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    • 92. 发明申请
    • OPTICAL GLASS, PREFORM FOR PRECISION PRESS-MOLDING, OPTICAL ELEMENT, METHODS FOR MANUFACTURING THEREOF, AND IMAGING DEVICE
    • 光学玻璃,用于精密压模的光学元件,其制造方法和成像装置
    • US20100255979A1
    • 2010-10-07
    • US12599405
    • 2009-05-28
    • Yasuhiro Fujiwara
    • Yasuhiro Fujiwara
    • C03C3/155C03B23/00C03C3/15C03C3/068
    • C03C3/155C03B11/00C03C3/068C03C3/15
    • An optical Glass characterized by comprising, denoted as molar percentages: B2O35 to 45 percent; Li2O0 to 3 percent; ZnO10 to 40 percent; La2O35 to 30 percent; Gd2O30 to 20 percent; and at least one from among TiO2, Nb2O5, WO3, and Bi2O3; in that the total content X of Ti, Nb, W, and Bi, denoted as a cation percentage, is 3 to 35 percent; in that the Abbé number v(nu)d and refractive index nd fall within the range delimited by sequentially connecting with straight lines points A, B, C, D and A in FIG. 1; and in that the glass transition temperature Tg satisfies relation (1) below: Tg[° C.]≦655° C.−5×X  (1). An optical Glass characterized by comprising, denoted as molar percentages: B2O55 to 45 percent; SiO20 to 6 percent (excluding 6 percent); Li2O, Na2O, K2O in total0 to 3 percent; ZnO10 to 40 percent; La2O35 to 30 percent; Gd2O30 to 20 percent; and ZrO2, TaO2, TiO2, Nb2O5,12.5 to 20 percent; WO3, and Bi2O3 in total in that the cation ratio of the Ti4+ content relative to the total content of Zr4+, Ta5+, Ti4+, Nb5+, W6+, and Bi3+ is 0.30 or lower; in that the temperature Tp at which a viscosity of 107.2 dPa·s is exhibited is 706° C. or lower; and in that the refractive index nd and the Abbé number v(nu)d satisfy all of relations (I) to (IV) below. 34.0≦vd
    • 一种光学玻璃,其特征在于包括:摩尔百分比:B2O3 5〜45% Li2O 0〜3% ZnO为10〜40% La2O3 5〜30% Gd2O3 0〜20% 和TiO 2,Nb 2 O 5,WO 3和Bi 2 O 3中的至少一种; 因为以阳离子百分比表示的Ti,Nb,W和Bi的总含量X为3〜35%。 因为Abbé数v(nu)d和折射率nd落在通过依次连接图1中的直线点A,B,C,D和A所界定的范围内。 1; 并且玻璃化转变温度Tg满足以下关系式(1):Tg [℃]&lt; 111; 655℃-5×X(1)。 一种光学玻璃,其特征在于包括:摩尔百分比:B2O5 5〜45%; SiO2 0〜6%(不含6%); Li2O,Na2O,K2O总计为0〜3%; ZnO为10〜40% La2O3 5〜30% Gd2O3 0〜20% 和ZrO2,TaO2,TiO2,Nb2O5,12.5〜20%; WO 3和Bi 2 O 3的含量相对于Zr4 +,Ta5 +,Ti4 +,Nb5 +,W6 +和Bi3 +的总含量的Ti 4+的阳离子比为0.30以下; 由于表现出粘度为107.2dPa·s的温度Tp为706℃以下, 并且折射率nd和Abbé数v(nu)d满足以下所有关系(I)至(IV)。 34.0&nlE; vd <40(I)nd≥1.87(II)nd≥2.23-0.01×vd(III)nd&nlE; 2.28-0.01×vd(IV)
    • 93. 发明授权
    • Optical glass and lens
    • 光学玻璃和镜片
    • US07514381B2
    • 2009-04-07
    • US11616179
    • 2006-12-26
    • Syuji MatsumotoJun SasaiNaoki Sugimoto
    • Syuji MatsumotoJun SasaiNaoki Sugimoto
    • C03C3/15C03C3/155C03C3/14C03C3/12
    • C03C3/15C03C3/253
    • To provide an optical glass which has a high transmittance and a high refractive index and shows little decrease in the transmitted light intensity when continuously irradiated with a blue-violet laser diode light, and which is less prone to a higher melting temperature and exhibits chemical durability being not low. An optical glass consisting essentially of, as represented by mol %, from 35 to 54% of TeO2, from 0 to 10% of GeO2, from 5 to 30% of B2O3, from 0 to 15% of Ga2O3, from 0 to 8% of Bi2O3, from 3 to 20% of ZnO, from 0 to 10% of MgO+CaO+SrO+BaO, from 1 to 10% of Y2O3+La2O3+Gd2O3, from 0 to 5% of Ta2O5+Nb2O5, from 0 to 1.8% of TiO2, and from 0 to 6% of Li2O+Na2O+K2O+Rb2O+Cs2O. A lens made of such an optical glass.
    • 为了提供一种具有高透射率和高折射率的光学玻璃,当连续照射蓝紫色激光二极管灯时,透射光强度几乎没有降低,并且不太容易产生较高的熔融温度并具有化学耐久性 不低 基本上由摩尔%表示的TeO 3为35至54%,0至10%的GeO 2,5至30%的B 2 O 3,0至15%的Ga 2 O 3,0至8% 的Bi 2 O 3,3〜20%的ZnO,0〜10%的MgO + CaO + SrO + BaO,1〜10%的Y2O3 + La2O3 + Gd2O3,0〜5%的Ta2O5 + Nb2O5,0〜 1.8%的TiO2和0〜6%的Li2O + Na2O + K2O + Rb2O + Cs2O。 由这种光学玻璃制成的镜片。
    • 94. 发明授权
    • Optical glass, precision press-molding preform, process for producing the preform, optical element and process for producing the optical element
    • 光学玻璃,精密压制成型预成型件,用于制造预成型件的工艺,光学元件以及用于制造光学元件的工艺
    • US07491667B2
    • 2009-02-17
    • US11081832
    • 2005-03-17
    • Kazutaka Hayashi
    • Kazutaka Hayashi
    • C03C3/15C03C3/14C03C3/066
    • C03B11/122C03C3/068C03C3/155
    • Provided are optical glasses having a refractive index (nd) of over 1.82 but not more than 1.86 and an Abbe's number (νd) of 30 to 39.5 and having the property of low-temperature softening that permits precision press-molding, one is an optical glass comprising B2O3, La2O5, Gd2O3 and ZnO as essential components, comprising Li2O and SiO2 as optional components, provided that the content of SiO2 is less than 2% by weight when Li2O is contained, having a refractive index (nd) of over 1.82 but not more than 1.86 and an Abbe's number (νd) of 30 to 39.5 and having a glass transition temperature (Tg) of 630° C. or lower, and the other is an optical glass comprising, by % by weight, 14 to 30% of B2O3, 10 to 40% of La2O3, 1 to 30% of Gd2O3 and 6 to 26% of ZnO as essential components, and comprising, as optional components, predetermined amounts of WO3, Ta2O5, Nb2O5, TiO2, SiO2, Li2O, Na2O, K2O, MgO, CaO, SrO, BaO, Y2O3, Yb2O3, ZrO2, Bi2O3 and Sb2O3 and having a refractive index (nd) of over 1.82 but not more than 1.86, an Abbe's number (νd) of 30 to 39.5 and a glass transition temperature (Tg) of 630° C. or lower.
    • 提供折射率(nd)超过1.82但不大于1.86的阿拉伯数(neud)为30-39.5的光学玻璃,具有允许精密加压成型的低温软化性质的光学玻璃,一种是光学 包含B 2 O 3,La 2 O 5,Gd 2 O 3和ZnO作为必要组分的玻璃,其包含Li 2 O和SiO 2作为任选组分,条件是当含有Li 2 O时SiO 2的含量小于2重量%,折射率(nd)大于1.82但是 不高于1.86,阿贝数(nud)为30〜39.5,玻璃化转变温度(Tg)为630℃以下,另外是包含按重量%计为14〜30%的光学玻璃, 的B 2 O 3,10〜40%的La 2 O 3,1〜30%的Gd 2 O 3和6〜26%的ZnO作为必要成分,并且包含作为任选的组分的预定量的WO 3,Ta 2 O 5,Nb 2 O 5,TiO 2,SiO 2,Li 2 O, ,K2O,MgO,CaO,SrO,BaO,Y2O3,Yb2O3,ZrO2,Bi2O3和Sb2O3,折射率(nd)超过 1.82但不大于1.86,阿贝数(nud)为30〜39.5,玻璃化转变温度(Tg)为630℃以下。
    • 96. 发明申请
    • Optical glass, press-molding glass gob and optical element
    • 光学玻璃,压模玻璃料滴和光学元件
    • US20070015651A1
    • 2007-01-18
    • US11483179
    • 2006-07-10
    • Michio Endo
    • Michio Endo
    • C03C3/15C03C3/04C03C3/095C03B5/26C03B17/00
    • C03B11/08C03B17/04C03B19/02C03B40/02C03B2215/61C03C3/068Y02P40/57
    • An optical glass having a remarkably high refractive index and excellent stability can be give without being based on PbO, and the optical glass contains, as essential components, at least one oxide selected from La2O3, Gd2O3, Y2O3, Yb2O3, TiO2, Nb2O5 or WO3, at least one oxide selected from MgO, CaO, SrO or BaO and B2O3 and optionally containing SiO2, wherein on the basis of mass, the total content of B2O3 and SiO2 is from 1 to 25%, the ratio of (B2O3+SiO2)/(La2O3+Gd2O3+Y2O3+Yb2O3+TiO2+Nb2O5+WO3) is from 0.05 to 0.3 and the ratio of (MgO+CaO+SrO+BaO)/(La2O3+Gd2O3+Y2O3+Yb2O3+TiO2+Nb2O5+WO3) is from 0.1 to 0.4, the optical glass having a refractive index (nd) of 2.000 or more and an Abbe's number (vd) of 27 or less.
    • 可以在不基于PbO的情况下得到具有显着高折射率和极好稳定性的光学玻璃,并且光学玻璃含有选自La 2 O 3的至少一种氧化物作为必要成分, 3,Y 2,O 3,Y 2,O 3,Y 2, 3,3,3,3,3,3,3,3,3, >,选自MgO,CaO,SrO或BaO和B 2 O 3 3中的至少一种氧化物,并且任选地含有SiO 2,其中在 质量基准,B 2 O 3 3和SiO 2 2的总含量为1至25%,(B 2 3 3 + SiO 2)/(La 2 O 3 + Gd 2 3 3 + Y 2 O 3 3 + Yb 2 O 3&lt; 3&gt; / 2 + 2 + 2 + N 2 + 5 + 3 + 3 3)为0.05〜0.3,并且 (MgO + CaO + SrO + BaO)/(La 2 O 3 3 + Gd 2 O 3)3的比例 + Y 2 O 3 SUB + + Yb 2 O 3 + 2 + 2 + N 2 O 2 5 N 2 O 3 + + WO 3 3)为0.1〜0.4,光学玻璃的折射率(nd)为2.000以上,阿贝数(vd)为27以下。
    • 98. 发明申请
    • Optical glass, precision press-molding preform, process for the production of the preform, optical element and process for the production of the optical element
    • 光学玻璃,精密压制成型预成型件,用于生产预制件的工艺,光学元件和用于生产光学元件的工艺
    • US20060079389A1
    • 2006-04-13
    • US11246952
    • 2005-10-11
    • Kazutaka Hayashi
    • Kazutaka Hayashi
    • C03C3/15C03C3/068
    • C03C3/068C03C3/155C03C3/253
    • Provided is an optical glass for precision press-molding is free from degradations in product quality caused by a surface altered layer such as fogging, browning, etc., and a precision press-molding preform and an optical element provided are formed of the above glass. The optical glass is a glass which contains B2O3, La2O3 and ZnO and is used as a glass material for precision press-molding, and contains, by mol %, 20 to 60% of B2O3, 0 to 20% of SiO2, 22 to 42% of ZnO, 5 to 24% of La2O3, 0 to 20% of Gd2O3, provided that the total content of La2O3 and Gd2O3 is 10 to 24%, 0 to 10% of ZrO2, 0 to 10% of Ta2O5, 0 to 10% of WO3, 0 to 10% of Nb2O5, 0 to 10% of TiO2, 0 to 10% of Bi2O3, 0 to 10% of GeO2, 0 to 10% of Ga2O3, 0 to 10% of Al2O3, 0 to 10% of BaO, 0 to 10% of Y2O3 and 0 to 10% of Yb2O3, has an Abbe's number (νd) of 40 or more and is substantially free of lithium.
    • 提供了一种用于精密加压成型的光学玻璃,不会由于诸如起雾,褐变等的表面改变层引起的产品质量下降,并且由上述玻璃形成精密的压制成型预制件和设置的光学元件 。 光学玻璃是含有B 2 O 3 O 3,La 2 O 3 N 3和ZnO的玻璃,并被使用 作为精密加压成型用的玻璃材料,以摩尔%计,含有20〜60%的B 2 O 3 O 3,0〜20%的SiO 2, 2%,22〜42%的ZnO,5〜24%的La 2 O 3 3,0〜20%的Gd 2 O 3 > O 3 3 ,条件是La 2 O 3 3和Gd 2 O 3的总含量 为10〜24%,0〜10%的ZrO 2,0〜10%的Ta 2 O 5,0 至10%,0〜10%的Nb 3 O 5,0〜10%的TiO 2 / 0〜10%的Bi 2 O 3,0〜10%的GeO 2,0〜10%的Ga 2 3,0〜10%的Al 2 O 3 3,0〜10%的BaO,0〜10 Y 2 O 3 3的比例和Yb 2 O 3 3的0至10%具有阿贝数( nud)为40以上,并且基本上不含锂。