JPH07275289A - Shading filter - Google Patents
Shading filterInfo
- Publication number
- JPH07275289A JPH07275289A JP7340594A JP7340594A JPH07275289A JP H07275289 A JPH07275289 A JP H07275289A JP 7340594 A JP7340594 A JP 7340594A JP 7340594 A JP7340594 A JP 7340594A JP H07275289 A JPH07275289 A JP H07275289A
- Authority
- JP
- Japan
- Prior art keywords
- light
- layer
- ultraviolet
- shielding
- visible light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Optical Filters (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ガス溶接溶断、電気溶
接あるいは炉前作業等において放射される有害な紫外
線、赤外線を遮光するために作業者が装着する溶接用遮
光面、遮光めがね等に用いられる遮光用フィルターに関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a light-shielding surface for welding, light-shielding glasses, etc. worn by an operator in order to shield harmful ultraviolet rays and infrared rays radiated in gas welding fusing, electric welding or furnace pre-work. The present invention relates to a light shielding filter used.
【０００２】[0002]
【従来の技術】ガス溶接溶断、電気溶接あるいは炉前作
業において、作業中に放射される有害光線、すなわち、
アーク等から放射される紫外線、炉や高温の熱作業から
放射される赤外線や強烈な可視光線（ブルーライト）
は、いずれも作業者の目に有害であるため、作業者はこ
れらを遮光するために、例えば、図４に示すような溶接
用遮光面（図４（ａ））や遮光めがね（図４（ｂ））を
装着する。図４において、１が有害光線を遮光する遮光
用フィルターである。遮光めがねでは、レンズ自体が遮
光用フィルターとなっているもの、あるいはレンズに重
ね合わせて取りつけられているものがある。溶接用遮光
面では、一般に覗き窓部に遮光フィルター１が装着され
る。図４（ａ）に示す遮光用フィルター１は、濃度の濃
いフィルター１ａと濃度の薄いフィルター１ｂとが組み
合わされてなるもので、濃いフィルター１ａ部分は、必
要に応じて薄いフィルター１ｂと重ねあわしたり、はず
したりすることができるようになっている。2. Description of the Related Art In gas welding, electric welding, or furnace work, harmful rays emitted during the work, that is,
Ultraviolet rays emitted from arcs, infrared rays emitted from furnaces and high-temperature heat work, and intense visible light (blue light)
Are harmful to the eyes of the worker, and the worker shields them from light by, for example, a welding light-shielding surface (FIG. 4A) and light-shielding glasses (see FIG. 4 ( b)) is attached. In FIG. 4, reference numeral 1 is a light-shielding filter that shields harmful rays. As for the light-shielding glasses, there are those in which the lens itself serves as a light-shielding filter, or those in which the lens is mounted on the lens. On the light-shielding surface for welding, the light-shielding filter 1 is generally attached to the viewing window. The light-shielding filter 1 shown in FIG. 4 (a) is a combination of a high-density filter 1a and a low-density filter 1b. The dark filter 1a portion may be overlapped with the thin filter 1b as necessary. , Can be removed.
【０００３】従来、遮光用フィルターとしては、透明ガ
ラスや透明プラスチックにベンゾフェノン等の紫外線吸
収剤、赤外線吸収剤、可視光線を吸収する有機色素や無
機化合物を含有させた色ガラスがあるが、多量の有害光
線を吸収させるためには、多種多量の有機あるいは無機
化合物を含有させる必要がある。かかる場合、相当濃度
の濃い不透明なフィルタを使用することになり、有害で
ない可視光線も必要以上に吸収されるため、溶接してい
ないとき、すなわち強烈な光が放射されていない条件下
ではフィルター１を介しては見えなくなる。Conventionally, as a light-shielding filter, there is a transparent glass or a transparent plastic containing an ultraviolet absorber such as benzophenone, an infrared absorber, a colored glass containing an organic dye or an inorganic compound which absorbs visible light. In order to absorb harmful rays, it is necessary to contain a large amount of various kinds of organic or inorganic compounds. In such a case, an opaque filter with a considerable concentration is used, and visible light which is not harmful is absorbed more than necessary. Therefore, the filter 1 is not welded, that is, under the condition that intense light is not emitted. Disappear through.
【０００４】このため、作業者は、溶接作業中には溶接
用遮光面を装着するが、溶接作業をしていないとき、例
えば溶接部のセットや点火時においては、遮光面をはず
したり、視界からずらしたり、あるいは図４（ａ）のよ
うな遮光面では濃い遮光フィルター１ｂを薄い遮光フィ
ルター１ａから離脱させる必要があった。For this reason, the worker wears the light-shielding surface for welding during the welding work. However, when the welding work is not performed, for example, when the welding part is set or when the ignition is performed, the light-shielding surface is removed or the field of view is removed. It is necessary to displace the light shielding filter 1b from the thin light shielding filter 1a or to disengage the dark light shielding filter 1b from the light shielding surface as shown in FIG.
