CN110501869A - Projection screen and optical projection system including projection screen - Google Patents
Projection screen and optical projection system including projection screen Download PDFInfo
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- CN110501869A CN110501869A CN201810478073.XA CN201810478073A CN110501869A CN 110501869 A CN110501869 A CN 110501869A CN 201810478073 A CN201810478073 A CN 201810478073A CN 110501869 A CN110501869 A CN 110501869A
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- projection screen
- curtain face
- basic framework
- frame
- interior
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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
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- General Physics & Mathematics (AREA)
- Overhead Projectors And Projection Screens (AREA)
- Curtains And Furnishings For Windows Or Doors (AREA)
Abstract
This application involves projection screen and including the optical projection system of the projection screen.Projection screen includes: an act face, in the rear surface in the curtain face, is provided with clothes-hook on each side in each corner in the four corners in the curtain face；Basic framework, the basic framework have the frame shape of the outer profile corresponding to the curtain face, and in the front surface of the rear surface in face of the curtain face of the basic framework, the apex in each corner of the basic framework has been protrudedly formed protrusion；And tension element, each corner portion in the curtain face have been affiliated to the tension element between each clothes-hook and the protrusion, thus the curtain face to be stretched in the basic framework.According to the present invention, it is effectively reduced the technique of production and the required precision of components and assembly technology requirement, and can satisfy the requirement of product simultaneously.
Description
Technical field
The present invention relates to the fixed structures in the curtain face for projection screen.More particularly it relates to projection screen and
Optical projection system including projection screen.
Background technique
Currently, projection screen generally uses.In the production process, it needs that curtain face is pasted onto substrate using binder
On, or on periphery curtain face is stretched in basic framework using multiple tension elements.This manufacture craft is complex, and deposits
In various problems.
Specifically, Fresnel optics curtain face generallys use binder and is bonded on substrate (generalling use cellular aluminium sheet),
And outline border is then coated on the outside.Black grid optics curtain face is usually fixed in basic framework on periphery using multiple tension elements.
However, for Fresnel optics curtain face, if substrate machining accuracy is not high, especially base plan degree deviation mistake
Greatly, it is easy to the phenomenon that causing an act face out-of-flatness, or locally being heaved as caused by temperature change in the case where local trapped gas,
To generate the bad of product.For black grid optics curtain face, during assembly, since tension element quantity is excessive, it is easy
There is curtain face skew, and needs repeatedly assembly.
In addition, frame is usually fabricated directly into connection shape, and according to 45 ° of points in the manufacturing process of basic framework
Angle processing processing frame end, to meet the requirement of 90 ° of corners after frame splices.The processing technology required precision of this frame compared with
Height, and assembly corner needs special calibration when assembly.
Summary of the invention
In view of problem above, the purpose of the present invention is to provide the essences of the technique and components that can be effectively reduced production
Degree requires and assembly technology requires the projection screen that simultaneously can satisfy the requirement of product simultaneously and the projection including the projection screen
System.
According to the first aspect of the invention, a kind of projection screen is provided, the projection screen includes: an act face, described
In the rear surface in curtain face, clothes-hook is provided on each side in each corner in the four corners in the curtain face；Basic framework,
The basic framework has the frame shape of the outer profile corresponding to the curtain face, and faces the curtain in the basic framework
In the front surface of the rear surface in face, the apex in each corner of the basic framework has been protrudedly formed protrusion；And tensioning
Element, each corner portion in the curtain face, each clothes-hook and it is described protrusion between be affiliated to the tension element, with by
The curtain face is stretched in the basic framework by this.
In addition, the projection screen can also include: outer frame and interior pedestal, each corner portion in the curtain face, institute
It states outer frame and the interior pedestal is separately fixed at front side and the rear side in the curtain face.Each clothes-hook can be set described
In outer frame, the curtain face and the interior pedestal.
In addition, the basic framework may include: the interior frame being arranged on each side of the basic framework；Setting
Corner portion between the end of the every two adjacent frame；And connecting plate, the connecting plate are used for described basic
Each corner portion of frame connects the interior frame and the corner portion.
In addition, the protrusion can be formed in the corner portion.
