Anti-fog polarized lens

Abstract

The utility model discloses an anti-fog polarized lens which comprises a PVA (Polyvinyl Alcohol) polarized film, and nanoscale pits are formed on the surface of the PVA polarized film through ion beam etching; the resin base material is cured and molded on the upper surface and the lower surface of the PVA polarizing film; the hardening layer is coated on the surface of the resin base material; the high anti-reflection layer is plated on the surface of the hardening layer; the multi-layer anti-fog protection layer is arranged on the surface of the high anti-reflection layer and sequentially comprises a silane coupling agent bottom layer, a nano silicon dioxide coating, a wear-resistant layer and a hydrophobic outer layer. According to the utility model, the nanoscale pits are etched and formed on the surface of the PVA polarizing film, so that the interface bonding capacity with resin is enhanced; in addition, the multiple anti-fog protective layers depend on the silane coupling agent bottom layer to enhance the adhesive force between the coating and the resin substrate, the nano-silica coating is nano-silica suspension liquid and is matched with the hydrophobic outer layer to improve the waterproof effect of the lens, and the middle wear-resistant layer enhances the wear resistance of the nano-silica coating film layer and improves the durability.

Description

Technical Field

[0001] This utility model belongs to the field of polarized lens technology, specifically, it relates to an anti-fog polarized lens. Background Technology

[0002] Polarized lenses are lenses that allow only light of a specific polarization direction to pass through. Due to their filtering effect, they effectively eliminate and filter scattered light from a beam of light, ensuring that light enters the eye along the correct optical axis, resulting in a clear and natural field of vision. Similar to the principle of Venetian blinds, light is adjusted to enter the room in the same direction, naturally making objects appear softer and less glaring. Polarized lenses are best suited for outdoor sports (such as water sports, skiing, or fishing).

[0003] Existing polarized lenses typically consist of a polarizing film laminated onto the lens substrate. Such lenses offer limited functionality, and the bond between the polarizing film and the resin is prone to peeling, resulting in white spots and bubbles that affect wearability. Furthermore, the anti-fog effect on the surface of polarized lenses requires an additional anti-fog coating, but this coating is susceptible to peeling due to external factors, thus reducing its anti-fog effectiveness.

[0004] Therefore, further anti-fogging improvements are needed for polarized lenses. Utility Model Content

[0005] In view of this, the technical problem to be solved by this utility model is to provide an anti-fog polarized lens, which avoids the trouble of the polarization film of the previous polarized lens being easy to peel off, producing white spots and bubbles, affecting the polarization effect, and the poor durability of the anti-fog coating on the lens surface.

[0006] To solve the above-mentioned technical problems, this utility model discloses an anti-fog polarizing lens, comprising:

[0007] PVA polarizing film: The surface of the PVA polarizing film is etched with nanoscale pits by ion beam etching, and the surface roughness is 50-200nm.

[0008] Resin substrate, which is cured and molded on the upper and lower surfaces of the PVA polarizing film;

[0009] A hardening layer coated on the surface of a resin substrate;

[0010] A high anti-reflection layer is deposited on the surface of the hardened layer. The high anti-reflection layer includes alternating titanium dioxide film layers and silicon dioxide film layers, with 5-7 alternating layers and a total thickness of 75-250nm.

[0011] A multi-layer anti-fog protective layer is set on the surface of the high anti-reflection layer. The multi-layer anti-fog protective layer includes, in sequence, a silane coupling agent bottom layer, a nano-silica coating, a wear-resistant layer, and a hydrophobic outer layer.

[0012] According to one embodiment of the present invention, the thickness gradient of the high anti-reflection layer is set such that the thickness gradually increases from the innermost layer to the outermost layer.

[0013] According to one embodiment of the present invention, the above-mentioned multi-layer anti-fog protective layer is formed by spin coating.

[0014] According to one embodiment of the present invention, the wear-resistant layer is configured as a silicon-based hard coating.

[0015] According to one embodiment of the present invention, the hydrophobic outer layer is configured as an organosilicon film layer.

[0016] Compared with the prior art, the present invention can achieve the following technical effects:

[0017] Nanoscale pits are etched into the surface of the PVA polarizing film to enhance the interfacial bonding ability with the resin. In addition, the multi-layer anti-fog protective layer relies on the silane coupling agent bottom layer to enhance the adhesion between the coating and the resin substrate. The nano silica coating is a nano silica suspension, which, together with the hydrophobic outer layer, improves the waterproof effect of the lens. The middle wear-resistant layer enhances the wear resistance of the nano silica coating film and improves its durability.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the above-mentioned technical effects at the same time. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of an anti-fog polarizing lens according to an embodiment of the present invention.

[0021] Attached Figure Labels

[0022] 10 PVA polarizing film, 20 resin substrate, 30 hardening layer, 40 high anti-reflection layer, 50 multi-layer anti-fog protective layer, 51 silane coupling agent bottom layer, 52 nano silica coating, 53 wear-resistant layer, 54 hydrophobic outer layer. Detailed Implementation

[0023] The following will describe in detail the implementation of this utility model with reference to the accompanying drawings and embodiments, so that the implementation of this utility model can be fully understood and carried out based on how technical means are used to solve technical problems and achieve technical effects.

[0024] Please refer to Figure 1 , Figure 1 This is a schematic diagram of an anti-fog polarizing lens according to an embodiment of the present invention.

[0025] As shown in the figure, an anti-fog polarizing lens includes: a PVA polarizing film 10, the surface of which is etched with nanoscale pits by ion beam etching, and the surface roughness is 50-200nm; a resin substrate 20, which is cured and formed on the upper and lower surfaces of the PVA polarizing film 10; a hardening layer 30 coated on the surface of the resin substrate 20; a high anti-reflection layer 40 deposited on the surface of the hardening layer 30, the high anti-reflection layer 40 including alternating titanium dioxide film layers and silicon dioxide film layers, alternating 5-7 layers, and a total thickness of 75-250nm; and a multi-layer anti-fog protective layer 50 disposed on the surface of the high anti-reflection layer 40, the multi-layer anti-fog protective layer 50 including a silane coupling agent bottom layer 51, a nano-silica coating 52, a wear-resistant layer 53, and a hydrophobic outer layer 54.

[0026] In one embodiment of this invention, the surface of the PVA polarizing film 10 is bombarded with nanoscale pits using an argon ion beam etching process, which can improve the roughness (Ra) to 50-200 nm. This nanoscale roughness allows for better curing and adhesion with the liquid resin, resulting in good film contact and preventing film detachment.

[0027] The hardening layer 30 is dip-coated onto the surface of the resin substrate 20. It is a film layer prepared by dip-coating with a commercially available hardening liquid and is used to improve the surface hardness of the resin substrate 20. The high anti-reflection layer 40 is formed by alternatingly depositing titanium dioxide film layers and silicon dioxide film layers. It is used to improve the anti-reflection of the lens, reduce reflected light, and increase light transmittance. In a preferred embodiment, 5-7 layers can be alternately deposited to maintain a total thickness of 75-250 nm.

[0028] A multi-layer anti-fog protective layer 50 is spin-coated onto the outermost layer of the lens. Specifically, it includes a silane coupling agent underlayer 51, a nano-silica coating 52, a wear-resistant layer 53, and a hydrophobic outer layer 54. The silane coupling agent underlayer 51 serves as a transition primer, enhancing the adhesion between the next coating layer and the resin substrate 20 and reducing interlayer peeling. The nano-silica coating is a composite coating of hydrophilic nano-silica and polyurethane, formed by spin-coating and casting, providing excellent anti-fog properties. The outer wear-resistant layer enhances protection. The hydrophobic outer layer 54 improves the hydrophobic effect of the outermost layer, further enhancing anti-fog performance.

[0029] The high anti-reflection layer of this invention has a 40-layer thickness gradient, with the thickness gradually increasing from the innermost layer to the outermost layer, thereby improving the refractive index and enhancing anti-reflection properties step by step.

[0030] Preferably, the wear-resistant layer 53 is a silicon-based hard coating, which provides good protection and can still effectively protect the inner nano-silica coating even after the outer hydrophobic outer layer 54 is worn. The hydrophobic outer layer 54 is an organosilicon film layer with good hydrophobicity.

[0031] In summary, this invention enhances the interfacial bonding ability with the resin by etching nanoscale pits on the surface of the PVA polarizing film; in addition, the multi-layer anti-fog protective layer relies on the silane coupling agent underlayer to enhance the adhesion between the coating and the resin substrate; the nano-silica coating is a nano-silica suspension, which, together with the hydrophobic outer layer, improves the waterproof effect of the lens; and the middle wear-resistant layer enhances the wear resistance of the nano-silica coating film and improves its durability.

[0032] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. An anti-fog polarized lens, characterized in that, include: The PVA polarizing film has nanoscale pits formed on its surface by ion beam etching, and its surface roughness is 50-200nm. A resin substrate, wherein the resin substrate is cured and molded on the upper and lower surfaces of the PVA polarizing film; A hardening layer coated on the surface of the resin substrate; A high anti-reflection layer is deposited on the surface of the hardened layer. The high anti-reflection layer includes alternating titanium dioxide film layers and silicon dioxide film layers, with 5-7 alternating layers and a total thickness of 75-250 nm. A multi-layer anti-fog protective layer is disposed on the surface of the high anti-reflection layer, the multi-layer anti-fog protective layer comprising, in sequence, a silane coupling agent bottom layer, a nano-silica coating, a wear-resistant layer, and a hydrophobic outer layer.

2. The anti-fog polarized ophthalmic lens of claim 1, wherein, The high antireflective coating thickness gradient setting gradually increases from the innermost layer to the outermost layer.

3. The anti-fog polarized ophthalmic lens of claim 1, wherein, The multi-layer anti-fog protective layer is formed by spin coating.

4. The anti-fog polarized ophthalmic lens of claim 1, wherein, The wear-resistant layer is configured as a silicon-based hard coating.

5. The anti-fog polarized ophthalmic lens of claim 1, wherein, The hydrophobic outer layer is configured as an organosilicon film layer.

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