CN208819012U - Imaging arrangement, projection screen and optical projection system - Google Patents
Imaging arrangement, projection screen and optical projection system Download PDFInfo
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- CN208819012U CN208819012U CN201821814483.9U CN201821814483U CN208819012U CN 208819012 U CN208819012 U CN 208819012U CN 201821814483 U CN201821814483 U CN 201821814483U CN 208819012 U CN208819012 U CN 208819012U
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Abstract
Imaging arrangement, projection screen and optical projection system provided by the utility model, are related to technical field of imaging.Wherein, the imaging arrangement includes the diffusion layer that multilayer through-thickness is set gradually, and it is Non-smooth surface face that each layer of diffusion layer at least has one side in a thickness direction, so that the light beam into this layer of diffusion layer can be spread based on corresponding Non-smooth surface face.By above-mentioned setting, the problem for causing imaging effect poor because the diffusion effect of light beam is poor in existing imaging arrangement can be improved.
Description
Technical field
The utility model relates to technical field of imaging, are in particular to a kind of imaging arrangement, projection screen and projection
System.
Background technique
With the continuous development of screen display technology, projection obtains extensive as a kind of simple, convenient and fast display mode
Application, for example, the entertainment of family or office demand.Wherein, when being shown by projection, indispensable one
Equipment is exactly projection screen.Also, imaging arrangement is focused on as the key structure performance of imaging display in projection screen
The effect wanted.
Through inventor the study found that in existing projection screen, due to projector output beam Propagation to be imaged knot
The effect spread in this configuration when structure is poor, thus, there is a problem of that the imaging effect of the imaging arrangement is poor
Utility model content
In view of this, the purpose of this utility model is to provide a kind of imaging arrangement, projection screen and optical projection system, to change
The problem for being apt in existing imaging arrangement cause imaging effect poor because the diffusion effect of light beam is poor.
To achieve the above object, the utility model embodiment adopts the following technical scheme that
A kind of imaging arrangement, including the diffusion layer that multilayer through-thickness is set gradually, and each layer of diffusion layer is in thickness
At least having one side on direction is Non-smooth surface face, so that the light beam into this layer of diffusion layer can be sent out based on corresponding Non-smooth surface face
Raw diffusion.
In the utility model embodiment preferably selects, in above-mentioned imaging arrangement, diffusion layer described in multilayer includes more
The first diffusion layer of layer and the second diffusion layer of multilayer, and first diffusion layer is different with the refractive index of second diffusion layer.
In the utility model embodiment preferably selects, in above-mentioned imaging arrangement, first described in two layers of arbitrary neighborhood
It is provided with one layer of second diffusion layer between diffusion layer, is provided with one layer of institute between the second diffusion layer described in two layers of arbitrary neighborhood
State the first diffusion layer.
In the utility model embodiment preferably selects, in above-mentioned imaging arrangement, further includes:
Multilayer resin layer, each resin layer are respectively arranged between each adjacent the first diffusion layer and the second diffusion layer,
So that adjacent first diffusion layer and the second diffusion layer pass through resin layer fitting setting.
In the utility model embodiment preferably selects, in above-mentioned imaging arrangement, the refractive index of each resin layer
It is identical and different from the refractive index of any one layer of diffusion layer.
The utility model embodiment additionally provides a kind of projection screen, including matrix structure and is made in the matrix structure
Imaging arrangement；
Wherein, the imaging arrangement includes the diffusion layer that multilayer through-thickness is set gradually, and each layer of diffusion layer exists
At least having one side on thickness direction is Non-smooth surface face, so that the light beam for passing through the matrix structure into this layer of diffusion layer can
It is spread based on corresponding Non-smooth surface face.
In the utility model embodiment preferably selects, in above-mentioned projection screen, diffusion layer described in multilayer includes more
The first diffusion layer of layer and the second diffusion layer of multilayer, and first diffusion layer is different with the refractive index of second diffusion layer.Into
One step, form first diffusion layer of multilayer or the second diffusion layer of multilayer each layer of refractive index can be it is identical,
It can be different.
