CN111217519A - Environment-friendly optical glass - Google Patents
Environment-friendly optical glass Download PDFInfo
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- CN111217519A CN111217519A CN201811431501.XA CN201811431501A CN111217519A CN 111217519 A CN111217519 A CN 111217519A CN 201811431501 A CN201811431501 A CN 201811431501A CN 111217519 A CN111217519 A CN 111217519A
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- Prior art keywords
- optical glass
- environment
- glass
- friendly
- friendly optical
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- 239000005304 optical glass Substances 0.000 title claims abstract description 58
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000011521 glass Substances 0.000 claims abstract description 22
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum oxide Inorganic materials [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 claims abstract description 21
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims abstract description 17
- KTUFCUMIWABKDW-UHFFFAOYSA-N oxo(oxolanthaniooxy)lanthanum Chemical compound O=[La]O[La]=O KTUFCUMIWABKDW-UHFFFAOYSA-N 0.000 claims abstract description 17
- 230000007704 transition Effects 0.000 claims abstract description 7
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 33
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 15
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Inorganic materials O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims description 15
- 229910052593 corundum Inorganic materials 0.000 claims description 15
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 15
- YEAUATLBSVJFOY-UHFFFAOYSA-N tetraantimony hexaoxide Chemical compound O1[Sb](O2)O[Sb]3O[Sb]1O[Sb]2O3 YEAUATLBSVJFOY-UHFFFAOYSA-N 0.000 claims description 14
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims description 10
- 239000000463 material Substances 0.000 abstract description 8
- 239000002253 acid Substances 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 230000009477 glass transition Effects 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 7
- 239000000126 substance Substances 0.000 description 5
- GOLCXWYRSKYTSP-UHFFFAOYSA-N Arsenious Acid Chemical compound O1[As]2O[As]1O2 GOLCXWYRSKYTSP-UHFFFAOYSA-N 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- 206010040925 Skin striae Diseases 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052810 boron oxide Inorganic materials 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 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
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013082 photovoltaic technology Methods 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000013341 scale-up Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 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
- C03C3/095—Glass compositions containing silica with 40% to 90% silica, by weight 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
- C03C4/00—Compositions for glass with special properties
- C03C4/20—Compositions for glass with special properties for chemical resistant glass
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Compositions (AREA)
Abstract
The invention relates to an environment-friendly optical glass, belonging to the technical field of optical glass; the composition comprises the following components in percentage by weight: SiO 22：50‑65％、Na2O：5‑12％、La2O3：5‑10％、Y2O3：2‑8％、TiO2: 5-20%, CaO: 2-6%, the density of the glass is 3.95g/cm3The refractive index is 1.65-1.75, Abbe number is 50-60, and transition temperature is below 635 ℃. The cost of raw materials is low, the environment-friendly material is used for replacing the existing harmful material, when the transmissivity of the optical glass reaches 80%, the corresponding wavelength is less than 370nm, the acid resistance DA of the optical glass is 1 class, the glass transition temperature does not exceed 520 ℃, and the density is less than or equal to 3.2g/cm3。
Description
Technical Field
The invention relates to environment-friendly optical glass, and belongs to the technical field of optical glass.
Background
Optical glass is a fundamental and important component of the photovoltaic technology industry. Particularly, after the 90 s of the 20 th century, along with the continuous fusion of optics, electronic information science and new material science, the application of optical glass as a photoelectronic base material in three fields of optical transmission, optical storage and photoelectric display is more rapid and rapid, and the optical glass becomes one of the basic conditions for the development of social informatization, particularly photoelectric information technology.
With the sustainable and stable development of domestic economy, the optical glass manufacturing industry in China develops rapidly. According to the data of the national statistical bureau, the number of enterprises in the optical glass manufacturing industry reaches 246 in 2010, and the sales income of the industry is 234.05 billion yuan all the year round, which is increased by 53.70% on year-on-year basis; the profit is realized to be 15.37 billion yuan, and the comparably increase is 87.10 percent; the assets scale up to 264.50 billion yuan, which increases 77.49%. As the optical glass manufacturing industry is mainly sold in China, the influence of financial crisis on the optical glass manufacturing industry is relatively small, and the optical glass manufacturing industry still shows a good growth trend.
High-quality quartz sand is used as a main material. Adding adjuvant properly. Because the rare earth has high refractive index, low dispersion and good chemical stability of the optical glass, the optical glass can be produced and used for manufacturing lenses of advanced optical instruments such as advanced cameras, video cameras, telescopes and the like. For example, lanthanum glass containing lao 360% lanthanum oxide and 89360% boron oxide b2o 340% lanthanum oxide, which has excellent optical properties, is an indispensable optical material for manufacturing lenses for advanced cameras and lenses for periscopes. In addition, radiation-proof glass can be produced by utilizing the radiation-proof characteristics of some rare earth elements.
In the existing optical glass, PbO, CdO, As2O3 and other toxic and harmful components are contained, and some glass in the market also contains 5-9.5 wt% of B2O3, so that the dispersion of the glass is reduced, and the acid resistance of the glass is reduced; still other glasses contain a large amount of ZrO2 having a high melting point, which increases the melting temperature of the glass, increases the process production cost of the glass, and increases the viscosity of the glass, resulting in difficulty in removing bubbles and striae of the glass; it is inevitable that the environment protection of the optical glass developed at present is realized by adopting other components to replace toxic and harmful components such As PbO, CdO, As2O3 and the like.
Disclosure of Invention
The invention aims to provide the environment-friendly optical glass which is easy to melt, low in raw material cost, difficult to crystallize and good in chemical stability, and aims to overcome the defects and defects of the prior art, wherein the refractive index of the environment-friendly optical glass is 1.65-1.75, the Abbe number of the environment-friendly optical glass is 50-60, and the transition temperature of the environment-friendly optical glass is below 635 ℃.
In order to achieve the purpose, the invention adopts the technical scheme that: the environment-friendly optical glass comprises the following components in percentage by weight: SiO 22：50-65％、Na2O：5-12％、La2O3：5-10％、Y2O3：2-8％、TiO2: 5-20%, CaO: 2-6%, the density of the glass is 3.95g/cm3The refractive index is 1.65-1.75, Abbe number is 50-60, and transition temperature is below 635 ℃.
Preferably, the ringThe optical glass comprises: b is2O3：0～5％、Al2O3：0～5％、ZrO2：0～2％、K2O：0～8％、ZnO：0～5％、Sb2O3：0～0.5％。
Preferably, the environment-friendly optical glass contains B2O3：1～3％、Al2O3：1.2～2.8％、ZrO2：0.6～1％、K2O：3～6％、ZnO：2～4％、Sb2O3：0.3～0.5％。
The environment-friendly optical glass comprises the following components: SiO 22、Na2O、La2O3、Y2O3、TiO2、CaO、B2O3、Al2O3、ZrO2、K2O、ZnO、Sb2O3。
The environment-friendly optical glass comprises the following components in percentage by weight: SiO 22：55-62％、Na2O：8-10％、La2O3：6-8％、Y2O3：3-6％、TiO2：10-15％、CaO：3-5％、Al2O3：1.2～2.8％、ZrO2：0.6～1％、K2O：3～6％。
Preferably, the environment-friendly optical glass comprises the following components in percentage by weight: SiO 22：58-60％、Na2O：10-12％、La2O3：6-9％、Y2O3：4-7％、TiO2：8-18％、CaO：3-6％、B2O3：1～3％，K2O：3～6％、ZnO：2～4％、Sb2O3：0.3～0.5％。
Preferably, the environment-friendly optical glass comprises the following components in percentage by weight: SiO 22：55-60％、Na2O：6-8％、La2O3：8-10％、Y2O3：6-8％、TiO2：12-14％、CaO：2.5-5.5％、Al2O3：2～2.5％、ZrO2：0.8～1％、Sb2O3：0.33～0.45％。
B2O3Is an additive component of glass to achieve low dispersion.
Al2O3Is a component that improves the chemical stability of the glass.
ZrO2Is an additive component for reducing the tendency of crystallization of glass and improving the stability.
K2O has the function of lowering the transition temperature of the glass and fluxing.
The invention utilizes SiO2、Na2O、La2O3、Y2O3、TiO2CaO, and B2O3、Al2O3、ZrO2、K2O、ZnO、Sb2O3The auxiliary components have good flexibility, avoid the utilization of harmful substances in the prior art, adopt the combination of harmless and environment-friendly components, improve the quality of the optical glass and expand the application range of the optical glass.
After adopting the structure, the invention has the beneficial effects that: the environment-friendly optical glass disclosed by the invention is low in raw material cost, the environment-friendly material is used for replacing the existing harmful material, when the transmittance of the optical glass reaches 80%, the corresponding wavelength is less than 370nm, the acid resistance DA of the optical glass is 1 class, the glass transition temperature does not exceed 520 ℃, and the density is less than or equal to 3.2g/cm3。
Detailed Description
The environment-friendly optical glass of the embodiment comprises the following main components: SiO 22、Na2O、La2O3、Y2O3、TiO2、CaO；
The environment-friendly optical glass comprises the following components in percentage by weight: b is2O3、Al2O3、ZrO2、K2O、ZnO、Sb2O3；
The density of the glass is 3.95g/cm3The refractive index is 1.65-1.75, Abbe number is 50-60, and transition temperature is below 600 ℃.
The first embodiment is as follows:
the environment-friendly optical glass comprises the following components in percentage by weight: SiO 22：55-62％、Na2O：8-10％、La2O3：6-8％、Y2O3：3-6％、TiO2：10-15％、CaO：3-5％、Al2O3：1.2～2.8％、ZrO2：0.6～1％、K2O：3～6％。
Example two:
the environment-friendly optical glass comprises the following components in percentage by weight: SiO 22：58-60％、Na2O：10-12％、La2O3：6-9％、Y2O3：4-7％、TiO2：8-18％、CaO：3-6％、B2O3：1～3％，K2O：3～6％、ZnO：2～4％、Sb2O3：0.3～0.5％。
Example three:
the environment-friendly optical glass comprises the following components in percentage by weight: SiO 22：55-60％、Na2O：6-8％、La2O3：8-10％、Y2O3：6-8％、TiO2：12-14％、CaO：2.5-5.5％、Al2O3：2～2.5％、ZrO2：0.8～1％、Sb2O3：0.33～0.45％。
Example four:
the environment-friendly optical glass comprises the following components in percentage by weight: SiO 22：60-62％、Na2O：5-6％、La2O3：8-9％、Y2O3：2-8％、TiO2：18-20％、CaO：2-3％、ZrO2：1～2％、K2O：3～5％、Sb2O3：0.3～0.5％。
In the above-mentioned embodiment, B2O3Is an additive component of glass to achieve low dispersion. Al (Al)2O3Is a component that improves the chemical stability of the glass. ZrO (ZrO)2Is added to reduce the devitrification tendency of glass and improve the stabilityAdding the components. K2O has the function of lowering the transition temperature of the glass and fluxing.
The present invention also provides an optical element formed from the above optical glass according to a method well known to those skilled in the art. Because the optical glass has high refractive index, the optical element also has high refractive index, and can be applied to equipment such as digital cameras, digital video cameras, camera mobile phones and the like.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (7)
1. An environment-friendly optical glass, which is characterized in that: the environment-friendly optical glass comprises the following components in percentage by weight: SiO 22：50-65％、Na2O：5-12％、La2O3：5-10％、Y2O3：2-8％、TiO2: 5-20%, CaO: 2-6%, the density of the glass is 3.95g/cm3The refractive index is 1.65-1.75, Abbe number is 50-60, and transition temperature is below 635 ℃.
