CN206209282U - Raster pattern optics back-projection screen - Google Patents
Raster pattern optics back-projection screen Download PDFInfo
- Publication number
- CN206209282U CN206209282U CN201620896147.8U CN201620896147U CN206209282U CN 206209282 U CN206209282 U CN 206209282U CN 201620896147 U CN201620896147 U CN 201620896147U CN 206209282 U CN206209282 U CN 206209282U
- Authority
- CN
- China
- Prior art keywords
- light
- projection screen
- film
- transparent base
- serrated face
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
A kind of raster pattern optics back-projection screen, it is characterized in that, it includes cylindrical grating imaging film, transparent base and anti-light film, cylindrical grating imaging film and anti-light film are compound in the both side surface of transparent base respectively, structure identical piano convex cylindrical lens are evenly distributed constitutes by several for cylindrical grating imaging film, and the projection face of piano convex cylindrical lens deviates from the transparent base.The outer surface of anti-light film is serrated, it includes several continuous and structure identical sawtooth units, sawtooth unit includes the first serrated face and the second serrated face, first serrated face favours the surface of transparent base, second serrated face is perpendicular to the surface of transparent base, light-absorption layer is respectively equipped with the second serrated face, so as to be blocked by spaced light-absorption layer and absorb ambient light, ambient light is effectively reduced in the case where the projected picture of back-projection screen is not influenceed to being imaged the influence of picture, the back-projection screen for making can not be disturbed by ambient light.The utility model can improve the imaging picture of existing projection screen, lift viewing experience.
Description
【Technical field】
The utility model is related to rear projection screen, more particularly to a kind of interference for reducing ambient light to projection screen, from
And projection screen is imaged apparent raster pattern optics back-projection screen.
【Background technology】
Application of the projection screen in life is very extensive, its be mainly used in large conference room, command and control center,
The occasions such as training education structure, meeting room, exhibition room, exhibition center, airport, show window；However, in reality, projection screen is in various light
Under thread environment, especially in bright ambient light under environment, its surface is projected by high light, it is easy to cause imaging picture not
Clearly, uneven, dazzle, white haze shape are serious.If it is well known that projection screen is imaged picture white haze shape (picture turns white) seriously
If, contrast and the brightness of picture can be substantially reduced, it is unclear so as to easily lead to user's viewing, and then lose itself
Displaying, demonstration or advertising results.Sum it up, can't effectively solve ambient light in the prior art to being imaged the interference of picture
And influence.And on the market, ambient light can be effective against few to being imaged the projection screen that picture is disturbed.Therefore,
Ambient light is solved to being imaged the influence of picture, a kind of new throwing for being effective against interference of the ambient light to imaging picture is designed
Shadow screen has turned into where the trend of technology development.
【Utility model content】
The utility model aims to solve the problem that above mentioned problem, and provides one kind and be effective against ambient light to enter projection imaging picture
Row interference, so that imaging picture is apparent, contrast is higher, brightness is higher, and uses the grating not limited by environment
Formula optics back-projection screen.
To achieve the above object, the utility model provides a kind of raster pattern optics back-projection screen, it is characterised in that it includes
Cylindrical grating imaging film, transparent base and anti-light film, the cylindrical grating imaging film and the anti-light film are compound in described respectively
The relative both side surface of transparent base, the cylindrical grating imaging film is uniformly arranged by several structure identical piano convex cylindrical lens
Row composition, the projection face of the piano convex cylindrical lens deviates from the transparent base.
The cylindrical grating imaging film is integrally formed by several continuous piano convex cylindrical lens, the cylindrical grating imaging
One side surface of film is in plane, and its another side surface is in wavy, and it includes several continuous and structure identical projections
Face.
The radius of curvature of the piano convex cylindrical lens is 0.1mm~0.25mm.The outer surface of the anti-light film is in sawtooth
Shape, it includes several continuous and structure identical sawtooth units, is respectively equipped with the same serrated face of each sawtooth unit
Light-absorption layer, each light-absorption layer is spaced and parallel.
The sawtooth unit includes the first serrated face and the second serrated face, and first serrated face favours the transparent base
The surface of material, second serrated face is located at second serrated face perpendicular to the surface of the transparent base, the light-absorption layer
On.
The light-absorption layer is black ink layer.
First serrated face and the second serrated face are extended to by one end of the transparent base along its width respectively
The other end, the piano convex cylindrical lens extend to the other end, described second by one end of the transparent base along its short transverse
Serrated face is perpendicular with the axial direction of the piano convex cylindrical lens.
The transparent base be transparent resin plate, transparent resin film, transparency glass plate, transparent glass film, transparent PC plate or
One kind in transparent PC films.
The grating image film and the anti-light film are pasted on the both side surface of the transparent base by adhesive respectively.
The anti-light film is made up of TPU materials.
Favorable attributes of the present utility model are that it efficiently solves above mentioned problem.The utility model is by transparent base
The both side surface of material is combined one layer of cylindrical grating imaging film and anti-light film respectively, and by the surface structure of anti-light film into zigzag,
And light-absorption layer is set on the serrated face of anti-light film, so that ambient light can be absorbed by the light-absorption layer being spaced, is not being influenceed
Ambient light is effectively reduced in the case of the projected picture of back-projection screen can not receive ambient light to being imaged the influence of picture, the back-projection screen for making
Interference；Even if under the irradiation of highlighted ambient light, raster pattern optics back-projection screen of the present utility model can equally show clearly
Projected picture, so as to its range of application can be greatly expanded, in can be not only used for the environment without high light, it can also be used to have the ring of high light
In border.Additionally, the utility model substantially improves the imaging picture of existing projection screen, user's viewing experience is improved, had
It is convenient and practical, it is easy to the characteristics of implementing, preferably widely popularize.
【Brief description of the drawings】
Fig. 1 is structural representation of the present utility model.
Fig. 2 is principle schematic of the present utility model.
Wherein, cylindrical grating imaging film 1, piano convex cylindrical lens 11, transparent base 2, anti-light film 3, the first serrated face 31,
Two serrated faces 32, light-absorption layer 33, projector equipment 4, adhesive 5.
【Specific embodiment】
The following example is explained further and supplements to of the present utility model, does not constitute any limit to the utility model
System.
As shown in Fig. 1~Fig. 2, be resistance ambient light to the imaging interference that causes of picture, solve image blurring, distortion, bright
Degree declines, the problems such as white haze shape is serious, the utility model proposes a kind of raster pattern optics back-projection screen, its utilize cylindrical grating into
Block and absorb ambient light with the anti-light film 3 with serrated face and light-absorption layer 33 as film 1, so as to existing projection screen can be improved
Image quality.Raster pattern optics back-projection screen of the present utility model is used for back projection, its using can not be influenceed by ambient light,
Can be widely applied to various places.
Specifically, as shown in Figure 1 and Figure 2, raster pattern optics back-projection screen of the present utility model include cylindrical grating imaging film 1,
Transparent base 2 and anti-light film 3.The cylindrical grating imaging film 1 and the anti-light film 3 are compound in the transparent base 2 respectively
Both side surface.
The transparent base 2 is made of clear material, its can for transparent resin plate, transparent resin film, transparency glass plate, thoroughly
One kind in bright glass-film, transparent PC plate or transparent PC films.The both side surface of the transparent base 2 be plane, its size according to
The size of projection screen and set.
As shown in figure 1, the cylindrical grating imaging film 1 is by several integrally connecteds of structure identical piano convex cylindrical lens 11
Form, the multiple piano convex cylindrical lens 11 are evenly distributed.One side surface of the cylindrical grating imaging film 1 in plane, its
Another side surface is in wavy, and it includes several continuous and structure identical projection faces.The piano convex cylindrical lens 11
Radius of curvature is 0.1mm~0.25mm, in the present embodiment, its preferred 0.2mm.The plane of the cylindrical grating imaging film 1 and institute
The surface size matching of transparent base 2 is stated, it passes through the side surface that adhesive 5 is pasted on the transparent base 2 so that described
The projection face of piano convex cylindrical lens 11 deviates from the transparent base 2, i.e., towards projector equipment 4.The piano convex cylindrical lens 11 by
One end of the transparent base 2 extends to the other end along its short transverse.The adhesive 5 can select known adhesive 5.Institute
Cylindrical grating imaging film 1 is stated to be made up of glass material.
