CN108073029A - A kind of front projection screen with linear Fresnel lens layer - Google Patents
A kind of front projection screen with linear Fresnel lens layer Download PDFInfo
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- CN108073029A CN108073029A CN201810114872.9A CN201810114872A CN108073029A CN 108073029 A CN108073029 A CN 108073029A CN 201810114872 A CN201810114872 A CN 201810114872A CN 108073029 A CN108073029 A CN 108073029A
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- layer
- fresnel lens
- linear fresnel
- front projection
- projection screen
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- 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
-
- 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
Abstract
The invention discloses a kind of front projection screens with linear Fresnel lens layer, including linear Fresnel lens layer, the linear Fresnel lens layer is formed by several mirror units are mutually arranged, the linear Fresnel lens are the several rows of mutually arranged linear structure being of a straight line type on front view, and multiple cylinder micro units being vertically arranged are superimposed on each mirror unit of the linear Fresnel lens layer.The front projection screen replaces traditional circular Fresnel lens using linear Fresnel lens structure, high-precision control is carried out to the chief ray direction of upper downwards angle of visibility using linear Fresnel lens, multiple cylinder micro units being vertically arranged are superimposed on each mirror unit of the linear Fresnel lens layer again, expand horizontal view angle using cylinder micro unit, improve the uniformity of screen, with easy to process, the advantages of high precision machining.
Description
Technical field
The present invention relates to a kind of projection screen, more particularly to a kind of front projection screen with linear Fresnel lens layer.
Background technology
Existing ultrashort burnt front projection screen is imaged by way of scattering mostly, such as white plastic curtain, is not had to ambient light
Selectivity, causes influence of the ambient light to drop shadow effect very big, and when ambient light is brighter, the contrast of Projection Display is lower,
Display effect is poorer.
In order to overcome disadvantages described above, people have used circular Fresnel lens to add scattering diluent to realize on the projection screen.
Traditional circular Fresnel lens enclose mutually arranged off-centre operation structure on front view for a circle, using circular curvature to level
The chief ray direction at visual angle is controlled, using the zigzag protrusion on circular Fresnel lens to the chief ray side of upper downwards angle of visibility
To being controlled.Circular Fresnel lens can not only change reasonable layout of projector's chief ray in viewing space, moreover it is possible to disappear
Except the influence of a part of ambient light, the contrast of screen is improved, scattering diluent then provides viewing visual angle.By but in its own principle institute
Limit, existing circular Fresnel lens are not high to the control accuracy of upper downwards angle of visibility and horizontal view angle, and horizontal view angle is not big enough, screen
Uniformity is bad, and is difficult within the scope of the chief ray direction of upper downwards angle of visibility and horizontal view angle rationally is injected human eye simultaneously, in fact
Now preferable viewing experience.
The content of the invention
It is an object of the invention to overcome the above-mentioned deficiency in the presence of the prior art, providing a kind of has linear Fresnel
The front projection screen of lens jacket, the front projection screen replace traditional circular Fresnel saturating using linear Fresnel lens structure
Mirror carries out high-precision control using linear Fresnel lens to the chief ray direction of upper downwards angle of visibility, then in the linear Fresnel
Multiple cylinder micro units being vertically arranged are superimposed on each mirror unit of lens jacket, expand water using cylinder micro unit
Angle is looked squarely, improves the uniformity of screen, there is the advantages of easy to process, high precision machining.
In order to realize foregoing invention purpose, the present invention provides following technical schemes：
A kind of front projection screen with linear Fresnel lens layer, including linear Fresnel lens layer, the linear phenanthrene
Nie Er lens jackets are formed by several mirror units are mutually arranged, and the linear Fresnel lens are several rows of phase on front view
The linear structure being of a straight line type mutually arranged is superimposed on each mirror unit of the linear Fresnel lens layer more
A cylinder micro unit being vertically arranged.
