JPS60235741A - Infrared transmission glass - Google Patents
Infrared transmission glassInfo
- Publication number
- JPS60235741A JPS60235741A JP59093508A JP9350884A JPS60235741A JP S60235741 A JPS60235741 A JP S60235741A JP 59093508 A JP59093508 A JP 59093508A JP 9350884 A JP9350884 A JP 9350884A JP S60235741 A JPS60235741 A JP S60235741A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- infrared
- infrared transmitting
- transmission glass
- tlbr2
- 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
- 239000011521 glass Substances 0.000 title claims abstract description 33
- 230000005540 biological transmission Effects 0.000 title description 4
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 238000010586 diagram Methods 0.000 claims abstract description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 8
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 2
- 229910002804 graphite Inorganic materials 0.000 abstract description 2
- 239000010439 graphite Substances 0.000 abstract description 2
- 239000001301 oxygen Substances 0.000 abstract description 2
- 229910052760 oxygen Inorganic materials 0.000 abstract description 2
- VNDYJBBGRKZCSX-UHFFFAOYSA-L zinc bromide Chemical compound Br[Zn]Br VNDYJBBGRKZCSX-UHFFFAOYSA-L 0.000 abstract 6
- ZASWJUOMEGBQCQ-UHFFFAOYSA-L dibromolead Chemical compound Br[Pb]Br ZASWJUOMEGBQCQ-UHFFFAOYSA-L 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000002834 transmittance Methods 0.000 description 9
- 239000003365 glass fiber Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000002178 crystalline material Substances 0.000 description 3
- 239000005383 fluoride glass Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 150000004679 hydroxides Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000005387 chalcogenide glass Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/32—Non-oxide glass compositions, e.g. binary or ternary halides, sulfides or nitrides of germanium, selenium or tellurium
Abstract
Description
【発明の詳細な説明】
腹！ユｇ側九匁
本発明は、赤外線透過ガラスに関するものである。本発
明の赤外線透過ガラスは、光通信用のガラスファイバー
、炭酸ガスレーザー用のエネルギー伝送用ガラスファイ
バー、赤外線透過レンズ等の用途に有用である。[Detailed description of the invention] Belly! The present invention relates to an infrared transmitting glass. The infrared transmitting glass of the present invention is useful for applications such as glass fibers for optical communications, energy transmission glass fibers for carbon dioxide lasers, and infrared transmitting lenses.
従来技術
光を透過させるガラス材料として、現在、石英ガラスフ
ァイバーが実用化されている。これは、主に可視光域の
光を対象にしたもので、３μｍ以上の波長で石英ガラス
固有の吸収があり、これより長波長の光を透過させるこ
とができない。BACKGROUND OF THE INVENTION Quartz glass fiber is currently in practical use as a glass material that transmits light. This is mainly aimed at light in the visible light range, and quartz glass has inherent absorption at wavelengths of 3 μm or more, and cannot transmit light with longer wavelengths.
一方、３μｍより長波長の光を透過させるガラス材料と
して、カルコゲナイドガラスやフッ化物ガラスが知られ
ている。しかし、それらの透過波長もほぼ７μｍが限界
である。On the other hand, chalcogenide glass and fluoride glass are known as glass materials that transmit light with a wavelength longer than 3 μm. However, their transmission wavelength is also limited to approximately 7 μm.
最近、１０．６μｍに発娠波長をもつ炭酸ガスレーザー
に代表されるように、赤外域波長の光源が開発されてい
る。このような長波長の光を透過させる材料として、Ｋ
Ｂｒ 、Ｔ＋！Ｂｒ 、ＴＧ！ Ｉのような結晶材料が
知られている。しかしながら、これらの結晶材料を赤外
線透過材料として使用するためには、結晶粒界のない単
結晶を１造しなければならないが、現在では、これらの
結晶材料を使った単結晶としては、板状のものを製造で
きるのみである。Recently, light sources with wavelengths in the infrared region have been developed, as typified by carbon dioxide lasers having an initiation wavelength of 10.6 μm. As a material that transmits such long wavelength light, K
Br, T+! Br, TG! Crystalline materials such as I are known. However, in order to use these crystalline materials as infrared transmitting materials, it is necessary to make a single crystal without grain boundaries, but currently, single crystals made from these crystalline materials are plate-shaped. It is only possible to manufacture .
従って、寸法及び形状に対する制約の少ないガラスの特
徴を生かす為、赤外線を透過させ得る新たなガラス材料
を開発することが強く望まれている。Therefore, there is a strong desire to develop a new glass material that can transmit infrared rays in order to take advantage of the characteristics of glass, which has fewer restrictions on size and shape.
Ｂ明の目的及び敬承
本発明は、上記の点に鑑み、赤外線を透過させるガラス
材料を提供することを目的としたものである。OBJECTS AND ACKNOWLEDGMENTS In view of the above points, the present invention aims to provide a glass material that transmits infrared rays.
即チ、本発明ハ、Ｚｎ Ｂｒ２、Ｐｂ Ｓｒ、、及びＴ
ＱＢｒから成り、その組成割合が、第１図に示すモル比
三角成分図において、Ａ（４５，０，５５） 、Ｂ （
３５，１０，５５）、Ｃ（３５，３０，３５）、Ｄ （
４５，３０，２５）、Ｅ（６５，１０，２５）及びＦ（
６５，０，３５）の各点を結ぶ直線で囲まれた領域内に
あることをＦｉｒＰｉとする赤外線透過ガラスに係るも
のである。That is, H, the present invention C, Zn Br2, Pb Sr, and T
QBr, whose composition ratios are A(45,0,55), B(
35,10,55), C(35,30,35), D(
45,30,25), E(65,10,25) and F(
This relates to an infrared transmitting glass whose FirPi is defined as being within an area surrounded by straight lines connecting the points 65, 0, 35).
本発明によると、上記組成範囲にあるガラスは、全て無
色透明のガラスとなり、２５μｍ以下の赤外線を透過さ
せることができるため、赤外線透過ガラスとして有効に
使用することができる。According to the present invention, all glasses within the above composition range are colorless and transparent and can transmit infrared rays of 25 μm or less, so they can be effectively used as infrared transmitting glasses.
本発明のガラスを製造するための原料は、ｌｎ Ｂｒ２
．Ｐｂ ＢｒＱ及びＴＱ Ｂｒ ｒある。これらが、水
和物や酸化物を含んでいると、できたガラスの赤外線透
過率を低下させる原因となるので、できるだけ不純物の
少ないものを使用することが望ましい。The raw material for producing the glass of the present invention is ln Br2
．． There are Pb BrQ and TQ Br r. If these contain hydrates or oxides, it will cause a decrease in the infrared transmittance of the resulting glass, so it is desirable to use ones with as few impurities as possible.
本発明のガラスを製造する方法としては、まず、原料を
秤量、混合した後、ルツボ内で加熱して溶融する。溶融
温度は、２５０℃から７００℃の範囲とすることが必要
である。２５０℃より低いと原料が溶融せず７００℃よ
り高いと一部成分の逃散が起こる危険性があり、通常は
５００’Ｃ前後の温度が望ましい。溶融時間は、溶融体
の均質化のために長い程よいが通常３０分間程度で充分
均一なガラスを得ることができる。この場合、途中、撹
拌することも、均質なガラスを得るためには望ましい操
作である。As a method for manufacturing the glass of the present invention, first, raw materials are weighed and mixed, and then heated and melted in a crucible. The melting temperature needs to be in the range of 250°C to 700°C. If it is lower than 250°C, the raw material will not melt, and if it is higher than 700°C, there is a risk that some components will escape, so a temperature of around 500'C is usually desirable. The longer the melting time, the better, in order to homogenize the melt, but usually a sufficiently uniform glass can be obtained within about 30 minutes. In this case, stirring during the process is also a desirable operation in order to obtain a homogeneous glass.
