JP3718185B2 - Eyeglass lenses - Google Patents

Description

（式中、ｍおよびｎは、同一または異なって１〜４の整数を表す）で表されるスクアリリウム化合物であることを特徴とする眼鏡用レンズを提供する。該眼鏡用レンズにおける該合成樹脂基材は、赤外線吸収もしくは反射剤を含有していてもよい。
【０００７】
【発明の実施の形態】
本明細書中において、標準比視感度曲線の中心波長とは、およそ５５５ｎｍを指し、標準比視感度曲線の中心波長近傍とは、概ね５３０〜５８５ｎｍの波長域を指す。また、標準比視感度曲線の中心波長近傍に極大吸収値を有する有機色素としては、式（Ｉ）：
【化３】

（式中、ｍおよびｎは、同一または異なって１〜４の整数を表す）で表されるスクアリリウム化合物［以下、式（Ｉ）で表される化合物を化合物（Ｉ）という。他の式番号の化合物についても同様である］が好適である。
【０００８】
光線吸収用の色素として従来ガラスに使用されたことのあるネオジムやジジムは、無機材料であるため、高温で熔融して作るガラスレンズにおいては金属イオンの形で含有させることができるが、合成樹脂に練り込んだ場合、樹脂に熔融しないため十分に分散させることができず、合成樹脂には使用できなかった。本発明では、前記スクアリリウム化合物が合成樹脂に熔融し、かつ、これを光線吸収剤として使用することにより太陽光線の眩しさを抑えることができるようになったのである。眩しさを抑える目的のためには、理想的には５５５ｎｍに最大吸収値を有するものがよいが、必ずしもそうである必要はなく、吸収ピークが５５５ｎｍ近傍であれば吸収ピークが幅を持つため標準比視感度曲線の中心波長近傍をかなりよく吸収し、実用上は問題なく眩しさを抑えることができる。
【０００９】
上記のスクアリリウム化合物自体は公知であり、例えばAngew. Chem. Internat. Edit., 7, 530-535(1968) 、Liebigs Ann. Chem., 712, 123(1968)等に記載の方法あるいはそれらに準じて製造することができる。
【００１０】
紫外線吸収剤としては、城北化学（株）製のＪＦ−８６、シブロ化成（株）のシーソーブ７０５等を使用できる。
【００１１】
青色光吸収剤としては、日本化薬（株）製のカヤセットイエローＡ−Ｇ、三井東圧染料（株）製のＰＳオレンジＧＧ等を使用できる。
【００１２】
赤外線吸収もしくは反射剤としては、日本化薬（株）製のＩＲ７５０、大日本インキ化学工業（株）製のＩＲアディティブ２００等を使用できる。
【００１３】
合成樹脂基材としては、その卓越した耐衝撃性からしてポリカーボネートが最適であり、その他、ポリメチルメタクリレート（ＰＭＭＡ）、ＣＲ−３９（米国ＰＰＧインダストリーズ社）またはセルロースアセテート、セルロースプロピオネート等の繊維素系プラスチック等を使用することもできる。
【００１４】
５５０〜５８５ｎｍの波長範囲に透過率曲線の極小値を有し、該極小値での透過率を２５％以下とするのは、太陽光線のうち最も眩しさを感じさせる波長域の光線透過率を抑えることを目的としており、好ましいのは、極小値での透過率を２０％以下とすることであり、さらに好ましいのは、極小値での透過率を１５％以下とすることである。
【００１５】
５９０〜６６０ｎｍの波長範囲における平均透過率を１５％以上とするのは、橙色光の透過率を維持するためであり、好ましくは、２０％以上とする。さらに、５９０〜６６０ｎｍの波長範囲に透過率曲線の極大値を有し、該極大値での透過率を３０％以上とするのが好ましく、なかでも特に好ましいのは、極大値での透過率を３５％以上とすることである。この目的は、合成樹脂基材に標準比視感度曲線の中心波長近傍に極大吸収値を有する有機色素、紫外線吸収剤および青色光吸収剤に加えて赤外線吸収もしくは反射剤を含有させることにより効果的に達成することができる。これにより、橙色光の透過率を高い水準に維持する一方、赤色光が過剰に透過することを防止し、全透過光の色バランスを適切なものとすることができる。
【００１６】
４７０〜５５０ｎｍの波長範囲における平均透過率を１０％以上とするのは、透過光の色バランスと視野の明るさを確保するためである。とりわけ、４７０〜５５０ｎｍの波長範囲のいずれの波長においても透過率を１５％以上とすることが好ましく、特に好ましいのは、２０％以上とすることである。
【００１７】
なお、４００〜４５０ｎｍの波長範囲での光線透過率は、青色光吸収剤によって実質的に０となるのが好ましい。
【００１８】
次に、本発明の眼鏡用レンズの一例について説明する。
【００１９】
前記した標準比視感度曲線の中心波長近傍に極大吸収値を有する有機色素、紫外線吸収剤、青色光吸収剤および赤外線吸収剤もしくは反射剤をレンズ基材である合成樹脂原料に添加、混合した後、レンズ全体に均一に含有されるよう射出成形法で成形することにより眼鏡用レンズを得ることができる。また、吸収剤等の一部、例えば、赤外線反射剤をレンズ表面に真空蒸着法等によってコーティングすることも可能である。
【００２０】
有機色素の含量としては、合成樹脂基材に対して０.０００１〜０.０１重量％が好ましく、０.０００５〜０.００５重量％が特に好ましい。紫外線吸収剤の含量としては、合成樹脂基材に対して０.１〜１.０重量％が好ましく、０.３〜０.８重量％が特に好ましい。青色光吸収剤の含量としては、合成樹脂基材に対して０.００１〜０.０２重量％が好ましく、０.００２〜０.０１重量％が特に好ましい。赤外線吸収もしくは反射剤の含量としては、合成樹脂基材に対して０.００１〜０.０５重量％が好ましく、０.００１〜０.０２重量％が特に好ましい。
【００２１】
また、本発明の実施に際しては、偏光フィルム等の偏光素子を合成樹脂基材と組み合わせて眼鏡用レンズとすることも可能である。その場合、合成樹脂基材と偏光素子とをインサート成形法等によって一体として作製することもできる。インサート成形法による場合は、偏光フィルムの片面または両面にプラスチックシートを積層し一体化してなる偏光素子を予め金型内に挿入した上で射出成形を行い、偏光素子と樹脂とを一体化させる。偏光素子と合成樹脂基材を組み合わせることによる眼鏡用レンズとしての透過率減少に関しては、含有させる色素量を変化させる等により眼鏡用レンズとして本発明における透過率および透過率曲線の範囲に入るように調整する。
【００２２】
【実施例】
実施例１．

