CN114315131A - Optical glass - Google Patents
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- CN114315131A CN114315131A CN202111655989.6A CN202111655989A CN114315131A CN 114315131 A CN114315131 A CN 114315131A CN 202111655989 A CN202111655989 A CN 202111655989A CN 114315131 A CN114315131 A CN 114315131A
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Abstract
The application discloses optical glass contains by mass percent: al (Al)2O31.8‑2.2％、BaO 1.1‑1.3%、B2O311‑16.5％、CaO 1.1‑1.5%、GeO23.0‑5.8%、Gd2O38.2‑8.9%、K2O 5‑7.6％、Li2O 1.2‑2.4％、La2O312.5‑16.8%、Nb2O53‑4.5％、Na2O 4.5‑6.9％、SiO210.5‑16.2％、TiO21.5‑6.8％、Ta2O53.6‑5.8%、MgO 1.2‑1.5%、SrO 0.3‑0.8%、Sb2O30.2‑0.6%、WO31.1‑1.3%、ZnO 3.2‑4.2％、ZrO24.2‑6.8％、Y2O35‑6.2%、Yb2O32.3 to 3.5 percent. The invention prepares the optical glass with the refractive index of 1.68-1.80, the Abbe number of 36-45 and the glass transition temperature of 520 ℃ and 560 ℃.
Description
Technical Field
The invention relates to glass, in particular to optical glass.
Background
In the design of optical system, high refractive index glass or aspheric lens sheet is usually adopted to make miniaturization, ultra-thin and wide angle, and the glass can achieve the purpose, and simultaneously, the glass is matched with high refractive index and low abbe number glass, and the purpose of compensating and correcting chromatic aberration can be achieved in the special optical system design.
Disclosure of Invention
The invention aims to provide optical glass.
In order to achieve the above object, the present invention provides the following technical solutions.
This applicationThe embodiment discloses an optical glass, which comprises the following components in percentage by mass: al (Al)2O3 1.8-2.2％、BaO 1.1-1.3%、B2O3 11-16.5％、CaO 1.1-1.5%、GeO2 3.0-5.8%、Gd2O3 8.2-8.9%、K2O 5-7.6％、Li2O 1.2-2.4％、La2O3 12.5-16.8%、Nb2O5 3-4.5％、Na2O 4.5-6.9％、SiO2 10.5-16.2％、TiO2 1.5-6.8％、Ta2O5 3.6-5.8%、MgO 1.2-1.5%、SrO 0.3-0.8%、Sb2O3 0.2-0.6%、WO3 1.1-1.3%、ZnO 3.2-4.2％、ZrO2 4.2-6.8％、Y2O3 5-6.2%、Yb2O3 2.3-3.5%。
Preferably, in the above optical glass, the refractive index is 1.68 to 1.80.
Preferably, in the above optical glass, the abbe number is 36 to 45.
Preferably, in the optical glass, the glass transition temperature is 520 ℃ and 560 ℃.
Preferably, in the above optical glass, CaO is 1.2 to 1.3%, and ZnO is 3.5 to 3.8%.
Preferably, in the above optical glass, GeO24.1-4.6%.
Preferably, in the above optical glass, Li2O is 1.5-1.8%, Na2O is 4.7-5.3%, K2O is 6 to 7.1 percent.
Preferably, in the above optical glass, Gd2O38.5-8.6% of SiO2Is 13 to 15.8 percent.
Preferably, in the above optical glass, Li2O、Na2O、K2The sum of the mass percentages of O is less than 13 percent.
Preferably, in the above optical glass, La2O3 、Gd2O3 、Y2O3 、Yb2O3The sum of the mass percentages is less than 30%.
Compared with the prior art, the invention prepares the optical glass with the refractive index of 1.68-1.80, the Abbe number of 36-45 and the glass transition temperature of 520-560 ℃.
Detailed Description
Technical solutions in the embodiments of the present invention will be described in detail below, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The optical glass comprises the following chemical components in percentage by mass: al (Al)2O3 1.8-2.2％、BaO 1.1-1.3%、B2O3 11-16.5％、CaO 1.1-1.5%、GeO2 3.0-5.8%、Gd2O3 8.2-8.9%、K2O 5-7.6％、Li2O 1.2-2.4％、La2O3 12.5-16.8%、Nb2O5 3-4.5％、Na2O 4.5-6.9％、SiO2 10.5-16.2％、TiO21.5-6.8％、Ta2O5 3.6-5.8%、MgO 1.2-1.5%、SrO 0.3-0.8%、Sb2O3 0.2-0.6%、WO3 1.1-1.3%、ZnO 3.2-4.2％、ZrO2 4.2-6.8％、Y2O3 5-6.2%、Yb2O32.3 to 3.5 percent. Preferably, CaO is 1.2-1.3% and ZnO is 3.5-3.8%. Preferably, GeO24.1-4.6%. Preferably, Li2O is 1.5-1.8%, Na2O is 4.7-5.3%, K2O is 6 to 7.1 percent. Preferably, Gd2O38.5-8.6% of SiO2Is 13 to 15.8 percent. Preferably, Li2O、Na2O、K2The sum of the mass percentages of O is less than 13 percent. Preferably, La2O3 、Gd2O3 、Y2O3 、Yb2O3The sum of the mass percentages is less than 30%.
