CN1433984A - Leadless and arsenicumless optical glass - Google Patents
Leadless and arsenicumless optical glass Download PDFInfo
- Publication number
- CN1433984A CN1433984A CN 03117437 CN03117437A CN1433984A CN 1433984 A CN1433984 A CN 1433984A CN 03117437 CN03117437 CN 03117437 CN 03117437 A CN03117437 A CN 03117437A CN 1433984 A CN1433984 A CN 1433984A
- Authority
- CN
- China
- Prior art keywords
- glass
- free
- optical glass
- arsenic
- arsenicumless
- 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
- 239000005304 optical glass Substances 0.000 title claims abstract description 19
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 8
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 6
- 239000000470 constituent Substances 0.000 claims description 5
- 239000011521 glass Substances 0.000 abstract description 37
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 230000003245 working effect Effects 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 229910052785 arsenic Inorganic materials 0.000 description 3
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 238000005352 clarification Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000004031 devitrification Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000006025 fining agent Substances 0.000 description 1
- 239000005308 flint glass Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
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
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/089—Glass compositions containing silica with 40% to 90% 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
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
The present invention provides a leadless arsenicumless optical glass, its composition includes (wt%) 0.1-5% of Tio2, 25-45% of SiO2, 5-20% of B2O3 and 38-52% of BaO, and its Abbe number is 55-61, and its production cost is less than that of correspondent lead-containing and arsnic-bearing glass. It has good melting and working properties, has good chemical stability, and is suitable for untinuous production in optical glass tank furnace.
Description
Technical field
The present invention relates to a kind of opticglass, particularly relate to a kind of Pb-free and arsenic-free optical glass.
Background technology
Because glass ingredient PbO and As
2O
3Be restricted as environmental contaminants, optical device manufacturer is the numerous and confused environmental protection glass that requires to have the lead and arsenic free of various optical properties of the producer of developed country especially.By the standard of Japanese Environmental Agency, the standard of environmental protection optical glass is that lead content is no more than 50ppm in the glass, and the content of arsenic, cadmium is no more than 5ppm.Before nineteen nineties, the part dense crown has often added PbO because of the needs of optical property, for aborning de-bubble, obtains bubble-free high quality glass, has then added As
2O
3If substitute PbO or As with a kind of component simply
2O
3, then product generally can not reach by PbO or As
2O
3The required optical technology performance that restricts.Therefore, research and the improvement that glass is formed is necessary.Put down in writing a kind of dense-crown optical glass such as existing prescription, its weight percentage composition is: SiO
2: 28～38; B
2O
3: 9～14; BaO:40～52; Al
2O
3: 3～7; ZnO:O.5～3.5; Sb
2O
3: 0～1.Though above-mentioned prescription satisfies the environmental protection standard of lead and arsenic free, in actual production, the Abbe number of product does not reach technological standard, thereby still has to add a certain amount of PbO and improve chromatic dispersion to satisfy the Abbe number standard.
Summary of the invention
The purpose of this invention is to provide a kind of Pb-free and arsenic-free optical glass, its Abbe number is between 55～61.
The technical scheme of technical solution problem of the present invention is: the percentage by weight of the constituent of described Pb-free and arsenic-free optical glass forms and comprises 0.1～5% TiO
225～45% SiO
25～20% B
2O
3With 38～52% BaO.
The invention has the beneficial effects as follows: a kind of Pb-free and arsenic-free optical glass is provided, Abbe number is between 55～61, and its manufacturing cost is not higher than corresponding flint glass, has good fusing and processing characteristics, good chemical stability, and be suitable in the opticglass tank furnace, carrying out continuous production.
Embodiment
SiO
2And B
2O
3Be that glass generates body, the meltdown property of glass is along with B
2O
3The increase of content and improving is along with SiO
2Content increase and worsen and B
2O
3Too high levels also can reduce the chemical stability of glass.The glass that contains balanced proportions among the present invention generates body, wherein SiO
2Weight percent content be 25～45%, B
2O
3Be 5～20%, so the meltdown property of glass and chemical property are fine.
In the present invention, the weight percent content of BaO is 38～52%, and this is in order to obtain desirable ranges of indices of refraction, and particularly its content and glass generate body SiO
2And B
2O
3Contain amount phase equilibrium, make the meltdown property of glass good.
Al
2O
3Thereby an amount of introducing low temperature viscosity that can increase glass reduce the tendency towards devitrification of glass, improve chemical stability, heat endurance and mechanical strength.Al
2O
3Can also alleviate melten glass liquid to the erosion of refractory material, so that glass is suitable for producing continuously at the optical glass tank furnace, but Al
2O
3Too high levels can make the meltability of glass reduce, so Al
2O
3Preferred weight percent content be 0.5～8%.
ZnO and CaO can reduce the coefficient of expansion of glass, improve the chemically stable ability.The present invention uses these two kinds of oxides also to play a part to reduce the glass high temperature viscosity, so that the striped of glass is easy to eliminate, the percentage by weight sum of ZnO and CaO should be no more than 6%.
Li
2O and Na
2O has significant fluxing action, and can suitably reduce the softening temperature of glass, and their preferred weight percent contents are no more than 5% and 1% respectively.
ZrO
2Can improve the crystallization property of glass, improve the alkali resistance of glass, but its too high levels will make the temperature of fusion of glass raise.The present invention is not influencing under the prerequisite of glass melting performance substantially, uses to be no more than 3% weight percent content.
Add TiO among the present invention
2Mainly be in order to reduce the Abbe number of glass, but because its refractive index and dispersive influence are obvious, so usage quantity must strictly be controlled.TiO
2An amount of resistance to acid that helps improving glass of using, excessive use has detrimentally affect to glass colour, so among the present invention, TiO
2Weight percent content be no more than 5%.
Sb
2O
3Use as fining agent, the bubble in the glass metal is well eliminated, be particularly suited for the production of optical glass tank furnace, its suitable weight percent content is no more than 1%.
For making glass colour good, need to use to contain Fe
2O
3The raw material that impurity is few, especially TiO
2Fe in the raw material
2O
3Content is less than 10ppm.
Make 6 glass samples of the present invention, and prepare 2 of comparative examples, during glass composition situation and key property comparative data are listed in the table below:
Glass sample in the last table makes according to following program: admixtion drops into platinum crucible behind thorough mixing, and 1200-1400 ℃ of melt raw material 2 ~ 5 hours, 1300-1450 ℃ of clarification homogenizing was after 3 ~ 4 hours, and coming out of the stove for 1150-1300 ℃ is cast in the mold.
On porcelain platinum continuous smelting tank furnace, carry out continuous smelting, 1050-1200 ℃ of melt-blended material, 1200-1380 ℃ of clarification, 1100 ℃ of left and right sides homogenizing discharging moulding promptly obtain striped bubble good quality production.Get glassy product and carry out the physical and chemical performance test by standard GB/T17192, record the glass chemistry excellent in stability, every index is suitable with original products containing lead.
Use plant and instrument such as ICP plasma emission spectrometer that the glass ingredient of the embodiment 1 of the present invention's prescription is analyzed, record in the glass that As content is less than 5ppm, Cd content is less than 5ppm, and Pb content is less than 20ppm.
Claims (4)
1. Pb-free and arsenic-free optical glass, the percentage by weight of its constituent form and comprise 0.1～5% TiO
225～45% SiO
25～20% B
2O
3With 38～52% BaO.
2. according to the described Pb-free and arsenic-free optical glass of claim 1, it is characterized in that: the percentage by weight of the constituent of described Pb-free and arsenic-free optical glass forms and also comprises 0.5～8% Al
2O
3
3. according to claim 1 or 2 described Pb-free and arsenic-free optical glass, it is characterized in that: the percentage by weight of the constituent of described Pb-free and arsenic-free optical glass forms and also comprises and be no more than 7% CaO; Be no more than 3% ZrO
2Be no more than 1% Sb
2O
3Be no more than 5% Li
2O; Be no more than 8% ZnO and be no more than 1% Na
2O.
4. according to the described Pb-free and arsenic-free optical glass of claim 1, it is characterized in that: the percentage by weight of the constituent of described Pb-free and arsenic-free optical glass forms and comprises 0.1～5% TiO
225～45% SiO
25～20% B
2O
338～52% BaO; 0.5～8% Al
2O
3With the CaO that is no more than 7%; Be no more than 3% ZrO
2Be no more than 1% Sb
2O
3Be no more than 5% Li
2O; Be no more than 8% ZnO and be no more than 1% Na
2O.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03117437 CN1237019C (en) | 2003-03-12 | 2003-03-12 | Leadless and arsenicumless optical glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03117437 CN1237019C (en) | 2003-03-12 | 2003-03-12 | Leadless and arsenicumless optical glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1433984A true CN1433984A (en) | 2003-08-06 |
| CN1237019C CN1237019C (en) | 2006-01-18 |
Family
ID=27634358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03117437 Expired - Lifetime CN1237019C (en) | 2003-03-12 | 2003-03-12 | Leadless and arsenicumless optical glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1237019C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108409132A (en) * | 2018-03-29 | 2018-08-17 | 成都光明光电股份有限公司 | Environmentally Friendly Optical Glass and Optical Components |
| CN110526575A (en) * | 2019-09-30 | 2019-12-03 | 成都光明光电股份有限公司 | A kind of optical glass, optical precast product, optical element and optical instrument |
| CN111204972A (en) * | 2020-03-06 | 2020-05-29 | 成都光明光电股份有限公司 | Optical glass, glass preform, optical element and optical instrument |
