CN107315314A - Two-sided viewing printing opacity projection screen and optical projection system - Google Patents
Two-sided viewing printing opacity projection screen and optical projection system Download PDFInfo
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- CN107315314A CN107315314A CN201710760641.0A CN201710760641A CN107315314A CN 107315314 A CN107315314 A CN 107315314A CN 201710760641 A CN201710760641 A CN 201710760641A CN 107315314 A CN107315314 A CN 107315314A
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- printing opacity
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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
- G03B21/62—Translucent screens
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- Overhead Projectors And Projection Screens (AREA)
Abstract
The invention provides a kind of two-sided viewing printing opacity projection screen and optical projection system, it is related to projection display technique field.The two-sided viewing printing opacity projection screen includes screen base, one side surface of the screen base is arranged at intervals with multiple solid into slice, it is described it is solid into slice mixed with diffusion particle, multiple solid interval regions between slice that the solid side inclined-plane adjacent with the screen base into slice is coated with reflecting layer, the screen base are provided with transparent area.Relative to prior art, the projection screen that the present invention is provided can make the beholder positioned at screen sides to see the projected image on screen, the scene of screen dorsal part can be seen by the transparent area being distributed on screen simultaneously, and two-way light is not interfere with each other, being perfectly combined for image information display is realized, dual visual enjoyment is provided for beholder.
Description
Technical field
The present invention relates to projection display technique field, in particular to a kind of two-sided viewing printing opacity projection screen and throwing
Shadow system.
Background technology
At present, widely used projection screen generally can be divided into the reflective, class of transmission-type two in field of projection display.Its
In, reflective to be used to just throw, transmission-type is used for rear-projection.
Reflective projection screen is applied to observer and projector is in the situation of the same side.Display image is thrown by projector
It is mapped on reflective projection screen, and finally reflexes in the eye of observer.
Transmissive projection screen is then applied to observer and projector is respectively at the situation of projection screen both sides.Now,
Light beam on the projector to projection screen of screen side passes through the screen, and incides the sight positioned at screen opposite side
In the person's of examining eye.
The projection screen of two kinds of above-mentioned main flows, can only observe what is shown on projection screen, be projected out by projector
Piece image.
However, in stage performance, Window Display or some special occasions, it is necessary to foreground image can be presented, while
Can see that the demand of background content is more and more, and existing implementation method be shown with transparent liquid crystal, transparent OLED is shown, unreal
Shadow shows or projecting holographic screen display etc. that these methods can obtain relatively good display effect, still, because its projection is former
The limitation of reason, for need high brightness, oversize prospect display picture demand, but never good solution.
The content of the invention
It is an object of the invention to provide a kind of two-sided viewing printing opacity projection screen and optical projection system, it can be effectively improved
Above mentioned problem.
What embodiments of the invention were realized in：
In a first aspect, the embodiments of the invention provide a kind of two-sided viewing printing opacity projection screen, it includes screen base, institute
State screen base a side surface be arranged at intervals with it is multiple solid into slice, it is described it is solid into slice mixed with diffusion particle, institute
State the solid side inclined-plane adjacent with the screen base into slice be coated with it is multiple described in reflecting layer, the screen base
The solid interval region between slice is provided with transparent area, and projected light is provided with described solid into slice by the screen base
Side incide described solid into slice, a portion projected light solid is reflected and along away from described by described into slice
The direction outgoing of screen base, another part projected light through it is described it is solid incided into slice on the reflecting layer, reflected
And pass through the screen base, edge and by the solid opposite direction outgoing of projected light reflected into slice, by the screen
Base material is provided with the solid side into slice and incides bias light in the screen base, through in the screen base
Transparent area is transmitted, and along the projected light identical direction outgoing with passing through the screen base, is not provided with by the screen base
The bias light in the screen base is incided in the solid side into slice, saturating through the transparent area in the screen base
Penetrate, along with by it is described it is solid into slice reflect the direction outgoing of projected light identical.
It is described solid to be shaped as linear strip or non-linear strip into slice in preferred embodiments of the present invention
Shape.
In preferred embodiments of the present invention, the solid cross sectional shape into slice is triangle or quadrangle or fan
Shape.
