CN102015562A - Optical glass - Google Patents

Optical glass Download PDF

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Publication number
CN102015562A
CN102015562A CN2009801165865A CN200980116586A CN102015562A CN 102015562 A CN102015562 A CN 102015562A CN 2009801165865 A CN2009801165865 A CN 2009801165865A CN 200980116586 A CN200980116586 A CN 200980116586A CN 102015562 A CN102015562 A CN 102015562A
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composition
glass
opticglass
sio
content
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永冈敦
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Ohara Inc
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Ohara Inc
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • 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
    • 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
    • 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
    • C03C3/12—Silica-free oxide glass compositions
    • C03C3/14—Silica-free oxide glass compositions containing boron

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  • 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)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Glass Compositions (AREA)

Abstract

Disclosed is an optical glass containing Bi2O3, which has a characteristic Abbe number [Nu d], while maintaining an extremely high partial dispersion ratio [Theta g, F]. The optical glass contains an SiO2 component and/or a B2O3 component, while containing 40-90% by mass of a Bi2O3 component in terms of oxides. The optical glass has a partial dispersion ratio [Theta g, F] of not less than 0.63 and an Abbe number [Nu d] of not more than 27, while satisfying the following relation: partial dispersion ratio [Theta g, F] > -0.0108x Abbe number [Nu d] + 0.8529.

Description

Opticglass
Technical field
The present invention relates to have great partial dispersion than [θ g, F] bismuth be opticglass, being specifically related to partial dispersion is more than 0.63 than [θ g, F] and Abbe number [vd] is below 27, and satisfy the opticglass of partial dispersion than the value of [θ g, F]＞-0.0108 * [vd]+0.8529.
Background technology
Usually, the lens combination of opticinstrument is that a plurality of glass lenss with different optical character are made up and design.In recent years,, will have the opticglass of out of use optical characteristics in the past, use as sphere and non-spherical lens etc. in order further to enlarge the design freedom of diversified opticinstrument lens combination.Particularly developing the glass that has various specific refractory poweres, chromatic dispersion tendency when carrying out optical design in order to reduce aberration.Wherein, particularly have the opticglass of special partial dispersion, can play the effect of remarkable correction aberration, and can enlarge the degree of freedom of optical design, therefore developing various glass than [θ g, F].
The partial dispersion of expression short wavelength zone partial dispersion than [θ g, F] as the formula (1).
θg，F＝(n g-n F)/(n F-n c)……(1)
In the common opticglass, the partial dispersion of the partial dispersion in expression short wavelength zone is than roughly being linear inversely prroportional relationship between [θ g, F] and the Abbe number [vd], and the glass that does not obviously meet this relation is known as abnormal dispersion glass.With partial dispersion than [θ g, F] be the longitudinal axis, be on the orthogonal coordinate of transverse axis with Abbe number [vd], with [θ g with NSL7 and PBM2, F] and 2 straight lines that are formed by connecting obtaining of [vd] mapping (plot), represent the inversely prroportional relationship between partial dispersion ratio and the Abbe number, be called standard lines (normal line) (with reference to Fig. 1).Normal glass (normal glass) as the standard lines benchmark, according to the difference of opticglass manufacturers and difference, (NSL7 and PBM2 are the opticglass of the オ of Co., Ltd. Ha ラ society system but each company all defines standard lines with about equally obliquity and section, the Abbe number of PBM2 [vd] is 36.3, partial dispersion is than [θ g, F] be 0.5828, the Abbe number of NSL7 [vd] is 60.5, partial dispersion is 0.5436 than [θ g, F]).Anomalous dispersion is what to depart from as index to y direction from above-mentioned standard lines.When these abnormal dispersion glass lens and other lens are used in combination, the aberration in can revising from ultraviolet ray to ultrared wide wavelength region.
Aforesaid abnormal dispersion glass is disclosed in the various documents.
Disclose in the patent documentation 1～5 that to have partial dispersion be the opticglass of particular value than [θ g, F].Disclose at SiO in the patent documentation 1～3 2-B 2O 3-ZrO 2-Nb 2O 5System, SiO 2-ZrO 2-Nb 2O 5-Ta 2O 5In the opticglass of system, in being 28～55 middle chromatic dispersion field, Abbe number [vd] has the opticglass of less specific partial dispersion than [θ g, F].SiO is disclosed in the patent documentation 4,5 2-B 2O 3-TiO 2-Al 2O 3System, Bi 2O 3-B 2O 3The glass of system, and disclose in Abbe number [vd] is 32～55 middle chromatic dispersion field and have the opticglass of bigger specific partial dispersion than [θ g, F].Partial dispersion is than [θ g, F] maximum glass system in these opticglass, is partial dispersion than the opticglass that is about 0.59 patent documentation 5, but this partial dispersion is than the requirement that can not fully satisfy in recent years the optical design aspect.
Patent documentation 1: Japanese kokai publication hei 10-130033 communique
Patent documentation 2: Japanese kokai publication hei 10-265238 communique
No. 01/072650 communique of patent documentation 3:WO
Patent documentation 4: TOHKEMY 2003-313047 number
Patent documentation 5: Japanese kokai publication hei 9-20530 number
Summary of the invention
The present invention finishes in view of above problem, and purpose is to be provided at and contains Bi 2O 3Opticglass in, have great partial dispersion than [θ g, F], have the opticglass of the Abbe number [vd] of eigenwert simultaneously.
The inventor furthers investigate to achieve these goals, and the result has obtained containing Bi 2O 3The specific composition field of opticglass in, have the major part chromatic dispersion than [θ g, F], and have the opticglass of the Abbe number [vd] that does not have so far, thereby finished the present invention.More specifically, the invention provides following content.
(1) a kind of opticglass, it contains SiO 2Composition and/or B 2O 3Composition, and, contain 40～90% Bi in the quality % of oxide compound benchmark 2O 3Composition, partial dispersion than [θ g, F] is more than 0.63, Abbe number [vd] is below 27,
And this opticglass satisfies partial dispersion than [θ g, F]＞-0.0108 * [vd]+0.8529.
(2) above-mentioned (1) described opticglass wherein, in the quality % of oxide compound benchmark, contains 64～90% Bi 2O 3Composition.
(3) above-mentioned (1) or (2) described opticglass, wherein, in the quality % of oxide compound benchmark, Rn 2The content of O composition (Rn is selected among Li, Na, K, Rb, the Cs more than one) is with respect to Bi 2O 3The ratio of the content of composition is more than 0.01.
(4) each described opticglass in above-mentioned (1) to (3), wherein, in the quality % of oxide compound benchmark, contain following each composition:
SiO 20%～20%; And/or
B 2O 30%～30%; And/or
Rn 2O surpasses 0% and be below 25%; And/or
RO 0%～35%; And/or
Bi 2O 3 64％～90％，
Wherein, SiO 2+ B 2O 3Surpass 0%.
(Rn is selected among Li, Na, K, Rb, the Cs more than one, and R is selected among Mg, Ca, Sr, Ba, the Zn more than one.)
(5) each described opticglass in above-mentioned (1) to (4) wherein, in the quality % of oxide compound benchmark, contains and surpasses 0% K 2The O composition.
(6) a kind of attrition process preformed articles and/or preformed articles for precise pressurization shaping, it is made by each described opticglass in above-mentioned (1) to (5).
