公开(公告)号：US07745361B2

公开(公告)日：2010-06-29

申请号：US11723468

申请日：2007-03-20

申请人： Yoshiko Kasuga ,  Yasuhiro Fujiwara ,  Xuelu Zou

发明人： Yoshiko Kasuga ,  Yasuhiro Fujiwara ,  Xuelu Zou

IPC分类号： C03C3/064 ,  C03C3/062 ,  C03B7/00 ,  C03B9/16 ,  C03B9/20

CPC分类号： C03C3/068

摘要： The present invention relates to an optical glass having a refractive index (nd) of greater than or equal to 1.65 and an Abbé number (ν (nu)d) of greater than or equal to 50 for use in precision press molding. The glass exhibits that a ratio α (alpha)1/α (alpha)2 is less than 17 when temperature denoting maximum value of differential in amount of elongation of glass relative to temperature differential DELTAT (where DELTAT denotes a constant value of 1° C. or less) over a temperature range from glass transition temperature (Tg) to sag temperature (Ts) is denoted as T1, average coefficient of linear expansion over a range from T1−5° C. to T1+5° C. is denoted as alpha1, and average coefficient of linear expansion over a range from the glass transition temperature (Tg)−160° C. to the glass transition temperature (Tg)−140° C. is denoted as alpha2.

摘要翻译： 本发明涉及一种折射率（nd）大于或等于1.65的光学玻璃和用于精密压模成型的大于或等于50的Abbé数（ngr（nu）d）。 玻璃表明当温度表示相对于温差DELTAT的玻璃的伸长量的微分值的最大值时，α（α）1 /α（α）2的比值小于17（其中，ΔTt表示1℃的常数值 表示为从玻璃化转变温度（Tg）至下垂温度（Ts）的温度范围为T1，表示在T1-5℃〜T1 + 5℃的范围内的平均线膨胀系数 作为α1，在玻璃化转变温度（Tg）-160℃至玻璃化转变温度（Tg）-140℃的范围内的平均线膨胀系数表示为α2。

公开(公告)号：US07994082B2

公开(公告)日：2011-08-09

申请号：US10878618

申请日：2004-06-29

申请人： Xuelu Zou ,  Yoshiko Kasuga ,  Yasuhiro Fujiwara

发明人： Xuelu Zou ,  Yoshiko Kasuga ,  Yasuhiro Fujiwara

IPC分类号： C03C3/21 ,  C03C3/16 ,  C03C3/19 ,  C03B11/00 ,  C03B17/00

CPC分类号： C03C3/21 ,  C03C3/062 ,  C03C3/16

摘要： Preforms for precision press molding made of optical glass, optical elements, and methods of manufacturing the same are provided. The preforms are suited to precision press molding having a broad range of dispersion characteristics, a low glass transition temperature, a low sag point, and good resistance to devitrification while containing no PbO. The optical element is obtained by precision press molding the preform. One example of the preform has a refractive index (nd) of greater than or equal to 1.7 and an Abbé number (vd) of less than or equal to 32. The other example of the preform has an Abbé number (vd) exceeding 32.

摘要翻译： 提供了由光学玻璃，光学元件及其制造方法制成的精密压制成型的预制件。 预成型件适合于具有宽范围的分散特性，低玻璃化转变温度，低凹陷点以及良好的耐失透性同时不含PbO的精密压模成型。 光学元件通过精密压模成型而获得。 预成型件的一个实例具有大于或等于1.7的折射率（nd）和小于或等于32的Abbé数（vd）。预成型件的另一个实例具有超过32的Abbé数（vd）。

公开(公告)号：US20110289970A1

公开(公告)日：2011-12-01

申请号：US13171082

申请日：2011-06-28

申请人： Xuelu Zou ,  Yoshiko Kasuga ,  Yasuhiro Fujiwara

发明人： Xuelu Zou ,  Yoshiko Kasuga ,  Yasuhiro Fujiwara

IPC分类号： G02B1/00 ,  C03C3/062 ,  C03C3/064 ,  C03B23/00 ,  C03C3/19 ,  C03C3/16 ,  C03B7/00 ,  C03C3/21 ,  C03C3/066

CPC分类号： C03C3/21 ,  C03C3/062 ,  C03C3/16

摘要： Preforms for precision press molding made of optical glass, optical elements, and methods of manufacturing the same are provided. The preforms are suited to precision press molding having a broad range of dispersion characteristics, a low glass transition temperature, a low sag point, and good resistance to devitrification while containing no PbO. The optical element is obtained by precision press molding the preform. One example of the preform has a refractive index (nd) of greater than or equal to 1.7 and an Abbé number (νd) of less than or equal to 32. The other example of the preform has an Abbé number (νd) exceeding 32.

