CN208110254U - A kind of fusion screen and projection arrangement - Google Patents

Abstract

The utility model discloses a kind of fusion screen and projection arrangements, belong to projector's technical field, and fusion screen includes the substrate that epoxy resin is made and has grating fringe, are coated with reflectance coating in substrate.Projection arrangement includes the fusion screen, projector and fusion machine.Fusion screen in the utility model and its grating fringe on screen are integrally formed, with it is traditional paste Grating Film on fusion screen compared with, avoid phenomena such as Grating Film peels off, while improving rear-projection translucency.In addition raster density is big, effectively raises drop shadow effect.

Description

A kind of fusion screen and projection arrangement

Technical field

The utility model relates to projector's technical field, in particular to a kind of fusion screen and projection arrangement.

Background technique

Currently, projection integration system generally comprises fusion screen, projector and fusion machine, but traditional fusion screen is generally Directly adopt the anti-light hard screen of resin or in such a way that traditional raster is touched.Wherein, the anti-light hard screen of resin is to be with resin material The optical coating of white is smeared on substrate, surface, and as the projective object of projector in projection fusion process, projector is by light It projects optical resin to shield firmly, then is absorbed by reflection or projection by human eye by optical coating.The side touched using traditional raster Formula is：Fusion screen is still using resin as substrate, since common grating engraving method operates difficulty on huge fusion is shielded It spends big, at high cost.So muti-piece Grating Film is mostly used to be covered on the way for merging screen surface greatly at present.

But there are apparent defects to be for above two mode：It is easy using the fusion screen of grating screen by environment Light interference, is not suitable for working under normal illumination or intense light conditions.It will cause rear-projection light transmission in such a way that Grating Film is pasted Property it is poor, the consequences such as be easy to peel off, and as shown in Figure 1, membrane structure raster density is small, the actual effect of projection is poor.

Utility model content

The purpose of this utility model is to provide a kind of fusion screen and projection arrangements, to improve the projection effect of fusion screen Fruit.

In order to achieve the above object, in a first aspect, the utility model provides a kind of fusion screen, including：：Epoxy resin be made and Substrate with grating fringe is coated with reflectance coating in substrate.

Further, substrate is thickness in 2 ~ 5 millimeters.

Further, grating fringe is diffraction grating or reflecting grating.

Further, grating fringe is uniform arrangement and grating constant is 10000nm ~ 20000nm.

Further, when grating fringe is plane grating, the anti-light coating of metal of the back side oiling white of screen is merged.

Second aspect provides a kind of projection arrangement, which includes fusion screen, projector and fusion machine, the fusion screen Using fusion screen as described above, fusion screen is located within the scope of 90 degree of video camera crevice projection angle.

Compared with prior art, there are following technical effects for the utility model：Fusion screen in the utility model is producing During directly by the grating fringe with certain angle be etched in fusion screen screen on, be integrally formed, plate reflectance coating Reflective diffraction gratings can be become later.With it is traditional fusion screen on paste Grating Film compared with, avoid Grating Film Phenomena such as peeling, while improving rear-projection translucency.In addition raster density is big, effectively raises drop shadow effect.

Detailed description of the invention

With reference to the accompanying drawing, specific embodiment of the present utility model is described in detail：

Fig. 1 is the grating fringe arrangement schematic diagram for the Grating Film addressed in the utility model background technique；

Fig. 2 is that the structural schematic diagram that screen is merged under throwing mode is just thrown in the utility model；

Fig. 3 is the structural schematic diagram for merging screen in the utility model under rear-projection throwing mode；

Fig. 4 is the arrangement schematic diagram of the grating fringe in the utility model on fusion screen；

Fig. 5 is a kind of structural schematic diagram of projection arrangement in the utility model；

Fig. 6 is the positional diagram of projector and fusion screen just under throwing mode in the utility model；

Fig. 7 is the positional diagram of projector and fusion screen under rear projection modes in the utility model.

Specific embodiment

In order to further explain the feature of the utility model, please refer to detailed description below in connection with the utility model with Attached drawing.Institute's attached drawing is only for reference and purposes of discussion, is not used to limit the protection scope of the utility model.

As shown in Figure 2 and Figure 3, present embodiment discloses a kind of fusion screens, including：Epoxy resin is made and has gratings strips The substrate 20 of line 10 is coated with reflectance coating in substrate 20.

Further, the grating fringe 10 on fusion screen is integrally formed with screen is merged, and is the mistake in the manufacturing Cheng Zhong, directly adopt obtained on the anti-light erosion layer of blank of holographic quarterization method apposition on the substrate 20 interference fringe space it is latent Picture obtains the space image of interference fringe, i.e. projection diffraction grating on blank, then blank is removed after developed, fusion screen screen Grating fringe 10 is etched on curtain.

Further, substrate 20 is thickness in 2 ~ 5 millimeters.Wherein, substrate 20 using epoxide resin material hot melt after Certain thickness resin sheet is pressed into mold.

Further, the grating fringe 10 in substrate 20 is plane grating or concave grating.It in practical applications, can basis Actual practical situation etches different grating fringes on the screen of fusion screen, as shown in Fig. 2, using under rear projection modes Reflecting grating, that is, concave grating, as shown in figure 3, using diffraction grating, that is, plane grating under positive throwing mode.

Further, such as Fig. 4, the grating fringe on blank 20 be uniform arrangement and grating constant be 10000nm ~ 20000nm.Specifically, be etched in the present embodiment fusion screen on grating fringe with paste merging shield on Grating Film The defects of comparing, arranging more uniform, and microcosmic irregular or burr is not present, therefore, stray light are far smaller than the light pasted The astigmatism of grid film.In addition, traditional grating is touched generally in 200000 rans, the grating fringe being etched on fusion screen Density be higher than the grating fringe density on existing Grating Film, therefore actual drop shadow effect is preferable.

Further, reflecting grating arrangement angle is 90 degree in substrate 10.And the disclosed fusion screen of the present embodiment can expire Grating required for the entire spectral regions of foot, does not limit the specific size of grating.And the grating etched on fusion screen can be plane Grating or concave grating can meet the needs that projection arrangement is just throwing mode and rear projection modes.In the process of etched grating striped In it is high-efficient, saved production cost.

Further, as shown in Fig. 2, merging the metal of the back side oiling white of screen when grating fringe 10 is plane grating Anti-light coating 30.The front of fusion screen is reflecting grating, and the anti-light coating of metal of back side oiling white is to increase reflecting effect.It should The anti-light coating 30 of the metal of the oil white color at place can be bought from Tianjin time chemistry painting industry Co., Ltd.

Such as Fig. 5, present embodiment discloses a kind of projection arrangement, which includes fusion screen 1, projector 2 and fusion machine 3, which is located at video camera 2 crevice projection angle, 90 degree of ranges using the disclosed fusion screen of above-described embodiment, fusion 1 screen of screen Interior, the location diagram difference under positive throwing and rear projection modes is as shown in Figure 6, Figure 7.

The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model Within the scope of shield.

Claims (6)

1. a kind of fusion screen, which is characterized in that including：Epoxy resin is made and the substrate (20) with grating fringe (10), base Bottom is coated with reflectance coating on (20), which is integrally formed with substrate (20).

2. fusion screen as described in claim 1, which is characterized in that the substrate (20) is thickness in 2~5 millimeters.

3. fusion screen as claimed in claim 2, which is characterized in that the grating fringe (10) is plane grating or concave surface light Grid.

4. fusion screen as claimed in claim 2, which is characterized in that the grating fringe (10) is uniformly arrangement and grating is normal Number is 10000nm~20000nm.

5. fusion screen as claimed in claim 4, which is characterized in that described when the grating fringe (10) is plane grating The anti-light coating of metal (30) of the back side oiling white of substrate (20).

6. a kind of projection arrangement, including fusion screen (1), projector (2) and fusion machine (3), which is characterized in that the fusion Shield (1) using claim 1-5 described in any item fusions screen, fusion shields (1) screen and is located at 90 degree of crevice projection angle of projector (2) In range.