CN206147248U - Projecting system and projection curtain - Google Patents

Abstract

An embodiment of the utility model provides a projecting system and projection curtain belongs to the projection technology field. It includes: light source, curtain, projecting apparatus, the light source sets up on the ceiling, the projecting apparatus sets up on the level ground, the light of projecting apparatus is penetrated from going oblique top the openly surface of curtain, the light of light source is penetrated from the direction to oblique below the curtain is the surface openly, the positive top layer of curtain is the glass layer the surface on glass layer forms the small granule of a plurality of, it is right that the small granule of a plurality of is used for light exposure's light carries out the diffuse reflection to be handled in order to eliminate the object in curtain the place ahead is in form the shadow in the glass layer, avoided the reflection of light of the positive object of curtain at the laminiform one -tenth of glass to the content that clear demonstration was write simultaneously with the blackboard among the prior art or blank and the curtain and the policy of "literature and art should serve both people and socialism" no. 1, can directly be write the content projection in the curtain direct in the process of teaching at the enterprising running hand of curtain.

Description

Optical projection system and projection screen

Technical field

The utility model embodiment is related to projection art, more particularly to a kind of optical projection system and projection screen.

Background technology

Multimedia teaching is referred in teaching process, according to the characteristics of instructional objective and teaching object, by Instructional Design, Reasonable selection and use Modern Teaching Medium, and with Traditional teaching means organic assembling, whole course of teaching is participated in jointly, with various Media information acts on student, forms rational teaching process structure, the teaching efficiency of being optimal.

With the development of Teaching Technology of Multimedia, during teaching, except being carried out using the blank on conventional meaning Write outer, also add projecting apparatus, by the content of courses by projector projects on the curtain of a soft suspension.Traditional All are determined by teacher in teaching process.Do from the content of courses, instructional strategies, teaching method, teaching procedure even student Exercise be all that teacher prearranges, student can only passively participate in this process, i.e., in infused state.And Interactive learning environment middle school student as multimedia computer then can select according to the learning foundation of oneself, learning interest The content oneself to be learnt, can select the exercise for being adapted to oneself level, if teaching software is compiled more preferably, connect teaching pattern Can also select, such as, individualized instruction pattern can be used, it is also possible to the pattern for consulting to discuss.That is, student exists There is the possibility being actively engaged in such interactive learning environment, rather than all are all arranged properly by teacher, student can only be by It is dynamic to receive.

But, in order to increase blackboard or blank that interactive needs both need to write in teaching, need to prepare to throw again The screen of shadow, can bring following inconvenience in field research：Increase projection screen before blackboard, can increase teaching input into This, will need constantly switching in teaching process according to teaching, and one using blank or projection screen, especially in the mistake of teaching Cheng Zhong, it is impossible to directly write on curtain.

Utility model content

In view of this, one of technical problem that the utility model embodiment is solved is to provide a kind of optical projection system and throwing Shadow curtain, to solve prior art in the problems referred to above.

The utility model embodiment provides a kind of optical projection system, and it includes：Light source, curtain, projecting apparatus, the light source is arranged On the ceiling, the projecting apparatus is arranged on level ground, and the light of the projecting apparatus is mapped to the curtain from lower to oblique upper The front face surface of cloth, the light of the light source is mapped to the curtain front face surface on to the direction of obliquely downward, the curtain Facial surface is glassy layer, has several molecules on the surface of the glassy layer, and it is right that described several molecules are used for The light of the light source irradiation and/or the light from curtain front object carry out diffusing reflection process.

Alternatively, in any system embodiment of the present utility model, the light source point multirow is arranged on mounting surface.

Alternatively, in any system embodiment of the present utility model, the light source is grouped, is every one group of light source Same brightness adjusting switch is configured, for carrying out the adjustment of brightness simultaneously to same group of the light source.

Alternatively, in any system embodiment of the present utility model, the glassy layer lower surface is additionally provided with reflector layer, The reflector layer includes multiple reflection edges, and each reflection edge includes the first reflective surface and the second reflective surface, first reflective surface The light that the light source slants from top to bottom curtain surface is reflexed to into upwards the ceiling, second reflective surface is by institute Stating the light slanted out from top to bottom during projector projects content carries out reflection process, tends to being projected to curtain front.