The present apparatus replaces traditional circular Fresnel lens using linear Fresnel lens structure, and linear Fresnel lens exist
It is the several rows of mutually arranged linear structure being of a straight line type on front view, using linear Fresnel lens to the master of upper downwards angle of visibility
Radiation direction carries out high-precision control, improves screen gain.Again in each minute surface list of the linear Fresnel lens layer
Multiple cylinder micro units being vertically arranged are superimposed in member, it, can be along screen water when the cylinder micro unit passes through in projection ray
Square to component occur larger angle reflection, so as to provide larger horizontal view angle for screen, utilize the micro- list of cylinder
Member expands horizontal view angle, improves the uniformity of screen.And linear Fresnel lens structure is saturating compared to traditional circular Fresnel
Mirror has the advantages of easy to process, high precision machining.
Preferably, the cylinder micro unit is arc rod structure or triangular prism structure, which is that cross-sectional edge is
The column structure of arc, and the cylinder micro unit surface is compared with the linear Fresnel lens layer concave or convex.At least
Including following three kinds of situations, first, the cylinder micro unit is made of the identical arc column of several sizes, all arcs
Column is connected with each other and is arranged in array-like；Second, the cylinder micro unit is made of the identical triangular prism of several sizes, own
The triangular prism is connected with each other and is arranged in array-like；Third, the cylinder micro unit is by the identical arc column of several sizes
The triangular prism identical with several sizes is formed, and all arc columns and the triangular prism are connected with each other and mix and be arranged in battle array
Column-shaped.
Preferably, all mirror units are equidistantly uniformly arranged, and facilitate processing.
Preferably, the mirror unit includes working face and interference surface, and the cylinder micro unit is arranged on the working face
On.
Preferably, the linear Fresnel lens layer is fitted on supporting layer, and the linear Fresnel lens layer and branch
Reflecting layer is equipped between support layer.The reflecting layer is made of metal materials such as silver, aluminium, has high visible reflectivity, for anti-
Penetrate the incident light of projecting apparatus.
Preferably, the reflecting layer is positioned only on the working face of the mirror unit, so as to which interference surface is avoided also to send out
Life reflects and generates interference light, is conducive to improve the clarity and contrast of screen.
Preferably, the interference surface of the mirror unit is provided with pitch-dark film, to absorb ambient light, improves contrast.
Preferably, the reflecting layer is bonded together by adhesive linkage and the supporting layer, and is mixed in the adhesive linkage
There is black pigment, to absorb ambient light, improve contrast.
Preferably, the supporting layer is the curved-surface structure with concave curvature.
The chief ray direction of horizontal view angle is controlled using the amount of curvature of curve support layer, while utilizes linear phenanthrene
Zigzag protrusion on Nie Er lens controls the chief ray direction of upper downwards angle of visibility.It is (linear using two kinds of different structures
Fresnel Lenses and curve support layer) the chief ray scope of horizontal view angle and upper downwards angle of visibility is separately controlled respectively, not only
Control accuracy higher, and the accurate control to upper downwards angle of visibility and horizontal view angle chief ray direction can be realized simultaneously so that vertically regard
The chief ray direction of angle and horizontal view angle can be rationally injected within the scope of human eye simultaneously, meet actual viewing demand, realize preferable
Viewing experience.By the hard screen that entire screen is arranged to have concave curvature, the viewing uniformity can be effectively improved, is improved whole
The contrast of a screen obtains better viewing experience.
Preferably, the width of the supporting layer and the ratio of radius of curvature are 0.7-2.
Preferably, the supporting layer is made using flexible material, so as to which entire screen can be bent, is not take up transporting
Space can significantly save transportation cost.When mounted, it can crimp and be accommodated in house eminence, when use, just puts down, so as to
To reduce installation space, and avoid the problem of screen is chronically exposed in air, becomes easily infected by dust.
Preferably, the material of the supporting layer is cloth, polyurethane, PVC or PC.