【０００５】[0005]
【発明が解決しようとする課題】しかし、遮光面の取り
外し等は面倒であり、かかる動作により作業性が悪くな
る他、迅速にかかる動作を行うには相当の熟練を要する
という問題がある。また、遮光面や遮光めがねの装着の
遅れにより、有害光線を受ける危険もある。特に、仮付
け溶接のように溶接作業間の周期が短い場合、高所又は
作業スペースの狭い所で溶接する場合、あるいは溶接作
業自体に両手を要する場合に問題となる。さらに、作業
者が直接溶接作業をしていないときでも周辺で別の作業
者が溶接作業をしている場合には、周辺からの有害光線
を受けることがある。However, the removal of the light-shielding surface is troublesome, and the workability is deteriorated by such an operation, and a considerable skill is required to perform the operation quickly. Moreover, there is a risk of receiving harmful rays due to the delay in mounting the light-shielding surface or the light-shielding glasses. In particular, this is a problem when the cycle between welding operations is short, such as tack welding, when welding is performed in a high place or in a place where the work space is narrow, or when the welding operation itself requires both hands. Further, even when the worker is not directly performing the welding work, when another worker is performing the welding work in the periphery, the harmful light rays from the periphery may be received.
【０００６】このような問題を解決するために、フィル
ター自体を液晶で構成し、これに光センサを取りつけ
た、センサ付遮光フィルターの開発が進んでいる。この
センサ付遮光フィルターは、センサが光を感知して、瞬
時に自動的に光の強さ及び量に応じて、フィルターの濃
度を変えることができる。しかし、一般にセンサ付遮光
フィルターは高価で、定期的にメインテナンスが必要と
なる上、構造的にも重くなり、形状的にも制限を受け
る。In order to solve such a problem, development of a sensor-equipped light-shielding filter in which the filter itself is made of liquid crystal and an optical sensor is attached to the filter is being developed. In this sensor-equipped light-shielding filter, the sensor detects light, and the density of the filter can be instantly and automatically changed according to the intensity and amount of light. However, a light-shielding filter with a sensor is generally expensive, requires regular maintenance, is structurally heavy, and is limited in shape.
【０００７】本発明はこのような事情に鑑みてなされた
ものであり、その目的とするところは、溶接作業前中後
を通じて遮光面あるいは遮光フィルター自体を装脱着す
る必要がなく、しかも安価で軽量な遮光面を形成できる
遮光フィルターを提供することにある。The present invention has been made in view of such circumstances, and it is an object of the present invention that it is not necessary to attach and detach the light shielding surface or the light shielding filter itself through before and after the welding operation, and it is cheap and lightweight. Another object of the present invention is to provide a light-shielding filter that can form a light-shielding surface.
【０００８】[0008]
【課題を解決するための手段】請求項１に記載の遮光フ
ィルターは、基板の平面方向に、可視光線透過率が０．
１６％以上で且つ赤外線及び紫外線を遮断吸収するＡ部
と、可視光線透過率が０．１６％未満で且つ赤外線及び
紫外線を遮断吸収するＢ部とが設けられていることを特
徴とする。The light-shielding filter according to claim 1 has a visible light transmittance of 0.
It is characterized in that it is provided with a part A that is 16% or more and blocks and absorbs infrared rays and ultraviolet rays, and a part B that has a visible light transmittance of less than 0.16% and that blocks and absorbs infrared rays and ultraviolet rays.
【０００９】請求項２に記載の遮光フィルターは、Ａ部
が、赤外線遮断層及び紫外線吸収層を有し、Ｂ部が、可
視光線透過率調整層、赤外線遮断層、及び紫外線吸収層
を有していることを特徴とする。請求項３に記載の遮光
フィルターは、前記赤外線遮断層には、可視光線反射防
止層が一体的に設けられていることを特徴とする。In the light-shielding filter according to the second aspect, the part A has an infrared ray blocking layer and an ultraviolet ray absorbing layer, and the part B has a visible light transmittance adjusting layer, an infrared ray blocking layer, and an ultraviolet ray absorbing layer. It is characterized by A light-shielding filter according to a third aspect of the invention is characterized in that the infrared ray blocking layer is integrally provided with a visible light antireflection layer.
【００１０】請求項４に記載の遮光フィルターは、前記
可視光線透過率調整層が、アルミニウム蒸着膜であるこ
とを特徴とする。請求項５に記載の遮光フィルターは、
前記赤外線遮断層が、金の蒸着膜であることを特徴とす
る。請求項６に記載の遮光フィルターは、前記紫外線吸
収層が、紫外線吸収剤を含有したプラスチックフィルム
であることを特徴とする。According to a fourth aspect of the present invention, in the light-shielding filter, the visible light transmittance adjusting layer is an aluminum vapor deposition film. The light shielding filter according to claim 5,
The infrared blocking layer is a gold deposition film. According to a sixth aspect of the present invention, in the light-shielding filter, the ultraviolet absorbing layer is a plastic film containing an ultraviolet absorber.
【００１１】請求項７に記載の遮光フィルターは、前記
紫外線吸収層が、支持体に、紫外線吸収剤を含有した接
着剤で構成される紫外線吸収接着剤部を設けてなるもの
であることを特徴とする。According to a seventh aspect of the present invention, in the light-shielding filter according to the seventh aspect, the ultraviolet absorbing layer has a support provided with an ultraviolet absorbing adhesive portion made of an adhesive containing an ultraviolet absorbing agent. And
【００１２】[0012]
【作用】本発明の遮光フィルターは、平面方向に、可視
光線透過率が異なるＡ部及びＢ部が設けられており、可
視光線透過率が高いＡ部では、強烈な光が放射されてい
ないときでもフィルターを介して外側を見ることができ
る。一方、Ａ部及びＢ部いずれにも赤外線遮断層及び紫
外線吸収層が設けられているので、遮光フィルターによ
り赤外線及び紫外線は遮断吸収される。The light-shielding filter of the present invention is provided with the portions A and B having different visible ray transmittances in the plane direction, and when the portion A having a high visible ray transmittance does not emit intense light. But you can see the outside through the filter. On the other hand, since the infrared ray blocking layer and the ultraviolet ray absorbing layer are provided in both the A section and the B section, the infrared ray and the ultraviolet ray are blocked and absorbed by the light blocking filter.
