, include as above anti-dazzle grid, still include punctiform light source, punctiform the light source is just to inlayer the printing opacity net sets up.
The anti-dazzle grid has the following beneficial effects:
through setting up the form that the printing opacity net set up to outwards increasing in proper order from the one row of whole grid portion middlest, just little to the grid area of the position printing opacity net of strip light source, it is little to the transmissivity of light, the area of the printing opacity net of keeping away from strip light source is big, the transmissivity to light is higher, to the light intensity distribution condition of light source strip light source under not setting up the grid state, adjust the light intensity that the light source throws to the spatial position, it is regional more impartial to make the strip light source to the light intensity of each regional transmission in the illumination space, the grading curve transition behind grid portion is more level and smooth, the change excessively fast in the space of light intensity has been avoided, and then the effect of anti-dazzle has been played.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of an anti-glare grid provided in an embodiment of the present application;
FIG. 2 is an enlarged partial schematic view at A of FIG. 1;
fig. 3 is a schematic top view of an anti-glare grid provided in an embodiment of the present application.
Reference numerals referred to in the above figures are detailed below:
1-anti-glare grids; 101-a light transmissive grid; 11-a grid section; 12-a frame; 121-first side; 122-second side.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
In order to explain the technical solutions of the present application, the following detailed descriptions are made with reference to specific drawings and examples.
Referring to fig. 1 to 3, the embodiment provides an anti-glare grid 1 for reducing glare effect of a strip light source, the anti-glare grid 1 includes a grid portion 11 and a frame 12 disposed around the grid portion 11, the frame 12 is used for mounting the anti-glare grid 1 on a bracket, a housing, or a ceiling of a lamp, so as to perform fixing and supporting functions; of course, the antiglare grid 1 may also be fixed by the grid portion 11; the grid part 11 is provided with a plurality of rows of light-transmitting grids 101 for light emitted by the light source to penetrate through, the plurality of rows of light-transmitting grids 101 are arranged side by side, and the area of the light-transmitting grids 101 arranged on the inner side is smaller than that of the light-transmitting grids 101 arranged on the adjacent outer side along the direction from the middle to the two sides.
The anti-glare principle of the anti-glare grid 1 provided in this embodiment is that light emitted by the light source needs to penetrate through the light-transmitting grid 101 to enter the illumination space to achieve an illumination effect, and for the case that the strip-shaped light source illuminates a plane, in a direction perpendicular to the strip-shaped light source, an illuminance curve in the space is close to a lambertian curve, and the general trend of strong illuminance at a position facing the light source and weak illuminance at a position facing the light source is presented. In this embodiment, the area of the grid of the multiple rows of light-transmitting grids 101 arranged in parallel is set to be small in the middle and large at the two ends, so that the light illuminance at the position opposite to the light source can be weakened, and the light illuminance of the surrounding area is relatively enhanced, so that the spatial distribution of the light finally projected to the illumination space by the light source is more uniform, and further, the glare caused by the abrupt change of the light intensity is prevented.
The implementation of the anti-glare grid 1 provided by the application has at least the following beneficial effects:
through setting up printing opacity net 101 to the form that outwards increases in proper order from the one row of whole grid portion 11 middlest, just little to the position printing opacity net 101's of strip light source grid area, it is little to the transmissivity of light, the area of the printing opacity net 101 of keeping away from strip light source is big, the transmissivity to light is higher, to the light intensity distribution condition of strip light source under the light source state of not setting up the grid, adjust the light intensity that the light source throws to the spatial position, it is regional more impartial to make the light intensity of strip light source to each regional transmission in the illumination space, the grading curve transition behind grid portion 11 is more level and smooth, the change excessively fast in the space of light intensity has been avoided, and then the effect of anti-dazzle has been played.
Referring to fig. 1 to 3, in an embodiment of the present application, the frame 12 is rectangular, the rectangular frame 12 includes a first side 121 and a second side 122 perpendicular to each other, each row of the transparent grids 101 extends along a direction of the first side 121, and areas of the rows of the transparent grids 101 disposed along a middle of the second side 122 to two ends are sequentially increased.