In the utility model embodiment preferably selects, in above-mentioned projection screen, first described in two layers of arbitrary neighborhood
It is provided with one layer of second diffusion layer between diffusion layer, is provided with one layer of institute between the second diffusion layer described in two layers of arbitrary neighborhood
State the first diffusion layer.
In the utility model embodiment preferably selects, in above-mentioned projection screen, the imaging arrangement further include:
Multilayer resin layer, each resin layer are respectively arranged between each adjacent the first diffusion layer and the second diffusion layer,
So that adjacent first diffusion layer and the second diffusion layer pass through resin layer fitting setting.
The utility model embodiment additionally provides a kind of optical projection system, including laser projection and is based on the laser projection
The light beam of machine output carries out the projection screen of imaging display, and the projection screen includes matrix structure and is made in the substrate knot
The imaging arrangement of structure；
Wherein, the imaging arrangement includes the diffusion layer that multilayer through-thickness is set gradually, and each layer of diffusion layer exists
At least having one side on thickness direction is Non-smooth surface face, is entered so that the laser projection exports and passes through the matrix structure
The light beam of this layer of diffusion layer can be spread based on corresponding Non-smooth surface face.
Imaging arrangement, projection screen and optical projection system provided by the utility model are set gradually and are had by setting multilayer
There is the diffusion layer in Non-smooth surface face, the light beam into this layer of diffusion layer can be enable based on the Non-smooth surface surface launching of this layer of diffusion layer
Diffusion to realize that the light beam into each diffusion layer is flooded to each region of imaging arrangement, and then is guaranteeing imaging knot
While structure has preferable imaging effect, additionally it is possible to increase the visual angle of the projection screen of application.
Further, by different the second diffusion layer of the first diffusion layer of multilayer and multilayer of setting refractive index, and by each the
One diffusion layer and each second diffusion layer are arranged alternately, to further increase imaging arrangement to the diffusivity of light beam, with further
Improve the effect of imaging display.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment is cited below particularly, and
Cooperate appended attached drawing, is described in detail below.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of optical projection system provided by the embodiment of the utility model.
Fig. 2 is another structural schematic diagram of optical projection system provided by the embodiment of the utility model.
Fig. 3 is the structural schematic diagram of projection screen provided by the embodiment of the utility model.
Fig. 4 is the structural schematic diagram of imaging arrangement provided by the embodiment of the utility model.
Fig. 5 is light path schematic diagram of the light beam after diffusion layer in the utility model embodiment.
Fig. 6 is another structural schematic diagram of imaging arrangement provided by the embodiment of the utility model.
Fig. 7 is another structural schematic diagram of imaging arrangement provided by the embodiment of the utility model.
Fig. 8 is another structural schematic diagram of imaging arrangement provided by the embodiment of the utility model.
Fig. 9 is another structural schematic diagram of imaging arrangement provided by the embodiment of the utility model.
Figure 10 is the explosive view of utility model imaging arrangement provided in this embodiment.
Icon: 10- optical projection system；20- laser projection；30- projection screen；100- imaging arrangement；110- diffusion layer；
The first diffusion layer of 111-；The second diffusion layer of 113-；115- Non-smooth surface face；130- substrate layer；150- resin layer；200- substrate knot
Structure.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is a part of the embodiment of the utility model, instead of all the embodiments.Usually retouched in attached drawing here
The component of the utility model embodiment stated and shown can be arranged and be designed with a variety of different configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the range of the utility model protection.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.In the utility model
In description, term " first ", " second " etc. are only used for distinguishing description, and should not be understood as only or imply relative importance.
In the description of the present invention, unless otherwise clearly defined and limited, term " setting ", " connected ", " company
Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary
Connection inside part.For the ordinary skill in the art, it can understand that above-mentioned term is practical new at this with concrete condition
Concrete meaning in type.
