CN206248997U - Projection screen system - Google Patents
Projection screen system Download PDFInfo
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- CN206248997U CN206248997U CN201620808126.6U CN201620808126U CN206248997U CN 206248997 U CN206248997 U CN 206248997U CN 201620808126 U CN201620808126 U CN 201620808126U CN 206248997 U CN206248997 U CN 206248997U
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- screen
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- projection screen
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
-
- 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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Overhead Projectors And Projection Screens (AREA)
- Optical Elements Other Than Lenses (AREA)
- Projection Apparatus (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
A kind of projection screen system is disclosed, the projection screen system includes multiple regions, and the multiple region can be configured and arranged to improve the visually-perceptible of spectators.Class one zone domain has identical optical properties in the intra-zone, but has different optical properties compared to other regions.Another kind of region has gradient attribute and can bridge the region with different optical properties.
Description
Technical field
The utility model is related to projection display system, more particularly to makes between the neighboring screens of such as front projection display system
Visible seams minimize screen construction.
Background technology
From generation nineteen sixty, the cinema of specialization commences play out the film of cinerama (Cinerama) type.By making
Three independent screen pictures are adjacent to and project on broader motion picture screen (wherein these three screens with three projecting apparatus
Image is collectively forming the single frame or screen picture of the film), cinerama type film is provided than the broader screen that makes the first showing of a film before the public
Curtain image.These three projecting apparatus are installed with arc, and the arc covers very wide range of aggregation viewing angle.
In typical cinerama or IMAXTMIn optical projection system, screen fixed and projection surface geometry not root
Changed according to the film being projected.
In cinerama optical projection system, screen is constituted by more than thousands of screen elements.Gap between each panel
Can generally be noted.Fan says gap and unobtrusively；Critic but disagrees.For example, the company of exploitation cinerama
Investor Lowell Thomas are still mentioned in the memoirs after he is 30 years and are promoted cinerama.
IMAX optical projection systems include single big projection screen.Projection screen is made up of less screen construction element, these
Element is sewn or is sealed, and visible space or gap are not left between each screen construction element.
From 2014, Barco EscapeTMOptical projection system brings and allows people to immerse movie theatre body therein in spite of oneself
Test.Barco EscapeTMSystem does not require to replace the screen used in cinema, and the opposite system can be modified.Fig. 1 shows
With EscapeTMThe top view of the cinema of play mode deployment.Existing front (or center) screen 10 is by the transverse direction screen of side
Curtain 11 and 12 is supplemented so that spectators 13 have harvested immersion experience.EscapeTMHorizontal screen in cinema can not be by permanent close
Seal or be sewn onto front screen, and therefore between front screen and horizontal screen there may be visible gap.
US 3,514,871 " Wide angle visual display (wide-angle visual displays) " disclose in screen and
Big lens how are placed between beholder to reduce the observability in gap, but this method has some shortcomings.Really, arrive greatly
The lens that use are not and reality and need additional support structures enough in cinema is set.And, proposed
Solution works only when beholder occupies vantage point (also referred to as sweet spot).In conventional cinema is set, mostly
Number beholder will be located at sweet spot or near sweet spot, and therefore they will perceive gap.
US 6407798 discloses using flange (flange) to minimize any gap.The detailing requiments screen is closely
Put together, this results in the risk of the coating of scratch central screen.The construction does not refer to the geometry (shape of flange yet
Shape and size).
The moral of entitled " Projection of moving and still images (projection of mobile and rest image) "
The subtitle of the 4th part of state professional standard DIN 19045-4 is " Reflection-and transmission
properties of screens；Identity sizes, type of screen, measurement (reflection of screen and
Transmission properties；Identify size, the type of screen, measurement) ".Screen is subdivided into four according to its respective reflection and transmission properties
Individual main group.The so-called optical density factor (or luminance factor), it is also referred to as gain factor, takes on the anti-of assessment screen
Penetrate the basis with transmission properties.Gain factor is indicated：Compared with one piece of standard screen, one piece of screen how eradiation.
In order to describe all reflecting attributes of screen, luminance factor will be designated for the different direction of the launch.Optimal white table
Incident light is equably diffused into all directions in face, is incided in screen surface with which angle but regardless of light.This white screen curtain load
When the benchmark of other types of screen.
For diffusing screen, the direction that light is incided on screen has few influence；Reflecting attribute is almost constant.
Although incident light to be equably diffused into all directions, but the screen of this type on normal to screen surface for reference white surface
Direction on reflect slightly many, and reflected on the direction parallel to screen slightly few.Such screen can have 1,1 and 1,
Amplification factor between 3.This amplification factor corresponds to the reflection slightly amplified in the direction on normal to screen surface.
