CN207586629U - A kind of controllable front projection screen in horizontal view angle - Google Patents
A kind of controllable front projection screen in horizontal view angle Download PDFInfo
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- CN207586629U CN207586629U CN201721889014.9U CN201721889014U CN207586629U CN 207586629 U CN207586629 U CN 207586629U CN 201721889014 U CN201721889014 U CN 201721889014U CN 207586629 U CN207586629 U CN 207586629U
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- fresnel lenses
- horizontal view
- view angle
- front projection
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Abstract
The utility model discloses a kind of controllable front projection screens in horizontal view angle, including Fresnel Lenses layer, the Fresnel Lenses layer includes the first Fresnel Lenses layer, the second Fresnel Lenses layer is superimposed on the first Fresnel Lenses layer, specifically, a mirror unit of the second Fresnel Lenses layer is superimposed on each mirror unit of the first Fresnel Lenses layer, and the width of each mirror unit of the second Fresnel Lenses layer is less than the width of each mirror unit of the first Fresnel Lenses layer, the width of each mirror unit of the second Fresnel Lenses layer is presented with intermediate small, the big form gradually to broaden from centre to outside in both ends.The utility model can realize effective control to the chief ray range of horizontal view angle so that the chief ray direction of vertical angle of view and horizontal view angle can be rationally injected within the scope of human eye simultaneously, meet practical viewing demand, realize preferable viewing experience.
Description
Technical field
The utility model is related to a kind of projection screen, the controllable front projection screen in more particularly to a kind of horizontal view angle.
Background technology
Existing ultrashort burnt front projection screen is imaged, such as white plastic curtain by way of scattering mostly, 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 Fresnel Lenses to add scattering diluent to realize on the projection screen.Fei Nie
Your lens can not only change reasonable layout of projector's chief ray in viewing space, moreover it is possible to eliminate the influence of ambient light, improve
The contrast of screen, scattering diluent then provide viewing visual angle.It is limited by but in its own principle, existing front projection screen is difficult same
When human eye is rationally injected into the chief ray direction of vertical angle of view and horizontal view angle within the scope of, realize preferable viewing experience.
Invention content
The purpose of the utility model is to overcome the above-mentioned deficiencies in the presence of the prior art, and providing a kind of horizontal view angle can
The front projection screen of control, the front projection screen by the first Fresnel Lenses be laminated plus the second Fresnel Lenses layer, it can be achieved that
Effective control to the chief ray range of horizontal view angle.
In order to achieve the above-mentioned object of the invention, the utility model provides following technical scheme：
A kind of controllable front projection screen in horizontal view angle, including Fresnel Lenses layer, the Fresnel Lenses layer includes the
One Fresnel Lenses layer is superimposed with the second Fresnel Lenses layer on the first Fresnel Lenses layer, specifically, described
A mirror unit of the second Fresnel Lenses layer is superimposed on each mirror unit of one Fresnel Lenses layer, and described
The width of each mirror unit of second Fresnel Lenses layer is less than each mirror unit of the first Fresnel Lenses layer
Width, the width of each mirror unit of the second Fresnel Lenses layer are presented with big in the end and small in the middle from centre to outer
The form that side gradually broadens.
The utility model is superimposed a second small phenanthrene on each layer of mirror unit of original first Fresnel Lenses
The mirror unit of Nie Er lens jackets, the minute surface accounting of each mirror unit by changing the second Fresnel Lenses layer so that the
The width of each mirror unit of two Fresnel Lenses layers is presented gradually to be broadened with big in the end and small in the middle from centre to outside
(width closer to each mirror unit of the second Fresnel Lenses layer of center is smaller, horizontal and upper and lower for form
The light energy allocation proportion in direction is smaller).The second Fresnel is controlled on circumferencial direction along each ring of the first Fresnel lens
Lens are in the first Fresnel lens accounting, thus it is possible to vary circumferencial direction is horizontal everywhere and upper and lower light energy allocation proportion, can
To improve luminous energy upper and lower overshoot correction or so undercorrection in the viewing areas of human eye caused by a single Fresnel lens
The phenomenon that.Realize effective control to the chief ray range of horizontal view angle so that the chief ray side of vertical angle of view and horizontal view angle
Within the scope of it rationally can inject human eye simultaneously, meet practical viewing demand, realize preferable viewing experience.