【００１３】従って、溶接作業中、すなわち強烈な光は
放射されている条件下では可視光線透過率が低いＢ部に
視線をおき、溶接作業をしないとき、すなわち強烈な光
が放射されていない条件下では、可視光線透過率が高い
Ａ部に視線をおけば、溶接作業前中後を通じて、遮光フ
ィルターの位置を視界からずらす必要はない。よって、
本発明の遮光フィルターが装着された溶接用遮光面又は
遮光めがねを用いれば、溶接用遮光面等を作業者自身に
取付け固定しておいたまま、溶接部位の確認、セット、
溶接作業等を行うことができる。Therefore, during the welding operation, that is, under the condition that the intense light is emitted, the line of sight is placed on the portion B where the visible light transmittance is low, and when the welding operation is not performed, that is, the condition that the intense light is not emitted. Below, if the line of sight is placed on the portion A where the visible light transmittance is high, it is not necessary to shift the position of the light shielding filter from the field of view before, during and after the welding operation. Therefore,
If a light-shielding surface for welding or light-shielding glasses equipped with the light-shielding filter of the present invention is used, the welding light-shielding surface or the like is attached and fixed to the operator himself, and the welding site is confirmed and set,
Welding work can be performed.
【００１４】[0014]
【実施例】以下、本発明の実施例について、図面に基づ
いて説明する。図１は、本発明一実施例にかかる遮光フ
ィルターの構成を示す表面図（ａ）及び断面図（ｂ）で
ある。すなわち、本実施例にかかる遮光フィルター１０
は、基板１１の平面方向に、可視光線透過率が０．１６
％以上（ＪＩＳ Ｔ８１４１に基づく遮光度番号８未
満）、好ましくは３．２％以上（遮光度５未満）で、且
つ赤外線及び紫外線の遮光度９程度（近赤外線透過率
０．２０％以下、中赤外線透過率０．３９％以下、紫外
線透過率（３１５ｎｍ）０．０００３％以下、紫外線透
過率（３６５ｎｍ）０．００４５％以下）のＡ部と、可
視光線透過率が０．１６％未満（遮光度番号８以上）、
好ましくは可視光線、赤外線及び紫外線の遮光度９以上
（可視光線透過率０．０６１％以下、近赤外線透過率
０．２０％以下、中赤外線透過率０．３９％以下、紫外
線透過率（３１５ｎｍ）０．０００３％以下、紫外線透
過率（３６５ｎｍ）０．００４５％以下）のＢ部とが設
けられている。Ａ部とＢ部とが設けられている位置関
係、Ａ部及びＢ部の占有割合等は特に限定しないが、図
１（ａ）に示すように、Ｂ部が下方２／３程度（Ｌ1 ：
Ｌ2 ＝１：２）以上を占有するように設けられることが
好ましい。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view (a) and a cross-sectional view (b) showing a configuration of a light blocking filter according to an embodiment of the present invention. That is, the light blocking filter 10 according to the present embodiment
Has a visible light transmittance of 0.16 in the plane direction of the substrate 11.
% Or more (shading degree number less than 8 based on JIS T8141), preferably 3.2% or more (shading degree less than 5) and about 9 degrees of infrared and ultraviolet rays (near infrared transmittance 0.20% or less, medium) Infrared transmittance 0.39% or less, ultraviolet transmittance (315 nm) 0.0003% or less, ultraviolet transmittance (365 nm) 0.0045% or less), and visible light transmittance less than 0.16% (shading) Degree number 8 or higher),
Preferably, the light-shielding degree of visible light, infrared rays and ultraviolet rays is 9 or more (visible ray transmittance 0.061% or less, near infrared ray transmittance 0.20% or less, mid infrared ray transmittance 0.39% or less, ultraviolet ray transmittance (315 nm). B part of 0.0003% or less and ultraviolet transmittance (365 nm) 0.0045% or less) is provided. Positional relationship where A and B regions are provided, occupancy, etc. A portion and B portion is not particularly limited, as shown in FIG. 1 (a), part B is about lower 2/3 (L 1 :
It is preferably provided so as to occupy L 2 = 1: 2) or more.
【００１５】Ｂ部は、基板１１上に可視光線透過率調整
層１２、赤外線遮断層１３及び紫外線吸収層１４が積層
されて構成され、Ａ部は、基板１１上に赤外線遮光層１
３及び紫外線吸収層１４が積層されて構成されている。
基板１１としては、透明ガラス又は遮光度３未満のガラ
ス（以下、これを「遮光ガラス」という）が用いられ
る。遮光ガラスの方が、透明ガラスよりも光線透過率が
低く、基板１１に積層される赤外線遮断層１２、可視光
線透過率調整層１１の厚みを薄くできること、赤外線遮
断層１２が蒸着膜の場合、蒸着精度の要求が緩和され、
遮光用フィルターの低価格化を図る点から好ましい。基
板１１の厚み（ｔ1 ）は、一般に、０．５〜３．５ｍｍ
程度である。The portion B is constructed by laminating the visible light transmittance adjusting layer 12, the infrared ray blocking layer 13 and the ultraviolet ray absorbing layer 14 on the substrate 11, and the portion A is the infrared ray shielding layer 1 on the substrate 11.