Preferably, layer after the supporting layer includes support front layer, support middle level and supports, the support middle level is cellular board
Structure.Supporting layer plays the role of entire screen support protection, and entire screen can be not only reduced using honeycomb plate structure
Weight, and intensity and environmental requirement can be met.
Preferably, the screen further includes protective layer, dyed layer, smooth solid power layer and scattering layer.The protective layer is height
Molecular composite material layer, light transmittance is high, screen can effectively be prevented to be scratched or be contaminated；The dyed layer is more than by transmitance
85% high transmittance resin uniformly adds pigment and is made, and can improve the contrast of screen；The smooth solid power layer is using high saturating
Rate resin material, such as PET, PC, PMMA are crossed, the impact strength that screen can be effectively improved and the tolerance to environment, and
The basis of covering can be smeared as other layers；The scattering layer can be process by adding scattering diluent in colloid, to
Screen viewing visual angle is provided.
Preferably, the protective layer and dyed layer, which are processed as one, is combined into one layer, during processing in the colloid of protective layer
The pigment of the even mixing dyed layer, it is i.e. plastic after to be dried or photocuring.Both facilitate processing, and can further reduce screen
The thickness of curtain helps to promote drop shadow effect.
Preferably, the dyed layer peace solidating power layer, which is processed as one, is combined into one layer, during processing, in PC, PMMA or PET
Uniform hybrid pigment in resins or monomer solution is waited, then the modes machine-shapings such as stretching or heat cure are squeezed out by being molded.Both side
Just process, and can further reduce the thickness of screen, help to promote the clarity of drop shadow effect.
Preferably, the smooth solid power layer and scattering layer, which are processed as one, is combined into one layer, during processing, in PC, PMMA or PET
It waits and scattering diluent is uniformly mixed in resins or monomer solution, then the modes machine-shapings such as stretching or heat cure are squeezed out by being molded.Both
Facilitate processing, and can further reduce the thickness of screen, help to promote the clarity of drop shadow effect.
Preferably, the dyed layer, smooth solid power layer and scattering layer three, which are processed as one, is combined into one layer, during processing,
Scattering diluent and pigment are uniformly mixed in the resins such as PC, PMMA or PET or monomer solution, then stretching or heat cure are squeezed out by being molded
Etc. modes machine-shaping.Both processing had been facilitated, and can further reduce the thickness of screen, and helped to promote the clear of drop shadow effect
Degree.
Preferably, the dyed layer and scattering layer, which are processed as one, is combined into one layer, in colloid of the transmitance more than 85%
Scattering diluent and coloring pigment are mixed, by the colloid mixed uniformly coated in PC, PMMA or PET sheet surface, then pass through
The modes machine-shaping such as photocuring or heat cure.Both processing had been facilitated, and can further reduce the thickness of screen, and helped to be promoted
The clarity of drop shadow effect.
Preferably, the surface of the protective layer is processed as cloudy surface or hair side, prevents external environmental light from being generated in screen surface
Orienting reflex.
Preferably, the case hardness of the protective layer is more than 2H, prevents from scratching.
Preferably, the screen is additionally provided with the frame being connected to around the supporting layer and above layers, by each layer and branch
It supports laminated into an entirety, facilitates installation, transport and carrying.
Preferably, hook is additionally provided on the supporting layer, facilitates installation.
Compared with prior art, beneficial effects of the present invention：
(1) present apparatus replaces traditional circular Fresnel lens using linear Fresnel lens structure, and linear Fresnel is saturating
Mirror is the several rows of mutually arranged linear structure being of a straight line type on front view, using linear Fresnel lens to upper downwards angle of visibility
Chief ray direction carry out high-precision control, improve screen gain.Again in each mirror of the linear Fresnel lens layer
Multiple cylinder micro units being vertically arranged are superimposed on the unit of face, it, can be along screen when the cylinder micro unit passes through in projection ray
The reflection of larger angle occurs for the component of curtain horizontal direction, so as to provide larger horizontal view angle for screen, utilizes cylinder
Micro unit expands horizontal view angle, improves the uniformity of screen.And linear Fresnel lens structure is compared to traditional luxuriant and rich with fragrance alunite of circle
That lens, have the advantages of easy to process, high precision machining.
