CN220455552U - AR front-back ultrathin protective lens - Google Patents
AR front-back ultrathin protective lens Download PDFInfo
- Publication number
- CN220455552U CN220455552U CN202322065258.7U CN202322065258U CN220455552U CN 220455552 U CN220455552 U CN 220455552U CN 202322065258 U CN202322065258 U CN 202322065258U CN 220455552 U CN220455552 U CN 220455552U
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- layer
- coating
- lens
- protective lens
- reinforcing layer
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- 230000001681 protective effect Effects 0.000 title claims abstract description 39
- 239000010410 layer Substances 0.000 claims abstract description 78
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 27
- 239000011247 coating layer Substances 0.000 claims abstract description 22
- 239000000758 substrate Substances 0.000 claims abstract description 22
- 239000011248 coating agent Substances 0.000 claims abstract description 18
- 238000000576 coating method Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims description 16
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 4
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229910000077 silane Inorganic materials 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 abstract description 25
- 239000011521 glass Substances 0.000 abstract description 18
- 238000002834 transmittance Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 230000004313 glare Effects 0.000 abstract description 3
- 238000003384 imaging method Methods 0.000 abstract description 3
- 238000007689 inspection Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000002346 layers by function Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 125000005587 carbonate group Chemical group 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 235000013024 sodium fluoride Nutrition 0.000 description 1
- 239000011775 sodium fluoride Substances 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Surface Treatment Of Optical Elements (AREA)
Abstract
The utility model discloses an AR front-rear ultrathin protective lens which is of a layered structure, wherein the layered structure comprises a substrate layer, a reinforcing layer, a coating layer and an ink coating area, the reinforcing layer is attached to the surface of the substrate layer, the coating layer is positioned on one side, far away from the substrate layer, of the reinforcing layer, and the ink coating area is positioned on one side, far away from the reinforcing layer, of the coating layer and is positioned at the edge of the coating layer. The substrate layer has good impact resistance and is not easy to crack, the substrate layer is reinforced by the reinforcing layer, so that a good protection effect can be achieved on the optical waveguide sheet, double-sided coating can doubly reduce light reflection, the transmittance is increased, the overall transmittance of the protective lens reaches 90% -95%, stray light outside an effective aperture of the lens can be absorbed through local inking, glare is avoided from being formed through the permeation of the stray light, and the imaging quality of the AR glasses is affected. In addition, whole protection lens is frivolous very, and is very little to the weight influence of AR glasses, makes AR glasses have better definition and wear comfort level.
Description
Technical Field
The utility model relates to the technical field of AR lenses, in particular to an AR front-back ultrathin protective lens.
Background
In recent years, the market of AR glasses has rapidly developed, and AR optical waveguide sheets are considered as a better optical solution for consumer-grade AR glasses in industry due to their light and thin appearance, freedom of industrial design, high transmittance to external light, and cost control after measurement. The AR optical waveguide sheet is a key component of AR glasses, and functions to transmit external ambient light directly into human eyes, and simultaneously transmit display information of the micro display element to human eyes through coupling in a predetermined manner. The user receives the virtual image by wearing the AR optical waveguide sheet, thereby realizing a predetermined visual effect of the AR technology.
The AR optical waveguide sheet is extremely thin and light, and is easy to damage, when the AR optical waveguide sheet is used as an optical component, the AR optical waveguide sheet is easy to damage or influence the use effect when being impacted or stained externally, and the AR glasses are high in price and high in damage cost.
Therefore, a protective lens is required to be attached to the outer surface of the optical waveguide to play a role in protection, but in order to ensure wearing comfort, aesthetic property and the like of the AR glasses, the protective lens of the AR optical waveguide sheet is required to conform to the characteristics of light weight and thinness of the whole body and cannot be excessively heavy.
Disclosure of Invention
The utility model aims to provide an AR front-back ultrathin protective lens which has a protective effect on an AR optical waveguide lens, is light and thin in whole, comfortable to wear and high in definition, and does not influence the use effect of AR glasses.
To achieve the above object, the solution of the present utility model is: the utility model provides an AR front and back ultra-thin protection lens, protection lens is the lamellar structure, lamellar structure includes substrate layer, enhancement layer, coating film layer and scribbles black region, the enhancement layer adheres to the surface on substrate layer, the coating film layer is located the enhancement layer and keeps away from substrate layer's one side, scribble black region and be located the coating film layer and keep away from the one side of enhancement layer, and be located the edge of coating film layer.
Further, the protective lens has a thickness in the range of 0.6 to 1.0mm.
Further, the protective lens has a weight in the range of 2-2.5g.
Further, the material of the base material layer is PC, and the thickness of the base material layer is 0.6-1.0cm.
Further, the thickness of the reinforcing layer is 1.0-10.0 mu m, and the reinforcing layer is a mixture of alcohol ether and silane.
Further, the coating layer employs an AR coating to form an antireflection film on the base material layer.
After the scheme is adopted, the beneficial effects of the utility model are as follows:
the laminated structure of the protective lens comprises a substrate layer, a reinforcing layer, a coating layer and an ink coating area, wherein the substrate layer has good impact resistance and is not easy to crack, the substrate layer is reinforced by the reinforcing layer, the optical waveguide sheet can have good protective effect, the double-sided coating can double reduce light reflection, the transmittance is increased, the overall light transmittance of the protective lens can reach 90% -95%, stray light outside an effective aperture of the protective lens can be absorbed through partial ink coating, glare is avoided from being formed through the stray light transmission, and the imaging quality of the AR glasses is affected.
In addition, whole protection lens is frivolous very, sets up behind the optical waveguide piece surface, and is very little to the weight influence of AR glasses, when effectively protecting the optical waveguide piece, makes AR glasses have better definition and wear the comfort level.
Drawings
FIG. 1 is a schematic diagram of a protective lens and an optical waveguide sheet according to the present utility model;
FIG. 2 is a schematic diagram of a layered structure according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a lens structure according to an embodiment of the utility model;
fig. 4 is a schematic diagram of a layered structure according to an embodiment of the present utility model.
Description of the reference numerals:
1. protecting the lens; 11. a substrate layer; 12. a reinforcing layer; 13. a coating layer; 14. an inking region; 15. an anti-fog layer; 2. an optical waveguide sheet.
Detailed Description
The utility model will be described in detail with reference to the accompanying drawings and specific embodiments.
The present utility model provides an AR front-rear ultra-thin protective lens, as shown in fig. 1, for mounting on the front and rear surfaces of an optical waveguide sheet 2 to protect the middle optical waveguide sheet 2. As shown in fig. 1 to 3, the protective lens 1 is a layered structure, and the layered structure includes a substrate layer 11, a reinforcing layer 12, a coating layer 13 and an inking region 14, wherein the reinforcing layer 12 is respectively located at two sides of the substrate layer 11, the coating layer 13 is located at one side of the reinforcing layer 12 away from the substrate layer 11, and the inking region 14 is located at one side of the coating layer 13 away from the reinforcing layer 12 and is located at an edge of the coating layer 13. In use, the protective lenses 1 are provided on both front and rear surfaces of the optical waveguide 2 in the AR glasses frame, respectively, to protect the optical waveguide 2.
The whole thickness range of the protective lens 1 is controlled to be 0.6-1.0mm, and the weight range is controlled to be 2-2.5g, so that the protective lens 1 is arranged on the surface of the optical waveguide sheet 2, and the protective lens not only has a protective effect on the optical waveguide sheet 2, but also can not influence wearing comfort of AR glasses due to too heavy weight.
The substrate layer 11 may be made of a PC material, and PC is also called PC plastic, and is a high molecular polymer having a carbonate group in a molecular chain, and may be classified into various types such as aliphatic, aromatic, aliphatic-aromatic, and the like according to the structure of the ester group. The PC material has good impact resistance, and the prepared lens is not easy to crack, so that the PC material can play a good role in protecting the middle optical waveguide sheet 2. The thickness of the base material layer 11 is 0.6-1.0cm.
The strengthening layer 12 is a mixture of alcohol ether and silane. The reinforcing layer 12 can be attached to the surface of the base material layer 11 by immersing the base material in the reinforcing liquid prepared from the mixture of the alcohol ether and the silane, and the reinforcing layer 12 can increase the hardness of the outer surface of the lens, so that the lens is more resistant to friction and scratch, the service life is longer, the hardness of the reinforced lens can reach 4H, and the protection effect on the optical waveguide sheet 2 can be further improved. In addition, the adhesion between the reinforcing layer 12 and the substrate layer 11 and the coating layer 13 is good, and the peeling is not easy. The thickness of the reinforcing layer 12 is 1.0 to 10.0 μm, and the reinforcing layer 12 is thin, and has little influence on the thickness and weight of the lens.
The coating layer 13 is an AR coating, which is a hard thermo-oxidation resistant film that minimizes the reflectivity of the surface of the device in a specific wavelength range. When light passes through different media, refraction and reflection can be generated, when the single-sided AR coating layer 13 is added, the lens can improve the light transmittance by 3-5%, so that an image is clearer, the lens is not easy to fog, the reflection of light can be doubly reduced through double-sided coating of the lens, the transmittance is increased, and the overall light transmittance of the protective lens 1 reaches 90% -95%.
As shown in fig. 3, the inking region 14 is located at a side of the coating layer 13 away from the strengthening layer 12, and is located at an edge of the coating layer 13, that is, the edge of the lens is subjected to silk-screen inking, so that stray light outside the effective aperture of the lens can be absorbed by locally inking the lens, and glare caused by the penetration of the stray light is avoided, thereby affecting the imaging quality of the AR glasses.
The layered structure of the protective lens 1 is not limited to the above-described layers, and various functional layers may be provided according to the need in addition to the above-described necessary layers, as shown in fig. 4, for example, a desired functional layer such as an anti-fog layer 15, an anti-reflection layer, a blue light preventing layer, a hydrophobic and oleophobic layer, and the like. The anti-fog layer 15 may be composed of silica, sodium fluoride and zirconium dioxide, and is used for enhancing the anti-fog performance of the lens, and the anti-fog layer 15 may be a single layer or a multi-layer composite anti-fog layer 15, and may be determined according to production needs and user needs. The blue light preventing layer liquid can be a blue light preventing coating coated on the surface of the lens, and the blue light preventing layer can also be a film coated on the surface of the lens, and the harmful blue light is reflected through the film layer, so that the protection purpose of blue light blocking is realized.
In addition, in order to match with the AR glasses frames with different specifications, the protective lenses 1 can be cut by a cutting type gold carving mode so as to obtain the protective lenses 1 with different shapes and specifications which can be matched with the AR glasses frames.
The processing technology of the protective lens 1 comprises the following steps:
s1, performing S1; injection molding, namely, injection molding a lens raw material to obtain a molded base material;
s2: surface inspection, namely performing surface inspection on the base material, and removing the base material with flaws and unqualified base material;
s3: cleaning before hardening, and performing hardening and drying to form a reinforcing layer 12 on the surface of the substrate;
s4: quality inspection, namely removing unqualified hardened lenses;
s5: cleaning before coating, and then performing vacuum coating to form coating layers 13 on the two sides of the lens;
s6: quality inspection, namely removing unqualified coated lenses;
s7: cutting out a gold carving to obtain a protective lens 1 matched with the shape and specification of an AR glasses frame;
s8: printing ink is silk-screened to obtain the ultrathin protective lens 1.
For further illustration of the various embodiments, the utility model is provided with the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments and together with the description, serve to explain the principles of the embodiments. With reference to these matters, one of ordinary skill in the art will understand other possible embodiments and advantages of the present utility model. The components in the figures are not drawn to scale and like reference numerals are generally used to designate like components.
Meanwhile, the directions of front, rear, left, right, etc. in this embodiment are merely references to one direction, and do not represent directions in actual use. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The above embodiments are only preferred embodiments of the present utility model, and are not limited to the present utility model, and all equivalent changes made according to the design key of the present utility model fall within the protection scope of the present utility model.
Claims (6)
1. An AR front-rear ultra-thin protective lens, characterized in that: the protective lens is of a layered structure, the layered structure comprises a substrate layer, a reinforcing layer, a coating layer and an ink coating area, the reinforcing layer is attached to the surface of the substrate layer, the coating layer is located on one side, far away from the substrate layer, of the reinforcing layer, and the ink coating area is located on one side, far away from the reinforcing layer, of the coating layer and is located at the edge of the coating layer.
2. The AR front-rear ultra-thin protective lens of claim 1, wherein: the thickness of the protective lens ranges from 0.6 mm to 1.0mm.
3. The AR front-rear ultra-thin protective lens of claim 1, wherein: the weight of the protective lens ranges from 2 g to 2.5g.
4. The AR front-rear ultra-thin protective lens of claim 1, wherein: the base material layer is made of PC, and the thickness of the base material layer is 0.6-1.0cm.
5. The AR front-rear ultra-thin protective lens of claim 1, wherein: the thickness of the reinforcing layer is 1.0-10.0 mu m, and the reinforcing layer is a mixture of alcohol ether and silane.
6. The AR front-rear ultra-thin protective lens of claim 1, wherein: the coating layer adopts AR coating to form an antireflection film on the substrate layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322065258.7U CN220455552U (en) | 2023-08-02 | 2023-08-02 | AR front-back ultrathin protective lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322065258.7U CN220455552U (en) | 2023-08-02 | 2023-08-02 | AR front-back ultrathin protective lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220455552U true CN220455552U (en) | 2024-02-06 |
Family
ID=89724945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322065258.7U Active CN220455552U (en) | 2023-08-02 | 2023-08-02 | AR front-back ultrathin protective lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220455552U (en) |
-
2023
- 2023-08-02 CN CN202322065258.7U patent/CN220455552U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |