CN109445242A - The anti-light projection screen of Fresnel for ultrashort out-of-focus projection's system - Google Patents
The anti-light projection screen of Fresnel for ultrashort out-of-focus projection's system Download PDFInfo
- Publication number
- CN109445242A CN109445242A CN201811531782.6A CN201811531782A CN109445242A CN 109445242 A CN109445242 A CN 109445242A CN 201811531782 A CN201811531782 A CN 201811531782A CN 109445242 A CN109445242 A CN 109445242A
- Authority
- CN
- China
- Prior art keywords
- layer
- fresnel
- ultrashort out
- projection screen
- light
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
- G03B21/602—Lenticular screens
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The present invention relates to short focus projection arts, a kind of anti-light projection screen of Fresnel for ultrashort out-of-focus projection's system is provided, including anti-scratch layer, upper coloring layer, upper prism layer, lower coloring layer, lower prism layer, Fresnel Lenses layer, reflecting layer and the light-absorption layer set gradually.The striated structure towards anti-scratch layer is equipped in the upper prism layer and lower prism layer, and the trend of the striated structure of the two is vertical setting.Whereby, the present invention replaces traditional scattering layer by the way that upper prism layer and lower prism layer is arranged, it can be significantly more efficient towards surrounding diverging by incident light, degree of divergence is higher, and viewing visual angle is bigger, and screen speckle, the problems such as narrow viewing angle and central area are dazzling are effectively solved.
Description
Technical field
The present invention relates to short focus projection art more particularly to a kind of Fresnel for ultrashort out-of-focus projection's system are anti-light
Projection screen.
Background technique
Currently, ultrashort out-of-focus projection's curtain has been used as the screen of home theater.As shown in Figure 1, the projection screen generally include it is anti-zoned
Hurt layer 1, coloring layer 2, diffusion layer 8, Fresnel Lenses layer 5, reflecting layer 6 and light-absorption layer 7.Screen table can be improved in anti-scratch layer 1
Surface hardness stops the scuffing of certain dynamics to damage.Coloring layer 2 is usually grey, and light/dark balance etc. can greatly improve Projection Display
Contrast.Diffusion layer 8 plays the scattering process to incident light.
Resin material of the existing diffusion layer by transmitance greater than 85% uniformly adds diffusion particle (nanoscale to micron order
Between) be made, due to its scattering limitation to laser, so that the light being reflected back is interfered with incident light, thus on screen
There is speckle, reduces the clarity of display image.Limited scattering has also narrowed effective visible angle, usually -40 °~
+40°.Therefore, wide-angle region is not seen, and viewing areas brightness is excessively high causes dazzling problem.
So speckle and narrow viewing angle problem not only reduce viewing experience, also limits it and wanted in auditorium, advertising display etc.
Ask the utilization in the field at a wide range of, big visual angle.
In summary, the existing technology has inconveniences and defects in actual use, so it is necessary to be improved.
Summary of the invention
For above-mentioned defect, the purpose of the present invention is to provide a kind of Fresnel for ultrashort out-of-focus projection's system is anti-light
Projection screen replaces traditional scattering layer by the upper prism layer of setting and lower prism layer, can be significantly more efficient by incident light
It is dissipated towards surrounding, degree of divergence is higher, and viewing visual angle is bigger, and screen speckle, the problems such as narrow viewing angle and central area are dazzling obtain
Effectively solve.
To achieve the goals above, the present invention provides a kind of anti-light projection screen of Fresnel for ultrashort out-of-focus projection's system
Curtain, including the anti-scratch layer, upper coloring layer, upper prism layer, lower coloring layer, lower prism layer, Fresnel Lenses layer, anti-set gradually
Penetrate layer and light-absorption layer.
Fresnel anti-light projection screen according to the present invention for ultrashort out-of-focus projection's system, the upper prism layer and lower rib
The striated structure towards anti-scratch layer is equipped in mirror layer, and the trend of the striated structure of the two is vertical setting.
Fresnel anti-light projection screen according to the present invention for ultrashort out-of-focus projection's system, the striated structure is continuous
Triangle column structure.
Fresnel anti-light projection screen according to the present invention for ultrashort out-of-focus projection's system, the apex angle of the striated structure
Angular range are as follows: 30~120 °.
Fresnel anti-light projection screen according to the present invention for ultrashort out-of-focus projection's system, the refraction of the upper coloring layer
Rate is greater than the refractive index of upper prism layer；The refractive index of lower coloring layer is greater than the refractive index of lower prism layer.
Fresnel anti-light projection screen according to the present invention for ultrashort out-of-focus projection's system, the anti-scratch layer are engineering
Plastics.
Fresnel anti-light projection screen according to the present invention for ultrashort out-of-focus projection's system, the engineering plastics be PET,
PC, PMMA or PS.
Fresnel anti-light projection screen according to the present invention for ultrashort out-of-focus projection's system is covered on the reflecting layer
Metal material.
