阅读说明：本技术 一种具有防雾功能的镜片 (Lens with antifogging function ) 是由 陈珂珩 于 2020-07-30 设计创作，主要内容包括：本发明提供一种具有防雾功能的镜片,具体涉及防雾镜片领域,包括镜片基板,镜片基板上设有防雾涂层,所述防雾涂层为吸湿性的聚合物涂层或吸湿性的聚合物与无机材料交联涂层或吸湿性的聚合物与聚合物交联涂层或吸湿性的聚合物与无机材料混合涂层。本发明具有良好的防雾功能。(The invention provides a lens with an anti-fog function, and particularly relates to the field of anti-fog lenses. The invention has good antifogging function.)

1. A lens with antifogging function which characterized in that: the anti-fog coating is a hygroscopic polymer coating or a hygroscopic polymer and inorganic material cross-linked coating or a hygroscopic polymer and polymer cross-linked coating or a hygroscopic polymer and inorganic material mixed coating.

2. The lens with the function of preventing fog according to claim 1, characterized in that: the thickness of the antifogging coating is 5 to 15 nanometers.

3. The lens with the function of preventing fog according to claim 2, characterized in that: the anti-fog coating is a hygroscopic polymer coating.

4. The lens with the function of preventing fog according to claim 3, characterized in that: the antifogging coating adopts crosslinked sodium polyacrylate.

5. The lens with the function of preventing fog according to claim 4, characterized in that: and an antireflection film is also arranged between the antifogging coating and the lens.

6. The lens with the function of preventing fog according to claim 5, characterized in that: the thickness of the antireflection film is 200 to 800 nanometers.

7. The lens with the function of preventing fog according to claim 6, characterized in that: the antireflection film is a single-layer film.

8. The lens with the function of preventing fog according to claim 7, characterized in that: the antireflection film has uniform thickness distribution, smooth surface and a single-layer film structure which presents a regular spherical array in a microscopic state.

Technical Field

The invention belongs to the field of antifogging lenses, and particularly relates to a lens with an antifogging function.

Background

Antifogging mirrors are lenses that can effectively prevent or avoid water mist from condensing, and are generally classified into organic antifogging mirrors and inorganic antifogging mirrors. The inorganic anti-fog mirror is generally characterized in that an anti-fog film is adhered on the surface of glass so as to achieve the aim of fog prevention; antifogging mirrors are lenses that can effectively prevent or avoid water mist from condensing, and are generally classified into organic antifogging mirrors and inorganic antifogging mirrors. Inorganic anti-fog mirrors generally have a layer of anti-fog film adhered to the surface of glass to achieve the aim of fog prevention. Organic anti-fog lenses are classified into coating anti-fog lenses, electrothermal anti-fog lenses and nano-composite anti-fog lenses. There are two causes of lens fogging: firstly, the liquefaction phenomenon is generated when the hotter gas in the lens meets the cooler lens; secondly, the water on the surface of the skin sealed by the silver mirror is evaporated, and the gas on the lens is condensed; the antifogging performance of the existing lens with the antifogging function is still required to be further improved;

in view of the above disadvantages, there is a need for a lens with an anti-fog function, which has a good anti-fog function.

Disclosure of Invention

The invention aims to provide a lens with an anti-fog function, which has a good anti-fog function.

The invention provides the following technical scheme:

the lens with the antifogging function comprises a lens substrate, wherein an antifogging coating is arranged on the lens substrate, and the antifogging coating is a hygroscopic polymer coating or a hygroscopic polymer and inorganic material cross-linked coating or a hygroscopic polymer and polymer cross-linked coating or a hygroscopic polymer and inorganic material mixed coating.

Preferably, the anti-fog coating thickness is 5 to 15 nanometers.

Preferably, the anti-fog coating is a hygroscopic polymer coating.

Preferably, the antifogging coating adopts crosslinked sodium polyacrylate. The crosslinked sodium polyacrylate high water absorption resin has high water absorption capacity and high water absorption speed, so that the antifogging effect can be effectively improved;

preferably, an antireflection film is further arranged between the antifogging coating and the lens. The antireflection film mainly functions to reduce or eliminate the reflected light of optical surfaces such as lenses, prisms, plane mirrors and the like, thereby increasing the transmission quantity of the elements and reducing or eliminating the stray light of the system

Preferably, the thickness of the antireflection film is 200 to 800 nanometers, and the thickness meets the requirements of the lens;

preferably, the antireflection film is a single layer film. The anti-reflection effect is good;

preferably, the antireflection film has uniform thickness distribution and a flat surface, and has a single-layer film structure of a regular spherical array in a microscopic state, so that a good antireflection effect is ensured.

The invention has the beneficial effects that:

the lens substrate is provided with the antifogging coating which is a hygroscopic polymer coating or a hygroscopic polymer and inorganic material cross-linked coating or a hygroscopic polymer and polymer cross-linked coating or a hygroscopic polymer and inorganic material mixed coating.

Detailed Description

The lens with the antifogging function comprises a lens substrate, wherein an antifogging coating is arranged on the lens substrate, and the antifogging coating is a hygroscopic polymer coating or a hygroscopic polymer and inorganic material cross-linked coating or a hygroscopic polymer and polymer cross-linked coating or a hygroscopic polymer and inorganic material mixed coating. The thickness of the antifogging coating is 5 to 15 nanometers. The anti-fog coating is a hygroscopic polymer coating. The antifogging coating adopts crosslinked sodium polyacrylate. The crosslinked sodium polyacrylate high water absorption resin has high water absorption capacity and high water absorption speed, so that the antifogging effect can be effectively improved; and an antireflection film is also arranged between the antifogging coating and the lens. The antireflection film mainly has the functions of reducing or eliminating the reflected light of optical surfaces such as lenses, prisms, plane mirrors and the like, so that the light transmission quantity of the elements is increased, and the stray light of a system is reduced or eliminated; the thickness of the antireflection film is 200-800 nanometers, and the thickness meets the requirements of the lens; the antireflection film is a single-layer film. The anti-reflection effect is good; the antireflection film has uniform thickness distribution and smooth surface, and has a single-layer film structure of a regular spherical array in a microscopic state, thereby ensuring good antireflection effect.

And (3) testing antifogging performance:

the required equipment: a beaker with the capacity of 300 ml; refrigerator (set temperature 3-6 ℃), camera, humiture instrument, rubber band, and ensure the instrument is ready for use.

Prior to testing, the following information was recorded in detail:

testing the information and the time validity of the film sample, marking the testing surface required by the film sample and the temperature of the refrigerating chamber of the refrigerator

A comparative reference was made using a film sample without antifogging properties; preparing a 200 x 200mm size film test sample; 200ml of water was added to a 300ml beaker, the test film sample was capped over the beaker mouth,

and fixing by a rubber band;

placing the beaker sealed with the film sample into a cold storage chamber (the temperature is 3-6 ℃) of a refrigerator for antifogging aging treatment, wherein the inspection time points are 4H, 8H and 24H respectively, and inspecting and recording the appearance change condition of the film in a cold storage environment;

the antifogging rating was judged as follows:

a has poor transparency, and the film surface has a plurality of small water drops;

b, the transparency is general, and the film surface has partial large water drops;

70% of the C membrane surface is provided with water drops;

part of water drops are on the surface of the membrane D;

e, high transparency and no water drop on the film surface;

taking 3 products as experimental group, purchasing 1 common product in market as contrast group, and performing the above experiment, wherein the product grades are all E, and the contrast group is C

Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.