公开(公告)号：US20090288450A1

公开(公告)日：2009-11-26

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： C03B23/00

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 (vd) 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Sb 2 O 3作为澄清剂，折射率（nd）为1.8以上，阿贝数（vd）为35或 减。

公开(公告)号：US07351675B2

公开(公告)日：2008-04-01

申请号：US11038495

申请日：2005-01-21

申请人： Yoshiko Kasuga ,  Xuelu Zou

发明人： Yoshiko Kasuga ,  Xuelu Zou

IPC分类号： C03C3/068 ,  C03C3/095

CPC分类号： C03B11/122 ,  C03B7/12 ,  C03B11/08 ,  C03C3/068 ,  Y02P40/57 ,  Y10S501/903

摘要： An optical glass taking account of meltability and the moldability of a preform, having optical constants including a refractive index (nd) of at least 1.57 but less than 1.67 and an Abbe's number (νd) of over 55 but not more than 65, having the property of softening at a low temperature and being suitable as a glass for precision press-molding, the optical glass including an optical glass containing B2O3, SiO2, La2O3, Gd2O3, an alkali metal oxide and an alkaline earth metal oxide as essential components, having a B2O3 and SiO2 total content of 52% by weight or more and having an SiO2/B2O3 content ratio of from 0.38 to 1.2, and an optical glass wherein the relationship of the refractive index (nd) and the Abbe's number (νd) satisfies the equation (1), νd>260−126×nd.   (1)

摘要翻译： 考虑到熔融性和预型件的成型性的光学玻璃，其具有包括折射率（nd）至少为1.57但小于1.67的光学常数和超过55但不大于65的阿贝数（nud），其具有 在低温下软化的性质并且适合作为精密加压成型的玻璃，所述光学玻璃包括含有B 2 O 3 3，SiO 2的光学玻璃， 2 2，2 3，3 3，N 2 O 3，碱金属氧化物和 碱土金属氧化物作为必要组分，具有52重量％以上的B 2 N 3 O 3和SiO 2 2总含量，并具有 SiO 2含量比为0.38〜1.2的光学玻璃，其中折射率（nd）/ 并且阿贝数（nud）满足等式（1），<？in-line-formula description =“In-line Formulas”end =“lead”？> nud> 260-126xnd。 （1）<？in-line-formula description =“In-line Formulas”end =“tail”？>

公开(公告)号：US20070032366A1

公开(公告)日：2007-02-08

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： C03C3/095 ,  C03C3/089 ,  C03B11/00 ,  C03C3/078 ,  C03B23/00 ,  C03B13/00

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的折射率和从50至60的Abbé数。在光学玻璃中，以摩尔计，SiO 2含量与B _{2 <3 O 3含量大于0.5且等于或小于0.90; SiO 2和B 2 O 3 3的总含量在50-70％的范围内; Li 2 O 2含量范围为5％至20％; La 2 O 3 3含量范围为0.5％至22％; ZnO含量与RO（MgO，CaO，SrO和BaO）的比例等于或大于0.5; Gd 2 N 3 O 3，Y 2 O 3和Y b 2的总含量 O 3范围为1至15％; Sb 2 O 3 3含量为0至1％; 并且不包含BaO，或者La 2 O 3 O 3的总含量，Gd 2 O 3 3 / >，Y 2 O 3 3和Y b 2 O 3 3相对于BaO的含量等于或大于 10。}

公开(公告)号：US07087543B2

公开(公告)日：2006-08-08

申请号：US10608435

申请日：2003-06-30

申请人： Yoshiko Kasuga ,  Xuelu Zou

发明人： Yoshiko Kasuga ,  Xuelu Zou

IPC分类号： C03C3/066 ,  C03C3/095 ,  C03C4/00 ,  C03C3/093

CPC分类号： C03C3/095 ,  Y10S501/903

摘要： An optical glass having a refractive index (nd) of 1.57 to 1.67, an Abbe's number (νd) of 55 to 65 and a glass transition temperature (Tg) of 560° C. or lower and having a low-temperature softening property and excellent climate resistance or a haze value of 3% or less, or an optical glass comprising, by mol %, 22 to 40% of B2O3, 12 to 40% of SiO2, 2 to 20% of Li2O, 5 to 15% of CaO, 2 to 14% of ZnO, 0.5 to 4% of La2O3, 0 to 3% of Gd2O3, 0 to 3% of Y2O3, the total content of La2O3, Gd2O3 and Y2O3 being at least 1%, 0 to 5% of Al2O3, 0 to 3% of ZrO2 and 0 to 5% of BaO, the total content of the above components being more than 96%, and having a refractive index (nd) of 1.57 to 1.67 and an Abbe's number (νd) of 55 to 65.