It is manufactured in addition, the interior frame can be by using the mode of vertical cut processing.
In addition, positioning protrusion has can be set in one of the connecting plate and the corner portion, and another one can be set
It is equipped with the location hole for being inserted into the positioning protrusion.
In addition, could be formed with screw hole in the positioning protrusion, to be connected by screw to the connecting plate and the corner
Portion.
In addition, the positioning protrusion can connect the connecting plate and the corner portion by way of riveting.
In addition, the basic framework can also include positioning pin.The positioning pin can by be inserted into the connecting plate and
The interior frame is located on the connecting plate by the location hole of the corresponding position of the interior frame.
In addition, the curtain face can be rectangle.
In addition, the outer frame can be L shape, and the corner part of the outer frame can be with the corner in the curtain face
It is overlapped.
In addition, the interior pedestal can be triangle, and the right angle portions of the interior pedestal can be with the angle in the curtain face
Portion is overlapped.
In addition, the projection screen can also include fastener, the fastener can by be screwed onto the interior pedestal,
Before the outer frame and the interior pedestal are fixed on the curtain face respectively in the screw hole of the curtain face and the outer frame
Side and rear side.
In addition, the clothes-hook can be and in the screw hole for being screwed onto the interior pedestal, the curtain face and the outer frame
The outer frame and the interior pedestal are fixed on to front side and the rear side in the curtain face respectively.
In addition, the projection screen can also include outer rim on each side, the outer rim can be fixed on institute
It states in basic framework, to coat the peripheral edge of the basic framework.
In addition, the clothes-hook could be formed with the limiting section for opening the first preset distance with clothes-hook head interval, described
The gap for being affiliated to the tension element is formed between limiting section and the clothes-hook head.
According to another aspect of the present invention, providing a kind of includes projection system according to above-mentioned each exemplary projection screen
System.
According to the present invention, because only in Y direction and the two directions of Z-direction point at the four corners position in curtain face
It is not tensioned with tension element of the same race, so curtain face can be firmly secured on frame.Therefore, can reduce processing or
The requirement of assembly, so that the Yield lmproved of product.
In addition, according to the present invention, the region of the interior pedestal on the inside of the corner in curtain face is provided only on due to tension element
It is interior, and basic framework has the frame shape corresponding to curtain face in turn, it is possible to effectively reduce the basic framework ruler of projection screen
It is very little.Correspondingly, outer rim can be made to be made small, reduces the size of outer rim.
In addition, according to the present invention, due to being provided with corner portion, so the end of interior frame can be using the side of vertical cut processing
Formula manufactures.Therefore, compared with prior art, volume is not needed when reducing the processing technology required precision of frame, and assembling
Outer corner calibration, thus reduces manufacture expenditure, and guarantee the qualitative reliability of the basic framework of screen.In addition, connecting plate
It is provided with positioning pin, the processing or matching requirements of basic framework can be reduced, so that the yield of product rises.
In the following with reference to the drawings and specific embodiments, technical solution of the present invention is described in detail.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, embodiment will be described below
Needed in attached drawing be briefly described, be described below in attached drawing be only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, shown according to these attached drawings it can also implement
Example obtains other embodiments and its attached drawing.
Fig. 1 shows the front view of projection screen according to the present invention.
Fig. 2 shows the rearviews of projection screen according to the present invention.
Fig. 3 and Fig. 4 be shown respectively the screen assembly at the upper right corner of projection screen according to the present invention rear side it is oblique on
Square view and front side oblique upper view.
Fig. 5 shows the disassembly diagram corresponding to Fig. 3.
Fig. 6 shows the integrally-built front side diagram of basic framework.
Fig. 7 shows the disassembly diagram of the left of the basic framework of Fig. 6.
Fig. 8 shows the assembling figure of the left of the basic framework of Fig. 6.
View when Fig. 9 is shown for screen assembly to be fixed in basic framework by tension element.
Figure 10 shows the frame of basic framework according to the present invention and the end of outer rim.
Specific embodiment
Clear, complete description is carried out below with reference to technical solution of the attached drawing to various embodiments of the present invention, it is clear that is retouched
The embodiment stated is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill obtained all other embodiment without making creative work, belongs to this hair
Bright protected range.