Alternatively, in any system embodiment of the present utility model, along curtain direction from top to bottom, reflection edge The area of the first reflective surface successively decreases, and the second reflective area is incremented by, and the first reflective surface reduces with the angle of horizontal plane, and second is reflective Face increases with the angle of horizontal plane.

Alternatively, in any system embodiment of the present utility model, multiple reflection edges that the reflective surface includes are divided into Multigroup, same reflection edge group includes the multiple reflection edges of identical, along curtain reflection edge from top to bottom between reflection edge group The area of the first reflective surface successively decrease, the area of the second reflective surface is incremented by, and the first reflective surface reduces with the angle of horizontal plane, second Reflective surface increases with the angle of horizontal plane.

Alternatively, in any system embodiment of the present utility model, basal layer, the base are also set up under the reflector layer Plinth layer top to bottm includes protective layer, diffusion layer, optical waveguide layer, supporting layer, polyurethane coating, tissue layer, the protective layer, diffusion The integral basal layer of layer, optical waveguide layer, supporting layer, polyurethane coating, tissue layer Jing hot pressing；Or,

The basal layer includes from top to bottom protective layer, diffusion layer, optical waveguide layer, the protective layer, diffusion layer, optical waveguide layer Jing The integral basal layer of hot pressing.

Alternatively, in any system embodiment of the present utility model, the protective layer, diffusion layer, optical waveguide layer, support In layer, polyurethane coating, tissue layer, per layer of thickness is 0.01mm～0.15mm；Or, the protective layer, diffusion layer, leaded light In layer, the protective layer, protective layer described in the thickness of diffusion layer, diffusion layer for 0.01mm～0.15mm, the optical waveguide layer Thickness is 0.02mm～0.30mm.

Alternatively, in any system embodiment of the present utility model, also including reflector, the reflector is used for institute Stating the light of projector projects carries out reflection process, and supplements luminous energy to reflected light, and the reflected light after supplementing is injected into the curtain Front face surface.

Alternatively, in any system embodiment of the present utility model, also including a lettering pen, the lettering pen is used can Film forming ink, the film forming ink light transmittance is low and can be wiped free of.

The utility model embodiment provides a kind of projection screen, including glassy layer, if being formed on the surface of the glassy layer Dry molecule, described several molecules are used for the light to light source irradiation and/or from curtain front The light of object carries out diffusing reflection process.

Alternatively, in arbitrary curtain embodiment of the present utility model, the glassy layer lower surface is additionally provided with reflector layer, The reflector layer includes multiple reflection edges, and each reflection edge includes the first reflective surface and the second reflective surface, first reflective surface The light that the light source slants from top to bottom curtain surface is reflexed to into upwards the ceiling, second reflective surface is by institute Stating the light slanted out from top to bottom during projector projects content carries out reflection process, tends to being projected to curtain front.

Alternatively, in arbitrary curtain embodiment of the present utility model, along curtain direction from top to bottom, reflection edge The area of the first reflective surface successively decreases, and the second reflective area is incremented by, and the first reflective surface reduces with the angle of horizontal plane, and second is reflective Face increases with the angle of horizontal plane.

Alternatively, in arbitrary curtain embodiment of the present utility model, multiple reflection edges that the reflector layer includes are divided into Multigroup, same reflection edge group includes the multiple reflection edges of identical, along curtain reflection edge from top to bottom between reflection edge group The area of the first reflective surface successively decrease, the area of the second reflective surface is incremented by, and the first reflective surface reduces with the angle of horizontal plane, second Reflective surface increases with the angle of horizontal plane.

Alternatively, in arbitrary curtain embodiment of the present utility model, basal layer, the base are also set up under the reflector layer Plinth layer includes from top to bottom protective layer, diffusion layer, optical waveguide layer, supporting layer, polyurethane coating, tissue layer, the protective layer, diffusion Layer, optical waveguide layer, supporting layer, polyurethane coating, the integral basal layer of tissue layer Jing hot pressing；Or, also set under the reflector layer Basal layer is put, the basal layer includes from top to bottom protective layer, diffusion layer, optical waveguide layer, the protective layer, diffusion layer, optical waveguide layer The integral basal layer of Jing hot pressings.