(2) the linear Fresnel lens layer is fitted on the curve support layer with concave curvature by the present apparatus, is utilized
The amount of curvature of curve support layer controls the chief ray direction of horizontal view angle, while using on linear Fresnel lens
Zigzag protrusion controls the chief ray direction of upper downwards angle of visibility.Using two kinds of different structures (linear Fresnel lens and
Curve support layer) the chief ray scope of horizontal view angle and upper downwards angle of visibility is separately controlled respectively, not only control accuracy higher,
And the accurate control to upper downwards angle of visibility and horizontal view angle chief ray direction can be realized simultaneously so that vertical angle of view and horizontal view angle
Chief ray direction can be rationally injected within the scope of human eye simultaneously, meet actual viewing demand, realize preferable viewing experience.It will be whole
A screen is arranged to the hard screen with concave curvature, can effectively improve the viewing uniformity, improves the contrast of entire screen,
Obtain better viewing experience.
(3) reflecting layer of the present apparatus is positioned only on the working face of the mirror unit, so as to which interference surface is avoided also to send out
Life reflects and generates interference light, is conducive to improve the clarity and contrast of screen；The interference surface of the mirror unit is set
Have in pitch-dark film or adhesive linkage and be mixed with black pigment, to absorb ambient light, improve contrast.
Description of the drawings：
Fig. 1 is the structure diagram of the linear Fresnel lens layer described in the embodiment of the present invention 1.
Fig. 2-Fig. 4 is structure diagram of the embodiment of the present invention 1 using the mirror unit of different cylinder micro units.
Fig. 5 is the light path schematic diagram of the front projection screen with linear Fresnel lens layer described in the embodiment of the present invention 1
(vertical direction).
Fig. 6 is the light path schematic diagram of the front projection screen with linear Fresnel lens layer described in the embodiment of the present invention 1
(horizontal direction).
Fig. 7 is the structure diagram in the reflecting layer and pitch-dark film described in the embodiment of the present invention 2.
Fig. 8 is reflecting layer described in the embodiment of the present invention 2 and is mixed with the structure diagram of the adhesive linkage of black pigment.
Fig. 9 is that the light path schematic diagram of the front projection screen with linear Fresnel lens layer described in the embodiment of the present invention 2 is (perpendicular
Nogata to).
Figure 10 is the three-dimensional signal that linear Fresnel lens layer described in the embodiment of the present invention 3 fits to curve support layer
Figure.
Figure 11 is the schematic diagram of the curve support layer curvature described in the embodiment of the present invention 3.
Figure 12 is the light path schematic diagram of the front projection screen with linear Fresnel lens layer described in the embodiment of the present invention 3
(horizontal direction).
Figure 13 is the structural representation of the front projection screen with linear Fresnel lens layer described in the embodiment of the present invention 5
Figure.
It is marked in figure：1- protective layers, 2- dyed layers, the smooth solid power layers of 3-, 4- scattering layers, 5- linear Fresnel lens layers,
51- mirror units, 511- working faces, 512- interference surfaces, 52- cylinder micro units, 6- hooks, 7- reflecting layer, 8- adhesive linkages, 9- branch
Support layer, 91- support front layers, 92- supports middle level, layer after 93- supports, 10- frames, the pitch-dark films of 11-.
Specific embodiment
With reference to test example and specific embodiment, the present invention is described in further detail.But this should not be understood
Following embodiment is only limitted to for the scope of the above-mentioned theme of the present invention, it is all that this is belonged to based on the technology that present invention is realized
The scope of invention.
Embodiment 1
As shown in Figure 1, a kind of front projection screen with linear Fresnel lens layer, including linear Fresnel lens layer 5,
Mirror unit 51 is mutually arranged is formed by several for the linear Fresnel lens layer 5, each mirror unit 51 it is transversal
Face is equipped with zigzag protrusion, and the linear Fresnel lens 5 are several rows of equidistantly evenly distributed in straight on front view
The linear structure of line style.
Multiple cylinders being vertically arranged are superimposed on each mirror unit 51 of the linear Fresnel lens layer 5
Micro unit 52.As shown in figs 2-4, the cylinder micro unit 52 is arc rod structure or triangular prism structure, and the cylinder is micro-
52 surface of unit is compared with 51 concave or convex of mirror unit.Including at least following three kinds of situations, first, the cylinder is micro-
Unit 52 is made of the identical arc column of several sizes, and all arc columns are connected with each other and are arranged in array-like；Second,
The cylinder micro unit 52 is made of the identical triangular prism of several sizes, and all triangular prisms are connected with each other and are arranged in battle array
Column-shaped；Third, the cylinder micro unit 52 is by the identical arc column of several sizes triangular prism structure identical with several sizes
Into all arc columns and the triangular prism are connected with each other and mix and be arranged in array-like.
Each mirror unit 51 includes working face 511 and interference surface 512, and the cylinder micro unit 52 is arranged on institute
It states on working face 511.
As shown in fig. 6, the linear Fresnel lens layer 5 can carry out high-precision control to the chief ray direction of upper downwards angle of visibility
System, so as to which the brightness of screen be substantially improved, in use, projecting apparatus is placed in front of screen, when projecting apparatus and screen distance are smaller
When, good drop shadow effect can be still obtained, realizes short focus projection.The light projected in projecting apparatus, passes through linear Fresnel
Lens jacket 5 and through reflecting layer 7 reflect after, light principal direction concentrate to be penetrated in the form of the outer surface directional light for being approximately perpendicular to screen
Go out or light principal direction concentration converge in human eye viewing in the range of, and ambient light pass through linear Fresnel lens layer 5 when, saturating
Multiple reflections can be carried out in mirror, light path is much larger than projection ray, therefore, can eliminate ambient light interference significantly, reach environment resistant
The imaging effect of light, high contrast.
As shown in fig. 7, multiple cylinder micro units 52 being vertically arranged are superimposed on the mirror unit 51, projection ray's warp
When crossing the cylinder micro unit 52, the reflection of larger angle can occur along the component in screen level direction, so as to be screen
Larger horizontal view angle is provided, expands horizontal view angle using cylinder micro unit 52, improves the uniformity of screen.
Embodiment 2
The linear Fresnel lens layer 5 is fitted on supporting layer 9, and the linear Fresnel lens layer 5 and supporting layer 9
Between be equipped with reflecting layer 7, the present embodiment and embodiment 1 the difference is that, the reflecting layer 7 is positioned only at the minute surface list
On the working face 511 of member 51.Interference light is generated so as to which the interference surface 512 of mirror unit 51 is avoided also to occur to reflect, is had
Beneficial to the clarity and contrast for improving screen.
The linear Fresnel lens layer 5 is additionally provided with to absorb the black coating of ambient light, such as shown in Fig. 7, it is described
The interference surface 512 of mirror unit 51 is provided with shown in pitch-dark film 11 such as Fig. 8, and the reflecting layer 7 passes through 8 He of adhesive linkage
The supporting layer 9 bonds together, and is mixed with black pigment in the adhesive linkage 8.As shown in figure 9, ambient light is by pitch-dark
When film 11 is mixed with the adhesive linkage 8 of black pigment, most of ambient light can be absorbed, and will not be reflected, therefore, by pitch-dark
Film 11 and the adhesive linkage 8 of black pigment is mixed with to absorb ambient light, can effectively improve the contrast of screen.
Embodiment 3
As shown in Figure 10-Figure 11, difference lies in the supporting layer 9 is with concave curvature to the present embodiment with embodiment 2
Curved-surface structure, the width W of curve support layer 9 and the ratio of radius of curvature R are W/R=0.7-2.Before supporting layer 9 includes support
Layer 93 after layer 91, support middle level 92 and support, and the support middle level 92 is honeycomb plate structure.