Preferably, the second Fresnel Lenses layer and the first Fresnel Lenses layer are an integral molding structure, and facilitate processing.
Preferably, the screen further includes protective layer, dyed layer, smooth solid power layer, scattering layer and reflecting layer.The protection
Layer is polymer composite layer, and light transmittance is high, and screen can be effectively prevent to be scratched or be contaminated；The dyed layer is by transmitance
High transmittance resin more than 85% uniformly adds pigment and is made, and can improve the contrast of screen；The smooth solid power layer uses
High transmittance resin material, such as PET, PC, PMMA, the impact strength that screen can be effectively improved and the tolerance energy to environment
Power, and the basis of covering can be smeared as other layers；The scattering layer can be process by adding scattering diluent in colloid,
To provide screen viewing visual angle；The reflecting layer is made of metal materials such as silver, aluminium, is had high visible reflectivity, is used for
The incident light of episcopic projector.
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 it processes, 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 are processed as one and are 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 are processed as one and are 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 protective layer is composed of multiple cylinder micro-structures being vertically arranged.The protective layer is set
Into cylinder micro-structure, when the cylinder micro-structure is passed through by projection ray, can occur along the component in screen level direction compared with big angle
The reflection of degree so as to provide larger left and right visual angle for screen, a small amount of scattering diluent is added in screen, then is carried for screen
For smaller upper downwards angle of visibility, therefore, the left and right visual angle of screen is bigger than upper downwards angle of visibility.Using such technology, tradition can be overcome
The pure scattering diluent that added in screen come when providing identical left and right and upper downwards angle of visibility, pure scattering diluent has been looked after left and right and has been regarded
Angle, and waste the luminous energy of downwards angle of visibility, the defects of being unfavorable for improving screen gain.The utility model both expands left and right and regards
Angle, while downwards angle of visibility can be compressed again, greatly improve screen gain.
Preferably, the cylinder micro-structure is arc column or triangular prism, which is the column that cross-sectional edge is arc
Body structure.
Preferably, the screen further includes the backboard behind the reflecting layer, and the backboard passes through adhesive linkage and described
Reflecting layer bonds together, and plays the role of supporting protection to entire screen.
Preferably, the backboard includes layer after backboard front layer, backboard middle level and backboard, and the backboard middle level is hardened for honeycomb
Structure can not only reduce the weight of entire screen using honeycomb plate structure, and can meet intensity and environmental requirement.
Preferably, the screen is additionally provided with the frame being connected to around the backboard and above layers, by each layer and backboard
An entirety is synthesized, facilitates installation, transport and carrying.
Preferably, hook is additionally provided on the backboard, facilitates installation.
Compared with prior art, the beneficial effects of the utility model：
The utility model is superimposed a second small phenanthrene on each layer of mirror unit of original first Fresnel Lenses
The mirror unit of Nie Er lens jackets is accounted for by each mirror unit minute surface in the horizontal direction for changing the second Fresnel Lenses layer
Than so that the width of each mirror unit of the second Fresnel Lenses layer is presented with big in the end and small in the middle from centre to outside
The form gradually to broaden.The second Fresnel lens is controlled on circumferencial direction along each ring of the first Fresnel lens in the first phenanthrene
Alunite ear lens accounting, thus it is possible to vary circumferencial direction is horizontal everywhere and upper and lower light energy allocation proportion, can improve with one
Luminous energy caused by single Fresnel lens is in the viewing areas of human eye the phenomenon that upper and lower overshoot correction or so undercorrection.Realization pair
Effective control of the chief ray range of horizontal view angle so that the chief ray direction of vertical angle of view and horizontal view angle can rationally be penetrated simultaneously
Within the scope of entering human eye, meet practical viewing demand, realize preferable viewing experience.
Description of the drawings：
Fig. 1 is the structure diagram of the controllable front projection screen in horizontal view angle described in embodiment 1.
Fig. 2 is the three-view diagram of Fig. 1.
Fig. 3 is the light path schematic diagram (vertical direction) of the controllable front projection screen in horizontal view angle described in the utility model.
