JPH0343484A - Infrared transmission filter - Google Patents
Infrared transmission filterInfo
- Publication number
- JPH0343484A JPH0343484A JP17971589A JP17971589A JPH0343484A JP H0343484 A JPH0343484 A JP H0343484A JP 17971589 A JP17971589 A JP 17971589A JP 17971589 A JP17971589 A JP 17971589A JP H0343484 A JPH0343484 A JP H0343484A
- Authority
- JP
- Japan
- Prior art keywords
- dye
- synthetic resin
- filter
- infrared
- formula
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 title abstract description 5
- 239000000975 dye Substances 0.000 claims abstract description 22
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims 3
- 229920003002 synthetic resin Polymers 0.000 abstract description 14
- 239000000057 synthetic resin Substances 0.000 abstract description 14
- 238000002156 mixing Methods 0.000 abstract description 9
- 239000001045 blue dye Substances 0.000 abstract description 7
- 239000001044 red dye Substances 0.000 abstract description 7
- 239000001043 yellow dye Substances 0.000 abstract description 6
- 239000004793 Polystyrene Substances 0.000 abstract description 2
- 229920001577 copolymer Polymers 0.000 abstract description 2
- 229920000515 polycarbonate Polymers 0.000 abstract description 2
- 239000004417 polycarbonate Substances 0.000 abstract description 2
- -1 polyethylene terephthalate Polymers 0.000 abstract description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract description 2
- 239000005020 polyethylene terephthalate Substances 0.000 abstract description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 abstract 2
- 238000013329 compounding Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 description 9
- 238000002834 transmittance Methods 0.000 description 6
- AJDUTMFFZHIJEM-UHFFFAOYSA-N n-(9,10-dioxoanthracen-1-yl)-4-[4-[[4-[4-[(9,10-dioxoanthracen-1-yl)carbamoyl]phenyl]phenyl]diazenyl]phenyl]benzamide Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2NC(=O)C(C=C1)=CC=C1C(C=C1)=CC=C1N=NC(C=C1)=CC=C1C(C=C1)=CC=C1C(=O)NC1=CC=CC2=C1C(=O)C1=CC=CC=C1C2=O AJDUTMFFZHIJEM-UHFFFAOYSA-N 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- VAYOSLLFUXYJDT-RDTXWAMCSA-N Lysergic acid diethylamide Chemical compound C1=CC(C=2[C@H](N(C)C[C@@H](C=2)C(=O)N(CC)CC)C2)=C3C2=CNC3=C1 VAYOSLLFUXYJDT-RDTXWAMCSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920002285 poly(styrene-co-acrylonitrile) Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は赤外線透過フィルターに関するものである。詳
しくは、可視光線を遮断し近赤外線を通過させる黒色の
フィルターに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an infrared transmission filter. Specifically, it relates to a black filter that blocks visible light and passes near-infrared rays.
赤外線を利用する装置として、テレビジョンや空調機器
等の電気機器の遠隔制御装置、物品の計数装置、自動扉
、警報装置等種々のものが実用されている。Various devices that utilize infrared rays are in practical use, such as remote control devices for electrical equipment such as televisions and air conditioners, counting devices for articles, automatic doors, and alarm devices.
これらの装置にかいては、赤外線を発生させる発光器と
、これから発生した赤外線を受信する受光器とを組合せ
て使用するが、一般に発光器から特定波長の赤外線を発
生させることは比較的容易であるのに対し、受光器に使
用される受光素子は近赤外線から可視光線にわたる広い
範囲において感度を有するものが多い。These devices use a combination of an emitter that generates infrared rays and a receiver that receives the emitted infrared rays, but it is generally relatively easy to generate infrared rays of a specific wavelength from an emitter. On the other hand, many of the light-receiving elements used in light receivers have sensitivity in a wide range from near-infrared rays to visible light.
このため、上記のような装置においては、可視光線によ
る誤動作を避けるために、可視光線を遮断し、赤外線の
みを通過させるフィルターを使用することが必要である
。Therefore, in the above-described apparatus, in order to avoid malfunctions caused by visible light, it is necessary to use a filter that blocks visible light and allows only infrared rays to pass.
