WO2013034082A1 - 光学玻璃及光学元件 - Google Patents
光学玻璃及光学元件 Download PDFInfo
- Publication number
- WO2013034082A1 WO2013034082A1 PCT/CN2012/081040 CN2012081040W WO2013034082A1 WO 2013034082 A1 WO2013034082 A1 WO 2013034082A1 CN 2012081040 W CN2012081040 W CN 2012081040W WO 2013034082 A1 WO2013034082 A1 WO 2013034082A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- glass
- content
- less
- optical
- optical glass
- Prior art date
Links
- 239000005304 optical glass Substances 0.000 title claims abstract description 45
- 230000003287 optical effect Effects 0.000 title claims abstract description 14
- 239000011521 glass Substances 0.000 abstract description 48
- 239000000203 mixture Substances 0.000 abstract description 10
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Chemical compound O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 abstract 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract 2
- CMIHHWBVHJVIGI-UHFFFAOYSA-N gadolinium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Gd+3].[Gd+3] CMIHHWBVHJVIGI-UHFFFAOYSA-N 0.000 abstract 2
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum oxide Inorganic materials [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 abstract 2
- KTUFCUMIWABKDW-UHFFFAOYSA-N oxo(oxolanthaniooxy)lanthanum Chemical compound O=[La]O[La]=O KTUFCUMIWABKDW-UHFFFAOYSA-N 0.000 abstract 2
- 239000005385 borate glass Substances 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- GJJSDZSDOYNJSW-UHFFFAOYSA-N lanthanum(3+);borate Chemical compound [La+3].[O-]B([O-])[O-] GJJSDZSDOYNJSW-UHFFFAOYSA-N 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 11
- 238000002834 transmittance Methods 0.000 description 9
- 238000002425 crystallisation Methods 0.000 description 8
- 230000008025 crystallization Effects 0.000 description 8
- 239000002253 acid Substances 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 6
- 239000006060 molten glass Substances 0.000 description 6
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 239000005287 barium borate glass Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910021193 La 2 O 3 Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000004031 devitrification Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 229910001404 rare earth metal oxide 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
- C03C3/062—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
- 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
- C03C3/066—Glass compositions containing silica with less than 40% silica by weight containing boron containing zinc
Definitions
- the present invention relates to an optical glass having a refractive index of 1.74 to 1.80 and an Abbe number of 47 to 51, and an optical element made of the optical glass.
- the technical problem to be solved by the present invention is to provide a low-cost optical glass and optical element which does not contain Gd 2 0 3 and has a refractive index range of 1.74-1.80 and an Abbe number range of 47-51.
- optical glass the content by weight of which is: SiO 2 content is greater than 2.7% and less than 10%; B 2 0 3 : 20 to 31%; La 2 0 3 : The content of Y 2 0 3 is more than 12% and less than 20%; the content of ⁇ is more than 1% and less than 4%; the content of Nb 2 0 5 is more than 0.5% and less than 3%, wherein the content of ZnO is > Nb content of 205; Ta 2 0 5: 0-5% ; R0: 0-5%, the R0, Ca0, SrO and MgO in one or more of; the content of Zr0 2 6.7 % or more and less than 15%.
- the content of the Y 2 0 3 is greater than 12% and less than 17%.
- the content of the ⁇ 20 3 is greater than 12% and less than 15%. Further, the content of Zr0 2 is above 6.7% but less than 12%.
- the content of Zr0 2 is above 6.7% but less than 10%.
- the content of the ZnO is more than 1% but less than 2%.
- the content of the Nb 2 0 5 is greater than 0.5% but less than 2.5%.
- optical element formed using the above optical glass is used.
- the invention has the beneficial effects that: as a barium borate glass, the glass composition does not add a force Gd 2 0 3 , and the composition content of La 2 0 3 , B 2 0 3 and Y 2 0 3 can be obtained by adjusting the composition content of La 2 0 3 , B 2 0 3 and Y 2 0 3 stable glass; incorporated ⁇ 2 0 3 amount can increase the transmittance of the glass, lower the glass density, can effectively reduce the liquidus temperature of the glass, glass formable; ZnO may be incorporated to improve the chemical stability of the glass and having The effect of inhibiting crystallization; introducing a small amount of Nb 2 0 5 to adjust the Abbe number of the glass; by adjusting the content of Zn0, Nb 2 0 5 , and the content of ZnO is larger than Nb 2 0 5 , the optical constant is better.
