CN101445322A - Dense crown optical glass - Google Patents
Dense crown optical glass Download PDFInfo
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- CN101445322A CN101445322A CNA2008103066397A CN200810306639A CN101445322A CN 101445322 A CN101445322 A CN 101445322A CN A2008103066397 A CNA2008103066397 A CN A2008103066397A CN 200810306639 A CN200810306639 A CN 200810306639A CN 101445322 A CN101445322 A CN 101445322A
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- 239000005304 optical glass Substances 0.000 title claims abstract description 26
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 24
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 17
- 229910052787 antimony Inorganic materials 0.000 claims description 16
- 239000000470 constituent Substances 0.000 claims description 11
- 230000003287 optical effect Effects 0.000 abstract description 13
- 239000000126 substance Substances 0.000 abstract description 11
- 230000007704 transition Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 2
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Chemical compound O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 abstract 2
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 abstract 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract 1
- 230000003044 adaptive effect Effects 0.000 abstract 1
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Inorganic materials O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 abstract 1
- CMIHHWBVHJVIGI-UHFFFAOYSA-N gadolinium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Gd+3].[Gd+3] CMIHHWBVHJVIGI-UHFFFAOYSA-N 0.000 abstract 1
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum oxide Inorganic materials [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 abstract 1
- KTUFCUMIWABKDW-UHFFFAOYSA-N oxo(oxolanthaniooxy)lanthanum Chemical compound O=[La]O[La]=O KTUFCUMIWABKDW-UHFFFAOYSA-N 0.000 abstract 1
- NOTVAPJNGZMVSD-UHFFFAOYSA-N potassium monoxide Inorganic materials [K]O[K] NOTVAPJNGZMVSD-UHFFFAOYSA-N 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- YEAUATLBSVJFOY-UHFFFAOYSA-N tetraantimony hexaoxide Chemical compound O1[Sb](O2)O[Sb]3O[Sb]1O[Sb]2O3 YEAUATLBSVJFOY-UHFFFAOYSA-N 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten(VI) oxide Inorganic materials O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 abstract 1
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 abstract 1
- 239000011521 glass Substances 0.000 description 49
- 238000004031 devitrification Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 230000009477 glass transition Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 238000000748 compression moulding Methods 0.000 description 3
- 238000007723 die pressing method Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000006025 fining agent Substances 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 238000005816 glass manufacturing process Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- CWWARWOPSKGELM-SARDKLJWSA-N methyl (2s)-2-[[(2s)-2-[[2-[[(2s)-2-[[(2s)-2-[[(2s)-5-amino-2-[[(2s)-5-amino-2-[[(2s)-1-[(2s)-6-amino-2-[[(2s)-1-[(2s)-2-amino-5-(diaminomethylideneamino)pentanoyl]pyrrolidine-2-carbonyl]amino]hexanoyl]pyrrolidine-2-carbonyl]amino]-5-oxopentanoyl]amino]-5 Chemical compound C([C@@H](C(=O)NCC(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCSC)C(=O)OC)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CCC(N)=O)NC(=O)[C@H](CCC(N)=O)NC(=O)[C@H]1N(CCC1)C(=O)[C@H](CCCCN)NC(=O)[C@H]1N(CCC1)C(=O)[C@@H](N)CCCN=C(N)N)C1=CC=CC=C1 CWWARWOPSKGELM-SARDKLJWSA-N 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Glass Compositions (AREA)
Abstract
The invention aims to provide a dense crown optical glass which is free of P2O5, has a low transition temperature (Tg) and is adaptive to precision pressure-forming process. The components in weight percentages of the dense crown optical glass are as follows: 20% to 50% of SiO2; 5% to 30% of B2O3; 0% to 12% of ZnO; 10% to 41% of MgO, CaO, SrO and BaO; 0% to 7% of La2O3, Gd2O3 and Y2O3; 5% to 15% of Li2O, Na2O and K2O; 0% to 10% of AL2O3; 0% to 2% of ZrO2; 0% to 3% of TiO2, Nb2O5 and WO3; and 0% to 0.5% of Sb2O3. The dense crown optical glass contains borosilicate components and is free of P2O5 capable of producing harmful volatile substances. The nd of the dense crown optical glass is in the range from 1.55 to 1.65, and the vd is in the range from 55 to 64. The dense crown optical glass has low raw materials cost and low manufacturing cost, and can be further processed to prefabticated optical elements or optical elements when the Tg is below 525 DEG C.