この目的のフィルターとしては、波長ｒｏｏｍμ付近を
界にして、これよシ短波長の可視光線は殆んど通過させ
ず、これよジ長波長の赤外線に対して大きい透過率を有
する反転特性を有するものであることが望まれる。A filter for this purpose has an inversion characteristic, with a field near the wavelength roomμ, which hardly allows visible light with a shorter wavelength to pass through, and has a high transmittance for infrared light with a longer wavelength. It is hoped that it will be a thing.
このようなフィルターは、通常透明な合成樹脂に特定の
染料を配合することによう得られるが、ここで用いる染
料としては、赤外線の透過性とともに樹脂成形時の耐熱
性も要求され、その選定にはかなシの制約がある。特に
、近時、黒色のフィルターが要望されているが、染料に
より黒色とするためには、三原色の染料を各々配合する
必要がち９、各染料について満足できるものを選定する
ことは難しい。そのため、従来、黒色の赤外線透過フィ
ルターを得ようとする場合、合成樹脂にカーボンブラッ
クを配合していたが、この場合、赤外線透過の面では十
分とは言い難かった。Such filters are usually obtained by blending specific dyes into transparent synthetic resins, but the dyes used here are required to have infrared transmittance as well as heat resistance during resin molding, and their selection is There are ephemeral restrictions. In particular, there has been a recent demand for black filters, but in order to achieve black color using dyes, it is necessary to mix each of the three primary color dyes9, and it is difficult to select a satisfactory dye for each color. Therefore, conventionally, when trying to obtain a black infrared transmitting filter, carbon black was blended into a synthetic resin, but in this case, it was difficult to say that it was sufficient in terms of infrared transmittance.
（課題を解決するための手段）
本発明者等は上記実情に鑑み、合成樹脂にカーボンブラ
ックを配合せず、染料だけの配合で黒色となる赤外線透
過フィルターを得るべく種々検討した結果、ある特定の
青色、黄色及び赤色染料を採用することにより、可視光
線の透過が低く、シかも、それ以上の赤外線透過が大き
い上、耐光性及び耐熱性の良好な黒色の赤外線透過フィ
ルターが得られることを見い出した。(Means for Solving the Problems) In view of the above circumstances, the present inventors conducted various studies to obtain an infrared transmitting filter that is black by blending only dye without blending carbon black into the synthetic resin. By using blue, yellow, and red dyes, it is possible to obtain a black infrared transmitting filter that has low visible light transmission, high infrared transmission, and good light resistance and heat resistance. I found it.
すなわち、本発明の要旨は、透明な合成樹脂に、青色酸
分として下記構造式（Ｉｌｌ
で表わされる染料、
黄色成分として下記構造式
で表わされる染料及び赤色成分として下記構造式（ＩＩ
Ｉ）
で表わされる染料を各々配合したものからなることを特
徴とする黒色の赤外線フィルターに存する。That is, the gist of the present invention is to apply a dye represented by the following structural formula (Ill) as a blue acid component to a transparent synthetic resin, a dye represented by the following structural formula (II) as a yellow component, and a dye represented by the following structural formula (II) as a red component.
I) A black infrared filter characterized by being made of a blend of dyes represented by the following.
以下、本発明の詳細な説明する。The present invention will be explained in detail below.
本発明で対象となる透明な合成樹脂としては、特に限定
されるものではないが、通常、ポリスチレ／、ポリエチ
レンテレフタレート、ポリカーボネートスチレン−アク
リロニトリル共重合体などの熱可塑性合成樹脂が挙げら
れる。The transparent synthetic resin targeted by the present invention is not particularly limited, but usually includes thermoplastic synthetic resins such as polystyrene, polyethylene terephthalate, and polycarbonate styrene-acrylonitrile copolymer.