Fig. 4 is the light path schematic diagram (horizontal direction) of the controllable front projection screen in horizontal view angle described in the utility model.
Fig. 5 is the structure diagram of the protective layer with cylinder micro-structure described in embodiment 2.
Fig. 6 is the structure diagram of the controllable front projection screen in horizontal view angle described in embodiment 3.
It is marked in figure：1- protective layers, 11- arc columns, 12- triangular prisms, 2- dyed layers, the smooth solid power layers of 3-, 4- scattering layers,
5- Fresnel Lenses layers, 51- the first Fresnel Lenses layers, 52- the second Fresnel Lenses layers, 6- reflecting layer, 7- adhesive linkages, the 8- back ofs the body
Plate, 81- backboard front layers, 82- backboards middle level, layer after 83- backboards, 9- frames, 10- hooks.
Specific embodiment
The utility model is described in further detail with reference to test example and specific embodiment.It but should not be by this
The range for being interpreted as the above-mentioned theme of the utility model is only limitted to following embodiment, all to be realized based on the utility model content
Technology belongs to the scope of the utility model.
Embodiment 1
As Figure 1-Figure 2, the controllable front projection screen in a kind of horizontal view angle, including Fresnel Lenses layer 5, the phenanthrene alunite
You include the first Fresnel Lenses layer 51 by lens jacket 5, and it is saturating to be superimposed with the second Fresnel on the first Fresnel Lenses layer 51
Mirror layer 52, specifically, it is saturating to be superimposed with second Fresnel on each mirror unit of the first Fresnel Lenses layer 51
One mirror unit of mirror layer 52, and the width of each mirror unit of the second Fresnel Lenses layer 52 is less than described first
The width of each mirror unit of Fresnel Lenses layer 51, the width of each mirror unit of the second Fresnel Lenses layer 52
Present by it is big in the end and small in the middle gradually broaden from centre to outside in the form of.The second Fresnel Lenses layer 52 and first
Fresnel Lenses layer 51 is an integral molding structure, and facilitates processing.
As shown in figure 3, when the light of projecting apparatus outgoing is by the Fresnel Lenses layer 5, light principal direction is concentrated near
The form of the outer surface directional light of normal to screen projects or light principal direction concentration is converged in the range of human eye viewing, because
This, can reduce the visual angle of emergent ray to a certain extent, that is, increase the brightness of screen in certain angular field of view, increase
The gain of large screen.And ambient light pass through Fresnel Lenses layer 5 when, multiple reflections can be carried out in lens, light path is much larger than
Therefore projection ray, can eliminate ambient light interference significantly, obtain environment resistant light, high contrast imaging effect.
Importantly, the utility model is superimposed one on each layer of mirror unit of original first Fresnel Lenses 51
The mirror unit of a the second small Fresnel Lenses layer 52, by each mirror unit for changing the second Fresnel Lenses layer 52
Minute surface accounting so that the width of each mirror unit of the second Fresnel Lenses layer 52 present with it is big in the end and small in the middle therefrom
Between the form that gradually broadens to outside.As Figure 3-Figure 4, the convergence distance of vertical angle of view is L1, and horizontal view angle is in the first phenanthrene
The focusing distance L2 of alunite ear lens 51, horizontal view angle in the focusing distance L3 of the second Fresnel lens 52, wherein L1=L2 ＞ L3,
The second Fresnel lens 52 is controlled on circumferencial direction along 51 each ring of the first Fresnel lens in the first Fresnel lens 51
Accounting, thus it is possible to vary circumferencial direction is horizontal everywhere and upper and lower light energy allocation proportion, can improve with a single Fresnel
Luminous energy caused by lens is in the viewing areas of human eye the phenomenon that upper and lower overshoot correction or so undercorrection.Vertical angle of view and level
The chief ray direction at visual angle can be rationally injected within the scope of human eye simultaneously, meet practical viewing demand, realize preferable viewing body
It tests.
Embodiment 2
As shown in figure 5, the present embodiment is with embodiment 1, difference lies in the protective layer 1 is by multiple cylinders being vertically arranged
Micro-structure is composed, and the cylinder micro-structure is arc column 11 or triangular prism 12.
Including at least following three kinds of situations, first, the protective layer 1 is made of the identical arc column 11 of several sizes,
All arc columns 11 are connected with each other and are arranged in array-like；Second, the protective layer 1 is by the identical trigone of several sizes
Column 12 is formed, and all triangular prisms 12 are connected with each other and are arranged in array-like；Third, the protective layer 1 is by several sizes
Identical arc column 11 triangular prism 12 identical with several sizes is formed, 12 phase of all arc columns 11 and the triangular prism
It connects and mixes and be arranged in array-like.
The protective layer is arranged to cylinder micro-structure, it, can be along screen when the cylinder micro-structure is passed through by projection ray
The reflection of larger angle occurs for the component of horizontal direction, so as to provide larger left and right visual angle for screen, adds in screen
Add a small amount of scattering diluent, then provide smaller upper downwards angle of visibility for screen, therefore, the left and right visual angle of screen is bigger than upper downwards angle of visibility.It adopts
With such technology, traditional pure addition scattering diluent in screen can be overcome to provide identical left and right and upper downwards angle of visibility
When, pure scattering diluent has looked after left and right visual angle, and wastes the luminous energy of downwards angle of visibility, is unfavorable for improving lacking for screen gain
It falls into.The utility model had not only expanded left and right visual angle, but also can compress downwards angle of visibility, greatly improved screen gain.
Embodiment 3
As shown in fig. 6, the present embodiment and embodiment 1 difference lies in, the screen include the protective layer 1 being connected with each other,
Dyed layer 2, smooth solid power layer 3, scattering layer 4, Fresnel Lenses layer 5 and reflecting layer 6, further include behind the reflecting layer 6
Backboard 8, the backboard 8 are bonded together by adhesive linkage 7 and the reflecting layer 6.
The protective layer 1 is polymer composite layer, and light transmittance is high, and screen can be effectively prevent to be scratched or be contaminated,
The surface of the protective layer 1 is processed as cloudy surface or hair side, and the case hardness of the protective layer 1 is more than 2H.
The dyed layer 2 uniformly adds pigment by high transmittance resin of the transmitance more than 85% and is made, and can improve screen
Contrast；The smooth solid power layer 3 uses high transmittance resin material, such as PET, PC, PMMA, can effectively improve screen
Impact strength and the tolerance to environment, and can as other layers smear covering basis；The scattering layer 4 can pass through
It adds scattering diluent in colloid to be process, to provide screen viewing visual angle.The dyed layer 2, smooth solid power layer 3 and scattering
4 three of layer, which are processed as one, is combined into one layer, during processing, the uniformly mixing scattering in the resins such as PC, PMMA or PET or monomer solution
Agent and pigment, then squeeze out the modes machine-shapings such as stretching or heat cure by being molded.Both processing had been facilitated, and can further reduce
The thickness of screen helps to promote the clarity of drop shadow effect.
The reflecting layer 6 is made of metal materials such as silver, aluminium, has high visible reflectivity, for episcopic projector
Incident light.The backboard 8 includes layer 83 after backboard front layer 81, backboard middle level 82 and backboard, and the backboard middle level 82 is cellular board
Structure.The weight of entire screen can be not only reduced using honeycomb plate structure, and intensity and environmental requirement can be met.The screen
Curtain is additionally provided with the frame 9 being connected to around the backboard 8 and above layers, and each layer and backboard 8 are synthesized an entirety, facilitate peace
Dress, transport and carrying.Hook 10 is additionally provided on the backboard 8, facilitates installation.
Above example is only to illustrate the utility model and not limits the described technical solution of the utility model, to the greatest extent
Pipe this specification has been carried out being described in detail with reference to above-mentioned each embodiment to the utility model, but the utility model not office
It is limited to above-mentioned specific embodiment, therefore any modifies to the utility model or equivalent replacement；And all do not depart from practicality
The technical solution of novel spirit and scope and its improvement should all be covered in the right of the utility model.