As depicted in figs. 1 and 2, the utility model embodiment provides a kind of optical projection system 10, may include laser projection
Machine 20 and projection screen 30.Wherein, the laser projection 20 can be with output beam to the projection screen 30, the projection screen
The light beam that curtain 30 can be exported based on the laser projection 20 carries out imaging and shows.
Optionally, the optical device that the laser projection 20 includes is unrestricted, can according to practical application request into
Row setting for example, may include, but is not limited to red, green and blue three coloured light valves, close beam X prism, projection lens and
Drive the optical devices such as light valve, if can effectively output red, green and blue laser beam.
Optionally, the optical texture that the projection screen 30 includes is unrestricted, can be carried out according to practical application request
Setting, for example, can have different structure settings according to the type difference of the projection screen 30.
Wherein, the type of the projection screen 30 may include front projection screen and rear projection screen.In detail, it is just throwing
In the application of shadow screen, laser projection 20 is located at the same side of projection screen 30 with viewer.In the application of rear projection screen
In, laser projection 20 is located at the opposite sides of projection screen 30 with viewer.That is, front projection screen is compared to rear-projection
Shadow screen at least also has a catoptric arrangement, so that the laser beam that laser projection 20 exports can pass through the catoptric arrangement
It is reflected.
In conjunction with Fig. 3, the utility model embodiment also provides a kind of projection screen 30 that can be applied to above-mentioned optical projection system 10.
Wherein, the projection screen 30 may include imaging arrangement 100 and matrix structure 200.
Further, in the present embodiment, the matrix structure 200 can be transparent configuration.The imaging arrangement 100 is made
Make in the one side of the matrix structure 200, so that the light beam that the laser projection 20 in the optical projection system 10 exports can be worn
It crosses the matrix structure 200 and reaches the imaging arrangement 100, and complete imaging display in the imaging arrangement 100.
Optionally, the concrete type of the matrix structure 200 is unrestricted, can be set according to practical application request
It sets, for example, either flexible structure, is also possible to the structure with certain rigidity.Wherein, flexible structure may include, but
It is not limited to the flexible plastic films such as PE, PVC, CPP, BOPP, PC, PET, PA or TPU.It can wrap with certain rigid structure
It includes, but is not limited to the transparent substrates such as glass, acrylic.
Also, the matrix structure 200 is unrestricted to the light transmittance of visible light, can be carried out according to practical application request
Setting.It in the present embodiment, is the effect for guaranteeing imaging display, the light transmittance of the matrix structure 200 can be greater than or equal to
75%.
Further, in the present embodiment, type based on the projection screen 30 is different, which can be with
Including other optical textures, for example, can also include catoptric arrangement when the projection screen 30 is front projection screen.
Wherein, the catoptric arrangement is located at one side of the imaging arrangement 100 far from the matrix structure 200, so that institute
The light beam for stating the output of laser projection 20 can sequentially pass through the matrix structure 200, imaging arrangement 100 reaches the reflection knot
Structure, and reflection occurs to be again introduced into the imaging arrangement 100 in the catoptric arrangement.
Optionally, the catoptric arrangement is unrestricted to the size of the reflectivity of visible light, can be according to practical application need
It asks and is configured, for example, can be configured according to the effect demand of imaging display.In the present embodiment, the reflection knot
Structure can be greater than or equal to 65% to the average reflectance of each visible light.Also, the thickness of the catoptric arrangement is unrestricted, can
To be configured according to practical application request, for example, it may be being greater than or equal to 50nm, and it is less than or equal to 50000nm.
Wherein, the material of the catoptric arrangement is unrestricted, as long as having certain albedo to visible light,
For example, may include, but the metal materials such as aluminium, gold, silver, copper, chromium or nickel are not limited to, nichrome, aluminium alloy, titanium alloy etc. close
Golden material, TiO2/SiO2, Nb2O5/SiO2, Ta2O5/SiO2, Al2O3/SiO2, HfO2/SiO2, TiO2/MgF2, Nb2O5/MgF2,
Ta2O5/MgF2, Al2O3/MgF2, HfO2/MgF2Contour, low-index material alternate combinations at film stacking structure.