Alternatively, in arbitrary curtain embodiment of the present utility model, the protective layer, diffusion layer, optical waveguide layer, support In layer, polyurethane coating, tissue layer, per layer of thickness is 0.01mm～0.15mm；Or, the protective layer, diffusion layer, leaded light In layer, the protective layer, protective layer described in the thickness of diffusion layer, diffusion layer for 0.01mm～0.15mm, the optical waveguide layer Thickness is 0.02mm～0.30mm.

From above technical scheme, in the utility model embodiment, by being provided with one layer of glass on the curtain, Form several molecules on the surface of the glass, the light that described several molecules irradiate to the light source and/ Or from the curtain front object light carry out diffusing reflection process, to eliminate the object in front of the curtain in the glass Form shadow in layer, it is to avoid curtain positive object glassy layer formed it is reflective, to clearly indicate the content write, together When by blackboard of the prior art or blank with curtain and two be one, directly projecting content onto curtain in the process of teaching While directly can be write on curtain.

Description of the drawings

In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art, below will be to embodiment Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only It is some embodiments described in the utility model embodiment, for those of ordinary skill in the art, can be with according to this A little accompanying drawings obtain other accompanying drawings.

Fig. 1 is the structured flowchart that the utility model embodiment one is just throwing optical projection system；

Fig. 2 is the structured flowchart that the utility model embodiment two is just throwing optical projection system；

Fig. 3 is the structured flowchart that the utility model embodiment three is just throwing optical projection system；

Fig. 4 is the structural representation of the utility model example IV reflector layer；

Fig. 5 is the floor map of the projection screen of the utility model embodiment five；

Fig. 6 is the sectional view of curtain in Fig. 5.

Specific embodiment

Certainly, implementing arbitrary technical scheme of the utility model embodiment must be not necessarily required to while reaching all of the above Advantage.

In order that those skilled in the art more fully understand the technical scheme in the utility model embodiment, below in conjunction with this Accompanying drawing in utility model embodiment, is clearly and completely described to the technical scheme in the utility model embodiment, shows So, described embodiment is only a part of embodiment of the utility model embodiment, rather than the embodiment of whole.Based on this reality The every other embodiment obtained with the embodiment in new embodiment, those of ordinary skill in the art, should all belong to this The scope of utility model embodiment protection.

The utility model embodiment is further illustrated with reference to the utility model embodiment accompanying drawing to implement.

In following embodiments, by being provided with one layer of glass on the curtain, form some on the surface of the glass Individual molecule, described several molecules are for the light of light source irradiation and/or right from curtain front The light of elephant carries out diffusing reflection process, and shadow is formed in the glassy layer to eliminate the object in front of the curtain, it is to avoid The positive object of curtain glassy layer formed it is reflective, to clearly indicate the content write, while will be of the prior art black Plate or blank and curtain and two are one, can be directly in curtain while curtain is directly projected content onto in the process of teaching Write on cloth.

Fig. 1 is the structured flowchart that the utility model embodiment one is just throwing optical projection system；As shown in figure 1, it includes：Light source 101st, curtain 102, projecting apparatus 103, the light source 101 is arranged on the ceiling, and the projecting apparatus 103 is arranged on level ground On, wherein：

In the present embodiment, the light of the light source 101 is mapped to the front table of the curtain 102 on to the direction of obliquely downward Face.Alternatively, in the present embodiment or other any embodiments, 101 points of multirows of the light source are arranged on the ceiling.Alternatively, In the present embodiment or other any embodiments, the line-spacing between the row light source 101 is 40-50cm, with light source 101 described in a line Between row away from for 30-40cm, the line-spacing, row in the present embodiment can flexibly be arranged away from parameter according to actual applied environment, Particular determination is not done.Alternatively, in the present embodiment or other any embodiments, the light source 101 is according to barreled or the side of lifting Formula is arranged on the ceiling.Alternatively, in the present embodiment or other any embodiments, the light source 101 is arrived for wavelength 2700K The warm colour light source 101 of 3000K, such as described light source 101 is specially osram lamp.