Other screens have the preferential reflection direction consistent with the direction of incident light.
When light source is incided on screen with an angle of inclination, reflected light is mainly returned up in the side of incident light.Gain
The factor can be 1,5 in the range of 1,7.The screen of this type, incident light is with the angle identical angle on screen that falls with it
Degree is returned.A kind of mode for realizing this point is the particle of pyramid or bead shape.This screen is referred to as pearl screen or water
Brilliant screen.
In another screen type, with light of the incident corner on screen by the mirror image at vertical screen and with complete
The incidence angle for being congruent to angle of reflection is reflected.Gain factor is usually from 1,5 to 1,7.Metal or Argent grain film can be applied in
Onto screen surface, they are finally additionally structured with the shape of groove or lens.Such screen is referred to as metal screen
Or elecscreen curtain.
Gap between screen is a significant drawback.When exist between two neighboring screens high-visible black surround or
It is especially true during gap.A kind of mode for overcoming this shortcoming is to obtain as close to each other to reduce screen physical placement
The observability in gap.However, when there is border between adjacent image, human visual system is not let off between adjacent image for example
Relevant difference between color or brightness.So as to remove gap by these differences between prominent screen.
Utility model content
Need a kind of so that multi-panel monitor displaying (such as Barco EscapeTMDisplay system) horizontal screen and center shield
Gap between curtain is more invisible, while retaining the solution of the possibility of easily dismounting or mobile transverse direction screen.This is necessary
Completed in the case of the coating on central projection screen that do not wear and tear.
In an embodiment of the present utility model, there is provided a kind of projection screen system, including first area, lateral side regions and
Extended area, the first area has the first adjacent boundary, and first adjacent boundary is the first area and the expansion
Border between the domain of exhibition section, the extended area has two edges of face each other, and the lateral side regions have a distal edge
Edge and the second adjacent boundary, second adjacent boundary are the borders between the lateral side regions and the extended area, described
First area and the lateral side regions are near, wherein first adjacent boundary of the first area and the side
The second adjacent boundary face each other and a distance apart in face region, it is described that the extended area is placed as bridge joint
Distance, wherein near first adjacent boundary and the first adjacent edge of the extended area of the mutual first area
Boundary has the first optical properties of matching, and near second adjacent boundary of the mutual lateral side regions and the expansion
The second edge in exhibition section domain has the second optical properties of matching, and the extended area have between two edge it is described
The gradient of the first optical properties and second optical properties.
This extended area for example may include the change of diffusion coefficient and the ratio of specular reflectivity.
This extended area can for example include superficial punctate pattern.
This extended area for example may include diffusing reflection and/or absorbefacient particle on surface.
The system can provide seamlessly transitting between the different optical properties in the different zones in the system.Beholder will not
Unexpected discontinuous in by the optical appearance in the screen system is bothered but receives a big immersion image.For bag
The region of the ratio with different diffusions Yu specular reflectivity is included, is favourable if the gradient can bridge this change.
In another embodiment, the projection screen system is included in the extended area that the side of the gradient is bent upwards.
The gradient can be located at so that between the region angled each other of its main projection direction.The orientation in each region it
Between sharp step gap can be perceived as by human eye.If across this movement of having a common boundary, it will take a fancy to the content being projected
Go be suddenly change direction, this further highlights this discontinuous.By with bending extended area, all directions it
Between will have smooth transition, and be projected content and will smoothly be moved between the two directions.
In another embodiment, projection screen system includes first and the side with the coating with different optical properties
Region.This optical properties for example can be optical reflectivity.The different zones can be with different depending on the anti-of angle
Penetrate curve.
It may be beneficial that the optical properties are fitted between beholder and the different zones of the screen system
Different angles.If each region makes its main projection on the direction of the peripheral vision of beholder, it is also possible to it is beneficial that will
The screen attribute is adapted to therewith.
In another embodiment, the optical gradient of extended area includes the continuous mistake in the reflectivity curve depending on angle
Cross.
If the reflectivity in specific direction (angle) smoothly changes along the gradient, brightness in this direction it is prominent
So change is avoided by.
In another embodiment of the projection screen system, first and lateral side regions make its it is main extension plane each other in one jiao
Degree.
For example, it may be：The principal view direction straight line of first area is towards spectators, and the region of the side in first area
Principal view directional steering spectators, with lifted immersion experience.