- the chemical stability of the optical glass does not contain Gd 2 0 3 and the cost is lowered.
- the experimental results show that the refractive index of the glass of the invention is 1.74-1.80, the Abbe number range is 47-51, the transmittance is below 370 nm, the glass transmittance is excellent, and the acid and water resistance can reach level 1 and can Meet the imaging needs of optical systems and equipment.
- the optical glass of the invention contains a SiO 2 component, and the SiO 2 can increase the mechanical strength of the glass material, and the glass material has good wear resistance and chemical resistance; if the content of SiO 2 is too low, the glass is unstable and easy to be analyzed. Crystal, too high Si0 2 content, will lead to refractory glass. Therefore, the amount of Si0 2 added is more than 2.7% but less than 10%, preferably 3 to 9%, and most preferably 3 to 6%.
- B 2 0 3 is an effective oxide for forming a glass network structure, and B 2 0 3 is also an effective component for improving the melting property of the glass and lowering its melting temperature and viscous flow temperature, while satisfying the present invention.
- L3 ⁇ 40 3 is an important component for obtaining high refractive index low dispersion glass, and its content is required to be 38-49%.
- the content When the content is less than 38%, the refractive index and low dispersion are decreased. When the content is more than 49%, the resistance is The devitrification property is lowered, so that the glass cannot be stably produced, and the content is preferably 40 to 49%, more preferably 4 to 37%.
- Y 2 0 3 is used in the present invention to achieve an important component having high refractive power in the case where the Abbe number is reduced, and an appropriate amount of ⁇ 2 0 3 can increase the transmittance of the glass and reduce the density of the glass. It can also effectively lower the upper limit temperature of the crystallization of the glass and is easy to form. Accordingly, the amount of ⁇ 2 0 3 added is greater than 12% but less than 20%, preferably greater than 12% but less than 17%, and most preferably greater than 12% but less than 15%.
- the present invention is a barium borate glass in which Gd 2 0 3 is not added, and by adjusting the composition contents of La 2 O 3 , B 2 0 3 and Y 2 0 3 , stable glass can be obtained.
- the addition of Zr0 2 can obtain the desired refractive index, and the addition of an appropriate amount of Zr0 2 can improve the anti-impermeable property of the glass, and can also effectively improve the high temperature viscosity and chemical stability of the glass. Therefore, the addition amount of 21 ⁇ 02 is above 6.7%, otherwise the effect is not achieved, but the content should be below 15%, otherwise the glass is easy to crystallize; the preferred content is above 6.7% but less than 12%, more preferably The content is above 6.7% but less than 10%.
- ZnO is also an essential component of the high refractive index low dispersion glass in the present invention, which can improve the impermeability of the glass and lower the viscous flow temperature thereof, and also improve the chemical stability of the glass and inhibit the crystallization.
- the effect should be added in an amount of more than 1%, otherwise the glass melting property is lowered and the chemical stability is deteriorated; however, the content thereof should be less than 4%, otherwise the low dispersion glass which is the final product of the present invention cannot be obtained.
- the content is more than 1% but less than 2%.
- Nb 2 0 5 is an effective component of a high refractive index, the Abbe number of the present invention in order to adjust the introduction of small amounts of glass, but also has the effect of inhibiting crystallization, added in an amount greater than 0.5% but less than 3%, preferably The content is greater than 0.5% but less than 2.5%.
- the content of the above ZnO is > Nb 2 0 5 content.
- Ta 2 0 5 is a component having the same high refractive index as Nb 2 0 5 , and an appropriate amount may be introduced in the present invention, but since it is expensive, the content is controlled to be 0 to 5%, preferably not added.
- R0 is one or more of Ca0, SrO and MgO to improve the melting property of the glass, and the content thereof ranges from 0 to 5%.
- the present invention does not add Gd 2 0 3 , by adjusting the content of Zn0, Nb 2 0 5 , and the content of ZnO is larger than Nb 2 0 5 , the refractive index can be obtained in the range of 1.74- 1.80 and the Abbe number is 47.
