CN207867207U - High contrast projection screen - Google Patents
High contrast projection screen Download PDFInfo
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- CN207867207U CN207867207U CN201820317784.4U CN201820317784U CN207867207U CN 207867207 U CN207867207 U CN 207867207U CN 201820317784 U CN201820317784 U CN 201820317784U CN 207867207 U CN207867207 U CN 207867207U
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- projection screen
- high contrast
- prism structure
- basal layer
- contrast projection
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Abstract
The utility model be about a kind of high contrast projection screen, it includes：One basal layer, multiple prism structures and multiple extinction areas；The prism structure is formed on the basal layer；Each prism structure includes a plane of incidence, an acting surface and a bottom surface；The surface that each extinction area is appeared by the basal layer is constituted, and between each prism structure；Each extinction area can directly absorb the environment light beam from environment, it is made not reflex to viewer's eyes, improve the comparison degree and clarity of image；More fillable multiple light absorption particles in the prism structure；When the light beam from environment is irradiated to the high contrast projection screen, environment light beam enters the prism structure, and absorbed by the light absorption particle, or 1.4 transparent configuration is more than using refractive index, it can equally improve the comparison degree and readability of image.
Description
Technical field
A kind of projection screen refers in particular to a kind of projection screen that can provide high contrast image.
Background technology
Fig. 4 is referred to, is the application schematic diagram of existing projection screen.In general, the projection screen 90 can be thrown with one
The collocation of image device 91 uses, which can be general projector or short focus projector.As shown in figure 4, when should
When projection arrangement 91 projects image light to the projection screen 90, i.e., the shadow of broadcasting can be shown on the projection screen 90
Picture.But when image light is projected to the projection screen 90, image light can be projected because of the reflection of projection screen 90 to smallpox
Plate so that the subregion 92 of ceiling generates multiple shadow imaging identical with image light, causes the visual interference of viewer.
This multiple shadow imaging is especially the most apparent with short focus projector of arranging in pairs or groups, because short focus projector may be disposed at apart from 90 pole of the projection screen
Close position need not have segment distance as general projector with the projection screen 90 so that after projecting image, shadow
The multiple shadow become apparent imaging is generated as light beam is easy to reflex to ceiling, it is even more serious for the vision interference of viewer.
In addition, referring to Fig. 5, the application schematic diagram with ambient light is used in for the projection screen 90.When the projection
When screen 90 is located at an at least environment light source 93, no matter the environment light source 93 is indoor illuminator or from external
It shines upon, when the ambient light that the environment light source 93 generates exposes to the projection screen 90, projection image can be made to become mould
Paste unclear, the quality of viewing decreases.And the luminous intensity of the environment light source 93 it is higher when, it is unclear that degree increase therewith,
The eyes 94 of viewer get over the image that can not see clear distinctness.In addition, in there are the occasion of environment light source 93, it is necessary to increase
The brightness for adding the projection arrangement 91 keeps the image light projected brighter, still, increases the brightness effects of the projection arrangement 91
It is limited, the problem of viewing quality can not be effectively improved, and the consumption of electric power can be increased.Above-described condition limitation, makes the throwing
Shadow screen 90 must be used in the image that high image quality and high contrast could be provided in the weaker occasion of ambient light, and then limit
The selection of 90 place to use of projection screen.
Utility model content
It must be used in dim occasion for projection screen known in solution, and the problems such as ceiling generates multiple shadow, this
Utility model proposes a kind of high contrast projection screen, the high contrast projection screen under the occasion with environment light beam still
It can show clear and high contrast image, also will not visually cause brightness inadequate because of the influence of environment light beam,
Meanwhile using the microstructure design of prism structure, the multiple shadow imaging generated on the ceiling can be effectively eliminated, viewing image is increased
When quality.
To reach above-mentioned purpose, the utility model provides a kind of high contrast projection screen, it includes：
One basal layer, it includes one first face and one second face, which is oppositely arranged with second face；
Multiple prism structures are formed in first face of the basal layer；
Multiple extinction areas, respectively the extinction area is made of first face that the basal layer appears, and respectively the extinction area is located at
Between the adjacent prism structure.
High contrast projection screen as described above, wherein respectively the cross section of the prism structure is triangular structure, including
One plane of incidence, an acting surface and a bottom surface form one first angle of inclination, the plane of incidence wherein between the plane of incidence and horizontal line
Inclined slope is negative slope, and one second angle of inclination, the inclined slope of the acting surface are formed between the acting surface and horizontal line
For positive slope.
High contrast projection screen as described above, the acting surface have one first length, which is set to the substrate
First face of layer.