摘要翻译： 提供了由光学玻璃，光学元件及其制造方法制成的精密压制成型的预制件。 预成型件适合于具有宽范围的分散特性，低玻璃化转变温度，低凹陷点以及良好的耐失透性同时不含PbO的精密压模成型。 光学元件通过精密压模成型而获得。 预型件的一个示例具有大于或等于1.7的折射率（nd）和小于或等于32的Abbé数（＆ngr; d）。预成型件的另一个实例具有Abbé数（＆ngr; d ）超过32。

公开(公告)号：US20070247721A1

公开(公告)日：2007-10-25

申请号：US11723468

申请日：2007-03-20

申请人： Yoshiko Kasuga ,  Yasuhiro Fujiwara ,  Xuelu Zou

发明人： Yoshiko Kasuga ,  Yasuhiro Fujiwara ,  Xuelu Zou

IPC分类号： G02B3/00

CPC分类号： C03C3/068

摘要： The present invention relates to an optical glass having a refractive index (nd) of greater than or equal to 1.65 and an Abbé number (ν (nu)d) of greater than or equal to 50 for use in precision press molding. The glass exhibits that a ratio α (alpha)1/α (alpha)2 is less than 17 when temperature denoting maximum value of differential in amount of elongation of glass relative to temperature differential DELTAT (where DELTAT denotes a constant value of 1° C. or less) over a temperature range from glass transition temperature (Tg) to sag temperature (Ts) is denoted as T1, average coefficient of linear expansion over a range from T1-5° C. to T1+5° C. is denoted as alpha1, and average coefficient of linear expansion over a range from the glass transition temperature (Tg)−160° C. to the glass transition temperature (Tg)−140° C. is denoted as alpha2.

摘要翻译： 本发明涉及一种折射率（nd）大于或等于1.65的雅培数（nu（nu）d）大于或等于50的光学玻璃，用于精密加压成型。 玻璃表明当温度表示玻璃相对于温差DELTAT的伸长量的差异的最大值时，α（α）1 /α（α）2的比值小于17（其中DELTAT表示1℃的常数值 表示为从玻璃化转变温度（Tg）至下垂温度（Ts）的温度范围为T1，表示在T1-5℃〜T1 + 5℃的范围内的平均线膨胀系数 作为α1，在玻璃化转变温度（Tg）-160℃至玻璃化转变温度（Tg）-140℃的范围内的平均线膨胀系数表示为α2。

公开(公告)号：US20050032621A1

公开(公告)日：2005-02-10

申请号：US10878618

申请日：2004-06-29

申请人： Xuelu Zou ,  Yoshiko Kasuga ,  Yasuhiro Fujiwara

发明人： Xuelu Zou ,  Yoshiko Kasuga ,  Yasuhiro Fujiwara

IPC分类号： C03C3/062 ,  C03C3/16 ,  C03C3/21

CPC分类号： C03C3/21 ,  C03C3/062 ,  C03C3/16

摘要： Preforms for precision press molding made of optical glass, optical elements, and methods of manufacturing the same are provided. The preforms are suited to precision press molding having a broad range of dispersion characteristics, a low glass transition temperature, a low sag point, and good resistance to devitrification while containing no PbO. The optical element is obtained by precision press molding the preform. One example of the preform has a refractive index (nd) of greater than or equal to 1.7 and an Abbé number (vd) of less than or equal to 32. The other example of the preform has an Abbé number (vd) exceeding 32.

