CN103958427A - Optical glass, preform, and optical element - Google Patents

Optical glass, preform, and optical element Download PDF

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Publication number
CN103958427A
CN103958427A CN 201280059731 CN201280059731A CN103958427A CN 103958427 A CN103958427 A CN 103958427A CN 201280059731 CN201280059731 CN 201280059731 CN 201280059731 A CN201280059731 A CN 201280059731A CN 103958427 A CN103958427 A CN 103958427A
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component
glass
preferably
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optical
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CN 201280059731
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Chinese (zh)
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土渊菜那
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株式会社小原
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B1/00Optical elements characterised by the material of which they are made
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL 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
    • C03C3/00Glass compositions
    • C03C3/04Glass compositions containing silica
    • C03C3/062Glass compositions containing silica with less than 40% silica by weight
    • C03C3/064Glass compositions containing silica with less than 40% silica by weight containing boron
    • C03C3/068Glass compositions containing silica with less than 40% silica by weight containing boron containing rare earths

Abstract

Provided at a lower cost is an optical glass having high transparency to visible light while the refractive index (nd) and the Abbe number (nud) of the glass remain within a predetermined range. The optical glass contains 5.0% to 40.0% of B2O3 component, 10.0% to 40.0% of La2O3 component, and 10.0% to 40.0% of ZnO component, by mass, in relation to the total mass of the glass, and the composition of the glass being calculated in terms of oxides. The glass has a refractive index (nd) of 1.75 or higher and an Abbe number (nud) of 30-40.

Description

光学玻璃、预成型体及光学元件 The optical glass preform and an optical element

技术领域 FIELD

[0001] 本发明涉及光学玻璃、预成型体及光学元件。 [0001] The present invention relates to an optical glass preform and an optical element.

背景技术 Background technique

[0002] 近年来,使用光学系统的设备的数字化和高精细化急速发展,在数码相机、摄像机等摄影设备、投影机、投影电视等图像播放(投影)设备等各种光学设备的领域中,减少光学系统中使用的透镜、棱镜等光学元件的个数,使光学系统整体轻质化及小型化的要求增强。 [0002] In recent years, digital and high-definition system, the rapid development of optical devices, various optical devices in the field of digital cameras, video cameras and other photographic equipment, a projector, a projection TV displays the image (projection) device or the like, reducing the number of optical lens elements, the optical prism used in the system, the overall weight reduction and downsizing of the optical system requires enhanced.

[0003] 在制作光学元件的光学玻璃中,尤其是可实现光学系统整体的轻质化及小型化的、具有1.75以上的折射率(nd),具有30以上40以下的阿贝数(vd)的高折射率低分散玻璃的需求非常强烈。 [0003] In the optical glass of producing an optical element, in particular a lightweight can be achieved and miniaturization of the entire optical system, having a refractive index of 1.75 or greater (Nd), Abbe number of 30 or more having (vd) 40 or less demand for high refractive index and low dispersion glass is very strong. 作为这样的高折射率低分散玻璃,已知以专利文献I~3为代表那样的玻璃组合物。 As such a high-refractivity low-dispersion glass, known to Patent Documents I ~ 3 as represented by the glass composition.

[0004] 现有技术文献 [0004] The prior art documents

[0005] 专利文献 [0005] Patent Document

[0006] 专利文献1:日本特开昭48 - 059116号公报 [0006] Patent Document 1: Japanese Patent Laid-Open Sho 48 - Publication No. 059,116

[0007] 专利文献2:日本特开昭52 - 103412号公报 [0007] Patent Document 2: Japanese Patent Laid-Open Sho 52 - Publication No. 103,412

[0008] 专利文献3:日本特开2004 - 161506号公报 [0008] Patent Document 3: Japanese Laid-Open 2004-- Publication No. 161506

发明内容 SUMMARY

[0009] 为了降低光学玻璃的材料成本,期望光学玻璃的原料尽可能廉价。 [0009] In order to reduce the cost of the optical glass material, optical glass material is desirable as inexpensive as possible. 但是,专利文献I~3所记载的玻璃组合物含有大量原料昂贵的成分即Ta2O5成分、Nb2O5成分、以及Gd2O3成分、Yb2O3成分等稀土成分,因此很难说充分满足了上述要求。 However, Patent Documents I ~ 3 described glass composition containing a large amount of expensive feed ingredients i.e. component Ta2O5, Nb2O5 component, and Gd2O3 component, rare earth component of Yb2O3 component, it is difficult to say fully satisfies the above requirements.

[0010] 也可考虑大量含有TiO2成分这样的比较廉价的高折射率成分代替这些昂贵的成分,来得到所期望的折射率等光学特性。 [0010] Also contemplated contain a large number of relatively inexpensive components such as high refractive index TiO2 component instead of these expensive components, to obtain the desired optical properties such as refractive index. 但是,大量含有这样的廉价的高折射率成分的玻璃多发生着色,不适于用于使可见光透过的透镜、棱镜等光学元件的用途。 However, high refractive index glass containing a large amount of such component inexpensive coloration occurred, is not suitable for use of the optical element is a lens, prism transmits visible light.

[0011] 本发明是鉴于上述问题点而完成的,其目的在于更廉价地得到不仅折射率(nd)及阿贝数(Vd)在所期望的范围内,而且适用于使可见光透过的光学元件的光学玻璃。 [0011] The present invention has been accomplished in view of such problems, and an object thereof is not only cheaper to obtain a refractive index (nd) and Abbe number (Vd) in the desired range, but also to the optical transmission of visible light an optical glass element.

[0012] 本发明人等为了解决上述问题,而重复进行了深入的试验研究,结果发现,通过相对于含有B2O3成分及La2O3成分的玻璃,含有10.0%以上的ZnO成分,从而不仅可利用较廉价的ZnO成分降低玻璃的材料成本,而且可维持所期望的折射率及阿贝数,并且可降低玻璃的着色,从而完成本发明。 [0012] The present inventors to solve the above problem, and made intensive experimental studies and found that, by relative to the glass containing B2O3 component and La2O3 component containing ZnO content 10.0% or more, so that not only can use cheaper reduce the cost of the ZnO component glass material, but also to maintain the desired refractive index and Abbe number, and may reduce the coloration of the glass, thereby completing the present invention. 具体而言,本发明提供如下方案。 Specifically, the present invention provides the following solutions.

[0013](I) 一种光学玻璃,相对于氧化物换算组成的玻璃总质量,以质量%计,含有5.0~40.0%的B2O3成分、10.0~40.0%的La2O3成分及10.0~40.0%的ZnO成分,具有 [0013] (I) an optical glass, in terms of oxide relative to the total mass of the glass composition, by mass%, comprising 5.0 to 40.0% of B2O3 component, 10.0 to 40.0% of La2O3 component and 10.0 to 40.0% of ZnO ingredients, with

1.75以上的折射率(nd),具有30以上40以下的阿贝数(vd)。 1.75 above the refractive index (nd), Abbe number of 30 or more having (vd) 40 or less.

[0014] (2)⑴所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,以质量%计, [0014] (2) ⑴ the optical glass with respect to the total mass of the glass composition in terms of oxides, by mass%,

[0015] Gd2O3 成分为O ~5.0 %,[0016] Y2O3 成分为O ~5.0%, [0015] Gd2O3 component O ~ 5.0%, [0016] Y2O3 component O ~ 5.0%,

[0017] Yb2O3 成分为O ~5.0%, [0017] Yb2O3 component O ~ 5.0%,

[0018] Lu2O3 成分为O ~5.0%, [0018] Lu2O3 component O ~ 5.0%,

[0019] Ta2O5 成分为O ~15.0%。 [0019] Ta2O5 component O ~ 15.0%.

[0020] (3) (I)或(2)所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,质量和(Gd203+Y203+Yb203+Lu203+Ta205)为15.0% 以下。 [0020] (3) (I) or (2) the optical glass with respect to the total mass of the glass composition in terms of oxides, and the quality (Gd203 + Y203 + Yb203 + Lu203 + Ta205) is 15.0% or less.

[0021] (4) (I)~(3)中任一项所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,Nb2O5成分的含量为20.0%以下。 [0021] (4) (I) ~ (3) The optical glass according to any one of the, relative to the total mass of the glass composition in terms of oxides, the content of Nb2O5 component is 20.0% or less.

[0022] (5)⑴~(4)中任一项所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,Ln2O3成分(式中,Ln为选自La、Gd、Y、Yb、Lu中的一种以上)的质量和为10.0 %以上40.0 %以下。 [0022] (5) ⑴ ~ (4) The optical glass according to any one of, in terms of oxide relative to the total mass of the glass composition, components of Ln2O3 (wherein, Ln is chosen from La, Gd, Y, Yb, one or more of Lu) of 10.0% by mass or more and 40.0% or less.

[0023] (6)(1)~(5)中任一项所述的光学玻璃,氧化物换算组成的质量比ZnO/(Ln203+Ta205+Nb205)为0.31 以上。 [0023] (6) (1) to (5) The optical glass according to any preceding claim, the composition in terms of oxide mass ratio of ZnO / (Ln203 + Ta205 + Nb205) is 0.31 or more.

[0024] (7) (I)~(6)中任一项所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,以质量%计, [0024] (7) (I) ~ (6) The optical glass according to any one of, in terms of oxide relative to the total mass of the glass composition, by mass%,

[0025] TiO2 成分为O ~20.0 %, [0025] TiO2 component O ~ 20.0%,

[0026] WO3 成分为O ~25.0 %。 [0026] WO3 component O ~ 25.0%.

[0027] (8)⑴~(J)中任一项所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,质量和(Ti02+Nb205+W03)为20.0% 以下。 [0027] (8) The optical glass according to any one of claims ⑴ ~ ​​(J), with respect to the total mass of the glass composition in terms of oxides, and the quality (Ti02 + Nb205 + W03) of 20.0% or less.

[0028] (9)(1)~⑶中任一项所述的光学玻璃,氧化物换算组成的质量比TiO2/(Ti02+Nb205+W03)为0.50 以下。 [0028] (9) (1) ~ ⑶ according to any one of the optical glass composition in terms of oxides by mass ratio TiO2 / (Ti02 + Nb205 + W03) is 0.50 or less.

[0029] (10) (I)~(9)中任一项所述的光学玻璃,氧化物换算组成的质量比(Ti02+Nb205+W03)/Ln2O3 为0.16 以上。 [0029] (10) (I) ~ (9) according to any one of the optical glass, the mass composition ratio in terms of oxide (Ti02 + Nb205 + W03) / Ln2O3 is 0.16 or more.

[0030] (11) (I)~(10)中任一项所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,SiO2成分的含量为15.0%以下。 [0030] (11) (I) ~ (10) according to any one of the optical glass with respect to the total mass of the glass composition in terms of oxides, the content of SiO2 component was 15.0% or less.

[0031] (12) (I)~(11)中任一项所述的光学玻璃,氧化物换算组成的质量比Si02/B203小于1.00。 [0031] (12) (I) ~ (11) according to any one of the optical glass composition in terms of oxides by mass ratio Si02 / B203 less than 1.00.

[0032] (13) (I)~(12)中任一项所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,Li2O成分的含量为5.0%以下。 [0032] (13) (I) ~ (12) according to any one of the optical glass with respect to the total mass of the glass composition in terms of oxides, the content of Li2O ingredient is 5.0% or less.

