CN212009273U - Optical light-resistant screen based on built-in gray grating - Google Patents
Optical light-resistant screen based on built-in gray grating Download PDFInfo
- Publication number
- CN212009273U CN212009273U CN202021244410.8U CN202021244410U CN212009273U CN 212009273 U CN212009273 U CN 212009273U CN 202021244410 U CN202021244410 U CN 202021244410U CN 212009273 U CN212009273 U CN 212009273U
- Authority
- CN
- China
- Prior art keywords
- light
- layer
- projection
- gray
- screen according
- 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
- 230000003287 optical effect Effects 0.000 title claims description 5
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000031700 light absorption Effects 0.000 abstract description 25
- 238000003384 imaging method Methods 0.000 abstract description 11
- 230000002265 prevention Effects 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 5
- 210000001525 retina Anatomy 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 4
- 230000004313 glare Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Images
Landscapes
- Overhead Projectors And Projection Screens (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The utility model discloses an optics light resistance screen based on built-in grey bars, including antiglare layer, anti-blue light filter layer, reflector layer, the light shield layer that sets gradually, the reflector layer includes a plurality of anti-light units that the array set up, anti-light unit includes high reflection stratum and the light absorption layer that connects gradually, be provided with grey bars on the light absorption layer; the efficient reflection imaging of the projection light is realized, meanwhile, the environment light is effectively absorbed, the influence of the environment light on the projection light is avoided, and high-brightness and high-quality projection imaging is realized.
Description
Technical Field
The utility model belongs to the technical field of projection screen, concretely relates to anti light screen of optics based on built-in grey bars.
Background
Traditional projection screen carries out reflection formation of image to projection light through setting up the reflector layer, but when the in-service use projection screen, incident to projection screen not only projection light, also come from external ambient light. The reflective layer also reflects ambient light when reflecting projection light, and then causes ambient light to cause the influence to projection light for final projection imaging's luminance and quality all receive the influence. Therefore, there is the defect that projection luminance and quality receive the ambient light influence easily to traditional projection screen, the utility model discloses an optical light resisting screen based on built-in grey bars.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an anti light screen of optics based on built-in grey bars reflects the formation of image to projection light through setting up the high reflection stratum, sets up the light-absorption layer simultaneously and sets up grey bars on the light-absorption layer, carries out effective absorption to ambient light through light-absorption layer and grey bars, and then promotes the luminance and the quality of final projection formation of image.
The utility model discloses a following technical scheme realizes:
the utility model provides an anti-light screen of optics based on built-in grey bars, is including the anti-dazzle layer, the anti-blue light filter layer, reflector layer, the light shield layer that set gradually, a plurality of anti light units that the reflector layer set up including the array, anti light unit is including the high reflection stratum and the light absorption layer that connect gradually, be provided with grey bars on the light absorption layer.
The projection light sequentially passes through the anti-glare layer, the blue light prevention filter layer, the reflective layer and the light shielding layer, and the anti-glare layer is a fog surface structure and is used for scattering the projection light, so that glare is effectively avoided; the blue light prevention filter layer filters a part of blue light in the projection light, so that the retina of a viewer is prevented from being damaged by a large amount of blue light; then the projection light passes through the reflecting layer, because the projection light is basically direct or obliquely emitted at a small angle, the projection light enters human eyes for imaging after being reflected by the high reflecting layer, and the environmental light from the oblique upper part mixed in the projection light is incident to the light absorbing layer made of light absorbing material and is absorbed by the light absorbing layer and the dust grids on the light absorbing layer, and the environmental light is absorbed through the cooperation of the light absorbing layer and the dust grids, so that more than 95% of the environmental light can be absorbed, the influence of the environmental light on the projection light is effectively avoided, and the projection brightness is greatly improved; the shading layer is used for shading the back of the screen from light, and the influence of the back of the screen from light on projection light is avoided.
For better realization the utility model discloses, furtherly, the ash bars are linear arrangement and set up on the light-absorption layer, and the ambient light part is incided to the ash bars, and another part ambient light incides to the light-absorption layer between the adjacent ash bars, and the ash bars through linear arrangement and light-absorption layer absorb light in coordination, can absorb the ambient light more than 95%, and greatly reduced ambient light is to projection light's influence, and then effectively improves projection brightness.
To better realize the present invention, further, the spacing distance between the adjacent gray grids is 160 μm.