Claims (11)
1. the controllable front projection screen in a kind of horizontal view angle, which is characterized in that including Fresnel Lenses layer (5), the Fresnel
Lens jacket (5) includes the first Fresnel Lenses layer (51), and the second luxuriant and rich with fragrance alunite is superimposed on the first Fresnel Lenses layer (51)
That lens jacket (52), specifically, being superimposed with described second on each mirror unit of the first Fresnel Lenses layer (51)
One mirror unit of Fresnel Lenses layer (52), and the width of each mirror unit of the second Fresnel Lenses layer (52)
Less than the width of each mirror unit of the first Fresnel Lenses layer (51), the second Fresnel Lenses layer (52) it is every
The width of a mirror unit present by it is big in the end and small in the middle gradually broaden from centre to outside in the form of.
A kind of 2. controllable front projection screen in horizontal view angle according to claim 1, which is characterized in that the described second luxuriant and rich with fragrance alunite
That lens jacket (52) and the first Fresnel Lenses layer (51) are an integral molding structure.
3. the controllable front projection screen in a kind of horizontal view angle according to claim 1, which is characterized in that the screen also wraps
Include protective layer (1), dyed layer (2), smooth solid power layer (3), scattering layer (4) and reflecting layer (6).
A kind of 4. controllable front projection screen in horizontal view angle according to claim 3, which is characterized in that the protective layer
(1) it is processed as one with dyed layer (2) and is combined into one layer.
A kind of 5. controllable front projection screen in horizontal view angle according to claim 3, which is characterized in that the dyed layer
(2) peaceful solidating power layer (3), which is processed as one, is combined into one layer.
A kind of 6. controllable front projection screen in horizontal view angle according to claim 3, which is characterized in that the smooth solid power
Layer (3) and scattering layer (4) are processed as one and are combined into one layer.
A kind of 7. controllable front projection screen in horizontal view angle according to claim 3, which is characterized in that the dyed layer
(2), smooth solid power layer (3) and scattering layer (4) three are processed as one and are combined into one layer.
A kind of 8. controllable front projection screen in horizontal view angle according to claim 3, which is characterized in that the dyed layer
(2) it is processed as one with scattering layer (4) and is combined into one layer.
A kind of 9. controllable front projection screen in horizontal view angle according to claim 3, which is characterized in that the protective layer
(1) it is composed of multiple cylinder micro-structures being vertically arranged.
10. the controllable front projection screen in a kind of horizontal view angle according to claim 9, which is characterized in that the cylinder is micro-
Structure is arc column (11) or triangular prism (12).
11. according to a kind of controllable front projection screen in any horizontal view angles of claim 3-10, which is characterized in that described
Screen further includes the backboard (8) after the reflecting layer (6), and the backboard (8) passes through adhesive linkage (7) and the reflecting layer
(6) it bonds together, the backboard (8) includes layer (83) after backboard front layer (81), backboard middle level (82) and backboard, the backboard
Middle level (82) is honeycomb plate structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721889014.9U CN207586629U (en) | 2017-12-28 | 2017-12-28 | A kind of controllable front projection screen in horizontal view angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721889014.9U CN207586629U (en) | 2017-12-28 | 2017-12-28 | A kind of controllable front projection screen in horizontal view angle |
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| Publication Number | Publication Date |
|---|---|
| CN207586629U true CN207586629U (en) | 2018-07-06 |
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ID=62740785
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721889014.9U Withdrawn - After Issue CN207586629U (en) | 2017-12-28 | 2017-12-28 | A kind of controllable front projection screen in horizontal view angle |
Country Status (1)
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| CN (1) | CN207586629U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107908068A (en) * | 2017-12-28 | 2018-04-13 | 成都恒坤光显材料科技有限公司 | A kind of controllable front projection screen in horizontal view angle |
| WO2022242303A1 (en) * | 2021-05-19 | 2022-11-24 | 成都菲斯特科技有限公司 | Projection screen and projection screen convergence point change fitting method |
-
2017
- 2017-12-28 CN CN201721889014.9U patent/CN207586629U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107908068A (en) * | 2017-12-28 | 2018-04-13 | 成都恒坤光显材料科技有限公司 | A kind of controllable front projection screen in horizontal view angle |
| CN107908068B (en) * | 2017-12-28 | 2023-05-26 | 成都恒坤光显材料科技有限公司 | Front projection screen with controllable horizontal viewing angle |
| WO2022242303A1 (en) * | 2021-05-19 | 2022-11-24 | 成都菲斯特科技有限公司 | Projection screen and projection screen convergence point change fitting method |
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