また、溶融時の雰囲気調整も赤外線透過率の高いガラス
を得るために重要である。空気中の酸素や水分が存在す
ると、ガラス中に酸化物や水酸化物を発生させる原因と
なり、これらの化合物は、ガラスの赤外線透過率を低下
させる。このため、「１素や水分はＮ２や八「ガスなど
の不活性ガス雰囲気によって除去することが必要である
。更に１良素ガスを吹き付けることも、酸化物や水酸化
物の発生を防ぐためには望ましい操作であるが、不可欠
なものではない。In addition, controlling the atmosphere during melting is also important in order to obtain a glass with high infrared transmittance. The presence of oxygen and moisture in the air causes oxides and hydroxides to be generated in the glass, and these compounds reduce the infrared transmittance of the glass. For this reason, it is necessary to remove ``1'' and moisture using an inert gas atmosphere such as N2 or ``8'' gas.It is also necessary to spray 1'' gas to prevent the generation of oxides and hydroxides. is a desirable operation, but not essential.
次いで、溶融体は、金属、黒鉛等で作られた型枠に流し
出し、冷却することで無色透明なガラスとすることがで
きる。Next, the molten material can be poured into a mold made of metal, graphite, etc., and cooled to form colorless and transparent glass.
また、このようにして得られる赤外線透過ガラスは、通
常知られている方法により、ガラスファイバーとするこ
とができる。このようなガラスファイバーは光通信用の
光ファイバーなどとして有効に使用できる。Further, the infrared transmitting glass thus obtained can be made into glass fiber by a commonly known method. Such glass fibers can be effectively used as optical fibers for optical communications.
発明の効果
本発明の赤外線透過ガラスは、２５μｍまでの赤外線を
透過することができ、かつ自由な形状とすることができ
る。よって、２５μｍまでの波長範囲にある赤外線を透
過させる材料として、種々の用途に使用することができ
、例えば赤外線を透過光とするエネルギー伝送用ファイ
バーや光通信用ファイバーとして有効に使用でき、また
レンズ状に成形して、赤外線透過レンズとしても使用す
ることができる。Effects of the Invention The infrared transmitting glass of the present invention can transmit infrared rays up to 25 μm and can be formed into any shape. Therefore, it can be used for various purposes as a material that transmits infrared rays in the wavelength range up to 25 μm. For example, it can be effectively used as an energy transmission fiber or optical communication fiber that transmits infrared rays, and it can also be used as a lens. It can also be molded into a shape and used as an infrared transmitting lens.
実 施 例 次に実施例を示して本発明を更に詳しく説明する。Example Next, the present invention will be explained in more detail by showing examples.
実施例１
１ｎ Ｂｒ ２４２．８ｇ、Ｐｂ Ｂｔ’ ２１４．
ＯＱ及びＴＱＢｒ ４３．２ｇを秤量、混合し、白金ル
ツボを用いて４２０℃で３０分間溶融し、金属板上に流
しだして７０Ｘ７０Ｘ５ （＋１１１）程度の板状ガラ
スを得た。なお、ここまでの操作は窒素ガス雰囲気下で
行った。できたガラスは、Ｚｎ ３ｒ ２５０モル％、
ｐｂＢｒ２１０モル％及びＴ９Ｂｒ４０モル％の無色透
明なガラスであり、ガラス転移温度は４３℃、結晶化温
度は１１０℃であった。Example 1 1n Br 242.8g, Pb Bt' 214.
43.2 g of OQ and TQBr were weighed and mixed, melted at 420° C. for 30 minutes using a platinum crucible, and poured onto a metal plate to obtain a plate glass of approximately 70×70×5 (+111). Note that the operations up to this point were performed under a nitrogen gas atmosphere. The resulting glass contains 250 mol% of Zn 3r,
It was a colorless and transparent glass containing 210 mol% of pbBr and 40 mol% of T9Br, and had a glass transition temperature of 43°C and a crystallization temperature of 110°C.