Aiming at the situation that strip-shaped lamp tubes or lamp rods are commonly used as light sources in the existing lighting lamp, the anti-dazzle grid 1 is arranged to be in a rectangular plate shape, preferably, the long side of the anti-dazzle grid is used as a first side 121, the short side of the anti-dazzle grid is used as a second side 122, the size of each light-transmitting grid 101 arranged along the direction of the first side 121 is unchanged, the light-transmitting grids 101 arranged along the direction of the second side 122 are firstly reduced and then enlarged, and the light sources are arranged at the positions where the light-transmitting grids 101 are smallest, so that the structure can be adapted to the lamp using the strip-shaped lamp tubes or the lamp rods, and the light intensity of each position in the direction vertical to.
Referring to fig. 1 to 3, in an embodiment of the present application, the lengths of the rows of transparent grids 101 arranged along the middle of the second edge 122 toward the two ends are constant along the direction of the first edge 121, and the lengths of the rows of transparent grids increase along the direction of the second edge 122.
That is, the variation in the area of each light-transmitting mesh 101 formed by the anti-glare grid 1 is reflected in stretching in the direction of the second edge 122. For example, if the transparent grid 101 is a quadrilateral, two adjacent sides of the quadrilateral are respectively parallel to the first side 121 and the second side 122, the length of the side of each quadrilateral grid parallel to the first side 121 is not changed, and the length of the side parallel to the second side 122 is sequentially increased from the middle of the second side 122 to the two ends; or, for example, the light-transmitting mesh 101 is hexagonal, two opposite sides of the hexagon are parallel to the second side 122, and the lengths of the two sides of the hexagon parallel to the second side 122 are gradually increased from the middle of the second side 122 to the two ends. The unnecessary shielding of the anti-dazzle grid 1 to light can be reduced, and the utilization rate of the illumination of the light source is improved.
In one embodiment of the present application, the light-transmitting meshes 101 are square, triangular, hexagonal or circular, and when the light-transmitting meshes 101 are square, triangular or hexagonal, the boundaries of each light-transmitting mesh 101 form a plane densely paved; when the light-transmitting grids 101 are circular, a connecting line between centers of circles of the circular light-transmitting grids 101 is triangular or square. The light-transmitting grids 101 are arranged to be triangular, square or hexagonal densely paved on the plane, or the light-transmitting grids 101 are arranged to be circular and densely arranged on the plane, so that the overall transmittance of the anti-glare grid 1 to light rays can be improved, the waste of light energy caused by too much light rays shielded by the anti-glare grid 1 is avoided, and the overall light intensity in an illumination space is improved.
Referring to fig. 1 to 3, in an embodiment of the present application, the light-transmitting mesh 101 is a hexagon, the hexagon has two opposite sides parallel to the second side 122, and the lengths of the opposite sides parallel to the second side 122 of each row of light-transmitting meshes 101 disposed along the middle of the second side 122 toward the two ends are sequentially increased. The anti-dazzle grid 1 that this embodiment provided can be well adapted to the light source of rectangular shape, like bar LED lamp, perhaps LED lamp area etc. can show the homogeneity that improves the illuminance of the light source of rectangular shape.
Referring to fig. 1 to 3, in an embodiment of the present application, the lengths of the transparent grids 101 arranged along the middle of the second edge 122 toward the two ends are sequentially increased by 0.5 to 3mm along the direction of the second edge 122. That is, in the direction of the second edge 122, the length of the middle transparent grid 101 in the direction of the second edge 122 is the smallest, and the length increases gradually towards the two edges, the area of the transparent grid 101 attached to the first edge 121 is the largest, and the length difference between the adjacent transparent grids 101 is 0.5-3 mm.
