CN107032602A - Environment friendly heavy-lanthanide flint optical glass - Google Patents
Environment friendly heavy-lanthanide flint optical glass Download PDFInfo
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- CN107032602A CN107032602A CN201710341825.3A CN201710341825A CN107032602A CN 107032602 A CN107032602 A CN 107032602A CN 201710341825 A CN201710341825 A CN 201710341825A CN 107032602 A CN107032602 A CN 107032602A
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- environment friendly
- optical glass
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Classifications
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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
- C03C3/064—Glass compositions containing silica with less than 40% silica by weight containing boron
- C03C3/068—Glass compositions containing silica with less than 40% silica by weight containing boron containing rare earths
-
- 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
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
- C03C1/004—Refining agents
Abstract
The invention discloses a kind of environment friendly heavy-lanthanide flint optical glass, the parts by weight of its chemical composition are：SiO2：1.00~5.00 parts, B2O3：10.00~27.00 parts, La2O3：17.00~40.00 parts, Nb2O5：2.00~20.00 parts, TiO2：0~11.00 part, ZrO2：3.00~7.00 parts, Ta2O5：0~6.00 part, Gd2O3：0~22.00 part, WO3：0~7.00 part, ZnO：0~25.00 part, Sb2O5：0~0.50 part, R2O：0~2.00 part, R'O：0~22.50 part, wherein, the R2O is Li2O、Na2O、K2One kind in O, two kinds or three kinds, the R'O be one kind in CaO, BaO, SrO, two kinds or three kinds.The refractive index of product of the present invention is that (nd) is that 1.80~1.90, Abbe number (vd) is 25~33, there are good optical property, excellent devitrification resistance, good melt molding performance, and with the crystalline stability for realizing continuous melting.
Description
Technical field
The invention belongs to glass preparation field, and in particular to a kind of environment friendly heavy-lanthanide flint optical glass.
Background technology
With the development of photovoltaic industry, optical element more they tends to miniaturization, lightweight and high performance, and refractive index is 1.81
Glass of high refractive index above is suitable as the optical glass material of such optical element.
Optical glass needs to have high index of refraction, low Abbe number, so as in special optical system design is carried out, can be achieved
Make up the purpose with correcting chromatic aberration；In addition, in addition it is also necessary to higher intensity and anti-wear performance, its service life could be extended,
Ensure product quality.And most of product of the prior art is often only focused on pursuing high index of refraction and ignoring optical glass need
Other to be possessed attribute.
The optical glass with high index of refraction that tradition is used, generally comprises PbO to obtain preferable optical property, but
With the improvement of people's environmental awareness, increasing country proposes environmental protection requirement unleaded, without arsenic to optical material.
TiO is introduced in the glass of silicate-base or boric acid alkali2、Nb2O5、La2O3、Y2O3、Gd2O3It can be obtained Deng polyvalent metal oxides
To high-refractive index environment friendly optical glass unleaded, without arsenic.
The content of the invention
In view of this, it is necessary to provide a kind of refractive index 1.80~1.91, Abbe number is optical property between 25~33
Stable, devitrification resistance is excellent, melt molding performance is good, and chemical stability is excellent, and transmitance is good, the knot with continuous melting
Brilliant stability, and do not contain PbO and As2O3Environment friendly heavy-lanthanide flint optical glass.
A kind of environment friendly heavy-lanthanide flint optical glass that the present invention is provided, the parts by weight of its chemical composition are：SiO2：1.00
~5.00 parts, B2O3：10.00~27.00 parts, La2O3：17.00~40.00 parts, Nb2O5：2.00~20.00 parts, TiO2：0~
11.00 part, ZrO2：3.00~7.00 parts, Ta2O5：0~6.00 part, Gd2O3：0~22.00 part, WO3：0~7.00 part, ZnO：0
~25.00 parts, Sb2O5：0~0.50 part, R2O：0~2.00 part, R'O：0~22.50 part, wherein, the R2O is Li2O、Na2O、
K2One kind in O, two kinds or three kinds, the R'O be one kind in CaO, BaO, SrO, two kinds or three kinds.
The present invention has advantages below：
The environment friendly heavy-lanthanide flint optical glass of the present invention is free of to environmental hazard very big PbO, As2O3Deng composition, and this production
The refractive index of product is that (nd) is that 1.80~1.90, Abbe number (vd) is 25~33, can in special optical system design is carried out
Make up and correcting chromatic aberration well, there is good optical property, excellent devitrification resistance, good melt molding performance, change
Excellent in stability is learned, transmitance is good, and with the crystalline stability for realizing continuous melting.
Embodiment
With reference to specific embodiment, the present invention will be described in detail, and the description of this part is only exemplary and explained
Property, there should not be any restriction effect to protection scope of the present invention.
Present embodiment provides a kind of environment friendly heavy-lanthanide flint optical glass, and the parts by weight of its chemical composition are：SiO2：
1.00~5.00 parts, B2O3：10.00~27.00 parts, La2O3：17.00~40.00 parts, Nb2O5：2.00~20.00 parts, TiO2：
0~11.00 part, ZrO2：3.00~7.00 parts, Ta2O5：0~6.00 part, Gd2O3：0~22.00 part, WO3：0~7.00 part,
ZnO：0~25.00 part, Sb2O5：0~0.50 part, R2O：0~2.00 part, R'O：0~22.50 part, wherein, the R2O is Li2O、
Na2O、K2One kind in O, two kinds or three kinds, the R'O be one kind in CaO, BaO, SrO, two kinds or three kinds.
Preferably, described environment friendly heavy-lanthanide flint optical glass, the parts by weight of its chemical composition are：SiO2：
2.50~5.00 parts, B2O3：13.00~23.50 parts, La2O3：17.00~35.00 parts, Nb2O5：6.95~17.30 parts, TiO2：
2.50~10.00 parts, ZrO2：3.00~6.50 parts, Ta2O5：0~4.70 part, Gd2O3：0~20.60 part, WO3：0~6.30 part,
ZnO：0~23.50 part, Sb2O5：0~0.30 part, R2O：0~1.80 part, R'O：0~18.00 part, wherein, the R2O is Li2O、
Na2O、K2One kind in O, two kinds or three kinds, the R'O be one kind in CaO, BaO, SrO, two kinds or three kinds.
SiO in the present invention2Glass former, at the same can also be adjusted in high boron, the glass of lanthanum glass viscosity and
Suppress glass devitrification tendency, but its content can not realize the effect above when being less than 1 part, and during more than 5 parts glass meltdown property
Reduction, while the refractive index of glass declines, devitrification resistance is deteriorated, therefore SiO2The content of component is limited to 1 part~5 parts.
B in the present invention2O3It is also glass former, meltdown property can be improved for high lanthanum glass, if its content is not enough
The meltdown property of glass is poor at 10 parts, and the tendency towards devitrification of glass is big, and refractive index is unable to reach requirement and glass during more than 27 parts
Chemical stability be deteriorated, for the optical glass of requirement, B must be reached2O3The content of component is limited to 10~27 parts.
La in the present invention2O3Refractive index and the reduction dispersion of glass can be improved, improves the chemical stability and devitrification of glass
Property, it is the main component of high-refractivity lanthanide glass, when its content is less than 17 parts, glass refraction is relatively low, it is impossible to which reaching will
Ask, when its content is more than 40 parts, the tendency towards devitrification increase of glass, therefore La2O3The content of component is limited to 17~40 parts.
Nb in the present invention2O5It is high index of refraction, the neccessary composition of high-dispersive optical glass, can effectively improves the change of glass
Learn stability and improve the devitrification resistance property of glass, improve the crystallization property of glass, when content is less than 2 parts, it is to improving glass
Glass refractive index and the DeGrain of dispersion, and tendency towards devitrification increase, when its content is more than 20 parts, glass devitrification resistance property drop
It is low, therefore Nb2O5The content of component is limited to 2~20 parts.
TiO in the present invention2It is very effective for the refractive index and dispersion that improve glass, and can significantly reduce the density of glass,
But due to TiO2It is the oxide to form nucleus, if its content is more than 11 parts, tendency towards devitrification can be increased, and cause glass
Color, therefore TiO2Content be limited to 0~11 part.
ZrO in the present invention2And Ta2O5It is the active ingredient for improving glass refraction, and has the work for improving devitrification resistance property
With if ZrO2Content less than 3 parts then the effect above it is unobvious, if ZrO2Content more than 7 parts, Ta2O5Content exceed
6 parts, the tendency towards devitrification of glass can be caused on the contrary to be increased, therefore, ZrO2Content be defined to 3~7 parts, Ta2O5Content be defined to
0~6 part.
