CN211603592U - Protective film for goggles lens - Google Patents

Abstract

The utility model discloses a protective film for goggles lens belongs to the goggles lens field the protective film system that a plurality of layers of different thickness's single membrane material titanium dioxide and silica constitute has been plated in turn on goggles lens's surface. The utility model discloses have good anti blue light, near-infrared performance, preserve good transmissivity in the visible light within range, increased the protective capacities to people's eye and guaranteed good looking thing and imaging quality again.

Description

Protective film for goggles lens

Technical Field

The utility model relates to a goggles technical field especially indicates a protecting film for protecting goggles lens.

Background

Human beings are in various illumination environments, whether natural light or artificial light sources, on one hand, the light sources bring illumination to people, help people form vision, and observe and learn the world; on the other hand, ultraviolet light, visible light and infrared light generated by the composite material are harmful to human eyes to different degrees. In recent years, with the development of science and technology and multimedia platforms, electronic screens such as televisions, computers, mobile phones and the like are continuously full of people's lives, the development of network technology and the requirements of modern families and offices promote more young people to become computer families and mobile phones, and the eye health problem is becoming serious. The screens contain blue light which is harmful to human eyes, so that the amount of toxins in a macular region in the eyes is increased due to the blue light, eyeballs are damaged, the eyesight is affected, and the eye health of people is seriously threatened. While many near-infrared optical devices for medical use inevitably reflect through various ways even directly penetrate into human eyes due to misoperation in the process of being used by operators, and the high-risk people with eye injury are very necessary to wear protective lenses to effectively prevent the eyes from being injured by light of various wave bands.

The main damage parts of the human eyes by ultraviolet rays are cornea and crystalline lens, and retina, vitreous body macula part and the like can be damaged. Repeated uv irradiation can cause chronic blepharitis and acute keratoconjunctivitis.

The blue light is the light closest to the ultraviolet light wave and with the highest energy, and the wavelength is between 400 and 500 nm. The retina can be damaged by long-term exposure to blue light, the vision of serious people can be damaged, maculopathy is caused, and symptoms such as red eye, dry eye, eye puckery, blurred vision, asthenopia, pain in head, shoulders and cervical vertebra can appear. Research shows that blue light exists not only in sunlight, but also in computer monitors, fluorescent lamps, mobile phones, digital products, projectors and the like in large quantities. The short-wave blue light has extremely high energy, can penetrate through crystalline lens to directly reach retina, causes optical damage to the retina, directly or indirectly causes damage to cells in a macular region, and increases the toxin amount in the macular region in eyes by the blue light, thus seriously threatening the eye ground health of people.

The damage of infrared rays (mainly near infrared wavelength of 780-1400 nm) to eyes is mainly caused by corneal stroma protein damage and corneal opacity caused by high temperature, and cataract is caused by partial opacity of crystalline lens. It can also cause chronic blepharitis and conjunctivitis. Workers working for a long time under infrared rays can also have dry eye symptoms caused by the continuous evaporation of the tear film and the unsmooth secretion of accessory lacrimal glands, and some workers can also have the early-aged phenomenon of the decline of eye regulation.

Studies have shown that when light is shone on the eye, about 4% of the light is reflected off the cornea and the majority will be absorbed through the cornea, aqueous humor, lens and vitreous individually and eventually to the retina. The light emitted by the high-power artificial light source is mostly in a non-panchromatic spectrum, the spectral components comprise infrared light and ultraviolet light, and the absorption capacity of crystals and corneas to the ultraviolet light is the largest. Therefore, long-term irradiation with a lamp rich in ultraviolet rays induces electric ophthalmia, which causes clouding of the lens, and cataract and inflammation of the cornea and conjunctiva. The light reflection coefficient of smooth and white paper is as high as 90%, which is about 10 times higher than that of lawn, forest or wool surface ornaments. The paper used in many publications today is very bright and smooth, has a high reflectance and feels tired in a short time. It has been found that long-term reading of a book of particularly smooth paper can cause damage to the cornea and iris of the human eye, inhibit the function of the retinal photoreceptor cells, and cause asthenopia and impaired vision. The myopia rate of high school students in China is as high as 60%, and related experts consider that the visual environment is the main reason for forming myopia rather than the habit of using eyes.

Therefore, there is a strong need for an eye protection device that has good blue light resistance and near infrared resistance, and that maintains good transmission in the visible range.

SUMMERY OF THE UTILITY MODEL

The utility model provides a protecting film for protect eye lens has good anti blue light, near-infrared performance, preserves good transmissivity at the visible light within range, has increased the protective capacities to people's eye and has guaranteed good looking thing and imaging quality again.

The technical scheme of the utility model is realized like this:

a protective film for a protective lens comprises the protective lens, wherein a plurality of layers of protective film systems consisting of single film materials of titanium dioxide and silicon dioxide with different thicknesses are alternately plated on the surface of the protective lens.

As a preferred embodiment of the present invention, the silica is plated on the outer surface of the titanium dioxide.

As a preferred embodiment of the present invention, the titanium dioxide is pre-melted and then plated by electron beam evaporation, and the silicon dioxide is plated by resistance evaporation.

As a preferred embodiment of the present invention, the surface of the goggle lens is coated with 14 layers of protective film system composed of titanium dioxide and silicon dioxide with different thicknesses, wherein the number of layers of titanium dioxide and silicon dioxide is 7 respectively.

As a preferred embodiment of the present invention, the initial mold system of the protective film system is G | HL0.6(0.5HL0.5H) ^31.85(0.5LH0.5L) ^3| Air, where H is TiO₂L is SiO₂。

As a preferred embodiment of the present invention, the thickness of each single film material is 200nm or less.

As a preferred embodiment of the present invention, the thickness of the silica is 20nm or more.

As a preferred embodiment of the present invention, the thickness range of each layer of single film material is TiO ₂10～12nm，SiO₂68～74nm，TiO ₂10～14nm，SiO₂175～185nm，TiO₂14～18nm，SiO₂48～54nm，TiO₂48～54nm，SiO₂25～30nm，TiO₂152～162nm，SiO₂181～171nm，TiO ₂100～110nm，SiO₂172～182nm，TiO ₂100～108nm，SiO ₂80～90nm。

The beneficial effects of the utility model reside in that: the anti-blue light and near infrared performance is good, the transmittance is good in the visible light range, the protection capability to human eyes is improved, and good visual object and imaging quality are guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic structural view of an embodiment of a protective film for a goggle lens according to the present invention;

fig. 2 is an actually measured spectrum transmittance curve of a protective film for a goggle lens of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

As shown in figure 1, the utility model provides a protective film for a goggle lens, which comprises a goggle lens, and a plurality of layers of protective film systems consisting of single film materials of titanium dioxide and silicon dioxide with different thicknesses are plated on the surface of the goggle lens in turn. The initial mode of the protective film system is G | HL0.6(0.5HL0.5H) ^31.85(0.5LH0.5L) ^3| Air, where H is TiO₂L is SiO₂。

The silicon dioxide is plated on the outer surface of the titanium dioxide. Specifically, silicon dioxide (SiO)₂): the light-transmitting band is 0.2um-2um, 0.2um-4um has no absorption, the refractive index is 1.46, the chemical property is stable, the mechanical property is extremely firm, the moisture absorption is not generated, the abrasion and corrosion resistance is realized, the light scattering and absorption are small, the silicon dioxide is insoluble in water, the reaction with water and general acid is avoided, the evaporation is stable, and the pre-melting is generally not needed. Titanium dioxide (TiO)₂): the transparent wave band is 0.35-12um, the refractive index is 2.3, the film performance is stable, and the mechanical performance is firm. Therefore, the silicon dioxide also has the function of a waterproof layer. The surface of the goggles lens is alternately plated with 14 layers of protective film systems consisting of titanium dioxide and silicon dioxide with different thicknesses, wherein the number of the layers of the titanium dioxide and the silicon dioxide is 7 respectively. The silica separates the silicas and is outermost for water and wear protection.

Titanium dioxide is pre-melted and then plated through electron beam evaporation, and silicon dioxide is plated through resistance evaporation.

The thickness of each single film material is less than 200nm, and the thickness of the silicon dioxide is more than 20 nm. The thickness range of each layer of single film material is TiO ₂10～12nm，SiO₂68～74nm，TiO ₂10～14nm，SiO₂175～185nm，TiO₂14～18nm，SiO₂48～54nm，TiO₂48～54nm，SiO₂25～30nm，TiO₂152～162nm，SiO₂181～171nm，TiO ₂100～110nm，SiO₂172～182nm，TiO ₂100～108nm，SiO ₂80～90nm。

Specifically, the parameters of the membrane system according to an embodiment of the present invention are shown in the following table.

Number of layers	Film material	Thickness (nm)
			1	TIO2	11.82
2	SIO2	71.94
			3	TIO2	12.90
4	SIO2	180.18
			5	TIO2	16.61
6	SIO2	51.63
			7	TIO2	51.30
8	SIO2	27.73
			9	TIO2	157.95
10	SIO2	186.90
			11	TIO2	106.23
12	SIO2	177.78
			13	TIO2	103.19
14	SIO2	85.27

As shown in FIG. 2, the transmittance of the blue light band of 400-450nm of the present invention is 35% < T1 < 40%; namely, the blue light interception rate is about 60%, so that the blue light can be well prevented from being damaged, and partial blue light can be ensured to be reserved to reduce the color cast phenomenon of an image.

The ultraviolet region and the blue region are suppressed to the same extent, and the transmittance in the ultraviolet region is lower than that in the blue region in the film system design process.

The average passing rate T4 of 800-1100nm in the near infrared band is less than 50 percent, wherein the average passing rate T5 of 900-1100nm is less than 40 percent. The near-infrared band is effectively intercepted, the heat input amount is reduced, the damage to human eyes is reduced, and the imaging and visual substance amount is improved.

In other embodiments, an AF/AS coating film, namely an antifouling film (AS), also called a hydrophobic film or an anti-fingerprint film (AF), may be further applied, having the functions of water resistance, oil resistance, scratch resistance, fingerprint resistance, contamination prevention, easy cleaning, and the like. The use performance of the lens in rainy days, water drenches, foggy days, cold days, finger prints and other conditions is improved. The water drop angle test result of the waterproof film is about 113 degrees, the waterproof performance is excellent, and the industrial standard level is reached.

The utility model discloses have good anti blue light, near-infrared performance, preserve good transmissivity in the visible light within range, increased the protective capacities to people's eye and guaranteed good looking thing and imaging quality again.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A protective film for a protective eyewear lens, comprising a protective eyewear lens, characterized in that: the surface of the goggles lens is alternately plated with a plurality of layers of protective film systems consisting of single film materials of titanium dioxide and silicon dioxide with different thicknesses; the initial mode system of the protective film system is G | HL0.6(0.5HL0.5H) ^31.85(0.5LH0.5L) ^3| Air, wherein H is TiO₂L is SiO₂。

2. A protective film for a protective eyewear lens, according to claim 1, wherein: the silicon dioxide is plated on the outer surface of the titanium dioxide.

3. A protective film for a protective ophthalmic lens according to claim 1 or 2, characterized in that: the titanium dioxide is pre-melted and then plated through electron beam evaporation, and the silicon dioxide is plated through resistance evaporation.

4. A protective film for a protective ophthalmic lens according to claim 1 or 2, characterized in that: the surface of the goggles lens is alternately plated with 14 layers of protective film systems consisting of titanium dioxide and silicon dioxide with different thicknesses, wherein the number of the layers of the titanium dioxide and the silicon dioxide is 7 respectively.

5. A protective film for a protective eyewear lens, according to claim 1, wherein: the thickness of each single film material is less than 200 nm.

6. A protective film for a protective ophthalmic lens according to claim 1 or 2, characterized in that: the thickness of the silicon dioxide is more than 20 nm.

7. A protective film for a protective eyewear lens, according to claim 1, wherein: the thickness range of each layer of single film material is TiO₂10～12nm，SiO₂68～74nm，TiO₂10～14nm，SiO₂175～185nm，TiO₂14～18nm，SiO₂48～54nm，TiO₂48～54nm，SiO₂25～30nm，TiO₂152～162nm，SiO₂181～171nm，TiO₂100～110nm，SiO₂172～182nm，TiO₂100～108nm，SiO₂80～90nm。

Images