Note that attached drawing is schematical, and it is not based on actual ratio drafting.The opposite ruler of the component illustrated in attached drawing
Degree and ratio are exaggerated or minimized in terms of size, and any scale is merely exemplary and does not have restricted.In attached drawing
Identical structure, element or component are indicated by the same numbers.In addition, all connection/fixed relationships mentioned in this article,
Not single finger assembly directly connects, and referring to can be formed more excellent according to specific implementation situation by adding or reducing auxiliary member
Connection/fixed structure.
Projection screen overall construction
Figures 1 and 2 show that the projection screen 1 of embodiment according to the present invention.Specifically, before Fig. 1 shows screen 1
View, and Fig. 2 shows the rearviews of projection screen 1.Here, front side direction (that is, the direction for facing observer) quilt of screen 1
It is defined as X-direction, the right direction of screen 1 is defined as Y direction, and the upper side direction of screen 1 is defined as Z axis side
To.
As depicted in figs. 1 and 2, screen 1 includes curtain face 10, basic framework 20 and outer rim 30.It such as below will specifically
Bright, in screen 1, curtain face 10 is fixed in basic framework 20, and outer rim 30 is connected to basic framework 20.
It note that basic framework 20 is blocked in the front view of Fig. 1, and is sightless for observer.
Screen assembly
Fig. 3 and Fig. 4 shows a corner of the screen 1 of embodiment according to the present invention (that is, the right side of the screen 1 in Fig. 1
Upper corner) screen assembly.Fig. 3 is the partial view by obtaining from rear side oblique upper viewing screen, and Fig. 4 is to pass through in the past
The view that viewing screen obtains above skew back.In addition, Fig. 5 shows the disassembly diagram corresponding to Fig. 3.
The screen assembly of projection screen 1 include curtain face 10, interior pedestal 11, outer frame 12, tension element 13 (not Fig. 3 extremely
Shown in Fig. 5), clothes-hook 14 and fastener 15 etc..
In this example, curtain face 10 is generally rectangular in shape.
In the front side (that is, the side for facing observer) in curtain face 10, outer frame 12 is arranged in each corner portion in act face 10.
Outer frame 12 can be various shape.In this example, curtain face 10, outer frame 12 are observed in order to not influence observer as much as possible
Can be L-shaped, and corner part is overlapped with the corner in curtain face 10.
Rear side in curtain face 10, interior pedestal 11 are arranged in each corner portion in act face 10.Interior pedestal 11 may be various
Shape.In this example, the rectangular triangle of interior pedestal 11, and right angle portions are overlapped with the corner in curtain face 10.
Moreover, as shown in Figure 3 and Figure 4, as an example, extension of the outer frame 12 on each side in the corner in curtain face 10
Amount (elongation i.e. in Y direction and Z-direction) may be approximately equal to the correspondence elongation of interior pedestal 11.
Interior pedestal 11 and outer frame 12 are fastened to rear side and the front side in act face 10 by fastener 15 respectively, so that curtain face 10
Each corner be sandwiched between interior pedestal 11 and outer frame 12.Specifically, for example, curtain face 10 can on each side in corner
To form screw hole, and the corresponding position of interior pedestal 11 and outer frame 12 also could be formed with screw hole.Therefore, by will be each tight
Firmware 15 is for example screwed to curtain face 10, interior pedestal 11 and outer frame 12 in the screw hole in act face 10, interior pedestal 11 and outer frame 12
It tightens together.For example, fastening form includes but is not limited to that screw, bolt, rivet etc. are detachably connected or non-dismountable
The form of connection.
Clothes-hook 14 can be fixed on interior pedestal 11 from the rear side in curtain face 10.In this example, preferably solid in order to realize
Determine structure, clothes-hook 14 is spirally connected from the screw hole that the rear side in curtain face 10 successively penetrates into interior pedestal 11, curtain face 10 and outer frame 12
In screw hole.As shown in Figures 3 to 5, a clothes-hook 14, and clothes-hook are respectively arranged on each side in the corner in curtain face 10
The corner vertex spacings of 14 position and curtain face 10 are opened.