In the present embodiment, the quantity of light source can be determined according to the requirement of use occasion, the requirement of illumination.

In the present embodiment, the facial surface of the curtain 102 is glassy layer (not shown), in the table of the glassy layer Face forms several molecule (not shown)s, and described several molecules are used for the light to light source irradiation And/or from the curtain front object light carry out diffusing reflection process, to eliminate the object in front of the curtain described Shadow is formed in glassy layer, while carry out writing formed when avoiding writing reflective, to clearly indicate the content write.

Further, in the present embodiment or other embodiment, the glassy layer lower surface is additionally provided with reflector layer, described anti- Photosphere includes multiple reflection edges, and each reflection edge includes the first reflective surface and the second reflective surface, and first reflective surface will be described Light source slants from top to bottom the light on curtain surface and reflexes to the ceiling upwards, and second reflective surface is by the projection The light slanted out from top to bottom during instrument projection content carries out reflection process, tends to being projected to curtain front.

In the present embodiment, along curtain direction from top to bottom, the area of the first reflective surface of reflection edge successively decreases, and second is anti- The area of light is incremented by, and the first reflective surface reduces with the angle of horizontal plane, and the second reflective surface increases with the angle of horizontal plane.

Or, alternately, multiple reflection edges that the reflector layer includes are divided into multigroup, and same reflection edge group includes phase Same multiple reflection edges, the area along the first reflective surface of curtain reflection edge from top to bottom between reflection edge group successively decreases, the The area of two reflective surfaces is incremented by, and the first reflective surface reduces with the angle of horizontal plane, and the second reflective surface increases with the angle of horizontal plane.

In the present embodiment or other any embodiments, basal layer is also included under the reflector layer, from top to bottom including guarantor Sheath, diffusion layer, optical waveguide layer, supporting layer, polyurethane coating, tissue layer, the protective layer, diffusion layer, optical waveguide layer, supporting layer, Polyurethane coating, tissue layer Jing hot pressing are integral, based on layer, supporting layer, polyurethane coating increased the whole of reflection edge Body rigidity.In the protective layer, diffusion layer, optical waveguide layer, supporting layer, polyurethane coating, tissue layer, per layer of thickness is 0.01mm ～0.15mm.

Or, alternately, the basal layer from top to bottom include protective layer, diffusion layer, optical waveguide layer, the protective layer, Diffusion layer, optical waveguide layer Jing hot pressings are integral.In the protective layer, diffusion layer, optical waveguide layer, the protective layer, the thickness of diffusion layer Spend the protective layer, diffusion layer for 0.01mm～0.15mm, the thickness of the optical waveguide layer is 0.02mm～0.30mm.This knot Structure is relatively adapted to and optical projection system, to form higher light transmission.

In the present embodiment, the lower limb arrangement of curtain described in the longitudinally mounted reference by location of the projecting apparatus 103 is such as thrown The angle of shadow is projected to from top to bottom on curtain, and the longitudinally mounted position of projecting apparatus 103, as reference, is being indulged with the lower limb of curtain To on position, apart from 20CM.In various different occasions, the distance can be adjusted flexibly.

Fig. 2 is the structured flowchart that the utility model embodiment two is just throwing optical projection system；As shown in Fig. 2 in the present embodiment, with Unlike above-mentioned Fig. 1 embodiments, in the present embodiment, brightness adjusting switch 104, the brightness adjusting switch can also be included 104 are used for the brightness that the light as requested according to needed for projection adjusts the light source 101.

If synchronizing control to all light sources, then a brightness adjusting switch can be only set, while to all Light source carry out brightness adjustment.

Alternately, it is contemplated that light source is different from curtain far and near distance, the impact to drop shadow effect has difference, therefore, It is of the present utility model it is arbitrary just throwing in the embodiment of optical projection system, the light source 101 is grouped, be every one group of light source The same brightness adjusting switch 104 of 101 configurations, for carrying out the adjustment of brightness simultaneously to same group of the light source 101.Especially when When wherein there is the light source group of failure, individually other light sources group can be adjusted, to make up the disappearance of defective source group to throwing The impact of shadow effect.