In another embodiment, there is provided a kind of projection screen system, including：At least one projection screen, described at least one
Individual projection screen has in one or more optical properties that the viewing areas across the screen system with a screen extend
Gradient, at least one region of the screen has the optical properties different from the region of the remainder of the screen.
Brief description of the drawings
Fig. 1 is shown in the prior art for include the cinema disposed for immersion viewing.
Fig. 2 shows an embodiment of the present utility model, and it includes the top view of projection screen system.
Fig. 3 shows an embodiment of the present utility model, and it includes the side view of projection screen system.
Fig. 4 a and 4b show an embodiment of the present utility model, and it includes main diffusion and primary specular reflection
The polar diagram of (specular reflection).
Fig. 5 shows an embodiment of the present utility model, its albedo measurement for including gradient expandable element or region.
Fig. 6 show observer how to perceive such as used in embodiment of the present utility model under different angles have phase
With two neighboring screens of reflectance curve.
Fig. 7 show to be realized by bending according to an embodiment of the present utility model extended area between two screens or
The mechanical configurations matching of element.
Fig. 8 shows the neighboring screens with different optical reflection attributes according to an embodiment of the present utility model.
Fig. 9 shows the soft edges mixing of two images that can be used in an embodiment of the present utility model.
Figure 10 shows the image on two screen areas or the element being projected at an angle to each other.
Figure 11 shows the overlay chart picture on two screen areas being projected at an angle to each other.
Definition
" gradient " is in an attribute (such as face observed when another point or another moment is changed at any or a moment
Color, reflectivity, concentration) magnitude in increase or decrease." direction " of gradient is that the maximum rate increasing of this attribute adds deduct
Few direction.
" reflectivity " is the optical properties on surface, it include mirror-reflection (have directionality, there is small angular spread) and/
Or diffusing reflection (there is the scattering of very wide range).Reflected light symmetrically or non-symmetrically mode can be propagated from surface.
Beholder can perceive the position on screen with one " viewing angle ", the viewing angle be with from transmitting image
Normal to a surface angle deviating.So as to if beholder is located at the front on the surface with image, with normal to a surface
Alignment, then viewing angle will be 0 degree.
Term " front region or screen ", " lateral side regions or screen " include in any embodiment：Front region or screen
Curtain is first area or screen and lateral side regions or screen are second area or screen, and the second area or screen are in pin herein
Introduce to of the present utility model each or any embodiment and explicitly in the specification and in the claims.
Term " extended area or screen " can refer to the multi-screen (multiscreen) in any or each embodiment
Independent component.
The optical properties of the screen such as " minute surface " or " diffusion " are with reference in this application.The optical properties of screen can be by
The German industry of entitled " Projection of moving and still images (projection of mobile and rest image) "
Standard DIN 19045-4 are defined, for example, can be in the appropriate case diffusion, crystal, pearl or elecscreen curtain.
Specific embodiment
As seen in Figure 1, there may be gap between front screen and side screen.Overcome one kind side in these gaps
Formula is that a structure is inserted in gap.
Projection screen system according to embodiment of the present utility model includes at least two screen areas, the screen area
With different optical properties.Projection screen system can be used together with least one anterior view projecting apparatus.The utility model
Embodiment provide for such as theatre environment multi-screen projection screen system.
Screen area may include single overall component, or can be one of bigger single entire display screen curtain
Point.One region may include to keep flat flexible screen film or material by framework, for example, be unfolded by across the framework, although this
It is less preferable.In the screen system, each screen area has the shape for being suitable to viewing, for example, substantially flat, and it is excellent
Selection of land is sufficiently rigid maintaining flatness in operation.
At least one of these screen areas region is located between two other regions, for example, extended area is positioned at preceding
Between square region and lateral side regions.Extended area can have allows front screen area relative to the relative rotation of side screen area
The mechanism for turning or moving pivotally, to cause that they keep connecting each other when front screen area and side screen area is redirected
Connect.Extended area may act as hinge apparatus.Embodiment of the present utility model is provided and causes EscapeTMThe side of display system or
Gap between horizontal screen area and center or front screen area is more invisible, while holding is easily stacked, removes or moved
The scheme of the possibility of dynamic transverse direction or side screen.This must be in the case of the coating on screen area in front of projection of not wearing and tearing
Realize.
Edges of regions defines the border in region.Projection screen system including multiple physical screens may include：This side
Boundary overlaps (coincide) with the physical edge of screen.In the system of (flat or bending) projection screen big including, can
In the presence of the edges of regions not overlapped with physical edge, for example, their overlays (overlap) or deficient folded (underlap).