In preferred embodiments of the present invention, the multiple solid shape into slice is all identical.
It is the multiple solid solid between slice into two adjacent in slice in preferred embodiments of the present invention
Interval is identical.
In preferred embodiments of the present invention, the transparent area is uniformly arranged in the screen base.
In preferred embodiments of the present invention, it is described it is solid into slice be mixed with diffusion particle transparent organic material system
Into.
In preferred embodiments of the present invention, the visible light transmissivity of the transparent area is more than or equal to 10%.
In preferred embodiments of the present invention, the solid projection light reflection surface and the folder of the screen base into slice
Angle is more than or equal to 0 and less than or equal to 70 °, and the solid imaging bar is coated with the side in the reflecting layer and the screen base
The angle of material is more than or equal to 45 ° and less than or equal to 90 °, and the solid height into slice is more than or equal to described in 0.2 times
The solid width into slice.
Second aspect, the embodiment of the present invention additionally provides a kind of optical projection system, and it is saturating that it includes two-sided viewing as described above
Light projection screen and projector, the screen base that the projector is arranged in the two-sided viewing printing opacity projection screen are provided with
The solid side into slice, the projected light sent by the projector incides described solid into slice, and a portion is thrown
Shadow light solid is reflected and along the direction outgoing away from the screen base, another part projected light is through described by described into slice
It is solid to be incided into slice on reflecting layer, reflected and pass through the screen base, edge and by it is described it is solid into slice reflect
The opposite direction outgoing of projected light, is provided with the solid side into slice by the screen base and incides the screen base
Bias light on material, is transmitted through the transparent area in the screen base, along the projected light identical with passing through the screen base
Direction outgoing, is not provided with the solid side into slice by the screen base and incides background in the screen base
Light, is transmitted through the transparent area in the screen base, along with being gone out by the solid projected light identical direction reflected into slice
Penetrate.
Two-sided viewing printing opacity projection screen provided in an embodiment of the present invention and optical projection system, by the side of screen base
Surface interval setting is multiple solid into slice, and multiple solid intervals between slice in the screen base
Region sets transparent area, and projection screen is divided into for the imaging area of Projection Display and for the transparent area through bias light.Its
In, it is solid into mixed with diffusion particle, it can change the solid index distribution into slice, so that solid imaging in slice
Bar has the ability to the reflection of projected light part, fractional transmission；And the bias light of projection screen both sides is then by screen base
The transparent area of setting, is transmitted to the opposite side up to screen respectively.Compared to the prior art, the two-sided viewing printing opacity that the present invention is provided
Projection screen and optical projection system make the beholder positioned at screen sides to see the projected image on screen, while can
The scene of screen dorsal part is seen by the transparent area being distributed on screen, and the two-way light of projected light and bias light is not interfere with each other,
Being perfectly combined for image information display is realized, is that the beholder of screen sides is each provided with dual visual enjoyment, its structure
Simplify, it is with low cost, can be very good solve large-area displays demand.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be attached to what is used required in embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore is not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
The structural representation for the two-sided viewing printing opacity projection screen that Fig. 1 provides for first embodiment of the invention；
The solid structural representation into slice for the linear strip that Fig. 2 provides for first embodiment of the invention；
The solid structural representation into slice for the non-linear strip that Fig. 3 provides for first embodiment of the invention；
The solid structural representation into slice of second of cross sectional shape that Fig. 4 provides for first embodiment of the invention；
The solid structural representation into slice of the third cross sectional shape that Fig. 5 provides for first embodiment of the invention；
The 4th kind of solid structural representation into slice of cross sectional shape that Fig. 6 provides for first embodiment of the invention；
The 5th kind of solid structural representation into slice of cross sectional shape that Fig. 7 provides for first embodiment of the invention；
The solid structural representation into slice for the multiple section combination of shapes that Fig. 8 provides for first embodiment of the invention；
Fig. 9 is spaced the different solid structural representations into slice for the setting that first embodiment of the invention is provided；
The preferred solid design parameter schematic diagram into slice that Figure 10 provides for first embodiment of the invention；
Figure 11 is attached with the structural representation of transparent organic material for the transparent area that first embodiment of the invention is provided；
The structural representation for the optical projection system that Figure 12 provides for second embodiment of the invention；
The structural representation for another optical projection system that Figure 13 provides for second embodiment of the invention.
