CN107329360A - Orthographic projection printing opacity projection screen and optical projection system - Google Patents
Orthographic projection printing opacity projection screen and optical projection system Download PDFInfo
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- CN107329360A CN107329360A CN201710760991.7A CN201710760991A CN107329360A CN 107329360 A CN107329360 A CN 107329360A CN 201710760991 A CN201710760991 A CN 201710760991A CN 107329360 A CN107329360 A CN 107329360A
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- extinction
- screen
- grizzly bar
- projection
- printing opacity
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- 230000003287 optical effect Effects 0.000 title claims abstract description 17
- 230000008033 biological extinction Effects 0.000 claims abstract description 109
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- 230000009977 dual effect Effects 0.000 abstract description 4
- 230000004313 glare Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000000007 visual effect Effects 0.000 abstract description 4
- 238000003384 imaging method Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 238000002835 absorbance Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000976 ink Substances 0.000 description 3
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- 230000015572 biosynthetic process Effects 0.000 description 2
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- 230000031700 light absorption Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 241000826860 Trapezium Species 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
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Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
- G03B21/62—Translucent screens
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Overhead Projectors And Projection Screens (AREA)
Abstract
The invention provides a kind of orthographic projection printing opacity projection screen and optical projection system, it is related to projection display technique field.The orthographic projection printing opacity projection screen includes screen base, one side surface of the screen base is arranged at intervals with multiple extinction grizzly bars, interval region between multiple extinction grizzly bars that the side of the extinction grizzly bar is coated with diffusing reflection layer, the screen base is provided with transparent area.Relative to prior art, the projection screen that the present invention is provided makes beholder to see the projected image shown on diffusing reflection layer, the scene after screen back can be seen by the transparent area being distributed on screen again, 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.Meanwhile, extinction grizzly bar can effectively absorb ambient light and other veiling glares, greatly enhance the anti-light ability of screen, improve the contrast of display picture.
Description
Technical field
The present invention relates to projection display technique field, in particular to a kind of orthographic projection printing opacity projection screen and projection
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 orthographic projection printing opacity projection screen and optical projection system, it can be effectively improved
State problem.
What embodiments of the invention were realized in：
In a first aspect, the embodiments of the invention provide a kind of orthographic projection printing opacity projection screen, it includes screen base, described
One side surface of screen base is arranged at intervals with multiple extinction grizzly bars, and the side of the extinction grizzly bar is coated with diffusing reflection layer, institute
The interval region stated between multiple extinction grizzly bars in screen base is provided with transparent area, and projected light is by the screen base
Side incide on diffusing reflection layer, reflect and along the direction outgoing of the remote screen base, bias light is by described
The opposite side of screen base is incided in the screen base, through in the screen base transparent area transmit, and along with it is anti-
The projected light identical direction outgoing penetrated.
In preferred embodiments of the present invention, the extinction grizzly bar is shaped as linear strip or non-linear strip.
In preferred embodiments of the present invention, the cross sectional shape of the extinction grizzly bar is triangle or quadrangle or sector.
In preferred embodiments of the present invention, a side surface completely or partially coating diffusing reflection of the extinction grizzly bar
Layer.
In preferred embodiments of the present invention, the interval in the multiple extinction grizzly bar between two adjacent extinction grizzly bars
It 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, the side of the extinction grizzly bar is coated with single or multiple lift diffusing reflection layer.
In preferred embodiments of the present invention, the visible-light absorptivity of the extinction grizzly bar is described more than or equal to 10%
The visible light transmissivity of transparent area is more than or equal to 10%.
In preferred embodiments of the present invention, the extinction grizzly bar is coated with the side of the diffusing reflection layer and the screen
The angle of base material is more than or equal to 0 and less than or equal to 70 °, the side of the uncoated diffusing reflection layer of extinction grizzly bar and institute
The angle for stating screen base is more than or equal to 45 ° and less than or equal to 90 °, and the height of the extinction grizzly bar is more than or equal to 0.2
The width of the extinction grizzly bar again.
