CN100575289C - Environmental protection optical glass - Google Patents

Environmental protection optical glass Download PDF

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Publication number
CN100575289C
CN100575289C CN200610021577A CN200610021577A CN100575289C CN 100575289 C CN100575289 C CN 100575289C CN 200610021577 A CN200610021577 A CN 200610021577A CN 200610021577 A CN200610021577 A CN 200610021577A CN 100575289 C CN100575289 C CN 100575289C
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CN
China
Prior art keywords
glass
environmental protection
content
optical glass
protection optical
Prior art date
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Ceased
Application number
CN200610021577A
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Chinese (zh)
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CN1903760A (en
Inventor
李英花
范铭
王东俊
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Chengdu Guangming Optoelectronics Co Ltd
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Chengdu Guangming Optoelectronics Co Ltd
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Application filed by Chengdu Guangming Optoelectronics Co Ltd filed Critical Chengdu Guangming Optoelectronics Co Ltd
Priority to CN200610021577A priority Critical patent/CN100575289C/en
Publication of CN1903760A publication Critical patent/CN1903760A/en
Application granted granted Critical
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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
    • C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
    • 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
    • C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
    • C03C3/066—Glass compositions containing silica with less than 40% silica by weight containing boron containing zinc

Abstract

The invention provides a kind of nd is that 1.55-1.75, Vd are the environmental protection optical glass of 40-60, and its weight percent consists of: SiO 2: 25-40%, B 2O 3: 3-15%, Al 2O 3: 1-5%, TiO 2: 0-10%, ZrO 2: 0-5%, BaO:25-40%, CaO:0-10%, SrO:0-5%, ZnO:0-10%, Li 2O:0-5% and Sb 2O 3: 0-1%.Do not contain in the opticglass of the present invention the very big Pb of environmental hazard, As and Cd, producting process difficulty is little, and is little to the infringement of melting unit and molding device, and optical constants such as bubble, striped are good and stable, are easy to produce in batches.

Description

Environmental protection optical glass
Technical field
The present invention relates to a kind of environmental protection optical glass, its specific refractory power (nd) is that 1.55-1.75, Abbe number (Vd) are 40-60.
Background technology
Opticglass is in order to reach ideal optical constant and fair all can the introducing the very big Pb of environmental hazard, As and Cd, form non-environmental protection optical glass, for example: in order to satisfy nd is that 1.55-1.75, Vd are the requirement of 40-60, and opticglass generally adopts SiO 2-B 2O 3-ZnO-PbO-RO series has been introduced the As of 0.1-0.5% again in order to eliminate glass blister, forms non-environmental protection glass.Along with social progress, design, to make environment-friendly type opticglass imperative.By the standard of Japanese Environmental Agency, Pb content should be less than 50PPm in the environmental protection optical glass, and As, Cd content should be less than 5PPm.Generally adopt SiO after the opticglass environmental protectionization now 2-B 2O 3-TiO 2-ZnO-BaO series, defectives such as heavy seed that glass forms and striped are difficult to solve, and have increased the melting technology difficulty, cause the possibility of batch process little.
Summary of the invention
It is that 1.55-1.75, Vd are the environmental protection optical glass of 40-60 that technical problem to be solved by this invention provides a kind of nd, and this opticglass is superior in quality and can produce in batches.
The technical scheme that technical solution problem of the present invention is adopted is: environmental protection optical glass, its weight percent consists of: SiO 2: 25-40%, B 2O 3: 3-15%, Al 2O 3: 1-5%, TiO 2: 0-10%, ZrO 2: 0-5%, BaO:25-40%, CaO:6-10%, SrO:0-5%, ZnO:0-10%, Li 2O:2-5% and Sb 2O 3: 0-1%.
The invention has the beneficial effects as follows: do not contain in the opticglass of the present invention the very big Pb of environmental hazard, As and Cd, and the nd of opticglass is that 1.55-1.75, Vd are 40-60.Producting process difficulty is little, and is little to the infringement of melting unit and molding device, and optical constants such as bubble, striped are good and stable, are easy to produce in batches.
Embodiment
SiO 2Be the main component of opticglass, the fusion situation strengthens with the increase of content, and chemical stability reduces and variation with content.SiO among the present invention 2Content (weight percent content, as follows) is 25-40%, is preferably 30-36%.
B 2O 3Be the main component of opticglass, the fusion situation improves with the increase of content, and chemical stability is variation with the increase of content.B among the present invention 2O 3Content is 3-15%, is preferably 3-10%.
Al 2O 3Can improve glass increased devitrification resistance and chemical stability,, increase the production difficulty, Al of the present invention when content can cause the melting difficulty greater than 5% the time 2O 3Content is 1-5%, is preferably 2-3%.
BaO is the main component that improves the optical glass optical constant, and glass increased devitrification resistance and stability increase variation with content, can increase technology difficulty, and BaO content of the present invention is 25-40%, is preferably 30-37%.
CaO and SrO can improve the optical constant of opticglass, and its function is similar with BaO, adopt CaO and SrO partly to replace BaO, can improve glass increased devitrification resistance and chemical stability, but can increase the fusion difficulty.The content of CaO of the present invention is 0-10%, is preferably 5-8%; SrO content is 0-5%, is preferably 3%.
The content sum of above-mentioned BaC, SrO and CaO is 35-50%.
ZnO can improve the glass light mathematic(al) constant, improves the glass increased devitrification resistance, but easily forms the glass small bubbles, causes technology difficulty.ZnO content of the present invention is 0-10%, is preferably 4-10%.
ZrO 2Can improve the increased devitrification resistance and the chemical stability of glass, and can improve glass refraction and reduce Abbe number, its content is no more than 5%, is preferably 3-4%.
TiO 2Can effectively improve glass refraction and reduce Abbe number, can absorb shortwave in glass, its content is 0-10%, is preferably 3-8%.
Li 2O can increase the fusion effect, but can reduce chemical stability, and its content is 0-5%, is preferably 2%.
Sb 2O 3Be glass fining agent, when with Sb 2O 3After introducing in the glass simultaneously with nitrate, help the elimination of bubble, its content is 0-1%, is preferably 0.3%.
Production method of the present invention adopts ordinary method production, and its step comprises: weighing opticglass raw material, and then on pond platinum continuous smelting tank furnace, 1100-1200 ℃ of fusing, the 1300-1400 clarification, 1000 ℃ of-1050 ℃ of homogenizing moulding obtain product.
Embodiment: table 1 is 8 embodiment of the present invention and 2 comparative examples.
Figure C20061002157700051
The present invention is little at pond platinum stove producting process difficulty, and is little to the infringement of melting unit and molding device, and bubble, striped are good and stable, and the glass that optical constant is stable is easy to produce in batches.Glass sample carries out the physical and chemical performance test by standard GB 796216-87, and the glass chemistry excellent in stability that records, harmful substance contents meet the corresponding index of Pb, As, Cd of environmental protection glass regulation.

