JP3198950U - Polarized lens - Google Patents

Polarized lens Download PDF

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JP3198950U
JP3198950U JP2015002436U JP2015002436U JP3198950U JP 3198950 U JP3198950 U JP 3198950U JP 2015002436 U JP2015002436 U JP 2015002436U JP 2015002436 U JP2015002436 U JP 2015002436U JP 3198950 U JP3198950 U JP 3198950U
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lens
polarizing
resin
glass
polarizing film
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勇一 酒井
勇一 酒井
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株式会社シューユウ
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Abstract

【課題】 レンズ厚さが薄くてその重量の軽い偏光レンズの提供。【解決手段】 偏光膜1を間に挟み込み、表面側にはガラスレンズ2を、そして裏面側には樹脂レンズ3を設けた積層構造とし、上記裏面側の樹脂レンズ3の厚さを0.5mm以下としている。【選択図】 図2PROBLEM TO BE SOLVED: To provide a polarizing lens having a small lens thickness and a light weight. SOLUTION: A laminated structure in which a polarizing film 1 is sandwiched therebetween, a glass lens 2 is provided on the front side, and a resin lens 3 is provided on the back side. The thickness of the resin lens 3 on the back side is 0.5 mm. It is as follows. [Selection] Figure 2

Description

本考案は、メガネを掛け易くする為に重量を軽くすると共に厚さを薄くした偏光レンズに関するものである。   The present invention relates to a polarizing lens that is lightened and thinned to make it easier to wear glasses.

太陽光線は縦波と横波の混合波であるが、光学的異方性を有する偏光レンズを該光が通過する場合、上記縦波又は横波のいずれかの振動波を選択して通過させ、他方の波の通過を阻止することが出来る。従って、太陽光の反射によって水面や路面、又は屋根瓦等がギラ付いて見えることはなく、太陽光の強い夏場には眩しくなくて最適なレンズである。勿論、単に太陽光線を遮るだけであるならばサングラスでもよいが、該サングラスには太陽光線の片方の振動波を遮るといったこの機能は存在せず、反射光のギラ付きを完全に防止することは出来ない。   Sunlight is a mixed wave of longitudinal and transverse waves, but when the light passes through a polarizing lens having optical anisotropy, either the longitudinal wave or the transverse wave is selected and passed, Can prevent the passage of waves. Therefore, the water surface, road surface, roof tiles, etc. do not appear to be glaring due to the reflection of sunlight, and it is an optimal lens that is not dazzling in the summertime when sunlight is strong. Of course, sunglasses may be used as long as they simply block the sun rays, but the sunglasses do not have this function of blocking the vibration wave of one side of the sun rays, and it is possible to completely prevent glare of reflected light. I can't.

ところで、この偏光レンズは偏光膜を透明なガラスレンズ層と積層した構造としている。図3は従来の一般的な偏光レンズの断面を示した場合であり、表面側ガラスレンズ(イ)、裏面側ガラスレンズ(ロ)、及び偏光膜(ハ)が積層した構造と成っている。表面側ガラスレンズ(イ)に入射した光は、偏光膜(ハ)にて縦波又は横波のいずれかの振動波の通過が阻止され、何れか一方の振動波が裏面側ガラスレンズ(ロ)を通過することが出来る。
ここで、表面側ガラスレンズ(イ)の厚さは約1.0mm、裏面側ガラスレンズ(ロ)の厚さは約1.0mmと成っていて、一般的に厚いレンズに成ってしまう。
By the way, this polarizing lens has a structure in which a polarizing film is laminated with a transparent glass lens layer. FIG. 3 shows a cross section of a conventional general polarizing lens, in which a front-side glass lens (A), a rear-side glass lens (B), and a polarizing film (C) are laminated. The light incident on the front-side glass lens (A) is blocked by the polarizing film (C) from passing either a longitudinal wave or a transverse wave. Can pass through.
Here, the thickness of the front side glass lens (A) is about 1.0 mm, and the thickness of the back side glass lens (B) is about 1.0 mm, which generally results in a thick lens.