2. The environmentally friendly optical glass of claim 1, wherein: the environment-friendly optical glass contains: b is2O3：0～5％、Al2O3：0～5％、ZrO2：0～2％、K2O：0～8％、ZnO：0～5％、Sb2O3：0～0.5％。
3. The environmentally friendly optical glass of claim 1, wherein: the environment-friendly optical glass contains B2O3：1～3％、Al2O3：1.2～2.8％、ZrO2：0.6～1％、K2O：3～6％、ZnO：2～4％、Sb2O3：0.3～0.5％。
4. An environment-friendly optical glass, which is characterized in that: the environment-friendly optical glass comprises the following components: SiO 22、Na2O、La2O3、Y2O3、TiO2、CaO、B2O3、Al2O3、ZrO2、K2O、ZnO、Sb2O3。
5. The environmentally friendly optical glass of claim 4, wherein: the environment-friendly optical glass comprises the following components in percentage by weight: SiO 22：55-62％、Na2O：8-10％、La2O3：6-8％、Y2O3：3-6％、TiO2：10-15％、CaO：3-5％、Al2O3：1.2～2.8％、ZrO2：0.6～1％、K2O：3～6％。
6. The environmentally friendly optical glass of claim 4, wherein: the environment-friendly optical glass comprises the following components in percentage by weight: SiO 22：58-60％、Na2O：10-12％、La2O3：6-9％、Y2O3：4-7％、TiO2：8-18％、CaO：3-6％、B2O3：1～3％，K2O：3～6％、ZnO：2～4％、Sb2O3：0.3～0.5％。
7. The environmentally friendly optical glass of claim 4, wherein: the environment-friendly optical glass comprises the following components in percentage by weight: SiO 22：55-60％、Na2O：6-8％、La2O3：8-10％、Y2O3：6-8％、TiO2：12-14％、CaO：2.5-5.5％、Al2O3：2～2.5％、ZrO2：0.8～1％、Sb2O3：0.33～0.45％。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811431501.XA CN111217519A (en) | 2018-11-27 | 2018-11-27 | Environment-friendly optical glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811431501.XA CN111217519A (en) | 2018-11-27 | 2018-11-27 | Environment-friendly optical glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111217519A true CN111217519A (en) | 2020-06-02 |
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ID=70832010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811431501.XA Pending CN111217519A (en) | 2018-11-27 | 2018-11-27 | Environment-friendly optical glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111217519A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114956549A (en) * | 2022-06-14 | 2022-08-30 | 成都光明光电有限责任公司 | Sealing glass |
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|---|---|---|---|---|
| US5744409A (en) * | 1994-06-30 | 1998-04-28 | Hoya Corporation | Optical glass |
| CN102596837A (en) * | 2009-10-30 | 2012-07-18 | 株式会社小原 | Optical glass and core material for optical fiber |
| CN103717542A (en) * | 2011-07-29 | 2014-04-09 | 株式会社小原 | Optical glass |
| CN103864293A (en) * | 2012-12-07 | 2014-06-18 | 株式会社小原 | Optical glass, preformed blank and optical element |
| CN106032308A (en) * | 2015-03-13 | 2016-10-19 | 成都光明光电股份有限公司 | Environmental-friendly optical glass and optical element |
| CN107140825A (en) * | 2017-07-10 | 2017-09-08 | 成都光明光电股份有限公司 | Optical glass |
| CN107473584A (en) * | 2013-02-25 | 2017-12-15 | 成都光明光电股份有限公司 | Environmental protection optical glass, gas preform, optical element and optical instrument |
| CN108409132A (en) * | 2018-03-29 | 2018-08-17 | 成都光明光电股份有限公司 | Environmental protection optical glass and optical element |
-
2018
- 2018-11-27 CN CN201811431501.XA patent/CN111217519A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5744409A (en) * | 1994-06-30 | 1998-04-28 | Hoya Corporation | Optical glass |
| CN102596837A (en) * | 2009-10-30 | 2012-07-18 | 株式会社小原 | Optical glass and core material for optical fiber |
| CN103717542A (en) * | 2011-07-29 | 2014-04-09 | 株式会社小原 | Optical glass |
| CN103864293A (en) * | 2012-12-07 | 2014-06-18 | 株式会社小原 | Optical glass, preformed blank and optical element |
| CN107473584A (en) * | 2013-02-25 | 2017-12-15 | 成都光明光电股份有限公司 | Environmental protection optical glass, gas preform, optical element and optical instrument |
| CN106032308A (en) * | 2015-03-13 | 2016-10-19 | 成都光明光电股份有限公司 | Environmental-friendly optical glass and optical element |
| CN107140825A (en) * | 2017-07-10 | 2017-09-08 | 成都光明光电股份有限公司 | Optical glass |
| CN108409132A (en) * | 2018-03-29 | 2018-08-17 | 成都光明光电股份有限公司 | Environmental protection optical glass and optical element |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114956549A (en) * | 2022-06-14 | 2022-08-30 | 成都光明光电有限责任公司 | Sealing glass |
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Application publication date: 20200602 |