As shown in figure 5, clothes-hook 14 is provided with the limiting section 16 for being spaced apart the first preset distance with clothes-hook head 17, thus exist
The gap for being affiliated to tension element 13 is formed between limiting section 16 and clothes-hook head 17, to define corresponding tension element 13
It is affiliated to position.Alternatively, it can also be not provided with limiting section 16, but in the position corresponding with above-mentioned gap of the screw rod of clothes-hook 14
The place of setting opens up out the groove for being affiliated to tension element 13.In the case, it also can be realized effect identical with limiting section.
It therefore, according to the present invention, can be by one end of tension element 13 accurately by being provided with the clothes-hook 14 of limiting section
It is affiliated on clothes-hook 14.In the period of assembly of projection screen, do not need extraly to adjust tension element is affiliated to position, thus side
Just volume production.
It is of course also possible to realize being affiliated to for tension element by other known mode.
Here, tension element 13 can be the elastic elements such as spring.
As an example, clothes-hook 14 also can have and can curtain face 10, interior pedestal 11 and outer frame 12 tighten together
Function.In this case, it is possible to the fastener 15 of clipped or whole.
Note that screen assembly of the screen 1 at four corners is identical, and therefore above to specific corner portion
The detailed description of screen assembly is also applied for the screen assembly of other three corner portions.
Basic framework
The basic framework 20 of embodiment according to the present invention is described in detail below with reference to Fig. 6, Fig. 7 and Fig. 8.Fig. 6 is shown
The integrally-built front side diagram of basic framework 20.Fig. 7 shows the disassembly diagram of the left of the basic framework 20 of Fig. 6.Fig. 8 shows
The assembling figure of the left of the basic framework 20 of Fig. 6 out.
As shown in Figure 6 to 8, basic framework 20 has the frame shape of the outer profile corresponding to curtain face 10, and including inner edge
Frame 21, corner portion 22 and connecting plate 23.Note that Fig. 6 only shows corner portion 22 at the upper right corner of basic framework 20, it is true
Each corner portion of upper basic framework 20 is provided with corner portion 22.
It is disposed with interior frame 21 in each side of basic framework 20, and in each corner portion of basic framework 20, is turned
Corner 22 is arranged between the end of two adjacent interior frames 21.Connecting plate 23 is to be spirally connected inner edge, rivet or other means
Frame 21 and corner portion 22 connect and are fixed together, to form frame shape.In this example, as shown, passing through screw reality
Existing above-mentioned fixation.
Note that the length of the interior frame 21 in interior frame 21 and horizontal side in the vertical side edge of basic framework 20 may
It is not identical.For example, the length of the interior frame 21 in vertical side edge may be different from horizontal in the case where curtain face 10 is rectangular situation
The length of interior frame 21 on side.Nevertheless, in this application, due in vertical side edge interior frame 21 and horizontal side
On the difference of interior frame 21 be only that length, so the two is collectively termed as interior frame.
Connecting plate 23 can be the L shape with symmetric design.In this example, connecting plate 23 and each interior frame 21 and
Corner portion 22 links together.Become invisible to make connecting plate 23 in the assembled condition, connecting plate 23 can be in basic subrack
The front side of frame 20 connects each interior frame 21 and corner portion 22.
As shown in fig. 7, for example, in order to which connecting plate 23 is connected in each corner portion 22, in the front surface of corner portion 22
On be formed with positioning protrusion 25 for the plate 23 that is located by connecting, and be formed with location hole 27 in the corresponding position of connecting plate 23.By
Connecting plate 23 can be connected accurately by the way that positioning protrusion 25 to be fittingly inserted into location hole 27 and be located in corner by this
In portion 22.
Further, as shown in fig. 7, screw hole can be formed in positioning protrusion 25.Such as screw 26 etc. is bolted in positioning
In screw hole in hole 27 and positioning protrusion 25, to further improve the connection between connecting plate and corner portion.
As alternative exemplary, connecting plate 23 can also be connected by way of riveting and be located in corner by positioning protrusion 25
In portion 22.In this case, it is possible to omit screw hole and screw 26 etc..At this point, positioning protrusion 25 is also simultaneous in addition to positioning function
Act on the riveting column of riveting.