Description
Technical field
The present invention relates to a kind of opticglass, particularly relate to a kind of specific refractory power (nd) between 1.55～1.65, Abbe number (vd) between 55～64, transition temperature (Tg) is at the dense-crown optical glass below 525 ℃.
Background technology
Along with the highly integrated and multifunction development of optical system, but portable class optical electron product such as digital camera, digital camera camera cell phone etc. obtain rapid popularization and application.In order to realize the high pixel of optical system, small portable, cheaply requirement, use the accurate die pressing technology development innovation that non-spherical lens carries out optical design and adopts direct weighting moulding optical glass device (mainly being non-spherical lens).Carry out secondary press with traditional glass blank spare that utilizes, and then the method for carrying out grinding and polishing manufacturing optical element is compared, opticglass accurate die pressing technology obtains the final finished element by directly the accurate prefabricated component of melten glass or glass being carried out precision press formation, after having omitted moulding lens are ground, step of polishing, thereby reduced manufacturing cost, alleviated carrying capacity of environment, and the method for accurate die pressing has unrivaled technology of traditional diamond-making technique and cost advantage on the manufacturing aspherical optical element, therefore the demand for the low softening point opticglass that is applicable to this precise compression molding method also increases sharply.Temperature in the time of can reducing mold pressing by the low glass of use transition temperature (Tg) reduces the die surface oxidation, prolongs die life, thereby reduces manufacturing cost.
JP2004315324 discloses a kind ofly to have low chromatic dispersion, low glass transformation temperature, is used in the optical glass that extrusion forming is used, nd is between 1.55～1.72, vd is 57～70, Tg is below 550 ℃, glass transition temperature (Ts) contains 28～50% P below 600 ℃ during its prescription forms
2O
5(mol%); CN1495142A discloses a kind of dense-crown optical glass of lead and arsenic free, its nd between 1.55～1.60, vd be 54～63, Tg below 500 ℃, but also contain a large amount of P2O5 in the component, its content has been up to 56wt%.
P
2O
5In Improving Glass Manufacturing Processes, can produce the volatilization of harmful substance P, be easy to cause acid pollution, with respect to SiO
2And B
2O
3, use P
2O
5Generate cognition as glass the cost of glass is obviously increased, be unfavorable for realizing the cost degradation of product.In addition, contain a large amount of P
2O
5Glass weather resistance poor.
CN1105955A discloses a kind of opticglass that is suitable for compression molding, and its nd is between 1.55～1.65, and vd is 55～63, and Tg is 600 ℃.Except glass transformation temperature than the height, B2O3 content is worked as B at 16～40wt% in its compositing formula
2O
3During too high levels, the volatilization in the fusion process can cause constant of glass and striped fluctuation, reduces the quality stability of glass, thereby causes complex manufacturing.
Summary of the invention
Technical problem to be solved by this invention provides a kind of P that do not contain
2O
5, have low transition temperature, be suitable for carrying out the dense-crown optical glass of precision press formation.
The technical scheme that technical solution problem of the present invention adopts is: dense-crown optical glass, the weight percent content of its constituent is: SiO
2: 20～50%, B
2O
3: 5～30%, the total content sum of ZnO:0～12%, MgO, CaO, SrO and BaO be 10～41%, La
2O
3, Gd
2O
3And Y
2O
3The total content sum be 0～7%, Li
2O, Na
2O and K
2The total content sum of O is 5～15%, AL
2O
3: 0～10%, ZrO
2: 0～2%, TiO
2, Nb
2O
5And WO
3The total content sum be 0～3%, Sb
2O
3: 0～0.5%.
