CN102557437A - Optical glass, optical element and perform blank - Google Patents
Optical glass, optical element and perform blank Download PDFInfo
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- CN102557437A CN102557437A CN2010106093317A CN201010609331A CN102557437A CN 102557437 A CN102557437 A CN 102557437A CN 2010106093317 A CN2010106093317 A CN 2010106093317A CN 201010609331 A CN201010609331 A CN 201010609331A CN 102557437 A CN102557437 A CN 102557437A
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- opticglass
- glass
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- containing ratio
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- 230000003287 optical effect Effects 0.000 title claims abstract description 21
- 239000005304 optical glass Substances 0.000 title abstract 7
- 150000002500 ions Chemical class 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims description 20
- 239000000470 constituent Substances 0.000 claims description 17
- 150000001768 cations Chemical class 0.000 claims description 16
- 125000000129 anionic group Chemical group 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 6
- 239000011521 glass Substances 0.000 abstract description 90
- 239000000203 mixture Substances 0.000 abstract description 42
- 230000002547 anomalous effect Effects 0.000 abstract description 27
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000004075 alteration Effects 0.000 abstract description 3
- 238000000227 grinding Methods 0.000 abstract description 3
- 239000006185 dispersion Substances 0.000 description 52
- 239000002994 raw material Substances 0.000 description 29
- 238000004031 devitrification Methods 0.000 description 22
- 241000219739 Lens Species 0.000 description 11
- 210000000695 crystalline len Anatomy 0.000 description 11
- 229910052783 alkali metal Inorganic materials 0.000 description 8
- 150000001340 alkali metals Chemical class 0.000 description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 5
- 230000009477 glass transition Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229910016569 AlF 3 Inorganic materials 0.000 description 2
- 229910016036 BaF 2 Inorganic materials 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- -1 fluorochemical Chemical class 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910004261 CaF 2 Inorganic materials 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 229910005690 GdF 3 Inorganic materials 0.000 description 1
- 229910005793 GeO 2 Inorganic materials 0.000 description 1
- 229910017768 LaF 3 Inorganic materials 0.000 description 1
- 229910013553 LiNO Inorganic materials 0.000 description 1
- 229910001260 Pt alloy Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910052776 Thorium Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 229910001420 alkaline earth metal ion Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000009429 distress Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005816 glass manufacturing process Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 229910052716 thallium Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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Abstract
The invention aims at providing an optical glass, an optical element and a perform blank. The optical glass is high in anomalous dispersivity, so that chromatic aberration of a glass lens can be compensated with high-precision, and accordingly the optical glass has high refractive index and low dispersivity (high abbe number), and optical glass has equal or better performance than the existing optical glass on the aspects of low abrasiveness and easy grinding and production. The optical glass has the composition of P5+, AL3+, Ca2+, and Ln3+ (the Ln3+selects one of a group composed of Y3+, La3+, Gd3+, Yb3+ and the Lu3+) serving as positive ion and selects from one of a group composed of Mg2+, Sr2+ and Ba2+, positive ion % is used for indicating, total containing rate of the Ln3+ is higher than 1.1% and lower than 10.0%, negative ion composition contains F-, refractive index (nd) is larger than or equal to 1.55, and the abbe number (vd) is larger than or equal to 55.
Description
Technical field
The present invention relates to opticglass, optical element and preform.
Background technology
The lens combination of opticinstrument normally will have the combination of a plurality of glass lenss and the design of different optical character.In recent years, the desired characteristic of lens system of opticinstrument is variation, in order further to expand its degree of freedom in design, is developing the opticglass that possesses the optical characteristics of in the past being attracted attention.Wherein, (Δ θ g's anomalous dispersion property F) is attracted attention as the opticglass that the color correct to chromatic aberation has unusual effect for the opticglass of characteristic.
For example proposed a kind of opticglass in the patent documentation 1～3, it also has higher anomalous dispersion property except the character of necessary high refractive index and low dispersivity and excellent in workability in the past; As this opticglass, for example cation constituent contains P
5+, Al
3+, alkaline earth metal ion etc., anionic component contains F
-And O
2-
The prior art document
Patent documentation
Patent documentation 1: TOHKEMY 2007-55883 communique
Patent documentation 2: TOHKEMY 2008-137877 communique
Patent documentation 3: No. 2008/111439 pph of International Publication
Summary of the invention
The problem that invention will solve
Yet, the opticglass in the past of that kind that patent documentation 1～3 is put down in writing, its anomalous dispersion property degree is insufficient, and the expectation exploitation possesses the opticglass of higher anomalous dispersion property.
The objective of the invention is to solve such problem.
Promptly the objective of the invention is to; A kind of opticglass, optical element and preform are provided; The anomalous dispersion property of said opticglass is higher; Thereby the chromatic aberation of compensation glass lens accurately, and then possess high refractive index, low dispersivity (high Abbe number) is low in stage of wear, be prone to carry out have aspect the attrition process with opticglass in the past the performance more than equal.
The scheme that is used to deal with problems
The inventor etc. further investigate for solving above-mentioned problem, thereby have accomplished the present invention.
The present invention is following (1)～(11).
(1) a kind of opticglass wherein, contains P as cation constituent
5+, Al
3+, Ca
2+, Ln
3+(Ln
3+Be to be selected from by Y
3+, La
3+, Gd
3+, Yb
3+And Lu
3+At least aly in the group of forming) and be selected from by Mg
2+, Sr
2+And Ba
2+At least a in the group of forming;
% representes with positively charged ion, Ln
3+Total containing ratio for surpassing below 1.1% and 10.0%,
Contain F as anionic component
-,
The specific refractory power of said opticglass (nd) >=1.55, Abbe number (ν d) >=55.