Icon：100- screen bases；200- is solid into slice；300- reflecting layer；400- transparent areas；500- projectors；
The two-sided viewing printing opacity projection screens of 1000-；2000- optical projection systems.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.The present invention implementation being generally described and illustrated herein in the accompanying drawings
The component of example can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiments of the invention below to providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model that the present invention is protected
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.
In the description of the invention, it is necessary to explanation, term " in ", " on ", " under ", "left", "right", " interior ", " outer "
Orientation or position relationship Deng instruction are that, based on orientation shown in the drawings or position relationship, or the invention product is used when using
The orientation or position relationship often put, are for only for ease of the description present invention and simplify description, rather than indicate or imply and be signified
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the present invention
Limitation.In addition, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that indicating or implying phase
To importance.
In addition, the term such as term " level ", " vertical ", " pendency " is not offered as requiring part abswolute level or pendency, and
It is to be slightly tilted.As " level " only refers to that its direction, with respect to more level for " vertical ", is not the expression structure
Must be fully horizontal, but can be slightly tilted.
In the description of the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or one
Connect body；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirect by intermediary
It is connected, can is the connection of two element internals.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
In addition, the term such as " input ", " output ", " feedback ", " formation " is understood as describing a kind of optics, electricity change
Or the processing of optics, electricity.As " formation " only refers to optical signal or electric signal by there occurs after the element, instrument or device
Change optically or electrically so that the optical signal or the electric signal are processed, and then obtain implementation technical scheme
Or the signal required for solution technical problem.
In the specific embodiment accompanying drawing of the present invention, for more preferable, clearer description two-sided viewing printing opacity projection screen
The annexation of each several part, is simply substantially distinguished in the operation principle of each element in curtain and optical projection system, performance described device
Relative position relation between each element, can not be constituted to the optical path direction in element or structure, the order of connection and each several part
Structure size, size, the restriction of shape.
First embodiment
Fig. 1 is refer to, a kind of two-sided viewing printing opacity projection screen 1000 is present embodiments provided, it includes screen base
100, a side surface of the screen base 100 be arranged at intervals with it is multiple solid into slice 200, it is described solid into slice 200
Mixed with diffusion particle, the solid side inclined-plane adjacent with the screen base 100 into slice 200 is coated with reflecting layer 300,
Multiple solid interval regions between slice 200 in the screen base 100 are provided with transparent area 400.
Two-sided viewing printing opacity projection screen 1000 in the present embodiment is when being shown as picture, and projected light is by the screen base
100, which are provided with the solid side into slice 200, incides described solid into slice 200, a portion projected light quilt
It is described it is solid reflected into slice 200 and along away from the screen base 100 direction outgoing；Another part projected light is through described
It is solid to be incided into slice 200 on the reflecting layer 300, reflected and through the screen base 100, edge and by described solid
Into the opposite direction outgoing of the projected light of the reflection of slice 200.It is provided with by the screen base 100 described solid into slice 200
Side incide bias light in the screen base 100, transmitted through the transparent area 400 in the screen base 100, along with
Through the projected light identical direction outgoing of the screen base 100；By the screen base 100 be not provided with it is described it is solid into
The bias light in the screen base 100 is incided in the side of slice 200, saturating through the transparent area 400 in the screen base 100
Penetrate, along with by the solid projected light identical direction outgoing reflected into slice 200.
It is understood that the screen base 100, which is not provided with the solid side into slice 200, can be regarded as this reality
Apply example offer two-sided viewing printing opacity projection screen 1000 front (or rear), and the screen base 100 be provided with it is solid
The rear (or front) of two-sided viewing printing opacity projection screen 1000 is can be regarded as into the side of slice 200.