In order to better realize the utility model, further, the refractive index of grey grid is 1.49.
In order to better realize the utility model, furthermore, the included angle between the high reflection layer and the vertical direction is 10-15 degrees, and the included angle between the light absorption layer and the vertical direction is 60-65 degrees.
In order to better realize the present invention, further, the thickness of the anti-glare layer is 8 μm to 10 μm, and the haze of the anti-glare layer is 50 ° to 88 °.
In order to better realize the utility model, furthermore, the thickness of the blue light prevention filter layer is 8 μm-10 μm, the light transmittance is 50% -65%, and the refractive index is 1.49.
In order to better realize the utility model, furthermore, still be provided with from the type membrane on one side of light shield layer, the thickness from the type membrane is 20 mu m-25 mu m.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
(1) the utility model discloses a setting constitutes anti light unit by the high reflection stratum and the light-absorbing layer that connect gradually, constitutes the reflector layer through arranging a plurality of anti light unit linearity simultaneously, when projection light passes through the reflector layer, projection light passes through the reflection formation of image of high reflection stratum, and ambient light is through light-absorbing layer and grey bars cooperative absorption, effectively weaker ambient light to the influence of projection light, and then effectively increase the luminance and the quality of final projection formation of image;
(2) the utility model discloses a set gradually anti-dazzle layer, prevent the blue light filter layer, the reflector layer, the light shield layer, carry out the diffusion in order to prevent the glare projection light through anti-dazzle layer, filter the retina in order to protect the sight shadow person through the blue light of preventing the blue light filter layer in to projection light, effectively weaken the luminance and the quality of ambient light in order to increase projection formation of image when through the high-efficient reflection projection light of reflector layer, shelter from the influence of screen back incoming light in order to avoid the screen back incoming light to projection light through the light shield layer, effectively guarantee projection formation of image quality.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural diagram of a light-resisting unit;
FIG. 3 is a schematic view of an overall screen structure with arc-shaped high-reflection layer and light-absorbing layer;
fig. 4 is a schematic view of a light-resisting unit structure with arc-shaped high-reflection layer and light-absorbing layer.
Wherein: 1-an antiglare layer; 2-blue light prevention filter layer; 3-a light-reflecting layer; 4-a light-shielding layer; 5-a light-resistant unit; 6-gray grid; 7-a release film; 01-high reflection layer; 02-light absorbing layer.
Detailed Description
Example 1:
an optics of this embodiment is able to resist light screen based on built-in grey bars, as shown in fig. 1-4, including antiglare layer 1, blue light prevention filter layer 2, reflector layer 3, the light shield layer 4 that set gradually, reflector layer 3 includes a plurality of anti light units 5 that the array set up, anti light unit 5 is including high reflection stratum 01 and the light-absorbing layer 02 that connect gradually, be provided with grey bars 6 on the light-absorbing layer 02.
The projection light sequentially passes through the anti-glare layer 1, the anti-blue light filter layer 2 and the reflective layer 3, the anti-glare layer 1 is of a fog surface structure, and the projection light is diffused after passing through the anti-glare layer 1 so as to increase the incident angle of the projection light; then the projection light passes through the blue light prevention filter layer 2, the blue light prevention filter layer 2 can filter part of blue light in the projection light and reserve the rest projection light, and the damage of the blue light to the retina of a viewer is reduced by weakening the blue light; then the projection light is incident to the reflecting layer 3; the light shielding layer 4 is used for shielding light from the back of the screen, and avoiding the influence of light coming from the back of the screen on projection light.
As shown in fig. 1 and fig. 2, the light reflecting layer 3 includes a plurality of light-resistant units 5 arranged in an array from top to bottom in sequence, the light-resistant units 5 include a high reflecting layer 01 and a light-absorbing layer 02 which are connected in sequence from top to bottom at an obtuse angle, the light-absorbing layer 02 is arranged at the bottom of the high reflecting layer 01, and the high reflecting layer 01 and the light-absorbing layer 02 are both arranged at a certain angle with the vertical direction. The surface of the high reflection layer 01 is provided with a reflection material coating such as an aluminum film for reflecting projection light, and the surface of the light absorption layer 02 is provided with a black light absorption material coating for absorbing ambient light.
The projection light is incident to the high reflection layer 01 to be reflected and enter human eyes for imaging, and the ambient light from the upper part of the projection light is incident to the light absorption layer 02 and is absorbed by the light absorption layer 02 and the gray grating 6 on the light absorption layer 02, so that the influence of the ambient light on the projection light is greatly reduced, and the final imaging brightness and the imaging quality of the projection light are effectively improved.
Furthermore, the length of the high reflection layer 01 is larger than that of the light absorption layer 02, and more projection light can be reflected by increasing the length of the high reflection layer 01, so that the final imaging quality is ensured.
Further, as shown in fig. 3 and 4, the incident surface of the high reflection layer 01 is an arc shape protruding toward the projection light, and the incident surface of the light absorption layer 02 is an inward concave arc shape. The incident surface of the high-reflection layer 01 is arranged into an arc shape protruding outwards, so that the imaging range of the projection light after diffusion reflection is larger when the projection light is incident to the high-reflection layer 01, and a wider imaging visual field is obtained finally; meanwhile, the absorption layer 02 is arranged to be concave arc-shaped, so that the ambient light is converged when the ambient light enters the absorption layer 02, and the ambient light can be absorbed more effectively.
Further, the gray grids 6 are linearly arranged on the light absorption layer 02, the spacing distance between adjacent gray grids 6 is 100 micrometers-160 micrometers, the refractive index of the gray grids 6 is 1.49, and the gray grids 6 are made of black light absorption materials or gray light absorption materials.
Example 2:
the present embodiment is further optimized on the basis of embodiment 1, an included angle between the high reflection layer 01 and the vertical direction is 10 ° to 15 °, and an included angle between the light absorption layer 02 and the vertical direction is 60 ° to 65 °.
The smaller the included angle between the high reflection layer 01 and the vertical direction is, the closer the high reflection layer 01 is to the vertical state, and the more projection light rays can be reflected by the high reflection layer 01. However, the highly reflective layer 01 cannot be set in a completely vertical state, and too small an angle between the highly reflective layer 01 and the vertical direction may increase an angle between the light absorbing layer 02 and the vertical direction, thereby reducing absorption of ambient light above the light absorbing layer 02. Therefore, the included angle between the high reflection layer 01 and the vertical direction is 10-15 degrees, and the included angle between the light absorption layer 02 and the vertical direction is 60-65 degrees, which is the optimal included angle range.
Further, the included angle between the high reflection layer 01 and the vertical direction is 10 °, the included angle between the light absorption layer 02 and the vertical direction is 60 °, and the included angle between the high reflection layer 01 and the light absorption layer 02 is 110 °.
Other parts of this embodiment are the same as embodiment 1, and thus are not described again.
Example 3:
the embodiment is further optimized on the basis of the embodiment 1 or 2, the thickness of the anti-glare layer 1 is 8 μm to 10 μm, the anti-glare layer 1 is made of a transparent PET material, a plurality of diffuse reflection particles are arranged on the incident surface of the anti-glare layer 1 to form a matte structure, and the haze is 50 degrees to 88 degrees.
The projection light can be effectively diffused after passing through the anti-glare layer 1, so that the incident angle of the projection light is increased, meanwhile, the fog surface structure of the anti-glare layer 1 can diffuse the projection light, glare is effectively prevented, and the final imaging quality is ensured.
The rest of this embodiment is the same as embodiment 1 or 2, and therefore, the description thereof is omitted.
Example 4:
this embodiment is further optimized on the basis of any of the above embodiments 1 to 3, the thickness of the blue light prevention filter layer 2 is 8 μm to 10 μm, the blue light prevention filter layer 2 is made of a transparent PET material, the transparent PET material is mixed with a blue light filtering paint, the light transmittance of the blue light prevention filter layer 2 is 50% to 65%, and the refractive index is 1.49.
A large amount of blue light can cause the damage to sight shadow person's retina, consequently sets up and prevents that blue light filter layer 2 can filter the partial blue light in the projection light, effectively protects sight shadow person's retina.
Other parts of this embodiment are the same as any of embodiments 1 to 3, and thus are not described again.
Example 5:
the present embodiment is further optimized on the basis of any of the above embodiments 1 to 4, as shown in fig. 1 and 3, a release film 7 is further disposed on one side of the light shielding layer 4, and the thickness of the release film 7 is 20 μm to 25 μm; release film 7 is PET release film, through effectively protecting whole screen structure from type film 7.
Other parts of this embodiment are the same as any of embodiments 1 to 4, and thus are not described again.
The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.