It as shown in figure 12, can be to water using the amount of curvature of curve support layer 9 when curve support layer 9 passes through in projection ray
The chief ray direction for looking squarely angle control effectively, and effectively improves the viewing uniformity and contrast.Utilize the song of curve support layer
Rate size controls the chief ray direction of horizontal view angle, while using the zigzag protrusion on linear Fresnel lens to upper
The chief ray direction of downwards angle of visibility is controlled.Using two kinds of different structures (linear Fresnel lens and curve support layer) respectively
The chief ray scope of horizontal view angle and upper downwards angle of visibility is separately controlled, not only control accuracy higher, and can realized simultaneously pair
Upper downwards angle of visibility and the accurate control in horizontal view angle chief ray direction so that the chief ray direction of vertical angle of view and horizontal view angle can be same
Shi Heli is injected within the scope of human eye, meets actual viewing demand, realizes preferable viewing experience.Entire screen is arranged to have
There is the hard screen of concave curvature, the viewing uniformity can be effectively improved, improve the contrast of entire screen, obtain better viewing
Experience.
Embodiment 4
Difference lies in the supporting layer 9 is made the present embodiment using flexible material, the support with embodiment 2
The material of layer 9 is cloth, polyurethane, PVC or PC.
The supporting layer is made using flexible material, so as to which entire screen can be bent, is not take up transport space, can
Significantly save transportation cost.When mounted, it can crimp and be accommodated in house eminence, when use just puts down, so as to reduce
Installation space, and avoid the problem of screen is chronically exposed in air, becomes easily infected by dust.
Embodiment 5
As shown in figure 13, the present embodiment and embodiment 3 difference lies in, the screen further include protective layer 1, dyed layer 2,
Smooth solid power layer 3 and scattering layer 4, the dyed layer 2, smooth solid power layer 3 and 4 three of scattering layer are processed as one and are combined into one layer.
The screen is additionally provided with the frame 10 being connected to around the supporting layer 9 and above layers, by each layer and supporting layer 9
An entirety is synthesized, facilitates installation, transport and carrying.Hook 6 is additionally provided on the supporting layer 9, facilitates installation.
Above example is only to illustrate the present invention and not limits technical solution described in the invention, although this explanation
Book is with reference to above-mentioned each embodiment to present invention has been detailed description, but the present invention is not limited to above-mentioned specific implementation
Mode, therefore any modify to the present invention or equivalent substitution；And the technical side of all spirit and scope for not departing from invention
Case and its improvement, should be covered by the scope of the claims of the present invention.
Claims (15)
1. a kind of front projection screen with linear Fresnel lens layer, which is characterized in that including linear Fresnel lens layer
(5), mirror unit (51) is mutually arranged is formed by several for the linear Fresnel lens layer (5), and the linear Fresnel is saturating
Mirror (5) is the several rows of mutually arranged linear structure being of a straight line type on front view, the linear Fresnel lens layer (5)
Multiple cylinder micro units (52) being vertically arranged are superimposed on each mirror unit (51).
2. a kind of front projection screen with linear Fresnel lens layer according to claim 1, which is characterized in that described
Cylinder micro unit (52) is arc rod structure or triangular prism structure, and cylinder micro unit (52) surface is compared with the minute surface
Unit (51) concave or convex.
3. a kind of front projection screen with linear Fresnel lens layer according to claim 1, which is characterized in that all
The mirror unit (51) is equidistantly uniformly arranged.
4. a kind of front projection screen with linear Fresnel lens layer according to claim 1, which is characterized in that each
The mirror unit (51) includes working face (511) and interference surface (512), and the cylinder micro unit (52) is arranged on the work
Make on face (511).
5. a kind of front projection screen with linear Fresnel lens layer according to claim 1, which is characterized in that described
Linear Fresnel lens layer (5) is fitted on supporting layer (9), and between the linear Fresnel lens layer (5) and supporting layer (9)
Equipped with reflecting layer (7).