Example 1
The optical glass comprises the following chemical components in percentage by mass: al (Al)2O3 1.9％、BaO 1.2%、B2O3 13.2％、CaO 1.2%、GeO2 4.5%、Gd2O3 8.5%、K2O 6％、Li2O 1.6％、La2O3 13.2%、Nb2O5 3.2％、Na2O 4.8％、SiO2 15.2％、TiO2 2.3％、Ta2O5 3.9%、MgO 1.2%、SrO 0.4%、Sb2O3 0.3%、WO3 1.2%、ZnO 3.5％、ZrO2 4.6％、Y2O3 5.5%、Yb2O3 2.6%。
The optical glass obtained in example 1 was examined to have a refractive index of 1.80, an Abbe number of 43 and a glass transition temperature of 535 ℃.
Example 2
The optical glass comprises the following chemical components in percentage by mass: al (Al)2O3 1.9％、BaO 1.2%、B2O3 13.2％、CaO 1.3%、GeO2 4.5%、Gd2O3 8.5%、K2O 6％、Li2O 1.6％、La2O3 13.2%、Nb2O5 3.2％、Na2O 4.8％、SiO2 14.8％、TiO2 2.3％、Ta2O5 3.9%、MgO 1.2%、SrO 0.4%、Sb2O3 0.3%、WO3 1.2%、ZnO 3.8％、ZrO2 4.6％、Y2O3 5.5%、Yb2O3 2.6%。
The optical glass obtained in example 2 was examined to find that the refractive index was 1.79, the Abbe number was 44 and the glass transition temperature was 520 ℃.
Example 3
The optical glass comprises the following chemical components in percentage by mass: al (Al)2O3 1.9％、BaO 1.2%、B2O3 13.2％、CaO 1.2%、GeO2 4.6%、Gd2O3 8.5%、K2O 6％、Li2O 1.6％、La2O3 13.2%、Nb2O5 3.2％、Na2O 4.8％、SiO2 15.1％、TiO2 2.3％、Ta2O5 3.9%、MgO 1.2%、SrO 0.4%、Sb2O3 0.3%、WO3 1.2%、ZnO 3.5％、ZrO2 4.6％、Y2O3 5.5%、Yb2O3 2.6%。
The optical glass obtained in example 3 was examined to find that the refractive index was 1.80, the Abbe number was 43 and the glass transition temperature was 536 ℃.
Example 4
The optical glass comprises the following chemical components in percentage by mass: al (Al)2O3 1.9％、BaO 1.2%、B2O3 13.2％、CaO 1.2%、GeO2 4.1%、Gd2O3 8.5%、K2O 6％、Li2O 1.6％、La2O3 13.2%、Nb2O5 3.2％、Na2O 4.8％、SiO2 15.6％、TiO2 2.3％、Ta2O5 3.9%、MgO 1.2%、SrO 0.4%、Sb2O3 0.3%、WO3 1.2%、ZnO 3.5％、ZrO2 4.6％、Y2O3 5.5%、Yb2O3 2.6%。
The optical glass obtained in example 4 was examined to find that the refractive index was 1.78, the Abbe number was 42 and the glass transition temperature was 540 ℃.
Example 5
The optical glass comprises the following chemical components in percentage by mass: al (Al)2O3 1.9％、BaO 1.2%、B2O3 13.2％、CaO 1.2%、GeO2 4.5%、Gd2O3 8.5%、K2O 6％、Li2O 1.5％、La2O3 13.2%、Nb2O5 3.2％、Na2O 4.8％、SiO2 15.3％、TiO2 2.3％、Ta2O5 3.9%、MgO 1.2%、SrO 0.4%、Sb2O3 0.3%、WO3 1.2%、ZnO 3.5％、ZrO2 4.6％、Y2O3 5.5%、Yb2O3 2.6%。
The optical glass obtained in example 5 was examined to find that the refractive index was 1.79, the Abbe number was 42 and the glass transition temperature was 530 ℃.
Example 6
Chemistry of optical glassesThe components by mass percent are as follows: al (Al)2O3 1.9％、BaO 1.2%、B2O3 13.2％、CaO 1.2%、GeO2 4.5%、Gd2O3 8.5%、K2O 6％、Li2O 1.8％、La2O3 13.2%、Nb2O5 3.2％、Na2O 4.8％、SiO2 15％、TiO2 2.3％、Ta2O5 3.9%、MgO 1.2%、SrO 0.4%、Sb2O3 0.3%、WO3 1.2%、ZnO 3.5％、ZrO2 4.6％、Y2O3 5.5%、Yb2O3 2.6%。
The optical glass obtained in example 6 was examined to find that the refractive index was 1.81, the Abbe number was 44 and the glass transition temperature was 532 ℃.