Second aspect, the embodiment of the present invention additionally provides a kind of optical projection system, and it includes orthographic projection printing opacity as described above
Projection screen and projector, the screen base that the projector is arranged in the orthographic projection printing opacity projection screen are provided with extinction
The side of grizzly bar, the projected light sent by the projector is incided on the diffusing reflection layer set on the extinction grizzly bar, anti-
Penetrate and along the direction outgoing away from the screen base, bias light incides the screen base by the opposite side of the screen base
On material, transmitted through the transparent area in the screen base, and along the projected light identical direction outgoing with being reflected.
Orthographic projection printing opacity projection screen provided in an embodiment of the present invention and optical projection system, pass through the side table in screen base
Face is arranged at intervals multiple extinction grizzly bars, and in the side coating diffusing reflection layer of extinction grizzly bar, and in the screen base
Interval region between multiple extinction grizzly bars sets transparent area, by projection screen be divided into for Projection Display imaging area and
For the transparent area through bias light.Wherein, the diffusing reflection layer that extinction grizzly bar side is set can be reflected in front of projection screen
Incident projected light；And the bias light of projection screen behind is then by the transparent area set in screen base, with reflected
Projected light identical direction is transmitted to the front of screen.Meanwhile, the extinction grizzly bar can effectively absorb ambient light and other
The anti-light ability of veiling glare, greatly enhancing screen, improves the contrast of display picture.Compared to the prior art, the present invention is carried
The orthographic projection printing opacity projection screen and optical projection system of confession make beholder to see the projection of the diffusing reflection layer reflection on screen
Image, can see the scene after screen back, and the two-way light of projected light and bias light by the transparent area being distributed on screen again
Line is not interfere with each other, and realizes being perfectly combined for image information display, and dual visual enjoyment is provided for beholder, its structure essence
It is simple, with low cost, it can be very good to solve the demand that large area prospect is shown.
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 orthographic projection printing opacity projection screen that Fig. 1 provides for first embodiment of the invention；
The structural representation of the extinction grizzly bar for the linear strip that Fig. 2 provides for first embodiment of the invention；
The structural representation of the extinction grizzly bar for the non-linear strip that Fig. 3 provides for first embodiment of the invention；
The structural representation for second of cross sectional shape extinction grizzly bar that Fig. 4 provides for first embodiment of the invention；
The structural representation for the third cross sectional shape extinction grizzly bar that Fig. 5 provides for first embodiment of the invention；
The structural representation for the 4th kind of cross sectional shape extinction grizzly bar that Fig. 6 provides for first embodiment of the invention；
The structural representation for the 5th kind of cross sectional shape extinction grizzly bar that Fig. 7 provides for first embodiment of the invention；
The structural representation of the extinction grizzly bar for the multiple section combination of shapes that Fig. 8 provides for first embodiment of the invention；
Fig. 9 is spaced the structural representation of different extinction grizzly bars for the setting that first embodiment of the invention is provided；
Figure 10 is provided with the structural representation of the screen base of extinction grizzly bar for the dorsal part that first embodiment of the invention is provided；
The structural representation of the extinction grizzly bar for the part coating diffusing reflection layer that Figure 11 provides for first embodiment of the invention；
The structural representation for the extinction grizzly bar for being coated with multilayer diffusing reflection layer that Figure 12 provides for first embodiment of the invention；
The design parameter schematic diagram for the preferred extinction grizzly bar that Figure 13 provides for first embodiment of the invention；
The structural representation for the optical projection system that Figure 14 provides for second embodiment of the invention.
Icon：100- screen bases；200- extinction grizzly bars；220- light-absorption layers；300- diffusing reflections layer；400- transparent areas；
500- projectors；1000- orthographic projection printing opacity projection screens；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 orthographic projection printing opacity projection screen
And in optical projection system each element operation principle, the annexation of each several part, has simply substantially distinguished each in performance described device
Relative position relation between element, can not be constituted to the optical path direction in element or structure, the order of connection and each several part knot
Structure size, size, the restriction of shape.