Neighbouring border may pass through a screen area and may act as the replacement delimiter of screen area, different from screen area
Actual edge.For example, the vertical view of the screen system in Fig. 7 illustrates one of edges of regions of extended area 313 in side screen
The neighbouring boundary in region 311 intersects with side screen area 311.
Embodiment of the present utility model includes a kind of screen system, and the screen system includes that beholder is more or less direct
To the front screen area that its front is seen；The left screen region that beholder sees to its left side；And beholder sees to its right side
Right screen region.Extended area is located between front and left side and right screen region respectively.It is of the present utility model these
Some embodiments in embodiment include fixed mask system, and the system includes that beholder more or less directly sees to its front
Rigid central screen area；The rigid left screen region that beholder sees to its left side；And beholder sees to its right side
Rigid right screen region, wherein extended area are located between front and left side and right screen region respectively.These regions can
An individually independent screen.
Embodiment of the present utility model provides a kind of multi-screen projection screen system, and it includes at least one projection screen
Curtain, at least one projection screen includes the ladder in one or more optical properties that the viewing areas across screen system extend
Degree, to cause that the region of the screen has different optical properties from the region of the other parts of the screen.
Fig. 2 shows an embodiment of the present utility model, and it is the vertical view of multi-screen theatre environment or projection screen system 100
Figure.Projection screen system can have one or more flat screens, one or more curved screens.Projection screen system can be at least
Partly around beholder 155, as shown in Figure 2.If beholder 155 sees screen area 110 forwards, left screen region
111 in the left side of beholder and right screen region 112 on the right side of beholder.In one embodiment of the present utility model,
In every nook and cranny, there is an angle and distance in front screen area and per between one side screen area, extended area 150 can
It is placed at this.Each extended area 150 is by dotted line limit.Extended area can be independent expandable element.This expansion area
Domain can be bent such that projected picture material and be moved with smooth movement between screen area and extended area.This
The object moved between front screen area and side screen area can be reduced to jump or changing nyctitropic impression.So
And, in other embodiments, extended area (such as element) can be flat and can be placed on and the another one in Fig. 2
Put, such as internally (towards beholder) and in front screen area and the front of side screen area.
In any embodiment of the present utility model, the independence that screen area can be positioned at together or be bonded together
Full screen.
Most of cinemas are positioned to so that between first row seat (near front screen) and last row seat
Distance more than the row seat width.Seat position influences the viewing angle of screen area.For example, in Fig. 1, front screen
The big viewing angle in region can be the people of the object seen in the front seat of corner in the relative corner of screen area forwards
Viewing angle, such as angle 14 (vector 16 is orthogonal with flat front screen area is assumed to be).The grand sight of side screen area
See that angle can be that the people being for example sitting on the seat of rear corner look near the relative corner of his side screen area
Angle 15 in the viewing angle of people, such as Fig. 1 (vector 17 is orthogonal with flat side screen area is assumed to be).In fact, this
It is three-dimensional case, because the arrow that the angle is indicated in Fig. 1 is the vector in three-dimensional, and seat is ranked in different height.So
And, due to the shape of cinema, for most of cinemas, the possibility viewing angle of front screen area is than side screen area
The viewing angle in domain is narrower.
In order to provide high brightness on the direct viewing direction of spectators, front screen area can be given minute surface high (oriented)
Volume reflection, i.e. the first reflectivity.This is possible, because the viewing angle scope of beholder is probably limited.Because side
Screen area generally has viewing angle scope higher, if so side screen area has mirror-reflection amount high, one
A little seats are likely to be received low-down brightness (although other people will perceive much higher brightness).Therefore, the screen system
Performance will not be consistent for all beholders.It is therefore preferred that increase side screen area on diffusion (scattering) and
The ratio of specular reflectivity is giving the reflectivity of screen second.Diffusing reflection amount higher gives more across the screen system
The perceived brightness for causing.
If first reflectivity of extended area (such as extended area 150) with front (or side) screen area,
There to be visible luminance difference towards the intersection of side (or front) screen area.In order to remove this pseudomorphism, favorably
Be gradient that extended area (such as expandable element) has at least one optical value, for example, the gradient of reflectivity, wherein expanding
The edge in exhibition section domain (such as expandable element) has the endpoint value of the first and second reflectance values.
Fig. 3 shows to illustrate the section view of projection screen system 100 and an embodiment of the present utility model of enlarged side view.See
The person of seeing 155 is not necessarily proportional to screen.Fig. 3 includes the right side of the top view shown in Fig. 1, and it has can be with side screen area
The angled front screen area 110 placed in domain 112.Also have one between front screen area 110 and side screen area 112
Distance, extended area (such as expandable element 150) can be placed at this.Extended area (such as expandable element 150) can be by by each
The mode of kind is placed between region 110 and 112 with the angle, for example, closely adjacent region 110 and 112, as shown in fig. 1, but
It is that it can also be placed in the front of region 110 and 112 and the slightly edge of overlay front and side screen area, or and region
110 and 112 alignment simultaneously is contacted with region 110 and 112, or preference any other mode.Dotted line (only indicates 201 and 202)
Imply that the possible of different screen further expands.
In figure 3, on the screen area surface towards beholder 155, screen area can be configured to provide one or
Multiple particular optical attributes, for example, having a coating or physical arrangement.As above mentioned, front screen area can have
Specularity higher, and side screen area has diffusing reflection degree higher.In figure 3, diffusing reflection amount be indicated as with
The density of striped 204 (in order to clear only two stripeds are numbered) and increase.The no striped 204 of front screen area 110, because
It has highest specularity, and side screen area 112 has the striped 204 of most high-density, because there is highest to overflow for it
Reflectance.Utility model people has found, if extended area (such as expandable element 150) can be bent and in front screen area
There is seamlessly transitting for one or more optical properties, thus the content of institute's projected image between 110 and side screen area 112
Movement can be smoothed between front screen area and side screen area.So as to beholder can be by this projection screen system sense
Know to be a big immersion screen.For example, or many of the edge 206 of extended area (such as expandable element 150) can be made
Individual optical properties match with one or more optical properties at the edge 205 of front screen area 110.It is subject to necessary change,
This is same effectively in opposite side (one or more optical properties at edge 207 and 208 can be matched in this place).Note, edge
205-208 can be the outermost part of screen area, and screen area can enter one along the dotted line (such as 201 or 202) in Fig. 3
Step extends.
It is therefore advantageous that, one or more optical properties of extended area (such as expandable element) include this or
Gradient in multiple optical properties, to cause the transition between front screen area and the optical properties of side screen area.One
Individual embodiment is included from mainly mirror-reflection to the gradually transition mainly diffusing reflection.Fig. 4 shows that the pole of reflection is sat
Mark on a map, a) be wherein most diffusion in both, and b) be most mirror-reflection in both.The length of vectorial 300-303 represents anti-
Penetrate rate score.The reflectivity for (vertical incidence being overlapped and being referred to as with y-axis) at angle [alpha]=0 is for diffusion and mirror-reflection
Represented by vector 300 and 302 respectively.So as to compared to diffusing reflection coefficient 300, specular reflectivity 302 is at vertical incidence angle
It is much bigger.The angle [alpha] described in Fig. 4 is roughly the same (about 45 degree), therefore vector 301 and 303 represents diffusion coefficient and mirror respectively
Face reflectivity.As can be seen that near 45 degree, the reflectivity 301 of diffusion curve is far longer than on minute surface curve at same angle
Reflectivity 303.Ensuring the transition of above mentioned reflectivity has gradually changing (for example in the curve for depending on angle
When starting from Fig. 4 a) and be also advantageous when reaching Fig. 4 b.
Fig. 5 shows an illustrative examples of the present utility model, and it includes the expansion with the reflectivity gradient discussed such as this section
The albedo measurement in exhibition section domain (such as expandable element).White light from traditional cinema projecting apparatus just irradiates sample.With coming from
The brightness of the luminance meter measurement reflection of Lichtmesstechnik Berlin.In 0 relative to the normal to substrate, 25 and 45
The tilting position of degree is measured in 7 measurement points.Measure since the sample edge with white and with the sample with grey
Terminate at edge.There is 13cm between each measurement point.These measured values are standardized using 45 degree of inclined measured values
(normalize).The inclined curve of degree (relative to 45) has a warning triangle and 25 (relative to result in fig. 5 it is shown that wherein 0
There are square marks in inclined curve 45) is spent.0 degree of inclined curve shows height in the close vicinity at the edge of white sample
Reflectivity (relative to the reflectivity at 45 degree).Relative reflectance at this angle shows at the point closer to grey sample edge
Write and decline.Curve compared to 0 degree, 25 degree of reflectance curve (reflectivity at relative to 45 degree at inclination) is on white sample side
Significantly lower reflection is showed near edge.By 0 write music line when 25 write music compared with line near the relative reflection of white sample edge
The big reduction of rate indicates relative specular reflectance very high towards this edge.And near grey sample edge relative reflection compared with
Small decline indicates irreflexive relative extent higher in this edge.This is also illustrated in fig. 4, and wherein specular reflectivity is bent
Line is much larger than the reduction that diffusing reflection curve is from 300 to 301 from 302 to 303 reduction.
