阅读说明：本技术 眼镜镜片和眼镜 (Spectacle lens and spectacles ) 是由 高桥宏寿 于 2019-09-05 设计创作，主要内容包括：本发明提供一种眼镜镜片和眼镜,保护眼睛免受蓝光伤害并减少发黄程度。本发明的眼镜镜片在基材的至少单面上形成有光学多层膜。在眼镜镜片的可见光区域中的反射率分布中,极大值存在于440nm以上460nm以下的波段和620nm以上640nm以下的波段。并且,眼镜镜片的使用日本工业标准“JIS T7333附件C”所记载的计算式而计算出的蓝光阻隔率设为7％以上(优选为8％以上)。另外,眼镜镜片的YI值设为6以下。(The invention provides a pair of glasses lens and glasses, which can protect eyes from being damaged by blue light and reduce yellowing degree. The spectacle lens of the present invention has an optical multilayer film formed on at least one surface of a base material. In the reflectance distribution in the visible light region of the spectacle lens, the maximum values are present in a wavelength band of 440nm to 460nm inclusive and a wavelength band of 620nm to 640nm inclusive. The blue light blocking ratio of the spectacle lens calculated using the calculation formula described in japanese industrial standard "JIS T7333 annex C" is 7% or more (preferably 8% or more). The YI value of the spectacle lens is 6 or less.)

1. An eyeglass lens comprising a base material and an optical multilayer film formed on at least one surface of the base material,

the maximum values of the reflectance distribution exist in a wavelength band of 440nm to 460nm inclusive and a wavelength band of 620nm to 640nm inclusive,

the blue light blocking ratio calculated by using a calculation formula described in Japanese Industrial Standard "JIS T7333 annex C" is 7% or more,

the YI value is 6 or less.

2. The spectacle lens according to claim 1,

the apparent reflectance on each surface is 2.5% or less.

3. The spectacle lens according to claim 1 or 2,

the side facing away from the eye has a reflectance of 12% or less in a wavelength band of 400nm to 700nm inclusive,

the reflectance of the side near the eye facing a wavelength range of 400nm to 700nm is 6% or less.

4. A pair of spectacles is characterized in that the spectacles,

the spectacles using the spectacle lens according to any one of claims 1 to 3.

Technical Field

The present invention relates to an eyeglass lens that reduces (blocks) transmission of light (blue light) on the short wavelength side of the visible light region, and an eyeglass using the eyeglass lens.

Background

As an eyeglass lens that blocks blue light and protects the eyes of a wearer from the blue light of relatively high energy, an eyeglass lens described in japanese patent No. 6073355 (patent document 1) is known.

In the spectacle lens, by forming 6 or 8 layers of ZrO on the front and back surfaces, respectively₂And SiO₂The alternating film (i.e., the optical multilayer film) has a reflectance of about 6% in a wavelength band from about 380nm (nanometers) to about 500nm, and blocks blue light by reflection. In addition, in the visible light region other than this wavelength band, the reflectance is reduced to improve the visibility.

Documents of the prior art

Patent document

Patent document 1: japanese patent No. 6073355

Disclosure of Invention

Problems to be solved by the invention

Since the spectacle lens blocks blue light and transmits light in other visible light regions, yellow, which is a complementary color of blue, appears, and the visual field of the wearer of the spectacle lens becomes yellowish. In consideration of appearance when worn, wearing of a yellow eyeglass lens is sometimes avoided.

It is a primary object of the present invention to provide an eyeglass lens and eyeglass that protects the eye from blue light and reduces the degree of yellowing.

Means for solving the problems

In order to achieve the above object, the invention of claim 1 is an eyeglass lens having an optical multilayer film formed on at least one surface side of a base material, wherein the eyeglass lens is characterized in that maximum values of reflectance distribution exist in a wavelength band of 440nm to 460nm inclusive and a wavelength band of 620nm to 640nm inclusive, a blue light blocking ratio calculated using a calculation formula described in japanese industrial standard "JIS T7333 annex C" is 7% or more, and a YI value is 6 or less.

The invention according to claim 2 is characterized in that, in the above invention, the apparent reflectance on each surface is 2.5% or less.

The invention according to claim 3 is characterized in that, in the above invention, the reflectance in a wavelength band of 400nm to 700nm on the side away from the eye is 12% or less, and the reflectance in a wavelength band of 400nm to 700nm on the side close to the eye is 6% or less.

