公开(公告)号：US08479539B2

公开(公告)日：2013-07-09

申请号：US11315317

申请日：2005-12-23

申请人： Yoshiko Kasuga ,  Kazuo Tachiwana ,  Hiroaki Yanagita

发明人： Yoshiko Kasuga ,  Kazuo Tachiwana ,  Hiroaki Yanagita

IPC分类号： C03B25/00

CPC分类号： C03C3/062 ,  Y10S501/901

摘要： A method of making a press-moldable glass, including melting starting materials, forming a melt, and annealing a formed glass, wherein the melt has a composition such that, (1) when rapidly cooled to room temperature, it becomes glass that has a scattering coefficient of less than 0.005 cm−1 at wavelengths of from 400 to 2,500 nm or comprises crystals with a volumetric ratio of less than 10−6, and (2) when maintained for three hours at a temperature 10° C. higher than the glass transition temperature, maintained for 10 min at a temperature yielding a viscosity of 104.5 to 103.5 dPa·s, and then rapidly cooled to room temperature, (3) the resulting glass has (a) a scattering coefficient of at least one wavelength from 400 to 2,500 nm of greater than 0.01 cm−1 or (b) crystals with a volumetric ratio of greater than 10−5. A temperature for annealing is lower than for glass transition.

摘要翻译： 一种制造可压制玻璃的方法，包括熔融起始材料，形成熔体并退火成形的玻璃，其中熔体具有如下组成：（1）当快速冷却至室温时，其变为具有 在波长为400至2500nm的散射系数小于0.005cm -1，或包含体积比小于10-6的晶体，和（2）当在比10℃高10℃的温度下保持3小时时 玻璃化转变温度，在104.5〜103.5dPa·s的粘度下保持10分钟，然后迅速冷却至室温，（3）得到的玻璃的（a）至少一个波长的散射系数为400 到2500nm大于0.01cm -1或（b）体积比大于10-5的晶体。 退火温度低于玻璃化转变温度。

公开(公告)号：US20130065745A1

公开(公告)日：2013-03-14

申请号：US13605143

申请日：2012-09-06

申请人： Shigeru AOYAGI ,  Jun Nakamura ,  Kazuo Tachiwana ,  Junko Akojima

发明人： Shigeru AOYAGI ,  Jun Nakamura ,  Kazuo Tachiwana ,  Junko Akojima

IPC分类号： G06F17/30 ,  C03C3/00

CPC分类号： G01N33/386

摘要： There is provided a method for providing glass information and a glass material capable of preventing a generation of a gap between an evaluation regarding chemical durability of the glass material and an actual surface state, which is the method for providing glass information for providing information regarding the chemical durability of the glass material, wherein a correlation between a variation of hydrogen ion concentration indexes of a process liquid in which the glass material is immersed, and a variation of chemical durability index values of a prescribed types of glass materials, is tabulated in a visible form, and is provided individually for each type of the glass materials.

摘要翻译： 提供了一种提供玻璃信息的方法和能够防止在关于玻璃材料的化学耐久性的评估与实际表面状态之间产生间隙的玻璃材料，这是提供用于提供有关玻璃的信息的玻璃信息的方法 玻璃材料的化学耐久性，其中将浸渍有玻璃材料的处理液体的氢离子浓度指数的变化与规定类型的玻璃材料的化学耐久性指数值的变化之间的相关性列在 可视形式，并且为每种类型的玻璃材料单独提供。

公开(公告)号：US07015164B2

公开(公告)日：2006-03-21

申请号：US10270303

申请日：2002-10-15

申请人： Yoshiko Kasuga ,  Kazuo Tachiwana ,  Hiroaki Yanagita

发明人： Yoshiko Kasuga ,  Kazuo Tachiwana ,  Hiroaki Yanagita

IPC分类号： C03C3/062

CPC分类号： C03C3/062 ,  Y10S501/901

摘要： Disclosed is an optical glass comprising, expressed as weight percentages, greater than or equal to 18 percent and less than 30 percent of SiO2, greater than or equal to 12 percent and less than 23 percent of BaO, 22 to 37 percent TiO2, greater than or equal to 7 percent and less than 16 percent Nb2O5, 5 to 20 percent of Na2O, 0 to 6 percent of K2O, 0 to 5 percent of CaO, 0 to 5 percent of SrO, 0 to 4 percent of ZrO2, 0 to 3 percent of Ta2O5, 0 to 1 percent of Sb2O5, and greater than or equal to 0 percent and less than 0.5 percent of P2O5, and by essentially not comprising PbO, As2O3, and F. The optical glass exhibits a refractive index (nd) greater than or equal to 1.80 and an Abbé number (vd) less than or equal to 30. A method of manufacturing a glass material for press molding is disclosed. This method comprises the steps of melting the glass starting materials, forming the glass melt obtained, and annealing the formed glass and is characterized in that: the glass melt has a composition such that, (1) when rapidly cooled to room temperature, said glass melt becomes glass that has a scattering coefficient of less than 0.005 cm−1 at wavelengths of from 400 to 2,500 nm or comprises crystals with a volumetric ratio of less than 10−6, and (2) when maintained for three hours at a temperature 10° C. higher than the glass transition temperature, maintained for 10 min at a temperature yielding a viscosity of 104.5 to 103.5 dPa·s, and then rapidly cooled to room temperature, said glass melt becomes glass that has a scattering coefficient at at least one wavelength from 400 to 2,500 nm of greater than 0.01 cm−1 or comprises crystals with a volumetric ratio of greater than 10−5; and an annealing of said formed glass is conducted at a temperature lower than the glass transition temperature.

公开(公告)号：US07501369B2

公开(公告)日：2009-03-10

申请号：US11826424

申请日：2007-07-16

申请人： Kazuo Tachiwana

发明人： Kazuo Tachiwana

IPC分类号： C03C3/068 ,  C03C3/155 ,  C03C3/095

CPC分类号： C03C3/068 ,  Y10S501/903

摘要： An optical glass having high-refractivity and low-dispersion optical properties and having a low glass transition point so that a heat-treating furnace can be operated for a long period of time. The optical glass has a refractive index nd of at least 1.875, an Abbe's number νd of at least 39.5 and a glass transition point Tg of 700° C. or lower, and contains at least one of La2O3, Gd2O3, Y2O3 or Yb2O3 and at least one of ZrO2, Ta2O5 or Nb2O5, with a weight ratio of the total content of La2O3, Gd2O3, Y2O3 and Yb2O3 to the total content of SiO2 and B2O3 of from 3.2 to 5 and the weight ratio of the total content of ZrO2, Ta2O5 and Nb2O5 to the total content of SiO2 and B2O3 is from 1.1 to 1.5.

摘要翻译： 具有高折射率和低分散光学性能并且具有低玻璃化转变点的光学玻璃使得热处理炉能够长时间地操作。 光学玻璃的折射率nd为1.875以上，阿贝数nud为39.5以上，玻璃化转变温度Tg为700℃以下，含有La 2 O 3，Gd 2 O 3，Y 2 O 3，Yb 2 O 3中的至少一种， ZrO 2，Ta 2 O 5或Nb 2 O 5中的至少一种，La 2 O 3，Gd 2 O 3，Y 2 O 3和Yb 2 O 3的总含量与SiO 2和B 2 O 3的总含量的重量比为3.2〜5，ZrO 2，Ta 2 O 5的总含量 和Nb 2 O 5相对于SiO 2和B 2 O 3的总含量为1.1〜1.5。

公开(公告)号：US20070262480A1

公开(公告)日：2007-11-15

申请号：US11826424

申请日：2007-07-16

申请人： Kazuo Tachiwana

发明人： Kazuo Tachiwana

IPC分类号： C03C3/066 ,  B29D11/00 ,  C03C3/04

CPC分类号： C03C3/068 ,  Y10S501/903

摘要： An optical glass having high-refractivity and low-dispersion optical properties and having a low glass transition point so that a heat-treating furnace can be operated for a long period of time. The optical glass has a refractive index nd of at least 1.875, an Abbe's number vd of at least 39.5 and a glass transition point Tg of 700° C. or lower, and contains at least one of La2O3, Gd2O3, Y2O3 or Yb2O3 and at least one of ZrO2, Ta2O5 or Nb2O5, with a weight ratio of the total content of La2O3, Gd2O3, Y2O3 and Yb2O3 to the total content of SiO2 and B2O3 of from 3.2 to 5 and the weight ratio of the total content of ZrO2, Ta2O5 and Nb2O5 to the total content of SiO2 and B2O3 is from 1.1 to 1.5.

摘要翻译： 具有高折射率和低分散光学性能并且具有低玻璃化转变点的光学玻璃使得热处理炉能够长时间地操作。 光学玻璃的折射率nd为至少1.875，阿贝数vd为39.5以上，玻璃化转变温度Tg为700℃以下，并且含有La 2 O 3， O 3，O 2 O 3，Y 2 O 3，或Yb <3， 或者至少一个ZrO 2 2，Ta 2 O 5，或 Nb 2 O 3，其中La 2 O 3 O 3的总含量，Gd > 2 3，Y 2，O 3和Yb 2 O 3， / SUB>相对于SiO 2和B 2 O 3 N 3的总含量为3.2至5，并且总含量的重量比 ZrO 2 2，Ta 2 O 5和Nb 2 O 5 5以及Nb 2 O 5 SiO 2和B 2 O 3 3的含量为1.1〜1.5。

公开(公告)号：US20060105897A1

公开(公告)日：2006-05-18

申请号：US11315317

申请日：2005-12-23

申请人： Yoshiko Kasuga ,  Kazuo Tachiwana ,  Hiroaki Yanagita

发明人： Yoshiko Kasuga ,  Kazuo Tachiwana ,  Hiroaki Yanagita

IPC分类号： C03C10/14

CPC分类号： C03C3/062 ,  Y10S501/901

摘要： Disclosed is an optical glass comprising, expressed as weight percentages, greater than or equal to 18 percent and less than 30 percent of SiO2, greater than or equal to 12 percent and less than 23 percent of BaO, 22 to 37 percent TiO2, greater than or equal to 7 percent and less than 16 percent Nb2O5, 5 to 20 percent of Na2O, 0 to 6 percent of K2O, 0 to 5 percent of CaO, 0 to 5 percent of SrO, 0 to 4 percent of ZrO2, 0 to 3 percent of Ta2O5, 0 to 1 percent of Sb2O5, and greater than or equal to 0 percent and less than 0.5 percent of P2O5, and by essentially not comprising PbO, As2O3, and F. The optical glass exhibits a refractive index (nd) greater than or equal to 1.80 and an Abbé number (vd) less than or equal to 30. A method of manufacturing a glass material for press molding is disclosed. This method comprises the steps of melting the glass starting materials, forming the glass melt obtained, and annealing the formed glass and is characterized in that: the glass melt has a composition such that, (1) when rapidly cooled to room temperature, said glass melt becomes glass that has a scattering coefficient of less than 0.005 cm−1 at wavelengths of from 400 to 2,500 nm or comprises crystals with a volumetric ratio of less than 10−6, and (2) when maintained for three hours at a temperature 10° C. higher than the glass transition temperature, maintained for 10 min at a temperature yielding a viscosity of 104.5 to 103.5 dPa·s, and then rapidly cooled to room temperature, said glass melt becomes glass that has a scattering coefficient at at least one wavelength from 400 to 2,500 nm of greater than 0.01 cm−1 or comprises crystals with a volumetric ratio of greater than 10−5; and an annealing of said formed glass is conducted at a temperature lower than the glass transition temperature.

公开(公告)号：US6156684A

公开(公告)日：2000-12-05

申请号：US97743

申请日：1998-06-16

申请人： Kouichi Sato ,  Kazuo Tachiwana

发明人： Kouichi Sato ,  Kazuo Tachiwana

IPC分类号： C03C3/16 ,  C03C3/19 ,  G02B5/30 ,  C03C3/17 ,  C03C3/21 ,  C03C4/00

CPC分类号： C03C3/19 ,  C03C3/16 ,  G02B5/30 ,  Y10S501/901

摘要： In a light polarization control element using a stress-optical coefficient glass, the stress-optical coefficient glass is substantially composed of a phosphorous acid glass containing 20 to 60 percent by weight of P.sub.2 O.sub.5 and 40 to 73 percent by weight of BaO and PbO.

摘要翻译： 在使用应力光学系数玻璃的光偏振控制元件中，应力光学系数玻璃基本上由含有20〜60重量％的P 2 O 5和40〜73重量％的BaO和PbO的亚磷酸玻璃构成。