For example, referring to fig. 1 to 3, as a specific scheme of this embodiment, 11 rows of hexagonal light-transmitting grids 101 are arranged along the direction of the second edge 122, and the lengths of the edges of the rows of light-transmitting grids 101 parallel to the second pass are respectively 18mm, 17mm, 16mm, 15mm, 14mm, 15mm, 16mm, 17mm, and 18mm, so that the anti-glare grid 1 provided in this way can improve the problem of uneven light distribution in the conventional grid space besides the beautiful appearance, and is very suitable for a strip-shaped light source.
Referring to fig. 1 to 3, in an embodiment of the present application, the grid portion 11 is integrally formed with the frame 12, and the grid portion 11 is a plate-shaped structure with a uniform thickness. The anti-dazzle grid 1 that this embodiment provided, under the prerequisite of effectively guaranteeing anti-dazzle effect, the maximum light efficiency and the lamps and lanterns illuminance degree of consistency that improve lamps and lanterns, simultaneously because the size change of printing opacity net 101, the quantity of net reduces relatively to the shaping degree of difficulty of mould has been reduced, the integrated into one piece of being convenient for.
In one embodiment of the present application, the anti-glare grid 1 further includes a blue light prevention film layer coated on the surface of the grid part 11. The surface of the anti-dazzle grid 1 is plated with the anti-blue light film layer, so that the illumination intensity of a short-wave and long-wave band of a light source can be reduced, the visual fatigue of a user is relieved, and the damage of eyes to glasses for a long time is relieved.
An embodiment of the present application provides a luminaire including the above anti-glare grid 1, and further including a strip-shaped light source disposed opposite to the light-transmitting mesh 101 in the innermost row.
In an actual use process, the first edge 121 of the lamp provided by this embodiment may be set perpendicular to the line of sight direction of the user. For example, when the light fixture provided by the embodiment is used for classroom illumination, the sight line direction of a student when the student looks at a blackboard is perpendicular to the first edge 121, and for a large stage-shaped classroom, the light fixture provided by the embodiment can be arranged around a platform; for a rectangular middle-size and small-size classroom, the first edge 121 of the lamp provided by the embodiment can be arranged in a direction parallel to the blackboard. Thus, the width direction of the anti-glare grating 1 is parallel to the sight line direction of students, and glare can be effectively prevented; the length direction of the anti-dazzle grid 1 is perpendicular to the sight direction of students, and the light emitting efficiency of the lamp can be improved.
The application also provides an anti-glare grid 1, which is used for weakening the glare effect of a point-like light source, wherein the anti-glare grid 1 comprises a grid part 11 and a frame 12 arranged around the grid part 11, and the frame 12 is used for installing the anti-glare grid 1 on a bracket, a shell or a ceiling of a lamp and plays roles of fixed connection and support; of course, the antiglare grid 1 may also be fixed by the grid portion 11; the grid part 11 is provided with a plurality of layers of light-transmitting grids 101 for light rays emitted by the light source to transmit, and the light-transmitting grids 101 in the layers are nested; the area of the light-transmitting mesh 101 of the inner layer is smaller than the area of the light-transmitting mesh 101 of the adjacent outer layer.
The anti-glare principle of the anti-glare grid 1 provided in this embodiment is that light emitted by the light source needs to penetrate through the light-transmitting grid 101 to enter the illumination space to achieve an illumination effect, and for the case that the point-shaped light source illuminates a plane, the illuminance curve in the space is close to a lambertian curve, and the general trend of strong illuminance at a position facing the light source and weak illuminance at a position facing the light source is presented. In this embodiment, the area of the grid of the multi-layer transparent grid 101 arranged in parallel is set to be large in the middle, so that the light illuminance at the position opposite to the light source can be weakened, and the light illuminance of the surrounding area is relatively enhanced, so that the spatial distribution of the light finally projected to the illumination space by the light source is more uniform, and further, the glare caused by the abrupt change of the light intensity is prevented.