[0033] (14) (I)~(13)中任一项所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,以质量%计, [0033] (14) (I) ~ (13) The optical glass according to any one of, in terms of oxide relative to the total mass of the glass composition, by mass%,

[0034] MgO 成分为O ~10.0 %, [0034] MgO content of O ~ 10.0%,

[0035] CaO 成分为O ~10.0 %, [0035] CaO content of O ~ 10.0%,

[0036] SrO 成分为O ~10.0 %, [0036] SrO component O ~ 10.0%,

[0037] BaO 成分为O ~10.0%。 [0037] BaO component O ~ 10.0%.

[0038] (15) (I)~(14)中任一项所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,RO成分(式中,R为选自Mg、Ca、Sr、Ba中的一种以上)的质量和小于15.0 %。 [0038] (15) (I) ~ (14) according to any one of the optical glass, in terms of oxide relative to the total mass of the glass composition, the RO component (wherein, R is selected from Mg, Ca, Sr, one or more of Ba) and less than 15.0 mass%.

[0039] (16) (I)~(15)中任一项所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,以质量%计,[0040] Na2O 成分为O ~5.0 %, [0039] (16) (I) ~ (15) The optical glass according to any one of, in terms of oxide relative to the total mass of the glass composition, by mass%, [0040] Na2O content of O ~ 5.0%,

[0041] K2O 成分为O ~5.0%, [0041] K2O component O ~ 5.0%,

[0042] Cs2O 成分为O ~5.0 %。 [0042] Cs2O component O ~ 5.0%.

[0043] (17) (I)~(16)中任一项所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,Rn2O成分(式中,Rn为选自L1、Na、K、Cs中的一种以上)的质量和为10.0%以下。 [0043] (17) (I) ~ (16) according to any one of the optical glass, in terms of oxide relative to the total mass of the glass composition, Rn2O component (wherein, Rn is selected from L1, Na, K, one or more of the Cs) and 10.0 mass% or less.

[0044] (18) (I)~(17)中任一项所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,以质量%计, [0044] (18) (I) ~ (17) The optical glass according to any one of, in terms of oxide relative to the total mass of the glass composition, by mass%,

[0045] P2O5 成分为O ~10.0 %, [0045] P2O5 component O ~ 10.0%,

[0046] GeO2 成分为O ~10.0 %, [0046] GeO2 component O ~ 10.0%,

[0047] Bi2O3 成分为O ~10.0%, [0047] Bi2O3 component O ~ 10.0%,

[0048] ZrO2 成分为O ~15.0%, [0048] ZrO2 component O ~ 15.0%,

[0049] Al2O3 成分为O ~5.0 %, [0049] Al2O3 content of O ~ 5.0%,

[0050] Ga2O3 成分为O ~5.0%, [0050] Ga2O3 component O ~ 5.0%,

[0051] TeO2 成分为O ~15.0%, [0052] SnO2 成分为O ~1.0%, [0051] TeO2 component O ~ 15.0%, [0052] SnO2 component O ~ 1.0%,

[0053] Sb2O3 成分为O ~1.0%。 [0053] Sb2O3 component O ~ 1.0%.

[0054] (19) 一种光学元件,是由⑴~(18)中任一项所述的光学玻璃形成的。 [0054] (19) An optical element is formed from (18) The optical glass according to any one of claims ⑴ ~.

[0055] (20) 一种精密加压成型用预成型体,是由(I)~(18)中任一项所述的光学玻璃形成的。 [0055] (20) a precision press molding preform, by (I) ~ (18) The optical glass according to any formation.

[0056] (21) 一种光学元件,是将(20)所述的精密加压成型用预成型体精密加压成型而得到的。 [0056] (21) An optical element is (20) the precision press molding using a precision press molding preform is obtained.

[0057] (22) 一种玻璃成型体的制造方法,使(I)~(18)中任一项所述的光学玻璃软化,在模具内进行加压成型。 A method of manufacturing a glass molded body [0057] (22), so that (I) (18) The optical glass according to any one softening ~, pressure molding in a mold.

[0058] 通过本发明,可以更廉价地得到不仅折射率(nd)及阿贝数(vd)在所期望的范围内而且适用于使可见光透过的光学元件的光学玻璃。 [0058] By the present invention, the refractive index can be obtained more cheaply (nd) and Abbe number (VD) within a desired range but also for the optical element of the visible light transmitted through the optical glass not.

具体实施方式 detailed description

[0059] 本发明的光学玻璃中,相对于氧化物换算组成的玻璃总质量,以质量%计,含有 [0059] The optical glass of the present invention, relative to the total mass of the glass composition in terms of oxides, by mass%, comprising

5.0~40.0%的B2O3成分、10.0~40.0%的La2O3成分及10.0~40.0%的ZnO成分,具有1.75以上的折射率(nd),具有30以上40以下的阿贝数(vd)。 B2O3 5.0 to 40.0% of the composition, 10.0 to 40.0% of La2O3 component and 10.0 to 40.0% of ZnO component having a refractive index of 1.75 or greater (Nd), Abbe number of 30 or more having (vd) 40 or less. 通过相对于含有B2O3成分及La2O3成分的玻璃,含有10.0%以上的ZnO成分,由此,不仅可利用较廉价的ZnO成分降低玻璃的材料成本,而且可维持所期望的折射率及阿贝数,并且可减少玻璃的着色从而可提高可见光透过率。 Relative to the glass containing B2O3 by component and component La2O3, ZnO component containing 10.0% or more, whereby not only the use of relatively inexpensive cost of ZnO component glass material, but also to maintain the desired refractive index and Abbe number, colored glass and may reduce the visible light transmittance can be enhanced. 同时,通过以B2O3成分及La2O3成分为基础,从而变得容易得到不仅具有1.75以上的折射率(nd)及30以上的阿贝数(vd),而且着色更少、可见光透过率高的玻璃。 At the same time, by B2O3 and La2O3 content based component, so that it becomes easy to obtain not only having a refractive index of 1.75 or greater (nd) and Abbe number of 30 or more (VD), and less colored, high visible light transmittance glass . 因此,可更廉价地得到不仅折射率(rid)及阿贝数(vd)在所期望的范围内而且适用于使可见光透过的光学元件的光学玻璃。 Thus, not only can be obtained more inexpensively refractive index (RID) and Abbe number (VD) within a desired range but also to an optical glass of the optical element of the visible light transmission.

[0060] 以下,详细说明本发明的光学玻璃的实施方式。 [0060] Hereinafter, a detailed description of embodiments of the optical glass of the present invention. 本发明不受以下的实施方式的任何限定,可在本发明的目的范围内进行适当改变来实施。 The present invention is not limited to the following embodiments of any defined, may be appropriately modified within the scope of the object of the present invention is implemented. 需要说明的是,对于说明重复之处,有时适当省略说明,但不限定发明的主旨。 Incidentally, for the explanation of duplication, as may appropriately omitted, but the gist of the invention is not limited. [0061][玻璃成分] [0061] [glass component]

[0062] 构成本发明的光学玻璃的各成分的组成范围如下所述。 [0062] The composition range of respective components constituting the optical glass of the present invention is as follows. 在本说明书中,只要没有特别说明,各成分的含量均以相对于氧化物换算组成的玻璃总质量的质量%表示。 In the present specification, unless otherwise specified, contents of the components are in terms of oxides with respect to the total mass of the glass composition in%. 此处,“氧化物换算组成”是指如下组成:假设作为本发明的玻璃构成成分的原料使用的氧化物、复盐、金属氟化物等在熔融时全部分解而转化为氧化物,此时,将该生成氧化物的总质量作为100质量%,来表示玻璃中含有的各成分的组成。 Here, "in terms of oxide composition" refers to a composition as follows: Suppose an oxide glass as a raw material of the present invention, the constituent component used, complex salts, metal fluorides etc. in a molten and decomposed into oxides, at this time, the total mass of oxide formation as 100% by mass, expressed glass composition of each component contained.

[0063] <关于必需成分、任选成分> [0063] <Regarding essential ingredients, optional ingredients>

[0064] B2O3成分是玻璃形成成分,是本发明的光学玻璃所必需的成分。 [0064] B2O3 is a glass forming component composition, the optical glass of the present invention is a component necessary.

[0065] 尤其是,通过含有5.0%以上的B2O3成分,可促进形成稳定的玻璃,减少失透,并且可提高玻璃的热稳定性。 [0065] In particular, by B2O3 component containing more than 5.0%, the glass may promote the formation of a stable, reduced devitrification, and may improve the thermal stability of the glass. 因此,B2O3成分的含量的下限优选为5.0%、更优选为6.0%、进一步优选为7.0 %、进一步优选为9.0%。 Accordingly, the lower limit of the content of the B2O3 component is preferably 5.0%, more preferably 6.0%, further preferably 7.0%, more preferably 9.0%. 需要说明的是,B2O3成分的含量可以为15.0%以上,可以大于17.0%。 Incidentally, the content of B2O3 component can be 15.0% or more, may be greater than 17.0%.

[0066] 另一方面,通过使B2O3成分的含量为40.0%以下,可抑制玻璃的折射率的降低,并且可抑制化学耐久性的恶化。 [0066] On the other hand, by making the content of B2O3 component is 40.0% or less, the lower the refractive index of the glass can be suppressed, and deterioration of chemical durability can be suppressed. 因此,B2O3成分的含量的上限优选为40.0%、更优选为30.0 %、进一步优选为25.0%。 Accordingly, the upper limit of the content of the B2O3 component is preferably 40.0%, more preferably 30.0%, more preferably 25.0%.

[0067]关于 B2O3 成分,作为原料可使用H3B03、Na2B4O7, Na2B4O7.IOH2O, BPO4 等。 [0067] For the component B2O3 can be used H3B03, Na2B4O7, Na2B4O7.IOH2O, BPO4 like as the material.

[0068] La2O3成分是通过以10.0 %以上的量含有而提高玻璃的折射率及阿贝数的成分。 [0068] La2O3 is a component improving the refractive index and Abbe number of the glass and by an amount of 10.0% or more containing the component. 另外,是在稀土元素中比较廉价,有效抑制玻璃的材料成本的上升的成分。 Further, the rare earth elements is relatively inexpensive, effective to inhibit the increase in the material cost of the glass composition. 因此,La2O3成分是应当在本发明的光学玻璃中含有的成分。 Thus, La2O3 component should contain a component in the optical glass of the present invention. 因此,关于La2O3成分的含量,下限优选为 Thus, on the content of La2O3 component lower limit is preferably

10.0%、更优选为15.0%,进一步优选大于17.0%,下限进一步优选为20.0%,进一步优选大于25.0%。 10.0%, more preferably 15.0%, more preferably greater than 17.0%, the lower limit is more preferably 20.0%, more preferably greater than 25.0%.

[0069] 另一方面,通过使La2O3成分的含量为40.0%以下,可减少玻璃的失透。 [0069] On the other hand, by making the content of the component La2O3 40.0% or less, devitrification of the glass can be reduced. 因此,La2O3成分的含量的上限优选为40.0%、更优选为38.0%、进一步优选为36.0%。 Accordingly, the upper limit of the content of La2O3 component is preferably 40.0%, more preferably 38.0%, more preferably 36.0%.

[0070] 关于La2O3成分,作为原料可使用La203、La(N03)3.XH2O (X为任意的整数)等。 [0070] For La2O3 component, may be used La203, La (N03) 3.XH2O as a starting material (X is an arbitrary integer) and the like.