On the one hand, when the eyes of observer are located at the front of two-sided viewing printing opacity projection screen 1000 and just to the back projection
During printing opacity projection screen 1000, observer can either see to be reflected and through screen base by the solid reflecting layer 300 into slice 200
The projected light that material 100 is transmitted, is projected while can be seen by the transparent area 400 in screen base 100 again by back projection printing opacity
The bias light of the scene transmitting (or reflection) at the rear of screen 1000；On the other hand, when the eyes of observer are located at two-sided viewing
The rear of printing opacity projection screen 1000 and during just to the two-sided viewing printing opacity projection screen 1000, observer can either be seen by reality
The projected light that the heart reflects into slice 200, while can be seen by the transparent area 400 in screen base 100 by two-sided viewing again
The bias light of the scene transmitting (or reflection) in the front of printing opacity projection screen 1000.I.e. no matter observer is located at the front of screen also
It is rear, can sees simultaneously before screen (relative with observer position after the projected image and screen of (side of observer)
Opposite side) scene (image that in kind, performance or other display equipment are shown), realize screen sides rich in stereovision
The dual display of forward and backward scape.
It refer in Fig. 2 and Fig. 3, the present embodiment, the solid shape into slice 200 can be rib as shown in Figure 2
While being that the linear strip or seamed edge as shown in Figure 3 of straight line are the non-linear strip of curve.
It is multiple solid institute to be distributed in the linear strip or non-linear strip that are parallel to each other into slice 200 in the present embodiment
State a side surface of screen base 100.It is understood that it is described it is solid can be parallel to screen base 100 into slice 200
Certain is while setting, can also at an angle be set on one side with certain of the screen base 100.
In the present embodiment, the multiple solid shape into slice 200 is all identical.Particularly, it is distributed in screen base
Multiple solid shapes into slice 200 on 100 surfaces can also be incomplete same, for example, can be linear strip and non-
Any combination of linear strip.It is understood that when the multiple solid shape into slice 200 is all identical, screen
Projection imaging area on curtain base material 100 is evenly distributed, and (projection photoimaging) effect is imaged with preferable prospect.
It refer in Fig. 1, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, the present embodiment, the solid cross sectional shape into slice 200 can be with
It is diversified, can is non-parallel quadrangle as shown in Figure 1, can be right-angled trapezium as shown in Figure 4, can is such as figure
Right angled triangle shown in 5, can be fan-shaped or as shown in Figure 7 acute triangle as shown in Figure 6, or other
The polygon being made up of a plurality of straight line or curved side.It is understood that the solid length of side, the angle into the section of slice 200
It can be designed according to specific application environment, to realize optimal display effect in the application environment.
Particularly, the solid shape into the reflecting layer 300 coated on the surface of slice 200 can be according to solid into slice
200 shape is designed accordingly.For example shown in Fig. 7, the thickness in reflecting layer 300 is from screen base 100 to solid imaging
Bar 200 it is gradually thinning foremost, this be designed to ensure reflecting layer 300 gathered around under the solid structure into slice 200 shown in Fig. 7
There is preferably projected light imaging capability.
Fig. 8 is refer to, as a kind of specific embodiment, multiple solid cutting into slice 200 in screen base 100
Face shape can be incomplete same, such as the combination of quadrangle and triangle in Fig. 8.It should be noted that being shown in Fig. 8
The combination of simply all possible different cross section shape one of which, it is possibility to have the combination of other shapes.
In the present embodiment, it is the multiple it is solid can into two solid intervals between slice 200 adjacent in slice 200
To be identical (refer to Fig. 1) or different (refer to Fig. 9).Likewise, simply all shown in Fig. 9 can
Can the solid structure into slice 200 set with different interval in one kind or the knot that is spaced apart otherwise
Structure.
In the present embodiment, the transparent area 400 can be uniformly arranged in the screen base 100, can also be uneven
Be arranged in the screen base 100, width, the area of the transparent area 400 can be according to the solid distributions into slice 200
Structure is designed accordingly.
Particularly, the solid spacing distance between slice 200 needs not be equal to the width of transparent area 400, adjacent two
The width of the individual solid transparent area 400 between slice 200 is not more than the two solid spacing distances between slice 200.