The implementation of the anti-glare grid 1 provided by the application has at least the following beneficial effects:
through setting up printing opacity net 101 to the form that outwards increases in proper order from whole grid portion 11 middle one deck, just the position printing opacity net 101 of punctiform light source the net area is little, the transmissivity to light is little, the area of printing opacity net 101 of keeping away from punctiform light source is big, the transmissivity to light is higher, to the light intensity distribution condition of punctiform light source under the light source state of not setting up the grid state, adjust the light intensity that the light source throws to the spatial position, make punctiform light source more regional more impartial to the light intensity of each regional transmission in the illumination space, the grading curve transition behind grid portion 11 is more level and smooth, the change excessively fast in the space of light intensity has been avoided, and then the effect of anti-dazzle has been played.
The utility model discloses a still provide a lamps and lanterns, including above anti-dazzle grid 1, still include the punctiform light source, the light source of punctiform is just setting up to the printing opacity net 101 of inlayer.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. An anti-glare grid is characterized by being used for weakening the glare effect of a strip-shaped light source, and comprising a grid part and a frame surrounding the grid part, wherein the grid part is provided with a plurality of rows of light-transmitting grids for light rays emitted by the light source to penetrate through, and the light-transmitting grids are arranged side by side; in the direction from the middle to the two sides, the area of the light-transmitting grids in the inner side row is smaller than that of the light-transmitting grids in the adjacent outer side row.
2. The anti-glare grid according to claim 1, wherein the frame has a rectangular shape, the rectangular frame comprises a first side and a second side perpendicular to each other, each row of the light-transmissive cells extends in a direction of the first side, and the areas of the rows of the light-transmissive cells arranged along the middle of the second side toward both ends of the second side are sequentially increased.
3. The anti-glare grid according to claim 2, wherein the light-transmissive cells of each row arranged in a direction from the middle to both ends of the second edge have a constant length in a direction along the first edge, and have lengths in a direction along the second edge that increase sequentially.
4. The anti-glare grid according to claim 2, wherein the light-transmissive cells have a hexagonal shape having two opposite sides parallel to the second side, and the opposite sides parallel to the second side of each of the rows of the light-transmissive cells arranged along the middle to both ends of the second side have lengths that increase sequentially.
5. The anti-glare grid according to claim 3 or 4, wherein the lengths of the light-transmitting grids arranged in the direction from the middle to both ends of the second edge are sequentially increased by 0.5 to 3 mm.
6. The anti-glare grid according to claim 1, wherein the grid part is integrally formed with the bezel, and the grid part has a plate-shaped structure with a uniform thickness.
7. The anti-glare grid according to claim 1, further comprising a blue light-preventing film layer coated on the surface of the grid portion.
8. A luminaire comprising the antiglare grid of any one of claims 1 to 7, further comprising a strip light source, the strip light source being disposed directly opposite the light-transmissive grid of the innermost row.
9. An anti-glare grid is characterized by being used for weakening the glare effect of a point-like light source, and comprising a grid part and a frame arranged around the grid part, wherein the grid part is provided with a plurality of layers of light-transmitting grids for light rays emitted by the light source to penetrate through, and the light-transmitting grids of the plurality of layers are nested; the area of the light-transmitting grid of the inner layer is smaller than that of the light-transmitting grid of the adjacent outer layer.
10. A luminaire comprising the antiglare grid of claim 9, further comprising point-like light sources, the point-like light sources disposed directly opposite the light-transmissive grid of the innermost layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020868723.4U CN212226951U (en) | 2020-05-21 | 2020-05-21 | Anti-dazzle grid and lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020868723.4U CN212226951U (en) | 2020-05-21 | 2020-05-21 | Anti-dazzle grid and lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212226951U true CN212226951U (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020868723.4U Expired - Fee Related CN212226951U (en) | 2020-05-21 | 2020-05-21 | Anti-dazzle grid and lamp |
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| Country | Link |
|---|---|
| CN (1) | CN212226951U (en) |
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2020
- 2020-05-21 CN CN202020868723.4U patent/CN212226951U/en not_active Expired - Fee Related
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Granted publication date: 20201225 |