この試料、について、赤外線透過率の測定を行った結果
を第２図に示す。FIG. 2 shows the results of measuring the infrared transmittance of this sample.
比較例２及び３
従来品として実施例１と同一形状の石英ガラス及びフッ
化物ガラスについて赤外線透過率を測定した結果を第２
図に示す。Comparative Examples 2 and 3 The results of measuring infrared transmittance of quartz glass and fluoride glass of the same shape as Example 1 as conventional products are shown in the second table.
As shown in the figure.
実施例１と比較例２．３より、本発明赤外線透過ガラス
は可視光線波長域の光から波長２５μｍの赤外線まで高
い透過率を示し、従来品と比較して優れた赤外線透過ガ
ラスであることがわかる。From Example 1 and Comparative Examples 2.3, the infrared transmitting glass of the present invention exhibits high transmittance from light in the visible light wavelength range to infrared light with a wavelength of 25 μm, and is an excellent infrared transmitting glass compared to conventional products. Recognize.
実施例２〜６
組成割合以外は実施例１と同様にして第１表の組成の赤
外線透過ガラスを製造した。Examples 2 to 6 Infrared transmitting glasses having the compositions shown in Table 1 were produced in the same manner as in Example 1 except for the composition ratios.
第 １ 表
得られたガラスはすべて無色透明であり、実施例１の赤
外線透過ガラスとほぼ同様な赤外線吸収曲線を示した。Table 1 All of the obtained glasses were colorless and transparent, and showed almost the same infrared absorption curve as the infrared transmitting glass of Example 1.
第１図は、本発明を構成する組成領域を示したモル比三
角成分図である。
第２図は、透過率曲線を示すグラフである。
（１）は、実施例１の赤外線透過ガラス、（２）はフッ
化物ガラス、（３〉は石英ガラスの透過率曲線である。
（以 上）
代理人 弁理士 三 枝 英 二FIG. 1 is a triangular molar ratio diagram showing the compositional regions constituting the present invention. FIG. 2 is a graph showing a transmittance curve. (1) is the transmittance curve of the infrared transmitting glass of Example 1, (2) is the fluoride glass, and (3> is the transmittance curve of the quartz glass. (Above) Agent: Eiji Saegusa, patent attorney
Claims (1)
、その組成割合が、第１図に示すモル比三角成分図にお
いて、Ａ（４５，０，５５）、Ｂ（３５，１０，５５）
、Ｃ（３５，３０，３５）、Ｄ（４５，３０，２５＞、
Ｅ （６５，１０，２５）及びＦ（６５，０，３５）の
各点を結ぶ直線で囲まれた領域内にあることを特徴とす
る赤外線透過ガラス。■ Consisting of Zn Br2, Pb Br2 and TQBr, whose composition ratios are A (45, 0, 55) and B (35, 10, 55) in the molar ratio triangular diagram shown in Figure 1.
, C(35,30,35), D(45,30,25>,
An infrared transmitting glass characterized by being located within an area surrounded by straight lines connecting points E (65, 10, 25) and F (65, 0, 35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59093508A JPS60235741A (en) | 1984-05-09 | 1984-05-09 | Infrared transmission glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59093508A JPS60235741A (en) | 1984-05-09 | 1984-05-09 | Infrared transmission glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60235741A true JPS60235741A (en) | 1985-11-22 |
| JPS6350297B2 JPS6350297B2 (en) | 1988-10-07 |
Family
ID=14084286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59093508A Granted JPS60235741A (en) | 1984-05-09 | 1984-05-09 | Infrared transmission glass |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60235741A (en) |
-
1984
- 1984-05-09 JP JP59093508A patent/JPS60235741A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6350297B2 (en) | 1988-10-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |