CN216979576U - Anti light curtain based on concave lens microstructure - Google Patents
Anti light curtain based on concave lens microstructure Download PDFInfo
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- CN216979576U CN216979576U CN202220639918.0U CN202220639918U CN216979576U CN 216979576 U CN216979576 U CN 216979576U CN 202220639918 U CN202220639918 U CN 202220639918U CN 216979576 U CN216979576 U CN 216979576U
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Abstract
The utility model provides a light-resistant curtain based on a concave lens microstructure, which comprises a concave lens microstructure array and a reflecting layer on the surface of the concave lens microstructure array, wherein the concave lens microstructure array is provided with a plurality of concave lenses which are periodically arranged in the transverse direction and the longitudinal direction and a separation plate arranged between the adjacent concave lenses. According to the light-resistant curtain based on the concave lens microstructure, the concave lens array with the metal spraying layer on the surface has strong light-gathering performance, and through gathering of emergent light of a projector, the imaging brightness on the curtain is enhanced, interference of natural light on imaging is reduced, and therefore the display effect is effectively improved. The light-resistant curtain has the advantages of environmental protection, low energy consumption and good display effect.
Description
Technical Field
The utility model relates to the technical field of light-resistant curtains, in particular to a light-resistant curtain based on a concave lens microstructure.
Background
At present, the traditional display modes are divided into 2, and one is an active display mode, such as a large-screen television. The purpose of displaying is achieved by applying current to the LED chip. The other is a passive display mode, which mainly uses a projector to image on a curtain. The above 2 methods have their disadvantages, for example, the LED method has high energy consumption and high manufacturing cost although it has a good display effect. Although the passive curtain display mode has low energy consumption, the passive curtain display mode is greatly interfered by natural light, so the display effect is poor. With the technical progress and the improvement of environmental awareness, a display technology with low power consumption, good environmental protection and good display performance is urgently needed in the market to replace the conventional display mode.
SUMMERY OF THE UTILITY MODEL
The utility model provides an anti-light curtain based on a concave lens microstructure in order to overcome the defects in the prior art, and the curtain with the microstructure can effectively image, improve the imaging intensity of a light field and reduce the interference of natural light.
The light-resistant curtain based on the concave lens microstructure comprises a concave lens microstructure array and a reflecting layer on the surface of the concave lens microstructure array, wherein the concave lens microstructure array is provided with a plurality of concave lenses which are periodically arranged in the transverse direction and the longitudinal direction and a separation plate arranged between the adjacent concave lenses.
Preferably, the interval between the adjacent concave lenses is 5-10 um.
Preferably, the depth of each concave lens of the concave lens microstructure array is 25um or more, and the diameter of each concave lens 11 is 30 um.
Preferably, the surface roughness of the concave central region of the concave lens is 10nm or less.
Preferably, the height of division board is 10um, the thickness of division board is distance between the adjacent concave lens.
Preferably, the array of concave lens microstructures is an array of UV gel concave lens microstructures.
Preferably, the reflective layer is a metallic reflective layer.
Preferably, the thickness of the reflective layer is 500 nm.
Preferably, the metal reflective layer is a silver reflective layer or a platinum reflective layer.
The utility model has the following beneficial effects:
according to the light-resistant curtain based on the concave lens microstructure, the concave lens array with the metal spraying layer on the surface has strong light-gathering performance, and through gathering emergent light of a projector, the imaging brightness on the curtain is enhanced, and the interference of natural light on imaging is reduced. The light-resistant curtain has the advantages of environmental protection, low energy consumption and good display effect.
Drawings
Fig. 1 is a schematic diagram of a partial top view structure of a light-resisting curtain based on a concave lens microstructure of the present invention.
Fig. 2 is a schematic side sectional view of a part of the light-resistant curtain based on the concave lens microstructure of the present invention.
Detailed Description
The embodiments of the present invention will be described below with reference to the drawings attached to the specification. It should be noted that the embodiments mentioned in the present description are not exhaustive and do not represent the only embodiments of the present invention. The following examples are given for the purpose of clearly illustrating the utility model and are not intended to limit the embodiments thereof. It will be apparent to those skilled in the art that various changes and modifications can be made in the embodiment without departing from the spirit and scope of the utility model, and it is intended to cover all such changes and modifications as fall within the true spirit and scope of the utility model.
As shown in fig. 1-2, the light-resistant curtain based on concave lens microstructure of the present invention includes a concave lens microstructure array 1 and a reflective layer 2 on a surface thereof, where the concave lens microstructure array 1 has a plurality of concave lenses 11 arranged periodically in a transverse direction and a longitudinal direction, and a partition plate 12 disposed between adjacent concave lenses.
Preferably, the interval between the adjacent concave lenses 11 is 5-10 um. Here, the interval between the adjacent concave lenses 11 refers to the shortest distance between the edges of the adjacent concave lenses in the lateral or longitudinal direction. The depth of each concave lens 11 of the concave lens microstructure array is more than 25um, and the diameter of each concave lens 11 is 30 um. The surface roughness of the central area of the concave surface of the concave lens is 10nm or less. The smaller the surface roughness of the central region of the concave surface of the concave lens, the better the performance of condensing light. The central light-gathering area with low roughness can effectively gather the light.
Preferably, the height of the isolation plate 12 is 10um, and the thickness of the isolation plate 12 is the distance between the adjacent concave lenses. That is, the spacer 12 fills the space between the concave lenses, that is, the spacer except for the concave surface regions of the concave lenses. It can also be said that the partition plate 12 is formed like a honeycomb when viewed from the front. With this arrangement, the partition plate 12 can serve to partition the light reflected by the concave lenses, prevent the reflected light from interfering with each other, and further collect the reflected light. The spacer 12 and the periodically arranged concave lenses 11 may be integrally formed by a laser direct writing technique.
The concave lens microstructure array is a UV glue concave lens microstructure array.
The reflecting layer is a metal reflecting layer 2. The metal reflection layer is formed by uniformly forming a layer of metal film on the whole surface of the concave lens microstructure array 1 in a spraying or electroplating mode, namely the metal film 2 completely wraps the concave lens microstructure array 1 inside. Preferably, the metal reflective layer 2 may be a silver reflective layer or a platinum reflective layer. The thickness of the reflecting layer 2 is 500 nm. The thickness of the metal thin film reflective layer refers to the distance from the upper surface of the reflective layer 2 to the surface of the concave lens microstructure array 1.
The preparation process of the light-resistant curtain based on the concave lens microstructure of the utility model is described as follows, comprising the following steps:
a) spin-coating photoresist on a glass substrate, centrifuging at 500rpm for 30s, and standing for 20 min.
b) The photoresist was placed on a 90 ° hot plate for 30 min.
c) And placing the pre-baked photoresist in a laser direct writing photoetching device, and carrying out patterned exposure on the photoresist.
d) And developing the exposed photoresist, and baking for 35 s.
e) And spin-coating PDMS on the patterned photoresist, baking at 70 ℃ for 3h, and thus preparing the PDMS mold of the concave lens microstructure array.
f) And transferring the pattern onto the UV glue through the PDMS mold to obtain the UV concave lens microstructure array. Wherein the concave lens array and the isolation plate are integrally formed.
g) And finally, electroplating metal silver on the whole surface of the concave lens microstructure array by using an electroplating machine to form a silver reflecting layer wrapping the concave lens array, thereby forming the anti-light curtain based on the concave lens microstructure.
According to the light-resistant curtain based on the concave lens microstructure, the metal spraying layer is arranged on the surface of the concave lens microstructure array to form the concave reflector, so that the light-gathering performance is very strong, the imaging brightness on the curtain is enhanced through gathering emergent light of a projector, the interference of natural light on imaging is reduced, and the display effect is greatly improved.
It will be apparent to those skilled in the art that the above embodiments are merely illustrative of the present invention and are not to be construed as limiting the present invention, and that changes and modifications to the above described embodiments may be made within the spirit and scope of the present invention as defined in the appended claims.
Claims (9)
1. The light-resistant curtain based on the concave lens microstructures is characterized by comprising a concave lens microstructure array and a reflecting layer on the surface of the concave lens microstructure array, wherein the concave lens microstructure array is provided with a plurality of concave lenses which are periodically arranged in the transverse direction and the longitudinal direction and a separation plate arranged between every two adjacent concave lenses.
2. The concave-lens microstructure-based light curtain of claim 1, wherein a spacing between adjacent concave lenses is between 5-10 um.
3. The concave-lens microstructure based light curtain of claim 1, wherein each concave lens of the array of concave-lens microstructures has a depth of 25um or more and a diameter of 30 um.
4. The concave-lens microstructure based light curtain as recited in claim 3, wherein the concave central region of the concave lens has a surface roughness of 10nm or less.
5. The concave-lens microstructure-based light resistant curtain of claim 1, wherein the height of the spacer plates is 10um, and the thickness of the spacer plates is the distance between the adjacent concave lenses.
6. The concave-lens microstructure based light curtain of claim 1, wherein the array of concave lens microstructures is an array of UV gel concave lens microstructures.
7. The concave-lens microstructure based light curtain as recited in claim 1, wherein the reflective layer is a metallic reflective layer.
8. The concave-lens microstructure based light curtain as recited in claim 7, wherein the reflective layer has a thickness of 500 nm.
9. The concave-lens microstructure based anti-light curtain of claim 7, wherein the metal reflective layer is a silver reflective layer or a platinum reflective layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220639918.0U CN216979576U (en) | 2022-03-22 | 2022-03-22 | Anti light curtain based on concave lens microstructure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220639918.0U CN216979576U (en) | 2022-03-22 | 2022-03-22 | Anti light curtain based on concave lens microstructure |
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| Publication Number | Publication Date |
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| CN216979576U true CN216979576U (en) | 2022-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220639918.0U Active CN216979576U (en) | 2022-03-22 | 2022-03-22 | Anti light curtain based on concave lens microstructure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115145107A (en) * | 2022-07-25 | 2022-10-04 | 武汉大学 | Projection curtain for generating optical and hydrophobic properties based on surface micro-nano structure and preparation method |
| CN115291468A (en) * | 2022-07-25 | 2022-11-04 | 武汉大学 | Projection curtain with multilayer regular micro-nano textures on surface and preparation method thereof |
| CN115390352A (en) * | 2022-08-31 | 2022-11-25 | 湖北宜美特全息科技有限公司 | Light-resistant curtain and preparation method thereof |
-
2022
- 2022-03-22 CN CN202220639918.0U patent/CN216979576U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115145107A (en) * | 2022-07-25 | 2022-10-04 | 武汉大学 | Projection curtain for generating optical and hydrophobic properties based on surface micro-nano structure and preparation method |
| CN115291468A (en) * | 2022-07-25 | 2022-11-04 | 武汉大学 | Projection curtain with multilayer regular micro-nano textures on surface and preparation method thereof |
| CN115145107B (en) * | 2022-07-25 | 2023-09-19 | 武汉大学 | Projection curtain for generating optical and hydrophobic properties based on surface micro-nano structure and preparation method |
| CN115291468B (en) * | 2022-07-25 | 2023-10-03 | 武汉大学 | Projection curtain with multilayer regular micro-nano textures on surface and preparation method thereof |
| CN115390352A (en) * | 2022-08-31 | 2022-11-25 | 湖北宜美特全息科技有限公司 | Light-resistant curtain and preparation method thereof |
| CN115390352B (en) * | 2022-08-31 | 2024-06-04 | 湖北宜美特全息科技有限公司 | Light-resistant curtain cloth and preparation method thereof |
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