摘要翻译： 提供了由光学玻璃，光学元件及其制造方法制成的精密压制成型的预制件。 预成型件适合于具有宽范围的分散特性，低玻璃化转变温度，低凹陷点以及良好的耐失透性同时不含PbO的精密压模成型。 光学元件通过精密压模成型而获得。 预成型件的一个实例具有大于或等于1.7的折射率（nd）和小于或等于32的Abbé数（vd）。预成型件的另一个实例具有超过32的Abbé数（vd）。

公开(公告)号：US07827823B2

公开(公告)日：2010-11-09

申请号：US12457821

申请日：2009-06-23

申请人： Yoshiko Kasuga ,  Xuelu Zou

发明人： Yoshiko Kasuga ,  Xuelu Zou

IPC分类号： C03B11/00 ,  C03C3/066

CPC分类号： C03C3/068 ,  C03B11/08

摘要： An optical glass having high refractivity and a low sag temperature and having a low-temperature softening property that enables precision press-molding is provided, and the optical glass contains, by mol %, 5 to 50% of B2O3, 3 to 50% of SiO2, 5 to 40% of TiO2, 1 to 40% of ZnO, 5 to 20% of La2O3, 0 to 10% of Gd2O3, 0 to 15% of Nb2O5, 0 to 10% of ZrO2, 0 to 5% of Ta2O5, 0 to 10% of Bi2O3, 0 to 10% of MgO, 0 to 8% of CaO, 0 to 10% of SrO, 0 to 10% of BaO, provided that the total content of MgO, CaO, SrO and BaO is 15% or less, 0 to 20% of Li2O, and 0 to 5% of Na2O, optionally containing Sb2O3 as a refining agent, and having a refractive index (nd) of 1.8 or more and an Abbe's number (νd) of 35 or less.

摘要翻译： 提供具有高折射率和低下垂温度并具有能够进行精密加压成型的低温软化性的光学玻璃，光学玻璃含有5〜50％的B 2 O 3，3〜50％的 SiO2，5〜40％的TiO2，1〜40％的ZnO，5〜20％的La2O3，0〜10％的Gd2O3，0〜15％的Nb2O5，0〜10％的ZrO2，0〜5％的Ta2O5 ，0〜10％的Bi2O3，0〜10％的MgO，0〜8％的CaO，0〜10％的SrO，0〜10％的BaO，条件是MgO，CaO，SrO和BaO的总含量为 15％以下，0〜20％的Li 2 O，0〜5％的Na 2 O，任选含有作为澄清剂的Sb 2 O 3，折射率（nd）为1.8以上，阿贝数（ngr） 35以下。

公开(公告)号：US07157391B2

公开(公告)日：2007-01-02

申请号：US10744096

申请日：2003-12-24

申请人： Yoshiko Kasuga ,  Xuelu Zou

发明人： Yoshiko Kasuga ,  Xuelu Zou

IPC分类号： C03C3/16 ,  C03C3/19

CPC分类号： C03C3/16 ,  C03C3/21

摘要： An optical glass being free of lead and fluorine, having a low glass transition temperature permitting press-molding with a mold formed of stainless steel and having high climate resistance includes an optical glass comprising, by mol %, 25 to 44% of P2O5, 10 to 40% of a total of Li2O, Na2O and K2O, 5 to 40% of ZnO, 1 to 35% of BaO and at least one components selected from Nb2O5, Bi2O3 and WO3, having a glass transition temperature (Tg) of 370° C. or lower and being free of lead and fluorine and an optical glass which is free of lead and fluorine, has a mass loss ratio of less than 0.25% when immersed in pure water, and has a glass transition temperature (Tg) of 370° C. or lower.

摘要翻译： 不含铅和氟的光学玻璃具有低玻璃化转变温度，允许用不锈钢形成的模具进行加压成型并具有高耐气候性的光学玻璃包括摩尔％为25％至44％的P _{2 5，O 2，O 2和O 2的总和的10至40％ 2O，5〜40％的ZnO，1〜35％的BaO和至少1种选自Nb 2 O 5的组分，Bi 2 O 3， 具有玻璃化转变温度（Tg）为370℃或更低并且不含铅和氟的玻璃化转变温度（W 3）和WO 3 不含铅和氟的玻璃在浸入纯水中时质量损失率小于0.25％，玻璃化转变温度（Tg）为370℃以下。}

公开(公告)号：US07700507B2

公开(公告)日：2010-04-20

申请号：US11225886

申请日：2005-09-14

申请人： Yoshiko Kasuga ,  Xuelu Zou

发明人： Yoshiko Kasuga ,  Xuelu Zou

IPC分类号： C03C3/066 ,  C03C3/068 ,  C03C3/095

CPC分类号： C03C3/068

摘要： An optical glass which has an Abbe's number (νd) of 50 to 59, has the property of not easily reacting with a press mold, a low-temperature softening property, excellent glass stability and high refractivity, and is suitable for precision press-molding. The optical glass comprising B2O3 and SiO2 as essential components and having a B2O3 and SiO2 total content (B2O3+SiO2) of 45 to 70 by mol % and an SiO2 content/B2O3 content molar ratio (SiO2/B2O3) of from 0.1 to 0.5, the optical glass further comprising, by mol %, 5 to 15% of La2O3, 0.1 to 8% of Gd2O3, provided that the total content of La2O3 and Gd2O3 is 8% or more, 0 to 10% of Y2O3, 3 to 18% of Li2O, provided that the molar ratio of the content of Li2O to the total content of B2O3 and SiO2 [Li2O/(B2O3+SiO2)] is over 0 but not more than 0.2, 0.1 to 15% of ZnO, 2 to 20% of CaO, 0 to 5% of BaO, provided that the content of BaO is smaller than the content of ZnO, 0 to 5% of SrO, 0 to 5% of MgO, provided that the molar ratio of the total content of MgO, CaO, SrO and BaO to the total content of B2O3 and SiO2 [(MgO+CaO+SrO+BaO)/(B2O3+SiO2) is from 0.1 to 0.4, and 0 to 5% of ZrO2, and having a refractive index (nd) and an Abbe's number (νd) which satisfy the equation (1), νd≧308.5−150×nd (in which 50≦νd≦59)  (1).

摘要翻译： 阿贝数（＆ngr; d）为50〜59的光学玻璃具有不易与压模成型反应的特性，低温软化性，玻璃稳定性优异，折射率高，适用于精密压制 模特儿 包含B 2 O 3和SiO 2作为必要成分并且B 2 O 3和SiO 2的总含量（B 2 O 3 + SiO 2）为45〜70摩尔％，SiO 2含量/ B 2 O 3含量摩尔比（SiO 2 / B 2 O 3）为0.1〜0.5的光学玻璃， 光学玻璃还含有5〜15％的La 2 O 3，0.1〜8％的Gd 2 O 3，条件是La 2 O 3和Gd 2 O 3的总含量为8％以上，0〜10％的Y 2 O 3，3〜18％ Li 2 O的含量与B 2 O 3和SiO 2 [Li 2 O /（B 2 O 3 + SiO 2）]的总含量的摩尔比为0以上且0.2以下，ZnO为0.1〜15％，2〜20质量％ 的CaO，0〜5％的BaO，条件是BaO的含量小于ZnO的含量，0〜5％的SrO，0〜5％的MgO，条件是MgO的总含量， CaO，SrO和BaO相对于B2O3和SiO2 [（MgO + CaO + SrO + BaO）/（B2O3 + SiO2）的总含量为0.1〜0.4，0〜5％的ZrO 2，折射率（nd ）和满足式（1）的阿贝数（＆ngr; d），＆ngr;d≥308.5 -150×nd（其中50＆nlE;＆ngr; d＆nlE; 59）（1）。

公开(公告)号：US07232779B2

公开(公告)日：2007-06-19

申请号：US10643991

申请日：2003-08-20

申请人： Yoshiko Kasuga ,  Xuelu Zou

发明人： Yoshiko Kasuga ,  Xuelu Zou

IPC分类号： C03C3/066 ,  C03C3/155

CPC分类号： C03C3/068

摘要： Provided are optical glass exhibiting a refractive index (nd) in a range of 1.75 to 1.87, an Abbé number (νd) in a range of 80 to 45, and excellent low-temperature softening properties even when not incorporating Th2O5 as well as permitting a low production cost; a precision press molding preform and an optical element comprised of such glass; a method of manufacturing the preform; and a method of manufacturing the optical element. The optical glass comprises, in a molar percent, 30 to 45 percent of B2O3, 2 to 15 percent of SiO2, 10 to 20 percent of La2O3, 1 to 10 percent of TiO2, 10 to 30 percent of ZnO, 2 to 15 percent of Li2O, higher than 0 percent and 10 percent or less of WO3, 0 to 15 percent of Nb2O5, and 0 to 10 percent of ZrO2, wherein the total amount of the above-mentioned components is higher than 95 percent, the glass exhibits a refractive index (nd) in a range of 1.75 to 1.87, and an Abbé number (νd) in a range of 80 to 45. The precision press molding preform and the optical element are comprised of the glass. In the method of manufacturing a precision press molding preform, the preform comprised of the optical glass is formed. The method of manufacturing an optical element employs the precision press molding preform.

摘要翻译： 本发明提供折射率（nd）在1.75〜1.87的范围内的光学玻璃，在80〜45的范围内的Abbé数（nud），即使在不并入Th <2的情况下也具有优异的低温软化性， 并且允许低的生产成本; 精密压模成型预成型件和由这种玻璃构成的光学元件; 制造预成型体的方法; 以及制造光学元件的方法。 光学玻璃的摩尔百分比含有30〜45％的B 2 O 3 3，2〜15％的SiO 2，10 至20％的二氧化钛，1％至10％的TiO 2，10％至30％的ZnO，2％至15％的TiO 2 高于WO 3的0％和10％或更少的Nb 2 O 3，Nb 2 O 5的0至15％ 和0〜10％的ZrO 2，其中上述组分的总量高于95％，玻璃的折射率（nd）在 1.75至1.87，以及在80至45范围内的修饰数（nud）。精密压模成型预成型件和光学元件由玻璃构成。 在制造精密压模成型预成型体的方法中，形成由光学玻璃构成的预制件。 光学元件的制造方法采用精密的压模成形体。

公开(公告)号：US07670978B2

公开(公告)日：2010-03-02

申请号：US11494506

申请日：2006-07-28

申请人： Yoshiko Kasuga ,  Mikio Ikenishi ,  Xuelu Zou

发明人： Yoshiko Kasuga ,  Mikio Ikenishi ,  Xuelu Zou

IPC分类号： C03C3/066 ,  C03C3/068

CPC分类号： C03C3/068 ,  C03B11/122 ,  Y02P40/57

摘要： The optical glass has a refractive index of equal to or greater than 1.65 and an Abbé number ranging from 50 to 60. In the optical glass, as molar basis, a ratio of SiO2 content to B2O3 content is greater than 0.5 and equal to or less than 0.90; a total content of SiO2 and B2O3 ranges from 50 to 70 percent; Li2O content ranges from 5 to 20 percent; La2O3 content ranges from 0.5 to 22 percent; a ratio of ZnO content to RO (MgO, CaO, SrO and BaO) is equal to or greater than 0.5; a total content of Gd2O3, Y2O3 and Yb2O3 ranges from 1 to 15 percent; Sb2O3 content ranges from 0 to 1 percent; and no BaO is comprised, or a ratio of the total content of La2O3, Gd2O3, Y2O3 and Yb2O3 to the content of BaO is equal to or greater than 10.

摘要翻译： 光学玻璃具有等于或大于1.65的折射率，范围为50至60的Abbé数。在光学玻璃中，以摩尔计为基准，SiO 2含量与B 2 O 3含量的比率大于0.5并且等于或小于 大于0.90; SiO2和B2O3的总含量范围为50-70％; Li2O含量在5％至20％之间; La2O3含量范围为0.5〜22％; ZnO含量与RO（MgO，CaO，SrO和BaO）的比例等于或大于0.5; Gd 2 O 3，Y 2 O 3和Yb 2 O 3的总含量为1〜15％。 Sb2O3含量范围为0〜1％ 并且不包含BaO，或者La2O3，Gd2O3，Y2O3和Yb2O3的总含量与BaO的含量的比例等于或大于10。