CN110879481A

CN110879481A - Anti-dazzle contact lens

Info

Publication number: CN110879481A
Application number: CN201811034674.8A
Authority: CN
Inventors: 蔡庆财
Original assignee: Kailekang Pharmaceutical Chongqing Co Ltd
Current assignee: Chongqing Shijian Eye Health Industry Co ltd
Priority date: 2018-09-06
Filing date: 2018-09-06
Publication date: 2020-03-13
Anticipated expiration: 2038-09-06
Also published as: CN110879481B

Abstract

The invention discloses an anti-dazzle contact lens, which comprises a contact lens body, wherein the contact lens body is made of silicon hydrogel and comprises an optical concave surface and an optical convex surface, and the optical convex surface is provided with a central surface corresponding to a pupil and a peripheral surface positioned around the central surface; a first light reflecting layer vacuum-plated on the central surface; a second light reflecting layer vacuum-plated on the peripheral surface, the first light reflecting layer being darker than the second light reflecting layer; and a plurality of dielectric layers vacuum-plated on the first light reflecting layer and the second light reflecting layer. According to the invention, the first light reflecting layer and the second light reflecting layer are vacuum-plated on the contact lens body, and the pupil iris is matched, so that the anti-glare effect is improved, and the trouble that the conventional contact lens is single and lacks anti-glare is avoided.

Description

Anti-dazzle contact lens

Technical Field

The invention belongs to the technical field of contact lenses, and particularly relates to an anti-dazzle contact lens.

Background

Lenses have been developed for a long time and are used in various fields such as optical instruments or spectacles, and most of the lenses or spectacles are required to have a design and an optical lens function. In the prior art, various optical lenses made of different materials are known, including plastic, glass, etc. In order to satisfy the trend of light and thin, the spectacle lenses are generally made of plastic, and films such as anti-reflection films, anti-ultraviolet films, etc. can be coated thereon, but such processes require a coating machine such as a spin coater to coat the films. Moreover, the device is not very valuable, so that not only expensive instruments are required, but also many steps and working hours are additionally increased. Since the film is coated on the surface of the lens, it is easy to scratch, and not the whole lens itself contains the anti-uv material with limited effect.

With the development of contact lenses, the main functions of the contact lenses are still the same as those of the traditional lenses, namely vision correction, comprising: myopia, hyperopia, astigmatism, presbyopia, aberrations, and the like. In terms of appearance color evolution, the contact lenses have evolved from early transparencies to later aquamarine lenses to facilitate easy grasping from the solution by the wearer. Generally, most contact lenses of today are mainly made of high molecular weight polymers, and the development of materials is directed to strongly adjusting high oxygen permeability and comfort. The present application proposes that the existing contact lenses lack an anti-glare function for common glasses and cannot be compared with sunglasses.

Disclosure of Invention

In view of the above, the technical problem to be solved by the present invention is to provide an anti-glare contact lens, wherein a first light reflecting layer and a second light reflecting layer are vacuum-coated on a contact lens body, so as to match with a pupil iris, thereby improving the anti-glare effect and avoiding the trouble of single contact lens and lack of anti-glare in the prior art.

In order to solve the above technical problems, the present invention discloses an anti-glare contact lens, which comprises a contact lens body made of silicone hydrogel, and comprising an optical concave surface and an optical convex surface, wherein the optical convex surface has a central surface corresponding to a pupil and a peripheral surface located around the central surface; a first light reflecting layer vacuum-plated on the central surface; a second light reflecting layer vacuum-plated on the peripheral surface, the first light reflecting layer being darker than the second light reflecting layer; and a plurality of dielectric layers vacuum-plated on the first light reflecting layer and the second light reflecting layer.

According to an embodiment of the present invention, the first light reflecting layer is made of a photochromic material, and the light transmittance of the first light reflecting layer is changed continuously when the first light reflecting layer is irradiated by light with different wavelengths.

According to an embodiment of the present invention, wherein the photochromic material is selected from spirooxazine compounds.

According to an embodiment of the present invention, the second light reflecting layer is made of a nanometer light absorbing material.

According to an embodiment of the present invention, the multilayer dielectric layer is composed of 6 thin film layers, and the first hydrophobic coating, the second PEDOT coating, the third ultraviolet protection coating, the fourth infrared protection coating, the fifth high refractive index coating, and the sixth low refractive index coating are sequentially formed from outside to inside.

According to an embodiment of the present invention, the refractive index of the fifth high refractive index coating is 2.35, and the refractive index of the sixth low refractive index coating is 1.45.

According to an embodiment of the present invention, the thickness of the multi-layered dielectric layer is 2 to 4 nm.

Compared with the prior art, the invention can obtain the following technical effects:

through first light reflex layer of vacuum plating and second light reflex layer on the contact lens body, the collocation improves anti-dazzle effect to the pupil iris, avoids single, the trouble of lacking anti-dazzle of contact lens in the past.

Of course, it is not necessary for any one product in which the invention is practiced to achieve all of the above-described technical effects simultaneously.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a top view of an anti-glare contact lens according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of an anti-glare contact lens according to an embodiment of the present invention.

Reference numerals

The contact lens comprises a contact lens body 10, a central surface 11, a peripheral surface 12, a first light reflecting layer 20, a second light reflecting layer 30 and a multi-layer medium layer 40.

Detailed Description

The following detailed description of the embodiments of the present invention will be provided with reference to the accompanying drawings and examples, so that how to implement the embodiments of the present invention by using technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented.

Referring to fig. 1 and 2 together, fig. 1 is a top view of an anti-glare contact lens according to an embodiment of the present invention; fig. 2 is a cross-sectional view of an anti-glare contact lens according to an embodiment of the present invention. As shown, an anti-glare contact lens includes a contact lens body 10, the contact lens body 10 is made of silicone hydrogel and includes an optically concave surface and an optically convex surface, wherein the optically convex surface has a central surface 11 corresponding to a pupil and a peripheral surface 12 located around the central surface 11; a first light reflecting layer 20 vacuum-plated on the central surface 11; a second light reflecting layer 30 vacuum coated on the peripheral surface 12, the first light reflecting layer 20 being darker than the second light reflecting layer 30; and a multi-layer dielectric layer 40 vacuum-plated on the first and second

light reflecting layers

20 and 30. In one embodiment of the present invention, the contact lens body 10 made of silicone hydrogel is an organic polymer material, has hydrophilicity, has a two-phase material framework, i.e. has two channels of fluorine and silicone and hydrogel, and is the latest generation contact lens manufacturing material.

When the optical concave surface is worn, the optical concave surface is attached to eyes, and the optical convex surface is exposed outside. The exposed optical convex surface is also divided into a central surface 11 aligned with the pupil, i.e. the iris, and the surrounding other peripheral surfaces 12, the central surface 11 is coated with a first light reflecting layer 20 by vacuum ion sputtering, and the peripheral surfaces are surrounded by second light reflecting layers 30, which have optical effects of reflecting light. In addition, the first light reflecting layer 20 is visually darker than the second light reflecting layer 30, and has a relatively stronger anti-reflection effect, further protecting the pupil iris from light intensity stimulation. The multilayer dielectric layer 40 optimizes the contact lens body 10, enhances the wearing experience, and improves the performance.

In detail, the first light reflecting layer 20 is made of a photochromic material, and the light transmittance thereof is changed when the first light reflecting layer is irradiated by light rays with different wavelengths. The photochromic material is selected from a spirooxazine compound, can absorb light intensity with different wavelengths to generate a color-changing effect, and can play a pupil beautifying effect when being worn in eyes.

The second light reflecting layer 30 is made of a nano-scale light absorbing material. Compared with the contact lens body 10, the light absorption is stronger, and the nano material has superior performance, fully absorbs and relieves, protects eyeballs and is convenient to use.

The multilayer dielectric layer consists of 6 thin film layers, the thickness of the multilayer dielectric layer is 2-4 nm through vacuum sputtering, and the first hydrophobic coating is sequentially arranged from outside to inside, so that the contact lenses can be conveniently picked; the second PEDOT coating is a conductive film coating, so that the AR effect is improved, and the visual effect is enhanced; the third ultraviolet-proof coating can effectively filter high-harm ultraviolet light and avoid burning eyeballs; the fourth infrared-proof coating effectively filters high-harm infrared light and avoids burning eyeballs; the fifth high-refractive-index coating and the sixth low-refractive-index coating are matched with each other to refract light and improve the polarization effect.

It is worth mentioning that in one embodiment of the present invention, the refractive index of the fifth high refractive index coating is 2.35, and the refractive index of the sixth low refractive index coating is 1.45.

The foregoing description shows and describes several preferred embodiments of the invention, but as aforementioned, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An anti-glare contact lens, comprising:

a contact lens body made of a silicone hydrogel comprising an optically concave surface and an optically convex surface, wherein the optically convex surface has a central surface corresponding to a pupil and a peripheral surface located around the central surface;

a first light reflecting layer vacuum-plated on the central surface;

a second light reflecting layer vacuum plated on the peripheral surface, the first light reflecting layer being darker than the second light reflecting layer; and

and the multilayer medium layers are plated on the first light reflecting layer and the second light reflecting layer in a vacuum manner.

2. The anti-glare contact lens of claim 1, wherein the first light-reflecting layer is made of a photochromic material and has a light transmittance that varies with exposure to light of different wavelengths.

3. The anti-glare contact lens according to claim 1, wherein the photochromic material is selected from spirooxazine compounds.

4. The anti-glare contact lens of claim 1, wherein the second light reflecting layer is made of a nanoscale light absorbing material.

5. The anti-glare contact lens according to claim 1, wherein the multi-layer dielectric layer comprises 6 thin film layers, and the first hydrophobic coating, the second PEDOT coating, the third UV-resistant coating, the fourth IR-resistant coating, the fifth high refractive index coating and the sixth low refractive index coating are sequentially arranged from outside to inside.

6. The anti-glare contact lens of claim 5, wherein the fifth high refractive index coating has a refractive index of 2.35 and the sixth low refractive index coating has a refractive index of 1.45.

7. The anti-glare contact lens according to claim 5, wherein the thickness of the multi-layer dielectric layer is 2-4 nm.