Further, the weight percent content of its constituent is: SiO
2: 20～50%, B
2O
3: 5～30%, the total content sum of ZnO:0～12%, MgO, CaO, SrO and BaO be 10～41%, BaO:3～38%, La
2O
3, Gd
2O
3And Y
2O
3The total content sum be 0～7%, Li
2O, Na
2O and K
2The total content sum of O is 5～15%, Li
2O:4～10%, AL
2O
3: 0～10%, ZrO
2: 0～2%, TiO
2, Nb
2O
5And WO
3The total content sum be 0～3%, Sb
2O
3: 0～0.5%.
Further, the weight percent content of its constituent is: SiO
2: 30～47%, B
2O
3: 5～30%, the total content sum of ZnO:0～12%, MgO, CaO, SrO and BaO be 10～41%, BaO:3～38%, La
2O
3, Gd
2O
3And Y
2O
3The total content sum be 0～7%, Li
2O, Na
2O and K
2The total content sum of O is 5～15%, Li
2O:4～10%, AL
2O
3: 0～10%, ZrO
2: 0～2%, TiO
2, Nb
2O
5And WO
3The total content sum be 0～3%, Sb
2O
3: 0～0.5%.
Further, the weight percent content of its constituent is: SiO
2: 20～50%, B
2O
3: 6～26%, the total content sum of ZnO:0～12%, MgO, CaO, SrO and BaO be 10～41%, BaO:3～38%, La
2O
3, Gd
2O
3And Y
2O
3The total content sum be 0～7%, Li
2O, Na
2O and K
2The total content sum of O is 5～15%, Li
2O:4～10%, AL
2O
3: 0～10%, ZrO
2: 0～2%, TiO
2, Nb
2O
5And WO
3The total content sum be 0～3%, Sb
2O
3: 0～0.5%.
Further, the weight percent content of its constituent is: SiO
2: 20～50%, B
2O
3: 5～30%, the total content sum of ZnO:2～9%, MgO, CaO, SrO and BaO be 10～41%, BaO:3～38%, La
2O
3: 0～7%, Li
2O:4～10%, Na
2O:0～5%, K
2O:0～5%, AL
2O
3: 1～8%, ZrO
2: 0～2%, TiO
2, Nb
2O
5And WO
3The total content sum be 0～3%, Sb
2O
3: 0～0.1%.
Further, the weight percent content of its constituent is: SiO
2: 20～50%, B
2O
3: 5～30%, the total content sum of ZnO:2～9%, MgO, CaO, SrO and BaO be 10～41%, BaO:3～38%, La
2O
3: 1～5%, Li
2O:4～10%, Na
2O:0～5%, K
2O:0～5%, AL
2O
3: 3～7%, ZrO
2: 0～2%, TiO
2, Nb
2O
5And WO
3The total content sum be 0～3%, Sb
2O
3: 0～0.1%.
Further, the weight percent content of its constituent is: SiO
2: 30～47%, B
2O
3: 6～26%, ZnO:2～9%, BaO:3～38%, La
2O
3: 1～5%, Li
2O:4～10%, Na
2O:0～5%, K
2O:0～5%, AL
2O
3: 3～7%, ZrO
2: 0～2%, TiO
2, Nb
2O
5And WO
3The total content sum be 0～3%, Sb
2O
3: 0～0.1%.
Further, the weight percent content of its constituent is: SiO
2: 30～47%, B
2O
3: 6～26%, ZnO:2～9%, BaO:10～35%, La
2O
3: 1～5%, Li
2O:4～10%, Na
2O:0～5%, K
2O:0～5%, AL
2O
3: 3～7%, ZrO
2: 0～2%, TiO
2, Nb
2O
5And WO
3The total content sum be 0～3%, Sb
2O
3: 0～0.1%
Further, the weight percent content of its constituent is: SiO
2: 20～50%, B
2O
3: 5～30%, BaO:3～38%, Li
2O:4～10%.