High contrast projection screen as described above, respectively for the prism structure with a reflecting layer, which is set to this
On acting surface, and positioned at the top of the acting surface, it is first length which, which has one second length, second length,
57%~66%.
High contrast projection screen as described above, is filled with multiple light absorption particles in the prism structure.
High contrast projection screen as described above, the prism structure are transparent configuration.
High contrast projection screen as described above, the basal layer are a black basal layer.
Such prism structure has a plane of incidence and a reflecting layer, can not only absorb environment light beam, reduces environment light beam pair
In the influence of viewer, which can will more be projected to the eyes of viewer, enable viewer in the image set of projection arrangement
Watch more visible image.And such light absorption particle is utilized, environment light beam can be effectively absorbed, reduces environment light beam through throwing
Shadow screen reflexes to the eyes of viewer, and the light received by viewer's eyes is allowed to be largely the light of image, Jin Erti
The clarity and contrast of high image, achieve the effect that high contrast.
It, can be effectively by this when environment light beam is after the prism structure in addition, the basal layer of black can be used in the basal layer
Basal layer is absorbed, and the comparison degree of image can be also improved.
In a further preferred embodiment, which is transparent configuration；Each prism structure is saturating more than 1.4 by refractive index
Bright structure is formed, and after allowing environment light beam to enter each prism structure, can be refracted and be absorbed into basal layer, without again
It is reflected onto environment, increases comparison degree and the clarity of image.
And the acting surface and horizontal angle of inclination in such prism structure are utilized, projection arrangement can largely be projected
Image reflex in the eyes of viewer, can effectively avoid generating multiple shadow imaging on the ceiling, reduce multiple shadow for viewing
The annoyance level of person.
Description of the drawings
The following drawings is only intended in doing schematic illustration and explanation to the utility model, does not limit the model of the utility model
It encloses.Wherein：
Fig. 1：The first embodiment schematic diagram of the high contrast projection screen of the utility model.
Fig. 2：The prism structure schematic diagram of the utility model.
Fig. 3：The second embodiment schematic diagram of the utility model.
Fig. 4：The application schematic diagram that well known projection screen cooperation short focus projector uses.
Fig. 5：Well known projection screen is used in the application schematic diagram of environment light beam.
Specific implementation mode
The preferred embodiment for coordinating attached drawing and the utility model below, it is to reach to make a reservation in fact that the utility model, which is expanded on further,
The technological means taken with novel purpose.
Fig. 1 is referred to, the utility model is a kind of high contrast projection screen, it includes：One basal layer 10, multiple prisms
Structure 20 and multiple extinction areas 14.
There is the basal layer 10 one first face 11 and one second face 12, first face 11 to be oppositely arranged with second face 12,
In the first embodiment of the utility model, which is a black basal layer；Such prism structure 20 is set to the base
On first face 11 of bottom 10, as shown in Figure 1, such prism structure 20 from top to bottom arranges.
Fig. 2 is referred to, the cross section of each prism structure 20 is triangular structure, it is regarded from cross section, including a plane of incidence
21, an acting surface 23 and a bottom surface 25, the bottom surface 25 are set on first face 11 of the basal layer 10, the plane of incidence 21 and water
One first tilt angle theta 1 is formed by between horizontal line H, it is negative slope form, the acting surface to make the 21 inclined slope of the plane of incidence
One second tilt angle theta 2 is formed by between 23 and horizontal line H, then it is positive slope form to make the 23 inclined slope of acting surface,
And be in reversed dip with the plane of incidence 21, and the angle clamped by the plane of incidence 21 and the acting surface 23 is first angle of inclination
Angles and (θ 1+ θ 2) of the θ 1 plus second tilt angle theta 2.The acting surface 23 has one first length L1, and in the acting surface
A reflecting layer 27 is further formed on 23.In the first preferred embodiment of this creation, such prism structure 20 is to mix
There is the material of light absorption particle 29 to be made, therefore is distributed with light absorption particle 29 inside each prism structure 20.
It maintains to have a gap and expose the basal layer 10 in the present embodiment, between such adjacent prism structures 20, with this
Gap constitutes the extinction area 14, specifically, for a prism structure 20, an extinction area 14, a prism structure 20, an extinction area 14 ...
Alternate mode sequential concentric circle best-fit or can also be arranged in distribution form at random, and spread pattern can be according to live ring
Border demand is arranged, with the high contrast for reaching projection image and in bright gay color effect.
