CN215910673U - Anti-dazzle optical plate with pyramid part - Google Patents
Anti-dazzle optical plate with pyramid part Download PDFInfo
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- CN215910673U CN215910673U CN202122013466.3U CN202122013466U CN215910673U CN 215910673 U CN215910673 U CN 215910673U CN 202122013466 U CN202122013466 U CN 202122013466U CN 215910673 U CN215910673 U CN 215910673U
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Abstract
The utility model discloses an anti-dazzle optical plate with a pyramid part, which comprises a plate body, wherein the surface of the plate body is provided with a plurality of concave or convex pyramid parts, the pyramid part consists of regular even number edge edges and even number pyramid surfaces, and an included angle A between the two opposite pyramid surfaces is less than 60 degrees. In the process of processing the plate body, a plurality of pyramid parts are processed and formed on the surface of the plate body, each pyramid part is a regular polygonal pyramid and specifically comprises regular even number edge edges and even number pyramid surfaces, the pyramid part is provided with at least two groups of opposite pyramid surfaces due to the structure, an included angle A between every two opposite pyramid surfaces is set to be smaller than 60 degrees, and the optimal included angle is set, so that the optical plate can achieve a glare value UGR <16, and further meet the anti-glare requirement.
Description
Technical Field
The present invention relates to an antiglare sheet, and more particularly, to an antiglare optical sheet having a pyramid part.
Background
With the improvement of living standard of people, the requirement of people on the comfort level of illumination is higher and higher, and researches show that unreasonable and uncomfortable illumination and glare can not only cause more than 2000 million people to have myopia, but also high glare can stimulate senses, so that people feel irritated and sleep, and the physical health of people is seriously affected. In this regard, many light fixtures are configured with anti-glare panels.
At present, the common structures of panel lamps in the market are divided into two types: 1. the side-emitting 600X600M panel light is composed of a light guide plate, a diffusion plate and an anti-glare plate film, and the 2 direct-type light-emitting 600X600M panel light is composed of a diffusion plate and an anti-glare plate film. Through market research and published glare data about panel lamps, the grille lamp with the traditional structure can meet the general requirement of UGR <19, but has high cost, heavy weight and unsuitability for the current requirement of electroplating polluted environment.
Secondly, extruded sheet materials on the market comprise a four-corner, hexagonal honeycomb type, and although the weight is easy to install, no product with a glare value lower than UGR <16 is found in the test published data of the CIE detection standard, and the UGR <13 comfort requirement is not met. Currently, CIE (international commission on illumination) formally adopts UGR values as indicators for evaluating discomfort glare in lighting environments. UGR evaluates the discomfort glare degree value of a certain set of lamps, which is calculated by various parameters related to glare generation and is used for representing the discomfort glare degree value of the whole lighting space. The UGR is used for evaluating the discomfort glare degree value of a certain set of lamps, and is a table (especially the standard lumen value of about 36W of the whole lamp is 3600lm and above, and the transverse UGR at the position of 4H8H shows real data) obtained by calculating various parameters related to glare so as to obtain the discomfort glare optical path length value of the whole lighting space. Fig. 9 is a schematic diagram of a position relationship between a user and a lamp, and the following table corresponds to the schematic diagram:
UGR limits for various indoor locations
UGR value and uncomfortable glare degree corresponding relation
UGR value calculation model
In the formula: l isb-background luminance (cd/m)2)；
L-luminance of each luminaire in the direction of the observer (cd/m)2)；
ω — the solid angle (sr) each luminaire's light emitting portion forms to the observer's eye;
p — position index for each individual luminaire.
According to the above tables, in practical applications, the higher the brightness and the larger the beam angle are, the higher the glare value is, for example, the greater the 65 degree illumination in the lamp can cause the computer screen to reflect glare.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing an anti-dazzle optical plate with a pyramid part, which can realize a dazzle value UGR less than 16 and further meet the anti-dazzle requirement, aiming at the defects of the prior art.
In order to solve the technical problems, the utility model adopts the following technical scheme.
The anti-dazzle optical plate with the pyramid parts comprises a plate body, wherein the surface of the plate body is provided with a plurality of pyramid parts, each pyramid part consists of a regular even number edge and an even number of pyramid surfaces, and an included angle A between the two opposite pyramid surfaces is smaller than 60 degrees.