The present embodiments are to be considered as illustrative and not restrictive, and the scope of the patent is to be determined by the appended claims.
Claims (10)
1. An optical glass, characterized by comprising, in mass percent: al (Al)2O3 1.8-2.2％、BaO 1.1-1.3%、B2O3 11-16.5％、CaO 1.1-1.5%、GeO2 3.0-5.8%、Gd2O3 8.2-8.9%、K2O 5-7.6％、Li2O 1.2-2.4％、La2O3 12.5-16.8%、Nb2O5 3-4.5％、Na2O 4.5-6.9％、SiO2 10.5-16.2％、TiO2 1.5-6.8％、Ta2O5 3.6-5.8%、MgO 1.2-1.5%、SrO 0.3-0.8%、Sb2O3 0.2-0.6%、WO3 1.1-1.3%、ZnO 3.2-4.2％、ZrO2 4.2-6.8％、Y2O3 5-6.2%、Yb2O3 2.3-3.5%。
2. An optical glass according to claim 1, characterised in that its refractive index is between 1.68 and 1.80.
3. An optical glass according to claim 1, characterised in that it has an abbe number of 36-45.
4. The optical glass according to claim 1, wherein the glass transition temperature is 520 ℃ and 560 ℃.
5. An optical glass according to claim 1, characterized in that CaO is present in the range of 1.2 to 1.3% and ZnO is present in the range of 3.5 to 3.8%.
6. The optical glass according to claim 1, wherein GeO is24.1-4.6%.
7. The optical glass according to claim 1, wherein Li2O is 1.5-1.8%, Na2O is 4.7-5.3%, K2O is 6 to 7.1 percent.
8. Optical glass according to claim 1, characterised in that Gd2O38.5-8.6% of SiO2Is 13 to 15.8 percent.
9. The optical glass according to claim 1, wherein Li2O、Na2O、K2The sum of the mass percentages of O is less than 13 percent.
10. The optical glass according to claim 1, wherein La2O3 、Gd2O3 、Y2O3 、Yb2O3The sum of the mass percentages is less than 30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111655989.6A CN114315131A (en) | 2021-12-31 | 2021-12-31 | Optical glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111655989.6A CN114315131A (en) | 2021-12-31 | 2021-12-31 | Optical glass |
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| Publication Number | Publication Date |
|---|---|
| CN114315131A true CN114315131A (en) | 2022-04-12 |
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| CN202111655989.6A Pending CN114315131A (en) | 2021-12-31 | 2021-12-31 | Optical glass |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3201344A1 (en) * | 1982-01-18 | 1983-07-28 | Schott Glaswerke, 6500 Mainz | High-refractive-index optical glasses having refractive indexes of from 1.79-1.82, Abbe numbers of >/= 32 and densities of </= 4.0 |
| US6333288B1 (en) * | 1999-05-06 | 2001-12-25 | Schott Glas | Lead-free optical glasses |
| CN1524815A (en) * | 2002-12-27 | 2004-09-01 | Hoya株式会社 | Optical glass, press-molding glass gob and optical element |
| US20090131240A1 (en) * | 2005-10-11 | 2009-05-21 | Ohara Inc. | Optical Glass |
| JP2009263141A (en) * | 2008-03-31 | 2009-11-12 | Ohara Inc | Optical glass, optical element and optical device |
| CN101746952A (en) * | 2008-12-09 | 2010-06-23 | 湖北新华光信息材料股份有限公司 | High refractive index optical spectacle glass |
| JP2018203549A (en) * | 2017-05-31 | 2018-12-27 | 日立化成株式会社 | Vacuum heat insulation member and manufacturing method therefor |
-
2021
- 2021-12-31 CN CN202111655989.6A patent/CN114315131A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3201344A1 (en) * | 1982-01-18 | 1983-07-28 | Schott Glaswerke, 6500 Mainz | High-refractive-index optical glasses having refractive indexes of from 1.79-1.82, Abbe numbers of >/= 32 and densities of </= 4.0 |
| US6333288B1 (en) * | 1999-05-06 | 2001-12-25 | Schott Glas | Lead-free optical glasses |
| CN1524815A (en) * | 2002-12-27 | 2004-09-01 | Hoya株式会社 | Optical glass, press-molding glass gob and optical element |
| US20090131240A1 (en) * | 2005-10-11 | 2009-05-21 | Ohara Inc. | Optical Glass |
| JP2009263141A (en) * | 2008-03-31 | 2009-11-12 | Ohara Inc | Optical glass, optical element and optical device |
| CN101746952A (en) * | 2008-12-09 | 2010-06-23 | 湖北新华光信息材料股份有限公司 | High refractive index optical spectacle glass |
| JP2018203549A (en) * | 2017-05-31 | 2018-12-27 | 日立化成株式会社 | Vacuum heat insulation member and manufacturing method therefor |
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