First embodiment
Fig. 1 is refer to, a kind of orthographic projection printing opacity projection screen 1000 is present embodiments provided, it includes screen base 100,
One side surface of the screen base 100 is arranged at intervals with multiple extinction grizzly bars 200, the side coating of the extinction grizzly bar 200
There is the interval region between multiple extinction grizzly bars 200 in diffusing reflection layer 300, the screen base 100 to be provided with printing opacity
Area 400.
Orthographic projection printing opacity projection screen 1000 in the present embodiment is when being shown as picture, and projected light is by the screen base
100 side is incided on diffusing reflection layer 300, reflect and along the direction outgoing of the remote screen base 100；Background
Light is incided in the screen base 100 by the opposite side of the screen base 100, through the printing opacity in the screen base 100
Area 400 is transmitted, and along the projected light identical direction outgoing with being reflected.
It is understood that the side that the screen base 100 is provided with extinction grizzly bar 200 can be regarded as the present embodiment
The front (or observation side) of the orthographic projection printing opacity projection screen 1000 of offer, and the screen base 100 is not provided with extinction grid
The side of bar 200 can be regarded as the rear (or background side) of orthographic projection printing opacity projection screen 1000.When the eyes position of observer
During in the front of orthographic projection printing opacity projection screen 1000 and just to the orthographic projection printing opacity projection screen 1000, observer can either see
To the projected light of the reflection of diffusing reflection layer 300 on extinction grizzly bar 200, while again can be by the printing opacity in screen base 100
See by the bias light of the scene transmitting (or reflection) at the rear of orthographic projection printing opacity projection screen 1000, i.e. observer's energy in area 400
Enough projected images seen simultaneously in front of screen and the scene at the screen rear (figure that in kind, performance or other display equipment are shown
Picture), realize the dual display of forward and backward scape rich in stereovision.
It refer in Fig. 2 and Fig. 3, the present embodiment, the shape of the extinction grizzly bar 200 can be seamed edge as shown in Figure 2
For straight line linear strip or seamed edge as shown in Figure 3 be curve non-linear strip.
In the present embodiment, multiple extinction grizzly bars 200 are distributed in described with the linear strip or non-linear strip that are parallel to each other
The observation side surface (preceding surface) of screen base 100.It is understood that the extinction grizzly bar 200 can be parallel to screen base
Certain of material 100 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 shape of the multiple extinction grizzly bar 200 is all identical.Particularly, it is distributed in screen base 100
The shape of multiple extinction grizzly bars 200 on surface can also be incomplete same, for example, can be linear strip and non-linear
Any combination of strip.It is understood that when the shape of the multiple extinction grizzly bar 200 is all identical, screen base
Prospect imaging area on 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 cross sectional shape of the extinction grizzly bar 200 can be
It is diversified, it can be non-parallel quadrangle as shown in Figure 1, can be right-angled trapezium as shown in Figure 4, can be such as Fig. 5
Shown right angled triangle, can be fan-shaped or as shown in Figure 7 acute triangle as shown in Figure 6, or other by
The polygon that a plurality of straight line or curved side are constituted.It is understood that the length of side, the angle in the section of extinction grizzly bar 200
It is designed according to specific application environment, to realize optimal display effect in the application environment.
Particularly, the shape of the diffusing reflection layer 300 coated on the surface of extinction grizzly bar 200 can be according to extinction grizzly bar
200 shape is designed accordingly.For example shown in Fig. 7, the thickness of diffusing reflection layer 300 is from screen base 100 to extinction grid
Bar 200 it is gradually thinning foremost, this is designed to ensure that diffusing reflection layer 300 is gathered around under the structure of extinction grizzly bar 200 shown in Fig. 7
There is preferably imaging effect.