In order to achieve the above object, the invention according to claim 4 is glasses using the spectacle lens according to the above invention.

Effects of the invention

The primary effect of the present invention is to provide an eyeglass lens and eyeglass that protects the eye from blue light and reduces the degree of yellowing.

Drawings

FIG. 1 is a graph showing the spectral reflectance distribution in the visible light region in examples 1 to 5.

Fig. 2 is a graph showing the spectral reflectance distribution in the visible light region in comparative examples 1 to 4.

Fig. 3 is a graph showing the spectral reflectance distribution in the visible light region in comparative examples 5 to 6.

FIG. 4 is a graph showing the spectral reflectance distribution in the visible region in examples 6 to 9.

FIG. 5 is a graph showing the spectral reflectance distribution in the visible region in examples 10 to 15.

Detailed Description

Next, an example of an embodiment of the present invention will be described. The present invention is not limited to the following embodiments.

The spectacle lens of the present invention comprises: a substrate; and an optical multilayer film formed on one side or both sides of the substrate as appropriate.

As the material of the substrate, for example, glass or a synthetic resin is used, and a thermosetting resin, for example, a polyurethane resin, a thiocarbamate resin, an episulfide resin, a polycarbonate resin, a polyester resin, an acrylic resin, a polyethersulfone resin, a poly-4-methyl-1-pentene resin, diethylene glycol diallyl carbonate, or a combination thereof is preferably used. Further, as a preferred resin having a high refractive index, for example, a polyurethane resin obtained by addition polymerization of a polyisocyanate compound and at least one of a polythiol and a sulfur-containing polyol can be given, and as a preferred resin having a higher refractive index, for example, an episulfide resin obtained by addition polymerization of a episulfide group and at least one of a polythiol and a sulfur-containing polyol can be given.

It is preferable to add an ultraviolet absorber to the base material.

The thickness of the base material is not particularly limited, but is preferably 4mm (millimeters) or less because the thickness increases, the internal transmittance increases proportionally, and the appearance and weight of the spectacle lens are relatively deteriorated.

In the spectacle lens, an intermediate film may be disposed between the base material and at least one of the optical multilayer films.

As the intermediate film, for example, a hard coat film can be formed.

The hard coating liquid is preferably uniformly applied to the surface of the substrate to form a hard coating film.

In addition, as the hard coat film, an organosiloxane resin containing inorganic oxide fine particles can be preferably used. The organosiloxane resin is preferably obtained by hydrolyzing and condensing an alkoxysilane. Specific examples of the organosiloxane resin include γ - (2, 3-glycidoxy) propyltrimethoxysilane (γ -Glycidoxypropyltriethoxysilane), γ - (2, 3-glycidoxy) propyltriethoxysilane (γ -glycidoxypropylsilane), Methyltrimethoxysilane (Methyltrimethoxysilane), ethyl silicate (ethyl silicate), and combinations thereof. These alkoxysilane compounds or a combination thereof are hydrolyzed with an acidic aqueous solution such as hydrochloric acid to produce a hydrolysis-condensation product of these alkoxysilanes.

On the other hand, specific examples of the material of the inorganic oxide fine particles include those obtained by mixing and crystallizing each sol of zinc oxide, silica (fine silica particles), alumina, titanium oxide (fine titania particles), zirconia (fine zirconia particles), tin oxide, beryllium oxide, antimony oxide, tungsten oxide, and cerium oxide alone or in combination of any 2 or more kinds thereof. The diameter of the inorganic oxide fine particles is preferably 1nm to 100nm, more preferably 1nm to 50nm, from the viewpoint of ensuring the transparency of the hard coat film. In addition, the amount (concentration) of the inorganic oxide fine particles is preferably 40 wt% or more and 60 wt% or less of the total components of the hard coat film from the viewpoint of ensuring the hardness and appropriate toughness of the hard coat film. In addition, at least one of a metal acetylacetonate and a metal salt of ethylenediamine tetraacetic acid may be added as a curing catalyst to the hard coating liquid, and a surfactant, a colorant, a solvent, and the like may be added as necessary to ensure at least one of adhesiveness to a substrate and easiness of formation.