[0071] ZnO成分是在本发明的折射率及阿贝数的范围内即使以10.0%以上的量含有对折射率及阿贝数的影响也小的成分。 [0071] ZnO is a component component and the influence on the refractive index Abbe number even in an amount of 10.0% or more containing also a small refractive index in the range of the present invention and the Abbe number. 因此,本申请发明人等发现,通过以10.0%以上的量含有ZnO成分,不仅可维持所期望的折射率及阿贝数,而且可降低玻璃的材料成本,并且可减少玻璃的失透。 Accordingly, the present inventors have found application, by an amount of 10.0% or more of contained ZnO component, not only to maintain the desired refractive index and Abbe number, but also can reduce the cost of the glass material, and may reduce the devitrification of glass. 即,ZnO成分是本发明的光学玻璃应含有的成分。 That is, ZnO is a component of the optical glass composition according to the present invention which should be contained. 此外,ZnO成分是提高玻璃的熔融性还降低玻璃的制造成本的成分。 Further, ZnO is a component improving glass further reduce the manufacturing cost of the glass composition. 因此,ZnO成分的含量的下限优选为10.0%,更优选大于15.0%,下限进一步优选为16.5%,进一步优选大于20.0 %。 Accordingly, the lower limit of the content of the ZnO component is preferably 10.0%, more preferably greater than 15.0%, the lower limit is more preferably 16.5%, more preferably greater than 20.0%.

[0072] 另一方面,通过使ZnO成分的含量为40.0%以下,可抑制因ZnO成分的过量含有而导致的失透。 [0072] On the other hand, by making the content of ZnO component is 40.0% or less, can be suppressed due to excessive containing ZnO component caused devitrification. 另外,通过抑制熔融玻璃的粘性的降低,可减少玻璃中波筋的产生。 Further, by suppressing the lowering the viscosity of the molten glass, the glass can reduce wave ribs. 因此,ZnO成分的含量的上限优选为40.0%、更优选为35.0%、进一步优选为32.0%。 Accordingly, the upper limit of the content of the ZnO component is preferably 40.0%, more preferably 35.0%, more preferably 32.0%.

[0073] 关于ZnO成分,作为原料可使用ZnO、ZnF2等。 [0073] For the component ZnO, ZnO can be used as a raw material, ZnF2 like.

[0074] Gd2O3成分、Y2O3成分、Yb2O3及Lu2O3成分是以大于O %的量含有时提高玻璃的折射率及阿贝数、并且降低失透的任选成分。 Increasing the refractive index and Abbe number of the glass of the amount of the [0074] Gd2O3 component, Y2O3 component, the component of Yb2O3 and Lu2O3 is greater than O% containing reduced devitrification and optional ingredients.

[0075] 另一方面,通过使这些成分各自的含量为5.0%以下,可减少这些昂贵的成分的使用,因此可降低玻璃的材料成本。 [0075] On the other hand, by making the content of each of these components is 5.0% or less, these can reduce the use of expensive components, thus reducing the cost of the glass material. 另外,可抑制因这些成分的过量含有而导致的玻璃的阿贝数的超出必要的上升、失透。 Further, the Abbe number can be suppressed due to excessive containing these components caused the glass is increased more than necessary, devitrification. 因此,这些成分的各自的含量的上限优选为5.0%,更优选小于3.0%,进一步优选小于1.6%,进一步优选小于0.5%,进一步优选小于0.3%。 Accordingly, the upper limit of the content of each of these components is preferably 5.0%, more preferably less than 3.0%, more preferably less than 1.6%, more preferably less than 0.5%, more preferably less than 0.3%.

[0076] 关于Gd2O3成分、Y2O3成分、Yb2O3及Lu2O3成分,作为原料可使用Gd203、GdF3> Y2O3>YF3、Yb2O3> Lu2O3等在玻璃内含有。 [0076] For component Gd2O3, Y2O3 component of Yb2O3 and Lu2O3 components, may be used as a raw material Gd203, GdF3> Y2O3> YF3, Yb2O3> Lu2O3 the like contained in the glass.

[0077] Ta2O5成分是以大于0%的量含有时提高玻璃的折射率、并且降低失透的任选成分。 [0077] Ta2O5 is a component improving the refractive index is greater than the amount of the glass containing 0%, and reduced devitrification optional ingredients.

[0078] 另一方面,通过使Ta2O5成分的含量为15.0 %以下,可减少昂贵的Ta2O5成分的使用,因此可减少玻璃的材料成本。 [0078] On the other hand, by making the Ta2O5 component content of 15.0% or less, can reduce the use of expensive Ta2O5 component, thus reducing cost of the glass material. 另外,通过减少Ta2O5成分的使用,可使原料的熔化温度降低,可减少原料的熔化所需要的能量,因此也可降低光学玻璃的制造成本。 Further, by reducing the use of Ta2O5 component, can reduce the melting temperature of the material, can reduce the energy required to melt the raw material, and therefore can reduce the manufacturing cost of the optical glass. 因此,Ta2O5成分的含量的上限优选为15.0%、更优选为10.0%、进一步优选为5.0%,进一步优选小于 Accordingly, the upper limit of the content of Ta2O5 component is preferably 15.0%, more preferably 10.0%, more preferably 5.0%, more preferably less than

2.0 %、进一步优选小于1.0%。 2.0%, more preferably less than 1.0%.

[0079] 关于Ta2O5成分,作为原料可使用Ta2O5等在玻璃内含有。 [0079] For component Ta2O5, Ta2O5, etc. may be used as a raw material contained in the glass.

[0080] 本发明的光学玻璃中的Gd2O3成分、Y2O3成分、Yb2O3成分、Lu2O3成分及Ta2O5成分的总量优选为15.0%以下。 Gd2O3 glass optical component [0080] of the present invention, preferably the total amount of Y2O3 component, component of Yb2O3, Ta2O5 component of Lu2O3 component and 15.0% or less. 由此,不仅维持所期望的折射率及阿贝数,而且可减少这些昂贵的成分的使用,因此可降低玻璃的材料成本。 Thereby, not only to maintain the desired refractive index and Abbe number, but also can reduce the use of these expensive components, thus reducing the cost of the glass material. 因此,质量和(Gd203+Y203+Yb203+Lu203+Ta205)的上限优选为15.0 %,更优选小于7.0 %,进一步优选小于2.0 %。 Thus, the quality and (Gd203 + Y203 + Yb203 + Lu203 + Ta205) The upper limit is preferably 15.0%, more preferably less than 7.0%, more preferably less than 2.0%.

[0081] Nb2O5成分是以大于0%的量含有时提高玻璃的折射率,降低失透,并且可将阿贝数调整为低值的任选成分。 [0081] Nb2O5 is a component improving the amount of more than 0% of the refractive index of glass containing, reduced devitrification, and the Abbe number can be adjusted to a low value of the optional ingredients. 因此,Nb2O5成分的含量可以优选大于0%、更优选大于0.5%、进一步优选大于1.0%。 Accordingly, the content of Nb2O5 component may preferably be greater than 0%, more preferably greater than 0.5%, more preferably greater than 1.0%.

[0082] 另一方面,通过使Nb2O5成分的含量为20.0%以下,可减少昂贵的Nb2O5成分的使用,因此,可降低玻璃的材料成本。 [0082] On the other hand, by making the Nb2O5 component content of 20.0% or less, can reduce the use of expensive components Nb2O5, therefore, can reduce the cost of the glass material. 另外,可抑制玻璃制造时的熔化温度的上升,因此也可降低玻璃的制造成本。 Further, the rise can be suppressed during manufacturing of glass melting temperature, and therefore can reduce the manufacturing cost of the glass. 另外,可抑制因Nb2O5成分而导致的玻璃的可见光透过率的降低。 Further, the glass is suppressed due to Nb2O5 component caused by the decrease in visible light transmittance. 因此,Nb2O5成分的含量的上限优选为20.0%、更优选为15.0%、进一步优选为10.0%。 Accordingly, the upper limit of the content of Nb2O5 component is preferably 20.0%, more preferably 15.0%, more preferably 10.0%.

[0083] 关于Nb2O5成分,作为原料可使用Nb2O5等。 [0083] For components Nb2O5, Nb2O5 and the like may be used as the starting material.

[0084] 本发明的光学玻璃中的Ln2O3成分(式中,Ln为选自La、Gd、Y、Yb、Lu中的一种以上)的总量优选为10.0 %以上40.0 %以下。 Ln2O3 glass optical component [0084] of the present invention (wherein, Ln is one or more selected from La, Gd, Y, Yb, Lu in) the total amount is preferably 10.0% or 40.0% or less.

[0085] 尤其是,通过使该总量为10.0%以上,可提高玻璃的阿贝数。 [0085] In particular, by making the total amount of not less than 10.0%, the Abbe number of the glass can be improved. 因此,Ln2O3成分的总量(质量和)的下限优选为10.0 %、更优选为20.0 %、进一步优选为25.0%。 Accordingly, the lower limit of the total amount of component Ln2O3 (and mass) is preferably 10.0%, more preferably 20.0%, more preferably 25.0%.

[0086] 另一方面,通过使该总量为40.0%以下,不仅可降低玻璃的失透,而且可减少昂贵的稀土的使用,因此可降低玻璃的材料成本。 [0086] On the other hand, by making the total amount of 40.0% or less, not only can reduce the devitrification of the glass, but also reduce the use of expensive rare earth, thus reducing the cost of the glass material. 因此,Ln2O3成分的质量和的上限优选为40.0%、更优选为38.0%、进一步优选为35.0%。 Thus, the quality and composition of Ln2O3 the upper limit is preferably 40.0%, more preferably 38.0%, more preferably 35.0%.

[0087] 本发明的光学玻璃中,Ln2O3成分、Ta2O5成分及Nb2O5成分的总量相对于ZnO成分的含量的比率优选为0.31以上。 Optical Glass [0087] In the present invention, the total amount of components Ln2O3, Ta2O5 component and the Nb2O5 component relative to the content of the ZnO component ratio is preferably 0.31 or more. 由此,通过增加材料成本便宜,并且难以对折射率、阿贝数造成影响的成分即ZnO成分的含量,可减少具有所期望的折射率及阿贝数的玻璃的材料成本。 Thus, by increasing the inexpensive material cost, and it is difficult to affect the refractive index and Abbe number of components i.e., the content of ZnO component, material cost can be reduced with the desired refractive index and Abbe number of the glass. 因此,氧化物换算组成的质量比Zn0/(Ln203+Ta205+Nb205)的下限优选为0.31、更优选为 Therefore, the composition mass ratio in terms of oxide Zn0 / lower limit (Ln203 + Ta205 + Nb205) is preferably 0.31, more preferably

0.35、进一步优选为0.38。 0.35, further preferably 0.38.

[0088] 需要说明的是,对于该质量比的上限没有特别限定,但可以优选为2.00、更优选为 [0088] Incidentally, the upper limit for the mass ratio is not particularly limited, but may preferably be 2.00, more preferably

1.50、进一步优选为1.00。 1.50, more preferably 1.00.

[0089] TiO2成分是以大于0%的量含有时可提高玻璃的折射率,并且可将阿贝数调整为低值的任选成分。 [0089] TiO2 is a component improving the refractive index may be greater than the amount of the glass containing 0%, and the Abbe number can be adjusted to a low value of the optional ingredients. 因此,TiO2成分的含量可以优选大于0%、更优选大于0.5%、进一步优选大于1.0%。 Accordingly, the content of the TiO2 component is preferably be greater than 0%, more preferably greater than 0.5%, more preferably greater than 1.0%.