Fig. 8 is refer to, as a kind of specific embodiment, the section of multiple extinction grizzly bars 200 in screen base 100
Shape can be incomplete same, such as the combination of fan-shaped and triangle in Fig. 8.It should be noted that shown in Fig. 8 only
It is the one of which of all possible different cross section shape combination, it is possibility to have the combination of other shapes.
In the present embodiment, the interval in the multiple extinction grizzly bar 200 between two adjacent extinction grizzly bars 200 can be
Identical (refer to Fig. 1) or different (refer to Fig. 9).Likewise, simply all possible shown in Fig. 9
One kind in the structure of extinction grizzly bar 200 set with different interval or the structure being spaced apart otherwise.
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, the width of the transparent area 400, area can be according to the distribution knots of extinction grizzly bar 200
Structure is designed accordingly.
Particularly, the spacing distance between extinction grizzly bar 200 needs not be equal to the width of transparent area 400, adjacent two
The width of transparent area 400 between extinction grizzly bar 200 is not more than the spacing distance between the two extinction grizzly bars 200.
Accordingly, the extinction area in absorbance region, screen base 100 can also be arranged at intervals in the screen base 100
Domain does not influence the projection imaging in front of screen, can only influence between the imaging of the bias light at screen rear, adjacent absorbance region
Interval can be transparent area 400 width, the position of absorbance region can be corresponding with the position of extinction grizzly bar 200.It can manage
Solution, the absorbance region in the screen base 100 can be the structure of screen base 100 itself or by it
His form is arranged on the light-absorption layer 220 (refer to Figure 10) being made by light absorbent of the dorsal part of screen base 100.
In the present embodiment, the extinction grizzly bar 200 can be that black light-absorbing material is made, and its visible-light absorptivity is big
Can be 100% extinction in or equal to the absorbing ability maximum of 10%, i.e. extinction grizzly bar 200, minimum can be 10% extinction.Inhale
Gratings strips 200 can absorb small part and incide projected light on extinction grizzly bar 200, and be incided from other directions on screen
Ambient light and other veiling glares, enhance the anti-light ability of screen, improve 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%.
In the present embodiment, a side surface of the extinction grizzly bar 200 can all coat diffusing reflection layer 300 and (refer to figure
1) diffusing reflection 300 (refer to Figure 11) of layer, can also partly be coated.Can it is understood that being one kind shown in Figure 11
The structure of the part coating diffusing reflection layer 300 of energy, can also be other part coated forms.
In the present embodiment, the side of the extinction grizzly bar 200 can be coated with individual layer diffusing reflection 300 (refer to Fig. 1) of layer,
Multilayer diffusing reflection 300 (refer to Figure 12) of layer can also be coated with.For example, one can be first coated with the side of extinction grizzly bar 200
Layer silver inks reflecting layer, then coating white ink layer reflecting layer etc. on the silver inks reflecting layer.
It refer in Figure 13, the present embodiment, it is preferred that the extinction grizzly bar 200 is coated with the side of the diffusing reflection layer 300
The angle of face (imaging surface) and the screen base 100 is α, the side of the uncoated diffusing reflection layer 300 of extinction grizzly bar 200
The angle of face (interference surface) and the screen base 100 is β, and the height of the extinction grizzly bar 200 is H, the extinction grizzly bar 200
Width be P, wherein, 0≤α≤70 °, 45 °≤β≤90 °, H >=0.2P.Cutting when extinction grizzly bar 200 is show only in Figure 11
A kind of situation when face is triangle, it is to be understood that when the section of extinction grizzly bar 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
The interface of material 100 and extinction grizzly bar 200 keeps minute surface and high finish as far as possible, so that beholder can pass through screen
See clearly background as far as possible.But the reason for being due to method of manufacturing technology, one layer of extinction grid are might have in transparent area 400
The material of bar 200 is attached to above, influences the light transmittance of transparent area 400, and such case is allowed.Such case falls within this hair
The scope of bright technology, within the scope of the present invention.