6. a kind of front projection screen with linear Fresnel lens layer according to claim 5, which is characterized in that described
Reflecting layer (7) is positioned only on the working face (511) of the mirror unit (51).
7. a kind of front projection screen with linear Fresnel lens layer according to claim 6, which is characterized in that described
The interference surface (512) of mirror unit (51) is provided with pitch-dark film (11).
8. a kind of front projection screen with linear Fresnel lens layer according to claim 6, which is characterized in that described
Reflecting layer (7) is bonded together by adhesive linkage (8) and the supporting layer (9), and is mixed with black face in the adhesive linkage (8)
Material.
9. a kind of front projection screen with linear Fresnel lens layer according to claim 5, which is characterized in that described
Supporting layer (9) is the curved-surface structure with concave curvature.
A kind of 10. front projection screen with linear Fresnel lens layer according to claim 9, which is characterized in that institute
It is 0.7-2 to state the width of supporting layer (9) and the ratio of radius of curvature.
A kind of 11. front projection screen with linear Fresnel lens layer according to claim 5, which is characterized in that institute
Supporting layer (9) is stated to be made using flexible material.
A kind of 12. front projection screen with linear Fresnel lens layer according to claim 11, which is characterized in that institute
The material for stating supporting layer (9) is cloth, polyurethane, PVC or PC.
A kind of 13. front projection screen with linear Fresnel lens layer according to claim 5, which is characterized in that institute
Stating supporting layer (9) includes support front layer (91), supports layer (93) after middle level (92) and support, and support middle level (92) is bee
Nest harden structure.
14. according to a kind of any front projection screens with linear Fresnel lens layer of claim 1-13, feature
It is, the screen further includes protective layer (1), dyed layer (2), smooth solid power layer (3) and scattering layer (4).
A kind of 15. front projection screen with linear Fresnel lens layer according to claim 14, which is characterized in that institute
It states protective layer (1) and dyed layer (2) is processed as one and is combined into one layer or the peaceful solidating power layer (3) of the dyed layer (2) is processed as
It is integrally combined into one layer or smooth power layer (3) and the scattering layer (4) admittedly is processed as one and is combined into one layer or the dyed layer (2)
It is processed as one with scattering layer (4) and is combined into one layer or the dyed layer (2), smooth solid power layer (3) and scattering layer (4) three and adds
Work, which is integrated, is combined into one layer.
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| CN201810114872.9A CN108073029A (en) | 2018-02-05 | 2018-02-05 | A kind of front projection screen with linear Fresnel lens layer |
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| CN201810114872.9A CN108073029A (en) | 2018-02-05 | 2018-02-05 | A kind of front projection screen with linear Fresnel lens layer |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108490728A (en) * | 2018-06-07 | 2018-09-04 | 成都恒坤光显材料科技有限公司 | A kind of front projection screen that visual angle is controllable |
| CN108490727A (en) * | 2018-06-07 | 2018-09-04 | 成都恒坤光显材料科技有限公司 | A kind of front projection screen that novel visual angle is controllable |
| CN109375467A (en) * | 2018-12-05 | 2019-02-22 | 张家港康得新光电材料有限公司 | Ultrashort out-of-focus projection's curtain |
| CN111352278A (en) * | 2018-12-22 | 2020-06-30 | 奇象光学有限公司 | Viewing angle control film and display device using the same |
| US20210026231A1 (en) * | 2018-03-22 | 2021-01-28 | Appotronics Corporation Limited | Curved screen and method of arranging microstructure therein, and projection system |
| 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 |
| CN113741134A (en) * | 2021-09-27 | 2021-12-03 | 青岛海信激光显示股份有限公司 | Projection screen and projection device |
| CN115202144A (en) * | 2022-09-14 | 2022-10-18 | 深圳市真屏科技发展有限公司 | Projection screen and manufacturing method thereof |
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