As shown in Figure 1 and Figure 2, a side surface of the anti-light film 3 is plane, and a side surface is serrated.The anti-light film
3 plane matches with the surface of the transparent base 2, and it is being pasted on the transparent base 2 with the post that it passes through adhesive 5
The relative another side surface of concave grating imaging film 1.The hackly surface of the anti-light film 3 is by several continuous sawtooth unit groups
Into.The structure of each sawtooth unit is identical, and size is identical.The sawtooth unit includes the first serrated face 31 and the second serrated face 32.
First serrated face 31 favours the surface of the transparent base 2, and second serrated face 32 is perpendicular to the transparent base 2
Surface.In the present embodiment, it is in 30 degree of angles that first serrated face 31 is inclined with the transparent base 2, in other embodiment, institute
The first serrated face 31 is stated to may be configured to be inclined in the acute angle of other angles with the transparent base 2.The He of first serrated face 31
Second serrated face 32 extends to the other end by one end of the transparent base 2 along its width respectively.Multiple first serrated faces
It is parallel to each other between 31, is parallel to each other between multiple second serrated faces 32, adjacent the first serrated face 31 and the second serrated face 32
Head and the tail are connected respectively, so as to form the continuous hackly surface of anti-light film 3.The bearing of trend of second serrated face 32 with it is described
The bearing of trend of piano convex cylindrical lens 11 is perpendicular.The anti-light film 3 is made up of TPU materials.
Light-absorption layer 33 is respectively equipped with second serrated face 32.The light-absorption layer 33 is black ink layer, and it is used for
Ambient light is absorbed and blocked, interference of the ambient light to projection imaging is reduced.The light-absorption layer 33 can be by spraying, printing, electrophoresis
It is formed on second serrated face 32 etc. technological means.When ambient light is irradiated from the front at a certain angle, most rings
Border light just can be blocked by light-absorption layer 33 and cannot be projected directly at the outer surface of anti-light film 3.
It should be noted that, the structure of the serrated face 32 of first serrated face 31 and second is very trickle, and human eye cannot be straight
Identification is connect, and for ease of showing the concrete structure of the raster pattern optics back-projection screen in Fig. 1~Fig. 2, each structure has been amplified, it is actual
In, first serrated face 31, the second serrated face 32, piano convex cylindrical lens 11 and the ratio of the transparent base 2 be not as
It is general shown in accompanying drawing.Therefore, Fig. 1~Fig. 2 does not represent the general ratio or just of raster pattern optics back-projection screen of the present utility model
The structure of true ratio, its structure composition for being only used for showing raster pattern optics back-projection screen of the present utility model.Further, since described
The structure of the first serrated face 31, the second serrated face 32 and piano convex cylindrical lens 11 is trickle, therefore, even if in second serrated face
32 are provided with black ink layer, and it does not interfere with visual experience still, and it will not both form black line together before vision,
Also user will not be allowed to perceive and there is black line together on projection screen.