Fresnel anti-light projection screen according to the present invention for ultrashort out-of-focus projection's system, the metal material be silver,
Aluminium or nickel.
What the present invention passed through is designed to provide a kind of anti-light projection screen of Fresnel for ultrashort out-of-focus projection's system, leads to
The upper prism layer of setting and lower prism layer are crossed, traditional scattering layer is replaced, can be dissipated towards surrounding by incident light is significantly more efficient,
Degree of divergence is higher, and viewing visual angle is bigger, and screen speckle, the problems such as narrow viewing angle and central area are dazzling are effectively solved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the prior art；
Fig. 2 is structural schematic diagram of the invention；
Fig. 3 is the structural schematic diagram of upper prism layer of the invention；
Fig. 4 is the structural schematic diagram of lower prism layer of the invention；
1- anti-scratch layer in the figure, 2- coloring layer, the upper coloring layer of 21-, coloring layer under 22-；The upper prism layer of 3-, 31- striped
Structure；Prism layer under 4-, 5- Fresnel Lenses layer, the reflecting layer 6-, 7- light-absorption layer, 8- diffusion layer.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Referring to fig. 2, the present invention provides a kind of anti-light projection screens of Fresnel for ultrashort out-of-focus projection's system, including according to
It is the anti-scratch layer 1 of secondary setting, upper coloring layer 21, upper prism layer 3, lower coloring layer 22, lower prism layer 4, Fresnel Lenses layer 5, anti-
Penetrate layer 6 and light-absorption layer 7；Anti-scratch layer 1 is located at outermost layer towards spectators, and rest part is successively arranged inward.
Referring to Fig. 3 and Fig. 4, the striated structure 31 towards anti-scratch layer 1 is equipped in upper prism layer 3 and lower prism layer 4, and
The trend of the striated structure 31 of the two is vertical setting；
Preferably, the striated structure 31 is continuous triangle column structure；
Incident light successively dissipates after upper prism layer 3 and lower prism layer 4 around, later using Fresnel Lenses layer
5 and reflecting layer 6 effect after, dispersion angle further increase avoid greatly with reflection light formed interfere, efficiently solve
Speckle issue.Simultaneously because the scattering of wide-angle, effective viewing visual angle also expands therewith, and the brightness of central area also has
It is reduced, is solved the problems, such as dazzling.Preferably, the degree that speckle improves can pass through the angle of the apex angle of change striated structure 31
Degree is to realize.Common, angle is smaller, and speckle improvement is more obvious.The angular range of the apex angle of the preferred striated structure 31 of the present invention
It is 30~120 °.
To ensure dispersion effect, preferably, the refractive index of upper coloring layer 21 is greater than the refractive index of upper prism layer 3；Lower coloring
The refractive index of layer 22 is greater than the refractive index of lower prism layer 4.
Anti-scratch layer 1 is engineering plastics, such as PET, PC, PMMA or PS.
It is covered with metal material on reflecting layer 6, such as silver, aluminium or nickel.
In conclusion the present invention replaces traditional scattering layer by the upper prism layer of setting and lower prism layer, it can be by incidence
Light is significantly more efficient to be dissipated towards surrounding, and degree of divergence is higher, and viewing visual angle is bigger, screen speckle, narrow viewing angle and central area
The problems such as dazzling, is effectively solved.
Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, ripe
It knows those skilled in the art and makes various corresponding changes and modifications, but these corresponding changes and change in accordance with the present invention
Shape all should fall within the scope of protection of the appended claims of the present invention.
Claims (9)
1. a kind of anti-light projection screen of Fresnel for ultrashort out-of-focus projection's system, which is characterized in that anti-including what is set gradually
Scoring layer, upper coloring layer, upper prism layer, lower coloring layer, lower prism layer, Fresnel Lenses layer, reflecting layer and light-absorption layer.
2. the Fresnel anti-light projection screen according to claim 1 for ultrashort out-of-focus projection's system, which is characterized in that institute
The striated structure being equipped in prism layer and lower prism layer towards anti-scratch layer is stated, and the trend of the striated structure of the two is in vertical
Straight setting.
3. the Fresnel anti-light projection screen according to claim 2 for ultrashort out-of-focus projection's system, which is characterized in that institute
Stating striated structure is continuous triangle column structure.
4. the Fresnel anti-light projection screen according to claim 3 for ultrashort out-of-focus projection's system, which is characterized in that institute
State the angular range of the apex angle of striated structure are as follows: 30~120 °.
5. the anti-light projection screen of Fresnel of ultrashort out-of-focus projection's system is used for described in any one according to claim 1~4,
It is characterized in that, the refractive index of the upper coloring layer is greater than the refractive index of upper prism layer；The refractive index of lower coloring layer is greater than lower prism
The refractive index of layer.
6. the Fresnel anti-light projection screen according to claim 5 for ultrashort out-of-focus projection's system, which is characterized in that institute
Stating anti-scratch layer is engineering plastics.
