CN204154918U - A kind of circular blast microstructure light diffusing sheet - Google Patents
A kind of circular blast microstructure light diffusing sheet Download PDFInfo
- Publication number
- CN204154918U CN204154918U CN201420464522.2U CN201420464522U CN204154918U CN 204154918 U CN204154918 U CN 204154918U CN 201420464522 U CN201420464522 U CN 201420464522U CN 204154918 U CN204154918 U CN 204154918U
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- CN
- China
- Prior art keywords
- light diffusing
- diffusing sheet
- convex lens
- gradual change
- circular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of circular blast microstructure light diffusing sheet, described light diffusing sheet is circular, and the one side of described light diffusing sheet is plane, and another side is provided with convex lens or concave mirror arrangements.The utility model is without the need to adding light diffusing agent, and light diffusion effect is good, and light efficiency is high, and cost is low.
Description
Technical field
The utility model relates to a kind of light diffusing sheet, is specifically related to a kind of circular blast microstructure light diffusing sheet.
Background technology
At present, along with socioeconomic development, increasing light fixture, advertising lamp box, display screen adopt the point/line source of LED or other high brightness, usually adopt light diffusing sheet light source to be diffused as the area source of brightness uniformity, the effect weighing light diffusion is mist degree and transmittance, and both are more high better.Traditional light diffusing sheet is in clear sheet, add astigmatism masterbatch, light diffusion effect is reached by the scattering of astigmatism agent to light, owing to there is the occlusion effect of astigmatism agent to light, the astigmatism agent that the light diffusing sheet that mist degree is higher adds its transmittances more are lower on the contrary, printed reflection horizon in the one side of light diffusing sheet again to improve brightness simultaneously, and printing not only adds cost, also have impact on the reuse of leftover pieces.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of circular blast microstructure light diffusing sheet, and without the need to adding light diffusing agent, light diffusion effect is good, and light efficiency is high, and cost is low.
The technical scheme that the utility model technical solution problem adopts is: a kind of circular blast microstructure light diffusing sheet, is characterized in that: described light diffusing sheet is for circular, and the one side of described light diffusing sheet is plane, and another side is provided with convex lens or concave mirror arrangements.
Preferred as one, described convex lens or concave mirror arrangements are gradual change convex lens concentric circles or gradual change concavees lens Concentric circle array.
Preferred as one, the height of projection of described gradual change convex lens Concentric circle array is 70 ~ 160 μm; The depth of groove of described gradual change concavees lens Concentric circle array is 70 ~ 160 μm.
The size of the arrangement of gradual change convex lens concentric circles or gradual change concavees lens Concentric circle array in the utility model, convex lens or concavees lens and convex lens or concavees lens spherical radius can regulate as required, to obtain the optimum efficiency of various light diffusion, the less smooth diffusion effect of prism is better, to obtain the optimum efficiency of various light diffusion, thinner high efficiency, low cost light diffusing sheet or sheet can be obtained simultaneously.
When the utility model uses, be provided with the one side of one side as light incidence of convex lens or concave mirror arrangements, the one side of plane is then the one side of light diffusion.During as being used as LED lamp panel, will be provided with the one side of one side as LED light source incidence of convex lens or concave mirror arrangements, the one side of plane is then the one side of light diffusion.
The beneficial effects of the utility model are: light diffusing sheet one side is provided with gradual change convex lens concentric circles or gradual change concavees lens Concentric circle array, by the catadioptric of convex lens or concavees lens, point or line source are diffused as the area source of brightness uniformity, light diffusion effect is good, light efficiency is high, under same light source, its brightness is much higher than common light diffusing sheet, and cost is low.Owing to not adding light diffusing agent, leftover pieces can direct reuse.
Accompanying drawing explanation
Fig. 1 is the schematic front view of the utility model embodiment 1.
Fig. 2 is that the A of Fig. 1 in the utility model embodiment 1 is to schematic diagram.
Fig. 3 is the schematic front view of the utility model embodiment 2.
Fig. 4 is that the A of Fig. 3 in the utility model embodiment 2 is to schematic diagram.
Below in conjunction with accompanying drawing, the utility model is described further.
Embodiment
Embodiment 1: as shown in accompanying drawing 1, Fig. 2, a kind of circular blast microstructure light diffusing sheet, its shape is circular, the one side of described light diffusing sheet is plane, another side is provided with gradual change convex lens Concentric circle array, the height of projection of described gradual change convex lens Concentric circle array is 70 ~ 160 μm, and namely, maximum height of projection is 160 μm, and the minimum height of projection in both sides is 70 μm.
Embodiment 2: as shown in accompanying drawing 3, Fig. 4, another kind of circular blast microstructure light diffusing sheet, its shape is circular, the one side of described light diffusing sheet is plane, another side is provided with gradual change concavees lens Concentric circle array, the recessed degree of depth of described gradual change concavees lens Concentric circle array is 70 ~ 160 μm, and namely, maximum depth of groove is 160 μm, and the minimum depth of groove in both sides is 70 μm.
Claims (1)
1. a circular blast microstructure light diffusing sheet, it is characterized in that: described diffuser plate is for circular, the one side of described diffuser plate is plane, another side is provided with convex lens or concave mirror arrangements, described convex lens or concave mirror arrangements are gradual change convex lens concentric circles or gradual change concavees lens Concentric circle array, and the height of projection of described gradual change convex lens Concentric circle array is 70 ~ 160 μm; The depth of groove of described gradual change concavees lens Concentric circle array is 70 ~ 160 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420464522.2U CN204154918U (en) | 2014-08-18 | 2014-08-18 | A kind of circular blast microstructure light diffusing sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420464522.2U CN204154918U (en) | 2014-08-18 | 2014-08-18 | A kind of circular blast microstructure light diffusing sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204154918U true CN204154918U (en) | 2015-02-11 |
Family
ID=52513019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420464522.2U Expired - Fee Related CN204154918U (en) | 2014-08-18 | 2014-08-18 | A kind of circular blast microstructure light diffusing sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204154918U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175868A (en) * | 2020-01-22 | 2020-05-19 | 京东方科技集团股份有限公司 | Diffusion plate, liquid crystal display screen and spliced wall display screen |
| CN111929978A (en) * | 2020-10-15 | 2020-11-13 | 成都菲斯特科技有限公司 | Projection screen and projection system |
-
2014
- 2014-08-18 CN CN201420464522.2U patent/CN204154918U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111175868A (en) * | 2020-01-22 | 2020-05-19 | 京东方科技集团股份有限公司 | Diffusion plate, liquid crystal display screen and spliced wall display screen |
| CN111175868B (en) * | 2020-01-22 | 2022-09-06 | 京东方科技集团股份有限公司 | Diffusion plate, liquid crystal display screen and spliced wall display screen |
| CN111929978A (en) * | 2020-10-15 | 2020-11-13 | 成都菲斯特科技有限公司 | Projection screen and projection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20180818 |