(2) according to above-mentioned (1) described opticglass, wherein, % representes with positively charged ion, contains as cation constituent:
P
5+：25～50％，
Al
3+：5～15％，
Ca
2+：1～8％，
R
2+: 30～70% (R
2+Be meant Ca
2++ Mg
2++ Sr
2++ Ba
2+),
Gd
3+: surpass below 0% and 10.0%,
% representes with negatively charged ion, contains as anionic component:
F
-：15～40％。
(3) according to above-mentioned (1) or (2) described opticglass, wherein, Y
3+, La
3+, Gd
3+, Yb
3+And Lu
3+The containing ratio of each cation constituent satisfy Gd
3+/ (Y
3++ La
3++ Gd
3++ Yb
3++ Lu
3+The relation of)＞0.74.
(4) according to each described opticglass in above-mentioned (1)～(3), wherein, % representes with positively charged ion, R
2+Total containing ratio be 33～70%.
(5) according to each described opticglass in above-mentioned (1)～(4), wherein, do not contain Sb.
(6) according to each described opticglass in above-mentioned (1)～(5), wherein, do not contain Y.
(7) according to each described opticglass in above-mentioned (1)～(6), its stage of wear is below 510.
(8) a kind of optical element, it is formed by each described opticglass in above-mentioned (1)～(7).
(9) preform that a kind of attrition process is used and/or precise press molding is used, it is formed by each described opticglass in above-mentioned (1)～(7).
(10) a kind of optical element, it forms for above-mentioned (9) described preform is ground.
(11) a kind of optical element, it is for forming the accurate compacting of above-mentioned (9) described preform.
The effect of invention
According to the present invention; A kind of opticglass, optical element and preform can be provided; The anomalous dispersion property of said opticglass is higher, thus the chromatic aberation of compensation glass lens accurately, and then possess high refractive index, low dispersivity (high Abbe number); And, low in stage of wear, be prone to carry out have aspect the attrition process with opticglass in the past the performance more than equal.
Description of drawings
Fig. 1 be with partial dispersion than (θ g, F) for the longitudinal axis, be the figure of the reference line represented in the rectangular coordinates of transverse axis with Abbe number (ν d).
Embodiment
The present invention will be described.
Opticglass of the present invention contains P as cation constituent
5+, Al
3+, Ca
2+, Ln
3+(Ln
3+Be to be selected from by Y
3+, La
3+, Gd
3+, Yb
3+And Lu
3+At least aly in the group of forming) and Mg
2+, Sr
2+And Ba
2+At least a in the group of forming, % representes with positively charged ion, Ln
3+Total containing ratio for surpassing below 1.1% and 10.0%; Contain F as anionic component
-The specific refractory power of said opticglass (nd)>=1.55, Abbe number (ν d)>=55.
Below also this opticglass is called by " opticglass of the present invention ".
< glass ingredient >
Each composition to constituting opticglass of the present invention describes.
In this specification sheets, short of special declaration, the containing ratio of each composition are all represented with positively charged ion % or negatively charged ion % based on mol ratio.Here, " positively charged ion % " and " negatively charged ion % " is meant that glass constituent with opticglass of the present invention is separated into cation constituent and anionic component, and the composition of each composition of representing as 100 moles of % to contain in the glass with overall proportion separately.
In addition, for simplicity, the valence valence of each composition uses typical value, does not distinguish with other valence valence.The valence valence of each composition that exists in the opticglass possibly not be a typical value.For example P is that 5 state is present in the glass with valence valence usually, thereby in this manual with " P
5+" expression, but also possibly exist with the state of other valence valences.Like this, strictly speaking, each composition also exists with the state of other valence valences, but in this manual, each composition is regarded as being present in the opticglass with the valence valence of typical value.
About cation constituent
<P
5+>
Opticglass of the present invention contains P
5+P
5+Be that glass forms composition, have the devitrification that suppresses glass, the character that improves specific refractory power, the reduction of inhibition Abbe number.
Because such character strengthens, so P
5+Containing ratio be preferably 25.0～50.0%.In addition, more preferably more than 26.0%, further be preferably more than 28.0%.In addition, more preferably below 48.0%, further preferred below 47.0%.
Can be through using for example Al (PO
3)
3, Ca (PO
3)
2, Ba (PO
3)
2, Zn (PO
3)
2, BPO
4, H
3PO
4Deng making P as raw material
5+Be included in the glass.
<Al
3+>
Opticglass of the present invention contains Al
3+Al
3+Has the character that the anti-increased devitrification resistance, specific refractory power and the Abbe number that make glass improve, reduce stage of wear and then improve processibility.
Because such character strengthens, so Al
3+Containing ratio be preferably 5.0～15.0%.In addition, more preferably more than 6.0%, further be preferably more than 7.0%.In addition, more preferably below 13.0%, further be preferably below 12.0%.
Can be through using for example Al (PO
3)
3, AlF
3, Al
2O
3Deng making Al as raw material
3+Be included in the glass.
< earth alkali metal >
Earth alkali metal means Ca among the present invention
2+, Mg
2+, Sr
2+And Ba
2+, sometimes with R
2+Expression.In addition, R
2+Total containing ratio be meant the total containing ratio (Ca of these 4 kinds of ionic
2++ Mg
2++ Sr
2++ Ba
2+).
Opticglass of the present invention necessarily contains as R
2+The Ca of one of (earth alkali metal)
2+, contain in addition and be selected from by Mg
2+, Sr
2+And Ba
2+At least a in the group of forming.
In addition, R
2+Total containing ratio be preferably 30.0～70.0%, more preferably 33.0～70.0%.This be because, containing ratio can obtain more stable glass when such scope.
R
2+Total containing ratio more preferably more than 35.0%, further be preferably more than 38.0%.In addition, more preferably below 65.0%, further be preferably below 60.0%.
<Ca
2+>
Opticglass of the present invention necessarily contains Ca
2+Ca
2+Has the reduction that improves anti-increased devitrification resistance, suppresses specific refractory power, the character that reduces the stage of wear of glass.
Because such character strengthens, so Ca
2+Containing ratio be preferably 1.0%～8.0%.In addition, more preferably more than 2.0%, further be preferably more than 3.0%.In addition, more preferably below 7.0%, further be preferably below 6.0%.
In addition, if Ca
2+With other earth alkali metal, promptly be selected from by Mg
2+, Sr
2+And Ba
2+At least a being present in simultaneously in the glass in the group of forming, then its character that improves the anti-increased devitrification resistance of glass, the reduction that suppresses specific refractory power, reduction stage of wear strengthens, and particularly its character that improves the anti-increased devitrification resistance of glass strengthens.Opticglass of the present invention is with Ca
2+As must composition, contain in addition and be selected from by Mg
2+, Sr
2+And Ba
2+At least a in the group of forming.Because such character strengthens, so Ca
2+Containing ratio be preferably 1.0%～8.0%, and, R
2+Total containing ratio be preferably 30.0～70.0%, more preferably 33.0～70.0%.
Can be through using for example Ca (PO
3)
2, CaCO
3, CaF
2Deng making Ca as raw material
2+Be included in the glass.
In addition, for the special anti-increased devitrification resistance that improves opticglass of the present invention, Ca
2+Containing ratio and whole ratio (Ca of the total amount of earth alkali metal (total containing ratio)
2+/ R
2+) lower limit be preferably 0.001, more preferably 0.005, most preferably be 0.01.In addition, its upper limit is preferably 0.90, and more preferably 0.70, most preferably be 0.50.
<Mg
2+>
Opticglass of the present invention has and contains as R
2+The Mg of one of (earth alkali metal)
2+Situation.Mg
2+Has the anti-increased devitrification resistance that improves glass, the character that reduces stage of wear.
Because such character strengthens, Mg
2+Containing ratio be preferably 1.0～20.0%.In addition, more preferably more than 3.0%, further be preferably more than 5.0%.In addition, more preferably below 17.0%, further be preferably below 15.0%.
Can be through using for example MgO, MgF
2Deng making Mg as raw material
2+Be included in the glass.
<Sr
2+>
Opticglass of the present invention has and contains as R
2+The Sr of one of (earth alkali metal)
2+Situation.Sr
2+Has the anti-increased devitrification resistance that improves glass, the character that suppresses the specific refractory power reduction.
Because such character strengthens, so Sr
2+Containing ratio be preferably 0%～20.0%.In addition, more preferably below 10.0%, further be preferably below 5.0%.
Can be through using for example Sr (NO
3)
2, SrF
2Deng making Sr as raw material
2+Be included in the glass.
<Ba
2+>
Opticglass of the present invention has and contains as R
2+The Ba of one of (earth alkali metal)
2+Situation.Ba
2+The character that when containing specified amount, has the anti-increased devitrification resistance that improves glass.In addition, has the character of keeping low dispersivity, improving specific refractory power.
Because such character strengthens, so Ba
2+Containing ratio be preferably 15.0%～40.0%.In addition, more preferably more than 16.0%, further be preferably more than 17.0%.In addition, more preferably below 38.0%, further be preferably below 37.0%.
Can be through using for example Ba (PO
3)
2, BaCO
3, Ba (NO
3)
2, BaF
2Deng making Ba as raw material
2+Be included in the glass.
<Ln
3+>
Ln among the present invention
3+Be meant and be selected from by Y
3+, La
3+, Gd
3+, Yb
3+And Lu
3+At least a in the group of forming.In addition, Ln
3+Total containing ratio be meant the total containing ratio (Y of these 5 kinds of ionic
3++ La
3++ Gd
3++ Yb
3++ Lu
3+).
Opticglass of the present invention contains Ln with the total containing ratio that surpasses below 1.1% and 10.0%
3+That is, opticglass of the present invention contains and is selected from by Y
3+, La
3+, Gd
3+, Yb
3+And Lu
3+At least a in the group of forming, and Y
3+, La
3+, Gd
3+, Yb
3+And Lu
3+The summation of containing ratio of each composition for surpassing below 1.1% and 10.0%.Because opticglass of the present invention contains the Ln of specified quantitative
3+, so the character of the more high and low chromatic dispersion of specific refractory power is remarkable.
Because such character strengthens, so Ln
3+Total containing ratio be preferably more than 1.5%, more preferably more than 2.0%.In addition, be preferably below 9.0%, more preferably below 8.0%, further be preferably below 7.0%.
In addition, with respect to Ln
3+The Gd of total containing ratio
3+Containing ratio be preferably greater than 0.74.That is Y,
3+, La
3+, Gd
3+, Yb
3+And Lu
3+The containing ratio of each cation constituent preferably satisfy Gd
3+/ (Y
3++ La
3++ Gd
3++ Yb
3++ Lu
3+The relation of)＞0.74.In addition, the Gd on the left side
3+/ (Y
3++ La
3++ Gd
3++ Yb
3++ Lu
3+) more preferably more than 0.80, more preferably more than 0.90, further be preferably 1.00.This be because, if satisfy such relation, then have the tendency that anti-increased devitrification resistance uprises, specific refractory power uprises of glass.
<Y
3+>
Opticglass of the present invention has the Y of containing
3+Situation.Y
3+The character that has the specific refractory power that not only improves glass but also make the anomalous dispersion property of glass be difficult to reduce, suppress the rising of glass transition point (Tg) and improve the anti-increased devitrification resistance of glass.But if excessive containing, then stability is prone to worsen, and therefore more preferably below 9.0%, more preferably below 8.0%, further is preferably below 7.0%.In addition, even owing to do not contain Y
3+Also can access glass of the present invention, therefore put, also can not contain Y from this
3+
Can be through using for example Y
2O
3, YF
3Deng making Y as raw material
3+Be included in the glass.
<La
3+>
Opticglass of the present invention has the La of containing
3+Situation.La
3+The character that has the specific refractory power that not only improves glass but also make anomalous dispersion property be difficult to reduce.
Because such character strengthens, so La
3+Containing ratio more preferably more than 1.5%, further be preferably more than 2.0%.In addition, more preferably below 9.0%, more preferably below 8.0%, further be preferably below 7.0%.