| CN111204970A (en) * | 2020-03-06 | 2020-05-29 | 成都光明光电股份有限公司 | Optical glass, glass preform and optical element |
| CN111320381A (en) * | 2020-03-06 | 2020-06-23 | 成都光明光电股份有限公司 | Optical glass, glass preform and optical element |
| CN111320383A (en) * | 2020-03-06 | 2020-06-23 | 成都光明光电股份有限公司 | Optical glass, glass preform, optical element and optical instrument |
| CN111333316A (en) * | 2020-03-06 | 2020-06-26 | 成都光明光电股份有限公司 | Optical glass, glass preform, optical element and optical instrument |
| CN117466531A (en) * | 2023-11-13 | 2024-01-30 | 湖北戈碧迦光电科技股份有限公司 | An environmentally friendly high-transparency H-ZK glass and its preparation method |
-
2003
- 2003-03-12 CN CN 03117437 patent/CN1237019C/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108409132A (en) * | 2018-03-29 | 2018-08-17 | 成都光明光电股份有限公司 | Environmentally Friendly Optical Glass and Optical Components |
| CN108409132B (en) * | 2018-03-29 | 2021-09-14 | 成都光明光电股份有限公司 | Environment-friendly optical glass and optical element |
| CN113511809A (en) * | 2018-03-29 | 2021-10-19 | 成都光明光电股份有限公司 | Environment-friendly optical glass and optical element |
| CN110526575A (en) * | 2019-09-30 | 2019-12-03 | 成都光明光电股份有限公司 | A kind of optical glass, optical precast product, optical element and optical instrument |
| CN111204972A (en) * | 2020-03-06 | 2020-05-29 | 成都光明光电股份有限公司 | Optical glass, glass preform, optical element and optical instrument |
| CN111204970A (en) * | 2020-03-06 | 2020-05-29 | 成都光明光电股份有限公司 | Optical glass, glass preform and optical element |
| CN111320381A (en) * | 2020-03-06 | 2020-06-23 | 成都光明光电股份有限公司 | Optical glass, glass preform and optical element |
| CN111320383A (en) * | 2020-03-06 | 2020-06-23 | 成都光明光电股份有限公司 | Optical glass, glass preform, optical element and optical instrument |
| CN111333316A (en) * | 2020-03-06 | 2020-06-26 | 成都光明光电股份有限公司 | Optical glass, glass preform, optical element and optical instrument |
| CN111333316B (en) * | 2020-03-06 | 2022-04-15 | 成都光明光电股份有限公司 | Optical glass, glass preform, optical element and optical instrument |
| CN117466531A (en) * | 2023-11-13 | 2024-01-30 | 湖北戈碧迦光电科技股份有限公司 | An environmentally friendly high-transparency H-ZK glass and its preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1237019C (en) | 2006-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1125898B1 (en) | Optical glass for mold pressing and optical element | |
| US5744409A (en) | Optical glass | |
| GB2342918A (en) | Lead-free optical glasses | |
| GB2349639A (en) | Lead-free optical glasses | |
| JP3800443B2 (en) | Non-alkali glass substrate for display and method for producing the same | |
| JPH05155638A (en) | Glass composition | |
| JPH1059741A (en) | Non-alkali glass and its production | |
| JPS58135151A (en) | Optical and ophthalmic glass | |
| JPH10114538A (en) | Alkali-free glass and its production | |
| JPWO2007049622A1 (en) | Phosphate optical glass | |
| EP0099736B1 (en) | Glasses of high refractive index, low dispersion and low density and production thereof | |
| CN1237019C (en) | Leadless and arsenicumless optical glass | |
| JPH11157868A (en) | Lead-free heavy crown or especially heavy crown optical glass | |
| US7041612B2 (en) | Lead-free and arsenic-free special short flint glass | |
| JP3765594B2 (en) | Optical glass | |
| JPH10167753A (en) | Lead-free crown glass | |
| CN1241543A (en) | Lead-free optical glasses | |
| CN1903760A (en) | Environmental protection optical glass | |
| JP2616958B2 (en) | Optical glass for precision press molding | |
| JP2000026133A (en) | Lead-free lanthanum crown glass and lanthanum flint glass | |
| JPH01148726A (en) | Optical glass | |
| GB2356861A (en) | Lead-free optical light flint glass | |
| US8399369B2 (en) | Optical glass and optical element | |
| WO2000073232A1 (en) | Glass fiber composition | |
| JPH0617246B2 (en) | Optical glass |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: CHENGDU GUANGMING PHOTOELECTRICITY CO., LTD. Free format text: FORMER OWNER: GUANGMING PHOTOELECTRICITY AND INFORMATION MATERIALS CO LTD, CHENGDU Effective date: 20050527 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20050527 Address after: 610051 No. 6 South Branch Road, Chengdu, Sichuan Applicant after: CDGM GLASS Co.,Ltd. Address before: 610051 No. 6 South Branch Road, Chengdu, Sichuan Applicant before: GUANGMING PHOTOELECTRIC INFORM |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Chengdu Aoge Optical Glass Co.,Ltd. Assignor: CDGM GLASS Co.,Ltd. Contract fulfillment period: 2006.3.21 to 2011.12.31 Contract record no.: 2009510000068 Denomination of invention: Leadless and arsenicumless optical glass Granted publication date: 20060118 License type: Exclusive license Record date: 20090922 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2006.3.21 TO 2011.12.31; CHANGE OF CONTRACT Name of requester: CHENGDU AOGE OPTICAL GLASS CO., LTD. Effective date: 20090922 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20060118 |