Fig. 3 is the structured flowchart that the utility model embodiment three is just throwing optical projection system；As shown in figure 3, in the present embodiment, with As a example by being imparted knowledge to students in classroom, multiple light sources 101 are set on the ceiling in classroom, multiple light sources 101 are set to multirow, often A line includes several light sources, and same line light source carries out brilliance control by same brightness adjusting switch, the equal incident light of these light sources It is arranged on mounting surface to the mode point multirow that obliquely downward is projected on.Line-spacing between the row light source 101 is 40- 50cm, with the row between light source described in a line 101 away from for 30-40cm.

Classroom front hang curtain 102, ceiling mounted projecting apparatus 103, each light source 101 according to Incident light is slanted to be arranged in the direction of the curtain 102, and the facial surface of the curtain 102 is glassy layer, in the glassy layer Surface form several molecules.One layer of reflector layer is provided below in glassy layer, the reflector layer includes multiple reflection edges.

The reflection edge is used to carry out after different degrees of process the incident light that the curtain diverse location is received Form the reflected light of uniform incidence human eye, density of setting of the reflection edge on the curtain surface increase successively from top to bottom or from Under increase successively to upper, such as the direction along curtain from top to bottom, the area of the first reflective surface of reflection edge successively decreases, and second is anti- The area of light is incremented by, and the first reflective surface reduces with the angle of horizontal plane, and the second reflective surface increases with the angle of horizontal plane.Or, Multiple reflection edges that the reflector layer includes are divided into multigroup, and same reflection edge group includes the multiple reflection edges of identical, along curtain The area of the first reflective surface of cloth reflection edge from top to bottom between reflection edge group successively decreases, and the area of the second reflective surface is incremented by, the One reflective surface reduces with the angle of horizontal plane, and the second reflective surface increases with the angle of horizontal plane.

In the present embodiment, density of setting of the reflection edge on the curtain surface increases successively from top to bottom or under Increase successively to upper.The principle of variable density can be that the intensity of illumination on curtain is inversely proportional to, and the illumination received on curtain is strong Degree gets over general goal, and the density of reflection edge is bigger, otherwise then less.If the direction of such as projection is curtain lower limb from top to bottom Illumination more concentrate, the density of reflection edge is larger, and the density of the reflection edge of curtain top edge is less.This variable density Trend can integrally diminish or become big, not necessarily continuous to become big or diminish.

Fig. 4 is the structural representation of the utility model example IV reflector layer；As shown in figure 4, what the reflector layer included Multiple reflection edges are divided into multigroup such as 2 groups, and same reflection edge group includes the multiple reflection edges of specification identical, i.e., same reflection edge The first reflective surface of all reflection edges and the angle of inclination of the second reflective surface are completely the same in group, and come on the whole, along curtain The area of the first reflective surface of cloth reflection edge from top to bottom between reflection edge group successively decreases, and the area of the second reflective surface is incremented by, the One reflective surface reduces with the angle of horizontal plane, and the second reflective surface increases with the angle of horizontal plane.Each group include three it is reflective Rib, this two groups of reflection edges are presented symmetrical, so as to realize the change of density.

Fig. 5 is the floor map of the projection screen of the utility model embodiment five；Fig. 6 is the sectional view of curtain in Fig. 5；Such as Shown in Fig. 5, Fig. 6, in order to clearly explain, the molecule signal on the surface of glass 104 is larger on curtain 102.Molecule 122 can be irregular projection, and for example, circular, its diameter can be 0.01mm～0.03mm.

In the utility model embodiment, the pen 132 write on glass is such as made up using lighttight of Mo Cui.

However, it is desirable to explanation, in the present embodiment only by be applied to teaching as a example by the utility model right will The technical scheme asked is schematically illustrated, and the technical scheme for not limiting the utility model claim is only applicable to impart knowledge to students this Plant specific scene.