In the present embodiment, by solid into doping diffusion particle in slice 200, thus it is possible to vary it is solid into the material of slice 200
The index distribution of material, makes the solid function having into slice 200 to the reflection of projected light part, fractional transmission, makes solid imaging
The projection light reflection surface of bar 200 has light splitting effect, and then realizes that part is reflected or scattering (diffusing reflection), fractional transmission projected light
Function.
In the present embodiment, the screen base 100 sets a solid side surface into slice 200 to pre-set coloring
Diffusion layer, it is solid into slice 200 in order to make.Solid can be used into slice 200 has mixed with the transparent of diffusion particle
Machine material makes shaping, it is preferred that made using the high transmissive optical resin or heat reactive resin mixed with diffusion particle, can be first in screen
Wet film is coated with curtain base material 100, then is molded by mould, finally by curing molding.Comprise the following steps that：
1) it is coated with wet film：Can be in the screen base 100 made coloring diffusion layer surface coating mixed with
The optical resin or heat reactive resin of diffusion particle, can also complete to pass through after the solid structure into slice 200 in coating, then will
It is solid laminating by transparent glue and coloring diffusion layer in screen base 100 into the structure of slice 200.
2) it is molded：Can be first according to the specific solid shape and structure into slice 200 of projector equipment parameter designing, then with precision
The mould of the machine tooling shape, mould is usually cylinder mould.
3) curing molding：Coating wet film after molding is irradiated or heated with ultraviolet and carries out curing molding.
In the present embodiment, the solid reflecting layer 300 into slice 200 can be made by metal material, and it can
Made by techniques such as printing, spraying, coating or evaporations, thickness is at 0.1 μm or so, and its reflecting surface has high visible reflectivity,
For reflective projection light.
In the present embodiment, the solid reflecting layer 300 into the side surface of slice 200 1 is arranged on away from described solid into slice
200 side, can set light absorbent, and the light absorbent visible-light absorptivity is more than or equal on 10%, i.e. reflecting layer 300
The absorbing ability maximum in the extinction face relative with reflecting surface can be 100% extinction, and minimum can be 10% extinction.Reflecting layer
The extinction face of 300 dorsal parts can absorb the ambient light and other veiling glares that the back side of reflecting layer 300 is incided from other directions, enhance
The anti-light ability of screen, it is to avoid interference of the ambient light to projected light, improves projection imaging effect.
In the present embodiment, the transparent area 400 in screen base 100 can be all-transparent or coloring or non-
All-transparent.It is preferred that, the visible light transmissivity of the transparent area 400 is more than or equal to 10%.
Refer in Figure 10, the present embodiment, it is preferred that it is described it is solid into slice 200 be used for reflective projection light surface and
The angle of the screen base 100 is α, described solid to be coated with the side in the reflecting layer 300 and the screen into slice 200
The angle of base material 100 is β, and the solid height into slice 200 is H, and the solid width into slice 200 is P, wherein, 0
≤ α≤70 °, 45 °≤β≤90 °, H >=0.2P.It show only in Figure 10 when the solid section into slice 200 is quadrangle
A kind of situation, it is to be understood that when the solid section into slice 200 is other shapes, can still meet above-mentioned relational expression.
In the present embodiment, former and later two surfaces and screen base with air contact of transparent area 400 in screen base 100
Material 100 keeps minute surface and high finish as far as possible with the solid interface into slice 200, so that beholder can be through screen
Curtain sees clearly background as far as possible.But the reason for being due to method of manufacturing technology, as shown in figure 11, may in transparent area 400
Have one layer of solid material into slice 200 to be attached to above, influence the light transmittance of transparent area 400, such case is allowed.This
The situation of kind falls within the scope of the technology of the present invention, within the scope of the present invention.
The two-sided viewing printing opacity projection screen 1000 that the present embodiment is provided can make the beholder for being located at screen sides can
Enough see the perspective view of the perfect imaging display in the solid projection imaging area constituted into slice 200 and reflecting layer 300 on screen
Picture, while the scene of screen opposite side can be seen by the transparent area 400 being distributed in screen base 100, and projected light and
This two classes image information of bias light is not interfere with each other, and can reach that the perfection of image information is melted by the visual lag of human eye
Close, people is just watched the picture rich in stereovision before same screen, realize abundant visual effect.
Second embodiment
Figure 12 is refer to, a kind of optical projection system 2000 is present embodiments provided, it includes providing in above-mentioned first embodiment
Two-sided viewing printing opacity projection screen 1000 and projector 500.The projector 500 is arranged on the two-sided viewing printing opacity projection
Screen base 100 in screen 1000 is provided with the solid side into slice 200.
In the present embodiment, when observer stands the unilateral observation screen in projector 500, sent by the projector 500
Projected light incide described solid into slice 200, a portion projected light is reflected and along away from the screen base
100 direction outgoing, is eventually arrived in observer's eye of the side of projector 500；And solid imaging is not provided with by screen
The bias light that the scene of the side of bar 200 is sent is incided in the screen base 100, through the printing opacity in the screen base 100
Area 400 is transmitted (refraction), along with by the solid projected light identical direction outgoing reflected into slice 200, final also observed person
It is observed.
In the present embodiment, when observer stands the opposite side view screen in the screen relative with projector 500, by projecting
The projected light that machine 500 is sent incide it is described solid into slice 200, wherein the part transmitted incides the reflecting layer
On 300, reflected and by the screen base 100, eventually arrived in observer's eye of screen opposite side；And by projecting
The bias light that the scene of the side of machine 500 is sent is incided in the screen base 100, through the printing opacity in the screen base 100
Area 400 is transmitted (refraction), and along the projected light identical direction outgoing with being reflected by reflecting layer 300, finally also observed person is seen
Observe.
It is understood that the projector 500 be arranged on it is solid into the reflecting layer 300 in slice 200 it is relative one
Side, such as shown in Figure 12, reflecting layer 300 is arranged on the solid top into slice 200, and now projector 500 is arranged on screen
The obliquely downward of curtain, is directly incident on the back side light absorbent in reflecting layer 300 with the projected light for avoiding the outgoing of projector 500 and is inhaled
Receive.Likewise, as shown in Figure 13, when reflecting layer 300 is arranged on the solid lower inclined plane into slice 200, projector 500 can
To be arranged on the oblique upper of screen.Similarly, when reflecting layer 300 is arranged on solid side into slice 200, projector 500 can
To be arranged on the opposite side relative with reflecting layer 300.
In the present embodiment, the projector 500 can be off-axis short focus projector 500, and its off-axis degree is more than 100%, thoroughly
Penetrate than less than 0.5.
The solid angle into the inclined-plane of slice 200 and transparent area 400 in screen base 100 in the present embodiment is by projecting
The parameter (projector 500 and the relative position of screen or the direction of projected light outgoing) and folding, the reflectivity of material of machine 500 are determined
It is fixed, finally cause projector 500 to incide the different solid projected lights into slice 200 with different angles, through solid imaging
The part that the part and reflected layer 300 that bar 200 reflects are reflected, is concentrated so that the direction of normal to screen is parallel or less parallel
Project, with the Projection Display effect being optimal.
In summary, two-sided viewing printing opacity projection screen provided in an embodiment of the present invention and optical projection system, by screen
One side surface of base material is arranged at intervals multiple solid into slice and multiple described solid into slice in the screen base
Between interval region transparent area is set, projection screen is divided into for the imaging area of Projection Display and for through bias light
Transparent area.Wherein, it is solid into mixed with diffusion particle, it can change the solid index distribution into slice in slice, so that
Obtain the solid ability having into slice to the reflection of projected light part, fractional transmission；And the bias light of projection screen both sides then passes through
The transparent area set in screen base, is transmitted to the opposite side up to screen respectively.Compared to the prior art, what the present invention was provided is double
Printing opacity projection screen and optical projection system are watched in face makes the beholder positioned at screen sides to see the projected image on screen,
The scene of screen dorsal part, and the two-way light of projected light and bias light can be seen by the transparent area being distributed on screen simultaneously
It does not interfere with each other, realizes being perfectly combined for image information display, is that the beholder of screen sides is each provided with dual vision and enjoyed
Simplified by, its structure, it is with low cost, can be very good to solve the demand of large-area displays.It the foregoing is only the excellent of the present invention
Embodiment is selected, is not intended to limit the invention, for those skilled in the art, the present invention there can be various changes
And change.Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in this
Within the protection domain of invention.
Claims (10)
1. a kind of two-sided viewing printing opacity projection screen, it is characterised in that including screen base, a side surface of the screen base
Be arranged at intervals with it is multiple solid into slice, it is described it is solid into slice mixed with diffusion particle, it is described solid into slice and the screen
The side inclined-plane of curtain base material adjacent is coated with multiple solid intervals between slice in reflecting layer, the screen base
Region is provided with transparent area,
Projected light by the screen base be provided with the solid side into slice incide it is described solid into slice,
A portion projected light by it is described it is solid into slice reflect and along away from the screen base direction outgoing,
Another part projected light through it is described it is solid incided into slice on the reflecting layer, reflect and transmission the screen base
Material, edge with by the solid opposite direction outgoing of projected light reflected into slice,
The solid side into slice is provided with by the screen base and incides bias light in the screen base, through institute
The transparent area transmission in screen base is stated, along the projected light identical direction outgoing with passing through the screen base,
The solid side into slice is not provided with by the screen base and incides bias light in the screen base, warp
In the screen base transparent area transmission, along with by it is described it is solid into slice reflect the direction outgoing of projected light identical.
2. two-sided viewing printing opacity projection screen according to claim 1, it is characterised in that the solid shape into slice
For linear strip or non-linear strip.
3. two-sided viewing printing opacity projection screen according to claim 1, it is characterised in that the solid section into slice
It is shaped as triangle or quadrangle or sector.
4. two-sided viewing printing opacity projection screen according to claim 1, it is characterised in that the multiple solid into slice
Shape is all identical.
5. two-sided viewing printing opacity projection screen according to claim 1, it is characterised in that the multiple solid into slice
Adjacent two are solid identical into the interval between slice.
6. two-sided viewing printing opacity projection screen according to claim 1, it is characterised in that the transparent area is uniformly arranged on
In the screen base.
7. two-sided viewing printing opacity projection screen according to claim 1, it is characterised in that it is described it is solid into slice be mixed with
The transparent organic material of diffusion particle is made.
8. two-sided viewing printing opacity projection screen according to claim 1, it is characterised in that the visible ray of the transparent area is saturating
Rate is crossed more than or equal to 10%.
9. two-sided viewing printing opacity projection screen according to claim 1, it is characterised in that the solid projection into slice
Light reflection surface and the angle of the screen base are more than or equal to 0 and less than or equal to 70 °, and the solid imaging bar is coated with institute
State the side in reflecting layer and the angle of the screen base is more than or equal to 45 ° and less than or equal to 90 °, it is described solid into slice
Height be more than or equal to 0.2 times of solid width into slice.
10. a kind of optical projection system, it is characterised in that including the two-sided viewing printing opacity projection as described in any one of claim 1 to 9
Screen and projector, the screen base that the projector is arranged in the two-sided viewing printing opacity projection screen be provided with it is solid into
The side of slice,
The projected light sent by the projector incide it is described solid into slice,
A portion projected light by it is described it is solid into slice reflect and along away from the screen base direction outgoing,
Another part projected light through it is described it is solid incided into slice on reflecting layer, reflect and transmission the screen base,
Edge with by the solid opposite direction outgoing of projected light reflected into slice,
The solid side into slice is provided with by the screen base and incides bias light in the screen base, through institute
The transparent area transmission in screen base is stated, along the projected light identical direction outgoing with passing through the screen base,
The solid side into slice is not provided with by the screen base and incides bias light in the screen base, warp
In the screen base transparent area transmission, along with by it is described it is solid into slice reflect the direction outgoing of projected light identical.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710760641.0A CN107315314B (en) | 2017-08-29 | 2017-08-29 | Light-transmitting projection screen capable of being watched on two sides and projection system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710760641.0A CN107315314B (en) | 2017-08-29 | 2017-08-29 | Light-transmitting projection screen capable of being watched on two sides and projection system |
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| CN107315314A true CN107315314A (en) | 2017-11-03 |
| CN107315314B CN107315314B (en) | 2023-02-10 |
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| CN107315314B (en) | 2023-02-10 |
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