摘要翻译： 折射率（nd）为1.57〜1.67，阿贝数（nud）为55〜65，玻璃化转变温度（Tg）为560℃以下且具有低温软化性和优异的光学玻璃 耐气候性或雾度值为3％以下，或者含有摩尔％22〜40％的B 2 O 3 3的光学玻璃，12〜40％ 的SiO 2，2〜20％的Li 2 O，5〜15％的CaO，2〜14％的ZnO，0.5〜4％的La 2 O 3， 2％O 3，0〜3％的Gd 2 O 3 3，0〜3％的Y 2 < 3 O 3，3 O 3，3 O 3，3 N 3 O 3的总含量 和/或Y 2 O 3 3以及至少1％，0至5％的Al 2 O 3 3 / 0〜3％的ZrO 2和0〜5％的BaO，上述成分的总含量大于96％，折射率（nd）为1.57〜1.67 阿贝数（nud）为55至65。

公开(公告)号：US20060105900A1

公开(公告)日：2006-05-18

申请号：US11273621

申请日：2005-11-15

申请人： Yoshiko Kasuga ,  Xuelu Zou

发明人： Yoshiko Kasuga ,  Xuelu Zou

IPC分类号： C03C3/095 ,  C03C3/068

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 (vd) of 35 or less.

摘要翻译： 提供了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能的光学玻璃，并且光学玻璃含有摩尔％为5〜50％的B 2， 3〜50％的SiO 2，5〜40％的TiO 2，1〜40％的ZnO，5 至20％的O 2 O 3，0至10％的Gd 2 O 3 3，0至15 Nb 2 O 5的％，ZrO 2的0〜10％，Ta 2 O 5的0〜5％ O 5，0〜10％的Bi 2 O 3 3，0〜10％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，任选地含有Sb 2 O 3 3 3，作为澄清剂，并且折射率（nd）为1.8或 阿贝数（vd）为35以下。

公开(公告)号：US20060079390A1

公开(公告)日：2006-04-13

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： C03C3/095 ,  C03C3/068 ,  C03C3/066

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)

公开(公告)号：US20050164864A1

公开(公告)日：2005-07-28

申请号：US11038495

申请日：2005-01-21

申请人： Yoshiko Kasuga ,  Xuelu Zou

发明人： Yoshiko Kasuga ,  Xuelu Zou

IPC分类号： G02B1/00 ,  C03B7/12 ,  C03B11/08 ,  C03B11/12 ,  C03C3/064 ,  C03C3/068 ,  C03B21/00 ,  C03C3/066

CPC分类号： C03B11/122 ,  C03B7/12 ,  C03B11/08 ,  C03C3/068 ,  Y02P40/57 ,  Y10S501/903

摘要： An optical glass taking account of meltability and the moldability of a preform, having optical constants including a refractive index (nd) of at least 1.57 but less than 1.67 and an Abbe's number (νd) of over 55 but not more than 65, having the property of softening at a low temperature and being suitable as a glass for precision press-molding, the optical glass including an optical glass containing B2O3, SiO2, La2O3, Gd2O3, an alkali metal oxide and an alkaline earth metal oxide as essential components, having a B2O3 and SiO2 total content of 52% by weight or more and having an SiO2/B2O3 content ratio of from 0.38 to 1.2, and an optical glass wherein the relationship of the refractive index (nd) and the Abbe's number (νd) satisfies the equation (1), νd>260−126×nd  (1).

摘要翻译： 考虑到熔融性和预型件的成型性的光学玻璃，其具有包括折射率（nd）至少为1.57但小于1.67的光学常数和超过55但不大于65的阿贝数（nud），其具有 在低温下软化的性质并且适合作为精密加压成型的玻璃，所述光学玻璃包括含有B 2 O 3 3，SiO 2的光学玻璃， 2 2，2 3，3 3，N 2 O 3，碱金属氧化物和 碱土金属氧化物作为必要组分，具有52重量％以上的B 2 N 3 O 3和SiO 2 2总含量，并具有 SiO 2含量比为0.38〜1.2的光学玻璃，其中折射率（nd）/ 并且阿贝数（nud）满足等式（1），<？in-line-formula description =“In-line Formulas”end =“lead”？> nud> 260-126xnd（1）。<？in-line -fo rmulae description =“在线公式”end =“tail”？>

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：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：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.