The orthographic projection printing opacity projection screen 1000 that the present embodiment is provided can make to be located at the projection image information in front of screen
The perfect imaging display on the diffusing reflection layer 300 of the side of extinction grizzly bar 200, while making the scene after screen back also can be by screen
Transparent area 400 on curtain base material 100 enters the sight of observer through screen, and this two classes image information is not interfere with each other, and energy
Being perfectly combined for image information is enough reached by the visual lag of human eye, people is just watched richness before same screen
The picture having a sense of hierarchy, realizes abundant visual effect.
Second embodiment
Figure 14 is refer to, a kind of optical projection system 2000 is present embodiments provided, it includes providing in above-mentioned first embodiment
Orthographic projection printing opacity projection screen 1000 and projector 500.The projector 500 is arranged on the orthographic projection printing opacity projection screen
Screen base 100 in 1000 is provided with the side of extinction grizzly bar 200.
In the present embodiment, on the one hand, sent by the projector 500 for being arranged on the side of screen base 100 (front)
Projected light is incided on the diffusing reflection layer 300 set on extinction grizzly bar 200, reflect and along the remote screen base 100
Direction outgoing, is eventually arrived in observer's eye；On the other hand, the bias light that scene is sent after screen back is by the screen base
100 opposite side (back side) is incided in the screen base 100, is transmitted through the transparent area 400 in the screen base 100
(refraction), and along the projected light identical direction outgoing with being reflected, finally also observed by observed person.
It is understood that the projector 500 is arranged on and the diffusing reflection layer 300 close one on extinction grizzly bar 200
Side, such as shown in Figure 14, diffusing reflection layer 300 is obliquely installed downward, now projector 500 be arranged on screen it is oblique under
Side, so that the projected light of the outgoing of projector 500 is directly incident on diffusing reflection layer 300.Likewise, working as diffusing reflection layer 300 upward
When side is obliquely installed, projector 500 can be arranged on the oblique upper of screen；When diffusing reflection layer 300 is arranged on extinction grizzly bar 200
During side, projector 500 can be arranged on and 300 relative side of diffusing reflection layer.
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 inclined-plane of the extinction grizzly bar 200 in screen base 100 in the present embodiment and the angle of transparent area 400 are by projector
500 parameter (relative position or the direction of projected light outgoing of the projector 500 with screen) and folding, the reflectivity decision of material,
Finally so that projector 500 with different angles incide diffusing reflection layer 300 on projected light through diffusing reflection layer 300 reflection after, collection
In so that the direction of normal to screen is parallel or less parallel is projected, with the Projection Display effect being optimal.
In summary, orthographic projection printing opacity projection screen provided in an embodiment of the present invention and optical projection system, by screen base
One side surface of material is arranged at intervals multiple extinction grizzly bars, and in the side coating diffusing reflection layer of extinction grizzly bar, and in the screen
The interval region between multiple extinction grizzly bars on curtain base material sets transparent area, and projection screen is divided into for Projection Display
Imaging area and for through bias light transparent area.Wherein, the diffusing reflection layer that extinction grizzly bar side is set can be reflected from throwing
Incident projected light in front of shadow screen；And the bias light of projection screen behind is then by the transparent area set in screen base, with
The front of screen is transmitted to the projected light identical direction reflected.Meanwhile, the extinction grizzly bar can effectively absorb ring
The anti-light ability of border light and other veiling glares, greatly enhancing screen, improves the contrast of display picture.With prior art phase
Than the orthographic projection printing opacity projection screen and optical projection system that the present invention is provided make beholder to see the diffusing reflection layer on screen
The projected image of reflection, can see the scene after screen back, and projected light and background by the transparent area being distributed on screen again
The two-way light of light is not interfere with each other, and realizes being perfectly combined for image information display, and providing dual vision for beholder enjoys
Simplified by, its structure, it is with low cost, can be very good to solve the demand that large area prospect is shown.It the foregoing is only the present invention
Preferred embodiment, be not intended to limit the invention, for those skilled in the art, the present invention can have various
Change and change.Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., all should be included
Within protection scope of the present invention.