The reflecting layer 27 is formed partially on the acting surface 23, and wherein the reflecting layer 27 has more one second length L2,
In one preferred embodiment, which is formed in the position relatively above of the acting surface 23, and (reflecting layer 27 is set to effect
Face 23 is close to the side of the plane of incidence 21), and 57%~66% that second length L2 is first length L1.In addition, the reflection
Layer 27 is set on the acting surface 23, and wherein the reflecting layer 27 can be a chalk dope layer, pearl ink dope layer, silver inks coating
Layer or dope layer with high reflectivity.
Such light absorption particle 29 is distributed in such prism structure 20, and in a preferred embodiment, such light is inhaled
The total volume for receiving particle 29 accounts for the 0.5%~3% of 20 volume of such prism structure, and the diameter of such light absorption particle 29 is about
Between 1 micron to 30 microns, wherein such light absorption particle 29 can be black particles.Further, such light is inhaled
Receiving particle 29 can be made of elemental carbon (C) particle, since carbon particle is black, can improve the ability from ambient light of absorption,
Enter the ratio of viewer's eyes to reduce ambient light after high contrast projection screen reflection.
Refer to Fig. 1, it is however generally that, which can be set up in a projection environment, the projection environment
Including an at least projection arrangement 40 and at least an environment light source 60, the wherein projection arrangement 40 can be short focus projector, it should
Environment light source 60 can be indoor illuminator or the sunlight from outdoor.As shown in Figure 1, when the projection arrangement 40 produces
When a raw projected light beam to high contrast projection screen, which can first be projected to the reflecting layer 27, then anti-through this
Penetrate the eyes 80 for entering viewer after layer 27 reflects.And also generation environment light beam to the high contrast projects silver to the environment light source 60
When curtain, which can enter those prism structures 20 via those planes of incidence 21, and by 29 institute of such light absorption particle
It absorbs, or enters those prism structures 20 through the plane of incidence 21 after those reflecting layer 27 are reflected, it equally can be by such light
Absorbing particle 29 is absorbed.Since such light absorption particle 29 can effectively absorb the environment light beam, such ambient light can be reduced
Influence of the beam for viewer's eyes 80, the opposite comparison degree and clarity for improving the projected light beam.
In addition, by adjusting second tilt angle theta 2 is formed by between the acting surface 23 and horizontal line H, the projection is allowed
The light-emitting angle of light beam can be maintained in the range of visibility of viewer, and the projected light beam is avoided to reflex to ceiling, be reduced in day
Card generates the probability of multiple shadow.
Fig. 3 is referred to, is the second embodiment of the utility model, different from the first embodiment point is each prism structure
20 use transparent configuration, wherein the refractive index of each prism structure 20 is more than 1.4.
As shown in figure 3, in the present embodiment, which can be entered those prism structures 20 by those planes of incidence 21, and
The basal layer 10 is refracted to by such prism structure 20, is finally absorbed by the basal layer 10.Such extinction area 14 is similarly positioned in
Between such prism structure 20.When such environment light beam exposes to the high contrast projection screen, such extinction area 14 can inhale
Such environment light beam from the environment light source 60 is received, and the basal layer 10 is the basal layer of black, when such environment light source is straight
It taps into the basal layer 10, can effectively be absorbed by the basal layer 10, can also increase the readability of image.
The utility model increases prism structure 20 and extinction area 14 on original projection screen, can effectively absorb ring
Border light beam reduces the amount that environment light beam enters viewer's eyes, and then improves comparison degree, provides high contrast and fine definition
Image.In addition, light absorption particle 29 can be filled in each prism structure 20, is absorbed using light absorption particle 29 and come from environment
The light of light source.
In addition, because the transparent configuration that refractive index is more than 1.4 can be used in each prism structure 20, environment light beam can be refracted to
The basal layer 10, which can be absorbed, and can also reduce influence of the ambient light to viewer, while improving contrast journey
Degree.
The above is taken a broad view of, which is not necessary to turn off the light or by curtain pull-up when using degree indoors than projection screen, one
As have high contrast, clear and bright image can be also provided in the environment of light, or even in bright environment, do not need yet
The projection device for deliberately using high brightness can show clear projection image using the utility model, and the high contrast is made to throw
Shadow screen can flexibly be used in a variety of different occasions.In addition, due to the use of the high contrast projection screen, need not especially seek
The weak occasion of environment optrode is looked for or createed, is also avoided that eyes regard object under the situation of insufficient light, reduces visual problems production
Raw risk.
The above is only the preferred embodiment of the utility model, is not done in any form to the utility model
Limitation, although the utility model has been disclosed with preferred embodiment as above, is not limited to the utility model, this field skill
Art personnel, in the range of not departing from technical solutions of the utility model, when the technology contents using the disclosure above make it is a little
The equivalent embodiment of equivalent variations is changed or is modified to, as long as being the content without departing from technical solutions of the utility model, according to this
The technical spirit of utility model still falls within this reality to any simple modification, equivalent change and modification made by above example
With novel protection domain.
