CN104445925A - Ultra-high-refractivity environment-friendly cameo glass and preparation method thereof - Google Patents

Ultra-high-refractivity environment-friendly cameo glass and preparation method thereof Download PDF

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Publication number
CN104445925A
CN104445925A CN201410706484.1A CN201410706484A CN104445925A CN 104445925 A CN104445925 A CN 104445925A CN 201410706484 A CN201410706484 A CN 201410706484A CN 104445925 A CN104445925 A CN 104445925A
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glass
cameo
preparation
bao
cameo glass
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彭志钢
杜晓欧
程金树
袁坚
楼贤春
郑伟宏
田培静
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Hebei shahe glass technology research institute
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Hebei shahe glass technology research institute
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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
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/062—Glass compositions containing silica with less than 40% silica by weight
    • 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
    • C03C2201/00—Glass compositions
    • C03C2201/06—Doped silica-based glasses
    • C03C2201/08—Doped silica-based glasses containing boron or halide
    • C03C2201/10—Doped silica-based glasses containing boron or halide containing boron
    • 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
    • C03C2201/00—Glass compositions
    • C03C2201/06—Doped silica-based glasses
    • C03C2201/30—Doped silica-based glasses containing metals
    • C03C2201/34—Doped silica-based glasses containing metals containing rare earth metals
    • C03C2201/3411—Yttrium
    • 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
    • C03C2201/00—Glass compositions
    • C03C2201/06—Doped silica-based glasses
    • C03C2201/30—Doped silica-based glasses containing metals
    • C03C2201/34—Doped silica-based glasses containing metals containing rare earth metals
    • C03C2201/3417—Lanthanum
    • 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
    • C03C2201/00—Glass compositions
    • C03C2201/06—Doped silica-based glasses
    • C03C2201/30—Doped silica-based glasses containing metals
    • C03C2201/34—Doped silica-based glasses containing metals containing rare earth metals
    • C03C2201/3435—Neodymium
    • 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
    • C03C2201/00—Glass compositions
    • C03C2201/06—Doped silica-based glasses
    • C03C2201/30—Doped silica-based glasses containing metals
    • C03C2201/34—Doped silica-based glasses containing metals containing rare earth metals
    • C03C2201/3476—Erbium
    • 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
    • C03C2201/00—Glass compositions
    • C03C2201/06—Doped silica-based glasses
    • C03C2201/30—Doped silica-based glasses containing metals
    • C03C2201/40—Doped silica-based glasses containing metals containing transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn
    • 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
    • C03C2201/00—Glass compositions
    • C03C2201/06—Doped silica-based glasses
    • C03C2201/30—Doped silica-based glasses containing metals
    • C03C2201/40—Doped silica-based glasses containing metals containing transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn
    • C03C2201/42—Doped silica-based glasses containing metals containing transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn containing titanium
    • 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
    • C03C2201/00—Glass compositions
    • C03C2201/06—Doped silica-based glasses
    • C03C2201/30—Doped silica-based glasses containing metals
    • C03C2201/50—Doped silica-based glasses containing metals containing alkali metals
    • 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
    • C03C2201/00—Glass compositions
    • C03C2201/06—Doped silica-based glasses
    • C03C2201/30—Doped silica-based glasses containing metals
    • C03C2201/54—Doped silica-based glasses containing metals containing beryllium, magnesium or alkaline earth metals

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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

The invention discloses ultra-high-refractivity environment-friendly cameo glass. The cameo glass comprises components in percentage by weight as follows: 10-20% of SiO2, 32-45% of BaO, 35-45% of TiO2, 0-5% of ZnO, 0-8% of ZrO2, 0-3% of K2O, 1-3% of B2O3, 2-5% of CaO, 0.5-2% of La2O3, 0-1.5% of Y2O3, 0.05-0.5% of Nd2O3, 0.02-0.4% of Er2O3 and 0.008-0.02% of NiO. The refractivity of the cameo glass is in a range of 1.9-2.1, the visible light transmittance is in a range of 81-85%, and the cameo glass is pure in color, low in melting temperature and good in chemical stability and has characteristics of easiness in grinding and polishing and the like. The invention further discloses a preparation method of the cameo glass. The melting quality of the glass is guaranteed through secondary melting, and erosion to refractory materials is reduced through low-temperature rapid melting, so that the effect caused by impurities on the quality of the glass is controlled.

Description

A kind of extra-high refraction environment-friendly type cameo glass and preparation method thereof
Technical field
The present invention relates to the detrimental oxide such as the not leaded and arsenic of one, transparency and the high environment-friendly type cameo glass composition of specific refractory power, this cameo glass has high specific refractory power 1.9-2.1, and chemical stability is good, and visible light transmissivity is high, and its quality is similar to zircon.
Technical background
Jewel obtains the reason valued of people and is not only that rare is expensive characteristic, be more its can present after processing polishing bright colour and from from different color and lusters, shown that it is magnificent and noble.Jewel rareness unexpected is after all limited, expensive, and the general population is difficult to accept.Just because of jewel price is high, imitative diamond material is occurred in a large number, the development of Industrial materials and production and processing technology thereupon, market occurs a large amount of emulation and imitative diamond material occur, some is even enough to mix the spurious with the genuine, and the general population also can be allowed can to have bought the ornament matched in excellence or beauty with true jewel with lower price simultaneously.
Imitative cameo glass kind is more in the market, as lead crystal glass, milkiness and half emulsion opal glass etc., but containing lead crystal glass owing to there being higher lead tolerance, and in use there will be stripping problem, have impact on HUMAN HEALTH, in addition, various disease is caused by human body suction body after the volatilization of lead crystal glass in melting process enters air.Milkiness and half emulsion opal glass and cameo glass difference large, opaque, do not reach the effect of cameo glass.Imitative cameo glass quality is not high enough, uneven in the market, though there is better sample, as opticglass, is with high plumbous or rare earth for main component mostly, environmental problem and cost price very big.
Patent CN101381202A discloses a kind of stibium-containing ruby glass formula and preparation method, though be environment-friendly type, but its poor quality distance compared with specific refractory power more than 2.0, the good jewel of dispersion is larger.
Summary of the invention
The object of the invention is to for above technical problem, a kind of extra-high refraction environment-friendly type cameo glass and preparation method thereof is provided.
The technical solution used in the present invention is as follows:
A kind of extra-high refraction environment-friendly type cameo glass, it comprises following component by weight percentage: SiO 210-20%, BaO 32-45%, TiO 235-45%, ZnO 0-5%, ZrO 20-8%, K 2o 0-3%, B 2o 31-3%, CaO2-5%, La 2o 30.5-2%, Y 2o 30-1.5%, Nd 2o 30.05-0.5%, Er 2o 30.02-0.4%, NiO 0.008-0.02%.
Wherein, TiO 2with BaO in order to ensure specific refractory power and the density of cameo glass, by oxide mass percentages: TiO 235-45%, BaO 32-45%, and the content sum of the two is 67-90%, preferred 73-90%, and both mass ratioes are 1.4:1--0.78:1, wherein BaO is with the 10-15% of its content Ba (NO 3) 2introduce, all the other are introduced with corresponding carbonate or oxide form.Nd 2o 3and Er 2o 3and NiO makees the toning agent of cameo glass, and Nd 2o 3and Er 2o 3the two controls between 2:1--1:1 than row.The La of 0.5-2% 2o 3with the Y of 0-1.5% 2o 3for controlling the tendency towards devitrification of glass.
The cameo glass composition that the present invention relates to is suitable for the preparation technologies such as compacting, calendering.
Particularly, the preparation method of the extra-high refraction environmental protection cameo glass that the present invention relates to, comprises the steps:
A () forms each component of precise according to the cameo glass of design and mixes;
B component that (a) mixes by () adds platinum crucible stove at 1000 DEG C, rises to 1240 DEG C-1300 DEG C insulation 2h found by the warm speed of 5 DEG C/min;
C the glass melted is poured into shrend in 10 DEG C of clean about-20 DEG C water and is become glass particle by (), move in 150 DEG C of baking ovens to dry and found for secondary;
(d) by the glass of having dried in platinum crucible 1200 DEG C-1225 DEG C found 0.5h, and repeatedly stir, pour forming mould into after furnace temperature being down to 1180 DEG C of insulation 0.5h shaping, close stove after moving in 450--550 DEG C of annealing furnace the 0.5-3h that anneals and cool.
Wherein Annealing Temperature of Glass is preferably 480-520 DEG C, and annealing time priority acccess control is between 0.5-1.5h.
Cameo glass composition all produces great impact to its quality or performance and cost.Glass ingredient and production technique substantial connection, usually assign to select production technique according to the one-tenth of design, Glass Composition Design is improper, causes fusing difficulty, when founding, the defects such as calculus, striped, bubble occurs, happen occasionally in actual production.Further, Glass Composition Design must consider processing performance needs.Usually make design glass ingredient reach and be easy to fusing, meet the operational requirements such as shaping, processing and annealing.Finally, the quality stability of raw material and a large amount of supply problem must be considered when design mix.
In said components, SiO 2be important network former, form irregular contiguous network with the structural component of silicon-oxy tetrahedron, become the skeleton of glass.It not only can form glass, and can improve the physical strength, chemical stability, thermostability etc. of glass, but it is again more infusibilized material, therefore SiO 2content has its optimum value.If containing ratio is lower than 10%, cannot obtain this effect fully, the poor chemical stability of glass, become glass difficulty, quality can not be guaranteed.On the other hand, if containing ratio is more than 20%, then the temperature of fusion of cameo glass is high, and viscosity rises, and is difficult to glass is homogenized.So SiO of the present invention 2content 10 ~ 20% is preferably suitable, is more preferably 12 ~ 18%.
K 2o is network modifying oxide, can make silicon-oxy tetrahedron ［ SiO after introducing 4the network that formed is lax, fracture, thus solve SiO 2infusibilized problem, can, as fusing assistant, make glass melting temperature decline, preferred mass mark more than 1%.When potassium oxide content is too low, glass is caused to melt difficulty; When total amount is too high, the chemical stability of glass is deteriorated.Therefore in this cameo glass, potassium oxide should have suitable content, preferred K in the present invention 2o 0-3%, be more preferably 1-2.5%.
TiO 2have and increase the effect of glass refraction, also can increase the dispersion of glass simultaneously, be the main oxides of alternative PbO in the present invention and essential.TiO 2content less than 35% time, the specific refractory power of glass does not reach requirement; If more than 45%, can glass coloring be made and devitrification of glass tendency becomes and is difficult to greatly control, owing to making glass yellow tendency strengthen to ultraviolet strong absorption, simultaneously TiO 2can make again the painted enhancing of the Fe in glass, this is disadvantageous to the crystal glass of emphasis transparency and pure color.
BaO substitutes the main oxides of PbO in the present invention and essential, has the effect increasing glass refraction and glass density, can not reach density 4.0g/cm less than 32% 3target, BaO is more than 45%, and the deaeration of glass in thaw process is difficult to carry out, and aggravates the erosion of kiln refractory materials, and melting becomes difficulty, and glass defect increases, degradation, is difficult to arrive the crystal glass of high-quality.
CaO has the effect reducing glass high temperature viscosity and increase glass low-temperature viscosity, and in the present invention, for making the curing speed in the range of working temperature of glass accelerate, glass material property lengthens, and CaO content is better at 2-5%, and preferred content is 2.5-4%.
Chemical stability and the thermostability of glass can be improved in ZnO the present invention, make the viscosity curve of glass become mild, be conducive to glass and form operation.The content of ZnO of the present invention is better in 0-5% effect, and preferred content is 1-3%.
La 2o 3and Y 2o 3by the tendency towards devitrification controlling glass, specific refractory power and the fluorescent effect of cameo glass can be improved simultaneously.
Er 2o 3and Nd 2o 3two kinds of rare earth oxides use mainly as glassmaker's soap, use trace just can play good decolorizing effect, can increase transparency and the glossiness of glass, consumption too much can make glass coloring on the contrary, crystal glass according to the present invention forms, and both are respectively Er by consumption 2o 30.02-0.4%, Nd 2o 30.05-0.5%, too much makes glass coloring, does not very fewly have decolorizing effect.
NiO is good discoloring agent and tinting material, adds the NiO of trace for balance cameo glass is due to TiO in the present invention 2the color that content height causes is partially yellow, and content is 0.008-0.02%.
Specific refractory power is made to reach 1.9-2.1 while the glass composition that the present invention relates to ensures the transmitance that glass is high, on market, cameo glass of selling all does not reach this value, discoloring agent consumption is less just can be reached the effect of pure color and decolour stable, and product has excellent optical property; Oxygen-freeization lead and the objectionable impurities such as arsenic oxide arsenoxide and fluorine in composition, production process environmental protection, product does not have harmful substances stripping problem.This cameo glass specific refractory power is between up to 1.9-2.1, and visible light transmissivity is between 81-85%, and pure color, glass melting temperature is low, and chemical stability is good, and has characteristics such as being easy to polishing processing.
The preparation of cameo glass of the present invention adopts secondary to found the melting quality ensureing glass, and needs the erosion of low temperature rapid melting minimizing to refractory materials, to control the impact of impurity on glass quality.
Embodiment
Embodiment 1
Consisting of (weight percent) of the extra-high refraction environment-friendly type cameo glass of the present embodiment: SiO 210%, BaO 32%, TiO 245%, ZnO 1%, ZrO 28%, B 2o 31%, CaO2%, La 2o 30.5%, Y 2o 30.5%, Nd 2o 30.05%, Er 2o 30.02%, NiO 0.02%.
The preparation method of the present embodiment extra-high refraction environment-friendly type cameo glass is as follows:
(1) each component of precise mixing;
(2) component mixed is added platinum crucible stove at 1000 DEG C, rise to 1240 DEG C of insulation 2h by the heat-up rate of 5 DEG C/min and found;
(3) glass melted is poured into shrend in 10 DEG C of clean about-20 DEG C water and become glass particle, move in 150 DEG C of baking ovens to dry and found for secondary;
(4) glass of having dried 1200 DEG C of secondaries in platinum crucible are founded 0.5h, and stir, pour forming mould into after furnace temperature being down to 1180 DEG C of insulation 0.5h shaping, close stove after moving in 480-550 DEG C of annealing furnace the 0.5h that anneals and cool.
The present embodiment extra-high refraction environment-friendly type cameo glass specific refractory power 2.1, density 4.40g/cm 3, transmitance 83%.
The weight percent of each component of embodiment 2-7 is in table 1, its preparation method is basic identical with embodiment 1, the change of temperature, annealing temperature and annealing time that difference is only temperature that step (2) first time founds, step (4) second time is founded, concrete technology condition is in table 1.
Table 1 embodiment 2-7
。