In one embodiment, there are one or more for having and being different from inside screen on the region at screen border
One giant-screen (bending is flat) of optical properties.
Barco EscapeTMV2 has between lateral side regions and front region without the side for interrupting/not having gap
Face screen area.Screen material is lambert (Lambertian, or proximate to it), the portion of the light reflected on the screen area of side
Dividing will hit on the screen area of front.The different gains of the screen surface in lateral side regions can be less gain for using, and lead
Less reflection is caused, the result of the light of less reflection on the direction of front screen area is caused.Therefore, from such as lateral side regions
Such as the 0,7 of the beginning of upper and near lateral side regions extended area is to front screen area and near front screen area
Extended area on 1.0 or slightly many gain gradients can be used.
Embodiment of the present utility model provides the successional lifting to improving perceived projected image, such as ensuring
Image is mixed well and observer can perceive region of the consecutive image without unexpected conversion.It is of the present utility model
Embodiment provides the projection display system with two or three different screen regions, and it is included in physical screen region in itself
Between collaboration or matching effect, for example, the gradient of the optical properties in region and projecting to image on these screen areas
Matching between content.Therefore, extended area can have side screen area and front screen on the either side of extended area
The interregional collaboration of curtain or matching effect, for example, the gradient and side and front region phase of the optical properties in extended area
Match somebody with somebody, and be projected to the matching between the picture material on front side and extended screen region.Optionally, the shape of extended area
Transition between lateral side regions and front region can be provided.
The subjective human perception of the optics of the transition between two screen areas being perceived should be preferably continuous
's.In figure 6, two screen areas 310 and 311 with equivalent optical reflection attribute and equivalent incident beam are tight
It is close to and is angled with respect to each other, for example, has obtuse angle angle.Observer 312 will from different perspectives perceive identical screen category
Property, and therefore the intersection between two screen areas is seen the unexpected difference of brightness.In his current location, observation
Person will vertically see front screen area reflection, and the side screen area from high inclination-angle reflection.Because these screens
Curtain region there is identical reflectivity curve, so under an angle from the screen area reach observer perceived reflection more
It is low, cause the discontinuous of perceived light.
It is therefore advantageous that extended area has continuous geometry, and there is no unexpected between each screen area
Step or angle step are changed.For example, it is preferable that, the warp architecture of the extended area is adjacent with its in two edge
There is identical tangential direction, the extended area 313 of such as Fig. 7 at screen area.In cutting for two edges of extended area
Line direction is respectively parallel to front screen area 310 and side screen area 311.
Additionally, front screen area and side screen area depend on the reflectivity curve of angle between there may be it is smooth
Transition, to reduce the discontinuity of perceived light.
Side screen area can have the reflections that depend on angle different from main screen area or front screen area bent
Line.The more diffusion of side screen area is may be such that, to ensure that observer perceives more consistent light point on these screen areas
Cloth.The reflection of side screen area can also be reduced to reduce the crossed reflex from front screen area to side screen area
316.Projecting apparatus 314 is projected image onto on the screen area 310 of front, and the light of edge can be reflected to side screen
On curtain region 311 (edge).So as in side, the light of the edge reflection of screen area 311 may include to be derived from the first projection
The light of instrument 314, the light is reflexed on side screen area 311 from front region 311.So, by causing lateral side regions 311
Reflection is less, and crossed reflex 316 can be reduced.It therefore would be advantageous to, in front region and two reflectivity curves of lateral side regions
Between have gradient.For example, there may be primary specular reflection more the overflowing to side screen area from front screen area
The continuous transition of reflection.
By by the combination of effects of the gradient of the optical properties of the screen in extended area shape and extended area, can be with
Consistent input picture is provided.
Advantageously, the image being projected on screen area is smooth, and for front screen area and side screen
There is no unexpected conversion pseudomorphism by between the adjacent image of the different projections of projecting apparatus 314,315 respectively for region --- referring to
Fig. 8.For example, when being mixed using soft edges, the content that the image overlay being projected and two projecting apparatus are projected can be in overlay
Region be trimmed off so that one cause, referring to Fig. 9.
Alternatively, hard edge combination construction can be used, wherein in the absence of overlay region, and image not overlay completely is projected
Ground, it is adjacent to and is projected.
Figure 10 shows an embodiment of the present utility model, and wherein projecting apparatus 320 can project image onto front screen area
On 322, and projecting apparatus 231 can be projected image onto on screen area 323.Screen area 322 and 323 can have different optics
Attribute, for example, 323 dark color may indicate that it has the diffusing reflection of upper section, and 322 brighter color may indicate that
It has the mirror-reflection of upper section.In the presence of the extended area 324 that may include the gradient between different optical properties so that
The extended area is obtained to bridge between 322 and 323.There is no overlay between image is projected.
Figure 11 shows an embodiment similar with embodiment in Figure 10 of the present utility model.However, difference be by
The part overlay of projected image.In detail in this figure, overlay is located near extended area 324, but it can for example be fully located at screen
On curtain or region 322 or 323.In order to avoid there is too high brightness in overlay region, filter can be added to projecting apparatus
325 and 326.These filters can be for example neutral density type, so as to provide Transmission Gradient.
Although specific example of the present utility model described in detail above is promoting the solution to each side of the present utility model
Release, it being understood, however, that be not intended to for the utility model to be limited to the details of these examples.But, it is intended to covering falls in this practicality
All modifications, embodiment and replacement in new spirit and scope as defined by the appended claims.
Claims (21)
1. a kind of projection screen system, including first area, lateral side regions and extended area, the first area have the first phase
Adjacent side circle, first adjacent boundary is the border between the first area and the extended area, the extended area tool
There are two edges of face each other, the lateral side regions have a remote edge and the second adjacent boundary, second adjacent edge
Boundary is the border between the lateral side regions and the extended area, and the first area and the lateral side regions are located at attached each other
Closely, wherein the second adjacent boundary face each other of first adjacent boundary of the first area and the lateral side regions
And a distance apart, the extended area is placed as bridging the distance, wherein near mutual firstth area
First adjacent boundary in domain and the first edge of the extended area have the first optical properties of matching, and near that
Second adjacent boundary of this lateral side regions and the second edge of the extended area have the second optics of matching
Attribute, and the extended area has the ladder of first optical properties and second optical properties between two edge
Degree.
2. projection screen system according to claim 1, wherein the extended area is bending on the direction of the gradient.
3. projection screen system according to claim 1, wherein the first area and the lateral side regions have with difference
The coating of optical properties.
4. projection screen system according to claim 1, wherein the extended area is bending on the direction of the gradient
And the first area and the lateral side regions have the coating with different optical properties.
5. projection screen system according to claim 1, wherein the first area and the lateral side regions have with difference
The coating of optical reflectivity.
6. projection screen system according to claim 1, wherein the first area and the lateral side regions have with difference
Depend on the coating of the reflectivity curve of angle.
7. projection screen system according to claim 1, wherein the optical gradient on the extended area includes diffusion system
Count to the change of the ratio of specular reflectivity.
8. projection screen system according to claim 1, wherein the extended area is bending on the direction of the gradient
It is and the first area and the lateral side regions have the coating with different optical properties and described on the extended area
Optical gradient includes diffusion coefficient to the change of the ratio of specular reflectivity.
9. projection screen system according to claim 1, wherein the optical gradient of the extended area includes depending on angle
Continuous transition in the reflectivity curve of degree.
10. projection screen system according to claim 1, wherein the extended area is bending on the direction of the gradient
It is and the first area and the lateral side regions have the coating with different optical properties and described on the extended area
Optical gradient includes diffusion coefficient to the change of the ratio of specular reflectivity, and the optical gradient of the extended area includes
Depend on the continuous transition in the reflectivity curve of angle.
11. projection screen systems according to claim 1, wherein the extended area has superficial punctate pattern or on surface
On diffusive and/or absorbefacient particle.
12. projection screen systems according to claim 1, wherein the main extension plane of the first area and the lateral side regions
It is angled with respect to each other.
A kind of 13. projection screen systems, including：At least one projection screen, at least one projection screen is included across having
Gradient in the optical properties that the viewing areas of the screen system of one screen extend a, region of the screen has and institute
State the different optical properties in the region of the remainder of screen.
14. projection screen systems according to claim 13, wherein the screen is bending on the direction of the gradient.
15. projection screen systems according to claim 13, wherein with different from the region of the remainder of the screen
The region of the screen of optical properties has a different reflectivity curve depending on angle.
16. projection screen systems according to claim 13, wherein the screen be on the direction of the gradient bending and
The region of the screen with the optical properties different from the region of the remainder of the screen is different with one
Depending on the reflectivity curve of angle.