Preferably, the side wall of the pyramid part is in a regular quadrangular pyramid shape, and the number of the edges of the regular even number of edges and the number of the faces of the pyramid surface are four.
Preferably, the side wall of the pyramid part is in a regular hexagonal pyramid shape, and the number of edges of the regular even number edge and the number of faces of the pyramid surface are both six.
Preferably, the plate body is manufactured and molded in an injection molding, stamping or roller extrusion mode.
Preferably, the pyramid part is an inner pyramid part recessed toward the inside of the plate material body.
Preferably, the pyramid part is an outer pyramid part protruding to the outside of the plate material body.
The utility model discloses an anti-dazzle optical plate with pyramid parts, wherein a plurality of pyramid parts are formed on the surface of the plate body in the process of processing the plate body, the pyramid part is a regular polygonal pyramid and specifically comprises a regular even number edge and an even number of pyramid surfaces, the structure enables the pyramid part to be provided with at least two groups of opposite pyramid surfaces, an included angle A between every two opposite pyramid surfaces is set to be less than 60 degrees, and the optimal included angle is set, so that the anti-dazzle optical plate can realize a dazzle value UGR <16, and further meet the anti-dazzle requirement.
Drawings
FIG. 1 is a first perspective view of an optical sheet according to a first embodiment of the present invention;
FIG. 2 is a second perspective view of the optical plate according to the first embodiment of the present invention;
FIG. 3 is a front view of an optical sheet according to a first embodiment of the present invention;
FIG. 4 is a cross-sectional view of FIG. 3;
FIG. 5 is a first perspective view of an optical sheet according to a second embodiment of the present invention;
FIG. 6 is a second perspective view of an optical sheet according to a second embodiment of the present invention;
FIG. 7 is a front view of an optical sheet according to a second embodiment of the present invention;
FIG. 8 is a cross-sectional view of FIG. 7;
FIG. 9 is a schematic diagram of a position relationship between a user and a lamp;
FIG. 10 is a diagram of panel light inspection data commonly used in the market today;
FIG. 11 is a light distribution plot corresponding to the data shown in FIG. 10;
FIG. 12 is a graph of panel light inspection data using the optical sheet of the present invention;
fig. 13 is a light distribution graph corresponding to the data shown in fig. 12.
Detailed Description
The utility model is described in more detail below with reference to the figures and examples.
Example one
The embodiment provides an anti-glare optical plate with pyramid parts, which is shown in fig. 1 to 4, and comprises a plate body 1, wherein a plurality of pyramid parts 2 are arranged on the surface of the plate body 1, the pyramid parts 2 are composed of regular even number edge 3 and even number pyramid surfaces 4, and an included angle a between two opposite pyramid surfaces 4 is less than 60 °.
In the structure, in the process of processing the plate body 1, a plurality of pyramid parts 2 are processed and formed on the surface of the plate body, each pyramid part 2 is a regular polygonal pyramid and specifically comprises regular even number edge 3 and even number pyramid surfaces 4, the structure enables the pyramid part 2 to be provided with at least two groups of opposite pyramid surfaces 4, an included angle A between every two opposite pyramid surfaces 4 is set to be smaller than 60 degrees, and the optimal included angle is set, so that the optical plate can achieve a glare value UGR <16, and further meet the anti-glare requirement.
In this embodiment, the side wall of the pyramid part 2 is in the shape of a regular quadrangular pyramid, and the number of the regular even-numbered sides 3 and the number of the faces of the pyramid part 4 are four.
Example two
Referring to fig. 5 to 8, in the present embodiment, the side wall of the pyramid part 2 has a regular hexagonal pyramid shape, and the number of sides of the regular even-numbered edge 3 and the number of faces of the pyramid part 4 are six. It should be noted that fig. 5 to 8 are only schematic structural diagrams, the angle a in the drawings is not limited to the measurement angle in the drawings, and the specific angle a should be less than 60 °.
In the first and second embodiments, the pyramid part 2 is an inner pyramid part recessed inward of the plate material main body 1. However, these are only two preferred implementations of the present invention, and according to practical needs, the external pyramid structure may be configured to be convex, for example: the pyramid part 2 is an outer pyramid part protruding outward of the plate material body 1.
Further, with respect to the lower limit value of the angle, the angle a between the two opposing pyramidal faces 4 is greater than or equal to 5 °.