Further, go bad, fall off to avoid the problem that the catoptric arrangement is oxidized, it is in the present embodiment, described
Projection screen 30 can also include protection structure.
Wherein, the protection structure setting is in one side of the catoptric arrangement far from the imaging arrangement 100.Also, institute
The material for stating protection structure is unrestricted, can be configured according to practical application request, for example, may include, but is not limited to
SiO2、Si3N4、Al2O3Equal compound-materials, the materials such as the metal simple-substances such as chromium, nickel material or aluminium sheet, glass plate, ceramic wafer, iron plate
Material.
In conjunction with Fig. 4 and Fig. 5, the utility model embodiment also provides a kind of imaging knot that can be applied to above-mentioned projection screen 30
Structure 100.Wherein, the imaging arrangement 100 may include multilayer diffusion layer 110.
Further, in the present embodiment, 110 through-thickness of multilayer diffusion layer is set gradually.That is, institute
State the sum of the thickness with a thickness of the multilayer diffusion layer 110 of imaging arrangement 100.Also, each layer diffusion layer 110 is in thickness
It is Non-smooth surface face 115 that spending on direction, which at least has one side, so that the matrix structure 200 for passing through the projection screen 30 reaches described
Diffusion can occur when entering this layer of diffusion layer 110 based on corresponding Non-smooth surface face 115 for the light beam of imaging arrangement 100 (as schemed
Shown in 5).
Wherein, the production method of the multilayer diffusion layer 110 is unrestricted, can be set according to practical application request
It sets, for example, it may be making one layer of film layer with concaveconvex structure, on the matrix structure 200 to form the Non-smooth surface
Then face 115 successively makes the film layer of other concaveconvex structures in the film layer.
Optionally, the mode for making concaveconvex structure is unrestricted, can be configured according to practical application request, for example,
The methods of may include, but be not limited to die coating, plating or etching.Also, the concaveconvex structure of production is multiple, multiple bumps
The distribution mode of structure is unrestricted, can be configured according to practical application request, for example, either in orderly distribution,
It is also possible in disorder distribution.In the present embodiment, to improve the diffusion layer 110 to the diffusivity of light beam, can make each
Concaveconvex structure is in disorder distribution.
It further, is to improve the imaging arrangement 100 to the diffusivity of light beam, in the present embodiment, in conjunction with Fig. 6,
The multilayer diffusion layer 110 may include the first diffusion layer 111 and the second diffusion layer 113.Wherein, first diffusion layer 111
It can be multilayer, second diffusion layer 113 can be multilayer.
Also, the refractive index of first diffusion layer 111 can be different from the refractive index of second diffusion layer 113.Its
In, the mode of production refractive index different first diffusion layer 111 and second diffusion layer 113 is unrestricted, Ke Yigen
Be configured according to practical application request, for example, it may be by printing or spray the fine material with different refractivity with
It is formed.
Optionally, the relative positional relationship between first diffusion layer of multilayer 111 and the second diffusion layer of the multilayer 113
It is unrestricted, it can be configured according to practical application request, for example, can be set according to the diffusivity demand to light beam
It sets.In the present embodiment, to further improve the imaging arrangement 100 to the diffusivity of light beam, the multilayer first expands
The relative positional relationship dissipated between layer 111 and the second diffusion layer of the multilayer 113 can be, and first expands described in two layers of arbitrary neighborhood
It dissipates and is provided with one layer of second diffusion layer 113 between layer 111, be arranged between the second diffusion layer 113 described in two layers of arbitrary neighborhood
There is one layer of first diffusion layer 111.That is, first diffusion layer 111 and second diffusion layer 113 are alternately set
It sets.