Certainly, as an alternative, location hole can be formed in corner portion 22, and can be formed and be determined on connecting plate 23
Position protrusion.
Meanwhile as shown in fig. 7, for example, in order to connect each interior frame 21 by connecting plate 23, in connecting plate 23 and inner edge
It is formed with location hole on the corresponding position of each in frame 21, it, can be accurate by the way that positioning pin 28 to be inserted into these location holes
Ground positions the relative position between interior frame 21 and connecting plate 23.By this method, even if the end of interior frame 21 is added using vertical cut
The mode of work is come in the case where manufacturing, i.e., in the case where interior frame 21 is not processed into 45 ° of wedge angles, not in assembly
It needs additional corner to calibrate, thus reduces manufacture expenditure.Then, it will be connected by screw or other suitable connection types
Plate 23 and interior frame 21 tighten together.
In addition, as shown in FIG. 7 and 8, the corner vertex (corner corresponding to curtain face 10 on the front side surface of corner portion 22
Vertex) at be protrudedly formed protrusion 24, to allow the other end opposite with the one end for being affiliated to clothes-hook 14 of tension element 13 to hang
It leans against in corner portion 22.
According to the present invention, due to being provided with corner portion 22, so the end of interior frame 21 can be using the side of vertical cut processing
Formula manufactures, without being processed into interior frame 21 with 45 ° of wedge angles.That is, according to the present invention, by the way that corner is arranged
Portion 22 come realize frame splicing 90 ° of corner requirements.Therefore, compared with prior art, the processing technology precision of frame is reduced
It is required that and while assembling do not need additional corner calibration, thus reduce manufacture expenditure, and guarantee the basic framework of screen
Qualitative reliability.In addition, connecting plate 23 is provided with positioning pin 28, so as to which interior frame 21 to be precisely located.It in turn, can be with
The processing or matching requirements for reducing basic framework, so that the yield of product rises.
In addition, since basic framework is realized by connecting plate connection interior frame and corner portion, so and the prior art
It compares, the structure of basic framework is simpler, and is more easily manufactured, to improve yield.
Under the assembled state of screen 1, it is separated with the second preset distance between protrusion 24 and clothes-hook 14, so that working as tension element 13
It is affiliated to and is affiliated to when in protrusion 24 on clothes-hook 14 and in the other end at one end, tension element 13 is in tensioning state.Namely
It says, the second preset distance between protrusion 24 and clothes-hook 14 is greater than the drift of tension element 13, i.e., tension element 13 is in nothing
Length under load condition.
As another example, interior frame 21 and corner portion 22 also can be integrally-formed as basic framework 20.At this point it is possible to
Omit connecting plate 23.
Fig. 9 shows the view in the case where screen assembly is fixed in basic framework 20 by tension element 13.
As shown in figure 9, being provided with a tension element 13 along each side in each corner in curtain face 10.Namely
Say, for curtain face 10 each corner arrangement there are two tension element 13, one of tension element 13 is arranged in Y direction
In (left and right directions, horizontal direction), and another tension element 13 is arranged in Z-direction (up and down direction, vertical direction).Two
A tension element 13 is commonly connected to protrusion 24 at one end, and the other end of each tension element 23 is connected respectively to accordingly
Clothes-hook 14.
At this point, tension element 23 is in tensioning state, thus in Y direction and the two directions of Z-direction face Shang Jiangmu
10 are stretched in basic framework 20.
In addition, screen 1 can also have outer rim 30 on each side.Outer rim 30 can be fixed on basic framework 20
On, and coat the peripheral edge of basic framework 20.In this application, it is similar to, interior frame, due to the outer rim in vertical side edge
30 and the difference of the outer rim 30 on horizontal side be only that length, so the two is collectively termed as outer rim.
Figure 10 shows an end of interior frame 21.Note that the both ends of interior frame 21 are identical.Interior frame 21 is thin
Elongated plate, and the cross section of part of the interior frame 21 on the neighboring of basic framework 20 is square shape.
Figure 10 also shows an end of outer rim 30.Note that the both ends of outer rim 30 are identical.For example, in order to
Realize that interior frame 21 is connect with outer rim 30, the cross section of outer rim 30 is formed as substantially C font, with the mouth word with interior frame 21
Shape part is assembled together.