[0090] 另一方面,通过使TiO2成分的含量为20.0%以下,可抑制因TiO2成分形成晶核而导致的玻璃的失透,可抑制阿贝数的超出必要的降低,并且可减少因含有TiO2成分而导致的玻璃的着色,可提高可见光透过率。 [0090] On the other hand, by making the TiO2 component content of 20.0%, the TiO2 component is suppressed due to the formation of nuclei caused by the devitrification of glass, the Abbe number is suppressed is reduced more than necessary, and may reduce the contain colored glass component to cause the TiO2, the visible light transmittance can be improved. 因此,TiO2成分的含量的上限优选为20.0%、更优选为10.0 %、进一步优选为6.0 %、进一步优选为5.0 %、进一步优选为4.2%,进一步优选小于3.94%。 Accordingly, the upper limit of the content of the TiO2 component is preferably 20.0%, more preferably 10.0%, more preferably 6.0%, more preferably 5.0%, further preferably 4.2%, more preferably less than 3.94%.

[0091] 关于TiO2成分,作为原料可使用TiO2等在玻璃内含有。 [0091] For the component TiO2, TiO2, etc. may be used as a raw material contained in the glass.

[0092] WO3成分是以大于0%的量含有时不仅可减少因其他高折射率成分而导致的玻璃的着色而且可提高折射率、将阿贝数调整为低值、并且可降低玻璃的失透的任选成分。 Not only can reduce the amount of the [0092] WO3 is a component of more than 0% due to other high refractive index contains a coloring component to cause the glass but also improve the refractive index, the Abbe number was adjusted to a low value, and can reduce the loss of glass optional ingredients permeable. 因此,WO3成分的含量可以优选大于O %、更优选大于1.0 %、进一步优选大于2.0 %。 Accordingly, the content of WO3 component may preferably be greater than O% and more preferably greater than 1.0%, more preferably greater than 2.0%.

[0093] 另一方面,通过使WO3成分的含量为25.0 %以下,可减少因WO3成分而导致的玻璃的着色,可提高可见光透过率。 [0093] On the other hand, by making the WO3 component content of 25.0%, the glass may be reduced due to the coloring caused WO3 component, the visible light transmittance can be improved. 因此,WO3成分的含量的上限优选为25.0%、更优选为 Accordingly, the upper limit of the content of WO3 component is preferably 25.0%, more preferably

20.0 %、进一步优选为13.0%,进一步优选小于10.65%,进一步优选小于9.0%。 20.0%, more preferably 13.0%, more preferably less than 10.65%, more preferably less than 9.0%.

[0094] 关于WO3成分,作为原料可使用WO3等在玻璃内含有。 [0094] For WO3 component, WO3 and the like may be used as a raw material contained in the glass.

[0095] 本发明的光学玻璃中的TiO2成分、WO3成分及Nb2O5成分的总量优选为20.0%以下。 Optical Glass [0095] The present invention TiO2 component, the total amount of component preferably WO3 and Nb2O5 component is 20.0% or less. 由此,可抑制因这些成分的过量含有而导致的玻璃的可见光透过率的降低、失透。 Accordingly, the visible light transmittance is suppressed by reducing the excess containing these components caused the glass devitrification. 因此,质量和(Ti02+Nb205+W03)的上限优选为20.0%、更优选为17.5%、进一步优选为16.0%。 Thus, the quality and (Ti02 + Nb205 + W03) of the upper limit is preferably 20.0%, more preferably 17.5%, more preferably 16.0%.

[0096] 需要说明的是,质量和(Ti02+Nb205+W03)的下限可以为0%,但优选大于0%。 [0096] Incidentally, the quality, and (Ti02 + Nb205 + W03) of the lower limit may be 0%, but preferably more than 0%. 通过以质量和(Ti02+Nb205+W03)大于O %的量含有,从而即使为了降低玻璃的材料成本而降低Ta2O5成分、稀土的含量,也会由于能够提高玻璃的折射率及分散而变得可容易地确保40以下的阿贝数。 By mass and the amount of (Ti02 + Nb205 + W03) containing O% greater than, even if in order to reduce cost of the glass material Ta2O5 component is reduced, the rare earth content, and also it is possible to raise the refractive index dispersion of the glass becomes easily secure the Abbe number of 40 or less. 另外,由此可降低玻璃的失透。 Further, whereby devitrification of the glass can be reduced. 因此,质量和0102+他205+103)优选大于0%、更优选大于5.0 %、进一步优选大于10.0%。 Thus, he quality of and 0102+ 205 + 103) is preferably greater than 0%, more preferably greater than 5.0%, more preferably greater than 10.0%.

[0097] 本发明的光学玻璃中的TiO2成分的含量相对于TiO2成分、Nb2O5成分及WO3成分的总量的比率优选为0.50以下。 Content [0097] The optical glass of the present invention with respect to TiO2 component content ratio of the total amount of TiO2, Nb2O5 and WO3 component component is preferably 0.50 or less. 因此,即使含有使透过率恶化的TiO2成分,也可降低着色,提高可见光透过率。 Accordingly, even when the transmittance containing TiO2 component deterioration, coloration can also be reduced, to improve the visible light transmittance. 因此,氧化物换算组成的质量比Ti02/(Ti02+Nb205+W03)的上限优选为0.50、更优选为0.48、进一步优选为0.45。 Thus, the composition in terms of oxide mass ratio Ti02 / (Ti02 + Nb205 + W03) of the upper limit is preferably 0.50, more preferably 0.48, more preferably 0.45.

[0098] 本发明的光学玻璃中的TiO2成分、Nb2O5成分及WO3成分的总量相对于Ln2O3成分的含量的比率优选为0.16以上。 Optical Glass [0098] the present invention TiO2 component, the total amount of Nb2O5 and WO3 component ratio of the component with respect to the content of Ln2O3 component is preferably 0.16 or more. 由此,由于可使提高折射率的成分中的降低阿贝数的TiO2成分、Nb2O5成分及WO3成分的比率提高,因而可在提高玻璃的折射率的同时降低阿贝数。 Accordingly, since the TiO2 component can be increased by reducing the refractive index Abbe number of ingredients, component ratio of Nb2O5 and WO3 components is increased, thus reducing the Abbe number increase the refractive index of the glass. 因此,氧化物换算组成的质量比(Ti02+Nb205+W03)/Ln2O3的下限优选为0.16、更优选为0.20、进一步优选为0.25。 Thus, the composition in terms of oxides by mass than the lower limit is preferably (Ti02 + Nb205 + W03) / Ln2O3 to 0.16, more preferably 0.20, more preferably 0.25. 需要说明的是,对于该质量比的上限没有特别限定,但可以优选为2.00、更优选为1.50、进一步优选为1.00。 Incidentally, the upper limit for the mass ratio is not particularly limited, but may preferably be 2.00, more preferably 1.50, more preferably 1.00.

[0099] SiO2成分是以大于0%的量含有时可提高熔融玻璃的粘度、并且可降低玻璃的失透的任选成分。 [0099] SiO2 is a component to increase the viscosity of the molten glass can be an amount greater than 0% when containing an optional component and may reduce the devitrification of glass. 因此,SiO2成分的含量可以优选大于1.0%、更优选大于2.0%、进一步优选大于4.0 %。 Thus, SiO2 content of the component may preferably be greater than 1.0%, more preferably greater than 2.0%, more preferably greater than 4.0%. 尤其是,通过含有SiO2成分并且降低Li2O成分的含量,可提高玻璃的耐失透性。 In particular, by reducing the content of SiO2, Li2O component and component, can improve the devitrification resistance of the glass.

[0100] 另一方面,通过使SiO2成分的含量为15.0%以下,可抑制玻璃化转变温度的上升,并且可抑制折射率的降低。 [0100] On the other hand, by making the content of SiO2 component was 15.0% or less, the glass transition temperature rise can be suppressed, and the lower the refractive index can be suppressed. 因此,SiO2成分的含量的上限优选为15.0%、更优选为10.0%、进一步优选为8.0%。 Accordingly, the upper limit of the content of the SiO2 component is preferably 15.0%, more preferably 10.0%, more preferably 8.0%. [0101] 关于SiO2成分,作为原料可使用Si02、K2SiF6、Na2SiF6等在玻璃内含有。 [0101] On the SiO2 component, may be used as a raw material Si02, K2SiF6, Na2SiF6, etc. contained in the glass.

[0102] 本发明的光学玻璃中的SiO2成分的含量相对于B2O3成分的含量的比率优选小于1.00。 [0102] SiO2 content of the glass optical component according to the present invention with respect to the component ratio of B2O3 content is preferably less than 1.00. 因此,可降低因SiO2成分的过量含有而导致的玻璃的失透。 Accordingly, the glass may be reduced due to excessive containing SiO2 component caused devitrification. 因此,氧化物换算组成的质量比Si02/B203优选小于1.00,更优选小于0.90,进一步优选小于0.80。 Thus, the composition in terms of oxides by mass ratio is less than Si02 / B203 preferably 1.00, more preferably less than 0.90, more preferably less than 0.80. 需要说明的是,从通过含有3102成分而可降低玻璃的失透的观点考虑,该质量比Si02/B203的下限可以优选为0.05、更优选为0.10、进一步优选为0.20。 Incidentally, from the viewpoint of the glass can be reduced by containing the devitrification 3102, the mass ratio Si02 / B203 The lower limit may be preferably 0.05, more preferably 0.10, more preferably 0.20.

[0103] Li2O成分是以大于0%的量含有时可改善玻璃的熔融性,并且可降低将玻璃再加热时的失透的任选成分。 [0103] Li2O is a component of the molten glass can be improved when containing an amount of greater than 0%, and optionally can be reduced devitrification when the glass is reheated.

[0104] 另一方面,通过使Li2O成分的含量为5.0%以下,可使得难以降低玻璃的折射率,并且可降低因Li2O成分的过量含有而导致的玻璃的失透。 [0104] On the other hand, by making the Li2O component content of 5.0% or less, it can make it difficult to reduce the refractive index of glass, and may be reduced due to excessive containing Li2O component caused devitrification of the glass. 尤其是,对于含有Li2O成分的玻璃来说,折射率容易变低,阿贝数容易变高。 In particular, the glass comprising Li2O component, the refractive index tends to be low, the Abbe number tends to be high. 因此,在含有Li2O成分的玻璃中,为了提高折射率且降低阿贝数,多含有虽然具有提高玻璃化转变温度的性质但材料成本高的成分即以Nb2O5成分为代表的高折射率成分(提高折射率的成分)。 Accordingly, the glass containing Li2O component in order to increase the refractive index and Abbe number decreased, but the high cost of materials containing a plurality of components that is representative of the Nb2O5 component is a high refractive index components, while having a glass transition temperature of the improved properties (improved refractive index component). 本申请发明的光学玻璃中,为了减少这样的高折射率成分的含量,得到具有可耐受加压成型的玻璃化转变温度而且具有所期望的折射率及阿贝数的玻璃,优选降低Li2O成分的含量。 The optical glass of the present inventors, in order to reduce the content of such a high refractive index component to give a tolerable pressure molding glass transition temperature and has a desired refractive index and the Abbe number of the glass, Li2O component is preferably reduced content. 因此,Li2O成分的含量的上限优选为5.0%、更优选为3.0%、进一步优选为1.0%,进一步优选小于0.5%,进一步优选小于0.35%,进一步优选小于0.3%。 Accordingly, the upper limit of the content of the Li2O component is preferably 5.0%, more preferably 3.0%, further preferably 1.0%, more preferably less than 0.5%, more preferably less than 0.35%, more preferably less than 0.3%.

[0105] 关于Li2O成分,作为原料可使用Li2C03、LiN03、LiF等。 [0105] For Li2O component, may be used as a raw material Li2C03, LiN03, LiF and the like.

