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CN100366559C - 高折射率镧系光学玻璃LaSF010 - Google Patents

高折射率镧系光学玻璃LaSF010 Download PDF

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Publication number
CN100366559C
CN100366559C CNB03115977XA CN03115977A CN100366559C CN 100366559 C CN100366559 C CN 100366559C CN B03115977X A CNB03115977X A CN B03115977XA CN 03115977 A CN03115977 A CN 03115977A CN 100366559 C CN100366559 C CN 100366559C
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optical glass
lasf010
high refractivity
pbo
temperature
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CN1532161A (zh
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王佩珍
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Xinhu Glass Co., Ltd., Shanghai
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XINHU GLASS WORKS SHANGHAI
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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
    • C03C3/062—Glass compositions containing silica with less than 40% silica by weight
    • C03C3/07—Glass compositions containing silica with less than 40% silica by weight containing lead
    • C03C3/072—Glass compositions containing silica with less than 40% silica by weight containing lead containing boron
    • C03C3/074—Glass compositions containing silica with less than 40% silica by weight containing lead containing boron containing zinc

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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

本发明公开了一种高折射率镧系光学玻璃LaSF010及其生产工艺，按重量百分比计量的组份为SiO2 3-5%、B2O3 22-26%、La2O3 29-35%、Nb2O5 7-12%、ZrO24-6.5%、Y2O3 5-6.5%、ZnO 1.5-3.0%、Ta2O5 0-5%、PbO 4.5-11%、TiO2 1-2%、Gd2O3 0-8%、WO3 0-2.5%，将上述组分混合，经1340-1360℃熔制、1170℃成型，再经600-650℃，退火处理9天左右。是用于制造高级照相机及高级精密仪器等折射率高色散镧系玻璃。

Description

高折射率镧系光学玻璃LaSF010
所属技术领域
本发明是重镧火石玻璃大类中一个牌号，是制造数码相机、数码摄像机、CDROM、扫描仪及其他数码光电产品读写镜头必需的配套材料，同时也被广泛地应用于航空、航天等高折射率高色散镧系玻璃。
背景技术
目前，LaSF010重镧火石光学玻璃其组成为：
SiO2-B2O3-La2O3-Nb2O5-ZrO2-Y2O3-Ta2O5-PbO-TiO2
它成本高，析晶性能、成型性能和折射率差。
发明内容
本发明的目的在于提供一种光学常数(nd、vd)，气泡、条纹符合标准要求，析晶性能、成型性能好的高折射率高色散的镧系玻璃。
本发明在SiO2、B2O3、La2O3、Nb2O5、ZrO2、Ta2O5、PbO、TiO2系统基础上用Gd2O3、PbO取代Ta2O5。
本发明的高折射率镧系玻璃，按重量百分比计量为SiO2 3-5.5％、B2O321-27％、La2O3 26-36％、Nb2O5 5-12％、ZrO2 3-6.5％、Y2O3 5-6.5％、ZnO1.5-4.O％、Ta2O5 0-5％、PbO4.5-11％，TiO2 1-2％、Gd2O3 0-9％、WO3 0-2.5％。
采用上述配方，制造重镧火石玻璃LaSF010时先将各组份混合均匀，于1340-1360℃在铂金坩埚钼丝棒电炉中加热熔制成玻璃。然后采用漏料工艺拉成圆棒或块状，经过网带粗退火，爆成所需长度。将上述玻璃进入退火炉逐渐升温至退火温度600-650℃保10-20H，然后逐渐降温8天左右至室温。
本发明中无AS2O3、Sb2O3澄清剂。
本发明中用Gd2O3、PbO取代大部分Ta2O5，降低配方的原料成本，对其玻璃质量性能无影响。
具体实施方式
下面，再用实施例对本发明作进一步的说明：
本发明的实施例1-3的组份、工艺参数、性能参数如下表：
  组份   技术参数   实施例1   实施例2   实施例3
  SiO<sub>2</sub>   (重量份)   3.45   3.33   4.70
  B<sub>2</sub>O<sub>3</sub>   (重量份)   25.11   24.53   22.75
  La<sub>2</sub>O<sub>3</sub>   (重量份)   35.10   36.26   31.20
  Ta<sub>2</sub>O<sub>5</sub>   (重量份)   4.90   4.81   0.51
  Y<sub>2</sub>O<sub>3</sub>   (重量份)   5.61   5.51   5.70
  ZrO<sub>2</sub>   (重量份)   5.80   5.81   4.65
  Nb<sub>2</sub>O<sub>5</sub>   (重量份)   10.70   9.85   7.58
  PbO   (重量份)   5.85   6.50   9.23
  TiO<sub>2</sub>   (重量份)   1.70   1.65   2.00
  ZnO   (重量份)   1.70   1.75   2.50
  WO<sub>3</sub>   (重量份)   1.62
  Gd<sub>2</sub>O<sub>3</sub>   (重量份)   7.56
  合计   (重量份)   99.92   100   100
  熔制温度(℃)   1360   1360   1360
  加料温度(℃)   1340   1340   1340
  出炉温度(℃)   1170   1170   1170
  退火温度(℃)   630   630   630
  nd   1.8329   1.8340   1.8344
  vd   37.37   37.32   37.43
本发明的上述各实例的制造工艺程序基本相符，只是选择配方系统不一样。以上实例均在300CC铂金坩埚、钼丝棒电炉加热熔炼。
将各组份均匀混合后加入300CC铂埚内，在钼丝棒电炉内加热熔炼，温度1360℃保温4-5小时，然后降至1170℃浇入预热的铁模中，进入用电热丝加热退火炉进行退火，630℃保温4小时，以10℃/H降温至350℃闭电，待到至接近室温取出玻璃。目前本牌号可以投入18升到50升容积铂坩埚，在钼棒加热电炉熔炼，投入批量生产。

Claims (3)

1.一种高折射率镧系光学玻璃LaSF010，其特征是按重量百分比计量的组份为SiO23-5.5％、B2O3 21-27％、La2O3 26-36％、Nb2O5 5-12％、ZrO2 3-6.5％、Y2O3 5-6.5％、ZnO 1.5-4.0％、Ta2O5 0-5％、PbO 4.5-11％、TiO2 1-2％、Gd2O3 0-9％、WO3 0-2.5％。
2.根据权利要求1所述的一种高折射率镧系光学玻璃LaSF010，其特征在于其中的SiO2 3-5.5％、B2O3 21.5-26.5％、La2O3 26.5-36.0％、Nb2O55-10.5％、ZrO2 3.5-6％、Y2O3 5.0-6.5％、ZnO 1.5-3.5％、Ta2O5 0-1％、WO3 1.5-2.5％、Gd2O3 5-8.5％、PbO 6.5-10％、TiO2 1-2％。
3.如权利要求1所述的高折射率镧系光学玻璃LaSF010的生产工艺，其特征是：将各组份均匀混合后加入300CC铂埚内，在钼丝棒电炉内加热熔炼，温度1360℃保温4-5小时，然后降至1170℃浇入预热的铁模中，进入用电热丝加热退火炉进行退火，630℃保温4小时，以10℃/H降温至350℃闭电，待到至接近室温取出玻璃。
CNB03115977XA 2003-03-24 2003-03-24 高折射率镧系光学玻璃LaSF010 Expired - Fee Related CN100366559C (zh)

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5594807B2 (ja) 2007-09-25 2014-09-24 株式会社オハラ 光学ガラス
CN102401910A (zh) * 2010-09-17 2012-04-04 晶炼科技股份有限公司 制备光学镀膜材料的方法及光学镀膜材料

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS565345A (en) * 1979-06-28 1981-01-20 Nippon Kogaku Kk <Nikon> Optical glass
US4439531A (en) * 1981-07-30 1984-03-27 Schott Glaswerke CdO-ThO2 -Free, highly refractive optical glass
US4472511A (en) * 1981-09-25 1984-09-18 Schott Glaswerke Highly refractive, ThO2 -free optical glasses having refractive indices of 1.86-1.94 and Abbe-index numbers greater than or equal to 30
JPS6046948A (ja) * 1983-08-25 1985-03-14 Nippon Kogaku Kk <Nikon> 高屈折率低分散光学ガラス
CN1244851A (zh) * 1997-01-29 2000-02-16 康宁股份有限公司 高折射率玻璃
CN1377847A (zh) * 2001-03-27 2002-11-06 保谷株式会社 光学玻璃与光学部件

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS565345A (en) * 1979-06-28 1981-01-20 Nippon Kogaku Kk <Nikon> Optical glass
US4439531A (en) * 1981-07-30 1984-03-27 Schott Glaswerke CdO-ThO2 -Free, highly refractive optical glass
US4472511A (en) * 1981-09-25 1984-09-18 Schott Glaswerke Highly refractive, ThO2 -free optical glasses having refractive indices of 1.86-1.94 and Abbe-index numbers greater than or equal to 30
JPS6046948A (ja) * 1983-08-25 1985-03-14 Nippon Kogaku Kk <Nikon> 高屈折率低分散光学ガラス
CN1244851A (zh) * 1997-01-29 2000-02-16 康宁股份有限公司 高折射率玻璃
CN1377847A (zh) * 2001-03-27 2002-11-06 保谷株式会社 光学玻璃与光学部件

Non-Patent Citations (2)

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Title
稀土光学玻璃的研究和探讨. 郑国培.玻璃与搪瓷，第3期. 1973 *
镧玻璃的化学稳定性. 高熙英.吉林大学自然科学学报，第4期. 1995 *

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Address after: No. 720, Huan Cheng Road, Shanghai, Jiading District

Patentee after: Xinhu Glass Co., Ltd., Shanghai

Address before: No. 720, Huan Cheng Road, Shanghai, Jiading District

Patentee before: Xinhu Glass Works Shanghai

C56 Change in the name or address of the patentee

Owner name: SHANGHAI XINHU GLASS CO., LTD.

Free format text: FORMER NAME: SHANGHAI XINHU GLASS FACTORY

EE01 Entry into force of recordation of patent licensing contract

Assignee: Danyang Hongye Electronics Co., Ltd.

Assignor: Xinhu Glass Co., Ltd., Shanghai

Contract fulfillment period: 2009.7.15 to 2015.7.14 contract change

Contract record no.: 2009310000190

Denomination of invention: High refractive index lanthanide optical glass LaSF010

Granted publication date: 20080206

License type: Exclusive license

Record date: 2009.9.4

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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.7.15 TO 2015.7.14; CHANGE OF CONTRACT

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