Assembling process
The assembling process of screen 1 is described below.
Firstly, assembling screen assembly.Interior pedestal 11 and outer frame 12 are separately positioned on act face 10 by fastener 15
Rear side and front side, and be then connected in interior pedestal 11, curtain face 10 and outer frame 12 from rear side by clothes-hook 14.Here, in screen
A clothes-hook 14 is respectively arranged on the edge of the two sides on the corner vertex of component.As described above, can also directly pass through extension
Interior pedestal 11 and outer frame 12 are separately positioned on rear side and the front side in act face 10 by nail 14.The assembling of screen assembly is completed as a result,.
Then, basic framework 20 is assembled.Firstly, positioning protrusion 25 is inserted into location hole 27, so that connecting plate 23 be determined
Position is in corner portion 22.Then, connected by being screwed onto fastening screw etc. in the screw hole and location hole 27 of positioning protrusion 25
It connects and each connecting plate 23 and corner portion 22.Then, the end of interior frame 21 is located in by connecting plate by insertion positioning pin 28
On 23, and then come fastening connecting plate 23 and interior frame 21 for example, by screw.The assembling of basic framework 20 is completed as a result,.
Then, in each corner portion of screen assembly, screen assembly is stretched in Y direction using each tension element 13
In Z-direction.Specifically, one end of each tension element 13 is affiliated in the protrusion 24 of corner portion 22, and the other end is affiliated to
On corresponding clothes-hook 14, to be in tensioning state.
Finally, outer rim 30 is assembled in basic framework 20 and coats the peripheral edge of basic framework 20, to obtain
Screen 1 as depicted in figs. 1 and 2.
Note that the step of the step of assembling screen assembly and assembling basic framework sequence in no particular order, and it can also be simultaneously
It carries out.
According to the present invention, because only in Y direction and the two directions of Z-direction point at the four corners position in curtain face
It is not tensioned with tension element of the same race, so curtain face can be firmly secured on frame.Correspondingly, processing can be reduced
Or the requirement of assembly, so that the Yield lmproved of product.
In addition, according to the present invention, the region of the interior pedestal on the inside of the corner in curtain face is provided only on due to tension element
It is interior, and basic framework has the frame shape corresponding to curtain face in turn, it is possible to effectively reduce the basic framework ruler of projection screen
It is very little.Correspondingly, outer rim can be made to be made small, reduces the size of outer rim.
In addition, according to the present invention, due to being provided with corner portion, so the end of interior frame can be using the side of vertical cut processing
Formula manufactures.Therefore, compared with prior art, volume is not needed when reducing the processing technology required precision of frame, and assembling
Outer corner calibration, thus reduces manufacture expenditure, and guarantee the qualitative reliability of the basic framework of screen.In addition, connecting plate
It is provided with positioning pin, the processing or matching requirements of basic framework can be reduced, so that the yield of product rises.
Variation
In the above embodiments, the shape in curtain face 10 is implemented as rectangular shape, but the present invention is not limited to specific shape,
And it can be arbitrary shape.For example, interior pedestal 11 and outer frame 12 can be fixed in the case where curtain face 10 is non-rectangle
Four predetermined corner portions in curtain face 10.For example, this four predetermined corners can be the inscribed rectangle in act face, especially maximum area
Inscribed rectangle four corners.At this point, the shape of interior pedestal 11 and outer frame 12 can be formed such that their outer side edges
Edge is overlapped with the outer ledge in curtain face 10.Moreover, basic framework 20 and outer rim 30 are formed to have corresponding to the outer of curtain face 10
The frame shape of profile.
In general, it is higher in the probability of the center portion in curtain face to heave generation for the out-of-flatness in curtain face and/or part.According to
The present invention, even if curtain face 10 is non-rectangular shape, by the way that curtain face 10 is tensioned and is fixed at the four corners of inscribed rectangle
In basic framework 20, it still is able to eliminate the out-of-flatness occurred in the region of inscribed rectangle and/or part is heaved.
