CN111217519A - Environment-friendly optical glass - Google Patents

Environment-friendly optical glass Download PDF

Info

Publication number
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
Authority
CN
China
Prior art keywords
optical glass
environment
glass
friendly
friendly optical
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.)
Pending
Application number
CN201811431501.XA
Other languages
Chinese (zh)
Inventor
高勇军
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.)
Yicheng Yongrui Glass Technology Co ltd
Original Assignee
Yicheng Yongrui Glass Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yicheng Yongrui Glass Technology Co ltd filed Critical Yicheng Yongrui Glass Technology Co ltd
Priority to CN201811431501.XA priority Critical patent/CN111217519A/en
Publication of CN111217519A publication Critical patent/CN111217519A/en
Pending legal-status Critical Current

Links

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

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

Environment-friendly optical glass
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％。
CN201811431501.XA 2018-11-27 2018-11-27 Environment-friendly optical glass Pending CN111217519A (en)

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

Family

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)

* Cited by examiner, † Cited by third party
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

Citations (8)

* Cited by examiner, † Cited by third party
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
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

Patent Citations (8)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
JP4411424B2 (en) High refractive index optical glass for precision press molding
JP6280015B2 (en) Glass, glass material for press molding, optical element blank, and optical element
CN105693080B (en) Environmentally friendly dense barium flint optical glass and optical element
WO2014048362A1 (en) Environmentally-friendly heavy lanthanum flint optical glass
CN101863617B (en) Optical glass and optical element
CN101337768A (en) Optical glass with high refractive index
US9145330B2 (en) Photochromic glasses
CN107032602A (en) Environment friendly heavy-lanthanide flint optical glass
WO2015109969A1 (en) Optical glass and optical element
JP6721087B2 (en) Optical glass, preform for press molding and optical element
US20180099897A1 (en) Glasses
CN104108872B (en) Environmental protection optical glass, gas preform, optical element and optical instrument
JP6146691B2 (en) Optical glass
CN102674686B (en) Optical glass
CN111217519A (en) Environment-friendly optical glass
WO2022048335A1 (en) Optical glass and optical element
CN101215086A (en) Low-melting point optical glass
JP2020029378A (en) Optical glass
JP2011230992A (en) Optical glass, preform material and optical element
CN106032308A (en) Environmental-friendly optical glass and optical element
CN104944768A (en) Environment-friendly optical glass, fabricated glass part, optical element and optical instrument
CN107555783B (en) Optical glass and optical element
JP2015094785A (en) Optical element
CN101117267A (en) High-refractivity spectacle glass
CN106904825A (en) A kind of optical glass

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20200602