Take this, grating of the present utility model is just formd by the cylindrical grating imaging film 1, transparent base 2 and anti-light film 3
Formula optics back-projection screen.When using, as shown in Fig. 2 the projector equipment 4, as projecting apparatus is positioned over raster pattern of the present utility model
The rear of optics back-projection screen, i.e. projector equipment 4 are used for towards the cylindrical grating imaging film 1, the anti-light film 3 towards spectators
Spectators watch from front.Wherein, the A in Fig. 2 is to representing visual angle central horizontal line view direction, and B is to representing ambient light incidence side
To.It is more than the visual angle central horizontal line being normally at immediately ahead of back-projection screen due to the light source of ambient light, such as sunshine, fluorescent lamp,
Therefore, when ambient light is irradiated from the oblique upper of back-projection screen, it can be blocked by spaced light-absorption layer 33, and be absorbed
Fall, so that first serrated face 31 of the ambient light irradiation less than the lower section of light-absorption layer 33, or few partial illumination is to the first serrated face
31 so that ambient light cannot or the minimal amount of throw light mixing with projector equipment 4 (this is that light is superimposed regarding of causing
Feel the mixing of impression, light can not mix in itself), and then the visual impression of throw light cannot be slackened, therefore, just can be described
The projected picture that apparent, contrast is higher, brightness is brighter is formed on the front side surface of anti-light film 3.People normally watch projection
During picture, it is typically watched with the visual angle or parallel vision slightly looked up.Thus, when the light of projected picture enters pupil
Afterwards, imaging will be formed in human eye picture is apparent, the visual experience that contrast is higher, brightness is brighter, and then present to user
One very clear very perfect picture.It should be noted that, although the light-absorption layer 33 has and shuts out the light and absorb light
Effect, but it will not cause significantly to absorb abated effect to the throw light from projector equipment 4 because projection
Equipment 4 is generally no greater than the highest edge of projection screen, and the light that it is projected causes only pole with the angle of light-absorption layer 33
Least a portion of light can be blocked and absorb, and the front side surface that most light remain to reach anti-light film 3 is imaged.And
Human eye can not distinguish such subtle difference, therefore, few some light is blocked user finally will not be experienced
Visual pattern has influenceed.User it is sensitive be still even and continuous clear picture, compared to existing projection screen
Curtain, user can only feel that raster pattern optics rear-projection screen imaging picture of the present utility model is apparent, contrast is higher, brightness more
Height, its image quality is more preferable.And when actually used, also can adjust light-absorption layer by adjusting the putting position of projection screen
Angle between 33 and ambient light and throw light, so as to be allowed to play best projection effect.
Although being disclosed to the utility model by above example, scope of the present utility model is not limited to
In this, under conditions of conceiving without departing from the utility model, it is similar that each component of the above can be understood with art personnel
Or equivalent element is replaced.
Claims (10)
1. a kind of raster pattern optics back-projection screen, it is characterised in that it includes cylindrical grating imaging film (1), transparent base (2) and anti-
Light film (3), the cylindrical grating imaging film (1) and the anti-light film (3) are compound in relative two of the transparent base (2) respectively
Side surface, structure identical piano convex cylindrical lens (11) is evenly distributed constitutes by several for the cylindrical grating imaging film (1), institute
The projection face for stating piano convex cylindrical lens (11) deviates from the transparent base (2).
2. raster pattern optics back-projection screen as claimed in claim 1, it is characterised in that the cylindrical grating imaging film (1) if by
A dry continuous piano convex cylindrical lens (11) are integrally formed, a side surface of the cylindrical grating imaging film (1) in plane, its
Another side surface is in wavy, and it includes several continuous and structure identical projection faces.
3. raster pattern optics back-projection screen as claimed in claim 1, it is characterised in that the curvature of the piano convex cylindrical lens (11)
Radius is 0.1mm~0.25mm.
4. raster pattern optics back-projection screen as claimed in claim 1, it is characterised in that the outer surface of the anti-light film (3) is in
Zigzag, it includes several continuous and structure identical sawtooth units, on the same serrated face of each sawtooth unit respectively
Light-absorption layer (33) is provided with, each light-absorption layer (33) is spaced and parallel.
5. raster pattern optics back-projection screen as claimed in claim 4, it is characterised in that the sawtooth unit includes the first serrated face
(31) and the second serrated face (32), first serrated face (31) favours the surface of the transparent base (2), second saw
, perpendicular to the surface of the transparent base (2), the light-absorption layer (33) is on second serrated face (32) for the flank of tooth (32).
6. raster pattern optics back-projection screen as claimed in claim 5, it is characterised in that the light-absorption layer (33) is black ink
Layer.
7. raster pattern optics back-projection screen as claimed in claim 6, it is characterised in that first serrated face (31) and the second saw
The flank of tooth (32) extends to the other end, the piano convex cylindrical lens by one end of the transparent base (2) along its width respectively
(11) other end, the extension of second serrated face (32) are extended to along its short transverse by one end of the transparent base (2)
Direction is perpendicular with the bearing of trend of the piano convex cylindrical lens (11).
8. raster pattern optics back-projection screen as claimed in claim 1, it is characterised in that the transparent base (2) is transparent resin
One kind in plate, transparent resin film, transparency glass plate, transparent glass film, transparent PC plate or transparent PC films.
9. raster pattern optics back-projection screen as claimed in claim 1, it is characterised in that the cylindrical grating imaging film (1) and institute
State the both side surface that anti-light film (3) is pasted on the transparent base (2) by adhesive (5) respectively.
10. raster pattern optics back-projection screen as claimed in claim 1, it is characterised in that the anti-light film (3) is by TPU material systems
Into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620896147.8U CN206209282U (en) | 2016-08-16 | 2016-08-16 | Raster pattern optics back-projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620896147.8U CN206209282U (en) | 2016-08-16 | 2016-08-16 | Raster pattern optics back-projection screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206209282U true CN206209282U (en) | 2017-05-31 |
Family
ID=58755963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620896147.8U Active CN206209282U (en) | 2016-08-16 | 2016-08-16 | Raster pattern optics back-projection screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206209282U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831837A (en) * | 2017-11-28 | 2018-03-23 | 慧投科技（深圳）有限公司 | Eyes protection display device |
| CN110850674A (en) * | 2019-12-21 | 2020-02-28 | 成都菲斯特科技有限公司 | Projection screen and projection system |
-
2016
- 2016-08-16 CN CN201620896147.8U patent/CN206209282U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831837A (en) * | 2017-11-28 | 2018-03-23 | 慧投科技（深圳）有限公司 | Eyes protection display device |
| CN110850674A (en) * | 2019-12-21 | 2020-02-28 | 成都菲斯特科技有限公司 | Projection screen and projection system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103605258B (en) | Environment resistant light projection screen | |
| CN206002836U (en) | Rear-projection projection hard screen used in strong light environment | |
| CN206039139U (en) | That can use in highlight environment is just throwing projection screen | |
| CN207867207U (en) | High contrast projection screen | |
| ATE301299T1 (en) | BACK TRANSMISSION SCREEN | |
| CN107741610A (en) | Daylighting film, glass pane, roller shutter and Lighting shutter | |
| CN210894983U (en) | Anti-light screen structure based on linear Fresnel lens | |
| CN109976081A (en) | The preparation method of screen and extinction film | |
| CN205982976U (en) | Highlight rear -projection membrane | |
| CN206209282U (en) | Raster pattern optics back-projection screen | |
| CN203825353U (en) | Oriented light intensifying and anti-ambient light projection screen for short-focus projection equipment | |
| US9075286B2 (en) | Electrically adjustable optical diffusion for luminaires | |
| CN204595421U (en) | Can be used for the projection screen of strong light environment | |
| CN204595420U (en) | The Novel Microstructure projection screen that can use in strong light environment | |
| CN203465514U (en) | Environmental light resistance projection screen and billboard | |
| CN204595422U (en) | Novel projection screen | |
| CN203595892U (en) | Ambient light resistant projection screen | |
| CN112711172B (en) | Projection screen | |
| CN203595891U (en) | Ambient light resistant projection screen | |
| CN108333862A (en) | Optical film structure, manufacturing method thereof and projection system | |
| US3279313A (en) | Projector screens and method and apparatus for using same | |
| CN207799122U (en) | A kind of LED picture quality enhancements film | |
| CN104914660A (en) | Projection screen resisting ambient light | |
| CN207281457U (en) | Horizontal raster projection screen | |
| CN105842963A (en) | Display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |