JPS6027621A - Infrared transmission glass - Google Patents
Infrared transmission glassInfo
- Publication number
- JPS6027621A JPS6027621A JP13587683A JP13587683A JPS6027621A JP S6027621 A JPS6027621 A JP S6027621A JP 13587683 A JP13587683 A JP 13587683A JP 13587683 A JP13587683 A JP 13587683A JP S6027621 A JPS6027621 A JP S6027621A
- Authority
- JP
- Japan
- Prior art keywords
- fluoride
- fluorides
- glass
- infrared transmission
- inf3
- 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
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
- C03C3/325—Fluoride glasses
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は弗化物からなる光学的特性の優れた赤外線透過
ガラスに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an infrared transmitting glass made of fluoride and having excellent optical properties.
赤外線用光学部品、赤外線伝送路用材料として注目され
ているものに、弗化ジルコニウムまだは弗化ハフニウム
などを主成分とするガラスがあり、この系のガラスは８
μｍまでの赤外線が透過できるが、散乱が大きいだめ上
記のごとき光学用には問題がある。Glasses whose main components are zirconium fluoride and hafnium fluoride are attracting attention as materials for infrared optical components and infrared transmission paths.
Although it can transmit infrared rays down to .mu.m, it causes a problem in optical applications such as those mentioned above due to large scattering.
例えば弗化ハフニウムおよび／または弗化ジルコニウム
を４８〜７０モル−の範囲とし、以下弗化バリウム１註
〜３５
リウム、ランタニド元素の弗化物、弗化トリウム中から
選ばれた少なくとも１種以上の弗化物１〜８モルチ、ア
ルカリ金属元素の弗化物中から選ばれた少なくとも１種
以上の弗化物０〜３０モル係、弗化アルミニウム０ル８
ものは安定なガラスとなり得るが、これら組成のガラス
はいずれも強い散乱現象を惹き起す／こめ、既述の光学
部品、光伝送路用材料としての実用化が困難となってい
る。For example, hafnium fluoride and/or zirconium fluoride may be used in an amount of 48 to 70 mol, and at least one fluoride selected from 1 to 35 mol of barium fluoride, fluorides of lanthanide elements, and thorium fluoride may be used. 1 to 8 moles of fluorides, 0 to 30 moles of at least one fluoride selected from fluorides of alkali metal elements, and 0 to 8 moles of aluminum fluoride, but glasses with these compositions All of these materials cause strong scattering phenomena, making it difficult to put them to practical use as optical components or materials for optical transmission lines as described above.
本発明は上記の問題点に鑑み、この種の赤外線透過ガラ
スにおいて当該ガラス中に弗化インジウムを添加するこ
とにより散乱の減少をはかるようにしたもので、その特
徴とする構成はり下の通りである。In view of the above problems, the present invention aims to reduce scattering in this type of infrared transmitting glass by adding indium fluoride to the glass, and its characteristic structure is as follows: be.
すなわち本発明に係る赤外線透過ガラスは、弗化ハフニ
ウムおよび／または弗化ジルコニウム４８〜７０モルチ
と、弗化バリウム１０−３５の弗化物、弗化トリウム中
から選ばれた少なくとも１種以上の弗化物１〜８モルチ
と、アルカリ金属元素化物中から選ばれた少なくとも１
種以上の弗化物θ〜３０モルチと、弗化アルミニウム０
ル８
５モルチとからなることを特徴としている。That is, the infrared transmitting glass according to the present invention contains at least one fluoride selected from hafnium fluoride and/or zirconium fluoride 48 to 70 molt, a fluoride of barium fluoride 10-35, and thorium fluoride. 1 to 8 molti and at least 1 selected from alkali metal elemental compounds.
Species or more of fluoride θ~30molti and aluminum fluoride 0
It is characterized by consisting of 85 molti.
かかる本発明の場合、弗化インジウムを含まないガラス
系において既述の赤外線透過性、熱的安定性を具備して
いるのであり、これに弗化インジウムが添加されたこと
により、弗化インジウムを含まないガラス系と比べ、光
散乱強度が約１００分の１程度にまで減じられている。In the case of the present invention, a glass system that does not contain indium fluoride has the above-mentioned infrared transmittance and thermal stability, and by adding indium fluoride to this glass system, indium fluoride can be The light scattering intensity is reduced to about 1/100 compared to a glass system that does not contain it.
上記弗化物系ガラス中に弗化インジウムを添加する手段
としては、その原料混合物中に弗化インジウムを加える
とか、ちるいはインジウムの酸化物、水酸化物、炭酸塩
などのように分解ニヨリインジウム酸化物を生成するよ
うなイノジウム化合物を、酸性弗化アンモニウムのごと
き弗素化剤とともに原料中に混合し、以下その原料をガ
ラス溶融するといった方法が採用される。Indium fluoride can be added to the above-mentioned fluoride glass by adding indium fluoride to the raw material mixture, or by decomposing indium fluoride into indium oxides, hydroxides, carbonates, etc. A method is adopted in which an inodium compound that produces an oxide is mixed into a raw material together with a fluorinating agent such as acidic ammonium fluoride, and the raw material is then melted into glass.
散乱現象を抑制するのに必要な弗化インジウムの量は上
記ガラスを構成している全成分に対し、０．０．１モル
チ以上であり、００１モルチを下回ると散乱現象を十分
に抑制することができない。The amount of indium fluoride necessary to suppress the scattering phenomenon is 0.0.1 molti or more based on all the components constituting the glass, and if it is less than 0.01 molti, the scattering phenomenon can be sufficiently suppressed. I can't.