本発明においては、上述の合成樹脂に前売構造式の青色
染料、黄色染料及び赤色染料を各々配合するが、その配
合量は通常、合成樹脂に対して０．０１−／重量％、好
ましくは０．０３〜０、／重量％である。この配合量が
あまりに少いと可視光線の遮断性が不足するようになり
、逆にあまりに多いと赤外線の透過率が低下するように
なる。In the present invention, a blue dye, a yellow dye, and a red dye each having the structural formula of advance are blended into the above-mentioned synthetic resin, and the blending amount is usually 0.01% by weight, preferably 0.01% by weight based on the synthetic resin. .03-0,/wt%. If the amount is too small, visible light blocking properties will be insufficient, and if it is too large, infrared transmittance will be reduced.
本発明に釦ける各染料の配合割合は、得られるフィルタ
ーが所望の黒色になるように適宜決定するが、通常、青
色染料・７黄色染料：赤色染利の混合化率Ｑづ１０・−
ダ０ ： ｉ −、−ｉ ０ニタ０−・ｇｏ（重ｆｉｔ
％）である。The blending ratio of each dye used in the present invention is appropriately determined so that the resulting filter has the desired black color, but usually, the mixing ratio of blue dye, 7 yellow dye: red dye is 10.
Da0: i-,-i 0nita0-・go(heavy fit
%).
合成樹脂に名染料を配合する方法と１７では、フィルタ
ーどなり得る任意の形状面合成樹脂成形品を製造するま
での適当な段階で染料を含有さ１−ハば、Ｊ：１ハが、
通′帛、合成樹脂粉末壊たはべ１／ノドに染料粉末を混
合し７、ごれ分溶融押出Ｅ７−τ切断、べＬ・ツト化づ
る方法、あるい（ｒＪ、染相奈多措尼含有させたマスク
・−べ１ノツトを調製し、これと合成樹脂ベレノＩ−を
混合する方法などが奸適でちる。In method 17 of blending a famous dye into a synthetic resin, the dye is contained at an appropriate stage before producing a synthetic resin molded product of any shape that can be used as a filter.
General procedure: Mixing dye powder with synthetic resin powder 1/nod 7, melt extrusion of dirt, E7-τ cutting, method of forming into bead L/Tut, or (rJ, dyeing method) A suitable method is to prepare a mask compound containing the compound and mix it with the synthetic resin Bereno I.
己１１らべしパットから成形品を・製造するにＯｌ、従
来周知の種々の方法、ｆｌｌえば、射出成形、押出成形
、圧縮成形などの方法によって所望の形状に成形Ｊる。To manufacture a molded product from the pad, it is molded into a desired shape by various conventionally known methods, including injection molding, extrusion molding, and compression molding.
本発明の赤外線適過ノイルターにｉｒｊ： 、その光学
的性質を損わない限りに釦いて、例えば、安定剤、耐候
剤などの公知の添加剤を配置（−でもよい。In the infrared filter of the present invention, known additives such as stabilizers and weathering agents may be added to the infrared ray filter as long as they do not impair its optical properties.
以下、実施例によって本発明を具体的に訝、明するが、
本発明はその要旨をこえない限り以下の実施例に限定さ
れるものではない。Hereinafter, the present invention will be specifically explained by examples.
The present invention is not limited to the following examples unless it exceeds the gist thereof.
なお、実施例中「部」は「重散部−１を示す。In addition, in the examples, "part" indicates "heavy dispersion part-1."
実施例／
市販のスチレン−アクリロ−＝トリル共重合ボリワー粉
末１０θ部に対１〜、前爪一般式［１１）、（１１’Ｊ
及びＣＩＩＮ］で示される染料を合せてθ、θψ部加え
てノθ咄φベント式押出機を用いｆ、２．１’θ℃で溶
解混合・Ｌ２、押出；２．でストランド化１〜切断して
チップとしｆｒ：、ｏ尚、咎染料の使用割合は、青色染
料（Ｉ）：黄色染料１： ＩＩ ） ：赤色染料ＣＩＩ
ＩＩ＝ＪＡ：ｇ′：３′、４（重病比）である。Example / 1 to 10 parts of commercially available styrene-acrylo-tolyl copolymer powder powder, front nail general formula [11), (11'J
and CIIN] were added in θ and θψ parts, and melted and mixed at 2.1'θ°C using a vented extruder. L2, extrusion; 2. Strand 1 to cut into chips fr:, o The ratio of dyes used is: blue dye (I): yellow dye 1: II): red dye CII
II=JA:g':3', 4 (serious disease ratio).