In addition, in the above embodiments, each corner portion in curtain face 10 is provided with interior pedestal 11 and outer frame 12.It is interior
Pedestal 11 and outer frame 12 can be improved an act stability for face fixed structure, and the corner in act face 10 can be protected without damage.
However, in the case where application environment is friendly or curtain face 10 is formed by not damageable material, interior pedestal and outside can be not provided with
Pedestal.In the case, clothes-hook 14 is directly anchored on each side in each corner in act face 10.
In addition, in the above embodiments, tension element 13 is implemented as tensioning spring, but also may be implemented as other
The element for being capable of providing pre-tensioning, such as tension band etc..
Using example
The invention also provides a kind of optical projection systems of projection screen proposed using above-described embodiment.This optical projection system
It may include projection screen 1 and projector.Projector issues projection ray, and it is made to project the front side (face of projection screen 1
To the side of observer), thus observer can watch the content shown on projection screen 1, such as video, image etc..
Although above, with reference to the accompanying drawings of the embodiment of the present invention, but the invention is not restricted to this, and ability
Field technique personnel should be understood that in the case where the spirit or scope limited without departing from appended claim of the present invention, can do
Various changes, combination, secondary combination and modification out.
Claims (17)
1. a kind of projection screen comprising:
Curtain face is arranged on each side in each corner in the four corners in the curtain face in the rear surface in the curtain face
There is clothes-hook；
Basic framework, the basic framework have the frame shape of the outer profile corresponding to the curtain face, and in the basic subrack
In the front surface of the rear surface in face of the curtain face of frame, the apex in each corner of the basic framework has been protrudedly formed
Protrusion；And
Tension element, each corner portion in the curtain face have been affiliated to the tensioning between each clothes-hook and the protrusion
Element, thus the curtain face to be stretched in the basic framework.
2. projection screen according to claim 1, wherein the projection screen further include:
Outer frame and interior pedestal, each corner portion in the curtain face, the outer frame and the interior pedestal are separately fixed at institute
Front side and the rear side in act face are stated,
Wherein, each clothes-hook is arranged in the outer frame, the curtain face and the interior pedestal.
3. projection screen according to claim 1, wherein the basic framework includes:
Interior frame on each side of the basic framework is set；
Corner portion between the end of the every two adjacent frame is set；And
Connecting plate, the connecting plate are used to connect the interior frame and the corner in each corner portion of the basic framework
Portion.
4. projection screen according to claim 3, wherein described to convex to form in the corner portion.
5. projection screen according to claim 3, wherein the interior frame is made by using the mode of vertical cut processing
It makes.
6. projection screen according to claim 3, wherein one of the connecting plate and the corner portion are provided with fixed
Position protrusion, and another one is provided with the location hole for being inserted into the positioning protrusion.
7. projection screen according to claim 6, wherein screw hole is formed in the positioning protrusion, to connect by screw
Connect the connecting plate and the corner portion.
8. projection screen according to claim 6, wherein the positioning protrusion connects the connection by way of riveting
Plate and the corner portion.
9. projection screen according to claim 3, wherein the basic framework further includes positioning pin,
Wherein, the positioning pin will be described interior by being inserted into the location hole of the corresponding position of the connecting plate and the interior frame
Frame is located on the connecting plate.
10. projection screen according to claim 2, wherein the curtain face is rectangle.
11. projection screen according to claim 10, wherein the outer frame is L shape, and the turning of the outer frame
Part is overlapped with the corner in the curtain face.
12. projection screen according to claim 10, wherein the interior pedestal is triangle, and the interior pedestal is straight
Angle part is overlapped with the corner in the curtain face.
13. projection screen according to claim 2, wherein the projection screen further includes fastener, and the fastener is logical
It crosses in the screw hole for being screwed onto the interior pedestal, the curtain face and the outer frame and respectively by the outer frame and the interior pedestal
It is fixed on front side and the rear side in the curtain face.
14. projection screen according to claim 2, wherein the clothes-hook is by being screwed onto the interior pedestal, the curtain face
With front side and the rear side that the outer frame and the interior pedestal are fixed on to the curtain face respectively in the screw hole of the outer frame.
15. projection screen according to claim 1, wherein the projection screen further includes outer rim on each side,
The outer rim is fixed in the basic framework, to coat the peripheral edge of the basic framework.