7. the Fresnel anti-light projection screen according to claim 6 for ultrashort out-of-focus projection's system, which is characterized in that institute
Stating engineering plastics is PET, PC, PMMA or PS.
8. the Fresnel anti-light projection screen according to claim 5 for ultrashort out-of-focus projection's system, which is characterized in that institute
It states and is covered with metal material on reflecting layer.
9. the Fresnel anti-light projection screen according to claim 8 for ultrashort out-of-focus projection's system, which is characterized in that institute
Metal material is stated as silver, aluminium or nickel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811531782.6A CN109445242A (en) | 2018-12-14 | 2018-12-14 | The anti-light projection screen of Fresnel for ultrashort out-of-focus projection's system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811531782.6A CN109445242A (en) | 2018-12-14 | 2018-12-14 | The anti-light projection screen of Fresnel for ultrashort out-of-focus projection's system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109445242A true CN109445242A (en) | 2019-03-08 |
Family
ID=65558305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811531782.6A Withdrawn CN109445242A (en) | 2018-12-14 | 2018-12-14 | The anti-light projection screen of Fresnel for ultrashort out-of-focus projection's system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109445242A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113009769A (en) * | 2019-12-20 | 2021-06-22 | 青岛海信激光显示股份有限公司 | Projection screen and projection equipment |
| CN113009768A (en) * | 2019-12-20 | 2021-06-22 | 青岛海信激光显示股份有限公司 | Projection screen and projection equipment |
| CN114660885A (en) * | 2020-12-22 | 2022-06-24 | 宁波激智科技股份有限公司 | Speckle-dispelling laser television screen and preparation method thereof |
| CN114660882A (en) * | 2020-12-22 | 2022-06-24 | 宁波激智科技股份有限公司 | Speckle-dispelling laser television screen and preparation method thereof |
-
2018
- 2018-12-14 CN CN201811531782.6A patent/CN109445242A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113009769A (en) * | 2019-12-20 | 2021-06-22 | 青岛海信激光显示股份有限公司 | Projection screen and projection equipment |
| CN113009768A (en) * | 2019-12-20 | 2021-06-22 | 青岛海信激光显示股份有限公司 | Projection screen and projection equipment |
| CN113009769B (en) * | 2019-12-20 | 2023-04-25 | 青岛海信激光显示股份有限公司 | Projection screen and projection equipment |
| CN114660885A (en) * | 2020-12-22 | 2022-06-24 | 宁波激智科技股份有限公司 | Speckle-dispelling laser television screen and preparation method thereof |
| CN114660882A (en) * | 2020-12-22 | 2022-06-24 | 宁波激智科技股份有限公司 | Speckle-dispelling laser television screen and preparation method thereof |
| CN114660885B (en) * | 2020-12-22 | 2023-05-23 | 宁波激智科技股份有限公司 | Speckle-removing laser television screen and preparation method thereof |
| CN114660882B (en) * | 2020-12-22 | 2024-03-19 | 宁波激智科技股份有限公司 | Speckle-removing laser television screen and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109445242A (en) | The anti-light projection screen of Fresnel for ultrashort out-of-focus projection's system | |
| CN106918983B (en) | projection screen | |
| CN207216263U (en) | It is totally reflected screen and optical projection system | |
| CN104062839B (en) | A kind of optical projection system with forward projection's optical screen | |
| CN109388013A (en) | Projection screen and optical projection system | |
| CN109388015A (en) | It is totally reflected screen and optical projection system | |
| JPWO2017013816A1 (en) | LIGHTING DEVICE, LIGHTING METHOD, AND VIDEO PROJECTION DEVICE USING THE SAME | |
| US10131795B2 (en) | Projection screen and projection display system | |
| CN110297385A (en) | Screen and optical projection system | |
| CN204009344U (en) | A kind of optical projection system with forward projection's optical screen | |
| CN205910490U (en) | Reflection of light micro -structure, projection screen and projecting system | |
| CN110412825A (en) | A kind of projection screen and optical projection system | |
| CN109388012A (en) | Projection screen and optical projection system | |
| CN209297097U (en) | The anti-light projection screen of Fresnel for ultrashort out-of-focus projection's system | |
| CN110068948A (en) | A kind of display device of variable vision area | |
| CN110297387A (en) | Screen and optical projection system | |
| CN107728419A (en) | A kind of projection screen and optical projection system | |
| JP2005208557A (en) | Reflex-type screen | |
| JP2008191613A (en) | Remote conference system | |
| WO2021078289A1 (en) | Projection screen | |
| JP2021177252A (en) | Screen and video display system | |
| WO2018166177A1 (en) | Transparent display device | |
| CN109388014A (en) | Projection screen and optical projection system | |
| KR102186241B1 (en) | Reflecting screen | |
| CN211857172U (en) | Long-focus ambient light resistant cloth curtain |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190308 |