Further, the weight percent content of its constituent is: SiO
2: 30～47%, B
2O
3: 6～26%, BaO:10～35%, Li
2O:4～10%.
The invention has the beneficial effects as follows: adopt the borosilicate system component, do not add the P that can produce the harmful substance volatilization
2O
5, nd is between 1.55～1.65, and vd is between 55～64.Frit of the present invention and low cost of manufacture, Tg can be made into optical precast product or optical element below 525 ℃.
Embodiment
Each component introducing reason of opticglass of the present invention and weight percent content setting range are as follows:
SiO
2Be the neccessary composition that forms glass network, SiO
2Can improve high temperature viscosity, devitrification resistance and the chemical stability of glass, its content range is set in 20～50%, when its content is lower than 20%, the chemical stability variation of glass, optical constant is difficult to reach the invention requirement, when content surpassed 50%, the glass melting variation was difficult to the softening temperature that keeps low.So SiO
2Content is set between 20～50%, and preferred content is 30～47%.
B
2O
3Also be the neccessary composition that consists of glass network, an amount of introducing can improve the meltdown property of glass, is conducive to glass and has low softening temperature, improves the resistance to water of glass, and B
2O
3When content is lower than 5%, the obvious variation of the meltdown property of glass, refractive index reduces, and when content was higher than 30%, the Abbe number of glass can not reach the chemical stability variation of desired value and glass, so B
2O
3Content is 5～30%, and preferred content is 6～26%.
ZnO can reduce glass melting temperature, liquidus temperature and glass transformation temperature, improves the chemical durability of glass, reduces the tendency towards devitrification of glass, and its content is 0～12%, and preferred content is 2～9%.
The importing of alkaline earth oxide MgO, CaO, SrO and BaO can be adjusted optical constant, improves the stability of glass, and reduces the glass high temperature viscosity, increases the low temperature viscosity of glass, so that glass is easy to produce.Wherein BaO has outstanding role to improving glass refraction, improve devitrification resistance and reducing liquidus temperature, and it is with low cost, so the alkaline earth metal oxide total content is controlled at 10～41%, and wherein BaO content is 3～38%, and preferred content is 10～35%.
La
2O
3Having higher refractive index and lower chromatic dispersion, is the active ingredient that improves glass refraction, with B
2O
3Mix and have the devitrification resistance property that can also improve glass, improve the chemical stability of glass.Gd
2O
3And Y
2O
3Have and La
2O
3Identical effect, but the too high meeting of use amount causes glass transition temperature to raise, thereby La of the present invention
2O
3, Gd
2O
3And Y
2O
3Total content be 0～7%, La wherein
2O
3Content is 0～7%, and preferred content is 1～5%.
Li
2O can significantly reduce the transition temperature of glass, improve glass melting, when its content less than 4% the time, can not reach transition temperature required for the present invention, but too much importing can make the devitrification resistance and the obvious variation of chemical stability of glass, so its content is controlled at 4～10%.Except adding Li
2Interpolation Na that also can be suitable beyond the O
2O and K
2O reduces the transition temperature of glass, but its effect is not as Li
2O, Na
2O content is controlled at 0～5%, K
2O is controlled at 0～5%, Li
2O, Na
2O, K
2The total content of O is 5～15%.
AL
2O
3Be intermediate oxide, an amount of introducing can improve glass high temperature viscosity and chemical durability, and can reduce the tendency towards devitrification of liquidus temperature and glass, AL
2O
3When content surpassed 10%, the refractive index of glass reduced and devitrification resistance stability obviously descends, and transition temperature and softening temperature raise, AL
2O
3Content is controlled at 0～10%, and is preferred 1～8%, and more preferably 3～7%.
ZrO
2The chemical stability of glass can be increased in the present invention, and when using the zirconia refractory molten glass, corrosion can be alleviated refractory materials, but ZrO
2Use glass transformation temperature will be raise, therefore limiting its content is 0～2%.
In glass, introduce TiO
2, Nb
2O
5And WO
3Can significantly improve refractive index and chromatic dispersion, and can improve the chemical stability of glass, but these composition use amounts too much can make the softening temperature of glass raise, and the ultraviolet permeability of glass is descended, therefore its total content is defined as 0～3%.
Sb
2O
3Can be used as the fining agent of glass, if but add the life-span that too much can affect pressurizing mould.Therefore, its content is set in 0～0.5%, preferred〉0～0.1%.
Below narrate embodiments of the invention, but the present invention not merely is defined in these embodiment.
Table 1, table 2 and table 3 are 15 embodiment of the present invention, have listed the prescription of each embodiment in the table and have formed pairing specific refractory power (nd), Abbe number (vd), glass transition temp (Tg), glass transition temperature (Ts).
Table 1
Table 2
Table 3
With the raw material of 15 embodiment component correspondences shown in the table for example oxide compound, oxyhydroxide, carbonate, nitrate etc. respectively in accordance with regulations ratio weigh, be mixed into admixtion, put in the platinum crucible, according to the meltbility of forming, under 1050～1400 ℃ of temperature through fusing, clarification, stir, after homogenizing, just can obtain melten glass of the present invention
As can be seen from the above embodiments, the nd of opticglass of the present invention is 1.55～1.65, and vd is 55～64, and Tg can reach below 525 ℃, demonstrates fabulous low softening character, is suitable as optical glass for precision profiling.Use optical glass of the present invention, can make prefabricated part for precise compression molding, and the optical element that is made of optical glass of the present invention such as various lens etc. can be provided.
Claims (10)
- [claim 1] dense-crown optical glass is characterized in that, the weight percent content of its constituent is: SiO 2: 20～50%, B 2O 3: 5～30%, the total content sum of ZnO:0～12%, MgO, CaO, SrO and BaO be 10～41%, La 2O 3, Gd 2O 3And Y 2O 3The total content sum be 0～7%, Li 2O, Na 2O and K 2The total content sum of O is 5～15%, AL 2O 3: 0～10%, ZrO 2: 0～2%, TiO 2, Nb 2O 5And WO 3The total content sum be 0～3%, Sb 2O 3: 0～0.5%.
- [claim 2] dense-crown optical glass as claimed in claim 1 is characterized in that, the weight percent content of its moiety is:SiO 2: 20～50%, B 2O 3: 5～30%, the total content sum of ZnO:0～12%, MgO, CaO, SrO and BaO be 10～41%, BaO:3～38%, La 2O 3, Gd 2O 3And Y 2O 3The total content sum be 0～7%, Li 2O, Na 2O and K 2The total content sum of O is 5～15%, Li 2O:4～10%, AL 2O 3: 0～10%, ZrO 2: 0～2%, TiO 2, Nb 2O 5And WO 3The total content sum be 0～3%, Sb 2O 3: 0～0.5%.
- [claim 3] dense-crown optical glass as claimed in claim 1 is characterized in that, the weight percent content of its moiety is:SiO 2: 30～47%, B 2O 3: 5～30%, the total content sum of ZnO:0～12%, MgO, CaO, SrO and BaO be 10～41%, BaO:3～38%, La 2O 3, Gd 2O 3And Y 2O 3The total content sum be 0～7%, Li 2O, Na 2O and K 2The total content sum of O is 5～15%, Li 2O:4～10%, AL 2O 3: 0～10%, ZrO 2: 0～2%, TiO 2, Nb 2O 5And WO 3The total content sum be 0～3%, Sb 2O 3: 0～0.5%.
- [claim 4] dense-crown optical glass as claimed in claim 1 is characterized in that, the weight percent content of its moiety is:SiO 2: 20～50%, B 2O 3: 6～26%, the total content sum of ZnO:0～12%, MgO, CaO, SrO and BaO be 10～41%, BaO:3～38%, La 2O 3, Gd 2O 3And Y 2O 3The total content sum be 0～7%, Li 2O, Na 2O and K 2The total content sum of O is 5～15%, Li 2O:4～10%, AL 2O 3: 0～10%, ZrO 2: 0～2%, TiO 2, Nb 2O 5And WO 3The total content sum be 0～3%, Sb 2O 3: 0～0.5%.
- [claim 5] dense-crown optical glass as claimed in claim 1 is characterized in that, the weight percent content of its moiety is:SiO 2: 20～50%, B 2O 3: 5～30%, the total content sum of ZnO:2～9%, MgO, CaO, SrO and BaO be 10～41%, BaO:3～38%, La 2O 3: 0～7%, Li 2O:4～10%, Na 2O:0～5%, K 2O:0～5%, AL 2O 3: 1～8%, ZrO 2: 0～2%, TiO 2, Nb 2O 5And WO 3The total content sum be 0～3%, Sb 2O 3: 0～0.1%.
- [claim 6] dense-crown optical glass as claimed in claim 1 is characterized in that, the weight percent content of its moiety is:SiO 2: 20～50%, B 2O 3: 5～30%, the total content sum of ZnO:2～9%, MgO, CaO, SrO and BaO be 10～41%, BaO:3～38%, La 2O 3: 1～5%, Li 2O:4～10%, Na 2O:0～5%, K 2O:0～5%, AL 2O 3: 3～7%, ZrO 2: 0～2%, TiO 2, Nb 2O 5And WO 3The total content sum be 0～3%, Sb 2O 3: 0～0.1%.
- [claim 7] dense-crown optical glass as claimed in claim 1 is characterized in that, the weight percent content of its moiety is:SiO 2: 30～47%, B 2O 3: 6～26%, ZnO:2～9%, BaO:3～38%, La 2O 3: 1～5%, Li 2O:4～10%, Na 2O:0～5%, K 2O:0～5%, AL 2O 3: 3～7%, ZrO 2: 0～2%, TiO 2, Nb 2O 5And WO 3The total content sum be 0～3%, Sb 2O 3: 0～0.1%.
- [claim 8] dense-crown optical glass as claimed in claim 1 is characterized in that, the weight percent content of its moiety is:SiO 2: 30～47%, B 2O 3: 6～26%, ZnO:2～9%, BaO:10～35%, La 2O 3: 1～5%, Li 2O:4～10%, Na 2O:0～5%, K 2O:0～5%, AL 2O 3: 3～7%, ZrO 2: 0～2%, TiO 2, Nb 2O 5And WO 3The total content sum be 0～3%, Sb 2O 3: 0～0.1%.
- [claim 9] dense-crown optical glass as claimed in claim 1 is characterized in that the weight percent content of its moiety is: SiO 2: 20～50%, B 2O 3: 5～30%, BaO:3～38%, Li 2O:4～10%.
- [claim 10] dense-crown optical glass as claimed in claim 1 is characterized in that the weight percent content of its moiety is: SiO 2: 30～47%, B 2O 3: 6～26%, BaO:10～35%, Li 2O:4～10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008103066397A CN101445322A (en) | 2008-12-30 | 2008-12-30 | Dense crown optical glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008103066397A CN101445322A (en) | 2008-12-30 | 2008-12-30 | Dense crown optical glass |
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| CN101445322A true CN101445322A (en) | 2009-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008103066397A Pending CN101445322A (en) | 2008-12-30 | 2008-12-30 | Dense crown optical glass |
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| CN (1) | CN101445322A (en) |
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| CN102311228A (en) * | 2011-06-30 | 2012-01-11 | 湖北新华光信息材料有限公司 | Optical glass |
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| CN105271714A (en) * | 2014-06-26 | 2016-01-27 | 成都光明光电股份有限公司 | Optical glass and optical element |
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Application publication date: 20090603 |