16. projection screen according to claim 1, wherein the clothes-hook, which is formed with, opens first in advance with clothes-hook head interval
The limiting section of set a distance, between being formed between the limiting section and the clothes-hook head for being affiliated to the tension element
Gap.
17. a kind of optical projection system comprising the projection screen as described in any one of claims 1 to 16.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810478073.XA CN110501869A (en) | 2018-05-18 | 2018-05-18 | Projection screen and optical projection system including projection screen |
| PCT/CN2019/070525 WO2019218701A1 (en) | 2018-05-18 | 2019-01-05 | Projection screen and projection system comprising projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810478073.XA CN110501869A (en) | 2018-05-18 | 2018-05-18 | Projection screen and optical projection system including projection screen |
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| Publication Number | Publication Date |
|---|---|
| CN110501869A true CN110501869A (en) | 2019-11-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810478073.XA Pending CN110501869A (en) | 2018-05-18 | 2018-05-18 | Projection screen and optical projection system including projection screen |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110501869A (en) |
| WO (1) | WO2019218701A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021129500A1 (en) * | 2019-12-24 | 2021-07-01 | 深圳光峰科技股份有限公司 | Projection screen, flatness adjusting devices, and supporting and limiting device |
| WO2021174989A1 (en) * | 2020-03-04 | 2021-09-10 | 深圳光峰科技股份有限公司 | Projection system and method for adjusting projection screen |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007062759A1 (en) * | 2005-11-29 | 2007-06-07 | Barco Control Rooms Gmbh | Projecting screen and projection module for a projecting screen |
| US20100079860A1 (en) * | 2008-09-30 | 2010-04-01 | Seiko Epson Corporation | Screen |
| CN202057946U (en) * | 2011-05-20 | 2011-11-30 | 北京中泰东邦科技有限责任公司 | Rear projection box framework structure |
| CN106019793A (en) * | 2009-06-12 | 2016-10-12 | 迪瑞波有限公司 | Projection screen assembly |
| CN106443839A (en) * | 2016-11-18 | 2017-02-22 | 四川长虹电器股份有限公司 | Flexible ultra-short focus projection optical film and screen thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007240994A (en) * | 2006-03-09 | 2007-09-20 | Sony Corp | Rear projection display device and transmission type screen |
| KR100970676B1 (en) * | 2009-11-30 | 2010-07-15 | (주) 골프존 | Screen for screen golf |
| CN202050490U (en) * | 2011-05-18 | 2011-11-23 | 浙江海盛科技股份有限公司 | Screen fixing device |
| CN206479762U (en) * | 2017-02-10 | 2017-09-08 | 广州市雄云视听设备有限公司 | A kind of narrow side picture frame projection screen of arc |
-
2018
- 2018-05-18 CN CN201810478073.XA patent/CN110501869A/en active Pending
-
2019
- 2019-01-05 WO PCT/CN2019/070525 patent/WO2019218701A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007062759A1 (en) * | 2005-11-29 | 2007-06-07 | Barco Control Rooms Gmbh | Projecting screen and projection module for a projecting screen |
| US20100079860A1 (en) * | 2008-09-30 | 2010-04-01 | Seiko Epson Corporation | Screen |
| CN106019793A (en) * | 2009-06-12 | 2016-10-12 | 迪瑞波有限公司 | Projection screen assembly |
| CN202057946U (en) * | 2011-05-20 | 2011-11-30 | 北京中泰东邦科技有限责任公司 | Rear projection box framework structure |
| CN106443839A (en) * | 2016-11-18 | 2017-02-22 | 四川长虹电器股份有限公司 | Flexible ultra-short focus projection optical film and screen thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021129500A1 (en) * | 2019-12-24 | 2021-07-01 | 深圳光峰科技股份有限公司 | Projection screen, flatness adjusting devices, and supporting and limiting device |
| WO2021174989A1 (en) * | 2020-03-04 | 2021-09-10 | 深圳光峰科技股份有限公司 | Projection system and method for adjusting projection screen |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019218701A1 (en) | 2019-11-21 |
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Application publication date: 20191126 |