- the optical glass is preferably prepared according to the following procedure:
- the oxides, hydroxides, carbonates or nitrates of the above components are used as raw materials, thoroughly mixed, placed in a platinum crucible, melted at 1200-1400 ° C, preferably 1280-1350 ° C, clarified, both After the melting, the molten glass is obtained; the molten glass is poured below the liocrc and poured into the preheated metal mold; the molten glass in the metal mold is press-formed at 650-75 CTC, and the press molding is performed. The latter glass is annealed to obtain an optical glass.
- the performance test of the optical glass is as follows:
- the refractive index (nd) is an annealing value of (_2 °C/h) - (-6 °C / h), and the refractive index and Abbe number are colorless according to the pair provided in GB/T 7962. 1-1987. Testing methods for refractive index and dispersion coefficient of optical glass;
- the density is tested in accordance with GB/T 7962. 20-1987 Colorless Optical Glass Test Method Density Test Method.
- the glass was made into a sample having a thickness of 10 mm ⁇ 0.1 mm, and the glass was tested to have a transmittance of 70% corresponding to a wavelength ⁇ 70 .
- the acid resistance and water resistance of the test glass can be calculated.
- the crystallization performance of the glass was measured by the ladder furnace method. The glass was made into a 180*10*10mm sample, polished on the side, placed in a furnace with a temperature gradient for 4 hours, and taken out. The glass was observed under a microscope. In case, the highest temperature corresponding to the crystal of the glass is the upper limit temperature of the crystallization of the glass.
- optical glass provided by the present invention has been tested to have the following properties:
- the refractive index range is 1.74-1. 80; the Abbe number is 47-51; the density is 4.24g/cm 3 or less; when the transmittance reaches 80%, the corresponding wavelength ⁇ 80 is 370nm or less; the crystallization maximum temperature is 1100; Below °C; chemical stability acid resistance, water resistance up to level 1.
- the optical glass provided by the present invention has a high refractive index, excellent transmittance, and good chemical stability, and also has low density properties. 5; 5-50. 5;
- the optical glass of the present invention has a refractive index of 1. 74-1. 80, a preferred range of 1. 76-1. 79; Abbe number of 47-51, preferably 48. 5-50.
- the glass density is 4.24 g/cm 3 or less, preferably 4.20 g/cm 3 or less, more preferably 4.18 g/cm 3 or less, and when the transmittance reaches 70%, the corresponding wavelength ⁇ 70 is 370 nm or less, preferably 365 nm or less; It is 1100 ° C or less, preferably 1050 ° C or less; chemical stability, acid resistance, and alkali resistance reach Grade 1.
- the present invention also provides an optical element formed by the optical glass described in the above technical solution in accordance with a method well known to those skilled in the art. Since the optical glass has a high refractive index and a low glass transition temperature, the optical element also has a high refractive index and a low glass transition temperature, and can be applied to devices such as digital cameras, digital video cameras, and camera phones.
- the optical glass is made according to the ratio of raw materials shown in Table 1:
- the molten glass in the mold was press-formed, and the press-molded glass was annealed to obtain an optical glass.
- the optical glass was subjected to performance test. The results are shown in Table 1.
- Table 1 shows the performance parameters of the optical glass prepared in the examples of the present invention.
- the optical glass provided by the present invention has a high refractive index and good chemical stability, low density, and excellent transmittance properties.