Claims (7)

1. an extra-high refraction environment-friendly type cameo glass, is characterized in that comprising following component by weight percentage: SiO 210-20%, BaO 32-45%, TiO 235-45%, ZnO 0-5%, ZrO 20-8%, K 2o 0-3%, B 2o 31-3%, CaO2-5%, La 2o 30.5-2%, Y 2o 30-1.5%, Nd 2o 30.05-0.5%, Er 2o 30.02-0.4%, NiO 0.008-0.02%.
2. cameo glass according to claim 1, is characterized in that TiO 2be 67-90% with the content sum of BaO, wherein BaO is with the 10-15% of its content Ba (NO 3) 2introduce, all the other are introduced with corresponding carbonate or oxide form.
3. cameo glass according to claim 2, is characterized in that TiO 2be 73-90% with the content sum of BaO, and both mass ratioes are 1.4:1 ~ 0.78:1.3.
4. cameo glass according to claim 1, is characterized in that Nd 2o 3, Er 2o 3with the toning agent that NiO is described cameo glass, wherein Nd 2o 3and Er 2o 3mass ratio be 2:1 ~ 1:1.
5. the preparation method of the cameo glass described in any one of claim 1-4, is characterized in that its step is as follows:
(1) each component of precise mixing;
(2) component mixed is added platinum crucible stove at 1000 DEG C, rise to 1240-1300 DEG C of insulation 2h by the heat-up rate of 5 DEG C/min and found;
(3) glass melted is poured into shrend in 10 DEG C of clean-20 DEG C of water and become glass particle, move in 150 DEG C of baking ovens to dry and found for secondary;
(4) glass of having dried 1200 DEG C of-1225 DEG C of secondaries in platinum crucible are founded 0.5h, and stir, pour forming mould into after furnace temperature being down to 1180 DEG C of insulation 0.5h shaping, close stove after moving in 450--550 DEG C of annealing furnace the 0.5-3h that anneals and cool.
6. cameo glass preparation method according to claim 5, is characterized in that Annealing Temperature of Glass is 480--520 DEG C.
7. cameo glass preparation method according to claim 5, is characterized in that the glass annealing time is 0.5-1.5h.
CN201410706484.1A 2014-12-01 2014-12-01 Ultra-high-refractivity environment-friendly cameo glass and preparation method thereof Pending CN104445925A (en)

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Cited By (13)

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CN104909562A (en) * 2015-06-15 2015-09-16 河北省沙河玻璃技术研究院 High-refractivity environment-friendly ruby glass and preparation method thereof
CN105461222A (en) * 2016-01-12 2016-04-06 成都光明光电有限责任公司 High-refraction high-dispersion optical glass
CN106477877A (en) * 2016-10-17 2017-03-08 河北省沙河玻璃技术研究院 A kind of extra-high refraction high density environment-friendly type cameo glass and preparation method thereof
CN109576790A (en) * 2018-10-31 2019-04-05 成都鑫扬锦睿合成材料有限公司 A kind of synthetic cut stone circular cone moulding process
CN109694199A (en) * 2019-02-13 2019-04-30 安徽金冠玻璃有限责任公司 A kind of production technology of high grade of transparency vial
CN109734303A (en) * 2019-03-26 2019-05-10 成都奇彩珠宝有限公司 Height reflects colorless and transparent artificial synthesized jewel
CN109761579A (en) * 2019-03-26 2019-05-17 成都奇彩珠宝有限公司 Height refraction, high density colour synthetic jewel
CN109942184A (en) * 2019-04-12 2019-06-28 和县晶晶玻璃制品有限公司 A kind of high refraction crystal glass and its production technology
CN110128006A (en) * 2019-06-21 2019-08-16 鲁米星特种玻璃科技股份有限公司 A kind of environment-friendly type high refractive index holvi glass and preparation method thereof
CN110143758A (en) * 2019-06-24 2019-08-20 鲁米星特种玻璃科技股份有限公司 A kind of synthetic sapphire jade glass and preparation method thereof
CN111204974A (en) * 2020-02-28 2020-05-29 丽水博耀特种玻璃有限公司 Preparation process of toughened glass
WO2020203309A1 (en) * 2019-04-05 2020-10-08 日本電気硝子株式会社 Decorative glass article
JP2020172427A (en) * 2019-04-05 2020-10-22 日本電気硝子株式会社 Decorative glass article

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CN1569706A (en) * 2003-07-23 2005-01-26 上海仲堂特种光学材料科技发展有限公司 Optical glass with superhigh refractive index and its founding process
JP2011195358A (en) * 2010-03-18 2011-10-06 Ohara Inc Optical glass, optical element, and preform
CN103524042A (en) * 2013-09-24 2014-01-22 河北省沙河玻璃技术研究院 Environment-friendly type high-transmission high-refractivity crystalline glass and preparation method thereof
CN103708723A (en) * 2013-12-19 2014-04-09 河北省沙河玻璃技术研究院 Composite decoloring agent used for improving transparency and refractive index of lead-free high-refraction crystalline glass

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CN1569706A (en) * 2003-07-23 2005-01-26 上海仲堂特种光学材料科技发展有限公司 Optical glass with superhigh refractive index and its founding process
JP2011195358A (en) * 2010-03-18 2011-10-06 Ohara Inc Optical glass, optical element, and preform
CN103524042A (en) * 2013-09-24 2014-01-22 河北省沙河玻璃技术研究院 Environment-friendly type high-transmission high-refractivity crystalline glass and preparation method thereof
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Application publication date: 20150325