(7) a kind of optical element, it is that above-mentioned (6) described attrition process is ground and got with preformed articles.
(8) a kind of optical element, it is that above-mentioned (6) described preformed articles for precise pressurization shaping is carried out precise pressurization shaping and gets.
Opticglass of the present invention is by adopting technique scheme, and it is more than 0.63 than [θ g, F] that partial dispersion can be provided and Abbe number [vd] is below 27, and at the exceedingly useful anomalous dispersion glass of the design aspect of lens combination.
Description of drawings
Fig. 1 is being the longitudinal axis with partial dispersion than [θ g, F], is being the synoptic diagram of the standard lines in the orthogonal coordinate of transverse axis with Abbe number [vd].
Embodiment
Below, the embodiment of opticglass of the present invention is described.
[glass ingredient]
The compositing range that constitutes each composition of opticglass of the present invention is as described below.Each composition is in the quality % of oxide compound benchmark.Wherein, " oxide compound benchmark " refers to, at oxide compound that hypothesis is used as the raw material of glass constituent of the present invention, composite salt, metal fluoride etc. during in fusion under the situation of whole decomposition and inversion as oxide compound, total mass with the oxide compound of this generation is 100 quality %, the composition of each contained composition in the glass.The total amount of F when part or all of above-mentioned oxide compound is replaced into fluorochemical is meant, accurate to form 100% is benchmark with above-mentioned oxide-base, the content of representing with quality % when the content that may be present in the fluorine in the glass component of the present invention calculates as the F atom.
＜about neccessary composition, optional member 〉
Bi 2O 3Composition is more effective than [θ g, F], low chromatic dispersionization to increasing partial dispersion, to low Tgization, raising water tolerance etc. effectively, is indispensable composition in the glass of the present invention also.But if its too high levels, then the easy deficient in stability of glass if content is very few, then is difficult to obtain above-mentioned technique effect.Therefore, Bi 2O 3The content lower value of composition is preferably 40%, more preferably 45%, most preferably is 64%, and higher limit is preferably 95%, more preferably 90%, most preferably is 85%.
SiO 2Composition is to have the optional member that improves transmittance, increase stability, glass, low chromatic dispersion effect.But, if its too high levels then reduces partial dispersion easily than [θ g, F], the also easy variation of meltbility.Therefore, SiO 2The higher limit of the content of composition is preferably 20%, more preferably 15%, most preferably is 10%.
B 2O 3Composition is to have the stability, glass of increasing, improve and keep the optional member of partial dispersion than [θ g, F] effect.But, if its too high levels then reduces stability, glass easily, and low easily chromatic dispersionization.Therefore, B 2O 3The higher limit of the content of composition is preferably 30%, more preferably 23%, most preferably is 15%.
As mentioned above, SiO 2And B 2O 3Be respectively optional member, but preferably at least a content among both surpass 0%.But if their content sum is excessive, the partial dispersion that then is difficult to obtain expecting is than [θ g, F] and Abbe number [vd].Therefore, B 2O 3And SiO 2The lower value of total content be preferably and surpass 0, more preferably 0.5%, most preferably be 1%.And, B 2O 3And SiO 2The higher limit of content sum be preferably 50%, more preferably 45%, most preferably be 35%.
Li 2The O composition is to have the optional member that increases stability, glass, low Tgization effect.But,, reduce physical strength easily if its too high levels then reduces stability, glass easily.Therefore, Li 2The higher limit of the content of O composition is preferably 25%, more preferably 20%, most preferably is 15%.
Na 2The O composition is to coming the adjustment member chromatic dispersion than [θ g, F] and the useful optional member of Abbe number [vd] by adjusting its content.But,, reduce chemical durability and physical strength easily if its too high levels then reduces stability, glass easily.Therefore, Na 2The higher limit of the content of O composition is preferably 25%, more preferably 20%, most preferably is 15%.And, though even do not contain Na 2The O composition also can also can be made has the glass that the present invention expects optical characteristics, but in order to adjust above-mentioned partial dispersion ratio and Abbe number, Na easily 2The content of O composition be preferably surpass 0%, more preferably more than 1%, most preferably be more than 2%.
K 2The O composition is to coming the adjustment member chromatic dispersion than [θ g, F] and the useful optional member of Abbe number [vd] by adjusting its content.This effect is especially remarkable in basic metal.But,, significantly reduce chemical durability and physical strength easily if its too high levels then reduces stability, glass easily.Therefore, K 2The higher limit of the content of O composition is preferably 25%, more preferably 20%, most preferably is 15%.And, even do not contain K 2The O composition also can be made and has the glass that the present invention expects optical characteristics, but for adjust easily above-mentioned partial dispersion than and Abbe number, K 2The content of O composition be preferably surpass 0%, more preferably more than 1%, most preferably be more than 2%.
Rb 2The O composition is to coming the adjustment member chromatic dispersion than [θ g, F] and the useful optional member of Abbe number [vd] by adjusting its content.But, Rb 2O composition output is little, is not suitable for use in the raw material of opticglass, if excessive containing, then with same chemical durability and the physical strength of reducing easily of other alkali metal component.Therefore, Rb 2The higher limit of the content of O composition is preferably 25%, more preferably 20%, most preferably is 15%.
Cs 2The O composition is to coming the adjustment member chromatic dispersion than [θ g, F] and the useful optional member of Abbe number [vd] by adjusting its content.But, if its too high levels, then with same chemical durability and the physical strength of reducing easily of other alkali metal component.Therefore, Rb 2The upper content limit value of O composition is preferably 25%, more preferably 20%, most preferably is 15%.
As mentioned above, Rn 2O composition (Rn is selected among Li, Na, K, Rb, the Cs one or more) is the useful component that the partial dispersion as the feature of glass of the present invention is adjusted to expected value than [θ g, F] and Abbe number [vd].But if their too high levels, the partial dispersion that then is difficult on the contrary realize expecting is significantly damaged the stability of glass than [θ g, F], Abbe number [vd].Therefore, Rn 2The lower value of O composition (Rn is selected among Li, Na, K, Rb, the Cs more than one) is preferably and surpasses 0, more preferably 0.5%, most preferably is 1%.And, Rn 2The upper content limit value of O composition (Rn is selected among Li, Na, K, Rb, the Cs more than one) is preferably 25%, more preferably 20%, most preferably is 15%.
Rn 2O composition (Rn is selected among Li, Na, K, Rb, the Cs one or more) and Bi 2O 3Relation between the content of composition is that performance is as the partial dispersion of feature of the present invention specific important factor than [θ g, F] and Abbe number [vd].Especially recent findings is by making Rn 2O composition and Bi 2O 3Become the ratio of branch to be in the specified range, bring into play above-mentioned specificity easily.Rn 2O 3Composition/Bi 2O 3The lower limit of the value of composition is preferably 0.01, more preferably 0.029, most preferably is 0.058.And, Rn 2O 3Composition/Bi 2O 3The upper limit of composition is preferably 0.5, more preferably 0.2, most preferably is 0.16.
Y 2O 3Composition is the optional member that is used to adjust the glass chromatic dispersion.But, if its too high levels then reduces stability, glass easily.Therefore, Y 2O 3The higher limit of the content of composition is preferably 10%, more preferably 5%, most preferably is 3%.
La 2O 3Composition is the optional member that is used to make the low chromatic dispersionization of glass.But, if its too high levels then reduces stability, glass easily.Therefore, La 2O 3The higher limit of the content of composition is preferably 10%, more preferably 5%, most preferably is 3%.
Gd 2O 3Composition is the optional member that is used to adjust the glass chromatic dispersion.But, if its too high levels then reduces stability, glass easily.Therefore, Gd 2O 3The higher limit of the content of composition is preferably 10%, more preferably 5%, most preferably is 3%.
Yb 2O 3Composition is the optional member that is used to adjust the glass chromatic dispersion.But, if its too high levels then reduces stability, glass easily.Therefore, Yb 2O 3The higher limit of the content of composition is preferably 10%, more preferably 5%, most preferably is 3%.
Al 2O 3Composition is the optional member that is used to improve glass chemistry weather resistance and physical strength.But, if its too high levels then reduces meltbility easily.Therefore, Al 2O 3The higher limit of the content of composition is preferably 10%, more preferably 5%, most preferably is 3%.
Ta 2O 5Composition is to improving the useful optional member of stability, glass.But, if its too high levels then reduces the stability of glass easily, and cost is significantly increased.Therefore, Ta 2O 5The higher limit of the content of composition is preferably 10%, more preferably 5%, most preferably is 3%.
Nb 2O 5Composition is than [θ g, F] useful optional member to the partial dispersion that improves glass.But, if its too high levels then reduces stability, glass easily.Therefore, Nb 2O 5The higher limit of the content of composition is preferably 10%, more preferably 5%, most preferably is 3%.
WO 3Composition is than [θ g, F], the low useful optional member of Tgization to the partial dispersion that improves glass.But, if its too high levels then reduces stability, glass easily.Therefore, WO 3The higher limit of the content of composition is preferably 10%, more preferably 5%, most preferably is 3%.
TiO 2Composition is the optional member useful to the high chromatic dispersionization of glass.But, if its too high levels then reduces stability, glass easily.Therefore, TiO 2The higher limit of the content of composition is preferably 10%, more preferably 5%, most preferably is 3%.
ZrO 2Composition is to improving the useful optional member of chemical durability, physical strength of glass.But, if its too high levels then reduces stability, glass easily.Therefore, ZrO 2The higher limit of the content of composition is preferably 10%, more preferably 5%, most preferably is 3%.
The ZnO composition is to improving the useful optional member of devitrification resistance of glass.But if its too high levels, the partial dispersion that then is difficult to obtain expecting is than [θ g, F] and Abbe number [vd].Therefore, the higher limit of the content of ZnO composition is preferably 20%, more preferably 15%, most preferably is 10%.And, even do not contain the ZnO composition, also can make opticglass with desired optical of the present invention, but for adjust easily above-mentioned partial dispersion than and Abbe number, the content of ZnO composition be preferably surpass 0%, more preferably more than 0.5%, most preferably be more than 1%.
The MgO composition is the optional member useful to the low chromatic dispersionization of glass.But if its too high levels, the then easy stability that significantly reduces glass is handled generation devitrification easily through reheat.Therefore, the higher limit of the content of MgO composition is preferably 20%, more preferably 15%, most preferably is 10%.
The CaO composition is to the low chromatic dispersionization of glass and improves the useful optional member of devitrification resistance.But, if its too high levels then significantly reduces devitrification resistance easily.Therefore, the higher limit of the content of CaO composition is preferably 20%, more preferably 15%, most preferably is 10%.
The SrO composition is to improving the useful optional member of devitrification resistance.But if its too high levels then significantly reduces devitrification resistance easily, and the partial dispersion that is difficult to obtain expecting is than [θ g, F], Abbe number [vd].Therefore, the higher limit of the content of SrO composition is preferably 20%, more preferably 15%, most preferably is 10%.
The BaO composition is the optional member that is used to improve devitrification resistance.But if its too high levels, the partial dispersion that then is difficult to obtain expecting is than [θ g, F], Abbe number [vd].Therefore, the higher limit of the content of BaO composition is preferably 20%, more preferably 15%, most preferably is 10%.
RO composition (R is selected among Mg, Ca, Sr, Ba, the Zn one or more) is the useful component that is used to adjust all rerum naturas such as devitrification resistance, chromatic dispersion, physical strength.But if its total amount is too high, the partial dispersion that then is difficult to obtain expecting is than [θ g, F], Abbe number [vd].The higher limit of RO composition is preferably 35%, more preferably 30%, most preferably is 25%.On the other hand, also might not realize desired optical of the present invention even do not contain the RO composition, but in order to improve devitrification resistance, the lower value of the content of RO composition is preferably and surpasses 0%, more preferably 0.5%, most preferably is 1%.
GeO 2Composition is the composition that is used to improve the devitrification resistance of glass, is the composition that can add arbitrarily.But, if its too high levels then reduces meltbility easily.Therefore, GeO 2The higher limit of the content of composition is preferably 20%, more preferably 15%, most preferably is 10%.
P 2O 5Composition is to be used to improve the useful composition of glass transmittance, is the composition that can add arbitrarily.But, if its too high levels then reduces meltbility easily.Therefore, P 2O 5The higher limit of the content of composition is preferably 10%, more preferably 5%, most preferably is 3%.
TeO 2Composition has the effect that promotes glass clarifying, is the composition that can add arbitrarily.But, if its too high levels then reduces devitrification resistance easily.Therefore, TeO 2The higher limit of the content of composition is preferably 20%, more preferably 15%, most preferably is 10%.
Sb 2O 3Composition has the effect that promotes glass clarifying, is the composition that can add arbitrarily.But, if its too high levels then can reduce devitrification resistance.Therefore, Sb 2O 3The higher limit of the content of composition is preferably 3%, more preferably 2%, most preferably is 1%.
CeO 2Composition has the effect of the partial dispersion of increase glass than [θ g, F], is the composition that can add arbitrarily.But, if its too high levels then significantly reduces transmittance easily.Therefore, CeO 2The higher limit of the content of composition is preferably 3%, more preferably 2%, most preferably is 1%.
Tl 2O 3Composition has the effect of the partial dispersion of adjustment glass than [θ g, F], Abbe number [vd], is the composition that can add arbitrarily.But, if its too high levels then significantly reduces transmittance easily.Therefore, Tl 2O 3The higher limit of the content of composition is preferably 10%, more preferably 5%, most preferably is 3%.
F is low chromatic dispersionization, the effective composition of raising meltbility to glass.But, if its too high levels then significantly reduces devitrification resistance easily.Therefore, the total amount of F when part or all of above-mentioned oxide compound is replaced into fluorochemical, accurate to form 100 quality % be benchmark with above-mentioned oxide-base, when calculating as the F atom, higher limit in the content of quality % is preferably 10%, more preferably 5%, most preferably is 1%.More preferably do not contain-F.
＜composition〉about not containing
In the scope of not damaging glass performance of the present invention, can in opticglass of the present invention, add other composition as required.But, various transiting metal components such as the V except Ti, Cr, Mn, Fe, Co, Ni, Cu, Ag and Mo, no matter containing separately respectively still under the compound situation about containing on a small quantity, all can make glass coloring, the specific wavelength that has in visibility region produces the character that absorbs, therefore, preferably in the opticglass of the wavelength that uses visibility region, do not contain mentioned component in fact.Wherein " do not contain in fact " and be meant except the situation of sneaking into impurity interpolation artificially.
For high refractive indexization or the stability that improves glass can contain the Th composition, for low Tgization can contain Cd and Tl composition.But Th, Cd, each composition of Os tend to control it in recent years and use as the harmful chemical composition, therefore not only in the manufacturing process of glass, even all need take measures aspect environmental cure in the processing after manufacturing procedure and the commercialization.Therefore, under the situation of the influence aspect the attention environment, preferably do not contain the Th composition in the opticglass of the present invention in fact.
Because lead composition need be taked the measure aspect the environmental cure when manufacturing, processing and scrap glass, therefore increased cost, so should not contain lead composition in the glass of the present invention.
As 2O 3Composition is for froth breaking (deaeration) and the composition that uses well when the melten glass, but needs to make, takes when processing and scrap glass the measure of environmental cure aspect, does not therefore preferably contain As in the glass of the present invention 2O 3
Glass composition of the present invention, its composition represent with quality %, rather than directly represent with mol%, but satisfy the composition that the glass composition of the various characteristics that requires among the present invention is represented with mol%, is roughly following value in oxide compound conversion benchmark.
Bi 2O 3More than 20% and/or
SiO 20～15% and/or
B 2O 30～30% and/or
Al 2O 30～15% and/or
TiO 20～15% and/or
Nb 2O 50～15% and/or
WO 30～15% and/or
Ta 2O 50～15% and/or
ZrO 20～15% and/or
ZnO 0～15% and/or
MgO 0～15% and/or
CaO 0～15% and/or
SrO 0～15% and/or
BaO 0～20% and/or
Li 2O 0～25% and/or
Na 2O 0～25% and/or
K 2O 0～25% and/or
Rb 2O 0～25% and/or
Cs 2O 0～25% and/or
Y 2O 30～15% and/or
La 2O 30～15% and/or
Gd 2O 30～15% and/or
Yb 2O 30～15% and/or
P 2O 50～15% and/or
Sb 2O 30～3% and/or
GeO 20～20% and/or
CeO 20～10% and/or
TeO 20～10% and/or
F 0～10％。
According to the embodiment of the present invention, can obtain having partial dispersion than [θ g, F] be more than 0.65 and Abbe number [vd] is below 25, and satisfy partial dispersion than [θ g, F]＞opticglass of the optical property of the scope of the formula of-0.0108 * [vd]+0.8529, the degree of freedom of optical design significantly enlarges.Partial dispersion than the preferable range of [θ g, F] be more than 0.63, more preferably more than 0.64, most preferably be more than 0.65.Should illustrate that if be lower than this scope, then optical property has characteristics aspect optical design hardly.The preferable range of Abbe number [vd] is below 27, more preferably below 26, most preferably be below 25.
And, the partial dispersion under each Abbe number [vd] than [θ g, F] be preferably satisfied [θ g, F]＞-0.0108 * [vd]+0.8529, more preferably [θ g, F] 〉=-0.0097[vd]+0.8401, most preferably be [θ g, F] 〉=0.000427 * [vd] 2-0.024258 * [vd]+0.968320.
By opticglass of the present invention is carried out precise pressurization shaping, can use it for typical lens, prism and speculum purposes.As mentioned above, opticglass of the present invention can be used as press molding and uses with preformed articles, perhaps can directly pressurize to dissolving glass.When using, its manufacture method and precise pressurization shaping method are not had particular determination, can use known manufacture method and manufacturing process as preformed articles.Manufacture method as preformed articles, for example can adopt the manufacturing process of the glass gob that Japanese kokai publication hei 8-319124 communique put down in writing, the manufacture method and the manufacturing installation of opticglass that Japanese kokai publication hei 8-73229 communique is put down in writing, by dissolving the direct preformed articles of glass manufacturing, and also can grind cold working such as cutting grinding and make strip material.
[embodiment]
Below, the present invention will be described in more detail to utilize embodiment, but the present invention is not subjected to any qualification of following examples.
In the composition of embodiment shown in table 1～16 and comparative example, it is 400g that raw materials weighing makes glass weight, mixes.Use quartz crucible or golden crucible to be cooled to about 800～650 ℃ after 2～3 hours, be incubated after about 1 hour, be cast into mould, make glass in dissolving under 750 ℃～950 ℃.The glass performance that obtains is shown in table 1～16.
Specific refractory power [nd], Abbe number [vd], partial dispersion can be measured by specification JOGIS01-2003 based on Japanese optics nitre industry than [θ g, F].In addition, in annealing furnace, anneal under-25 ℃/hr in slow speed of cooling.
[table 1]
Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5 Embodiment 6 Embodiment 7
SiO 2 2.50 2.14 2.11 2.12 2.12 2.09
B 2O 3 9.68 8.31 8.19 8.86 8.23 8.23 8.12
La 2O 3
Gd 2O 3
TiO 2
ZrO 2
Ta 2O 5
Nb 2O 5
WO 3
ZnO 2.72 2.34 2.30 2.49 2.31 2.31 2.28
MgO
CaO 1.27 1.09 1.07 1.16 1.08 1.08 1.06
SrO 1.33 1.14 1.13 1.22 1.13 1.13 1.12
BaO 0.79 0.68 0.67 0.72 0.67 0.67 0.66
Li 2O 2.23 1.92 1.89 2.04 1.90 1.87
Na 2O
K 2O 7.70 6.61 6.98 7.04 8.44 7.83
Rb 2O 0.00 6.54
Cs 2O
CeO 2 0.00
Sb 2O 3
Bi 2O 3 68.11 73.63 72.56 73.10 72.90 72.90 71.89
GeO 2
TeO 2 3.67 2.14 3.10 3.36 3.12 3.12 3.08
Rn 2O 9.93 8.53 8.87 9.09 8.44 8.44 9.71
RO 6.11 5.25 5.17 5.59 5.19 5.19 5.12
Rn 2O/Bi 2O 3 0.15 0.12 0.12 0.12 0.12 0.12 0.14
SiO 2+B 2O 3 12.18 10.46 10.30 8.86 10.35 10.35 10.21
Add up to 100.00 100.00 100.00 100.00 100.00 100.00 100.00
θg，F 0.6765 0.6823 0.6857 0.6861 0.6849 0.6828 0.6806
vd 19.3 18.1 17.6 17.5 17.3 17.5 17.8
nd 1.8918 1.9366 1.9408 1.9369 1.9384 1.9882 1.9284
[table 2]
Embodiment 8 Embodiment 9 Embodiment 10 Embodiment 11 Embodiment 12 Embodiment 13 Embodiment 14
SiO 2 2.19 2.12 2.14 2.23 2.16 2.12
B 2O 3 8.48 8.23 9.29 8.66 8.39 9.23 8.23
La 2O 3
Gd 2O 3
TiO 2
ZrO 2
Ta 2O 5
Nb 2O 5
WO 3
ZnO 2.39 2.31 2.34 2.44 2.36 2.60 2.31
MgO
CaO 1.11 1.08 1.09 1.13 1.10 1.21 1.08
SrO 1.13 1.14 1.19 1.15 1.27 1.13
BaO 0.69 0.67 0.68 0.71 0.68 0.75 0.67
Li 2O 1.96 1.90 1.92 2.00 1.93 2.13 1.90
Na 2O
K 2O 4.82 6.54 4.71 6.89 4.76 5.95 6.54
Rb 2O
Cs 2O
CeO 2 0.00
Sb 2O 3
Bi 2O 3 75.15 72.90 73.55 71.47 74.29 73.36 72.90
GeO 2
TeO 2 3.22 3.12 3.15 3.28 3.18 3.50 3.12
Rn 2O 6.77 8.44 6.63 8.88 6.70 8.08 8.44
RO 4.19 5.19 5.24 5.47 5.29 5.83 5.19
Rn 2O/Bi 2O 3 0.09 0.12 0.09 0.12 0.09 0.11 0.12
SiO 2+B 2O 3 10.67 10.35 11.43 10.90 10.55 9.23 10.35
Add up to 100.00 100.00 100.00 100.00 100.00 100.00 100.00
θg，F 0.6816 0.6804 0.6786 0.6737 0.6764 0.6752 0.6724
vd 17.7 17.7 18.0 18.4 17.8 17.9 18.3
nd 1.9671 1.9432 1.9584 1.9233 1.9670 1.9446 1.9348
[table 3]
Embodiment 15 Embodiment 16 Embodiment 17 Embodiment 18 Embodiment 19 Embodiment 20 Embodiment 21
SiO 2 2.07 1.13 2.18 2.07 2.12 2.43
B 2O 3 10.07 8.04 8.31 8.47 8.04 8.23 7.61
La 2O 3
Gd 2O 3
TiO 2
ZrO 2
Ta 2O 5
Nb 2O 5
WO 3
ZnO 2.25 2.26 2.34 2.38 2.26 2.14
MgO
CaO 2.89 1.05 1.09 1.11 1.05 3.39
SrO 1.10 1.11 1.14 1.16 1.11 1.13 1.05
BaO 0.65 0.65 0.68 0.69 0.65 0.67 0.62
Li 2O 1.85 1.92 1.95 1.85 1.90 1.21
Na 2O
K 2O 9.09 8.68 6.61 3.85 8.68 6.54 0.96
Rb 2O
Cs 2O
CeO 2
Sb 2O 3
Bi 2O 3 70.91 71.23 73.63 75.00 71.23 72.90 81.10
GeO 2
TeO 2 3.03 3.05 3.15 3.21 3.05 3.12 2.88
Rn 2O 9.09 10.53 8.53 5.80 10.53 8.44 2.17
RO 6.90 5.07 5.25 5.34 5.07 5.19 3.81
Rn 2O/Bi 2O 3 0.13 0.15 0.12 0.08 0.15 0.12 0.03
SiO 2+B 2O 3 10.07 10.11 9.45 10.65 10.11 10.35 10.04
Add up to 100.00 100.00 100.00 100.00 100.00 100.00 100.00
θg，F 0.6718 0.6680 0.6781 0.6684 0.6680 0.6671 0.6618
vd 18.5 18.7 17.7 18.0 18.7 18.7 17.8
nd 1.9076 1.9048 1.9449 1.9781 1.9048 1.9325 2.05611
[table 4]
Embodiment 22 Embodiment 23 Embodiment 24 Embodiment 25 Embodiment 26 Embodiment 27 Embodiment 28
SiO 2 2.43 2.43 2.43 2.46 2.43 2.41
B 2O 3 7.61 7.61 7.61 7.68 7.61 7.57 7.76
La 2O 3
Gd 2O 3
TiO 2
ZrO 2
Ta 2O 5
Nb 2O 5
WO 3
ZnO 2.14 2.14 2.14 2.16 2.14 2.13 2.18
MgO
CaO 0.99 1.06 0.99 0.99 1.01
SrO 1.05 1.05 1.05 0.00 1.05 1.04 1.07
BaO 0.62 0.62 0.62 0.63 0.62 0.62 0.63
Li 2O 1.21 2.20 1.21 1.22 1.21 0.95 0.97
Na 2O 0.99
K 2O 0.80 0.82
Rb 2O
Cs 2O
CeO 2
Sb 2O 3
Bi 2O 3 81.07 81.07 81.07 81.88 81.07 80.63 82.62
GeO 2
TeO 2 2.88 2.88 2.88 2.91 2.88 2.87 2.94
Rn 2O 2.20 2.20 1.21 1.22 1.21 1.75 1.79
RO 3.81 3.81 4.80 3.85 4.80 4.78 4.89
Rn 2O/Bi 2O 3 0.03 0.03 0.01 0.01 0.01 0.02 0.02
SiO 2+B 2O 3 10.04 10.04 10.04 10.14 10.04 9.98 7.76
Add up to 100.00 100.00 100.00 100.00 100.00 100.00 100.00
θg，F 0.6611 0.6562 0.6595 0.6602 0.6733 0.6624 0.6658
vd 17.9 18.4 18.0 17.8 16.7 17.8 17.5
nd 2.05541 2.04446 2.0688 2.0773 2.1134 2.0622 2.0727
[table 5]
Embodiment 29 Embodiment 30 Embodiment 31 Embodiment 32 Embodiment 33 Embodiment 34 Embodiment 35
SiO 2 2.42 2.44
B 2O 3 7.56 7.65 7.76 7.76 7.76 7.76 7.76
La 2O 3 0.99
Gd 2O 3
TiO 2
ZrO 2
Ta 2O 5
Nb 2O 5
WO 3
ZnO 2.13 2.15 2.18 2.18 2.18 2.18 2.18
MgO
CaO 1.01 1.01 1.01 1.01 1.01
SrO 1.04 1.05 1.07 1.07 1.07 1.07 1.07
BaO 0.62 0.62 0.63 0.63 0.63 0.63 0.63
Li 2O 0.95 0.96 0.97 0.97 0.97 0.97 0.97
Na 2O
K 2O 0.80 0.80 0.82 0.82 0.82 0.82 0.82
Rb 2O
Cs 2O
CeO 2
Sb 2O 3
Bi 2O 3 80.63 81.43 82.62 82.62 82.62 82.62 82.62
GeO 2
TeO 2 2.87 2.90 2.94 2.94 2.94 2.94 2.94
Rn 2O 1.75 1.76 1.79 1.79 1.79 1.79 1.79
RO 3.79 3.82 4.89 4.89 4.89 4.89 4.89
Rn 2O/Bi 2O 3 0.02 0.02 0.02 0.02 0.02 0.02 0.02
SiO 2+B 2O 3 9.98 10.08 7.76 7.76 7.76 7.76 7.76
Add up to 100.00 100.00 100.00 100.00 100.00 100.00 100.00
θg，F 0.6615 0.6625 0.6726 0.6671 0.6652 0.6656 0.6770
vd 17.9 17.7 16.7 17.3 17.3 17.5 16.4
nd 2.0647 2.0694 2.0947 2.0775 2.0968 2.0722 2.1077
[table 6]
Embodiment 36 Embodiment 37 Embodiment 38 Embodiment 39 Embodiment 40 Embodiment 41 Embodiment 42
SiO 2 0.99 1.96 2.91 1.98
B 2O 3 7.76 7.76 7.83 7.68 7.60 7.53 7.66
La 2O 3
Gd 2O 3
TiO 2
ZrO 2
Ta 2O 5
Nb 2O 5
WO 3
ZnO 2.18 2.18 2.20 2.16 2.14 2.12 2.15
MgO
CaO 1.01 1.01 1.02 1.00 0.99 0.99 1.00
SrO 1.07 1.07 1.08 1.06 1.05 1.04 1.05
BaO 0.63 0.63 0.64 0.62 0.62 0.61 0.62
Li 2O 0.97 0.97 0.98 0.96 0.95 1.74
Na 2O 1.01
K 2O 0.82 0.82 0.82 0.81 0.80
Rb 2O
Cs 2O
CeO 2
Sb 2O 3
Bi 2O 3 82.62 82.62 83.46 81.80 81.00 80.21 81.62
GeO 2
TeO 2 2.94 2.94 1.96 2.91 2.88 2.85 2.90
Rn 2O 1.79 1.79 1.81 1.77 1.75 1.74 1.01
RO 4.89 4.89 4.94 4.85 4.80 4.75 4.83
Rn 2O/Bi 2O 3 0.02 0.02 0.02 0.02 0.02 0.02 0.01
SiO 2+B 2O 3 7.76 7.76 7.83 8.67 9.57 10.44 9.64
Add up to 100.00 100.00 100.00 100.00 100.00 100.00 100.00
θg，F 0.6850 0.6843 0.6855 0.6809 0.6748 0.6686 0.6663
vd 15.8 15.8 15.7 16.1 16.6 17.2 17.4
nd 2.1294 2.1251 2.1285 2.1172 2.1027 2.0895 2.0856
[table 7]
Embodiment 43 Embodiment 44 Embodiment 45 Embodiment 46 Embodiment 47 Embodiment 48 Embodiment 49
SiO 2 1.98 1.98 1.96 3.52 3.52
B 2O 3 7.66 7.66 11.38 11.38 7.60 9.33 9.33
La 2O 3
Gd 2O 3
TiO 2 0.80 0.80
ZrO 2
Ta 2O 5
Nb 2O 5
WO 3
ZnO 2.15 2.15 3.20 3.20 2.14
MgO 1.01
CaO 1.00 1.00 1.49 1.49 0.99
SrO 1.05 1.05 1.05
BaO 0.62 0.62 0.93 0.93 0.62 18.71 18.71
Li 2O 1.75 0.74
Na 2O 0.74
K 2O 1.01
Rb 2O
Cs 2O
C eO 2
Sb 2O 3 0.07 0.07
Bi 2O 3 81.62 81.62 80.00 79.99 81.00 66.83 66.83
GeO 2
TeO 2 2.90 2.90 3.00 3.00 2.88
Rn 2O 1.01 0.00 0.00 0.00 1.75 0.74 0.74
RO 4.83 5.84 5.62 5.62 4.80 18.71 18.71
Rn 2O/Bi 2O 3 0.01 0.00 0.00 0.00 0.02 0.01 0.01
SiO 2+B 2O 3 9.64 9.64 11.38 11.38 9.57 12.85 12.85
Add up to 100.00 100.00 100.00 99.99 100.00 100.00 100.00
θg，F 0.6644 0.6660 0.6605 0.6553 0.6555 0.6499 0.6473
vd 17.6 17.4 18.1 18.4 18.5 20.5 20.7
nd 2.0801 2.1062 2.0847 2.0755 2.0457 1.9782 1.9701
[table 8]
Embodiment 50 Embodiment 51 Embodiment 52 Embodiment 53 Embodiment 54 Embodiment 55 Embodiment 56
SiO 2 1.98 2.26 1.87 1.78
B 2O 3 7.66 9.26 7.76 7.39 7.24 7.05 6.91
La 2O 3
Gd 2O 3
TiO 2
ZrO 2
Ta 2O 5
Nb 2O 5
WO 3
ZnO 2.15 2.46 2.18 2.08 2.04 1.98 1.94
MgO
CaO 1.00 1.15 1.01 0.97 0.95 0.92 0.90
SrO 1.05 1.21 1.07 1.02 1.00 0.97 0.95
BaO 0.62 0.71 0.63 0.60 0.59 0.57 0.56
Li 2O 1.01 2.02 1.79 1.70 1.67 1.63 1.59
Na 2O 4.76 4.76 9.09 9.09
K 2O
Rb 2O
Cs 2O
CeO 2
Sb 2O 3
Bi 2O 3 81.62 77.61 82.62 78.69 77.14 75.11 73.64
GeO 2
TeO 2 2.90 3.32 2.94 2.80 2.74 2.67 2.62
Rn 2O 1.01 2.02 1.79 6.47 6.43 10.72 10.69
RO 4.84 5.53 4.89 4.66 4.57 4.45 4.36
Rn 2O/Bi 2O 3 0.01 0.03 0.02 0.08 0.08 0.14 0.15
SiO 2+B 2O 3 9.64 11.52 7.76 7.39 9.11 7.05 8.70
Add up to 100.00 100.00 100.00 100.00 100.00 100.00 100.00
θg，F 0.6635 0.6594 0.6778 0.6913 0.6856 0.6614 0.6608
vd 17.6 18.3 16.3 15.8 16.5 18.4 18.6
nd 2.0863 2.0439 2.1180 2.0492 2.0258 1.9268 1.9231
[table 9]
Embodiment 57 Embodiment 58 Embodiment 59 Embodiment 60 Embodiment 61 Embodiment 62 Embodiment 63
SiO 2 1.78 2.00 2.00 2.00
B 2O 3 6.91 9.74 5.70 7.74 5.70 7.74 5.70
La 2O 3
Gd 2O 3
TiO 2
ZrO 2
Ta 2O 5
Nb 2O 5
WO 3
ZnO 1.94 2.18 2.18 2.18 2.18 1.16
MgO
CaO 0.90 2.71 1.01 1.01 2.71 1.01 3.73
SrO 0.95 1.07 1.07 1.07
BaO 0.56 0.63 0.63 0.63
Li 2O 1.59
Na 2O
K 2O 9.09 2.04 4.03 2.18 4.03
Rb 2O
Cs 2O
CeO 2
Sb 2O 3
Bi 2O 3 73.64 82.45 82.45 82.45 82.45 82.45 82.45
GeO 2
TeO 2 2.62 2.93 2.93 2.93 2.93 2.93 2.93
Rn 2O 10.69 0.00 2.04 0.00 4.03 2.18 4.03
RO 4.36 4.88 4.88 4.88 4.88 2.71 4.88
Rn 2O/Bi 2O 3 0.15 0.00 0.02 0.00 0.05 0.03 0.05
SiO 2+B 2O 3 8.70 9.74 7.70 9.74 5.70 9.74 5.70
Add up to 100.00 100.00 100.00 100.00 100.00 100.00 100.00
θg，F 0.6776 0.6641 0.6760 0.6650 0.6840 0.6690 0.6829
vd 17.4 17.6 16.5 17.2 16.1 17.3 16.3
nd 1.9409 2.0993 2.0916 2.1167 2.0606 2.0594 2.0562
[table 10]
Embodiment 64 Embodiment 65 Embodiment 66 Embodiment 67 Embodiment 68 Embodiment 69 Embodiment 70
SiO 2 2.39 2.06 1.92 1.87
B 2O 3 5.70 5.70 9.80 6.00 8.00 7.45 7.24
La 2O 3
Gd 2O 3
TiO 2
ZrO 2
Ta 2O 5
Nb 2O 5
WO 3
ZnO 1.16 2.61 2.29 2.25 2.10 2.04
MgO
CaO 2.71 2.71 1.21 2.85 1.05 0.97 0.95
SrO 1.28 1.10 1.03 1.00
BaO 0.75 0.65 0.61 0.59
Li 2O 1.85 1.72 1.67
Na 2O 7.40 1.96 4.76
K 2O 5.05 6.21 4.24 9.09
Rb 2O
Cs 2O
CeO 2
Sb 2O 3
Bi 2O 3 82.45 82.45 71.04 81.52 70.91 79.41 77.14
GeO 2
TeO 2 2.93 2.93 3.51 3.09 3.03 2.82 2.74
Rn 2O 5.05 6.21 7.40 4.24 10.94 3.68 6.43
RO 3.87 2.71 5.85 5.14 5.05 4.70 4.57
Rn 2O/Bi 2O 3 0.06 0.08 0.10 0.05 0.15 0.05 0.08
SiO 2+B 2O 3 5.70 5.70 12.19 6.00 10.07 9.38 9.11
Add up to 100.00 100.00 100.00 100.00 100.00 100.00 100.00
θg，F 0.6800 0.6757 0.6484 0.6866 0.6622 0.6769 0.6784
vd 16.6 16.8 20.4 16.1 19.1 16.7 16.9
nd 2.0321 2.0097 1.8999 2.0539 1.8947 2.0610 2.0065
[table 11]
Embodiment 71 Embodiment 72 Embodiment 73 Embodiment 74 Embodiment 75 Embodiment 76 Embodiment 77
SiO 2 1.83 1.92 1.83 1.78 1.78 2.18 2.27
B 2O 3 7.11 7.45 7.11 6.91 6.91 8.47 8.80
La 2O 3
Gd 2O 3
TiO 2
Zr 2
Ta 2O 5
Nb 2O 5
WO 3
ZnO 2.00 2.10 2.00 1.94 1.94 2.38 0.00
MgO
CaO 0.93 0.97 0.93 0.90 0.90 1.11 1.15
SrO 0.98 1.03 0.98 0.95 0.95 1.16 1.21
BaO 0.58 0.61 0.58 0.56 0.56 0.69 0.72
Li 2O 1.64 1.72 1.64 1.59 1.59 1.95 2.03
Na 2O 6.54
K 2O 1.96 6.54 9.09 9.09 3.85 2.48
Rb 2O
Cs 2O
CeO 2
Sb 2O 3
Bi 2O 3 75.70 79.41 75.70 73.64 73.64 75.00 78.00
GeO 2
TeO 2 2.69 2.82 2.69 2.62 2.62 3.21 3.34
Rn 2O 8.18 3.68 8.18 10.69 10.69 5.80 4.51
RO 4.48 4.70 4.48 4.36 4.36 5.34 3.08
Rn 2O/Bi 2O 3 0.11 0.05 0.11 0.15 0.15 0.08 0.06
SiO 2+B 2O 3 8.94 9.38 8.94 8.70 8.70 10.65 11.08
Add up to 100.00 100.00 100.00 100.00 100.00 100.00 100.00
θg，F 0.6681 0.6811 0.6892 0.6784 0.6794 0.6684 0.6662
vd 17.6 16.5 16.5 17.4 17.3 18.0 17.9
nd 1.9674 2.0627 1.9803 1.9403 1.9418 1.9781 2.0075
[table 12]
Embodiment 78 Embodiment 79 Embodiment 80 Embodiment 81 Embodiment 82 Embodiment 83 Embodiment 84
SiO 2 1.87 1.87 2.27 2.23 2.23 2.18 2.12
B 2O 3 7.24 7.24 8.80 8.63 8.63 8.47 8.23
La 2O 3
Gd 2O 3
TiO 2
ZrO 2
Ta 2O 5
Nb 2O 5
WO 3
ZnO 2.04 2.04 2.48 2.43 2.43 2.38 2.31
MgO
CaO 0.95 0.95 1.15 1.13 1.13 1.11 1.08
SrO 1.00 1.00 1.21 1.19 1.19 1.16 1.13
BaO 0.59 0.59 0.72 0.70 0.70 0.69 0.67
Li 2O 1.67 1.67 2.03 1.99 1.99 1.95 1.90
Na 2O 0.00 1.96 3.85 6.54
K 2O 1.96
Rb 2O 4.76
Cs 2O 4.76
CeO 2
Sb 2O 3
Bi 2O 3 77.14 77.14 78.00 76.47 76.47 75.00 72.90
GeO 2
TeO 2 2.74 2.74 3.34 3.27 3.27 3.21 3.12
Rn 2O 6.43 6.43 2.03 3.95 3.95 5.80 8.44
RO 4.57 4.57 5.56 5.45 5.45 5.34 5.19
Rn 2O/B i2O 3 0.08 0.08 0.03 0.05 0.05 0.08 0.12
SiO 2+B 2O 3 9.11 9.11 11.08 10.86 10.86 10.65 10.35
Add up to 100.00 100.00 100.00 100.00 100.00 100.00 100.00
θg，F 0.6762 0.6819 0.6592 0.6654 0.6641 0.6620 0.6613
Big vd 16.8 16.5 18.2 18.1 17.8 18.0 18.8
nd 2.0573 2.0455 2.0456 2.0115 2.0209 1.9848 1.9351
[table 13]
Embodiment 85 Embodiment 86 Embodiment 87 Embodiment 88 Embodiment 89 Embodiment 90 Embodiment 91
SiO 2 2.06 1.85 2.27 2.12 2.10
B 2O 3 8.00 8.96 9.46 7.17 8.80 8.23 8.15
La 2O 3
Gd 2O 3
TiO 2
ZrO 2
Ta 2O 5
Nb 2O 5
WO 3 0.00
ZnO 2.25 2.02 2.48 2.31 2.29
MgO
CaO 1.05 2.49 2.63 0.94 1.15 1.08 1.07
SrO 1.10 0.99 1.21 1.13 1.12
BaO 0.65 0.58 0.72 0.67 0.66
Li 2O 1.85 1.65 2.03 1.90 1.88
Na 2O 9.09 2.83
K 2O 10.00 5.00 2.83 7.41
Rb 2O
Cs 2O 6.54
CeO 2
Sb 2O 3
Bi 2O 3 70.91 75.85 80.07 76.42 78.00 72.90 72.22
GeO 2
TeO 2 3.03 2.70 2.85 2.72 3.34 3.12 3.09
Rn 2O 10.94 10.00 5.00 7.31 2.03 8.44 9.29
RO 5.05 2.49 2.63 4.53 5.56 5.19 5.15
Rn 2O/Bi 2O 3 0.15 0.13 0.06 0.10 0.03 0.12 0.13
SiO 2+B 2O 3 10.07 8.96 9.46 9.02 11.08 10.35 10.26
Add up to 100.00 100.00 100.00 100.00 100.00 100.00 100.00
θg，F 0.6512 0.6667 0.6750 0.6802 0.6614 0.6705 0.6706
vd 19.6 18.4 17.5 16.6 18.1 17.9 18.3
nd 1.8938 1.9142 1.9919 1.9990 2.0501 2.0029 1.9249
[table 14]
Embodiment 92 Embodiment 93 Embodiment 94 Embodiment 95 Embodiment 96 Embodiment 97 Embodiment 98
SiO 2 2.20 2.08 2.16 2.06 5.14 3.52
B 2O 3 8.55 8.92 8.08 8.39 8.00 13.64 9.33
La 2O 3 2.60
Gd 2O 3 2.69
TiO 2 4.07 0.80
ZrO 2 0.72
Ta 2O 5 1.68
Nb 2O 5 2.64
WO 3 2.91 1.69
ZnO 2.40 2.27 2.36 2.25
MgO 4.69
CaO 1.12 1.06 3.10 1.05
SrO 1.18 1.11 1.15 1.10
BaO 0.70 0.66 0.68 0.65 3.94 18.71
Li 2O 1.97 1.86 1.93 1.85 1.09 0.74
Na 2O 6.54 3.61
K 2O 8.26 4.76 2.06
Rb 2O
Cs 2O 9.09
CeO 2
Sb 2O 3 0.42 0.11 0.07
Bi 2O 3 75.73 71.96 71.56 72.29 70.91 59.98 64.19
GeO 2 4.46
TeO 2 3.24 3.06 3.18 3.03
Rn 2O 1.97 6.54 10.12 6.70 10.94 6.75 0.74
RO 5.40 0.00 5.10 7.29 5.05 8.63 18.71
Rn 2O/Bi 2O 3 0.03 0.09 0.14 0.09 0.15 0.11 0.01
SiO 2+B 2O 3 10.75 8.92 10.16 10.55 10.07 18.78 12.85
Add up to 100.00 100.00 100.00 100.00 100.00 100.00 100.00
θg，F 0.6612 0.6501 0.6689 0.6666 0.6748 0.6480 0.6494
vd 18.0 19.7 18.4 18.5 17.8 21.9 20.3
nd 2.0535 1.9493 1.9138 1.9545 1.9858 1.8653 1.9893
[table 15]
Embodiment 99 Embodiment 100 Embodiment 101 Embodiment 102 Embodiment 103 Embodiment 104
SiO 2 3.30 2.74 2.27 2.09 1.92
B 2O 3 12.81 9.52 15.20 8.81 10.25 11.25
La 2O 3
Gd 2O 3
TiO 2
ZrO 2
Ta 2O 5
Nb 2O 5
WO 3
ZnO 3.60 1.86 2.48 2.28 2.09
MgO
CaO 1.68 1.15 1.06 0.97
SrO 1.76 1.42 1.21 1.11 1.02
BaO 1.04 4.89 1.00 0.72 0.66 0.60
Li 2O 2.95 1.36 2.03 1.87 1.72
Na 2O
K 2O
Rb 2O
Cs 2O
CeO 2
Sb 2O 3
Bi 2O 3 68.00 74.36 81.00 78.00 77.61 77.61
GeO 2
TeO 2 4.85 3.85 2.80 3.34 3.07 2.82
Rn 2O 2.95 1.36 0.00 2.03 1.87 1.72
RO 8.08 8.17 1.00 5.56 5.11 4.69
Rn 2O/Bi 2O 3 0.04 0.02 0.00 0.03 0.02 0.02
SiO 2+B 2O 3 16.11 12.26 15.20 11.08 12.34 13.17
Add up to 100.00 100.00 100.00 100.00 100.00 100.00
θg，F 0.6421 0.6563 0.6436 0.6583 0.6553 0.6559
vd 21.2 18.8 19.2 18.4 18.8 18.5
nd 1.94724 2.0309 2.02567 2.0421 2.0331 2.0373
[table 16]
Comparative example 1 Comparative example 2 Comparative example 3
SiO 2 1.96 7.05 4.52
B 2O 3 4.88 19.05 14.21
La 2O 3
Gd 2O 3
TiO 2 1.02
ZrO 2
Ta 2O 5
Nb 2O 5 3.40
WO 3
ZnO 1.37 6.37
MgO
CaO 0.64 4.39
SrO 0.67
BaO 0.40 6.00 24.05
Li 2O 2.34
Na 2O
K 2O
Rb 2O
Cs 2O
CeO 2
Sb 2O 3 0.09 0.09
Bi 2O 3 88.24 54.71 52.71
GeO 2
TeO 2 1.85
Rn 2O
RO
Rn 2O/Bi 2O 3
SiO 2+B 2O 3
Add up to 100.00 100.00 100.00
θg，F 0.6951 0.6069 0.6246
vd 14.4 29.7 24.6
nd 2.2463 1.7990 1.8949
The glass of embodiments of the invention is to have that partial dispersion than [θ g, F] is, Abbe number [vd] is the opticglass of the characteristic optical constant below 27 more than 0.63.Also there is the higher glass of specific refractory power [nd] in the glass of comparative example, but partial dispersion does not exceed the scope of common glass of high refractive index than the value of the Abbe number [vd] in [θ g, F].That is, the discontented foot portions chromatic dispersion of the opticglass of comparative example does not have anomalous dispersion of the presently claimed invention than [θ g, F]＞-0.0108 * [vd]+0.8529, does not have advantage in optical design yet.

Claims (8)

1. opticglass, it contains SiO 2Composition and/or B 2O 3Composition, and, contain 40～90% Bi in the quality % of oxide compound benchmark 2O 3Composition, partial dispersion than [θ g, F] is more than 0.63, Abbe number [vd] is below 27,
And this opticglass satisfies partial dispersion than [θ g, F]＞-0.0108 * [vd]+0.8529.
2. opticglass as claimed in claim 1 wherein, in the quality % of oxide compound benchmark, contains 64～90% Bi 2O 3Composition.
3. opticglass as claimed in claim 1 or 2, wherein, in the quality % of oxide compound benchmark, Rn 2The content of O composition is with respect to Bi 2O 3The ratio of the content of composition is more than 0.01, and wherein Rn is selected among Li, Na, K, Rb, the Cs more than one.
4. as each described opticglass in the claim 1 to 3, wherein,, contain following each composition in the quality % of oxide compound benchmark:
SiO 20%～20%; And/or
B 2O 30%～30%; And/or
Rn 2O surpasses 0% and be below 25%; And/or
RO 0%～35%; And/or
Bi 2O 3 64％～90％，
Wherein, SiO 2+ B 2O 3Surpass 0%;
Rn is selected among Li, Na, K, Rb, the Cs more than one, and R is selected among Mg, Ca, Sr, Ba, the Zn more than one.
5. as each described opticglass in the claim 1 to 4, wherein,, contain and surpass 0% K in the quality % of oxide compound benchmark 2The O composition.
6. an attrition process is with preformed articles and/or preformed articles for precise pressurization shaping, and it is made by each described opticglass in the claim 1 to 5.
7. optical element, it is that the described attrition process of claim 6 is ground and got with preformed articles.
8. optical element, it is that the described preformed articles for precise pressurization shaping of claim 6 is carried out precise pressurization shaping and gets.
CN2009801165865A 2009-04-17 2009-04-17 Optical glass Pending CN102015562A (en)

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