CN1532163A - 轻冕光学玻璃 - Google Patents

轻冕光学玻璃 Download PDF

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Publication number
CN1532163A
CN1532163A CNA031174906A CN03117490A CN1532163A CN 1532163 A CN1532163 A CN 1532163A CN A031174906 A CNA031174906 A CN A031174906A CN 03117490 A CN03117490 A CN 03117490A CN 1532163 A CN1532163 A CN 1532163A
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China
Prior art keywords
optical glass
light crown
glass
crown optical
sif
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CNA031174906A
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CN1225424C (zh
Inventor
伦 罗
罗伦
李英花
吕代兵
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CDGM Glass Co Ltd
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Guangming Photoelectricity And Information Materials Co Ltd Chengdu
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Priority to CN 03117490 priority Critical patent/CN1225424C/zh
Publication of CN1532163A publication Critical patent/CN1532163A/zh
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    • 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
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/11—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen
    • C03C3/112—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen containing fluorine
    • C03C3/115—Glass compositions containing silica with 40% to 90% silica, by weight containing halogen or nitrogen containing fluorine containing boron

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  • 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

本发明提供了一种轻冕光学玻璃，它包括下列重量百分比组份：SiO2：45－60％；B2O3：10－25％；K2O：5－25％；K2SiF6：8－20％。它不含危害人体健康的KHF2和AS2O3。

Description

轻冕光学玻璃
技术领域
本发明涉及一种光学玻璃，特别是涉及一种轻冕光学玻璃。
背景技术
现有一种轻冕光学玻璃的配方，其重量百分比组成为：SiO2：58.0％；B2O3：13.0％；KHF2：21.7％；K2O7.0％；As2O3：0.3％，由于KHF2在常温下能吸收空气中水分，同时释放出HF蒸气，对人体眼睛、鼻子产生强烈刺激，危害人体健康，在高温熔制时，挥发严重，炉前光学常数波动大，玻璃条纹难消除，对耐火材料有强烈腐蚀作用，又由于使用剧毒原料AS2O3作为澄清剂，对人体及环境产生不良影响。
发明内容
本发明的目的是提供一种不含KHF2的轻冕光学玻璃。
本发明解决技术问题的技术方案是：一种轻冕光学玻璃，它包括下列重量百分比组份：SiO2：45-60％；B2O3：10-25％；K2O：5-25％；K2SiF6：8-20％。
本发明的有益效果是：通过调整发明的组份和各组份的含量大小，去掉了危害人体健康的KHF2和AS2O3，达到了环保的目的。
具体实施方式
SiO2和B2O3是玻璃生成体，SiO2具有较低的折射率和色散，但是它熔点高，随着含量的增加，玻璃的粘度也增大。B2O3的熔点低，能起助熔作用。通过实验，SiO2和B2O3合适的重量百分比含量分别为45-60％和10-25％。
K2O是作为助熔剂加入，可降低玻璃的析晶倾向。在本配方中，K2O会增加玻璃的折射率和色散。通过实验，K2O合适的重量百分比含量为5-25％。
K2SiF6主要为降低玻璃的折射率和色散而引入。但是，在实际生产中，随着温度的升高，时间的延长，K2SiF6中的SiF4挥发增大，玻璃液中K+离子浓度增加，反而使玻璃的折射率和色散增高。通过实验，K2SiF6合适的重量百分比含量为8-20％。
Sb2O3作为澄清剂引入，主要是在熔炼玻璃时消除气泡。通过实验，Sb2O3合适的重量百分比含量为0.05-0.3％。
本发明的5个实施例与原配方各项指标对比如下表，表中各配方的数值为重量百分比数值。
  1   2   3   4   5   原配方
  SiO2   54.0   55.0   55.0   54.0   55.5   58.0
  B2O3   18.0   17.5   18.7   18.95   16.4   13.0
  K2O   12.8   13.8   13.0   14.0   13.8   7.0
  K2SiF6   15.0   13.55   13.0   12.8   14.05   -
  KHF2   -   -   -   -   -   21.7
  As2O3   -   -   -   -   -   0.3
  Sb2O3   0.2   0.15   0.3   0.25   0.25
  Tg                       460℃---473℃   480℃
  Tf                       560℃---569℃   556℃
  Nd                       1.48640-1.48840
  Nf-Nc                       0.00686-0.00706
  a(20-120℃)                       92×10-7/℃   97×10-7/℃
  D                       2.43g/cm3   2.47g/cm3
由上表可以看出：去掉有毒原料KHF2后，适当调整各组成配比，产品各项技术指标满足标准，适合池炉生产。

Claims (2)

1.一种轻冕光学玻璃，它包括下列重量百分比组份：SiO2：45-60％；B2O3：10-25％；K2O：5-25％；K2SiF6：8-20％。
2.按照权利要求1所述的轻冕光学玻璃，其特征在于：所述光学玻璃的重量百分比组成还包括：Sb2O3：0.05-0.3％。
CN 03117490 2003-03-19 2003-03-19 轻冕光学玻璃 Expired - Lifetime CN1225424C (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03117490 CN1225424C (zh) 2003-03-19 2003-03-19 轻冕光学玻璃

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03117490 CN1225424C (zh) 2003-03-19 2003-03-19 轻冕光学玻璃

Publications (2)

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CN1532163A true CN1532163A (zh) 2004-09-29
CN1225424C CN1225424C (zh) 2005-11-02

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CN 03117490 Expired - Lifetime CN1225424C (zh) 2003-03-19 2003-03-19 轻冕光学玻璃

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104402217A (zh) * 2014-11-11 2015-03-11 湖北新华光信息材料有限公司 光学玻璃
CN109231820A (zh) * 2018-11-30 2019-01-18 湖北新华光信息材料有限公司 光学玻璃及其制备方法和光学元件

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104402217A (zh) * 2014-11-11 2015-03-11 湖北新华光信息材料有限公司 光学玻璃
CN104402217B (zh) * 2014-11-11 2016-08-31 湖北新华光信息材料有限公司 光学玻璃
CN109231820A (zh) * 2018-11-30 2019-01-18 湖北新华光信息材料有限公司 光学玻璃及其制备方法和光学元件

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