CN117518699A - Linear anti-light rear projection optical imaging film - Google Patents
Linear anti-light rear projection optical imaging film Download PDFInfo
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- CN117518699A CN117518699A CN202311670585.3A CN202311670585A CN117518699A CN 117518699 A CN117518699 A CN 117518699A CN 202311670585 A CN202311670585 A CN 202311670585A CN 117518699 A CN117518699 A CN 117518699A
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- layer
- light
- imaging
- adhesion promoting
- linear
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- 238000012634 optical imaging Methods 0.000 title claims abstract description 33
- 238000003384 imaging method Methods 0.000 claims abstract description 65
- 230000001737 promoting effect Effects 0.000 claims abstract description 49
- 239000000758 substrate Substances 0.000 claims abstract description 25
- 238000002834 transmittance Methods 0.000 claims description 18
- 230000003287 optical effect Effects 0.000 claims description 9
- 239000012780 transparent material Substances 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 8
- 230000004313 glare Effects 0.000 claims description 5
- 235000012239 silicon dioxide Nutrition 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 239000004408 titanium dioxide Substances 0.000 claims description 4
- 230000007613 environmental effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 18
- 239000010408 film Substances 0.000 description 29
- 230000008859 change Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1814—Diffraction gratings structurally combined with one or more further optical elements, e.g. lenses, mirrors, prisms or other diffraction gratings
Abstract
The application discloses a linear anti-light rear projection optical imaging film, which comprises a substrate layer, a first adhesion promoting base coat, a second adhesion promoting base coat, a linear grating layer and an imaging layer, wherein one side surface of the substrate layer is provided with the first adhesion promoting base coat, the other side surface is provided with the second adhesion promoting base coat, the linear grating layer is arranged on the first adhesion promoting base coat, and the imaging layer is arranged on the second adhesion promoting base coat; the substrate layer is used for integrally carrying the linear grating layer and the imaging layer through the first adhesion promoting primer layer and the second adhesion promoting primer layer and is light-permeable; an imaging layer for duplex imaging; and the linear grating layer is used for directionally refracting the light source of the projector to resist light. Therefore, not only can double-sided imaging be realized, but also the light source of the projector can be subjected to directional refraction, the light-resistant effect is achieved, and the imaging effect is clearer and the color is bright.
Description
Technical Field
The present application relates to the field of rear projection optical imaging films, and more particularly to a linear light-resistant rear projection optical imaging film.
Background
The rear projection optical imaging film is a film optical imaging film for a projection system, is usually placed between a light source of a projector and a projection screen, and can also be attached to glass and a transparent acrylic plate for use. The film has a wide application range, and can be used in the fields of commercial display, education and training, and the like, and also can be used in occasions such as home entertainment, conference lectures, and the like.
Currently, there are problems with existing rear projection optical imaging films. First, they are often not effective against the effects of ambient light, which can lead to unclear imaging and poor viewing. This means that the user cannot adequately show, demonstrate or advertise the content. Second, they typically can only achieve single-sided imaging, and cannot achieve double-sided imaging, which limits their range of applications in certain scenarios.
Disclosure of Invention
The present application aims to solve, at least to some extent, one of the technical problems in the related art.
Therefore, an object of the present application is to provide a linear anti-light rear projection optical imaging film, which not only can image on two sides, but also can perform directional refraction on a light source of a projector, so as to achieve an anti-light effect, so that an imaging effect is clearer and a color is vivid.
To achieve the above object, an embodiment of a first aspect of the present application provides a linear anti-light rear projection optical imaging film, including a substrate layer, a first adhesion promoting primer layer, a second adhesion promoting primer layer, a linear grating layer, and an imaging layer, where one side of the substrate layer is provided with the first adhesion promoting primer layer, the other side is provided with the second adhesion promoting primer layer, the linear grating layer is disposed on the first adhesion promoting primer layer, and the imaging layer is disposed on the second adhesion promoting primer layer; wherein the substrate layer is used for integrally carrying the linear grating layer and the imaging layer through the first adhesion promoting primer layer and the second adhesion promoting primer layer and is light-permeable; the imaging layer is used for double-sided imaging; the linear grating layer is used for carrying out directional refraction on a light source of the projector so as to resist light.
The linear anti-light rear projection optical imaging film can realize double-sided imaging, can perform directional refraction on the light source of the projector, and has an anti-light effect, so that the imaging effect is clearer and the color is bright.