Gd in the present invention2O3It is also the active ingredient for the refractive index for increasing glass, improvement glass is played on physical and chemical performance
The effect of glass chemical stability and devitrification resistance property, uses a certain amount of Gd2O3Instead of La2O3, can suitably be effectively improved glass
Devitrification behavior, so Gd2O3Content be limited to 0~22 part.
WO in the present invention3Glass optical constant and devitrification resistance can be adjusted, can be changed especially in lanthanide optical glass
The forming properties of kind glass, and transmitance will not be damaged, experiment finds WO3When content is more than 7 parts, the tendency towards devitrification of glass is on the contrary
Increase, therefore, WO3Content be defined to 0~7 part.
ZnO can reduce the tendency towards devitrification of glass, but devitrification resistance and chemical stability drop during more than 25 parts in the present invention
Low, therefore, ZnO content is defined to 0~25 part.
Alkali metal oxide Li in the present invention2O、Na2O and K2O plays the role of to improve glass melting performance, but its content is not
It can introduce excessive, because these reduce glass viscosity into branch, the chemical stability and devitrification resistance property of glass is deteriorated.Therefore
Li2O、Na2O and K2O total contents are limited to 0~2 part, are preferentially added without.
Alkaline-earth metal CaO, BaO, SrO can adjust the refractive index and Abbe number of glass, improve the change of glass in the present invention
Learn stability, heat endurance, and it is dangerous to reduce the crystallization of glass, but CaO, BaO, SrO total content it is excessive when, glass
Tendency towards devitrification becomes big.
Sb in the present invention2O3It is used as fining agent.Promote clarification during glass melting, less than 0.5 part of Sb can be added2O3Make
For fining agent.
The specific raw material for 14 embodiments that 1 present invention of table is enumerated see and obtained optical glass each parameter (gained
Data are surveyed data after being annealed by -4 DEG C/h).
Table 1
The refractive index nd of the environment friendly heavy-lanthanide flint optical glass of the present invention is that 1.80-1.92, Abbe number vd are 29-47, is had
Good optical property, excellent devitrification resistance, good melt molding performance, chemical stability is excellent, and transmitance is good,
And with the crystalline stability for realizing continuous melting.
The embodiment of present invention described above, is not intended to limit the scope of the present invention..Any basis
Various other corresponding changes and deformation that the technical concept of the present invention is made, should be included in the guarantor of the claims in the present invention
In the range of shield.
Claims (5)
1. a kind of environment friendly heavy-lanthanide flint optical glass, it is characterised in that：The parts by weight of its chemical composition are：SiO2：1.00~
5.00 parts, B2O3：10.00~27.00 parts, La2O3：17.00~40.00 parts, Nb2O5：2.00~20.00 parts, TiO2：0~
11.00 part, ZrO2：3.00~7.00 parts, Ta2O5：0~6.00 part, Gd2O3：0~22.00 part, WO3：0~7.00 part, ZnO：0
~25.00 parts, Sb2O5：0~0.50 part, R2O：0~2.00 part, R'O：0~22.50 part, wherein, the R2O is Li2O、Na2O、
K2One kind in O, two kinds or three kinds, the R'O be one kind in CaO, BaO, SrO, two kinds or three kinds.
2. environment friendly heavy-lanthanide flint optical glass according to claim 1, it is characterised in that：The parts by weight of its chemical composition
For：SiO2：2.50~5.00 parts, B2O3：13.00~23.50 parts, La2O3：17.00~35.00 parts, Nb2O5：6.95~17.30
Part, TiO2：2.50~10.00 parts, ZrO2：3.00~6.50 parts, Ta2O5：0~4.70 part, Gd2O3：0~20.60 part, WO3：0
~6.30 parts, ZnO：0~23.50 part, Sb2O5：0~0.30 part, R2O：0~1.80 part, R'O：0~18.00 part, wherein, it is described
R2O is Li2O、Na2O、K2One kind in O, two kinds or three kinds, the R'O be one kind in CaO, BaO, SrO, two kinds or
Three kinds.
3. environment friendly heavy-lanthanide flint optical glass according to claim 1, it is characterised in that：The parts by weight of its chemical composition
For：SiO2：3.10 parts, B2O3：11.60 part, La2O3：25.60 part, Nb2O5：3.80 parts, ZrO2：4.10 parts, Ta2O5：2.50 part,
Gd2O3：20.60 part, WO3：6.30 part.
4. environment friendly heavy-lanthanide flint optical glass according to claim 1, it is characterised in that：The parts by weight of its chemical composition
For：SiO2：4.6 parts, B2O3：13.00 part, La2O3：17.6 parts, Nb2O5：14.92 part, TiO2：10.0 parts, ZrO2：3.00 part,
ZnO：17.00 part, Sb2O5：0.03 part, BaO：5.90 parts, SrO：12 parts, Li2O：2.00 part.
5. the environment friendly heavy-lanthanide flint optical glass according to Claims 1 to 4 any one, it is characterised in that：The optics
Glass refraction is 1.80~1.91, and Abbe number is 25~33.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710341825.3A CN107032602B (en) | 2017-05-16 | 2017-05-16 | Environment friendly heavy-lanthanide flint optical glass |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710341825.3A CN107032602B (en) | 2017-05-16 | 2017-05-16 | Environment friendly heavy-lanthanide flint optical glass |
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| CN107032602A true CN107032602A (en) | 2017-08-11 |
| CN107032602B CN107032602B (en) | 2019-06-18 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311447A (en) * | 2017-08-24 | 2017-11-03 | 重庆品信玻璃有限公司 | A kind of optics safety glass |
| CN108726872A (en) * | 2018-07-27 | 2018-11-02 | 望江县天长光学科技有限公司 | A kind of optical glass |
| CN109608042A (en) * | 2019-01-28 | 2019-04-12 | 平湖旗滨玻璃有限公司 | The preparation method of non-browning glass and non-browning glass |
| CN111285601A (en) * | 2018-12-07 | 2020-06-16 | 成都光明光电股份有限公司 | Heavy lanthanum flint glass and prefabricated member, optical element and optical instrument thereof |
| CN111285602A (en) * | 2018-12-07 | 2020-06-16 | 成都光明光电股份有限公司 | Heavy lanthanum flint glass and prefabricated member, optical element and optical instrument thereof |
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| CN101215082A (en) * | 2007-01-06 | 2008-07-09 | 湖北新华光信息材料股份有限公司 | Optical glass with high refractive index |
| CN101318769A (en) * | 2008-07-08 | 2008-12-10 | 成都光明光电股份有限公司 | Environment friendly heavy-lanthanide flint optical glass |
| CN102849941A (en) * | 2011-07-27 | 2013-01-02 | 湖北新华光信息材料有限公司 | Borate lanthanide optical glass |
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2017
- 2017-05-16 CN CN201710341825.3A patent/CN107032602B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101215082A (en) * | 2007-01-06 | 2008-07-09 | 湖北新华光信息材料股份有限公司 | Optical glass with high refractive index |
| CN101318769A (en) * | 2008-07-08 | 2008-12-10 | 成都光明光电股份有限公司 | Environment friendly heavy-lanthanide flint optical glass |
| CN102849941A (en) * | 2011-07-27 | 2013-01-02 | 湖北新华光信息材料有限公司 | Borate lanthanide optical glass |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107311447A (en) * | 2017-08-24 | 2017-11-03 | 重庆品信玻璃有限公司 | A kind of optics safety glass |
| CN108726872A (en) * | 2018-07-27 | 2018-11-02 | 望江县天长光学科技有限公司 | A kind of optical glass |
| CN108726872B (en) * | 2018-07-27 | 2020-10-30 | 望江县天长光学仪器有限公司 | Optical glass |
| CN111285601A (en) * | 2018-12-07 | 2020-06-16 | 成都光明光电股份有限公司 | Heavy lanthanum flint glass and prefabricated member, optical element and optical instrument thereof |
| CN111285602A (en) * | 2018-12-07 | 2020-06-16 | 成都光明光电股份有限公司 | Heavy lanthanum flint glass and prefabricated member, optical element and optical instrument thereof |
| CN109608042A (en) * | 2019-01-28 | 2019-04-12 | 平湖旗滨玻璃有限公司 | The preparation method of non-browning glass and non-browning glass |
| CN109608042B (en) * | 2019-01-28 | 2022-01-14 | 平湖旗滨玻璃有限公司 | Radiation-proof glass and preparation method thereof |
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