Also, the refractive index size relation of first diffusion layer 111 and second diffusion layer 113 is unrestricted, can
To be configured according to practical application request, for example, either the refractive index of first diffusion layer 111 is greater than described second
The refractive index of diffusion layer 113, the refractive index for being also possible to second diffusion layer 113 are greater than the folding of first diffusion layer 111
Penetrate rate.In detail, in a kind of feasible example, the refractive index of first diffusion layer 111 can be 1.60, and described second expands
The refractive index for dissipating layer 113 can be 1.43.
Wherein, the relative position of first diffusion layer 111 and second diffusion layer 113 and the matrix structure 200
Relationship is also unrestricted, can be configured according to practical application request, for example, either the first diffusion layer of the multilayer
One layer of first diffusion layer 111 in 111 is directly made in the one side of the matrix structure 200, is also possible to the multilayer second
One layer of second diffusion layer 113 in diffusion layer 113 is directly made in the one side of the matrix structure 200.
In another feasible example, to improve the imaging arrangement 100 to the diffusivity of light beam, in the imaging
In diffusion layer 110 described in the multilayer of structure 100, the refractive index of each diffusion layer 110 can difference (as shown in Figure 7).
It further, is to form certain interval between each diffusion layer 110 to improve the diffusivity to light beam
And manufacture easy to produce, in the present embodiment, in conjunction with Fig. 8 and Fig. 9, the imaging arrangement 100 can also include substrate layer
130。
Wherein, in a kind of example that can be substituted, the substrate layer 130 is multilayer, and the substrate layer 130 is respectively set
Between each adjacent two layers diffusion layer 110, so as to be provided with one layer of substrate layer between two layers of diffusion layer of arbitrary neighborhood 110
130 (as shown in Figure 8).That is, the multi-layer substrate layer 130 and the multilayer diffusion layer 110 are successively arranged alternately, so that
Each diffusion layer 110 is made in different substrate layers 130 respectively.
In the example that another kind can substitute, the substrate layer 130 can be one layer.That is, being based on the base
The one side of material layer 430, each diffusion layer 110 can be set gradually along close to the direction far from the substrate layer 110 (as schemed
Shown in 9).
Optionally, the material of the substrate layer 130 is unrestricted, can be configured according to practical application request, for example,
It may include, but be not limited to the flexible plastic films such as PE, PVC, CPP, BOPP, PC, PET, PA or TPU and glass, acrylic
Equal transparent substrates.It in the present embodiment, is the imaging effect for guaranteeing the imaging arrangement 100, the material of the substrate layer 130 can
With identical as the material of matrix structure 200 of projection screen 30 of application.
It further, is each diffusion layer 110 of guarantee and described substrate layer 130 (diffusion layer 110 and the substrate layer
130 is adjacent and the diffusion layer 110 is non-is made in the substrate layer 130) between can fit closely, in the present embodiment, in conjunction with figure
10, the imaging arrangement 100 can also include resin layer 150.
Wherein, the resin layer 150 can be multilayer.Also, each resin layer 150 is respectively arranged at each adjacent base
Between material layer 130 and diffusion layer 110, so that the adjacent substrate layer 130 and diffusion layer 110 are set by the resin layer 150 fitting
It sets.In detail, after diffusion layer 110 described in multilayer being made in each substrate layer 130 respectively, to obtain multiple imaging knots
Then structure each imaging minor structure bonding is arranged by liquid resin (eventually forming the resin layer 150).
Also, to further improve the imaging arrangement 100 to the diffusivity and manufacture easy to produce of light beam,
In the present embodiment, the refractive index of each resin layer 150 is identical (that is, each resin layer 150 can be by same
Liquid resin is formed), and it is different from the refractive index of any one layer of diffusion layer 110.