己のチップを／オンス射出成形機と直径３−０訪厚さ、
２間の円板を成形ｔ″ｚ）金型を用いて３００℃で成形
を行って黒色に着色さ第１た赤外線透過フ側ルターを得
た。こｉｌらのフィルターにつき、日立製作所■製分光
光度計ＥＰＳ ＥＴ型を用いて、？、ｊＯｒｎμにお
ける光線透過率を測定した結果、第１表医用づ゛通りで
あった。また、この黒色゛７．イルターの耐光堅牟庶及
び耐熱性は非常に良好なものであった。own chip/oz injection molding machine and diameter 3-0 thickness,
Molding was carried out at 300°C using a mold for molding two discs to obtain a first infrared transmitting filter colored black. Using a spectrophotometer EPS ET model, the light transmittance of ? It was very good.
実施例１
実施例／［有］方法において、青色染料、黄色染料及び
赤色染料の便用割合をｌ！−！部：／／部＝」７部ど変
更１７同様なテストを行った結果を第１表に示す。Example 1 Example/In the method, the proportions of blue dye, yellow dye and red dye were adjusted to 1! -! Part://Part='7 Change 17 Table 1 shows the results of a similar test.
比較例／
実施例／の方法に１・・いて、青色染料のみを下記構造
式（ａＬ］
で示される染料に代えて同様なテストを行った場合の結
果を第１表に示す。また、にの黒色フィルターは耐光堅
牟度及び耐熱性が不十分なものであった。Table 1 shows the results when a similar test was carried out using the method of Comparative Example/Example/1... and replacing only the blue dye with the dye represented by the following structural formula (aL). The black filter had insufficient light fastness and heat resistance.
ＯＮＨＣＨ３
比較例ｉ
実施例１の方法尼も・いて、赤色染料のみを下記構造式
〔【）〕で示される染料に代えで同様なテストを行った
場合の結果金弟１表に示“第０第
表
〔発明の効果〕
本発明の赤外線透過フィルターは、可視光線遮断釦よび
赤外線透過性が大きいので、赤外線透過フィルターとし
て極めてすぐれてかり、しかも美しい黒色であり、特に
耐光堅牢度が優れている上、機械的性質、加工性などの
諸性質も優れているので、利用価値が大きい。ONHCH3 Comparative Example i Using the method of Example 1, a similar test was carried out by replacing only the red dye with the dye represented by the following structural formula [[)].The results are shown in Table 1. Table [Effects of the Invention] The infrared transmitting filter of the present invention has a visible light blocking button and high infrared transmittance, so it is extremely excellent as an infrared transmitting filter, and has a beautiful black color, and is particularly excellent in light fastness. Moreover, it has excellent mechanical properties, workability, and other properties, so it has great utility value.