【化４】

上記の混合物を２５０〜３００℃に温度調節された射出成形機［日精樹脂工業（株）製］で外形７５ｍｍ、中心厚２ｍｍのレンズに成形した。得られたレンズの分光透過率を図１に示す。このレンズは、強い太陽光線の下でも眩しさを全く感じさせず、トンネル内の走行時にも視野内の物体認識に何らの支障も来さなかった。
【００２３】
実施例２．

上記の混合物を２５０〜３００℃に温度調節された射出成形機［日精樹脂工業（株）製］で外形７５ｍｍ、中心厚２ｍｍのレンズに成形した。得られたレンズの分光透過率を図４に示す。このレンズは、強い太陽光線の下でも眩しさを全く感じさせず、トンネル内の走行時にも視野内の物体認識に何らの支障も来さなかった。
【００２４】
実施例３．

【化５】

上記の混合物を２５０〜３００℃に温度調節された射出成形機［日精樹脂工業（株）製］で外形７５ｍｍ、中心厚２ｍｍのレンズに成形した。得られたレンズの分光透過率を図５に示す。このレンズは、強い太陽光線の下でも眩しさを全く感じさせず、トンネル内の走行時にも視野内の物体認識に何らの支障も来さなかった。
【００２５】
実施例４．
偏光フィルムの両面にポリカーボネートのシートを積層した偏光シート［三菱ガス化学（株）製”ユーピロンポーラ”、０.８ｍｍ厚］を眼鏡レンズの輪郭に一致する形状に打ち抜いた偏光素子を予め準備し、これを金型面に安定するように配置した。

上記の混合物を２５０〜３００℃に温度調節された射出成形機［日精樹脂工業（株）製］で射出形成し、偏光素子と射出樹脂が一体化した外形７５ｍｍ、中心厚２ｍｍのレンズを得た。得られたレンズの分光透過率を図６に示す。このレンズは、強い太陽光線の下でも眩しさを全く感じさせず、反射光のギラツキを防ぎ、また、トンネル内の走行時にも視野内の物体認識に何らの支障も来さなかった。
【００２６】
実施例５．

上記の混合物を２５０〜３００℃に温度調節された射出成形機［日精樹脂工業（株）製］で外形７５ｍｍ、中心厚２ｍｍのレンズに成形した。得られたレンズの分光透過率を図７に示す。このレンズは、強い太陽光線の下でも眩しさを全く感じさせず、トンネル内の走行時にも視野内の物体認識に何らの支障も来さなかった。
【００２７】
実施例６．
偏光フィルムの両面にポリカーボネートのシートを積層した偏光シート［三菱ガス化学（株）製”ユーピロンポーラ”、０.８ｍｍ厚］を眼鏡レンズの輪郭に一致する形状に打ち抜いた偏光素子を予め準備し、これを金型面に安定するように配置した。

上記の混合物を２５０〜３００℃に温度調節された射出成形機［日精樹脂工業（株）製］で射出成形し、偏光素子と射出樹脂が一体化した外形７５ｍｍ、中心厚２ｍｍのレンズを得た。得られたレンズの分光透過率を図８に示す。このレンズは、強い太陽光線の下でも眩しさを全く感じさせず、反射光のギラツキを防ぎ、また、トンネル内の走行時にも視野内の物体認識に何らの支障も来さなかった。
【００２８】
【発明の効果】
本発明により、太陽光線の眩しさを軽減し、橙色光に対する高い透過率によりトンネル内でのナトリウムランプの照明（中心波長５８９ｎｍ）にも順応でき、一方、有害な紫外線、青色光、必要により赤外線を阻止することができる、広範な用途に耐える実用的な眼鏡用レンズを提供することができる。
【図面の簡単な説明】
【図１】 実施例１で得られたレンズの分光透過率を示すグラフである。
【図２】 標準比視感度曲線を示すグラフである。
【図３】 従来の最も一般的なサングラスの透過率の傾向を示すグラフである。
【図４】 実施例２で得られたレンズの分光透過率を示すグラフである。
【図５】 実施例３で得られたレンズの分光透過率を示すグラフである。
【図６】 実施例４で得られたレンズの分光透過率を示すグラフである。
【図７】 実施例５で得られたレンズの分光透過率を示すグラフである。
【図８】 実施例６で得られたレンズの分光透過率を示すグラフである。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a spectacle lens that reduces the glare of sunlight while maintaining the brightness of the visual field.
[0002]
[Prior art]
Sun rays contain rays that are harmful to the eyes and make the eyes feel dazzling. Sunglasses are used to adjust the transmission of sunlight, and are made for the purpose of suppressing the transmittance near the center wavelength of the standard relative luminous sensitivity curve (FIG. 2) in order to suppress glare. However, in general sunglasses, the transmittance of other wavelength portions is suppressed as shown in FIG. For this reason, when sunglasses are used in an environment where the amount of light such as twilight is small, the field of view becomes generally dark, which may hinder the visual recognition of objects in the outside world. That is, as a result of trying to suppress glare, the total amount of transmitted light may be excessively reduced, and the object may not be sufficiently visible.
[0003]
Sunglasses containing neodymium or didymium in the glass absorb neodymium or didymium in the vicinity of the center wavelength of the standard relative luminous sensitivity curve while maintaining general brightness. Sunglasses are known. However, from the viewpoint of eye protection, it is preferable to use synthetic resin such as plastic, particularly polycarbonate with high impact resistance, as the material of the glasses rather than glass. However, none of the plastics, particularly polycarbonate, satisfies this demand. Japanese Patent Publication No. 53-39910 discloses a spectacle lens that absorbs a wide range of light having a good visibility of 550 to 600 nm. However, this spectacle lens uses diethylene glycol bisallyl carbonate (CR-39) as a material. It is difficult to dye when polycarbonate is used. Further, the spectacle lens has a light transmittance that gradually decreases in the vicinity of 550 to 650 nm (yellow to orange). When the transmittance of yellow light is lowered for the purpose of enhancing the antiglare effect, The transmittance is also reduced. Therefore, if the proper usage of the glasses using such a lens is mistaken, for example, the illumination of the orange sodium lamp in the tunnel (center wavelength is 589 nm) is difficult to transmit through the lens, and the field of view is darkened. There is a fear.
[0004]
[Problems to be solved by the invention]
The objective of this invention is providing the lens for spectacles which suppressed glare while maintaining the brightness of a visual field.
[0005]
[Means for Solving the Problems]
The present inventors have found that the above-mentioned problems can be solved by suppressing the light transmittance and the like in a certain wavelength range of sunlight, and have completed the present invention.
[0006]
The present invention contains a UV absorber and a blue light absorber together with an organic dye having a maximum absorption value in the vicinity of the center wavelength of the standard relative luminous sensitivity curve, and has a minimum value of the transmittance curve in a wavelength range of 550 to 585 nm. And a synthetic resin substrate having a transmittance of 25% or less at the minimum value, an average transmittance of 15% or more in the wavelength range of 590 to 660 nm, and an average transmittance of 10% or more in the wavelength range of 470 to 550 nm. Wherein the organic dye having a maximum absorption value in the vicinity of the central wavelength of the standard relative luminous sensitivity curve is represented by the formula (I):
[Chemical formula 2]

(Wherein, m and n are the same or different and each represents an integer of 1 to 4). The synthetic resin substrate in the eyeglass lens may contain an infrared absorbing or reflecting agent.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
In this specification, the center wavelength of the standard relative luminous efficiency curve indicates approximately 555 nm, and the vicinity of the central wavelength of the standard relative luminous sensitivity curve indicates a wavelength region of approximately 530 to 585 nm. Moreover, as an organic pigment | dye which has the maximum absorption value near the center wavelength of a standard specific luminous efficiency curve, Formula (I)
[Chemical 3]

(Wherein m and n are the same or different and each represents an integer of 1 to 4) represented by a squarylium compound [hereinafter, a compound represented by formula (I) is referred to as compound (I). The same applies to the compounds of other formula numbers].
[0008]
Since neodymium and didymium, which have been used in conventional glasses as light-absorbing dyes, are inorganic materials, they can be contained in the form of metal ions in glass lenses made by melting at high temperatures. When kneaded into the resin, it could not be sufficiently dispersed because it did not melt into the resin, and could not be used as a synthetic resin. In the present invention, the squarylium compound is melted in a synthetic resin, and by using this as a light absorber, the dazzling of sunlight can be suppressed. For the purpose of suppressing glare, ideally, a film having a maximum absorption value at 555 nm is preferable, but this is not necessarily so. If the absorption peak is in the vicinity of 555 nm, the absorption peak has a width. It absorbs the vicinity of the center wavelength of the specific visibility curve fairly well and can suppress glare without problems in practice.
[0009]
The above squarylium compounds are known per se, for example, the methods described in Angew. Chem. Internat. Edit., 7 , 530-535 (1968), Liebigs Ann. Chem., 712 , 123 (1968), or the like Can be manufactured.
[0010]
As the ultraviolet absorber, JF-86 manufactured by Johoku Chemical Co., Ltd., Seasorb 705 manufactured by Sibro Kasei Co., Ltd., and the like can be used.
[0011]
As the blue light absorber, Kayaset Yellow AG manufactured by Nippon Kayaku Co., Ltd., PS Orange GG manufactured by Mitsui Toatsu Dye Co., Ltd., or the like can be used.
[0012]
As the infrared absorbing or reflecting agent, IR750 manufactured by Nippon Kayaku Co., Ltd., IR Additive 200 manufactured by Dainippon Ink & Chemicals, Inc. can be used.
[0013]
As the synthetic resin base material, polycarbonate is most suitable because of its excellent impact resistance. In addition, polymethyl methacrylate (PMMA), CR-39 (US PPG Industries, Inc.) or cellulose acetate, cellulose propionate, etc. Fibrous plastics can also be used.
[0014]
Having the minimum value of the transmittance curve in the wavelength range of 550 to 585 nm, and setting the transmittance at the minimum value to 25% or less, the light transmittance in the wavelength range where the most dazzling feeling is felt among the sun rays. For the purpose of suppressing, it is preferable to set the transmittance at the minimum value to 20% or less, and more preferable to set the transmittance at the minimum value to 15% or less.
[0015]
The reason why the average transmittance in the wavelength range of 590 to 660 nm is 15% or more is to maintain the transmittance of orange light, and is preferably 20% or more. Furthermore, it has a maximum value of the transmittance curve in the wavelength range of 590 to 660 nm, and the transmittance at the maximum value is preferably 30% or more, and the transmittance at the maximum value is particularly preferable. 35% or more. The purpose of this is to make the synthetic resin base material contain an infrared absorbing or reflecting agent in addition to an organic dye, an ultraviolet absorbing agent and a blue light absorbing agent having a maximum absorption value in the vicinity of the central wavelength of the standard relative luminous sensitivity curve. Can be achieved. Thereby, while maintaining the transmittance of orange light at a high level, it is possible to prevent red light from being excessively transmitted and to make the color balance of all transmitted light appropriate.
[0016]
The reason why the average transmittance in the wavelength range of 470 to 550 nm is 10% or more is to ensure the color balance of transmitted light and the brightness of the field of view. In particular, the transmittance is preferably 15% or more at any wavelength in the wavelength range of 470 to 550 nm, and particularly preferably 20% or more.
[0017]
In addition, it is preferable that the light transmittance in the wavelength range of 400-450 nm becomes substantially 0 with a blue light absorber.
[0018]
Next, an example of the spectacle lens of the present invention will be described.
[0019]
After adding and mixing the organic dye, the ultraviolet absorber, the blue light absorber and the infrared absorber or reflector having the maximum absorption value near the center wavelength of the standard relative luminous sensitivity curve described above to the synthetic resin raw material as the lens substrate A spectacle lens can be obtained by molding by an injection molding method so as to be uniformly contained in the entire lens. It is also possible to coat a part of the absorber, for example, an infrared reflecting agent on the lens surface by a vacuum deposition method or the like.
[0020]
The content of the organic dye is preferably 0.0001 to 0.01% by weight, particularly preferably 0.0005 to 0.005% by weight, based on the synthetic resin substrate. The content of the ultraviolet absorber is preferably from 0.1 to 1.0% by weight, particularly preferably from 0.3 to 0.8% by weight, based on the synthetic resin substrate. The content of the blue light absorber is preferably 0.001 to 0.02% by weight, particularly preferably 0.002 to 0.01% by weight, based on the synthetic resin substrate. The content of the infrared absorbing or reflecting agent is preferably 0.001 to 0.05% by weight, particularly preferably 0.001 to 0.02% by weight, based on the synthetic resin substrate.
[0021]
In carrying out the present invention, a polarizing lens such as a polarizing film can be combined with a synthetic resin base material to form a spectacle lens. In that case, the synthetic resin base material and the polarizing element can be integrally manufactured by an insert molding method or the like. In the case of the insert molding method, a polarizing element formed by laminating and integrating a plastic sheet on one side or both sides of a polarizing film is inserted into a mold in advance, and injection molding is performed to integrate the polarizing element and the resin. Regarding the reduction in transmittance as a spectacle lens by combining a polarizing element and a synthetic resin base material, the spectacle lens is changed within the transmittance and transmittance curves in the present invention by changing the amount of the pigment to be contained. adjust.
[0022]
【Example】
Example 1.

[Formula 4]

The above mixture was molded into a lens having an outer diameter of 75 mm and a center thickness of 2 mm using an injection molding machine (manufactured by Nissei Plastic Industry Co., Ltd.) whose temperature was adjusted to 250 to 300 ° C. The spectral transmittance of the obtained lens is shown in FIG. This lens did not feel any glare even under strong sunlight, and it did not interfere with object recognition in the field of view even when traveling in a tunnel.
[0023]
Example 2

The above mixture was molded into a lens having an outer diameter of 75 mm and a center thickness of 2 mm using an injection molding machine (manufactured by Nissei Plastic Industry Co., Ltd.) whose temperature was adjusted to 250 to 300 ° C. The spectral transmittance of the obtained lens is shown in FIG. This lens did not feel any glare even under strong sunlight, and it did not interfere with object recognition in the field of view even when traveling in a tunnel.
[0024]
Example 3 FIG.

[Chemical formula 5]

The above mixture was molded into a lens having an outer diameter of 75 mm and a center thickness of 2 mm using an injection molding machine (manufactured by Nissei Plastic Industry Co., Ltd.) whose temperature was adjusted to 250 to 300 ° C. The spectral transmittance of the obtained lens is shown in FIG. This lens did not feel any glare even under strong sunlight, and it did not interfere with object recognition in the field of view even when traveling in a tunnel.
[0025]
Example 4
A polarizing element in which a polycarbonate sheet laminated on both sides of a polarizing film [Mitsubishi Gas Chemical Co., Ltd. “Iupilon Polar”, 0.8 mm thickness] is punched into a shape that matches the contour of the spectacle lens is prepared in advance. This was arrange | positioned so that it might stabilize on the metal mold | die surface.