17. projection screen systems according to claim 13, wherein with different from the region of the remainder of the screen
The region of the screen of optical properties has the change of diffusion coefficient and the ratio of specular reflectivity.
18. projection screen systems according to claim 13, wherein the screen be on the direction of the gradient bending and
The region of the screen with the optical properties different from the region of the remainder of the screen has diffusion coefficient
With the change of the ratio of specular reflectivity.
19. projection screen systems according to claim 13, wherein with different from the region of the remainder of the screen
The region of the screen of optical properties has the continuous transition in the reflectivity curve depending on angle.
20. projection screen systems according to claim 13, wherein the screen be on the direction of the gradient bending and
The region of the screen with the optical properties different from the region of the remainder of the screen have depending on
Continuous transition in the reflectivity curve of angle.
21. projection screen systems according to claim 13, wherein with different from the region of the remainder of the screen
The region of the screen of optical properties has diffusive and/or absorbefacient on superficial punctate pattern or surface
Grain.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EPPCT/EP2016/067885 | 2016-07-27 | ||
| PCT/EP2016/067885 WO2018019369A1 (en) | 2016-07-27 | 2016-07-27 | Projection screen system and method for implementation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206248997U true CN206248997U (en) | 2017-06-13 |
Family
ID=56683910
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610607302.4A Pending CN107664912A (en) | 2016-07-27 | 2016-07-28 | Projection screen system and implementation method |
| CN201620808126.6U Expired - Fee Related CN206248997U (en) | 2016-07-27 | 2016-07-28 | Projection screen system |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610607302.4A Pending CN107664912A (en) | 2016-07-27 | 2016-07-28 | Projection screen system and implementation method |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN107664912A (en) |
| WO (1) | WO2018019369A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018020035A1 (en) * | 2016-07-29 | 2018-02-01 | Barco N.V. | Seamless multi-screen projection display system |
| CN109782992A (en) * | 2018-12-28 | 2019-05-21 | 努比亚技术有限公司 | Video broadcasting method, double screen terminal and computer readable storage medium |
| JP7216458B1 (en) * | 2022-11-02 | 2023-02-01 | 竹尾工業株式会社 | Bathroom projector screen and bathroom construction |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA3120627C (en) | 2018-11-19 | 2023-03-28 | FlightSafety International | Method and apparatus for remapping pixel locations |
| CA3120646A1 (en) | 2018-11-20 | 2020-05-28 | FlightSafety International | Rear projection simulator with freeform fold mirror |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU118138A1 (en) * | 1958-01-11 | 1958-11-30 | Е.М. Голдовский | Movie screen with varying radius of curvature |
| US3514871A (en) | 1967-05-09 | 1970-06-02 | Dalto Electronics Corp | Wide angle visual display |
| US6407798B2 (en) | 1999-09-22 | 2002-06-18 | Entertaiment Properties, Inc. | Dual-screen theater |
| TW200426487A (en) * | 2003-05-23 | 2004-12-01 | Vivavr Technology Co Ltd | Projecting system |
| WO2007149333A2 (en) * | 2006-06-16 | 2007-12-27 | Alphacurve, Inc. | Curved screen display system and method |
| EP3004986A4 (en) * | 2013-05-31 | 2017-01-11 | CJ CGV Co., Ltd. | Multi-projection system |
| WO2016014506A2 (en) * | 2014-07-22 | 2016-01-28 | Barco, Inc. | Display systems and methods employing wavelength multiplexing of colors |
-
2016
- 2016-07-27 WO PCT/EP2016/067885 patent/WO2018019369A1/en active Application Filing
- 2016-07-28 CN CN201610607302.4A patent/CN107664912A/en active Pending
- 2016-07-28 CN CN201620808126.6U patent/CN206248997U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018020035A1 (en) * | 2016-07-29 | 2018-02-01 | Barco N.V. | Seamless multi-screen projection display system |
| CN109782992A (en) * | 2018-12-28 | 2019-05-21 | 努比亚技术有限公司 | Video broadcasting method, double screen terminal and computer readable storage medium |
| CN109782992B (en) * | 2018-12-28 | 2021-12-24 | 努比亚技术有限公司 | Video playing method, double-screen terminal and computer readable storage medium |
| JP7216458B1 (en) * | 2022-11-02 | 2023-02-01 | 竹尾工業株式会社 | Bathroom projector screen and bathroom construction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107664912A (en) | 2018-02-06 |
| WO2018019369A1 (en) | 2018-02-01 |
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