Claims (1)
I 〕 ▲数式、化学式、表等があります▼・・・〔 I 〕 で表わされる染料、黄色成分として下記構造式〔II〕 ▲数式、化学式、表等があります▼・・・〔II〕 で表わされる染料及び赤色成分として下記構造式〔III
〕 ▲数式、化学式、表等があります▼・・・〔III〕 で表わされる染料を各々配合したものからなることを特
徴とする黒色の赤外線透過フィルター。(1) The following structural formula [
I 〕 ▲There are mathematical formulas, chemical formulas, tables, etc.▼...[I] The yellow component of the dye is represented by the following structural formula [II] ▲There are mathematical formulas, chemical formulas, tables, etc.▼...[II] The following structural formula [III
] ▲There are mathematical formulas, chemical formulas, tables, etc.▼...[III] A black infrared transmitting filter characterized by being made of a blend of dyes represented by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17971589A JPH0343484A (en) | 1989-07-12 | 1989-07-12 | Infrared transmission filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17971589A JPH0343484A (en) | 1989-07-12 | 1989-07-12 | Infrared transmission filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0343484A true JPH0343484A (en) | 1991-02-25 |
Family
ID=16070608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17971589A Pending JPH0343484A (en) | 1989-07-12 | 1989-07-12 | Infrared transmission filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0343484A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000309694A (en) * | 1999-02-18 | 2000-11-07 | Ticona Gmbh | Polyester molding material and its use in laser beam welding |
| EP1353990A2 (en) † | 2000-11-13 | 2003-10-22 | E.I. Du Pont De Nemours And Company | Colored thermoplastic resin compositions for laser welding, specific neutral anthraquinone dyes as colorants therefor, and molded product therefrom |
| JP2004517995A (en) * | 2000-11-13 | 2004-06-17 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | Secondary processing resin product for laser welding containing permeable and absorbing black colorant, and colored resin composition therefor |
| WO2006025673A1 (en) * | 2004-08-28 | 2006-03-09 | Lg Chem. Ltd. | Film for pdp filter, pdp filter comprising the same and plasma display panel produced by using the pdp filter |
| WO2012124737A1 (en) * | 2011-03-15 | 2012-09-20 | 昭和電工株式会社 | Moisture-proof insulative coating with visible light-blocking properties |
| US9297927B2 (en) | 2012-11-27 | 2016-03-29 | Jsr Corporation | Photosensitive composition, colorant dispersion solution, light filter and light sensor |
-
1989
- 1989-07-12 JP JP17971589A patent/JPH0343484A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000309694A (en) * | 1999-02-18 | 2000-11-07 | Ticona Gmbh | Polyester molding material and its use in laser beam welding |
| EP1353990A2 (en) † | 2000-11-13 | 2003-10-22 | E.I. Du Pont De Nemours And Company | Colored thermoplastic resin compositions for laser welding, specific neutral anthraquinone dyes as colorants therefor, and molded product therefrom |
| EP1353991A1 (en) † | 2000-11-13 | 2003-10-22 | E.I. Dupont De Nemours And Company | Colored thermoplastic resin compositions for laser welding, specific neutral anthraquinone dyes as colorants therefor, and molded product therefrom |
| JP2004517995A (en) * | 2000-11-13 | 2004-06-17 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | Secondary processing resin product for laser welding containing permeable and absorbing black colorant, and colored resin composition therefor |
| JP2004534104A (en) * | 2000-11-13 | 2004-11-11 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | Colored thermoplastic composition for laser welding, specific neutral anthraquinone dyes as colorants therefor, and products molded therefrom |
| JP2008024946A (en) * | 2000-11-13 | 2008-02-07 | E I Du Pont De Nemours & Co | Resin composition suitable for laser welding application having resin and laser beam transmitting colorant, and having transmission rate ratio (t black resin for laser transmission/t natural resin) of 0.5-1.2 |
| EP1353990B2 (en) † | 2000-11-13 | 2009-08-12 | E.I. Du Pont De Nemours And Company | Colored thermoplastic resin compositions for laser welding, specific neutral anthraquinone dyes as colorants therefor, and molded product therefrom |
| EP1353991B2 (en) † | 2000-11-13 | 2014-11-12 | E.I. Du Pont De Nemours And Company | Colored thermoplastic resin compositions for laser welding, specific neutral anthraquinone dyes as colorants therefor, and molded product therefrom |
| WO2006025673A1 (en) * | 2004-08-28 | 2006-03-09 | Lg Chem. Ltd. | Film for pdp filter, pdp filter comprising the same and plasma display panel produced by using the pdp filter |
| WO2012124737A1 (en) * | 2011-03-15 | 2012-09-20 | 昭和電工株式会社 | Moisture-proof insulative coating with visible light-blocking properties |
| CN103429686A (en) * | 2011-03-15 | 2013-12-04 | 昭和电工株式会社 | Moisture-proof insulative coating with visible light-blocking properties |
| US9297927B2 (en) | 2012-11-27 | 2016-03-29 | Jsr Corporation | Photosensitive composition, colorant dispersion solution, light filter and light sensor |
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