In practical applications, the plate body 1 may be processed in various manners, for example, the plate body 1 is manufactured and formed by injection molding, stamping or roller extrusion.
The following compares the existing panel light inspection data with the panel light inspection data having the optical sheet of the present invention.
As shown in fig. 10 and 11, the test data of the conventional panel lamp is as follows:
the included angle of the anti-dazzle plate is less than 90 degrees;
side light emitting panel lamps 600x600 mm;
panel light structure: light guide plate + diffusion plate +;
an anti-dazzle transparent plate (four corners hexagonal rhombus on the market, the beam angle is more 70-125 degrees);
panel light flux: 3341 lm;
the maximum value of the whole UGR is 18.9;
UGR minimum > 16;
light efficiency: 110 lm/W.
Referring to fig. 12 and 13, the panel light inspection data with the optical sheet of the present invention is as follows:
the included angle of the anti-dazzle plate is less than 60 degrees;
side light emitting panel lamps 600x600 mm;
panel light structure: light guide plate + (PET diffusion film + transparent antiglare sheet);
panel light flux: 4094 lm;
the maximum value of the whole UGR is 13.8 (after adding a correction value);
UGR minimum 10.4;
light efficiency: 102 lm/W.
In contrast, UGR minimum for existing panel lights > 16; after the optical sheet material is adopted, the minimum value of UGR is 10.4 through testing, and the target requirement that the glare value UGR is less than 16 is obviously met. Through the tests and the comparison, and by combining a large number of experiments and calculations, the fact that the 50% beam angle of the anti-dazzle plate is smaller than 60 degrees is a critical value of a dazzle value UGR <16, therefore, the 50% beam angle of the anti-dazzle plate is smaller than 60 degrees, and therefore the optical structure plate with the four-corner type concave or hexagonal honeycomb concave structure is provided, the UGR <16 degrees, and the application requirements of anti-dazzle light are met.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents or improvements made within the technical scope of the present invention should be included in the scope of the present invention.
Claims (6)
1. The anti-dazzle optical plate with the pyramid parts is characterized by comprising a plate body (1), wherein the surface of the plate body (1) is provided with a plurality of pyramid parts (2), each pyramid part (2) consists of a regular even number edge (3) and an even number of pyramid surfaces (4), and an included angle A between the two opposite pyramid surfaces (4) is smaller than 60 degrees.
2. The antiglare optical sheet having a pyramid part according to claim 1, wherein the side wall of the pyramid part (2) has a regular quadrangular pyramid shape, and the number of sides of the regular even-numbered edge (3) and the number of faces of the pyramid surface (4) are four.
3. The antiglare optical sheet having a pyramid part according to claim 1, wherein the side wall of the pyramid part (2) has a regular hexagonal pyramid shape, and the number of sides of the regular even-numbered edge (3) and the number of faces of the pyramid surface (4) are six.
4. The antiglare optical sheet having a pyramid part according to claim 1, wherein the sheet body (1) is molded by injection molding, punching or roller extrusion.
5. The antiglare optical sheet having a pyramid part according to claim 1, wherein the pyramid part (2) is an inner pyramid part which is recessed to the inside of the sheet body (1).
6. The antiglare optical sheet having a pyramid part according to claim 1, wherein the pyramid part (2) is an external pyramid part protruding to the outside of the sheet body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122013466.3U CN215910673U (en) | 2021-08-25 | 2021-08-25 | Anti-dazzle optical plate with pyramid part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122013466.3U CN215910673U (en) | 2021-08-25 | 2021-08-25 | Anti-dazzle optical plate with pyramid part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215910673U true CN215910673U (en) | 2022-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122013466.3U Active CN215910673U (en) | 2021-08-25 | 2021-08-25 | Anti-dazzle optical plate with pyramid part |
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| CN (1) | CN215910673U (en) |
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2021
- 2021-08-25 CN CN202122013466.3U patent/CN215910673U/en active Active
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Effective date of registration: 20230914 Address after: 518000 A403, Building 5, Central Road, No. 12, Shaqi Community Central Road, Xinqiao Street, Bao'an District, Shenzhen, Guangdong Patentee after: Ge Xiaoling Address before: 518000 factory building 34, Wanfeng Dayangtian Industrial Zone, Shajing street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN LIKEDA OPTICAL ELECTRICITY Co.,Ltd. |