偏光膜(ハ)は非常に薄い為にその重量は軽いが、上記表面側ガラスレンズ(イ)及び裏面側ガラスレンズ(ロ)は、その厚さも大きくて重たくなる。従って、図3に示すような積層構造の偏光レンズの重量は大きく成り、メガネのフロント部が重たくなってしまう。特に、軽量化が主流と成っている近年のメガネには適合しない。フレーム構造を如何に軽量化してもフロント部のリムに嵌るレンズが重くては、該フレームの軽量化も台無しになってしまう。   Since the polarizing film (c) is very thin, its weight is light. However, the surface side glass lens (b) and the back side glass lens (b) are large and heavy. Therefore, the weight of the polarizing lens having the laminated structure as shown in FIG. 3 is increased, and the front portion of the glasses becomes heavy. In particular, it is not suitable for recent glasses, which are mainly reduced in weight. No matter how light the frame structure is, if the lens fitted on the rim of the front part is heavy, the weight of the frame will be spoiled.

また、偏光膜をプラスチックレンズ(樹脂レンズ)にて挟み込んだ偏光レンズも知られている。ガラスレンズに比較してプラスチックレンズ(樹脂レンズ)を採用するならば、その重量は軽くなるが、偏光レンズの剛性が低下してしまう。従って、該偏光レンズをリムに嵌める場合、リムの形状並びに寸法との違いによって内部歪みを発生し、そのことで偏光能力が低下する。   A polarizing lens in which a polarizing film is sandwiched between plastic lenses (resin lenses) is also known. If a plastic lens (resin lens) is adopted as compared with a glass lens, its weight is reduced, but the rigidity of the polarizing lens is lowered. Therefore, when the polarizing lens is fitted to the rim, an internal distortion is generated due to the difference in shape and size of the rim, thereby reducing the polarizing ability.

特表2011−501235号に係る「偏光レンズ及び偏光レンズの製造方法」は、偏光したポリビニルアルコール(PVA)フイルムと、前記PVAフイルムの1面上の第1エポキシの層と、前記PVAフイルムの他面上の第2エポキシの層とを有し、組み合わされたPVAフイルムとエポキシ層の加熱による割れ、ひび又は光学的変形を実質的に有さない偏光レンズである。   The “polarizing lens and manufacturing method of the polarizing lens” according to JP-T-2011-501235 include a polarized polyvinyl alcohol (PVA) film, a first epoxy layer on one surface of the PVA film, and the PVA film. A polarizing lens having a second epoxy layer on the surface and substantially free of cracks, cracks or optical deformations due to heating of the combined PVA film and epoxy layer.

特開2005−121697号に係る「偏光機能及び電磁波防止機能を備えたメガネレンズ」は、偏光基体の両面にトリアセテートフイルムを貼り合わせた偏光レンズであって、電磁波を防止することも出来るように、ポリエステル等の繊維織物の表面に金属を付着し、そして銅メッキ、黒色メッキを行った導電性メッシュを偏光基体に重ね合わせてトリアセテートフイルムにてラミネートした構造としている。   The “glasses lens having a polarization function and an electromagnetic wave prevention function” according to Japanese Patent Application Laid-Open No. 2005-121697 is a polarization lens in which a triacetate film is bonded to both surfaces of a polarization substrate so that electromagnetic waves can be prevented. The structure is such that a metal is adhered to the surface of a fiber fabric such as polyester, and a conductive mesh subjected to copper plating and black plating is superimposed on a polarizing substrate and laminated with a triacetate film.

このように、偏光レンズに関する技術は色々知られているが、その重量が軽くて薄いものは存在していない。偏光レンズは偏光膜を両面側から挟み込むサンドイッチ構造と成る為に、必然的に重量が重くなってしまい、太陽光の反射によって水面や路面、又は屋根瓦等がギラ付くことはなく、太陽光の強い夏場には眩しくないレンズであるが、メガネが重く成ったり、偏光レンズが厚くなる点が敬遠されてしまう。
特表2011−501235号に係る「偏光レンズ及び偏光レンズの製造方法」 特開2005−121697号に係る「偏光機能及び電磁波防止機能を備えたメガネレンズ」
As described above, various techniques relating to the polarizing lens are known, but there is no light weight and a thin one. Since the polarizing lens has a sandwich structure in which the polarizing film is sandwiched from both sides, the weight is inevitably increased. Although it is a lens that is not dazzling in the strong summer, it is shunned that the glasses are heavy and the polarizing lenses are thick.
“Polarized lens and method of manufacturing polarized lens” according to Japanese Translation of PCT International Publication No. 2011-501235 “Glasses Lens with Polarization Function and Electromagnetic Wave Prevention Function” according to JP-A-2005-121697

このように、従来の偏光レンズには上記のごとき問題がある。本考案が解決しようとする課題はこの問題点であって、軽くてしかも厚さが薄くて使い易い偏光レンズを提供する。   Thus, the conventional polarizing lens has the above-described problems. The problem to be solved by the present invention is this problem, and provides a polarizing lens that is light and thin and easy to use.

本考案に係る偏光レンズは偏光膜を間にしてその両面を透明又は半透明な層で挟み込んで構成し、基本的な構造は従来の偏光レンズと共通している。しかし、本考案の偏光レンズは表面側又は裏面側の何れか一方にガラスレンズを積層し、反対面側には樹脂レンズを積層している。ここで、ガラスレンズの厚さは特に限定しないが、一般的には従来と同じでもよい。それに対して反対面側の樹脂レンズは非常に薄いものが用いられる。   The polarizing lens according to the present invention is configured by sandwiching a polarizing film between both sides with a transparent or translucent layer, and the basic structure is common to the conventional polarizing lens. However, in the polarizing lens of the present invention, a glass lens is laminated on either the front surface side or the back surface side, and a resin lens is laminated on the opposite surface side. Here, the thickness of the glass lens is not particularly limited, but may generally be the same as the conventional one. On the other hand, a very thin resin lens on the opposite side is used.

そして、ガラスレンズには偏光膜が貼着されるが、樹脂レンズは偏光膜に貼着したり、又は溶融樹脂を流し込んで成形することも出来る。すなわち、偏光膜を貼着したガラスレンズに対して、薄い樹脂レンズを接着剤にて貼着したり、偏光膜に溶融樹脂を垂らすと共に該樹脂に接着しないモールドを当てがって後で剥がすことで樹脂レンズが成形される。   And although a polarizing film is affixed on a glass lens, a resin lens can also be affixed on a polarizing film, or can be shape | molded by pouring molten resin. That is, a thin resin lens is attached to the glass lens with the polarizing film attached thereto, or a molten resin is hung on the polarizing film and a mold that does not adhere to the resin is applied and then peeled off. A resin lens is molded.

樹脂レンズは偏光膜と互いに結合性を有す材質とされる。そして、本考案の偏光レンズは度付き偏光レンズとしたり、度なし偏光レンズとする場合もあるが、度付き偏光レンズとして構成する場合には、上記ガラスレンズに適度な度が付けられる。また、ガラスレンズとして調光機能を備えた調光レンズを使用する場合もある。   The resin lens is made of a material having bonding properties with the polarizing film. The polarized lens of the present invention may be a polarized lens with a degree or a polarized lens without a degree, but when configured as a polarized lens with a degree, an appropriate degree is given to the glass lens. Moreover, the light control lens provided with the light control function may be used as a glass lens.

本考案の偏光レンズは偏光膜をガラスレンズと樹脂レンズとで挟み込んだ積層構造としているが、上記樹脂レンズはガラスレンズに比べて比重は小さく、しかもその厚さを薄くしている。したがって、偏光膜を表面側ガラスレンズと裏面側ガラスレンズとで挟み込んで積層した従来の偏光レンズに比較してその重量は非常に軽く成る。   The polarizing lens of the present invention has a laminated structure in which a polarizing film is sandwiched between a glass lens and a resin lens. The resin lens has a specific gravity smaller than that of the glass lens, and the thickness thereof is reduced. Therefore, the weight is very light compared to a conventional polarizing lens in which a polarizing film is sandwiched between a front glass lens and a back glass lens.

また、偏光レンズの厚さも非常に薄く成り、普通のレンズと変わらず、近年の軽くてスリムなメガネフレームのリムに嵌めた場合に調和する。すなわち、従来のような重くて厚さが大きな偏光レンズでは、細い線材で構成した近年のメガネフレームとは調和出来ないが、重量が軽くて厚さが薄く成ることで本考案の偏光レンズはフレームを選ぶことなく採用することが出来る。   In addition, the thickness of the polarizing lens is very thin, which is the same as that of an ordinary lens, and is compatible with the case where the polarizing lens is fitted on a rim of a light and slim glasses frame in recent years. In other words, the conventional heavy and thick polarizing lens cannot be harmonized with the recent glasses frame made of thin wire, but the light weight and thin thickness make the polarizing lens of the present invention a frame. You can adopt without choosing.

一方、偏光レンズをリムに嵌める場合、応力等による歪を発生するが、勿論、この歪はレンズ成形時に残存する内部応力によっても生じるが、レンズの形状がリム形状が一致しない場合やレンズカーブとフレームの溝カーブが合わない場合に多く発生する。本考案では一方側をガラスレンズとすることで偏光レンズの剛性を高めてリムに嵌めた場合の歪みを抑え、また反対側の樹脂レンズが薄いことで成形時の残留応力を極力抑えることが出来る。   On the other hand, when a polarizing lens is fitted to a rim, distortion due to stress or the like is generated.Of course, this distortion is also caused by internal stress remaining at the time of lens molding, but when the shape of the lens does not match the rim shape or the lens curve This often occurs when the groove curve of the frame does not match. In the present invention, the glass lens on one side increases the rigidity of the polarizing lens to suppress distortion when fitted on the rim, and the resin lens on the opposite side is thin, so that residual stress during molding can be suppressed as much as possible. .

本考案に係る偏光レンズを示す断面図。Sectional drawing which shows the polarizing lens which concerns on this invention. 本考案の偏光レンズの展開図。The development view of the polarizing lens of the present invention. 従来の偏光レンズを示す断面図。Sectional drawing which shows the conventional polarizing lens.

図1は本考案の偏光レンズの断面を示している実施例である。図2は該偏光レンズの展開図を表している。同図の1は偏光膜、2はガラスレンズ、3は樹脂レンズをそれぞれ示している。同図に示す本考案の偏光レンズは偏光膜1の両面をガラスレンズ2と樹脂レンズ3とで挟み込んだ積層構造としているが、ガラスレンズ2は正面側に、樹脂レンズ3は裏面側に設けている。また、樹脂レンズを正面側に配置し、ガラスレンズを裏面側に配置する積層構造とすることも出来る。   FIG. 1 is an embodiment showing a cross section of a polarizing lens of the present invention. FIG. 2 is a development view of the polarizing lens. In the figure, 1 is a polarizing film, 2 is a glass lens, and 3 is a resin lens. The polarizing lens of the present invention shown in the figure has a laminated structure in which both surfaces of a polarizing film 1 are sandwiched between a glass lens 2 and a resin lens 3, and the glass lens 2 is provided on the front side and the resin lens 3 is provided on the back side. Yes. Moreover, it can also be set as the laminated structure which arrange | positions a resin lens on the front side and arrange | positions a glass lens on the back side.

ここで、偏光膜1は上記ガラスレンズ2に貼着され、また該偏光膜1には樹脂レンズ3を貼着したり、又は溶融樹脂を偏光膜1に垂らし、該樹脂に固着しないモールドを当てがった後で該モールドを剥がすことで樹脂レンズ3を成形することが出来る。従って、偏光膜1の裏面側に樹脂レンズ3が積層された偏光レンズとなる。ここで、上記偏光膜1の両面には必要に応じて接着剤を前以て塗布する場合もある。   Here, the polarizing film 1 is attached to the glass lens 2, and a resin lens 3 is attached to the polarizing film 1, or a molten resin is dropped on the polarizing film 1 and a mold that does not adhere to the resin is applied. The resin lens 3 can be molded by peeling off the mold after craving. Therefore, a polarizing lens in which the resin lens 3 is laminated on the back surface side of the polarizing film 1 is obtained. Here, an adhesive may be applied in advance to both surfaces of the polarizing film 1 as necessary.

本考案の偏光レンズの製造には、(1)ガラスレンズに接着剤を介して偏光膜を貼着し、この偏光膜に溶融樹脂を流し樹脂レンズを成形する場合がある。
この場合は、上記偏光膜に溶融樹脂を垂らしてモールドを載せ、そして所定の温度で乾燥した後で該モールドが剥がされ、上記溶融樹脂が薄い樹脂レンズとなる。
また、(2)ガラスレンズに接着剤を介して偏光膜を貼着し、この偏光膜に接着剤を介して樹脂レンズを貼着する場合がある。
In the production of the polarizing lens of the present invention, (1) a polarizing film may be attached to a glass lens via an adhesive, and a molten resin is poured into the polarizing film to form a resin lens.
In this case, the molten resin is dropped on the polarizing film, the mold is placed, and after drying at a predetermined temperature, the mold is peeled off, and the molten resin becomes a thin resin lens.
In addition, (2) a polarizing film may be attached to a glass lens via an adhesive, and a resin lens may be attached to the polarizing film via an adhesive.

偏光膜1とは光学的異方性を有す透明フイルムであって、例えば、ポリビニルアルコール(PVA)にヨウ素や染料を染色・吸着させ、そして、延伸・配向させ、ある振動方向の偏光のみを通過させるという偏光性能を持たせたフイルムである。ただし、本考案ではこの偏光膜1の具体的な種類や構造は限定しないことにする。   The polarizing film 1 is a transparent film having optical anisotropy. For example, iodine or a dye is dyed and adsorbed on polyvinyl alcohol (PVA), stretched and oriented, and only polarized light in a certain vibration direction is obtained. It is a film that has polarization performance to allow it to pass through. However, in the present invention, the specific type and structure of the polarizing film 1 are not limited.

ところで、本考案の偏光レンズはその重量を軽くすると共に厚さを薄くしている。図2には偏光レンズの展開図を示しているが、表面側のガラスレンズ2は一般的なメガネレンズの厚さとし、裏面側の樹脂レンズ3の厚さを0.05mm〜0.50mmとしている。したがって、本考案の偏光レンズでは、偏光膜1及び裏面側の樹脂レンズ3の厚さは無視され、その実質的厚さは一般的なメガネレンズと大きな違いはない。   By the way, the polarizing lens of the present invention is reduced in weight and thickness. FIG. 2 shows a development view of the polarizing lens. The glass lens 2 on the front surface side has a thickness of a general spectacle lens, and the thickness of the resin lens 3 on the back surface side is 0.05 mm to 0.50 mm. . Therefore, in the polarizing lens of the present invention, the thickness of the polarizing film 1 and the resin lens 3 on the back surface side is ignored, and the substantial thickness is not significantly different from that of a general spectacle lens.

したがって、細い線材で構成している近年のメガネフレームを対象として本考案の偏光レンズを違和感なく嵌めることが出来る。勿論、その重量も軽くて軽いメガネとなる。   Therefore, it is possible to fit the polarizing lens of the present invention without a sense of incongruity for a recent spectacle frame composed of thin wires. Of course, the glasses are light and light.

一方、上記ガラスレンズ2として、調光レンズを使用することも出来る。調光レンズとは周囲の紫外線量によって自らが濃度を変えて光の量を調整することが出来る機能を備えたレンズであり、レンズ素材にハロゲン化銀を混ぜ、紫外線によるハロゲンと銀の可逆的結合で着色・退色することが出来る。該調光レンズをガラスレンズ2の代わりに使用することで、偏光機能と調光機能を備えたレンズとなる。   On the other hand, a light control lens can be used as the glass lens 2. A dimming lens is a lens that has the function of adjusting the amount of light by changing the concentration according to the amount of ambient UV light. The lens material is mixed with silver halide, and the reversibility of halogen and silver by UV light. Can be colored or faded by bonding. By using the light control lens instead of the glass lens 2, a lens having a polarization function and a light control function is obtained.

1 偏光膜
2 ガラスレンズ
3 樹脂レンズ



1 Polarizing film 2 Glass lens 3 Resin lens



Claims (4)

偏光膜を間に挟み込んだ偏光レンズにおいて、片面側にはガラスレンズを、そして反対面側には樹脂レンズを設けた積層構造とし、上記樹脂レンズの厚さを0.50mm以下としたことを特徴とする偏光レンズ。 A polarizing lens having a polarizing film sandwiched between, a laminated structure in which a glass lens is provided on one side and a resin lens is provided on the opposite side, and the thickness of the resin lens is 0.50 mm or less. Polarized lens. 上記ガラスレンズを一般的なメガネレンズの厚さとした請求項1記載の偏光レンズ。 The polarizing lens according to claim 1, wherein the glass lens has a thickness of a general spectacle lens. 偏光膜を貼着したガラスレンズに溶融樹脂を垂らし、該樹脂と固着しないモールドを当てがって後で剥がすことで、上記樹脂レンズを成形した請求項1、又は請求項2記載の偏光レンズ。 The polarizing lens according to claim 1, wherein the resin lens is molded by hanging a molten resin on a glass lens having a polarizing film attached thereto, applying a mold that does not adhere to the resin, and then peeling it off. 上記ガラスレンズに代わって、調光機能を備えた調光レンズを用いた請求項1、請求項2、又は請求項3記載の偏光レンズ。








4. A polarizing lens according to claim 1, wherein a dimming lens having a dimming function is used in place of the glass lens.








JP2015002436U 2015-05-19 2015-05-19 Polarized lens Expired - Lifetime JP3198950U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021500607A (en) * 2017-10-19 2021-01-07 エシロール・アンテルナシオナル Optical lens

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021500607A (en) * 2017-10-19 2021-01-07 エシロール・アンテルナシオナル Optical lens
US11598978B2 (en) 2017-10-19 2023-03-07 Essilor International Optical lens

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