In conclusion imaging arrangement 100 provided by the utility model, projection screen 30 and optical projection system 10, pass through setting
Multilayer is set gradually and the diffusion layer 110 with Non-smooth surface face 115, can enable the light beam base into this layer of diffusion layer 110
Emit diffusion in the Non-smooth surface face 115 of this layer of diffusion layer 110, to realize that the light beam into each diffusion layer 110 is flooded to
Each region of imaging arrangement 100, and then while guaranteeing that imaging arrangement 100 has preferable imaging effect, additionally it is possible to increase
The visual angle for the projection screen 30 applied greatly.Secondly, multilayer first diffusion layer 111 and multilayer second different by setting refractive index
Diffusion layer 113, and each first diffusion layer 111 and each second diffusion layer 113 are arranged alternately, to further increase imaging arrangement
The diffusivity of 100 pairs of light beams, to further increase the effect of imaging display.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of imaging arrangement, which is characterized in that including the diffusion layer that multilayer through-thickness is set gradually, and each layer spreads
Layer in a thickness direction at least have one side be Non-smooth surface face so that into this layer of diffusion layer light beam can be based on it is corresponding non-
Shiny surface is spread.
2. imaging arrangement according to claim 1, which is characterized in that diffusion layer described in multilayer includes the first diffusion layer of multilayer
With the second diffusion layer of multilayer, and the refractive index of first diffusion layer and second diffusion layer is different.
3. imaging arrangement according to claim 2, which is characterized in that set between the first diffusion layer described in two layers of arbitrary neighborhood
It is equipped with one layer of second diffusion layer, one layer of first diffusion is provided between the second diffusion layer described in two layers of arbitrary neighborhood
Layer.
4. imaging arrangement according to claim 3, which is characterized in that further include:
Multilayer resin layer, each resin layer are respectively arranged between each adjacent the first diffusion layer and the second diffusion layer, so that
The first adjacent diffusion layer and the second diffusion layer pass through resin layer fitting setting.
5. imaging arrangement according to claim 4, which is characterized in that the refractive index of each resin layer is identical, and with appoint
Anticipate one layer of diffusion layer refractive index it is different.
6. a kind of projection screen, which is characterized in that including matrix structure and the imaging arrangement for being made in the matrix structure；
Wherein, the imaging arrangement includes the diffusion layer that multilayer through-thickness is set gradually, and each layer of diffusion layer is in thickness
At least having one side on direction is Non-smooth surface face, so that the light beam for passing through the matrix structure into this layer of diffusion layer can be based on
It spreads in corresponding Non-smooth surface face.
7. projection screen according to claim 6, which is characterized in that diffusion layer described in multilayer includes the first diffusion layer of multilayer
With the second diffusion layer of multilayer, and the refractive index of first diffusion layer and second diffusion layer is different.
8. projection screen according to claim 7, which is characterized in that set between the first diffusion layer described in two layers of arbitrary neighborhood
It is equipped with one layer of second diffusion layer, one layer of first diffusion is provided between the second diffusion layer described in two layers of arbitrary neighborhood
Layer.
9. projection screen according to claim 8, which is characterized in that the imaging arrangement further include:
Multilayer resin layer, each resin layer are respectively arranged between each adjacent the first diffusion layer and the second diffusion layer, so that
The first adjacent diffusion layer and the second diffusion layer pass through resin layer fitting setting.
10. a kind of optical projection system, which is characterized in that including laser projection and based on the laser projection output light beam into
The projection screen of row imaging display, the projection screen includes matrix structure and the imaging arrangement for being made in the matrix structure；
Wherein, the imaging arrangement includes the diffusion layer that multilayer through-thickness is set gradually, and each layer of diffusion layer is in thickness
At least having one side on direction is Non-smooth surface face, so that the laser projection, which exports and passes through the matrix structure, enters the layer
The light beam of diffusion layer can be spread based on corresponding Non-smooth surface face.
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| CN109143764A (en) * | 2018-11-05 | 2019-01-04 | 成都菲斯特科技有限公司 | Imaging arrangement, projection screen and optical projection system |
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| CN109143764A (en) * | 2018-11-05 | 2019-01-04 | 成都菲斯特科技有限公司 | Imaging arrangement, projection screen and optical projection system |
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