Can be through using for example La
2O
3, LaF
3Deng making La as raw material
3+Be included in the glass.
<Gd
3+>
Opticglass of the present invention preferably contains Gd
3+, more preferably contain Gd with the containing ratio that surpasses below 0% and 10.0%
3+Gd
3+Have the specific refractory power that not only improves glass but also make anomalous dispersion property be difficult to reduce and then improve the character of anti-increased devitrification resistance.Though there is other compositions (Y for example
3+, La
3+, Yb
3+And Lu
3+) also have the situation of such character, but the inventor finds Gd
3+Compare with other compositions, have the stronger tendency of such character.
Because such character strengthens, so Gd
3+Containing ratio more preferably more than 1.5%, further be preferably more than 2.0%.In addition, more preferably below 9.0%, more preferably below 8.0%, further be preferably below 7.0%.
Can be through using for example Gd
2O
3, GdF
3Deng making Gd as raw material
3+Be included in the glass.
<Yb
3+>
Opticglass of the present invention has the Yb of containing
3+Situation.Yb
3+Have the specific refractory power that not only improves glass but also make anomalous dispersion property be difficult to reduce and then improve the character of anti-increased devitrification resistance.
Because such character strengthens, so Yb
3+Containing ratio more preferably more than 1.5%, further be preferably more than 2.0%.In addition, more preferably below 9.0%, more preferably below 8.0%, further be preferably below 7.0%.
Can be through using for example Yb
2O
3Deng making Yb as raw material
3+Be included in the glass.
<Lu
3+>
Opticglass of the present invention has the Lu of containing
3+Situation.Lu
3+Have the specific refractory power that not only improves glass but also make anomalous dispersion property be difficult to reduce and then improve the character of anti-increased devitrification resistance.
Because such character strengthens, so Lu
3+Containing ratio more preferably more than 1.5%, further be preferably more than 2.0%.In addition, more preferably below 9.0%, more preferably below 8.0%, further be preferably below 7.0%.
Can be through using for example Lu
2O
3Deng making Lu as raw material
3+Be included in the glass.
<Zn
2+>
Opticglass of the present invention can also contain the Zn as any composition
2+Zn
2+Has the character that suppresses stage of wear, improves specific refractory power.But if excessive containing, then the stability of glass is prone to worsen, and therefore is preferably below 6.5%, more preferably below 6.0%, further is preferably below 5.5%.In addition, even owing to do not contain Zn
2+Also can access glass of the present invention, therefore put, also can not contain Zn from this
2+
Can be through using for example Zn (PO
3)
2, ZnO, ZnF
2Deng making Zn as raw material
2+Be included in the glass.
<Si
4+>
Opticglass of the present invention can also contain the Si as any composition
4+Si
4+When containing specified amount, have the anti-increased devitrification resistance that improves glass, improve specific refractory power and reduce stage of wear and improve the character of processibility.
Because such character strengthens, so Si
4+Containing ratio be preferably below 10.0%, more preferably below 8.0%, further preferred below 5.0%.
Can be through using for example SiO
2, K
2SiF
6, Na
2SiF
6Deng making Si as raw material
4+Be included in the glass.
<B
3+>
Opticglass of the present invention can also contain the B as any composition
3+B
3+When containing specified amount, have the anti-increased devitrification resistance that improves glass, improve specific refractory power and reduce stage of wear and improve processibility and then make chemical durability be difficult to worsen, reduce the character of the formation of glass cord.
Because such character strengthens, so B
3+Containing ratio be preferably below 10.0%, more preferably below 8.0%, further preferred below 5.0%.
Can be through using for example H
3BO
3, Na
2B
4O
7, BPO
4Deng making B as raw material
3+Be included in the glass.
<Li
+>
Opticglass of the present invention can also contain the Li as any composition
+Li
+Have the anti-increased devitrification resistance when keeping glass formation, and reduce the character of glass transition point (Tg).
Because such character strengthens, so Li
+Containing ratio be preferably below 20.0%, more preferably below 15.0%, further be preferably below 10.0%.
Can be through using for example Li
2CO
3, LiNO
3, LiF etc. makes Li as raw material
+Be included in the glass.
<Na
+>
Opticglass of the present invention can also contain the Na as any composition
+Na
+Have the anti-increased devitrification resistance when keeping glass and forming and reduce the character of glass transition point (Tg).
Because such character strengthens, so Na
+Containing ratio be preferably below 10.0%, more preferably below 8.0%, further be preferably below 5.0%.
Can be through using for example Na
2CO
3, NaNO
3, NaF, Na
2SiF
6Deng making Na as raw material
+Be included in the glass.
<K
+>
Opticglass of the present invention can also contain the K as any composition
+K
+Have the anti-increased devitrification resistance when keeping glass and forming and reduce the character of glass transition point (Tg).
Because such character strengthens, so K
+Containing ratio be preferably below 10.0%, more preferably below 8.0%, further preferred below 5.0%.
Can be through using for example K
2CO
3, KNO
3, KF, KHF
2, K
2SiF
6Deng making K as raw material
+Be included in the glass.
<Rn
+>
In the opticglass of the present invention, Rn
+(Rn
+Be to be selected from by Li
+, Na
+And K
+At least a in the group of forming) total containing ratio is preferably below 20.0%, more preferably below 15.0%, further is preferably below 10.0%.
<Nb
5+>
Opticglass of the present invention can also contain the Nb as any composition
5+Nb
5+Have specific refractory power, the raising chemical durability that improves glass and then suppress the character that Abbe number reduces, the inhibition melt temperature raises.
Because such character strengthens, so Nb
5+Containing ratio be preferably below 10.0%, more preferably below 8.0%, further be preferably below 5.0%.
Can be through using for example Nb
2O
5Deng making Nb as raw material
5+Be included in the glass.
<Ti
4+>
Opticglass of the present invention can also contain the Ti as any composition
4+Ti
4+Has the specific refractory power, the painted character of reduction that improve glass.
Because such character strengthens, so Ti
4+Containing ratio be preferably below 10.0%, more preferably below 8.0%, further preferred below 5.0%.
Can be through using for example TiO
2Deng making Ti as raw material
4+Be included in the glass.
<Zr
4+>
Opticglass of the present invention can also contain the Zr as any composition
4+Zr
4+Has the specific refractory power that improves glass, the character that improves the physical strength of glass.
Because such character strengthens, so Zr
4+Containing ratio be preferably below 10.0%, more preferably below 8.0%, further be preferably below 5.0%.
Can be through using for example ZrO
2, ZrF
4Deng making Zr as raw material
4+Be included in the glass.
<Ta
5+>
Opticglass of the present invention can also contain the Ta as any composition
5+Ta
5+Character with the specific refractory power that improves glass.
Because such character strengthens, so Ta
5+Containing ratio be preferably below 10.0%, more preferably below 8.0%, further be preferably below 5.0%.
Can be through using for example Ta
2O
5Deng making Ta as raw material
5+Be included in the glass.
<W
6+>
Opticglass of the present invention can also contain the W as any composition
6+W
6+Have specific refractory power that improves glass and then the character that suppresses the reduction of Abbe number.
Because such character strengthens, so W
6+Containing ratio be preferably below 10.0%, more preferably below 8.0%, further be preferably below 5.0%.
Can be through using for example WO
3Deng making W as raw material
6+Be included in the glass.
<Ge
4+>
Opticglass of the present invention can also contain the Ge as any composition
4+Ge
4+Has the specific refractory power that improves glass, the character that improves the anti-increased devitrification resistance of glass.
Because such character becomes obviously, so Ge
4+Containing ratio be preferably below 10.0%, more preferably below 8.0%, further be preferably below 5.0%.
Can be through using for example GeO
2Deng making Ge as raw material
4+Be included in the glass.
<Bi
3+>
Opticglass of the present invention can also contain the Bi as any composition
3+Bi
3+Has the specific refractory power that improves glass, the character that reduces glass transition point.
Because such character strengthens, so Bi
3+Containing ratio be preferably below 10.0%, more preferably below 8.0%, further be preferably below 5.0%.
Can be through using for example Bi
2O
3Deng making Bi as raw material
3+Be included in the glass.
<Te
4+>
Opticglass of the present invention can also contain the Te as any composition
4+Te
4+Have the specific refractory power that can improve glass, be difficult to devitrification, suppress painted character.
Because such character strengthens, so Te
4+Containing ratio be preferably below 15.0%, more preferably below 10.0%, more preferably below 8.0%, further be preferably below 5.0%.
Can be through using for example TeO
2Deng making Te as raw material
4+Be included in the glass.
About anionic component
<F
->
Opticglass of the present invention contains F
-F
-Have the anomalous dispersion property that improves glass and Abbe number and then make glass be difficult to the character of devitrification.
Because such character strengthens, so % representes with negatively charged ion, F
-Containing ratio be preferably 15.0～40.0%.In addition, more preferably more than 18.0%, further be preferably more than 20.0%.In addition, more preferably below 35.0%, further be preferably below 33.0%.
Can be through using for example AlF
3, MgF
2, BaF
2Fluorochemical etc. various cation constituents makes F as raw material
-Be included in the glass.
<O
2->
Opticglass of the present invention contains O
2-O
2-Be for character with the stage of wear rising that suppresses glass and the necessary composition of formation reticulated structure.
% representes with negatively charged ion, O
2-Containing ratio and F
-The summation of containing ratio be preferably more than 98.0%, more preferably more than 99.0%, further be preferably 100%.This is owing to can obtain stable glass like this.
Can be through using for example Al
2O
3, various cation constituents such as MgO, BaO oxide compound, Al (PO)
3, Mg (PO)
2, Ba (PO)
2Make O etc. phosphoric acid salt of various cation constituents etc. as raw material
2-Be included in the glass.
In the opticglass of the present invention, in the scope of the characteristic of the glass that does not damage the application invention, can add other compositions as required.
About the composition that should not contain
In the face of reaching the composition that does not preferably contain, the composition that should not contain in the opticglass of the present invention describes down.
Even contain a spot of during independent respectively or compoundly except Ti, Zr, Nb, W, La, Gd, Y, Yb, the positively charged ion of transition metal such as V, Cr, Mn, Fe, Co, Ni, Cu, Ag and Mo the Lu; Owing to have glass coloring, the visibility region certain wavelengths is produced the character that absorbs, particularly in the opticglass of the wavelength that uses visibility region, preferably in fact do not contain these compositions.
In addition, the positively charged ion of Pb, Th, Cd, Tl, Os, Be and Se has the tendency of controlling use as harmful chemical in recent years, not only in glass manufacturing process, so that need take the measure on the environmental cure in the processing after manufacturing procedure and commercialization.Therefore, during influencing on paying attention to environment, except inevitably sneaking into, preferably in fact do not contain these compositions.Thus, make the material that does not contain contaminate environment in the opticglass.Therefore, even if do not take the measure on the special environmental cure, also can make, process and discard this opticglass.
In addition, though Sb is useful as deaerating agent,, S b has and makes it not be included in the tendency in the opticglass as bringing disadvantageous composition to environment in recent years, puts from this, does not preferably contain Sb.
Sum up the above, the optimal way of opticglass of the present invention is shown.
Opticglass of the present invention is preferably following opticglass: % representes with positively charged ion, contains as cation constituent:
P
5+：25～50％，
Al
3+：5～15％，
Ca
2+：1～8％，
R
2+：30～70％，
Gd
3+: surpass below 0% and 10.0%,
Ln
3+: surpass below 1.1% and 10.0%;
% representes with negatively charged ion, contains as anionic component:
F
-：15～40％，
The specific refractory power of said opticglass (nd) >=1.55, Abbe number (ν d) >=55.
In addition, and then more preferably Y
3+, La
3+, Gd
3+, Yb
3+And Lu
3+The containing ratio of each cation constituent satisfy Gd
3+/ (Y
3++ La
3++ Gd
3++ Yb
3++ Lu
3+The opticglass of the relation of)＞0.74.
Method of manufacture
The method of manufacture of opticglass of the present invention is not special to be limited.For example can make as follows: above-mentioned raw materials is carried out uniform mixing according to each composition in the scope of the containing ratio of regulation; With the preparation mixture put into carry out thick fusion in quartz crucible or alumina crucible or the platinum crucible after; Put in platinum crucible, platinum alloy crucible or the iridium crucible, fusion is 2～10 hours under 900～1200 ℃ TR, stirring; After carrying out froth breaking etc.; Be reduced to the temperature below 850 ℃, carry out the post-treatment stirring then and remove striped, thereby be poured into slowly cooling manufacturing in the mould.
Rerum natura
Opticglass of the present invention with partial dispersion than (θ g F) is characteristic.Therefore, obtain the opticglass of complementary color aberration accurately easily.
Partial dispersion is than (θ g F) is preferably more than 0.535, more preferably more than 0.538, more preferably more than 0.540, further is preferably more than 0.542.
In addition, partial dispersion is than (θ g F) is meant according to Japanese optics nitre industry and can measures the value that obtains by standard JOGIS01-2003.
In addition, the said partial dispersion of the present invention is than the partial dispersion ratio that is meant in the short wavelength zone.
The anomalous dispersion property of opticglass of the present invention (Δ θ g, F) height.Therefore, obtain the lens of complementary color aberration accurately easily.
(Δ θ g F) is preferably more than 0.006 anomalous dispersion property, more preferably more than 0.008, more preferably more than 0.010, more preferably more than 0.011, more preferably more than 0.012, further is preferably more than 0.013.
Here, to partial dispersion than (θ g, F) (Δ θ g F) describes, and then, the characteristic in the rerum natura of opticglass of the present invention is illustrated in greater detail with anomalous dispersion property.
At first, to partial dispersion than (θ g F) describes.
Partial dispersion is than (θ g F) for the ratio of the refractive index difference of certain 2 wavelength region may in the wavelength dependency that is illustrated in specific refractory power, representes in order to following formula (1).
θ g, F=(n
g-n
F)/(n
F-n
C) ... Formula (1)
Here, n
gBe the specific refractory power of g ray (435.83nm), n
FBe the specific refractory power of F ray (486.13nm), n
CIt is the specific refractory power of C ray (656.27nm).
And, if with this partial dispersion than (θ g F) ties up on the XY chart with the pass of Abbe number (ν d) and maps, and the situation of then common opticglass is to drop on basically on the straight line that is called as reference line.Reference line is meant: adopting partial dispersion than (θ g be that the longitudinal axis, Abbe number (ν d) are (on the rectangular coordinates) on the XY chart of transverse axis F), and connecting NSL7 that partial dispersion is got than mapping with Abbe number and these 2 of PBM2 and slope is positive straight line (with reference to Fig. 1).As the normal glass of the benchmark of reference line, though according to the difference of each opticglass manufacturers and difference, each company all be with almost equal slope and intercept define (NSL7 and PBM2 are the opticglass that Kabushiki Kaisya Ohara makes; The Abbe number of NSL 7 (ν d) is 60.5; Partial dispersion is than (θ g is 0.5436 F), and the Abbe number of PBM2 (ν d) is 36.3; Partial dispersion is than (θ g is 0.5828 F)).
With respect to such partial dispersion than (θ g, F), (Δ θ g is that the expression partial dispersion is than (θ g, which kind of degree the figure that F) makes with Abbe number (ν d) is offset to from reference line to y direction F) to anomalous dispersion property.(Δ θ g, F) optical element that constitutes of big glass has near the wavelength region blue and can compensate the character by other the chromatic aberation that lens produced by anomalous dispersion property.
In addition, in low dispersion area (Abbe number is the zone more than about 55), had in the past that Abbe number (ν d) is bigger, anomalous dispersion property (Δ θ g, F) a big more tendency.And then in distress so that stage of wear is 510 to make anomalous dispersion property maintain the elevated tendency when as follows.
The inventor furthers investigate, and has successfully developed anomalous dispersion property (Δ θ g, the opticglass that value F) is higher compared with opticglass in the past with respect to Abbe number (ν d).
For example, if the opticglass of the optimal way of back shown in the embodiment then can obtain Abbe number (ν d) when being 66～68 left and right sides, partial dispersion than (θ g, F) be more than 0.545 and anomalous dispersion property (Δ θ g F) is opticglass more than 0.013.Such partial dispersion is than (θ g, F) (Δ θ g, value F) is compared with the opticglass in the past with the Abbe number (ν d) with degree, is tangible high value with anomalous dispersion property.
Opticglass of the present invention not only has high specific refractory power (nd), and has low dispersivity (high Abbe number).
Specific refractory power (nd) is more than 1.55, is preferably more than 1.56, more preferably more than 1.57.
Abbe number (ν d) is more than 55, is preferably more than 58, more preferably more than 60, further is preferably more than 66.
Opticglass of the present invention is owing to possess such specific refractory power (nd) and Abbe number (ν d), thus the expansion of the degree of freedom of optical design, even and if then the slimming of seeking element also can obtain big light refraction amount.
In addition, specific refractory power (nd) and Abbe number (ν d) are meant according to Japanese optics nitre industry and can measure the value that obtains by standard JOGIS01-2003.
Opticglass stage of wear of the present invention is low.Therefore, can reduce unnecessary abrasion of opticglass or damage, the processing in the attrition process of opticglass is become easily, be easy to carry out attrition process.
Stage of wear is preferably below 510, more preferably below 500, more preferably below 490, more preferably below 480; More preferably below 470, more preferably below 460, more preferably below 450; More preferably below 440, more preferably below 430, further be preferably below 420.