[0106] MgO成分、CaO成分、SrO成分及BaO成分是以大于0%的量含有时可调整玻璃的折射率,提高玻璃的熔融性,并且可降低失透的任选成分。 [0106] MgO component, CaO component, SrO and BaO components is adjustable component when the refractive index of glass containing an amount of greater than 0%, to improve the meltability of the glass, and may reduce the devitrification optional ingredients.

[0107] 另一方面,通过使这些成分各自的含量为10.0%以下,可抑制玻璃的折射率的超出必要的降低、失透。 [0107] On the other hand, these components by their content of 10.0% or less, the refractive index of the glass can be suppressed more than necessary decreases, devitrification. 因此,MgO成分、CaO成分、SrO成分及BaO成分的各自的含量的上限优选为10.0 %、更优选为7.5%,进一步优选小于3.5%,进一步优选小于3.0%。 Accordingly, the upper limit of the content of each of MgO component, CaO component, SrO, and BaO component component is preferably 10.0%, more preferably 7.5%, more preferably less than 3.5%, more preferably less than 3.0%.

[0108] 关于MgO成分、CaO成分、SrO成分及BaO成分,作为原料可使用MgCO3、MgF2、CaCO3、CaF2、Sr (NO3) 2、SrF2、BaCO3、Ba (NO3) 2、BaF2 等。 [0108] For the component MgO, CaO component, SrO, and BaO component composition, may be used as a raw material MgCO3, MgF2, CaCO3, CaF2, Sr (NO3) 2, SrF2, BaCO3, Ba (NO3) 2, BaF2 and so on.

[0109] 本发明的光学玻璃中,RO成分(式中,R为选自Mg、Ca、Sr、Ba中的一种以上)的总量优选小于15.0%。 [0109] The optical glass of the present invention, RO component (wherein, R is selected from Mg, Ca, Sr, and Ba one or more) the total amount of preferably less than 15.0%. 由此,可抑制因过量含有RO成分而导致的玻璃的折射率的降低、液相温度的上升。 Thereby, decrease, increase the liquidus temperature of the refractive index can be suppressed by excessive RO containing component to cause the glass. 因此,RO成分的总量(质量和)优选小于15.0%、更优选小于10.0%、进一步优选小于7.0 %。 Thus, the total amount of the RO components (and mass) is preferably less than 15.0%, more preferably less than 10.0%, more preferably less than 7.0%.

[0110] Na2O成分、K2O成分及Cs2O成分是以大于O %的量含有时可改善玻璃的熔融性,并且可降低将玻璃再加热时的失透的任选成分。 [0110] Na2O component, K2O and Cs2O ingredients are ingredients can improve the meltability of the glass is greater than the amount of O% contained, and may decrease the glass devitrification when reheated optional ingredients.

[0111] 另一方面,通过使这些成分的各自的含量为5.0%以下,可使得难以降低玻璃的折射率,并且可降低因过量含有这些成分而导致的失透。 [0111] On the other hand, by making the content of each of these components is 5.0% or less may make it difficult to reduce the refractive index of the glass, and may be reduced due to excessive containing these components lead to devitrification. 因此,Na2O成分、K2O成分及Cs2O成分的各自的含量的上限优选为5.0%、更优选为3.0%、进一步优选为1.0%。 Accordingly, the upper limit of the Na2O component, K2O component and a Cs2O content of each component is preferably 5.0%, more preferably 3.0%, further preferably 1.0%.

[0112]关于Na2O成分、K2O成分及Cs2O成分,作为原料可使用NaN03、NaF, Na2SiF6, K2CO3>KNO3> KF、KHF2, K2SiF6, Cs2C03、CsNO3 等。 [0112] For the composition Na2O, K2O and Cs2O component composition, may be used as the starting material NaN03, NaF, Na2SiF6, K2CO3> KNO3> KF, KHF2, K2SiF6, Cs2C03, CsNO3 like.

[0113] 本发明的光学玻璃中,Rn2O成分(式中,Rn为选自L1、Na、K及Cs中的I种以上)的总量优选为10.0%以下。 Optical Glass [0113] In the present invention, Rn2O component (wherein, Rn is selected from the above L1, Na, K and Cs in Type I) the total amount of preferably 10.0% or less. 由此,可使得难以降低玻璃的折射率,并且可降低因过量含有Rn2O成分而导致的失透。 Thereby, it may make it difficult to reduce the refractive index of the glass, and may be reduced due to excessive content of Rn2O component to cause devitrification. 因此,Rn2O成分的总量(质量和)的上限优选为10.0%、更优选为5.0 %、进一步优选为3.0%。 Accordingly, the upper limit of the total amount of Rn2O component (and mass) is preferably 10.0%, more preferably 5.0%, further preferably 3.0%.

[0114] P2O5成分是以大于0%的量含有时可降低玻璃的液相温度,降低失透的任选成分。 [0114] P2O5 is a component may reduce the liquidus temperature of the glass when an amount of greater than 0% containing reduced devitrification optional ingredients.

[0115] 另一方面,通过使P2O5成分的含量为10.0%以下,可抑制玻璃的化学耐久性、尤其是耐水性的降低。 [0115] On the other hand, by making the P2O5 component content of 10.0%, the chemical durability of the glass is suppressed, in particular to reduce water resistance. 因此,P2O5成分的含量的上限优选为10.0%、更优选为5.0%、进一步优选为3.0%。 Accordingly, the upper limit of the content of the P2O5 component is preferably 10.0%, more preferably 5.0%, further preferably 3.0%.

[0116]关于 P2O5 成分,作为原料可使用Al (PO3) 3、Ca (PO3) 2、Ba (PO3) 2、BPO4、H3PO4 等。 [0116] For P2O5 component, may be used as a raw material Al (PO3) 3, Ca (PO3) 2, Ba (PO3) 2, BPO4, H3PO4 and the like.

[0117] GeO2成分是以大于0%的量含有时可提高玻璃的折射率,降低玻璃的液相温度的任选成分。 [0117] GeO2 is a component improving the refractive index may be greater than the amount of the glass containing 0%, lower the liquidus temperature of the glass of the optional ingredients.

[0118] 另一方面,通过减少昂贵的GeO2成分,可提高下述效果:可降低本发明中的玻璃的材料成本的效果。 [0118] On the other hand, by reducing costly GeO2 component, can improve the following effects: the effect of reducing the material cost of the glass in the present invention. 因此,GeO2成分的含量的上限优选为10.0%以下、更优选为5.0%、进一步优选为1.0%。 Accordingly, the upper limit of the content of the GeO2 component is preferably 10.0% or less, more preferably 5.0%, further preferably 1.0%. [0119] 关于GeO2成分,作为原料可使用GeO2等。 [0119] For GeO2 component, may be used as a raw material GeO2 and the like.

[0120] Bi2O3成分是以大于0%的量含有时可提高折射率,并且可降低玻璃化转变温度的任选成分。 [0120] Bi2O3 is a component improving the refractive index may be greater than 0% of the amount contained, and may lower the glass transition temperature of the optional ingredients.

[0121] 另一方面,通过使Bi2O3成分的含量为10.0%以下,可降低玻璃的失透且减少玻璃的着色,从而可提高玻璃的可见光透过率。 [0121] On the other hand, by making the content of the component of Bi2O3 10.0%, devitrification of the glass can be reduced and the reduced colored glass, which can improve the visible light transmittance of the glass. 因此,Bi2O3成分的含量的上限优选为10.0%、更优选为5.0 %、进一步优选为3.0%。 Accordingly, the upper limit of the content of Bi2O3 component is preferably 10.0%, more preferably 5.0%, further preferably 3.0%.

[0122] 关于Bi2O3成分,作为原料可使用Bi2O3等。 [0122] For Bi2O3 component, may be used as a raw material Bi2O3 and the like.

[0123] ZrO2成分是以大于0%的量含有时可以有助于玻璃的高折射率及低分散,并且可降低玻璃的失透的任选成分。 May contribute to a high refractive index and low-dispersion glass in the amount of the [0123] ZrO2 is a component containing more than 0%, and may reduce the devitrification optional ingredients. 因此,ZrO2成分的含量可以优选大于0%,下限可以更优选为 Accordingly, the content of the ZrO2 component is preferably be greater than 0%, more preferably lower limit may be

0.1 %、进一步优选为0.5%、进一步优选为1.0%。 0.1%, more preferably 0.5%, more preferably 1.0%.

[0124] 另一方面,通过使ZrO2成分的含量为15.0%以下,可通过抑制玻璃制造时的熔化温度的上升而抑制玻璃的制造成本的上升。 [0124] On the other hand, by making the ZrO2 component content of 15.0% or less, increase in manufacturing cost can be suppressed by the rising of the melting temperature of the glass is suppressed during glass manufacturing. 因此,ZrO2成分的含量的上限优选为15.0%、更优选为10.0 %、进一步优选为5.0%。 Accordingly, the upper limit of the content of the ZrO2 component is preferably 15.0%, more preferably 10.0%, more preferably 5.0%.

[0125] 关于ZrO2成分,作为原料可使用ZrO2、ZrF4等。 [0125] For the ZrO2 component may be used as a raw material ZrO2, ZrF4 like.

[0126] Al2O3成分及Ga2O3成分是以大于O %的量含有时可提高玻璃的化学耐久性,并且可降低玻璃熔融时的失透的任选成分。 [0126] Al2O3 and Ga2O3 component ingredients are optional ingredients devitrification during the chemical durability of the glass can be improved when containing an amount greater than O%, and may decrease the glass melting.

[0127] 另一方面,通过使Al2O3成分及Ga2O3成分的各自的含量为5.0%以下,可降低因过量含有这些成分而导致的玻璃的失透。 [0127] On the other hand, by Al2O3 and Ga2O3 component content of each component is 5.0% or less, can be reduced because of excessive devitrification containing these components caused the glass. 另外,通过减少昂贵的Ga2O3成分,可降低玻璃的材料成本。 Further, by reducing costly Ga2O3 components can reduce the cost of the glass material. 因此,对于Al2O3成分及Ga2O3成分的各自的含量来说,上限优选为5.0 %,更优选小于3.0%,上限进一步优选为1.0%。 Thus, for the respective component contents of Al2O3 and Ga2O3 component, the upper limit is preferably 5.0%, more preferably less than 3.0%, more preferably the upper limit is 1.0%.

[0128]关于 Al2O3 成分及Ga2O3 成分,作为原料可使用A1203、A1 (OH) 3、AlF3、Ga203、Ga (OH)3 [0128] About Al2O3 and Ga2O3 component composition, may be used as a raw material A1203, A1 (OH) 3, AlF3, Ga203, Ga (OH) 3

坐寸ο Sit inch ο

[0129] TeO2成分是以大于0%的量含有时可提高玻璃的折射率,并且可降低玻璃化转变温度的任选成分。 [0129] TeO2 is a component improving the refractive index may be greater than the amount of the glass containing 0%, and can lower the glass transition temperature of the optional ingredients.

[0130] 另一方面,通过使TeO2成分的含量为15.0 %以下,可减少TeO2成分与熔化设备(尤其是Pt等贵金属)的合金化,因而可谋求熔化设备的长寿命化。 [0130] On the other hand, by making the content of the component TeO2 15.0% or less, and can reduce the melting apparatus TeO2 component (in particular noble metal such as Pt) is alloyed, which can be prolonged life of the melting apparatus. 另外,通过减少昂贵的TeO2成分,可降低玻璃的材料成本。 Further, by reducing TeO2 expensive component, it can reduce the cost of the glass material. 因此,对于TeO2成分的含量来说,上限优选为15.0%,更优选小于11.9%,进一步优选小于7.0 %。 Accordingly, the content of TeO2 ingredient, the upper limit is preferably 15.0%, more preferably less than 11.9%, more preferably less than 7.0%. [0131] 关于TeO2成分,作为原料可使用TeO2等。 [0131] For TeO2 component, TeO2 may be used as a raw material and the like.

[0132] SnO2成分是以大于0%的量含有时可使熔融玻璃澄清,并且可提高玻璃的可见光透过率的任选成分。 [0132] SnO2 is a component of the molten glass is refined, and optional ingredients can be improved when the visible light transmittance glass containing an amount of greater than 0%.

[0133] 另一方面,通过使SnO2成分的含量为1.0%以下,可使得难以发生因熔融玻璃的还原而导致的玻璃的着色、玻璃的失透。 [0133] On the other hand, by making the SnO2 component content of 1.0% or less, so that the colored glass can be due to reduction of the resulting molten glass is difficult to occur, and devitrification of the glass. 另外,可减少SnO2成分与熔化设备(尤其是Pt等贵金属)的合金化,因此可谋求熔化设备的长寿命化。 Further, SnO2 can reduce the component and melting apparatus (especially a noble metal such as Pt) is alloyed, it can be prolonged life of the melting apparatus. 因此,SnO2成分的含量的上限优选为 Accordingly, the upper limit of the content of the SnO2 component is preferably

1.0%、更优选为0.5%、进一步优选为0.3%。 1.0%, and more preferably 0.5%, more preferably 0.3%.

[0134] 关于SnO2成分,作为原料可使用SnO、SnO2> SnF2> SnF4等。 [0134] About SnO2 component include SnO, SnO2> SnF2> SnF4 the like as a raw material.

[0135] CeO2成分是以大于0%的量含有时可使熔融玻璃澄清化的任选成分。 [0135] CeO2 is a component of the molten glass greater than 0% of the amount of optional ingredients contained clarified.

[0136] 另一方面,通过使CeO2成分的含量为1.0%以下,可抑制因着色而导致的可见光透过率的降低。 [0136] On the other hand, by making the CeO2 component content of 1.0% or less, the visible light transmittance is reduced due to coloration caused suppressed. 因此,CeO2成分的含有率的上限优选为1.0%、更优选为0.5%、进一步优选为 Accordingly, the upper limit of the content of the CeO2 component is preferably 1.0%, more preferably 0.5%, more preferably

0.3%。 0.3%.

[0137] 关于CeO2成分,作为原料可使用&02、(^(0!1)3等。 [0137] For CeO2 component 02 may be used as the starting material &, (^ (0! 1) 3 and the like.

[0138] Sb2O3成分是以大于0%的量含有时可提高玻璃的可见光透过率,并且可在将玻璃熔融时进行脱泡的任选成分。 [0138] Sb2O3 is a component of an amount greater than 0% visible light transmittance can be improved when the glass-containing composition and may be optionally degassing the molten glass in the.

[0139] 另一方面,通过使Sb2O3成分的含量为1.0%以下,可抑制玻璃熔融时的过度的发泡。 [0139] On the other hand, by making the Sb2O3 component content of 1.0% or less, excessive foaming during the glass melting can be suppressed. 另外,由于难以进行Sb2O3成分与熔化设备(尤其是Pt等贵金属)的合金化,可谋求熔化设备的长寿命化。 Further, since it is difficult for the Sb2O3 component and melting apparatus (especially a noble metal such as Pt) alloy, the melting can be prolonged life of the device. 另外,若Sb2O3成分的含量过多,则玻璃的可见光透过率反而降低。 Further, if the content of Sb2O3 component is too large, the visible light transmittance of the glass but lower. 因此,对于Sb2O3成分的含量来说,上限优选为1.0%、更优选为0.5%,进一步优选小于0.1 %。 Accordingly, the content of Sb2O3 component, the upper limit is preferably 1.0%, more preferably 0.5%, more preferably less than 0.1%.

[0140]关于 Sb2O3 成分,作为原料可使用Sb203、Sb2O5, Na2H2Sb2O7.5H20 等。 [0140] For Sb2O3 component may be used as a raw material Sb203, Sb2O5, Na2H2Sb2O7.5H20 like.

[0141] 需要说明的是,使玻璃澄清、脱泡的成分不限于上述的Sb2O3成分,可使用玻璃制造领域中公知的澄清剂、脱泡剂或它们的组合。 [0141] Note that the glass fining, defoaming component is not limited to the above-mentioned Sb2O3 ingredients may be used in the manufacture of glass well-known in the art fining agents, defoaming agents, or combinations thereof.

[0142] <关于不应含有的成分> [0142] <should not contain a component on>

[0143] 接下来,说明本发明的光学玻璃不应含有的成分及含有时不理想的成分。 [0143] Next, the components of the optical glass of the present invention and should not contain undesirable containing component.

[0144] 根据需要,可以在不损害本申请发明的玻璃的特性的范围内添加其他成分。 [0144] According to need, other components may be added within the range not impairing the characteristics of the glass according to the present application invention. 但关于除T1、Zr、Nb、W、La、Gd、Y、Yb、Lu 之外的V、Cr、Mn、Fe、Co、N1、Cu、Ag 及Mo 等各过渡金属成分,具有即使单独或复合含有少量各成分时,玻璃也会着色,在可见光范围的特定的波长处发生吸收的性质,因此,尤其是在使用可见光区域的波长的光学玻璃中,优选实质上不含有上述成分。 However, in addition to on V T1, Zr, Nb, W, La, Gd, Y, Yb, Lu, and each transition metal component Cr, Mn, Fe, Co, N1, Cu, Ag and Mo or the like, alone or with even when the composite contains a small amount of each component, the glass will be colored, the nature of absorption occurs in the visible range at a specific wavelength, and therefore, particularly in the optical glass of the wavelength in the visible light region, preferably substantially free of such ingredients.

[0145] 进而,关于PbO等铅化合物、及Th、Cd、Tl、Os、Be、Se各成分,近年作为有害的化学物质有控制其使用的倾向,不只是在玻璃的制造工序,而且直至加工工序、及制品化后的处理中需要环境对策上的处置。 [0145] Further, with respect to PbO and other lead compounds, and the ingredients Th, Cd, Tl, Os, Be, Se, in recent years, as the harmful chemicals that controls a tendency to use not only a manufacturing process of the glass, and until the processing environmental measures on the disposal treatment processes, and products of need. 因此,在重视环境方面的影响的情况下,除了不可避免地混入以外,优选实质上不含有上述成分。 Thus, in the case where the importance of environmental impact, in addition to inevitably mixed, preferably substantially containing the above components. 由此,成为光学玻璃中实质上不含有污染环境的物质。 Thus, a substance which does not substantially contain optical glass pollute the environment. 因此,即使不进行特别的环境对策上的处置,也可制造、加工及废弃该光学玻璃。 Therefore, without special disposal on the environmental measures, it can also be produced, waste processing and the optical glass.

[0146] 本发明中的各成分的含量的范围以相对于氧化物换算组成的玻璃总质量的质量%表示,因此,并不直接以摩尔%的记载表示,但满足本发明中要求的各特性的玻璃组合物中存在的各成分的基于摩尔%表示的组成以氧化物换算组成计通常取以下的值。 [0146] range of the content of each component in the present invention with respect to the total mass of the glass composition in terms of oxides, expressed in%, thus, is not directly expressed in mol% is described, but the present invention satisfies various properties required based on the composition represented by mol% in terms of oxides of the glass composition of each component is present in the composition of usually takes the following values.

[0147] B2O3 成分为5.0 ~70.0 摩尔%, [0147] B2O3 component is 5.0 to 70.0 mol%,

[0148] La2O3成分为3.0~20.0摩尔%,及[0149] ZnO 成分为15.0 ~60.0 摩尔%, [0148] La2O3 content of 3.0 to 20.0 mol%, and [0149] ZnO content of 15.0 to 60.0 mol%,

[0150]以及, [0150] and,

[0151] Gd2O3成分为O~3.0摩尔%, [0151] Gd2O3 component O ~ 3.0 mol%,

[0152] Y2O3成分为O~5.0摩尔%, [0152] Y2O3 component O ~ 5.0 mol%,

[0153] Yb2O3成分为O~3.0摩尔%, [0153] Yb2O3 component O ~ 3.0 mol%,

[0154] Lu2O3成分为O~3.0摩尔%, [0154] Lu2O3 component O ~ 3.0 mol%,

[0155] Ta2O5成分为O~7.0摩尔%, [0155] Ta2O5 component O ~ 7.0 mol%,

[0156] Nb2O5成分为O~20.0摩尔%, [0156] Nb2O5 component O ~ 20.0 mol%,

[0157] TiO2成分为O~40.0摩尔%, [0157] TiO2 component O ~ 40.0 mol%,

[0158] TO3成分为O~25.0摩尔%, [0158] TO3 component O ~ 25.0 mol%,

[0159] SiO2成分为O~30.0摩尔%, [0159] SiO2 content of O ~ 30.0 mol%,

[0160] Li2O成分为O~30.0摩尔%, [0160] Li2O component O ~ 30.0 mol%,

[0161] MgO成分为O~50.0摩尔%, [0161] MgO content of O ~ 50.0 mol%,

[0162] CaO成分为O~40.0摩尔%, [0162] CaO content of O ~ 40.0 mol%,

[0163] SrO成分为O~30.0摩尔%, [0163] SrO component O ~ 30.0 mol%,

[0164] BaO成分为O~35.0摩尔%, [0164] BaO component O ~ 35.0 mol%,

[0165] Na2O成分为O~25.0摩尔%, [0165] Na2O content of O ~ 25.0 mol%,

[0166] K2O成分为O~20.0摩尔%, [0166] K2O component O ~ 20.0 mol%,

[0167] Cs2O成分为O~10.0摩尔%, [0167] Cs2O component O ~ 10.0 mol%,

[0168] P2O5成分为O~15.0摩尔%, [0168] P2O5 component O ~ 15.0 mol%,

[0169] GeO2成分为O~10.0摩尔%, [0169] GeO2 component O ~ 10.0 mol%,

[0170] Bi2O3成分为O~5.0摩尔%, [0170] Bi2O3 component O ~ 5.0 mol%,

[0171] ZrO2成分为O~18.0摩尔%, [0171] ZrO2 component O ~ 18.0 mol%,

[0172] Al2O3成分为O~15.0摩尔%, [0172] Al2O3 content of O ~ 15.0 mol%,

[0173] Ga2O3成分为O~5.0摩尔%, [0173] Ga2O3 component O ~ 5.0 mol%,

[0174] TeO2成分为O~25.0摩尔%, [0174] TeO2 component O ~ 25.0 mol%,

[0175] SnO2成分为O~0.3摩尔%,或 [0175] SnO2 component O ~ 0.3 mol%, or

[0176] Sb2O3成分为O~1.0摩尔%。 [0176] Sb2O3 component O ~ 1.0 mol%.

[0177][制造方法] [0177] [Manufacturing Method]

[0178] 本发明的光学玻璃例如按照以下的方式制作。 [0178] The optical glass of the present invention, for example, formed in the following manner. 即,按照使各成分在规定的含量的范围内的方式均匀混合上述原料,将制成的混合物投入到钼坩埚中,根据玻璃组成的熔融难易度,在电炉中在1200~1400°C的温度范围内进行3~4小时熔融,并搅拌均质化,然后降低至适当的温度,然后浇铸至模具中,缓慢冷却,由此制作。 That is, according to the ingredients within the scope of the content of the raw material is uniformly mixed, the mixture is made into a molybdenum crucible in accordance with the difficulty level of molten glass, in an electric furnace at 1200 ~ 1400 ° C in for 3 to 4 hours within a temperature range of melting, homogenizing and stirring, and then lowered to an appropriate temperature, and then cast into a mold and slowly cooled to prepare.

[0179][物性] [0179] [Physical properties]

[0180] 本发明的光学玻璃优选具有高折射率及高阿贝数(低分散)。 The optical glass is preferably [0180] the present invention has a high refractive index and high Abbe number (low dispersion). 尤其是,本发明的光学玻璃的折射率(nd)的下限优选为1.75、更优选为1.78、进一步优选为1.80。 In particular, the lower limit of the refractive index of the optical glass of the present invention (nd) is preferably 1.75, more preferably 1.78, more preferably 1.80. 该折射率的上限可以优选为2.20、更优选为2.10、进一步优选为2.00。 The upper limit of the refractive index may preferably be 2.20, more preferably 2.10, further preferably 2.00. 另外,本发明的光学玻璃的阿贝数(vd)的下限优选为30、更优选为32、进一步优选为35,上限优选为40、更优选为39.8、进一步优选为39.5。 Further, the lower limit of the Abbe number of the optical glass of the present invention (VD) is preferably 30, more preferably 32, more preferably 35, the upper limit is preferably 40, more preferably 39.8, more preferably 39.5. [0181] 通过具有这样的高折射率,从而即使谋求光学元件的薄型化也可得到大的光折射量。 [0181] By having such a high refractive index, so that even when the thickness reduction of the optical element can be obtained a large amount of light refraction. 另外,通过具有这样的低分散,从而即使为单透镜也可减小光的波长不同导致的焦点偏差(色差)。 Further, by having such a low dispersion, so that even if the wavelength of the single optical lens may be reduced due to the different focal deviation (color). 而且,通过具有这样的低分散,从而例如在与具有高分散(低阿贝数)的光学元件组合时,可谋求高的成像特性等。 Further, by having such a low dispersion, for example, when the optical element so that in combination with high dispersion (low Abbe number) and may seek high imaging characteristics.

[0182] 因此,本发明的光学玻璃在光学设计上有用,不仅可实现特别高的成像特性等,而且可实现光学系统的小型化,可扩展光学设计的自由度。 [0182] Thus, the optical glass of the present invention is useful in the optical design, not only can achieve a particularly high imaging characteristics and the like, but also to achieve downsizing of the optical system, the degree of freedom in optical design can be extended.

[0183] 本发明的光学玻璃优选可见光透过率、尤其是可见光中短波长侧的光的透过率高,从而着色少。 [0183] The optical glass of the present invention, preferably the visible light transmittance, particularly short wavelength side of visible light of high transmittance, so that less colored. 尤其是,在本发明的光学玻璃的厚IOmm的样品中显示5%的光谱透射率的最短波长(λ5)的上限可以优选为400nm、更优选为380nm、进一步优选为360nm。 In particular, it is shown in thick samples IOmm optical glass of the present invention, the upper limit of 5% of the shortest wavelength of the spectral transmittance (lambda] 5) may preferably 400nm, more preferably 380nm, more preferably 360nm. 另外,在本发明的光学玻璃的厚IOmm的样品中显示80%的光谱透射率的最短波长(λ J的上限可以优选为500nm、更优选为490nm、进一步优选为480nm。由此,玻璃的吸收端位于可见光区之外,可提高相对于更宽的可见光区域的波长的光的玻璃的透明性,可将该光学玻璃合适地用于透镜等使可见光透过的光学元件。 Further, the display of 80% of the shortest wavelength in the spectral transmittance of the optical glass IOmm thick samples according to the present invention (λ J upper limit may be preferably 500 nm, more preferably 490 nm, and further preferably 480nm. Thereby, the absorption of the glass end is located outside the visible light region, can improve the transparency of the glass with respect to light having a wavelength in the visible region wider, the optical glass can be suitably used for optical elements such as lenses transmits visible light.

[0184][预成型体及光学元件] [0184] [a preform and an optical element]

[0185] 可使用例如再热加压成型、精密加压成型等模压成型的方法,从制成的光学玻璃制作玻璃成型体。 [0185] The method may be used reheat press molding, press molding precision press molding, for example, prepared from the optical glass molded body made of glass. 即,可利用下述方法来制作玻璃成型体:对由光学玻璃形成的料块、玻璃块进行磨削及研磨来得到光学元件的形状的方法;将对由光学玻璃形成的料块、玻璃块进行再加热而将其成型(再热加压成型)而得到的玻璃成型体进行磨削及研磨的方法;以及利用超精密加工成的模具将切断料块、玻璃块并进行研磨而得到的预成型体材料、或利用公知的浮法成型等而成型得到的预成型体材料成型(精密加压成型)而得到光学元件的形状的方法。 That is, the following method can be used to prepare a glass molded body: on the gob, the glass block is formed of optical glass are ground and polished to a method for obtaining shape of the optical element; gob will be formed of optical glass, a glass block the reheating the molding (reheat press molding) the glass molded body obtained by grinding and polishing method; and the use of ultra-precision machining to cut the mold material block, and ground glass piece obtained by pre molding material, using a known float or like molding obtained by molding a preform molding material (precision press molding) method of obtaining the shape of the optical element. 需要说明的是,制作玻璃成型体的方法不限于上述方法。 Incidentally, the method for producing a glass molded body is not limited to the above method.

[0186] 如上所述制作的玻璃成型体对于多种光学元件及光学设计有用。 [0186] prepared as described above is useful for a variety of glass molding of optical elements and optical design. 尤其是,优选使用精密加压成型等方法由本发明的光学玻璃制作透镜、棱镜、镜子等光学元件。 In particular, the optical glass is preferably produced lenses, prisms, mirrors and other optical elements of the present invention is the use of precision press molding or the like. 由此,当使用照相机、投影仪等这样的使光学元件中透过可见光的光学设备时,不仅可实现高精细且高精度的成像特性等,而且可谋求这些光学设备中的光学系统的小型化。 Accordingly, when the optical element using such a camera, a projector or the like through the optical device when visible light, the imaging properties can be achieved not only high definition and high precision, and the like, and may seek an optical system in an optical device such miniaturization .

[0187][实施例] [0187] [Example]

[0188] 本发明的实施例(N0.1~N0.72)及比较例(N0.A)的组成、以及这些玻璃的折射率(nd)、阿贝数(vd)、以及光谱透射率显示5%及80%的波长(入5及λ8。)的结果示于表I~表10。 Composition [0188] Example (N0.1 ~ N0.72) of the present invention and Comparative Example (N0.A), and the refractive index of the glass (Nd), Abbe number (VD), and a spectral transmittance of the display results 5% and 80% of the wavelength (the 5 and λ8.) are shown in table 10. table I ~. 需要说明的是,以下的实施例仅为例示目的,并不仅限于这些实施例。 Incidentally, the following examples are merely illustrative purposes, and not limited to these embodiments.

[0189] 这些实施例及比较例的玻璃均按照如下方式制作:选择作为各成分的原料分别相当的氧化物、氢氧化物、碳酸盐、硝酸盐、氟化物、氢氧化物、偏磷酸化合物等通常的光学玻璃中使用的高纯度原料,以表1~表10中所示的各实施例及比较例的组成的比例进行称量并均匀混合,然后投入到钼坩埚中,根据玻璃组成的熔融难易度,使用电炉在1100~1500°c的温度范围内进行2~5小时熔融,然后搅拌均质化,进行除泡等,然后浇铸至模具中,缓慢冷却,由此制成玻璃。 [0189] These Examples and Comparative Examples glass were prepared as follows: selecting as a raw material of each component, respectively, corresponding oxides, hydroxides, carbonates, nitrates, fluorides, hydroxides, metaphosphoric acid compound and other high purity optical glass materials are generally used in table 1 - Comparative Examples and tables of the embodiments shown in the ratio of 10 were weighed and uniformly mixed, then put into a molybdenum crucible, according to the glass composition difficulty melted using an electric furnace to melt for 2 to 5 hours in a 1100 ~ 1500 ° c temperature range, and then homogenized with stirring, and the like for defoaming, and then cast into a mold and gradually cooled, whereby a glass.

[0190]此处,实施例及比较例的玻璃的折射率及阿贝数基于日本光学硝子工业会标准J0GIS01 - 2003测定。 [0190] Here, the refractive index of the glass of Examples and Comparative Examples and the Abbe number based on the Japan Optical Glass Industry Association Standard J0GIS01 - Determination 2003. 需要说明的是,作为本测定中使用的玻璃,使用以缓慢冷却降低速度为一25°C /hr的退火条件,在缓慢冷却炉中进行了处理的玻璃。 Incidentally, the glass used in this measurement, used to reduce the speed of a slow cooling 25 ° C / hr and annealing conditions, the glass was processed in the slow cooling furnace.

[0191] 另外,实施例及比较例的玻璃的可见光透过率基于日本光学硝子工业会标准J0GIS02测定。 [0191] Further, the visible light transmittance of the glass of the Examples and Comparative Examples was measured based on the embodiment of the Japan Optical Glass Industry Association Standard J0GIS02. 需要说明的是,本发明中,通过测定玻璃的透过率,求出玻璃着色的有无及程度。 Incidentally, in the present invention, by measuring the transmittance of the glass obtained in the presence and the degree of coloration of the glass. 具体而言,基于JISZ8722,对于厚10±0.1mm的对置平行研磨品,测定200~800nm的光谱透射率,求出入5(透过率5%时的波长)及入8。 Specifically, based on JISZ8722, for a thickness of the opposing parallel abrasive article 10 ± 0.1mm measured spectral transmittance of 200 ~ 800nm, find out 5 (wavelength at which the transmittance of 5%) and the 8. (透过率80%时的波长)。 (Wavelength at a transmittance of 80%).

[0192][表1] [0192] [Table 1]

[0193] [0193]

Figure CN103958427AD00151

[0194][表 2] [0194] [Table 2]

[0195] [0195]

Figure CN103958427AD00161
Figure CN103958427AD00171

[0198] [表4] [0198] [Table 4]

[0199] [0199]

Figure CN103958427AD00181
Figure CN103958427AD00191

[0202][表 6] [0202] [Table 6]

[0203] [0203]

Figure CN103958427AD00201

[0204][表 7] [0204] [Table 7]

[0205] [0205]

Figure CN103958427AD00211
Figure CN103958427AD00221
Figure CN103958427AD00231

[0210][表10] [0210] [Table 10]

Figure CN103958427AD00241

[0212] 本发明的实施例的光学玻璃的λ8(ι(透过率80%时的波长)均为500nm以下,更详细地说,为450nm以下。另外,本发明的实施例的光学玻璃的λ 5(透过率5%时的波长)均为400nm以下,更详细地说,为350nm以下。由此可知,本发明的实施例的光学玻璃,着色少,可见光透过率高。 [0212] The optical glass of the embodiment of the present invention λ8 (ι (wavelength at a transmittance of 80%) are 500nm or less, more particularly, of 450nm or less. Further, the optical glass of an embodiment of the present invention. λ 5 (5% transmission wavelength) are 400nm or less, more particularly, of 350nm or less. this indicates that the optical glass of the embodiment of the present invention, less colored, high visible light transmittance.

[0213] 另外,本发明的实施例的光学玻璃的折射率(nd)均为1.75以上,更详细地说,为1.80以上,在所期望的范围内。 [0213] Further, the refractive index of the optical glass of the present invention, an embodiment (nd) of 1.75 or greater are, more particularly, 1.80 or more, within a desired range.

[0214] 另外,本发明的实施例的光学玻璃的阿贝数(Vd)均为30以上,更详细地说,为35以上,并且,该阿贝数(vd)为40以下,更详细地说,为39以下,在所期望的范围内。 [0214] Further, Abbe number of the optical glass of an embodiment of the present invention (Vd) is 30 or more, more particularly, 35 or more, and the Abbe number (VD) is 40 or less, more detail say, 39 or less, within the desired range.

[0215] 另外,本发明的实施例的光学玻璃与比较例(N0.A)的玻璃相比,Ta2O5成分的含量少,并且ZnO成分的含量多,因此可降低材料成本。 [0215] Further, a glass optical glass and Comparative Examples of the present invention (N0.A) as compared with a low content of Ta2O5 component and the content of ZnO component is large, thus reducing the material cost.

[0216] 由此可知,本发明的实施例的光学玻璃不仅折射率(nd)及阿贝数(vd)在所期望的范围内,而且可廉价地制作,并且着色少,可见光透过率高。 [0216] The optical glass can be seen, the embodiment of the present invention, not only the refractive index (nd) and Abbe number (VD) within a desired range, and can be manufactured at low cost, and less colored, high visible light transmittance . 因此推测,本发明的实施例的光学玻璃可合适地用于使可见光透过的用途。 It is presumed, the optical glass of the embodiment of the present invention may suitably be for purposes of transmitting visible light.

[0217] 进而,使用本发明的实施例的光学玻璃,在进行再热加压成型后,进行磨削及研磨,加工成透镜及棱镜的形状。 [0217] Further, embodiments of the present invention using the optical glass, and then performing the thermal pressure molding, is ground and polished into the shape of lenses and prisms. 另外,使用本发明的实施例的光学玻璃,形成精密加压成型用预成型体,将精密加压成型用预成型体精密加压成型加工成透镜及棱镜的形状。 Further, embodiments of the present invention using the optical glass, which forms a precision press molding preform, a precision press molding preform for precision press molding into the shape of lenses and prisms. 在所有情况下均未产生下述问题:与成型模具的熔粘问题,以及加热软化后的玻璃中产生乳白化及失透等问题;可稳定地加工成各种透镜及棱镜的形状。 In all cases did not occur the following problems: generating white and devitrification problems and other problems fusible mold and softened by heating the glass; stably into the shape of various lenses and prisms. [0218] 以上,出于例示目的详细地说明了本发明,但本实施例仅为例示目的,应当理解,在不超出本发明的思想及范围的情况下,本领域技术人员可进行多种改变。 [0218] or more, for illustrative purposes the present invention is described in detail, but the present embodiments are only illustrative purposes, it should be understood that without departing from the spirit and scope of the present invention, those skilled in the art that various changes may be .

Claims (22)

  1. 1.一种光学玻璃,相对于氧化物换算组成的玻璃总质量,以质量%计,含有5.0~40.0%的B2O3成分、10.0~40.0%的La2O3成分及10.0~40.0%的ZnO成分,具有1.75以上的折射率nd,具有30以上40以下的阿贝数vd。 An optical glass with respect to the total mass of the glass composition in terms of oxides, in mass%, comprising 5.0 to 40.0% of B2O3 component, 10.0 to 40.0% of La2O3 component and 10.0 to 40.0% of ZnO component having 1.75 than the refractive index of nd, having 30 or more 40 or less the Abbe number vd.
  2. 2.如权利要求1所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,以质量%计, Gd2O3成分为O~5.0%, Y2O3成分为O~5.0%, Yb2O3成分为O~5.0%, Lu2O3成分为O~5.0%, Ta2O5成分为O~15.0%。 2. The optical glass according to claim 1, relative to the total mass of the glass composition in terms of oxides, by mass%, Gd2O3 component O ~ 5.0%, Y2O3 component O ~ 5.0%, Yb2O3 component O ~ 5.0 %, Lu2O3 component O ~ 5.0%, Ta2O5 component O ~ 15.0%.
  3. 3.如权利要求1或2所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,质量和Gd203+Y203+Yb203+Lu203+Ta205 为15.0% 以下。 3. The optical glass of claim 1 or claim 2, relative to the total mass of the glass composition in terms of oxides, and the quality of Gd203 + Y203 + Yb203 + Lu203 + Ta205 15.0% or less.
  4. 4.如权利要求1~3中任一项所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,Nb2O5成分的含量为20.0%以下。 The optical glass according to any one of claims 1 to 3 as claimed in claim, relative to the total mass of the glass composition in terms of oxides, the content of Nb2O5 component is 20.0% or less.
  5. 5.如权利要求1~4中任一项所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,Ln2O3成分的质量和为10.0%以上40.0%以下,Ln2O3式中,Ln为选自La、Gd、Y、Yb、Lu中的一种以上。 5. The optical glass according to any one of claims 1 to 4, wherein, with respect to the total mass of the glass composition in terms of oxides, and the quality of Ln2O3 ingredient 40.0% to 10.0% or less, wherein Ln2O3, Ln is selected from the la, Gd, Y, Yb, Lu more than one.
  6. 6.如权利要求1~5中任一项所述的光学玻璃,氧化物换算组成的质量比ZnO/(Ln203+Ta205+Nb205)为0.31 以上。 6. The optical glass according to any one of claims 1 to 5, in terms of oxides by mass composition ratio of ZnO / (Ln203 + Ta205 + Nb205) is 0.31 or more.
  7. 7.如权利要求1~6中任一项所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,以质量%计, TiO2成分为O~20.0%, WO3成分为O~25.0%。 7. The optical glass according to any one of claims 1 to 6, relative to the total mass of the glass composition in terms of oxides, by mass%, - TiO2 component O ~ 20.0%, WO3 component O ~ 25.0%.
  8. 8.如权利要求1~7中任一项所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,质量和Ti02+Nb205+W03 为20.0% 以下。 8. The optical glass according to any one of claims 1 to 7, wherein, relative to the total mass of the glass composition in terms of oxides, and the quality of Ti02 + Nb205 + W03 20.0% or less.
  9. 9.如权利要求1~8中任一项所述的光学玻璃,氧化物换算组成的质量比TiO2/(Ti02+Nb205+W03)为0.50 以下。 9. The optical glass as claimed in any one of claims 1 to 8, wherein said oxide composition in terms of mass ratio of TiO2 / (Ti02 + Nb205 + W03) is 0.50 or less.
  10. 10.如权利要求1~9中任一项所述的光学玻璃,氧化物换算组成的质量比(Ti02+Nb205+W03)/Ln2O3 为0.16 以上。 10. The optical glass as claimed in any one of claims 1 to 9, said, in terms of composition mass ratio of the oxide (Ti02 + Nb205 + W03) / Ln2O3 is 0.16 or more.
  11. 11.如权利要求1~10中任一项所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,SiO2成分的含量为15.0%以下。 11. The optical glass as claimed in any one of claims 1 to 10, said, in terms of oxide relative to the total mass of the glass composition, the content of SiO2 component was 15.0% or less.
  12. 12.如权利要求1~11中任一项所述的光学玻璃,氧化物换算组成的质量比Si02/B203小于1.00。 12. The optical glass as claimed in claim any one of claims 1 to 11, in terms of an oxide is less than 1.00 mass composition ratio of Si02 / B203.
  13. 13.如权利要求1~12中任一项所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,Li2O成分的含量为5.0%以下。 13. The optical glass according to any one of claims 1 to 12, with respect to the total mass of the glass composition in terms of oxides, the content of Li2O ingredient is 5.0% or less.
  14. 14.如权利要求1~13中任一项所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,以质量%计, MgO成分为O~10.0%, CaO成分为O~10.0%, SrO成分为O~10.0%,BaO成分为O~10.0%。 1 to 14. The optical glass according to any one of 13 claims, in terms of oxide relative to the total mass of the glass composition, in mass%, MgO content of O ~ 10.0%, CaO content is O ~ 10.0%, SrO component O ~ 10.0%, BaO content of O ~ 10.0%.
  15. 15.如权利要求1~14中任一项所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,RO成分的质量和小于15.0%,RO式中,R为选自Mg、Ca、Sr、Ba中的一种以上。 1 to 15. The optical glass according to any one of 14 claims, with respect to the total mass of the glass composition in terms of oxides, and the quality of the RO component is less than 15.0%, RO formula, R is selected from Mg, Ca, Sr, Ba is one or more.
  16. 16.如权利要求1~15中任一项所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,以质量%计, Na2O成分为O~5.0%, K2O成分为O~5.0%, Cs2O成分为O~5.0%。 1 to 16. The optical glass according to any one of 15 claims, in terms of oxide relative to the total mass of the glass composition, in mass%, Na2O content of O ~ 5.0%, K2O content of O ~ 5.0%, Cs2O component O ~ 5.0%.
  17. 17.如权利要求1~16中任一项所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,Rn2O成分的质量和为10.0%以下,Rn2O式中,Rn为选自L1、Na、K、Cs中的一种以上。 17. The optical glass according to any of claims 1 to 16, said, in terms of oxide relative to the total mass of the glass composition, mass Rn2O component and 10.0% or less, Rn2O formula, Rn is selected from L1, Na , K, Cs of one or more.
  18. 18.如权利要求1~17中任一项所述的光学玻璃,相对于氧化物换算组成的玻璃总质量,以质量%计, P2O5成分为O~1 .0%, GeO2成分为O~10.0%, Bi2O3成分为O~10.0%, ZrO2成分为O~15.0%, Al2O3成分为O~5.0%, Ga2O3成分为O~5.0%, TeO2成分为O~15.0%, SnO2成分为O~1.0%, Sb2O3成分为O~1.0%。 18. The optical glass according to any one of claims 1 to 17, in terms of oxide relative to the total mass of the glass composition, in mass%, P2O5 component is O ~ 1 .0%, GeO2 component O ~ 10.0 %, Bi2O3 component O ~ 10.0%, ZrO2 component O ~ 15.0%, Al2O3 content of O ~ 5.0%, Ga2O3 component O ~ 5.0%, TeO2 component O ~ 15.0%, SnO2 component O ~ 1.0%, Sb2O3 component O ~ 1.0%.
  19. 19.一种光学元件,是由权利要求1~18中任一项所述的光学玻璃形成的。 19. An optical element, by the optical glass as claimed in any one of claims 1 to 18 is formed.
  20. 20.一种精密加压成型用预成型体,是由权利要求1~18中任一项所述的光学玻璃形成的。 20. A precision press molding preform, an optical glass is as claimed in any one of claims 1 to 18 is formed.
  21. 21.一种光学元件,是将权利要求20所述的精密加压成型用预成型体精密加压成型而得到的。 21. An optical element is a precision press molding according to claim 20 with a precision press molding preform is obtained.
  22. 22.—种玻璃成型体的制造方法,使权利要求1~18中任一项所述的光学玻璃软化,在模具内进行加压成型。 22.- method of manufacturing a glass molded body, so that the softening of the optical glass as claimed in claim any one of claims 1 to 18, press-molded in a mold.
CN 201280059731 2011-12-07 2012-11-19 Optical glass, preform, and optical element CN103958427A (en)

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PCT/JP2012/079950 WO2013084706A1 (en) 2011-12-07 2012-11-19 Optical glass, preform, and optical element

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