この弗化インジウムの量としては０８１〜２モルチ程度
がよいといえるが、ガラスの物性に不利が生じないかぎ
り、これの量は任意に増してよい。It can be said that the amount of indium fluoride is preferably about 0.81 to 2 molty, but the amount may be increased arbitrarily as long as it does not adversely affect the physical properties of the glass.
しかし弗化インジウムの量が５モルチを」二回るとガラ
スが不安定になる傾向があられれるので、これの上限値
は実用的にみて５モルチとなる。However, if the amount of indium fluoride exceeds 5 molts, the glass tends to become unstable, so the upper limit for practical use is 5 molts.
つぎに本発明の具体的実施例について説明する。Next, specific examples of the present invention will be described.
雄側
所定元素の各弗化物をガラス原料とし、これらを白金製
のルツボ内に入れて溶融し、次表のごとき組成の各種ガ
ラスを作製した。Each fluoride of a predetermined element on the male side was used as a glass raw material, and these were placed in a platinum crucible and melted to produce various glasses having the compositions shown in the following table.
表に示した各実施例でのガラスは、熱的に安定していて
大きな塊のガラスが作成でき、結晶化をきたすことなく
元ファイバに加工することができた。The glasses in each of the Examples shown in the table were thermally stable and could be made into large lumps of glass, which could be processed into original fibers without crystallization.
もちろん各実施例とも光散乱の傾向はみられず、８μｍ
程度の長波長の赤外線まで優れた赤外透過特性を有して
いた。Of course, in each example, no tendency of light scattering was observed, and 8 μm
It had excellent infrared transmission properties up to relatively long wavelength infrared rays.
以上説明した通り、本発明が特徴としている構成の赤外
線透過ガラスは、ガラスの物性が安定している上、光の
散乱がきわめて少なく、シ恢がって赤外線用光学部品、
赤外線伝送路用劇料として好適なものとなる。As explained above, the infrared transmitting glass having the structure characterized by the present invention has stable physical properties and very little scattering of light, and can be used as an infrared optical component.
It is suitable as a material for infrared transmission lines.
Claims (1)
〜７０モルチと、弗化バリウム１０−３５ 元素の弗化物、弗化トリウム中から選ばれた少なくとも
１種以上の弗化物１〜８モル係と、アルカリ金属元素の
弗化物中から選ばれた少なくとも１種以上の弗化物０〜
３０モルチと、弗化アルミニウム０ル８ ００１〜５モルチとからなる赤外線透過ガラス。[Claims] Hafnium fluoride and/or zirconium fluoride 48
~70 mol of barium fluoride, 1 to 8 mol of at least one fluoride selected from fluorides of barium fluoride and thorium fluoride, and at least 1 to 8 mol of fluoride selected from fluorides of alkali metal elements. One or more fluorides 0~
An infrared transmitting glass made of aluminum fluoride of 0.30% and 8001~5% of aluminum fluoride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13587683A JPS6027621A (en) | 1983-07-27 | 1983-07-27 | Infrared transmission glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13587683A JPS6027621A (en) | 1983-07-27 | 1983-07-27 | Infrared transmission glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6027621A true JPS6027621A (en) | 1985-02-12 |
| JPS6350295B2 JPS6350295B2 (en) | 1988-10-07 |
Family
ID=15161832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13587683A Granted JPS6027621A (en) | 1983-07-27 | 1983-07-27 | Infrared transmission glass |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6027621A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0336280A2 (en) * | 1988-04-04 | 1989-10-11 | Gte Laboratories Incorporated | Method for preparing fluoride glasses |
| US4946490A (en) * | 1988-04-04 | 1990-08-07 | Gte Laboratories Incorporated | Method for preparing fluoride glasses |
| US5015281A (en) * | 1988-04-04 | 1991-05-14 | Gte Laboratories Incorporated | Method for preparing fluoride glasses |
| JPH0412035A (en) * | 1990-05-01 | 1992-01-16 | Natl Inst For Res In Inorg Mater | Rare earth element-containing fluoride glass |
| WO1994019292A1 (en) * | 1993-02-22 | 1994-09-01 | British Telecommunications Public Limited Company | Halide glass compositions |
-
1983
- 1983-07-27 JP JP13587683A patent/JPS6027621A/en active Granted
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0336280A2 (en) * | 1988-04-04 | 1989-10-11 | Gte Laboratories Incorporated | Method for preparing fluoride glasses |
| US4946490A (en) * | 1988-04-04 | 1990-08-07 | Gte Laboratories Incorporated | Method for preparing fluoride glasses |
| US5015281A (en) * | 1988-04-04 | 1991-05-14 | Gte Laboratories Incorporated | Method for preparing fluoride glasses |
| JPH0412035A (en) * | 1990-05-01 | 1992-01-16 | Natl Inst For Res In Inorg Mater | Rare earth element-containing fluoride glass |
| WO1994019292A1 (en) * | 1993-02-22 | 1994-09-01 | British Telecommunications Public Limited Company | Halide glass compositions |
| US5867515A (en) * | 1993-02-22 | 1999-02-02 | British Telecommunications Public Limited Company | Halide glass compositions |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6350295B2 (en) | 1988-10-07 |
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