Claims (8)
1. The utility model provides an anti-light screen of optics based on built-in grey bars, is including anti-dazzle layer (1), anti-blue light filter layer (2), reflector layer (3), light shield layer (4) that set gradually, its characterized in that, a plurality of anti-light unit (5) that reflector layer (3) set up including the array, anti-light unit (5) are including high reflection stratum (01) and light-absorbing layer (02) that connect gradually, be provided with grey bars (6) on light-absorbing layer (02).
2. The screen according to claim 1, wherein the gray grid (6) is arranged on the light absorbing layer (02) in a linear arrangement.
3. The screen according to claim 2, wherein the distance between adjacent gray grids (6) is 160 μm.
4. The screen according to claim 3, wherein the refractive index of the gray grid (6) is 1.49.
5. The screen according to any of claims 1 to 4, wherein the angle between the highly reflective layer (01) and the vertical is 10 ° to 15 °, and the angle between the light absorbing layer (02) and the vertical is 60 ° to 65 °.
6. The optical screen according to any one of claims 1 to 4, wherein the thickness of the anti-glare layer (1) is 8 μm to 10 μm, and the haze of the anti-glare layer (1) is 50 ° to 88 °.
7. An optical screen based on a built-in gray grating as claimed in any one of claims 1 to 4, characterized in that the blue light-blocking filter layer (2) has a thickness of 8 μm to 10 μm, a light transmission of 50% to 65% and a refractive index of 1.49.
8. The screen according to any of claims 1 to 4, wherein a release film (7) is further disposed on one side of the light shielding layer (4), and the thickness of the release film (7) is 20 μm to 25 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021244410.8U CN212009273U (en) | 2020-06-30 | 2020-06-30 | Optical light-resistant screen based on built-in gray grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021244410.8U CN212009273U (en) | 2020-06-30 | 2020-06-30 | Optical light-resistant screen based on built-in gray grating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212009273U true CN212009273U (en) | 2020-11-24 |
Family
ID=73402750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021244410.8U Active CN212009273U (en) | 2020-06-30 | 2020-06-30 | Optical light-resistant screen based on built-in gray grating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212009273U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114624950A (en) * | 2022-03-14 | 2022-06-14 | 浙江宇立新材料有限公司 | A method of making a high-brightness projection screen |
-
2020
- 2020-06-30 CN CN202021244410.8U patent/CN212009273U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114624950A (en) * | 2022-03-14 | 2022-06-14 | 浙江宇立新材料有限公司 | A method of making a high-brightness projection screen |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104076589A (en) | Positive projection optical screen projection system short in projection distance | |
| CN104062839B (en) | A kind of optical projection system with forward projection's optical screen | |
| US7990614B2 (en) | Projection screen | |
| US20150055235A1 (en) | Optical sheet controlling external light, display device and method for producing optical sheet | |
| CN214335425U (en) | Prevent leading light source display module assembly of blue light | |
| CN210894983U (en) | Anti-light screen structure based on linear Fresnel lens | |
| CN212009273U (en) | Optical light-resistant screen based on built-in gray grating | |
| CN102037405A (en) | Transmissive screen and diffusion plate | |
| JP2011150327A (en) | Optical sheet and display device provided with optical sheet | |
| CN204009335U (en) | The optical projection system of a kind of short projection distance forward projection optical screen | |
| CN110928131A (en) | Projection screen with positive projection black grid | |
| CN109557760A (en) | A kind of off-axis short focus orthographic projection optical screen and optical projection system | |
| CN208796009U (en) | A kind of black grid structure prism screen | |
| CN208780896U (en) | A kind of spurious rays elimination imaging lens | |
| US11579343B2 (en) | Method and apparatus that provide matte effect while allowing high resolution output from a display | |
| CN214122676U (en) | Optical orthographic projection screen | |
| CN216848221U (en) | High-transmittance peep-proof film | |
| CN214846223U (en) | Light-resistant projection curtain | |
| CN214122678U (en) | Light-resistant orthographic projection screen | |
| CN213986964U (en) | Spacer ring, lens module and electronic equipment | |
| CN109445241A (en) | A kind of off-axis short focus optical projection screen and optical projection system | |
| CN212163461U (en) | Camera assembly and monitoring equipment | |
| CN215833754U (en) | Projection screen | |
| JP2022025984A (en) | Transparent screen system | |
| US20020093606A1 (en) | Display filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |