CN100366559C - High refractivity lanthanum optical glass LaSF010 - Google Patents

High refractivity lanthanum optical glass 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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CN
China
Prior art keywords
optical glass
lasf010
high refractivity
pbo
temperature
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Expired - Fee Related
Application number
CNB03115977XA
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Chinese (zh)
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CN1532161A (en
Inventor
王佩珍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xinhu Glass Co., Ltd., Shanghai
Original Assignee
XINHU GLASS WORKS SHANGHAI
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Priority to CNB03115977XA priority Critical patent/CN100366559C/en
Publication of CN1532161A publication Critical patent/CN1532161A/en
Application granted granted Critical
Publication of CN100366559C publication Critical patent/CN100366559C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • C03C3/04—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

Abstract

The present invention discloses high refractivity lanthanide optical glass LaSF010 and a production process thereof. The high refractivity lanthanide optical glass LaSF010 comprises components: 3 to 5 wt% of SiO2, 22 to 26 wt% of B2O3, 29 to 35 wt% of La2O3, 7 to 12% of Nb2O5, 4 to 6.5 wt% of ZrO2, 5 to 6.5 wt% of Y2O3, 1.5 to 3.0 wt% of ZnO, 0 to 5 wt% of Ta2O5, 4.5 to 11 wt% of PbO, 1 to 2 wt% of TiO2, 0 to 8 wt% of Gb2O3 and 0 to 2.5 wt% of WO3, the components are mixed, the mixture is smelted at temperature of 1340 DEG C to 1360 DEG C and is formed, and annealing treatment is carried out about nine days at temperature of 600 DEG C to 650 DEG C. The present invention is the high refractivity and color dispersion lanthanide glass used for manufacturing advanced cameras, advanced precise instruments, etc.

Description

High-refractivity lanthanide optical glass LaSF 010
Affiliated technical field
The present invention is trade mark in the big class of heavy-lanthanide flint glass, be to make digital camera, Digital Video, CDROM, scanner and the essential supplementary material of other digital photoelectric product read-write lens, also be widely used in the diffusing group of the lanthanides glass of high refractive index high luminance relay such as Aeronautics and Astronautics simultaneously.
Background technology
At present, LaSF 010It consists of flint optical glass with heavy lanthanum:
SiO 2-B 2O 3-La 2O 3-Nb 2O 5-ZrO 2-Y 2O 3-Ta 2O 5-PbO-TiO 2
Its cost height, crystallization property, processability and refringence.
Summary of the invention
The object of the present invention is to provide a kind of optical constant (nd, vd), bubble, the requirement of striped conformance with standard, the group of the lanthanides glass of crystallization property, the high chromatic dispersion of high refractive index that processability is good.
The present invention is at SiO 2, B 2O 3, La 2O 3, Nb 2O 5, ZrO 2, Ta 2O 5, PbO, TiO 2Use Gd on the system-based 2O 3, PbO replaces Ta 2O 5
High-refractivity lanthanide glass of the present invention, amount is SiO by weight percentage 23-5.5%, B 2O 321-27%, La 2O 326-36%, Nb 2O 55-12%, ZrO 23-6.5%, Y 2O 35-6.5%, ZnO1.5-4.O%, Ta 2O 50-5%, PbO4.5-11%, TiO 21-2%, Gd 2O 30-9%, WO 30-2.5%.
Adopt above-mentioned prescription, make heavy-lanthanide flint glass LaSF 010In time, mix each component earlier, heats in platinum crucible molybdenum filament rod electric furnace in 1340-1360 ℃ and found into glass.Adopt leakage material technology to pull into pole or bulk then, through guipure black annealing, quick-fried one-tenth desired length.Above-mentioned glass is entered annealing furnace be warming up to annealing temperature 600-650 ℃ of guarantor 10-20H gradually, lower the temperature gradually about 8 days to room temperature then.
There is not AS among the present invention 2O 3, Sb 2O 3Finings.
Use Gd among the present invention 2O 3, PbO replaces most of Ta 2O 5, reduce the raw materials cost of filling a prescription, its glass quality performance there is not influence.
Embodiment
Below, the present invention is further illustrated to use embodiment again:
The component of embodiments of the invention 1-3, processing parameter, performance perameter such as following table:
Component Technical parameter Embodiment 1 Embodiment 2 Embodiment 3
SiO 2 (weight part) 3.45 3.33 4.70
B 2O 3 (weight part) 25.11 24.53 22.75
La 2O 3 (weight part) 35.10 36.26 31.20
Ta 2O 5 (weight part) 4.90 4.81 0.51
Y 2O 3 (weight part) 5.61 5.51 5.70
ZrO 2 (weight part) 5.80 5.81 4.65
Nb 2O 5 (weight part) 10.70 9.85 7.58
PbO (weight part) 5.85 6.50 9.23
TiO 2 (weight part) 1.70 1.65 2.00
ZnO (weight part) 1.70 1.75 2.50
WO 3 (weight part) 1.62
Gd 2O 3 (weight part) 7.56
Add up to (weight part) 99.92 100 100
Glass melting temperature (℃) 1360 1360 1360
Charge temperature (℃) 1340 1340 1340
Tapping temperature (℃) 1170 1170 1170
Annealing temperature (℃) 630 630 630
nd 1.8329 1.8340 1.8344
vd 37.37 37.32 37.43
The manufacturing process program of above-mentioned each example of the present invention conforms to substantially, just selects prescription system different.Above example is all in 300CC platinum crucible, molybdenum filament rod electric furnace heating melting.
To add behind the each component uniform mixing in the 300CC platinum crucible, in the melting of molybdenum filament rod electric furnace internal heating, 1360 ℃ of insulations of temperature 4-5 hour, reduce to then in 1170 ℃ of swages that pour into preheating, enter with nichrome wire heating anneal stove and anneal, 630 ℃ are incubated 4 hours, are cooled to 350 ℃ with 10 ℃/H and close electricity, by the time to taking out glass near room temperature.This trade mark can drop into 18 and be raised to 50 liter capacity platinum crucibles at present, at molybdenum bar heating electrosmelting, drops into and produces in batches.

Claims (3)

1. high-refractivity lanthanide optical glass LaSF 010, it is characterized in that the component of measuring by weight percentage is SiO 23-5.5%, B 2O 321-27%, La 2O 326-36%, Nb 2O 55-12%, ZrO 23-6.5%, Y 2O 35-6.5%, ZnO 1.5-4.0%, Ta 2O 50-5%, PbO 4.5-11%, TiO 21-2%, Gd 2O 30-9%, WO 30-2.5%.
2. a kind of high-refractivity lanthanide optical glass LaSF according to claim 1 010, it is characterized in that SiO wherein 23-5.5%, B 2O 321.5-26.5%, La 2O 326.5-36.0%, Nb 2O 55-10.5%, ZrO 23.5-6%, Y 2O 35.0-6.5%, ZnO 1.5-3.5%, Ta 2O 50-1%, WO 31.5-2.5%, Gd 2O 35-8.5%, PbO 6.5-10%, TiO 21-2%.
3. high-refractivity lanthanide optical glass LaSF as claimed in claim 1 010Production technique, it is characterized in that: will add behind the each component uniform mixing in the 300CC platinum crucible, in the melting of molybdenum filament rod electric furnace internal heating, 1360 ℃ of insulations of temperature 4-5 hour, reduce to then in 1170 ℃ of swages that pour into preheating, enter with nichrome wire heating anneal stove and anneal, 630 ℃ of insulations 4 hours, be cooled to 350 ℃ with 10 ℃/H and close electricity, by the time to taking out glass near room temperature.
CNB03115977XA 2003-03-24 2003-03-24 High refractivity lanthanum optical glass LaSF010 Expired - Fee Related CN100366559C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB03115977XA CN100366559C (en) 2003-03-24 2003-03-24 High refractivity lanthanum optical glass LaSF010

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB03115977XA CN100366559C (en) 2003-03-24 2003-03-24 High refractivity lanthanum optical glass LaSF010

Publications (2)

Publication Number Publication Date
CN1532161A CN1532161A (en) 2004-09-29
CN100366559C true CN100366559C (en) 2008-02-06

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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 (en) * 2007-09-25 2014-09-24 株式会社オハラ Optical glass
CN102401910A (en) * 2010-09-17 2012-04-04 晶炼科技股份有限公司 Method for preparing optical coating material and optical coating material

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 (en) * 1983-08-25 1985-03-14 Nippon Kogaku Kk <Nikon> Glass having high refractive index and low despersion
CN1244851A (en) * 1997-01-29 2000-02-16 康宁股份有限公司 Glasses with very high refractive index
CN1377847A (en) * 2001-03-27 2002-11-06 保谷株式会社 Optical glass and optical part

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 (en) * 1983-08-25 1985-03-14 Nippon Kogaku Kk <Nikon> Glass having high refractive index and low despersion
CN1244851A (en) * 1997-01-29 2000-02-16 康宁股份有限公司 Glasses with very high refractive index
CN1377847A (en) * 2001-03-27 2002-11-06 保谷株式会社 Optical glass and optical part

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
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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C06 Publication
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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

LIC Patent licence contract for exploitation submitted for record

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

Name of requester: DANYANG HONGYE ELECTRONICS CO., LTD.

Effective date: 20090904

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080206

Termination date: 20120324