On the other hand, if stage of wear is crossed the low tendency that has attrition process to become difficulty on the contrary.Therefore, stage of wear is preferably more than 80, more preferably more than 100, further is preferably more than 120.
In addition, stage of wear is meant based on " measuring method of the stage of wear of JOGIS10-1994 opticglass " and measures the value that obtains.
" preform and optical element "
Opticglass of the present invention is useful in various optical elements and optical design; Wherein, Especially preferably form preform, and this preform is adopted methods such as attrition process or precise press molding, make optical elements such as lens, prism, mirror by opticglass of the present invention.Thus, be used for photographic camera, projector etc. and so on make the opticinstrument of visible light transmissive optical element the time, can realize high meticulous and high-precision imaging characteristic, and can seek the miniaturized of the optics system in these opticinstruments.Here; Make not special qualification of method of preform material; For example can adopt by the method for manufacture of the opticglass of putting down in writing among the manufacturing process of the glass gob of putting down in writing among the japanese kokai publication hei 8-319124 or the japanese kokai publication hei 8-73229 and manufacturing installation such directly make the method for preform material by melten glass; In addition, also can adopt the band material that is formed by opticglass is ground the method that cold working such as cutting grinding is made.
Embodiment
As the glass composition of the embodiment 1～5 of opticglass of the present invention, specific refractory power (nd), Abbe number (ν d), partial dispersion than (θ g, F), anomalous dispersion property (Δ θ g, F), stage of wear and proportion (g/cm
3) be shown in Table 1.
The opticglass of embodiments of the invention 1～5; All select the raw material of the common employed high-purity raw of fluorphosphate glass such as corresponding separately oxide compound, carbonate, nitrate salt, fluorochemical, metaphosphoric acid compound, carry out weighing according to the ratio of the composition of each embodiment shown in the table 1, behind the uniform mixing as each composition; Put in the platinum crucible; Fusion difficulty according to glass is formed was fused in 900～1200 ℃ TR 2～10 hours with electric furnace, stirred, carry out froth breaking etc. after; Temperature is dropped to be poured into below 850 ℃ in the mould again, slowly the cooling back makes glass.
Here, specific refractory power (nd), Abbe number (ν d) and the partial dispersion of can standard JOGIS01-2003 having measured the opticglass of embodiment 1～5 based on the industry of Japanese optics nitre than (θ g, F).In addition, as the glass that uses in this mensuration, use with annealing conditions and set the glass that the speed that slowly cools is handled for the slow cool furnace of-25 ℃/hr for.And, by the partial dispersion on the reference line in the Abbe number that records (ν d), that be positioned at Fig. 1 than (θ g, value F) and the partial dispersion that records than (θ g, value F) poor, obtain anomalous dispersion property (Δ θ g, F).
In addition, stage of wear is measured based on " measuring method of the stage of wear of JOGIS10-1994 opticglass ".Promptly; The square glass plate sample level of 30 * 30 * 10mm size is placed on the fixed position of 80mm apart from the center of the cast iron plane ware (250mm φ) of PM rotation 60 times; The limit vertically applies the loading of 9.8N (1kgf); The limit is likewise supplied with the lapping liquid that in water 20mL, has added 10g#800 (median size 20 μ m) abrasive substances (aluminum oxide A abrasive particle) and is rubbed in 5 minutes time, measure the sample mass before and after grinding, and obtains the abrasion quality.Operate equally, obtain the abrasion quality of the specified standard test specimen of Japanese optics nitre industry meeting,
By the computes stage of wear: stage of wear={ (the abrasion quality/proportion of sample)/(the abrasion quality/proportion of standard test specimen) } * 100.
In addition, proportion is represented the value of the pure water with respect to+4 ℃, is tried to achieve by Archimedes's method.
Table 1
As shown in table 1, the opticglass of embodiments of the invention, its specific refractory power (nd) is more than 1.55, and Abbe number (ν d) is more than 55.
In addition, particularly, in all embodiment, specific refractory power (nd) also is more than 1.59, and Abbe number (ν d) is more than 66.In addition, partial dispersion is than (θ g is more than 0.545 F), and (Δ θ g is more than 0.013 F) to anomalous dispersion property.
Such partial dispersion is than (θ g, F) (Δ θ g, value F) is compared with the opticglass in the past with the Abbe number (ν d) with degree, is obvious high value with anomalous dispersion property.
And then the stage of wear of all embodiment is below 510.
In addition, proportion is below 4.22.
And then, use the opticglass of embodiments of the invention, form attrition process with preform after, grind and cut and grind, be processed into lens and prismatical shape.In addition, use the opticglass of the embodiment of the invention, form precise press molding and use preform, and precise press molding is carried out precise press molding processing and is processed into lens and prismatical shape with preform.In either case, can be processed into various lens or prismatical shape.
Claims (11)
1. an opticglass wherein, contains P as cation constituent
5+, Al
3+, Ca
2+, Ln
3+(Ln
3+Be to be selected from by Y
3+, La
3+, Gd
3+, Yb
3+And Lu
3+At least aly in the group of forming) and be selected from by Mg
2+, Sr
2+And Ba
2+At least a in the group of forming;
% representes with positively charged ion, Ln
3+Total containing ratio for surpassing below 1.1% and 10.0%,
Contain F as anionic component
-,
The specific refractory power of said opticglass (nd) >=1.55, Abbe number (ν d) >=55.
2. opticglass according to claim 1, wherein, % representes with positively charged ion, contains as cation constituent:
P
5+：25～50％，
Al
3+：5～15％，
Ca
2+：1～8％，
R
2+: 30～70% (R
2+Be meant Ca
2++ Mg
2++ Sr
2++ Ba
2+),
Gd
3+: surpass below 0% and 10.0%;
% representes with negatively charged ion, contains as anionic component:
F
-：15～40％。
3. opticglass according to claim 1 and 2, wherein, Y
3+, La
3+, Gd
3+, Yb
3+And Lu
3+The containing ratio of each cation constituent satisfy Gd
3+/ (Y
3++ La
3++ Gd
3++ Yb
3++ Lu
3+The relation of)＞0.74.
4. according to each described opticglass in the claim 1～3, wherein, % representes with positively charged ion, R
2+Total containing ratio be 33～70%.
5. according to each described opticglass in the claim 1～4, wherein, do not contain Sb.
6. according to each described opticglass in the claim 1～5, wherein, do not contain Y.
7. according to each described opticglass in the claim 1～6, its stage of wear is below 510.
8. optical element, it is formed by each described opticglass in the claim 1～7.
An attrition process with and/or the preform used of precise press molding, it is formed by each described opticglass in the claim 1～7.
10. optical element, it forms for the described preform of claim 9 is ground.
11. an optical element, it is for forming the accurate compacting of the described preform of claim 9.
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| CN105036550A (en) * | 2014-04-25 | 2015-11-11 | 株式会社小原 | Optical glass, optical element and fabric preform |
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| CN110590157A (en) * | 2018-06-12 | 2019-12-20 | 株式会社小原 | Optical glass, optical element and preform |
| CN111153591A (en) * | 2015-04-10 | 2020-05-15 | 成都光明光电股份有限公司 | Optical glass |
| CN111995247A (en) * | 2020-09-08 | 2020-11-27 | 成都光明光电股份有限公司 | Optical glass, optical preform, optical element and optical instrument |
| CN112110644A (en) * | 2020-09-23 | 2020-12-22 | 成都光明光电股份有限公司 | Glass composition and chemically strengthened glass |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4990468A (en) * | 1988-10-06 | 1991-02-05 | Sumita Optical Glass, Inc. | Fluorophosphate optical glass |
| JP2003160356A (en) * | 2001-11-26 | 2003-06-03 | Hoya Corp | Optical glass and optical part |
| CN1854100A (en) * | 2005-03-30 | 2006-11-01 | Hoya株式会社 | Optical glass, press-molding preform, process for the production thereof, optical element and process for the production thereof |
| CN101172754A (en) * | 2006-10-19 | 2008-05-07 | Hoya株式会社 | Method for producing glass perform and method for producing optical component |
| CN101196571A (en) * | 2006-12-05 | 2008-06-11 | Hoya株式会社 | Optical glass and optical element |
| WO2009099230A1 (en) * | 2008-02-08 | 2009-08-13 | Nihon Yamamura Glass Co., Ltd. | Optical glass |
| CN101544469A (en) * | 2008-03-28 | 2009-09-30 | Hoya株式会社 | Fluorophosphate glass, precision press molding preform, optical element blank, optical element and methods of manufacturing the same |
| CN101555099A (en) * | 2008-03-28 | 2009-10-14 | Hoya株式会社 | Fluorophoshoric acid glass, die pressing forming glass material, optical element blank, optical element and manufacturing method thereof |
| JP2009256149A (en) * | 2008-04-18 | 2009-11-05 | Hoya Corp | Optical glass, method of producing the same, optical element and method of producing optical element |
| CN101591143A (en) * | 2008-05-30 | 2009-12-02 | Hoya株式会社 | Opticglass, glass material for press molding, optical element blank, optical element and manufacture method thereof |
| CN101622207A (en) * | 2007-03-06 | 2010-01-06 | Hoya株式会社 | Opticglass, preform for press forming, optical element and their manufacture method |
| CN101666884A (en) * | 2008-09-04 | 2010-03-10 | Hoya株式会社 | Preform group and manufacturing method of optical elements |
| JP2010059019A (en) * | 2008-09-04 | 2010-03-18 | Hoya Corp | Fluorophosphate glass, glass material for press molding, optical element blank, optical element and methods for producing the same |
| JP2010235429A (en) * | 2009-03-31 | 2010-10-21 | Ohara Inc | Optical glass, optical element and preform |
-
2010
- 2010-12-20 CN CN201010609331.7A patent/CN102557437B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4990468A (en) * | 1988-10-06 | 1991-02-05 | Sumita Optical Glass, Inc. | Fluorophosphate optical glass |
| EP0364150B1 (en) * | 1988-10-06 | 1992-12-09 | Sumita Optical Glass, Inc. | A fluorophosphate optical glass |
| JP2003160356A (en) * | 2001-11-26 | 2003-06-03 | Hoya Corp | Optical glass and optical part |
| JP3973410B2 (en) * | 2001-11-26 | 2007-09-12 | Ｈｏｙａ株式会社 | Optical glass and optical components |
| CN1854100A (en) * | 2005-03-30 | 2006-11-01 | Hoya株式会社 | Optical glass, press-molding preform, process for the production thereof, optical element and process for the production thereof |
| CN101172754A (en) * | 2006-10-19 | 2008-05-07 | Hoya株式会社 | Method for producing glass perform and method for producing optical component |
| CN101196571A (en) * | 2006-12-05 | 2008-06-11 | Hoya株式会社 | Optical glass and optical element |
| CN101622207A (en) * | 2007-03-06 | 2010-01-06 | Hoya株式会社 | Opticglass, preform for press forming, optical element and their manufacture method |
| WO2009099230A1 (en) * | 2008-02-08 | 2009-08-13 | Nihon Yamamura Glass Co., Ltd. | Optical glass |
| CN101544469A (en) * | 2008-03-28 | 2009-09-30 | Hoya株式会社 | Fluorophosphate glass, precision press molding preform, optical element blank, optical element and methods of manufacturing the same |
| CN101555099A (en) * | 2008-03-28 | 2009-10-14 | Hoya株式会社 | Fluorophoshoric acid glass, die pressing forming glass material, optical element blank, optical element and manufacturing method thereof |
| JP2009256149A (en) * | 2008-04-18 | 2009-11-05 | Hoya Corp | Optical glass, method of producing the same, optical element and method of producing optical element |
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