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- 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
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/343,559 US9145328B2 (en) | 2011-09-07 | 2012-09-06 | Optical glass and optical element |
JP2014528842A JP5818995B2 (ja) | 2011-09-07 | 2012-09-06 | 光学ガラス及び光学素子 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110263415A CN102311229A (zh) | 2011-09-07 | 2011-09-07 | 光学玻璃及光学元件 |
CN201110263415.4 | 2011-09-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013034082A1 true WO2013034082A1 (zh) | 2013-03-14 |
Family
ID=45424839
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2012/081040 WO2013034082A1 (zh) | 2011-09-07 | 2012-09-06 | 光学玻璃及光学元件 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9145328B2 (zh) |
JP (1) | JP5818995B2 (zh) |
CN (1) | CN102311229A (zh) |
WO (1) | WO2013034082A1 (zh) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015044725A (ja) * | 2013-07-31 | 2015-03-12 | 株式会社オハラ | 光学ガラス、プリフォーム材及び光学素子 |
JPWO2016072523A1 (ja) * | 2014-11-07 | 2017-04-27 | Hoya株式会社 | ガラス、プレス成形用ガラス素材、光学素子ブランク、および光学素子 |
JP2018065747A (ja) * | 2018-01-18 | 2018-04-26 | Hoya株式会社 | ガラス、プレス成形用ガラス素材、光学素子ブランク、および光学素子 |
CN111943502A (zh) * | 2020-08-03 | 2020-11-17 | 成都光明光电股份有限公司 | 光学玻璃、玻璃预制件及光学元件 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102311229A (zh) * | 2011-09-07 | 2012-01-11 | 成都光明光电股份有限公司 | 光学玻璃及光学元件 |
TWI673245B (zh) * | 2013-07-31 | 2019-10-01 | 日商小原股份有限公司 | 光學玻璃、預成形體材及光學元件 |
CN103395981B (zh) * | 2013-08-15 | 2015-07-22 | 湖北新华光信息材料有限公司 | 镧火石光学玻璃及其制备方法 |
JP6603449B2 (ja) * | 2014-09-30 | 2019-11-06 | Hoya株式会社 | ガラス、プレス成形用ガラス素材、光学素子ブランク、および光学素子 |
JP6756482B2 (ja) * | 2015-01-21 | 2020-09-16 | 株式会社オハラ | 光学ガラス、プリフォーム及び光学素子 |
DE102016118364B3 (de) * | 2016-09-28 | 2018-03-08 | Schott Ag | Mantelglas für Festkörperlaser |
CN109734304B (zh) * | 2019-03-28 | 2021-12-07 | 成都光明光电股份有限公司 | 光学玻璃、玻璃预制件、光学元件及光学仪器 |
CN109775981B (zh) * | 2019-03-28 | 2022-04-15 | 成都光明光电股份有限公司 | 光学玻璃、玻璃预制件、光学元件及光学仪器 |
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JPS55116641A (en) * | 1979-02-28 | 1980-09-08 | Minolta Camera Co Ltd | Optical glass |
JPS5641850A (en) * | 1979-09-14 | 1981-04-18 | Ohara Inc | Optical glass |
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US20090088310A1 (en) * | 2007-09-28 | 2009-04-02 | Ohara Inc. | Optical glass |
CN102311229A (zh) * | 2011-09-07 | 2012-01-11 | 成都光明光电股份有限公司 | 光学玻璃及光学元件 |
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2011
- 2011-09-07 CN CN201110263415A patent/CN102311229A/zh active Pending
-
2012
- 2012-09-06 WO PCT/CN2012/081040 patent/WO2013034082A1/zh active Application Filing
- 2012-09-06 US US14/343,559 patent/US9145328B2/en active Active
- 2012-09-06 JP JP2014528842A patent/JP5818995B2/ja active Active
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JPS55116641A (en) * | 1979-02-28 | 1980-09-08 | Minolta Camera Co Ltd | Optical glass |
JPS5641850A (en) * | 1979-09-14 | 1981-04-18 | Ohara Inc | Optical glass |
JP2007269584A (ja) * | 2006-03-31 | 2007-10-18 | Ohara Inc | 光学ガラス |
US20090088310A1 (en) * | 2007-09-28 | 2009-04-02 | Ohara Inc. | Optical glass |
CN102311229A (zh) * | 2011-09-07 | 2012-01-11 | 成都光明光电股份有限公司 | 光学玻璃及光学元件 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015044725A (ja) * | 2013-07-31 | 2015-03-12 | 株式会社オハラ | 光学ガラス、プリフォーム材及び光学素子 |
JPWO2016072523A1 (ja) * | 2014-11-07 | 2017-04-27 | Hoya株式会社 | ガラス、プレス成形用ガラス素材、光学素子ブランク、および光学素子 |
JP2018065747A (ja) * | 2018-01-18 | 2018-04-26 | Hoya株式会社 | ガラス、プレス成形用ガラス素材、光学素子ブランク、および光学素子 |
CN111943502A (zh) * | 2020-08-03 | 2020-11-17 | 成都光明光电股份有限公司 | 光学玻璃、玻璃预制件及光学元件 |
Also Published As
Publication number | Publication date |
---|---|
JP5818995B2 (ja) | 2015-11-18 |
CN102311229A (zh) | 2012-01-11 |
US20140221191A1 (en) | 2014-08-07 |
US9145328B2 (en) | 2015-09-29 |
JP2014529574A (ja) | 2014-11-13 |
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