Claims (3)

1, environmental protection optical glass is characterized in that: its weight percent consists of: SiO 2: 25-40%, B 2O 3: 3-15%, Al 2O 3: 1-5%, TiO 2: 0-10%, ZrO 2: 0-5%, BaO:25-40%, CaO:6-10%, SrO:0-5%, ZnO:0-10%, Li 2O:2-5% and Sb 2O 3: 0-1%.
2, environmental protection optical glass as claimed in claim 1 is characterized in that: the weight percent content sum of described BaO, SrO and CaO is 35-50%.
3, environmental protection optical glass as claimed in claim 1 is characterized in that: its weight percent consists of: SiO 2: 30-36%, B 2O 3: 3-10%, Al 2O 3: 2-3%, TiO 2: 3-8%, ZrO 2: 3-4%BaO:30-37%, CaO:6-8%; SrO:3%, ZnO:4-10%, Li 2O:2% and Sb 2O 3: 0.3%.
CN200610021577A 2006-08-10 2006-08-10 Environmental protection optical glass Ceased CN100575289C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200610021577A CN100575289C (en) 2006-08-10 2006-08-10 Environmental protection optical glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200610021577A CN100575289C (en) 2006-08-10 2006-08-10 Environmental protection optical glass

Publications (2)

Publication Number Publication Date
CN1903760A CN1903760A (en) 2007-01-31
CN100575289C true CN100575289C (en) 2009-12-30

Family

ID=37673146

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200610021577A Ceased CN100575289C (en) 2006-08-10 2006-08-10 Environmental protection optical glass

Country Status (1)

Country Link
CN (1) CN100575289C (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101139166B (en) * 2007-08-21 2010-12-22 成都光明光电股份有限公司 Environment protection dense-crown optical glass and production technique thereof
CN101863617B (en) * 2010-05-31 2013-07-10 成都光明光电股份有限公司 Optical glass and optical element
DE102013011918B4 (en) 2013-07-17 2017-01-12 Schott Ag Optical glass and its use
CN105693080B (en) * 2014-11-28 2019-01-25 成都光明光电股份有限公司 Environmentally friendly dense barium flint optical glass and optical element
CN107098583B (en) * 2017-05-04 2019-10-29 湖北戈碧迦光电科技股份有限公司 A kind of optical glass
CN107162415B (en) * 2017-05-04 2019-11-05 湖北戈碧迦光电科技股份有限公司 A kind of optical glass
CN110482854A (en) * 2019-09-30 2019-11-22 成都光明光电股份有限公司 Optical glass, its manufactured optical precast product, optical element and optical instrument
CN111320382A (en) * 2020-03-06 2020-06-23 成都光明光电股份有限公司 Optical glass

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20070131

Assignee: Shenzhen Feng Cheng Powerise Technology Co. Ltd.

Assignor: Chengdu Guangming Optoelectronics Co., Ltd.

Contract record no.: 2017440020107

Denomination of invention: Environmental protection optical glass

Granted publication date: 20091230

License type: Exclusive License

Record date: 20171225

EE01 Entry into force of recordation of patent licensing contract
IW01 Full invalidation of patent right

Decision date of declaring invalidation: 20181010

Decision number of declaring invalidation: 37402

Granted publication date: 20091230

IW01 Full invalidation of patent right