In the above-described embodiments, projecting apparatus uses laser projection, to keep longer working life, will not be because of long-time Work and cause screen intensity dimmed；Ensure extensive colour gamut, be 2 times or so of the colour gamut of common projector.

It will be understood by those skilled in the art that the embodiment of the utility model embodiment can be provided as method, device (setting It is standby) or computer program.Therefore, the utility model embodiment can be implemented using complete hardware embodiment, complete software Example or with reference to the form of the embodiment in terms of software and hardware.And, the utility model embodiment can be adopted at one or more Wherein include computer-usable storage medium (including but not limited to magnetic disc store, the CD- of computer usable program code ROM, optical memory etc.) on implement computer program form.

The utility model embodiment is with reference to the method according to the utility model embodiment, device (equipment) and computer journey The flow chart and/or block diagram of sequence product is describing.It should be understood that can be by computer program instructions flowchart and/or square frame The combination of each flow process and/or square frame and flow chart and/or the flow process in block diagram and/or square frame in figure.This can be provided A little computer program instructions are to all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices Processor producing a machine so that by computer or the finger of the computing device of other programmable data processing devices Order is produced for realizing what is specified in one flow process of flow chart or one square frame of multiple flow processs and/or block diagram or multiple square frames The device of function.

These computer program instructions may be alternatively stored in can guide computer or other programmable data processing devices with spy In determining the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory is produced to be included referring to Make the manufacture of device, the command device realize in one flow process of flow chart or one square frame of multiple flow processs and/or block diagram or The function of specifying in multiple square frames.

These computer program instructions also can be loaded in computer or other programmable data processing devices so that in meter Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented process, so as in computer or The instruction performed on other programmable devices is provided for realizing in one flow process of flow chart or multiple flow processs and/or block diagram one The step of function of specifying in individual square frame or multiple square frames.

Although having been described for the preferred embodiment of the utility model embodiment, those skilled in the art once learn Basic creative concept, then can make other change and modification to these embodiments.So, claims are intended to solution It is interpreted as including preferred embodiment and falls into having altered and changing for the utility model scope of embodiments.Obviously, this area Technical staff can carry out the essence of various changes and modification without deviating from the utility model embodiment to the utility model embodiment God and scope.So, if these modifications of the utility model embodiment and modification belong to the utility model embodiment right and want Ask and its equivalent technologies within the scope of, then the utility model embodiment be also intended to comprising these change and modification.

Claims (15)

1. a kind of optical projection system, it is characterised in that include：Light source, curtain, projecting apparatus, the light source is arranged on the ceiling, institute State projecting apparatus to be arranged on level ground, the light of the projecting apparatus from the lower front face surface that the curtain is mapped to oblique upper, The light of the light source is mapped to the curtain front face surface on to the direction of obliquely downward, and the facial surface of the curtain is glass Layer, has several molecules on the surface of the glassy layer, and described several molecules are used for light source irradiation Light and/or the light from curtain front object carry out diffusing reflection process.

2. system according to claim 1, it is characterised in that the light source point multirow is arranged on the ceiling.

3. system according to claim 2, it is characterised in that multiple light sources are grouped, are every one group of light source Same brightness adjusting switch is configured, for carrying out the adjustment of brightness simultaneously to same group of the light source.

4. the system according to any one of claim 1-3, it is characterised in that the glassy layer lower surface is additionally provided with reflective Layer, the reflector layer includes multiple reflection edges, and each described reflection edge includes the first reflective surface and the second reflective surface, described first The light that the light source slants from top to bottom the curtain surface is reflexed to upwards the ceiling by reflective surface, and described second The light slanted out from top to bottom when reflective surface is by the projector projects content carries out reflection process, tends to before the curtain Project side.

5. system according to claim 4, it is characterised in that the area of first reflective surface of the reflection edge along Curtain direction from top to bottom is successively decreased, and the direction of the area of second reflective surface along curtain from top to bottom is incremented by, institute State direction reduction of first reflective surface with the angle of horizontal plane along the curtain from top to bottom, second reflective surface and level Direction increase of the angle in face along the curtain from top to bottom.

6. system according to claim 4, it is characterised in that the multiple described reflection edge that the reflector layer includes is divided into many Group, same reflection edge group includes the multiple reflection edges of identical, reflective between reflection edge group from top to bottom along the curtain The area of first reflective surface of rib successively decreases, and the area of second reflective surface is incremented by, first reflective surface and horizontal plane Angle reduce, the angle of second reflective surface and horizontal plane increases.

7. system according to claim 4, it is characterised in that basal layer, the basal layer are also set up under the reflector layer From top to bottom include protective layer, diffusion layer, optical waveguide layer, supporting layer, polyurethane coating, tissue layer, the protective layer, diffusion layer, The integral basal layer of optical waveguide layer, supporting layer, polyurethane coating, tissue layer Jing hot pressing；Or,

Basal layer is also set up under the reflector layer, the basal layer includes from top to bottom protective layer, diffusion layer, optical waveguide layer, described The integral basal layer of protective layer, diffusion layer, optical waveguide layer Jing hot pressings.

8. system according to claim 7, it is characterised in that the protective layer, diffusion layer, optical waveguide layer, supporting layer, poly- ammonia In ester coating, tissue layer, per layer of thickness is 0.01mm～0.15mm；Or, in the protective layer, diffusion layer, optical waveguide layer, institute State protective layer, the thickness of diffusion layer is 0.01mm～0.15mm, the thickness of the optical waveguide layer is 0.02mm～0.30mm.

9. system according to claim 1, it is characterised in that also including a lettering pen, the lettering pen uses film forming ink Water, the film forming ink light transmittance is low and can be wiped free of.

10. a kind of projection screen, it is characterised in that including glassy layer, on the surface of the glassy layer several small is formed Grain, described several molecules are used for the light to light source irradiation and/or the light from curtain front object Carry out diffusing reflection process.

11. projection screens according to claim 10, it is characterised in that the glassy layer lower surface is additionally provided with reflective Layer, the reflector layer includes multiple reflection edges, and each reflection edge includes the first reflective surface and the second reflective surface, and described first is reflective The light that the light source slants from top to bottom the curtain surface is reflexed to upwards the ceiling by face, and described second is reflective The light slanted out from top to bottom when face is by the projector projects content carries out reflection process, tends to being penetrated to curtain front Go out.

12. projection screens according to claim 11, it is characterised in that the area edge of first reflective surface of reflection edge Curtain direction from top to bottom to successively decrease, the direction of the area of second reflective surface along the curtain from top to bottom is passed Direction of the angle of increasing, first reflective surface and horizontal plane along the curtain from top to bottom reduces, second reflective surface With direction increase of the angle of horizontal plane along the curtain from top to bottom.

13. projection screens according to claim 11, it is characterised in that it is multiple described reflective that the reflector layer includes Rib is divided into multigroup, and same reflection edge group includes the multiple reflection edges of identical, along curtain reflection edge from top to bottom The area of first reflective surface of the reflection edge between group successively decreases, and the area of second reflective surface is incremented by, and described first is anti- Light face reduces with the angle of horizontal plane, and second reflective surface increases with the angle of horizontal plane.

14. projection screens according to claim 11, it is characterised in that basal layer is also set up under the reflector layer, it is described Basal layer includes from top to bottom protective layer, diffusion layer, optical waveguide layer, supporting layer, polyurethane coating, tissue layer, the protective layer, expansion The integral basal layer of scattered layer, optical waveguide layer, supporting layer, polyurethane coating, tissue layer Jing hot pressing；Or,

Basal layer is also set up under the reflector layer, the basal layer includes from top to bottom protective layer, diffusion layer, optical waveguide layer, described The integral basal layer of protective layer, diffusion layer, optical waveguide layer Jing hot pressings.

15. projection screens according to claim 14, it is characterised in that the protective layer, diffusion layer, optical waveguide layer, support In layer, polyurethane coating, tissue layer, per layer of thickness is 0.01mm～0.15mm；Or, the protective layer, diffusion layer, leaded light In layer, the protective layer, the thickness of diffusion layer are 0.01mm～0.15mm, the thickness of the optical waveguide layer be 0.02mm～ 0.30mm。