Claims (7)
1. a kind of high contrast projection screen, which is characterized in that the high contrast projection screen includes：
One basal layer, it includes one first face and one second face, which is oppositely arranged with second face；
Multiple prism structures are formed in first face of the basal layer；
Multiple extinction areas, respectively the extinction area be made of first face that the basal layer appears, and respectively the extinction area be located at it is adjacent
Between the prism structure.
2. high contrast projection screen according to claim 1, which is characterized in that the wherein each cross section of the prism structure
For triangular structure, including a plane of incidence, an acting surface and a bottom surface, form one first wherein between the plane of incidence and horizontal line
Angle of inclination, the inclined slope of the plane of incidence are negative slope, and one second angle of inclination is formed between the acting surface and horizontal line, should
The inclined slope of acting surface is positive slope.
3. high contrast projection screen according to claim 2, which is characterized in that the acting surface has one first length,
The bottom surface is set to first face of the basal layer.
4. high contrast projection screen according to claim 3, which is characterized in that respectively the prism structure has a reflection
Layer, which is set on the acting surface, and positioned at the top of the acting surface, which has one second length, this
Two length are the 57%~66% of first length.
5. high contrast projection screen according to claim 4, which is characterized in that filled with multiple in the prism structure
Light absorption particle.
6. high contrast projection screen according to claim 4, which is characterized in that the prism structure is transparent configuration.
7. high contrast projection screen according to claim 5 or 6, which is characterized in that the basal layer is a fast black base bottom
Layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820317784.4U CN207867207U (en) | 2018-03-08 | 2018-03-08 | High contrast projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820317784.4U CN207867207U (en) | 2018-03-08 | 2018-03-08 | High contrast projection screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207867207U true CN207867207U (en) | 2018-09-14 |
Family
ID=63456136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820317784.4U Active CN207867207U (en) | 2018-03-08 | 2018-03-08 | High contrast projection screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207867207U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557759A (en) * | 2018-12-10 | 2019-04-02 | 江阴通利光电科技有限公司 | A kind of anti-light curtain and preparation method thereof |
| CN109634045A (en) * | 2018-12-10 | 2019-04-16 | 江阴通利光电科技有限公司 | Anti-light curtain of a kind of change spacing and preparation method thereof |
| CN109752912A (en) * | 2019-02-26 | 2019-05-14 | 江阴通利光电科技有限公司 | A kind of anti-light curtain of hair line and preparation method thereof |
| CN111338174A (en) * | 2020-04-09 | 2020-06-26 | 江苏慧智新材料科技有限公司 | High-contrast scratch-resistant projection screen for laser projection and manufacturing method thereof |
| CN111999978A (en) * | 2020-08-31 | 2020-11-27 | 青岛国骐光电科技有限公司 | Laser projection screen manufacturing method and laser projection screen |
| CN112666786A (en) * | 2020-12-02 | 2021-04-16 | 东莞市澳星视听器材有限公司 | Light-resistant screen and manufacturing method thereof |
-
2018
- 2018-03-08 CN CN201820317784.4U patent/CN207867207U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109557759A (en) * | 2018-12-10 | 2019-04-02 | 江阴通利光电科技有限公司 | A kind of anti-light curtain and preparation method thereof |
| CN109634045A (en) * | 2018-12-10 | 2019-04-16 | 江阴通利光电科技有限公司 | Anti-light curtain of a kind of change spacing and preparation method thereof |
| CN109752912A (en) * | 2019-02-26 | 2019-05-14 | 江阴通利光电科技有限公司 | A kind of anti-light curtain of hair line and preparation method thereof |
| CN109752912B (en) * | 2019-02-26 | 2024-04-16 | 江阴通利光电科技有限公司 | Light-proof curtain cloth with hairline and preparation method thereof |
| CN111338174A (en) * | 2020-04-09 | 2020-06-26 | 江苏慧智新材料科技有限公司 | High-contrast scratch-resistant projection screen for laser projection and manufacturing method thereof |
| CN111338174B (en) * | 2020-04-09 | 2021-04-16 | 江苏慧智新材料科技有限公司 | High-contrast scratch-resistant projection screen for laser projection and manufacturing method thereof |
| CN111999978A (en) * | 2020-08-31 | 2020-11-27 | 青岛国骐光电科技有限公司 | Laser projection screen manufacturing method and laser projection screen |
| CN112666786A (en) * | 2020-12-02 | 2021-04-16 | 东莞市澳星视听器材有限公司 | Light-resistant screen and manufacturing method thereof |
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