The physical film thickness of the hard coat film is preferably 0.5 μm (μm) to 4.0 μm, and more preferably 1.0 μm to 3.0 μm. When the thickness is thinner than the range, it is difficult to obtain sufficient hardness, and the lower limit of the film thickness range is determined accordingly. On the other hand, if the thickness is larger than this range, problems relating to physical properties such as cracking and the occurrence of brittleness are more likely to occur, and the upper limit is determined based on this.

In addition, as the intermediate film, a base film may be added between the hard coat film and the surface of the substrate in order to improve the adhesion of the hard coat film. Examples of the material of the base film include urethane resin, acrylic resin, methacrylic resin, silicone resin, and a combination thereof. The base film is preferably formed by uniformly applying a base liquid to the surface of the substrate. The base solution is a solution obtained by mixing the resin material and the inorganic oxide fine particles in water or an alcohol solvent.

An optical multilayer film of a spectacle lens is formed on a base material or an intermediate film.

For example, the optical multilayer film is formed by a vacuum evaporation method or a sputtering method.

The optical multilayer film is preferably formed by alternately laminating low refractive index layers formed of a metal oxide low refractive index material and high refractive index layers formed of a high refractive index material, and is preferably a structure having odd number layers in total (5 layers in total, 7 layers in total, and the like). Further preferably, when the layer closest to the substrate (the layer closest to the substrate) is the 1 st layer, the odd-numbered layers are low refractive index layers, and the even-numbered layers are high refractive index layers.

The high refractive index material is, for example, zirconium oxide (ZrO)₂) Titanium oxide (TiO)₂) Tantalum pentoxide (Ta)₂O₅) Niobium oxide (Nb)₂O₅) Hafnium oxide (HfO)₂) Selenium oxide (CeO)₂) Or a mixture of two or more thereof, preferably ZrO₂。

And, the low refractive index material is, for example, silicon oxide (SiO)₂) Alumina (Al)₂O₃) Calcium fluoride (CaF)₂) Magnesium fluoride (MgF)₂) Or a mixture of two or more of them, preferably SiO₂。

From the viewpoint of ease of film design and film formation cost, it is preferable to use 2 or less of each of the high refractive index material and the low refractive index material, and more preferable to use 1 of each of the high refractive index material and the low refractive index material.

When a spectacle lens is formed, the optical multilayer film is provided so that the maximum values of the reflectance distribution in the visible light region are present in a wavelength range of 440nm to 460nm inclusive and 620nm to 640nm inclusive.

In addition, when forming a spectacle lens, by providing an optical multilayer film (particularly, a reflectance maximum value is arranged in a wavelength band of 440nm to 460 nm), the blue light blocking ratio is 7% or more (preferably 8%). Thereby, the eyes of the wearer can be protected from blue light.

When the spectacle lens is formed, the YI value is set to 6 or less by providing an optical multilayer film (particularly, the reflectance maximum value is arranged in a wavelength band of 620nm to 640 nm). This can suppress yellowing of the spectacle lens, and the spectacle lens is excellent in visibility and appearance.

In addition, when forming a spectacle lens, it is preferable to provide an optical multilayer film so that the perceived reflectance (D65 ray, 2-degree visual field) is 2.5% or less on both the convex surface side (front surface side, side far from the eye) and the concave surface side (back surface side, side near the eye) of the base material. Thus, the optical multilayer film also functions as an antireflection film, and reflection in the visible light region can be suppressed by the optical multilayer film, and the visibility of the spectacle lens is further excellent.

In addition, when forming a spectacle lens, it is preferable to provide an optical multilayer film so that the reflectance in a wavelength band of 400nm to 700nm on the convex surface side is 12% or less and the reflectance in a wavelength band of 400nm to 700nm on the concave surface side is 6% or less. This can suppress the generation of ghost images in the eyeglass lens, and the eyeglass lens is more excellent in visibility.

In the spectacle lens of the present invention, when a film of another kind such as an intermediate film or an antifouling film (water repellent film/oil repellent film) other than a hard coat film is added to at least one of the surface of the optical multilayer film and the surface of the optical multilayer film, and the optical multilayer film is formed on both surfaces, the kind of the film of another kind to be added may be changed from one another, or the presence or absence of the film may be changed from one another.

In addition, the glasses lens can be used for manufacturing glasses with excellent visibility and beautiful appearance, wherein the glasses can protect eyes from being damaged by blue light and reduce yellowing degree.

[ examples ] A method for producing a compound

Next, examples 1 to 15 of the present invention and comparative examples 1 to 6 not included in the present invention will be described as appropriate with reference to the drawings. Further, the present invention is not limited to the following examples. In addition, according to the understanding method of the present invention, there are cases where examples are comparative examples or where comparative examples are examples.

Base materials, etc

In the examples and comparative examples, both plastic spectacle lenses were made of thermosetting resin for spectacles, and the base materials thereof were circular shapes having standard sizes as plastic spectacle lenses.

The base material was used in the examples and comparative examples, and was a spherical lens having a lens center thickness of 1.9mm and a power of S-0.00 and made of a thiourethane resin having a refractive index of 1.60. Further, the base material itself is colorless and transparent without dyeing or the like.

Hard coating film, etc

In the examples and comparative examples, a hard coat film formed by applying a hard coat liquid was applied to both surfaces as an interlayer film.

A hard coat film in contact with the substrate was formed as follows by applying and heating the hard coat liquid to the substrate.

That is, 206g of methanol, 300g of methanol-dispersed titania sol (30% solid content, manufactured by Nikkiso catalytic chemical Co., Ltd.), 60g of γ -glycidoxypropyltrimethoxysilane, 30g of γ -glycidoxypropylmethyldiethoxysilane, and 60g of tetraethoxysilane were dropped into a reaction vessel, and 0.01N (predetermined concentration) aqueous hydrochloric acid solution was added to the mixture, followed by stirring and hydrolysis.

Subsequently, 0.5g of a flow regulator and 1.0g of a catalyst were added, and stirred at room temperature for 3 hours, thereby forming a hard coating liquid.

Then, the hard coating liquid was applied to both surfaces of the lens base material, and cured by heating at 120 ℃ for 1.5 hours to form a hard coating film having a film thickness of 2.5 μm.

Optical multilayer films of examples 1 to 5 and comparative examples 1 to 6, and the like

In examples 1 to 5 and comparative examples 1 to 6, optical multilayer films were formed on the double-sided hard coat layers, respectively.

The optical multilayer film is formed first on the convex surface side (front surface side) of the spectacle lens and then on the concave surface side (back surface side) of the spectacle lens by a vacuum vapor deposition method. The temperature at the start of vapor deposition was set to 60 ℃ and the degree of vacuum was set to 8.0X 10^-4Pa (pascal).

The optical multilayer films of examples 1 to 5 and comparative examples 1 to 6 have the following formula (Table 1) with the substrate side as the 1 st layer][ Table 11]Formed as described. The optical multilayer film comprises 5 or 7 layers in total, and the low refractive index layer in the 1 st, 3 rd, 5 th, and 7 th layers is made of SiO₂The 2 nd, 4 th and 6 th layers are made of SiO with refractive index ratio₂A large high refractive index layer is formed. The refractive index of the high refractive index layer can be adjusted not only by the material to be selected but also by the film formation rate, the presence or absence of ion assist treatment, the height of voltage, the type of ion, and the like. Examples 1 to 5 and comparative examples 1 to 6In optical multilayer films by selection of ZrO₂As the high refractive index layer, the ion assist condition was changed, and the refractive indices of the 2 nd layer and the other high refractive index layers were varied. Refractive index of each layer is shown in Table 1][ Table 11]All are refractive indices at wavelength 550 nm.

[ TABLE 1 ]

Example 1

[ TABLE 2]

Example 2

[ TABLE 3]

Example 3

[ TABLE 4]

Example 4

[ TABLE 5]

Example 5

[ TABLE 6 ]

Comparative example 1

[ TABLE 7 ]

Comparative example 2

[ TABLE 8 ]

Comparative example 3

[ TABLE 9 ]

Comparative example 4

[ TABLE 10 ]

Comparative example 5

[ TABLE 11 ]

Comparative example 6

Reflectance distributions of examples 1 to 5 and comparative examples 1 to 6

In examples 1 to 5 and comparative examples 1 to 6, the spectral reflectance distribution and the respective visual reflectances (D65 light ray, 2-degree field of view) on the convex and concave sides in the visible light region (here, a wavelength region of 380nm to 780 nm) were measured (fig. 1 to 3 and [ table 12]), and the respective reflectances on the convex and concave sides were counted at 450nm and 630nm ([ table 12 ]).

Examples 1 to 5 and comparative examples 1 to 6 are designed such that the optical multilayer film on at least the convex surface side has maximum values of reflectance distribution at wavelengths of 450nm and 630nm, respectively. The maximum value is set at a wavelength of 450nm from the viewpoint of improving the blue light blocking ratio, particularly, efficiently blocking light having a sharp intensity peak at a wavelength of 450nm emitted from various displays (blue among three primary colors emitted by LEDs) in Personal Computers (PCs) or portable terminals. The maximum value is set at a wavelength of 630nm from the viewpoint of suppressing yellowing due to the addition of a blue light-blocking function.

[ TABLE 12]

YI values and blue light blocking ratios of examples 1 to 5 and comparative examples 1 to 6

Further, YI values (Table 13) were obtained and blue light blocking ratios (Table 13) were calculated for examples 1 to 5 and comparative examples 1 to 6.

[ TABLE 13]

The YI value is expressed by X, Y, Z, which is the tristimulus value of the sample in the standard light of XYZ color system.

YI＝100(1.2769X-1.059Z)/Y

When the YI value is negative, blue becomes strong, and when the YI value is positive, yellow becomes strong, and the magnitude of the positive value of the YI value indicates the degree of yellowing (yellowness). The XYZ color system is used as a standard color system by CIE (international commission on illumination), and is a system based on red, green, blue, or additive color mixture of these three colors, which are three primary colors of light. Colorimeters for obtaining the stimulus value X, Y, Z in the XYZ colorimetric system are known, and the stimulus value X, Y, Z is obtained by multiplying the spectral energy of the measurement light by each isochromatic function relating to the stimulus value X, Y, Z for each wavelength and integrating the spectral energy over the entire wavelength range of the visible region.

The blue light blocking ratio is calculated according to the criterion relating to the blue light blocking ratio determined by the japan medical optical equipment industry association and using the calculation formula described in the japanese industrial standard "JIS T7333 annex C".

I.e., blue light blocking ratioIs obtained by subtracting the spectral transmittance tau weighted by the irradiance distribution of the sunlight and the radiation spectrum risk thereof (blue light hazard function B (lambda)) from 1_sb(wavelength of 380-500 nm, 5nm step length, formula 1]) And the resulting value.

[ formula 1 ]

τ (λ): transmittance

E_sλ(lambda) illuminance of spectral radiation of sunlight

B (λ) blue light hazard function

Evaluation of examples 1 to 5 and comparative examples 1 to 6

The evaluation results of examples 1 to 5 and comparative examples 1 to 6 as described above are shown in the right part of [ Table 13 ].

In comparative examples 1 to 3, the convex surface side had a 7-layer structure and the concave surface side had a 5-layer structure, and the reflectance characteristics of the convex surface side were different from each other, and the reflectances at wavelengths of 450nm and 630nm were different from each other. In comparative examples 1 and 2, since the reflectance at wavelengths of 450nm and 630nm is relatively high, the reflectance on the convex surface side exceeds 2.5%, the antireflection performance is poor (reflectance on the visual side "×"), and ghost images (projection images) of a level which is worried by the wearer are also generated (ghost images "×"), and the visibility during wearing is poor. Regarding ghosting, subjective evaluation was made as to whether projection onto a lens while being worn directly below a fluorescent lamp would hinder visibility, but a case where the reflectance is not more than 12% in a wavelength band of 400nm to 700nm on the convex side (the side away from the eye) and the reflectance is not more than 6% in the same wavelength band on the concave side (the side close to the eye) was taken as a criterion for obtaining a good evaluation (ghost "∘"). In comparative example 2, the YI value exceeded 6.0, and yellowing was also evaluated as comparatively strong (YI "×"). In comparative example 3, since the reflectance at wavelengths of 450nm and 630nm is relatively low, the antireflection performance is good (apparent reflectance ". smallcircle"). However, the blue light blocking ratio was less than 8%, and was relatively insufficient (blue light blocking ratio "x"). In addition, the evaluation of the blue light blocking ratio may be relaxed to not less than 7% as good, in which case the evaluation of the blue light blocking ratio of comparative example 3 becomes good (blue light blocking ratio ". DELTA."), and comparative example 3 becomes an example belonging to the present invention.

In comparative example 4, the convex side and the concave side have a 7-layer structure and function on both sides, but ghost images are generated particularly on the concave side.

In comparative example 5, the convex surface side and the concave surface side have a 5-layer structure, and the antireflection film is commonly used on both surfaces, but the blue light blocking ratio is relatively insufficient.

In comparative example 6, the convex side and the concave side have the same 5-layer structure, and the antireflection film for a blue-blocking lens commonly used on both surfaces has a sufficient blue-blocking ratio, but the YI value greatly exceeds 6.0(10.9), and yellowing is enhanced. In addition, ghosting is also seen.

On the other hand, in examples 1 to 4, the convex surface side had a 7-layer structure, the concave surface side had a 5-layer structure, and the reflectance characteristics of the convex surface side were different from each other, but the reflectance of each maximum value of the wavelengths 450nm and 630nm was appropriately set, and therefore, the reflectance was good in all items of YI value, reflectance of visual sensation, blue light blocking ratio, and ghost.

In example 5, the convex surface side and the concave surface side have a 7-layer structure, and function on both surfaces, and the reflectance of each maximum value of the wavelengths 450nm and 630nm is appropriately set, so that the reflectance is good in all the evaluation items.

Evaluation of examples 6 to 15 based on examples 1 to 5, and the like

Based on examples 1 to 5, examples 6 to 15 in which the respective maximum values of the reflectance distribution in the visible light region were shifted by ± 10nm to either one of 440nm and 460nm and either one of 620nm and 640nm were formed by mainly adjusting the physical film thicknesses of the respective layers in the optical multilayer film on the convex side, and the evaluation was performed in the same manner as in examples 1 to 5.

Fig. 4 and 5 show spectral reflectance distributions in the visible light region in examples 6 to 9 and 10 to 15.

Further, the following [ tables 14] and 15] show the same evaluation results of examples 10 to 15 as those of [ tables 12] and [ tables 13] of examples 1 to 5.

[ TABLE 14]

[ TABLE 15]

Examples 6 and 7 were designed based on example 1, with the former maximum values being 440nm and 620nm, and the latter maximum values being 460nm and 640 nm.

Examples 8 and 9 were designed based on example 2, with the former maximum values at 440nm and 620nm, and the latter maximum values at 460nm and 640 nm.

Examples 10 and 11 were designed based on example 3, with the former maximum values being 440nm and 620nm, and the latter maximum values being 460nm and 640 nm.

Examples 12 and 13 were designed based on example 4, with the former maximum values being 440nm and 620nm, and the latter maximum values being 460nm and 640 nm.

Examples 14 and 15 were designed based on example 5, with the former maximum values at 440nm and 620nm, and the latter maximum values at 460nm and 640 nm.

In examples 6 to 15, since the reflectance of each maximum value was also set as appropriate, favorable evaluations were obtained for all items of YI value, reflectance of visual perception, blue light blocking ratio, and ghost.

Therefore, not only can the maximum values of the reflectance distribution in the visible light region be arranged at 450nm and 630nm, which can provide an eyeglass lens with good yellowing reduction and visibility while maintaining the performance of preventing blue light damage, but also the maximum values of the reflectance distribution in the visible light region can be arranged at a wavelength range of 440nm to 460nm inclusive and a wavelength range of 620nm to 640nm inclusive, which can provide an eyeglass lens with good yellowing reduction and visibility while maintaining the performance of preventing blue light damage.

Summary of the invention

As in the above examples, if an optical multilayer film is formed on a base material, the maximum values of the reflectance distribution exist in the wavelength range of 440nm to 460nm inclusive and the wavelength range of 620nm to 640nm inclusive, the blue light blocking ratio calculated using the calculation formula described in japanese industrial standard "JIS T7333 annex C" is 7% or more (preferably 8% or more), and the YI value is 6 or less, the spectacle lens and the spectacles using the spectacle lens have sufficient protection performance against blue light, and are excellent in visibility and beauty.

Further, if the perceived reflectance is made to be 2.5% or less as in the above-described examples, reflection in the visible light region can be suppressed, and the spectacle lens and spectacles using the spectacle lens are excellent in visibility.

Further, as in the above-described embodiments, if the reflectance for the wavelength band of 400nm to 700nm is 12% or less on the convex surface side and the reflectance for the wavelength band of 400nm to 700nm is 6% or less on the concave surface side, the generation of ghost images can be suppressed, and the eyeglass lens and the eyeglasses using the eyeglass lens are excellent in visibility.