Claims (10)
1. a kind of orthographic projection printing opacity projection screen, it is characterised in that including screen base, between a side surface of the screen base
Every being provided with multiple extinction grizzly bars, the side of the extinction grizzly bar is coated with multiple institutes in diffusing reflection layer, the screen base
The interval region stated between extinction grizzly bar is provided with transparent area,
Projected light is incided on the diffusing reflection layer by the side of the screen base, is reflected and along away from the screen base
Direction outgoing,
Bias light is incided in the screen base by the opposite side of the screen base, through the transparent area in the screen base
Transmission, and along the projected light identical direction outgoing with being reflected.
2. orthographic projection printing opacity projection screen according to claim 1, it is characterised in that the extinction grizzly bar is shaped as line
Property strip or non-linear strip.
3. orthographic projection printing opacity projection screen according to claim 1, it is characterised in that the cross sectional shape of the extinction grizzly bar
For triangle or quadrangle or sector.
4. orthographic projection printing opacity projection screen according to claim 1 a, it is characterised in that side surface of the extinction grizzly bar
All or part of coating diffusing reflection layer.
5. orthographic projection printing opacity projection screen according to claim 1, it is characterised in that adjacent in the multiple extinction grizzly bar
Two extinction grizzly bars between interval it is identical.
6. orthographic projection printing opacity projection screen according to claim 1, it is characterised in that the transparent area is uniformly arranged on institute
State in screen base.
7. orthographic projection printing opacity projection screen according to claim 1, it is characterised in that the side coating of the extinction grizzly bar
There is single or multiple lift diffusing reflection layer.
8. orthographic projection printing opacity projection screen according to claim 1, it is characterised in that the visible ray of the extinction grizzly bar is inhaled
Yield is more than or equal to 10%, and the visible light transmissivity of the transparent area is more than or equal to 10%.
9. orthographic projection printing opacity projection screen according to claim 1, it is characterised in that the extinction grizzly bar is coated with described
The side of diffusing reflection layer and the angle of the screen base are more than or equal to 0 and less than or equal to 70 °, and the extinction grizzly bar is not coated with
Cover the side of the diffusing reflection layer and the angle of the screen base is more than or equal to 45 ° and less than or equal to 90 °, the extinction
The height of grizzly bar is more than or equal to the width of 0.2 times of extinction grizzly bar.
10. a kind of optical projection system, it is characterised in that including the orthographic projection printing opacity projection screen as described in any one of claim 1 to 9
Curtain and projector, the screen base that the projector is arranged in the orthographic projection printing opacity projection screen are provided with extinction grizzly bar
Side,
The projected light sent by the projector is incided on the diffusing reflection layer set on the extinction grizzly bar, is reflected and along remote
From the direction outgoing of the screen base,
Bias light is incided in the screen base by the opposite side of the screen base, through the transparent area in the screen base
Transmission, and along the projected light identical direction outgoing with being reflected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710760991.7A CN107329360A (en) | 2017-08-29 | 2017-08-29 | Orthographic projection printing opacity projection screen and optical projection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710760991.7A CN107329360A (en) | 2017-08-29 | 2017-08-29 | Orthographic projection printing opacity projection screen and optical projection system |
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| Publication Number | Publication Date |
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| CN107329360A true CN107329360A (en) | 2017-11-07 |
Family
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|---|---|---|---|
| CN201710760991.7A Pending CN107329360A (en) | 2017-08-29 | 2017-08-29 | Orthographic projection printing opacity projection screen and optical projection system |
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| CN (1) | CN107329360A (en) |
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| CN109557760A (en) * | 2019-01-08 | 2019-04-02 | 成都菲斯特科技有限公司 | A kind of off-axis short focus orthographic projection optical screen and optical projection system |
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