3 and the ultraviolet absorbing layer 14 are laminated.
As the substrate 11, transparent glass or glass having a light blocking degree of less than 3 (hereinafter, referred to as “light blocking glass”) is used. The light-shielding glass has a lower light transmittance than the transparent glass, and the infrared blocking layer 12 and the visible light transmittance adjusting layer 11 laminated on the substrate 11 can be thinned. When the infrared blocking layer 12 is a vapor deposition film, The requirements for deposition accuracy have been eased,
It is preferable from the viewpoint of reducing the cost of the light shielding filter. The thickness (t 1 ) of the substrate 11 is generally 0.5 to 3.5 mm.
It is a degree.
【００１６】可視光線透過率調整層１２は可視光線の透
過率を調整する層で、Ａｌ、Ａｇ、Ｃｒ、Ａｕ、Ｃｕ等
の金属の蒸着膜で形成されることが好ましい。可視光線
透過率調整層１２における可視光線の透過率は遮光面が
用いられる溶接環境に応じて適宜選択され、可視光線の
透過率は蒸着膜の厚み（ｔ2 ）を変えることにより、適
宜変えることができる。尚、赤外線遮断層１３、紫外線
吸収層１４においても、ある程度の可視光線は遮断吸収
されるので、可視光線透過率調整層１２の厚みは、この
ことを加味して選択する必要がある。The visible light transmittance adjusting layer 12 is a layer for adjusting the visible light transmittance, and is preferably formed of a vapor deposition film of a metal such as Al, Ag, Cr, Au or Cu. The visible light transmittance in the visible light transmittance adjusting layer 12 is appropriately selected according to the welding environment in which the light shielding surface is used, and the visible light transmittance is appropriately changed by changing the thickness (t 2 ) of the vapor deposition film. You can Since the infrared ray blocking layer 13 and the ultraviolet absorbing layer 14 also block and absorb visible light to some extent, it is necessary to select the thickness of the visible light transmittance adjusting layer 12 in consideration of this fact.
【００１７】赤外線遮断膜１３は、赤外線の遮断を目的
として設けられた、例えば、Ａｕ、又はＡｕと反射率、
透過率の波長依存性が類似しているＣｕの蒸着膜で構成
される。蒸着膜の厚み（ｔ3 ）は、赤外線の遮断率に応
じて適宜選択される。紫外線吸収層１４としては、入手
及び価格の観点から、紫外線吸収剤（例えば、ベンゾフ
ェノン、ベンゾトリアゾールなど）が含有された紫外線
吸収能力を有するプラスチックフィルムを用いることが
好ましい。紫外線吸収層１４を構成するフィルムは、粘
着剤により、赤外線遮断膜１３に積層接着されている。
紫外線吸収層１４の厚み（ｔ4 ）は、使用するプラスチ
ックフィルムの種類、要求される紫外線遮断率の程度に
応じて適宜選択される。The infrared ray blocking film 13 is provided for the purpose of blocking infrared rays. For example, Au or Au and reflectance,
It is composed of a vapor deposition film of Cu having similar wavelength dependence of transmittance. The thickness (t 3 ) of the vapor deposition film is appropriately selected according to the infrared ray blocking rate. From the viewpoint of availability and cost, it is preferable to use a plastic film having an ultraviolet absorbing ability, which contains an ultraviolet absorbing agent (for example, benzophenone, benzotriazole, etc.), as the ultraviolet absorbing layer 14. The film constituting the ultraviolet absorbing layer 14 is laminated and adhered to the infrared ray blocking film 13 with an adhesive.
The thickness (t 4 ) of the ultraviolet absorbing layer 14 is appropriately selected according to the type of plastic film used and the required degree of ultraviolet blocking rate.
【００１８】以上のような構成を有する本発明の遮光用
フィルター１０は、Ｂ部では、可視光線の透過率が０．
１６％未満（ＪＩＳ Ｔ８１４１に基づく遮光度番号８
以上）と、可視光線の透過が制限されるため見えにくく
なっている。一方、Ａ部は、Ｂ部に比べて可視光線透過
率が高いことから、溶接作業をしていないときでも、遮
光フィルターのＡ部を介して見ることができる。そし
て、Ａ部、Ｂ部のいずれにおいても、すなわちフィルタ
ー１０全面にわたって、紫外線及び赤外線に対する遮光
度９程度を保持できるように赤外線遮断層１３及び紫外
線吸収層１４が設けられているので、溶接作業中に放射
される有害光線は遮断される。従って、溶接作業を行う
ときには可視光線の透過率が低いＢ部に視線を置き、溶
接部位の確認やセット等を行うときには可視光線の透過
率が高いＡ部に視線を置き換えれば、溶接作業前中後に
わたって、遮光フィルター１０又は遮光フィルター自体
を取り外す必要がない。そして、Ａ部及びＢ部いずれに
おいても有害光線、特に赤外線及び紫外線が遮断吸収さ
れるので、これらの作業の前中後を通じて、視線の置き
換えによる目への悪影響はない。従って、作業性が向上
する上に、安全面でも向上を図ることができる。The light-shielding filter 10 of the present invention having the above structure has a visible light transmittance of 0.
Less than 16% (Shading degree number 8 based on JIS T8141
Above), it becomes difficult to see because the transmission of visible light is limited. On the other hand, since the portion A has a higher visible light transmittance than the portion B, it can be seen through the portion A of the light shielding filter even when welding work is not performed. In addition, since the infrared ray blocking layer 13 and the ultraviolet ray absorbing layer 14 are provided so as to maintain the degree of light blocking of ultraviolet rays and infrared rays of about 9 in both the parts A and B, that is, over the entire surface of the filter 10, during the welding work. The harmful rays emitted to the are blocked. Therefore, when performing the welding work, if the line of sight is placed on the B part where the visible light transmittance is low, and the line of sight is replaced on the A part where the visible light transmittance is high when confirming or setting the welding site, etc. It is not necessary to remove the shading filter 10 or the shading filter itself later. Further, since harmful rays, especially infrared rays and ultraviolet rays, are blocked and absorbed in both the A section and the B section, there is no adverse effect on the eyes due to the replacement of the line of sight throughout before and after these operations. Therefore, not only the workability is improved, but also the safety can be improved.
【００１９】尚、本発明の遮光フィルターでは、赤外線
遮断層１３と一体的に、赤外線遮断層１３による可視光
線の反射を抑制する可視光線反射防止層１５を設けるこ
とが好ましい。可視光線反射防止層１５は、例えば、Ｃ
ｅＯ2 、ＳｉＯ2 、ＴｉＯ2等の誘電体薄膜で構成され
る。図２は、赤外線遮断層１３と紫外線吸収層１４との
間に可視光線反射防止層１５を設けた本発明の他の実施
例に係る遮光フィルター２０を示している。一般に、赤
外線遮断膜１３を構成する金等の蒸着膜は、赤外線を遮
断するだけでなく、多少なりとも可視光線も反射遮断す
る。このため、遮光フィルター１０において赤外線の遮
光度を上げたい場合には、赤外線遮断層１３の厚み（ｔ
3 ）を大きくする必要があるが、ｔ3 を大きくすること
に伴い可視光線透過率が低下し、Ａ部でも見えにくくな
ってくる傾向にある。一方、赤外線遮断膜１３と可視光
線反射防止膜１５とを組み合わせた場合、赤外線遮断膜
１３単独のときよりも可視光線の反射率を低くすること
ができる。従って、遮光フィルター２０の構成によれ
ば、可視光線の透過率を低下させることなく、赤外線の
遮断率を上げることができる。In the light-shielding filter of the present invention, it is preferable to provide the visible-light antireflection layer 15 integrally with the infrared-shielding layer 13 for suppressing the reflection of visible light by the infrared-shielding layer 13. The visible light antireflection layer 15 is, for example, C
It is composed of a dielectric thin film such as eO 2 , SiO 2 , TiO 2 . FIG. 2 shows a light blocking filter 20 according to another embodiment of the present invention, in which a visible light antireflection layer 15 is provided between the infrared ray blocking layer 13 and the ultraviolet ray absorbing layer 14. In general, the vapor deposition film of gold or the like that constitutes the infrared ray blocking film 13 not only blocks infrared rays but also reflects and blocks visible rays to some extent. Therefore, when it is desired to increase the degree of blocking of infrared rays in the light blocking filter 10, the thickness of the infrared blocking layer 13 (t
It is necessary to increase 3 ), but as t 3 increases, the visible light transmittance decreases, and it tends to be difficult to see even in the A portion. On the other hand, when the infrared blocking film 13 and the visible light antireflection film 15 are combined, the reflectance of visible light can be made lower than that when the infrared blocking film 13 is used alone. Therefore, according to the configuration of the light shielding filter 20, it is possible to increase the infrared ray blocking rate without lowering the visible ray transmittance.
【００２０】また、上記実施例では、紫外線吸収層１４
として紫外線吸収フィルムを用い、これを粘着剤で接着
積層したが、本発明はこれに限定されない。例えば、遮
光ガラス又は透明ガラスを、フィルム状の紫外線吸収剤
を含有した接着剤を介して、赤外線吸収膜たる金の蒸着
膜に接着してもよい。図３に示す遮光フィルター３０で
は、紫外線吸収層１４’が、紫外線吸収剤を含有した接
着剤で構成される紫外線吸収接着剤層１４ａとこれを支
持する遮光ガラス、透明ガラス等の支持体１４ｂから構
成されている。Further, in the above embodiment, the ultraviolet absorbing layer 14
Although an ultraviolet absorbing film was used as this and was laminated with a pressure sensitive adhesive, the present invention is not limited to this. For example, light-shielding glass or transparent glass may be adhered to the vapor deposition film of gold, which is an infrared absorbing film, via an adhesive containing a film-like ultraviolet absorbing agent. In the light-shielding filter 30 shown in FIG. 3, the ultraviolet-absorbing layer 14 ′ is composed of an ultraviolet-absorbing adhesive layer 14 a composed of an adhesive containing an ultraviolet-absorbing agent and a support 14 b such as a light-shielding glass or a transparent glass supporting the same. It is configured.
【００２１】さらに、本発明の遮光フィルターのＡ部及
びＢ部において、可視光線透過率調整層１２と赤外線遮
断層１３との積層順番は逆であってもよい。次に、本発
明に係る遮光フィルターの具体的実施例として、図３に
示す遮光フィルター３０の構成を有し、Ａ部の遮光度４
でＢ部の遮光度１１の要件を満たす遮光フィルターにつ
いて説明する。Further, in the portions A and B of the light-shielding filter of the present invention, the order of laminating the visible light transmittance adjusting layer 12 and the infrared ray blocking layer 13 may be reversed. Next, as a specific example of the light-shielding filter according to the present invention, the light-shielding filter 30 shown in FIG.
A light-blocking filter that satisfies the requirement of the light-blocking degree 11 of the B section will be described.
【００２２】基板１１として、遮光度３の遮光ガラスを
用いた。可視光線透過率調整層１２を膜厚約３５０オン
グストロームのＡｌ蒸着膜で構成し、赤外線遮断層１３
を膜厚約１５０オングストロームのＡｕ蒸着膜で構成
し、可視光線反射防止層１５を膜厚約７０ｎｍのＣｅＯ
2 蒸着膜で構成し、紫外線吸収層１４’を厚み２５０μ
ｍの紫外線吸収剤が含有されたフィルム状接着剤からな
る紫外線吸収接着剤部１４ａと厚み１．５ｍｍの透明ガ
ラス１４ｂとの組合せで構成した。尚、Ａｕ蒸着膜はＡ
部及びＢ部に拘らず均一の膜厚としたが、Ｂ部における
Ａｌ蒸着膜は３５０オングストロームと薄膜であること
から、紫外線吸収接着剤部１４ａにより誤差として解消
される。As the substrate 11, light-shielding glass having a light-shielding degree of 3 was used. The visible light transmittance adjusting layer 12 is composed of an Al vapor deposition film having a film thickness of about 350 Å, and the infrared ray blocking layer 13 is formed.
Is formed of an Au vapor-deposited film having a thickness of about 150 Å, and the visible light antireflection layer 15 is made of CeO having a thickness of about 70 nm.
2 It is composed of a vapor deposition film, and the ultraviolet absorbing layer 14 'has a thickness of 250μ.
The ultraviolet absorbing adhesive portion 14a made of a film adhesive containing m ultraviolet absorbing agent and a transparent glass 14b having a thickness of 1.5 mm are combined. The Au vapor deposition film is A
Although the film thickness is uniform irrespective of the portion and the portion B, since the Al vapor deposition film in the portion B is a thin film of 350 angstrom, it is eliminated as an error by the ultraviolet absorbing adhesive portion 14a.
【００２３】このような構成を有する遮光フィルターに
おいて、基板１１から可視光線透過率調整層１２、赤外
線遮断層１３、可視光線反射防止層１５、紫外線吸収層
１４を順次積層したときの可視光線透過率、近赤外線透
過率、遠赤外線透過率、紫外線透過率（３１３ｎｍ，３
６５ｎｍ）の値を表１に示す。表１中の（）内の数値
は、該当する遮光度番号を示している。In the light-shielding filter having such a structure, the visible light transmittance when the visible light transmittance adjusting layer 12, the infrared ray blocking layer 13, the visible light antireflection layer 15, and the ultraviolet absorbing layer 14 are sequentially laminated from the substrate 11. , Near infrared transmittance, far infrared transmittance, ultraviolet transmittance (313 nm, 3
The value of (65 nm) is shown in Table 1. Numerical values in parentheses in Table 1 indicate the corresponding light-shielding degree numbers.
【００２４】[0024]
【表１】 [Table 1]
【００２５】表１からわかるように、基板に可視光線透
過率調整層を設けただけの場合、目標とする遮光度１１
よりも明るい遮光度１０となっているが、紫外線吸収層
の作用により、最終目標の遮光度１１が達成されてい
る。また、赤外線遮断層の形成により、Ａ部の可視光線
透過率は目標とする遮光度４よりも暗くなるが、可視光
線反射防止層を積層することにより遮光度４と可視光線
透過率が向上していることがわかる。一方、赤外線遮断
層及び紫外線吸収層を設けることにより、Ａ部におい
て、可視光線透過率をそれ程低下させることなく、すな
わち可視光線の遮光度４を保持しつつ、赤外線及び紫外
線の遮光度１２以上を達成している。そして、最終的
に、この遮光フィルターは、可視光線透過率に関しては
Ａ部で遮光度４、Ｂ部で遮光度１１であり、赤外線及び
紫外線に関してはＡ部及びＢ部ともに遮光度１２以上と
なっている。As can be seen from Table 1, when only the visible light transmittance adjusting layer is provided on the substrate, the target light blocking degree is 11
Although the light shielding degree is 10 which is brighter than that of the above, the final target light shielding degree 11 is achieved by the action of the ultraviolet absorbing layer. Further, the visible light transmittance of the portion A becomes darker than the target light blocking degree of 4 due to the formation of the infrared ray blocking layer, but by stacking the visible light antireflection layer, the light blocking degree of 4 and the visible light transmittance are improved. You can see that On the other hand, by providing the infrared ray blocking layer and the ultraviolet ray absorbing layer, in the part A, the infrared ray and the ultraviolet ray have a light shielding degree of 12 or more without reducing the visible light transmittance so much, that is, while maintaining the visible light shielding degree of 4. Has achieved. And finally, this light-shielding filter has a light-shielding degree of 4 in the A section and a light-shielding degree of 11 in the B section regarding the visible light transmittance, and a light-shielding degree of 12 or more in both the A section and the B section regarding infrared rays and ultraviolet rays. ing.
【００２６】以上のような構成を有する本発明の遮光フ
ィルター１０，２０，又は３０は、溶接用遮光面の覗き
窓部や遮光めがねのレンズ部分に取りつけて用いられ
る。本発明の遮光フィルターが装着される溶接用遮光面
や遮光めがねの種類は特に限定されず、遮光フィルター
は、覗き窓部やレンズ部分の形状に応じて、円形、方形
など適宜形状にして取りつけられる。The light-shielding filter 10, 20, or 30 of the present invention having the above-mentioned structure is used by being attached to the viewing window portion of the welding light-shielding surface or the lens portion of the light-shielding glasses. The type of the light-shielding surface for welding and the light-shielding glasses to which the light-shielding filter of the present invention is attached is not particularly limited, and the light-shielding filter is attached in an appropriate shape such as a circular shape or a square shape according to the shape of the viewing window or lens portion. .
【００２７】遮光フィルターの装着方向は、特に限定し
ないが、紫外線吸収層１４としてプラスチックフィルム
を用いる場合（遮光フィルター１０，２０）、プラスチ
ックフィルムは熱、具体的には赤外線に弱いので、紫外
線吸収層１４が内側となるように装着することが好まし
い。また、本発明の遮光フィルターをそのまま装着する
こともできるが、一般に、遮光面の外側、すなわち作業
部側に、透明性の防護部材（図１（ｂ）中、１６で示
す）を重ね合わせた状態で装着することが好ましい。防
護部材は、溶接作業の際に飛散する溶融金属等から遮光
フィルターを防護するものである。溶接作業中に溶融金
属等が飛散して、これが遮光フィルターに付着した場
合、作業者の視界を害するばかりか、付着した金属は除
去しにくく、無理に除去すると遮光フィルターを傷める
原因となるからである。防護部材を外側に重ねておくこ
とにより、飛散した溶融金属は防護部材に付着するの
で、防護部材を取り替えるだけでよい。なお、防護部材
としては、遮光フィルターの可視光線透過率に影響を与
えず、且つある程度強度を有するもので、透明のガラ
ス、又は透明プラスチック（例えば、ポリカーボネー
ト）表面に傷防止のための硬化処理を施したものが用い
られる。The mounting direction of the light-shielding filter is not particularly limited, but when a plastic film is used as the ultraviolet-absorbing layer 14 (light-shielding filters 10 and 20), the plastic film is vulnerable to heat, specifically infrared rays. It is preferable to mount it so that 14 is inside. Although the light-shielding filter of the present invention can be mounted as it is, generally, a transparent protective member (indicated by 16 in FIG. 1 (b)) is superposed on the outside of the light-shielding surface, that is, the working portion side. It is preferable to mount it in the state. The protective member protects the light-shielding filter from molten metal or the like scattered during welding work. If molten metal or the like is scattered during welding work and adheres to the light shielding filter, it not only impairs the sight of the worker, but it is difficult to remove the adhered metal, and forcibly removing it may cause damage to the light shielding filter. is there. Since the scattered molten metal adheres to the protective member by stacking the protective member on the outer side, it is only necessary to replace the protective member. The protective member does not affect the visible light transmittance of the light-shielding filter and has a certain level of strength, and a transparent glass or transparent plastic (for example, polycarbonate) surface should be hardened to prevent scratches. What has been given is used.
【００２８】[0028]
【発明の効果】本発明の遮光フィルターは、平面方向に
可視光線透過率が異なるが有害光線は遮断吸収できるＡ
部及びＢ部が設けられているので、溶接作業中、すなわ
ち強烈な光は放射されている条件下では可視光線透過率
が低いＢ部に視線をおき、溶接作業をしないとき、すな
わち強烈な光が放射されていない条件下では、可視光線
透過率が高いＡ部に視線をおけば、溶接作業前中後を通
じて、遮光フィルターの位置を視界からずらす必要はな
い。The light-shielding filter of the present invention has a visible light transmittance different in the plane direction but can block and absorb harmful rays.
Since part B and part B are provided, during welding work, that is, when intense light is emitted, the line of sight is placed on part B, which has a low visible light transmittance, and when welding work is not performed, that is, intense light is emitted. Under the condition that is not radiated, it is not necessary to shift the position of the light shielding filter from the visual field before, during, and after the welding operation, by directing the line of sight to the portion A where the visible light transmittance is high.
【００２９】従って、溶接用遮光面又は遮光めがねに本
発明の遮光フィルターを取りつければ、作業者は、溶接
作業前中後を通じて、遮光面等を装着したまま視線を変
えるだけで作業を行うことができる。よって、本発明の
遮光フィルターを用いれば、作業性が向上する上に、溶
接部位等の確認の際にも周辺から有害光線を受ける心配
がなく、しかも液晶タイプに比べて軽量で安価である。Therefore, if the light-shielding filter of the present invention is attached to the light-shielding surface for welding or the light-shielding glasses, the worker can carry out the work by simply changing the line of sight while wearing the light-shielding surface before and after the welding work. You can Therefore, when the light-shielding filter of the present invention is used, workability is improved, there is no fear of receiving harmful rays from the surroundings when confirming a welded portion, and the weight and cost are lower than those of the liquid crystal type.
【図１】本発明一実施例に係る遮光フィルターの構成を
示す図である。FIG. 1 is a diagram showing a configuration of a light blocking filter according to an embodiment of the present invention.
【図２】本発明の他の実施例に係る遮光フィルターの構
成を示す図である。FIG. 2 is a diagram showing a configuration of a light blocking filter according to another embodiment of the present invention.
【図３】本発明の他の実施例に係る遮光フィルターの構
成を示す図である。FIG. 3 is a diagram showing a configuration of a light blocking filter according to another embodiment of the present invention.
【図４】溶接用遮光面及び遮光めがねを説明するための
図である。FIG. 4 is a diagram for explaining a light shielding surface for welding and light shielding glasses.
１０ 遮光用フィルター １１ 基板 １２ 可視光線透過率調整層 １３ 赤外線遮断層 １４ 紫外線吸収層 １４’ 紫外線吸収層 １４ａ 紫外線吸収接着剤層 １４ｂ 支持体 １５ 可視光線反射防止層 10 Shading Filter 11 Substrate 12 Visible Light Transmittance Adjustment Layer 13 Infrared Blocking Layer 14 Ultraviolet Absorption Layer 14 'Ultraviolet Absorption Layer 14a Ultraviolet Absorption Adhesive Layer 14b Support 15 Visible Light Antireflection Layer
Claims (7)
過率が０．１６％以上で且つ赤外線及び紫外線を遮断吸
収するＡ部と、可視光線透過率が０．１６％未満で且つ
赤外線及び紫外線を遮断吸収するＢ部とが設けられてい
ることを特徴とする遮光用フィルター。1. A portion having a visible light transmittance of 0.16% or more and blocking and absorbing infrared rays and ultraviolet rays in the plane direction of the substrate (11), and a visible light transmittance of less than 0.16% and infrared rays. And a section B for blocking and absorbing ultraviolet rays.
線吸収層（１４）を有し、 Ｂ部は、可視光線透過率調整層（１２）、赤外線遮断層
（１３）、及び紫外線吸収層（１４）を有していること
を特徴とする請求項１に記載の遮光用フィルター。2. The part A has an infrared ray blocking layer (13) and an ultraviolet ray absorbing layer (14), and the part B is a visible light transmittance adjusting layer (12), an infrared ray blocking layer (13), and an ultraviolet ray absorbing layer. The shading filter according to claim 1, which has a layer (14).
線反射防止層（１５）が一体的に設けられていることを
特徴とする請求項１又は２に記載の遮光用フィルター。3. The shading filter according to claim 1, wherein the infrared ray blocking layer (13) is integrally provided with a visible light antireflection layer (15).
アルミニウム蒸着膜であることを特徴とする請求項１〜
３のいずれかに記載の遮光用フィルター。4. The visible light transmittance adjusting layer (12) comprises:
It is an aluminum vapor deposition film, It is characterized by the above-mentioned.
The light-shielding filter according to any one of 3 above.
膜であることを特徴とする請求項１〜４のいずれかに記
載の遮光用フィルター。5. The shading filter according to claim 1, wherein the infrared ray blocking layer (13) is a vapor deposition film of gold.
収剤を含有したプラスチックフィルムであることを特徴
とする請求項１〜５のいずれかに記載の遮光用フィルタ
ー。6. The light-shielding filter according to claim 1, wherein the ultraviolet absorbing layer (14) is a plastic film containing an ultraviolet absorbent.
（１４ｂ）に紫外線吸収剤を含有した接着剤で構成され
る紫外線吸収接着剤部（１４ａ）を設けてなるものであ
ることを特徴とする請求項１〜６のいずれかに記載の遮
光用フィルター。7. The ultraviolet absorbing layer (14) comprises a support (14b) provided with an ultraviolet absorbing adhesive portion (14a) made of an adhesive containing an ultraviolet absorbent. The light-shielding filter according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07340594A JP3648263B2 (en) | 1994-04-12 | 1994-04-12 | Shading filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07340594A JP3648263B2 (en) | 1994-04-12 | 1994-04-12 | Shading filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07275289A true JPH07275289A (en) | 1995-10-24 |
| JP3648263B2 JP3648263B2 (en) | 2005-05-18 |
Family
ID=13517260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07340594A Expired - Fee Related JP3648263B2 (en) | 1994-04-12 | 1994-04-12 | Shading filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3648263B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102869473A (en) * | 2009-11-13 | 2013-01-09 | 林肯环球股份有限公司 | Welding arc apparel with UV activated images and method for detecting UV radiation |
| JP2013190532A (en) * | 2012-03-13 | 2013-09-26 | Nippon Valqua Ind Ltd | Filter device for observing sun |
| CN113194896A (en) * | 2019-09-20 | 2021-07-30 | 奥托斯维株式会社 | Welding protective tool applying optical function layer and panel control technology |
-
1994
- 1994-04-12 JP JP07340594A patent/JP3648263B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102869473A (en) * | 2009-11-13 | 2013-01-09 | 林肯环球股份有限公司 | Welding arc apparel with UV activated images and method for detecting UV radiation |
| JP2013510724A (en) * | 2009-11-13 | 2013-03-28 | リンカーン グローバル，インコーポレイテッド | Welding arc garment with UV activated image and method for detecting UV radiation |
| JP2014239894A (en) * | 2009-11-13 | 2014-12-25 | リンカーン グローバル，インコーポレイテッド | Welding arc apparel with uv activated images, and method of detecting uv radiation |
| JP2013190532A (en) * | 2012-03-13 | 2013-09-26 | Nippon Valqua Ind Ltd | Filter device for observing sun |
| CN113194896A (en) * | 2019-09-20 | 2021-07-30 | 奥托斯维株式会社 | Welding protective tool applying optical function layer and panel control technology |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3648263B2 (en) | 2005-05-18 |
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