In addition, the linear anti-light rear projection optical imaging film proposed in the application can also have the following additional technical characteristics:
in one embodiment of the present application, the imaging layer comprises a primary imaging layer and an antiglare layer, wherein the primary imaging layer is disposed on the second adhesion promoting primer layer for clear and color-vivid imaging; the anti-dazzle layer is arranged on the main imaging layer and is used for uniformly scattering a light source of the projector and eliminating glare caused by ambient light.
In one embodiment of the present application, the substrate layer is an optical grade BOPET (Biaxially Oriented Polyethylene Terephthalate, biaxially oriented polyester film) substrate layer having a thickness of 100 μm.
In one embodiment of the present application, the first adhesion promoting primer layer and the second adhesion promoting primer layer are both aqueous environmental protection primers.
In one embodiment of the present application, the linear grating layer is made of a high-transmittance optical grade transparent material, the color is transparent gray, and the grating section angle is 45 ° and is isosceles triangle.
In one embodiment of the present application, the high-transmittance optical-grade transparent material is added with nm (nano) grade black paste, and the addition amount is 0.2% -0.5%.
In one embodiment of the present application, the main imaging layer is added with nm-level titanium dioxide, nm-level silicon dioxide and nm-level black paste, and the light transmittance is adjusted to 15% -25%, and the haze is adjusted to 55% -70%.
In one embodiment of the present application, the anti-glare layer is an optical transparent material, the surface of the anti-glare layer is a nm-level microstructure, the light transmittance is adjusted to 75% -85%, and the haze is adjusted to 25% -30%.
Additional aspects and advantages of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic view of a linear anti-light rear projection optical imaging film according to one embodiment of the present application in use;
FIG. 2 is a schematic structural view of a linear anti-light rear projection optical imaging film according to one embodiment of the present application;
fig. 3 is a schematic cross-sectional structure of a linear grating layer according to one embodiment of the present application.
As shown in the figure: 10. a substrate layer; 20. a first adhesion promoting primer layer; 30. a second adhesion promoting primer layer; 40. a linear grating layer; 50. an imaging layer; 51. a main imaging layer; 52. an anti-glare layer.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application. On the contrary, the embodiments of the present application include all alternatives, modifications, and equivalents as may be included within the spirit and scope of the appended claims.
The following describes linear light-resistant rear projection optical imaging films of embodiments of the present application with reference to the accompanying drawings.
As shown in fig. 1-3, a linear anti-light rear projection optical imaging film of an embodiment of the present application may include a substrate layer 10, a first adhesion promoting primer layer 20, a second adhesion promoting primer layer 30, a linear grating layer 40, and an imaging layer 50.
Wherein, the substrate layer 10 is provided with a first adhesion promoting primer layer 20 on one side and a second adhesion promoting primer layer 30 on the other side, the linear grating layer 40 is disposed on the first adhesion promoting primer layer 20, and the imaging layer 50 is disposed on the second adhesion promoting primer layer 30.
In the present example, the substrate layer 10 may be an optical grade BOPET substrate layer, which may have a thickness of 100 μm. It should be noted that the BOPET itself described in this example is a substrate, and has relatively good strength and flatness. The projection film has a high flatness requirement, so BOPET is selected as the substrate. The tensile force on the projection film is considered in the later screen installation, so that the thickness of 100 microns is selected, and the subsequent film is prevented from deformation after receiving the tensile force. In addition, rear projection films also have relatively high requirements for light transmittance and haze, and therefore high-transmission optical grade BOPET is selected as the substrate layer.
Wherein the substrate layer 10 is used for integrally carrying the linear grating layer 40 and the imaging layer 50 through the first adhesion promoting primer layer 20 and the second adhesion promoting primer layer 30, and is light-permeable.
In the present example, both the first adhesion promoting primer layer 20 and the second adhesion promoting primer layer 30 may be aqueous environmental protection primers, wherein the individual layers can be made to form an integrated effect by the first adhesion promoting primer layer 20 and the second adhesion promoting primer layer 30, and the individual layers are not peelable.
Imaging layer 50 for duplex imaging. The linear grating layer 40 is used for carrying out directional refraction on the light source of the projector so as to achieve the light-resistant effect, and assists the imaging layer 50 to carry out double-sided imaging, so that imaging is clearer and colors are more vivid. It should be noted that the linear structure of the linear grating layer 40 described in this embodiment is free of viewing angle limitations.
It should be noted that the linear grating layer 40 in this embodiment is a thin film or sheet having a grating structure, which can change the propagation direction and distribution of light, so as to achieve diffraction, beam splitting, reflection, polarization, and other effects of light. In the projection system, the linear grating layer can be placed on the back of a rear projection optical imaging film projected by a light source of a projector or on the side of a projection screen, and the light rays emitted by the light source are scattered in different directions by directional refraction, so that the aggregation of the light rays in a certain direction is reduced, and the problems of glare, reflection and the like are reduced. In addition, the light can be scattered to a larger angle range through diffraction and scattering of the light, so that the visual angle and the visible range of the projection image are improved.
Specifically, when it is desired to obtain a linear anti-light rear projection optical imaging film, the operator may apply the first adhesion promoting primer layer 20 to one side of the substrate layer 10 and then recoat the linear grating layer 40 to the first adhesion promoting primer layer 20. Next, a second adhesion promoting primer layer is applied to the other side of the substrate layer 10, and finally an imaging layer 50 is applied to the second adhesion promoting primer layer to form a linear anti-light rear projection optical imaging film.
When using a linear anti-light rear projection optical imaging film, as shown in fig. 1, a viewer can see from the front or back by placing the projection device behind the linear anti-light rear projection optical imaging film, i.e., with the projection device facing the imaging layer 50. While ambient light is typically present directly above or obliquely above. For example, the ambient light may be sunlight and/or lamp light. Thus, when ambient light is projected from obliquely above the rear projection screen, it is reflected off the linear grating layer 40, so that the ambient light does not strike the imaging layer 50 below the linear grating layer 40, and is not affected even if a small portion is mixed with the light source of the projection device to reach the imaging layer 50. The light source of the projection device projects to the inner side of the grating from a position parallel to the central line of the screen, and part of the light source is refracted in the linear grating layer 40 for multiple times, and part of the light source penetrates through the grating and is imaged on the back surface; and one part of the light beam is directionally adjusted through the grating angle, and the front surface is imaged, so that the back surface can not have the effects of light bands and light spots.
The light scattered back from the front surface is uniform by the imaging layer 50, and no light bands or light spots are generated, so that the light-resistant effect is achieved. Thereby realizing the imaging effect of uniform double-sided imaging and excellent color. Compared with the existing rear projection screen, when a user uses the linear light-resistant rear projection optical imaging film to image, the high picture definition, the picture brightness and the contrast can still be kept on both sides under the condition of turning on a lamp. In practical use, the user can also achieve the best imaging effect by adjusting the positions of the screen and the projection device.
In one embodiment of the present application, as shown in fig. 1 and 2, the imaging layer 50 may include a primary imaging layer 51 and an antiglare layer 52.
Wherein the primary imaging layer 51 is disposed on the second adhesion promoting primer layer 30 for clear and color-vivid imaging.
In the embodiment of the present application, the main imaging layer 51 is added with nm-level titanium dioxide, nm-level silicon dioxide and nm-level black paste, and the light transmittance can be adjusted to 15% -25%, and the haze can be adjusted to 55% -70%.
It should be noted that, the addition amounts of the nm-level titanium dioxide, the nm-level silicon dioxide and the nm-level black paste described in the embodiment may be selected according to practical situations, and are not limited herein, and specific addition standards are to meet the requirements of light transmittance and haze. And through the adjustment of filler proportion, light transmittance and haze can change, and the proportion that light transmittance and haze satisfy the requirement can carry out the adaptability and select, and the proportion is not unique. Only the requirements of light transmittance and haze are met.
An anti-glare layer 52 is disposed on the main imaging layer 51 to uniformly scatter a light source of the projector and to remove glare caused by ambient light.
In the embodiment of the present application, the anti-glare layer 52 may be an optical-grade transparent material, the surface of which is a nm-grade microstructure, and the light transmittance may be adjusted to 75% -85%, and the haze may be adjusted to 25% -30%.
It should be noted that, the nm-level microstructure described in this embodiment is a surface microstructure, and the depth of the structure is nm-level, and the structure of the structure layer is not unique, so long as the requirements of light transmittance and haze can be satisfied.
In one embodiment of the present application, as shown in fig. 3, the linear grating layer 40 may be made of transparent material with high transmittance, the color is transparent gray, and the grating cross-section angle is 45 ° and is isosceles triangle.
It should be noted that the grating profile angle of the linear grating layer 40 described in this embodiment is applicable to mid-tele machines.
In the embodiment of the application, the nm-level black paste is added into the high-light-transmittance optical-grade transparent material, and the addition amount can be 0.2% -0.5%.
It can be understood that by adjusting the grating angle, directional refraction can be performed on light, so as to change the propagation direction and distribution of the light, and the directional refraction is used for realizing the effects of diffraction, beam splitting, reflection, polarization and the like of the light, thereby reducing the occurrence of the problems of glare, reflection and the like. In addition, the color paste can be added to make the color paste have a certain color, and the addition amount of the color paste can be selected according to actual conditions, and the color is not limited herein, wherein the color is the best light gray.
Specifically, when using the linear anti-light rear projection optical imaging film, as shown in fig. 1, a viewer can view from the front or the rear by placing the projection device behind the present linear anti-light rear projection optical imaging film, i.e., the projection device faces the anti-glare layer 52. Wherein, the ambient light generally exists right above or obliquely above and consists of sunlight and/or lamplight. Thus, when ambient light is projected from directly above or obliquely above the rear projection screen, it is reflected off the linear grating layer 40, so that ambient light does not strike the imaging layer 50 below the linear grating layer 40, and the main imaging layer 51 is not affected even if a small portion is mixed with the light source of the projection device to reach the main imaging layer 51.
The light source of the projection device projects to the inner side of the grating from a position parallel to the central line of the screen, and the light source is refracted in the linear grating layer 40 for a plurality of times, part of the light source penetrates through the grating, images on the back, and part of the light source images on the front through directional adjustment of the angle of the grating, so that no light band and light spot effect can appear on the back.
The light scattered back from the front surface is uniform in light passing through the antiglare layer 52 due to the antiglare layer 52, and no light band or light spot is generated, so that the light-resisting effect is achieved. Thereby realizing the imaging effect of uniform double-sided imaging and excellent color.
In sum, the linear anti-light rear projection optical imaging film of the embodiment of the application not only can image on two sides, but also can directionally refract the light source of the projector to play a role in resisting light, so that the imaging effect is clearer and the color is bright.
In the description of this specification, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the present application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the present application.
Claims (8)
1. A linear anti-light rear projection optical imaging film is characterized by comprising a substrate layer, a first adhesion promoting primer layer, a second adhesion promoting primer layer, a linear grating layer and an imaging layer, wherein,
a first adhesion promoting primer layer is arranged on one side of the substrate layer, a second adhesion promoting primer layer is arranged on the other side of the substrate layer, the linear grating layer is arranged on the first adhesion promoting primer layer, and the imaging layer is arranged on the second adhesion promoting primer layer; wherein,
the substrate layer is used for integrally bearing the linear grating layer and the imaging layer through the first adhesion promoting primer layer and the second adhesion promoting primer layer and is light-permeable;
the imaging layer is used for double-sided imaging;
the linear grating layer is used for carrying out directional refraction on a light source of the projector so as to resist light.
2. A linear anti-light rear projection optical imaging film according to claim 1, wherein the imaging layer comprises a primary imaging layer and an antiglare layer, wherein,
the main imaging layer is arranged on the second adhesion promoting primer layer and is used for imaging with clear and bright color;
the anti-dazzle layer is arranged on the main imaging layer and is used for uniformly scattering a light source of the projector and eliminating glare caused by ambient light.
3. A linear anti-light rear projection optical imaging film according to claim 1, wherein the substrate layer is an optical grade BOPET substrate layer having a thickness of 100 μm.
4. A linear light-resistant rear projection optical imaging film according to claim 1, wherein the first adhesion promoting primer layer and the second adhesion promoting primer layer are both aqueous environmental protection primers.
5. A linear anti-light rear projection optical imaging film according to claim 1, wherein the linear grating layer is made of high-transmittance optical grade transparent material, the color is transparent gray, and the grating section angle is 45 degrees, and is isosceles triangle.
6. A linear anti-light rear projection optical imaging film according to claim 5, wherein the high-transmittance optical grade transparent material is added with nm grade black paste, and the addition amount is 0.2% -0.5%.
7. A linear anti-light rear projection optical imaging film according to claim 2, wherein the main imaging layer is added with nm-level titanium dioxide, nm-level silicon dioxide and nm-level black paste, and the light transmittance is adjusted to 15% -25% and the haze is adjusted to 55% -70%.
8. A linear anti-glare rear projection optical imaging film according to claim 2, wherein the antiglare layer is an optical grade transparent material, the surface of the antiglare layer is a nm grade microstructure, the light transmittance is adjusted to 75% -85%, and the haze is adjusted to 25% -30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311670585.3A CN117518699A (en) | 2023-12-07 | 2023-12-07 | Linear anti-light rear projection optical imaging film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311670585.3A CN117518699A (en) | 2023-12-07 | 2023-12-07 | Linear anti-light rear projection optical imaging film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117518699A true CN117518699A (en) | 2024-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311670585.3A Pending CN117518699A (en) | 2023-12-07 | 2023-12-07 | Linear anti-light rear projection optical imaging film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117518699A (en) |
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2023
- 2023-12-07 CN CN202311670585.3A patent/CN117518699A/en active Pending
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