The above mixture was injection-molded with an injection molding machine (manufactured by Nissei Plastic Industry Co., Ltd.) whose temperature was adjusted to 250 to 300 ° C. to obtain a lens having an outer diameter of 75 mm and a center thickness of 2 mm, in which the polarizing element and the injection resin were integrated. . The spectral transmittance of the obtained lens is shown in FIG. This lens did not feel any glare even under strong sunlight, prevented glare from reflected light, and did not interfere with object recognition in the field of view even when traveling in a tunnel.
[0026]
Example 5 FIG.

The above mixture was molded into a lens having an outer diameter of 75 mm and a center thickness of 2 mm using an injection molding machine (manufactured by Nissei Plastic Industry Co., Ltd.) whose temperature was adjusted to 250 to 300 ° C. The spectral transmittance of the obtained lens is shown in FIG. This lens did not feel any glare even under strong sunlight, and it did not interfere with object recognition in the field of view even when traveling in a tunnel.
[0027]
Example 6
A polarizing element in which a polycarbonate sheet laminated on both sides of a polarizing film [Mitsubishi Gas Chemical Co., Ltd. “Iupilon Polar”, 0.8 mm thickness] is punched into a shape that matches the contour of the spectacle lens is prepared in advance. This was arrange | positioned so that it might stabilize on the metal mold | die surface.

The above mixture was injection molded with an injection molding machine (manufactured by Nissei Plastic Industry Co., Ltd.) whose temperature was adjusted to 250 to 300 ° C. to obtain a lens having an outer diameter of 75 mm and a center thickness of 2 mm, in which the polarizing element and the injection resin were integrated. . The spectral transmittance of the obtained lens is shown in FIG. This lens did not feel any glare even under strong sunlight, prevented glare from reflected light, and did not interfere with object recognition in the field of view even when traveling in a tunnel.
[0028]
【The invention's effect】
The present invention reduces the glare of sunlight and adapts to the illumination of the sodium lamp in the tunnel (center wavelength 589 nm) due to the high transmittance of orange light, while harmful ultraviolet rays, blue light, infrared rays if necessary Therefore, it is possible to provide a practical spectacle lens that can withstand a wide range of applications.
[Brief description of the drawings]
1 is a graph showing the spectral transmittance of a lens obtained in Example 1. FIG.
FIG. 2 is a graph showing a standard relative luminous sensitivity curve.
FIG. 3 is a graph showing the transmittance trend of the most common conventional sunglasses.
4 is a graph showing the spectral transmittance of the lens obtained in Example 2. FIG.
5 is a graph showing the spectral transmittance of the lens obtained in Example 3. FIG.
6 is a graph showing the spectral transmittance of the lens obtained in Example 4. FIG.
7 is a graph showing the spectral transmittance of the lens obtained in Example 5. FIG.
8 is a graph showing the spectral transmittance of the lens obtained in Example 6. FIG.

Claims (4)

It contains an ultraviolet absorber and a blue light absorber together with an organic dye having a maximum absorption value in the vicinity of the center wavelength of the standard relative luminous sensitivity curve, and has a minimum value of the transmittance curve in the wavelength range of 550 to 585 nm. A synthetic resin base material having a transmittance of 25% or less, an average transmittance of 15% or more in the wavelength range of 590 to 660 nm, and an average transmittance of 10% or more in the wavelength range of 470 to 550 nm, Further, the organic dye having a maximum absorption value near the center wavelength of the standard relative luminous sensitivity curve is represented by the formula (I):

(Wherein, m and n are the same or different and each represents an integer of 1 to 4). Further, it contains an infrared absorbing or reflecting agent, has a maximum value of the transmittance curve in the wavelength range of 590 to 660 nm, the transmittance at the maximum value is 30% or more, and any of the wavelength range of 470 to 550 nm The spectacle lens according to claim 1, comprising a synthetic resin base material having a transmittance of 15% or more even at a wavelength. The spectacle lens according to claim 1 or 2, wherein the polarizing element is integrated with a synthetic resin substrate. The spectacle lens according to any one of claims 1 to 3, wherein the synthetic resin base material is polycarbonate resin.

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