Glasses of low density and high index of refraction for ophthalmic and
optical applications
    1.
    发明授权
    Glasses of low density and high index of refraction for ophthalmic and optical applications 失效
    用于眼科和光学应用的低密度和高折射率的眼镜

    公开(公告)号:US4540672A

    公开(公告)日:1985-09-10

    申请号:US635493

    申请日:1984-07-30

    摘要: This invention relates to glasses especially suitable for optical and ophthalmic applications which exhibit densities less than about 2.65 g/cm.sup.3, refractive indices between about 1.595-1.607, and Abbe numbers between about 40-47, and which consist essentially, in weight percent on the oxide basis, of______________________________________ SiO.sub.2 45-55 MgO and/or BaO and/or B.sub.2 O.sub.3 5-13 SrO and/or La.sub.2 O.sub.3 0-6 Al.sub.2 O.sub.3 0-5 CaO 0-12 Li.sub.2 O 1-7.5 ZnO 0-8 Na.sub.2 O 1-9 ZrO.sub.2 0-7 K.sub.2 O >10-24 TiO.sub.2 9.5-17.5 As.sub.2 O.sub.3 and/or Sb.sub.2 O.sub.3 0-1 and 13.5

    摘要翻译: 本发明涉及特别适用于光学和眼科应用的眼镜,它们的密度小于约2.65g / cm 3,折射率在约1.595-1.607之间,阿贝数在约40-47之间,并且基本上以重量百分数 氧化物的基础为-SiO 2 45-55 MgO和/或BaO和/或-B 2 O 3 5-13 SrO和/或La 2 O 3 0-6-Al 2 O 3 0-5 CaO 0-12 -Li2O 1-7.5 ZnO 0-8 -Na2O 1-9 ZrO2 0-7-K2O> 10-24 TiO2 9.5-17.5-As2O3和/或Sb2O3 0-1-和13.5

    Moldable fluoroborate optical glasses
    2.
    发明授权
    Moldable fluoroborate optical glasses 失效
    可成型氟硼酸盐光学眼镜

    公开(公告)号:US4469800A

    公开(公告)日:1984-09-04

    申请号:US518045

    申请日:1983-07-28

    摘要: This invention is concerned with the preparation of moldable optical glasses having refractive indices of about 1.65-1.735, dispersions of about 38-58, transition temperatures lower than about 500.degree. C., softening points lower than about 600.degree. C., and satisfactory chemical durability consisting essentially, expressed in terms of parts by weight as calculated from the batch, of______________________________________ B.sub.2 O.sub.3 22-38 BaO 3-33 La.sub.2 O.sub.3 5-33 PbO 0-36 ZnO 0-14 CdO 0-12 SrO 0-10 BaO + La.sub.2 O.sub.3 + PbO + ZnO + CdO + SrO 55-68 Li.sub.2 O 0-4 Na.sub.2 O 0-4 Li.sub.2 O + Na.sub.2 O 1.5-4 F 1-8. ______________________________________

    摘要翻译: 本发明涉及具有约1.65-1.735折射率,约38-58分散度,低于约500℃的转变温度,低于约600℃的软化点和令人满意的化学品的可成型光学眼镜的制备 基本上按照批次计算的重量百分比表示的B 2 O 3 22-38 -BaO 3-33 -La 2 O 3 5-33 -PbO 0-36 -ZnO 0-14 -CdO 0-12 -SrO的耐久性 0-10 -BaO + La2O3 + PbO + ZnO + CdO + SrO 55-68 -Li2O 0-4 -Na2O 0-4 -Li2O + Na2O 1.5-4 -F 1-8。

    Method of making photochromic glasses suitable for simultaneous heat
treatment and shaping
    3.
    发明授权
    Method of making photochromic glasses suitable for simultaneous heat treatment and shaping 失效
    制造适合于同时热处理和成型的光致变色眼镜的方法

    公开(公告)号:US4282021A

    公开(公告)日:1981-08-04

    申请号:US88546

    申请日:1979-10-26

    IPC分类号: C03C4/06 C03C3/26

    CPC分类号: C03B23/0252 C03C4/06

    摘要: The instant invention is related to the manufacture of photochromic glasses having base compositions within a very narrow interval of the alkali metal boroaluminosilicate system wherein silver chloride and/or silver bromide crystals impart photochromic properties. The glasses are notable for their rapid fading characteristics and relatively low temperature dependence of darkening. The compositions are especially suitable for a production process which contemplates simultaneously shaping articles from glass sheet and developing photochromic properties therein.

    摘要翻译: 本发明涉及在碱金属硼铝硅酸盐体系非常狭窄的间隔内具有碱性组成的光致变色玻璃的制造,其中氯化银和/或溴化银晶体赋予光致变色性质。 眼镜因其快速褪色特性和相对较低的变暗温度依赖性而着名。 所述组合物特别适用于考虑同时从玻璃板成型制品并在其中显影光致变色性能的生产方法。

    Photochromic glass suitable for ophthalmic applications
    4.
    发明授权
    Photochromic glass suitable for ophthalmic applications 失效
    适用于眼科应用的光致变色玻璃

    公开(公告)号:US4374931A

    公开(公告)日:1983-02-22

    申请号:US338042

    申请日:1982-01-08

    CPC分类号: C03C3/093 C03C4/06

    摘要: The present invention is concerned with the production of photochromic glass compositions consisting essentially, expressed in terms of weight percent on the oxide basis, as calculated from the batch, of______________________________________ SiO.sub.2 52-59 B.sub.2 O.sub.3 18-23 Al.sub.2 O.sub.3 6-8 Li.sub.2 O 1-2.5 Na.sub.2 O 1-3 K.sub.2 O 8-13 ZrO.sub.2 2-6 TiO.sub.2 0-3 ______________________________________ and containing, as analyzed in weight percent, of______________________________________ Ag 0.17-0.22 CuO 0.012-0.019 Cl 0.29-0.35 Br 0.06-0.12 PbO 0.1-0.15 ______________________________________ exhibiting, in 0.4 mm cross section, a clear luminous transmittance in excess of 90%, a darkened luminous transmittance below about 45% at a temperature of 25.degree. C., a darkened luminous transmittance below about 57% at a temperature of 40.degree. C., and a half fading time at both temperatures of about five minutes.

    摘要翻译: 本发明涉及光致变色玻璃组合物的制备,其基本上由以批量计算的基于氧化物的重量百分数表示的-SiO 2 52-59 -B 2 O 3 18-23 -Al 2 O 3 6-8 -Li 2 O 1-2.5 -Na2O 1-3-K2O 8-13-ZrO2 2-6-TiO2 0-3 - 并以重量百分比计含有-Ag 0.17-0.22 -CuO 0.012-0.019 -Cl 0.29-0.35 - Br 0.06-0.12 -PbO 0.1-0.15 - 在0.4mm的横截面中显示出超过90%的透明透光率,在25℃的温度下变暗的透光率低于约45%,更暗的透光率低于 在约40℃的温度下为约57%,在约5分钟的温度下为半衰退时间。

    Optical and ophthalmic glasses
    5.
    发明授权
    Optical and ophthalmic glasses 失效
    光学和眼科眼镜

    公开(公告)号:US4742028A

    公开(公告)日:1988-05-03

    申请号:US876933

    申请日:1986-06-20

    IPC分类号: C03C3/068 C03C4/00 C03C3/066

    摘要: This invention is concerned with a glass for optical and/or ophthalmic applications having an index of refraction between about 1.78-1.82, an Abbe number greater or equal to 31, and a density less than about 3.80 g/cm.sup.3 consisting essentially, expressed in terms of weight percent on the oxide basis, of:______________________________________ SiO.sub.2 15-30 CaO 15-28 B.sub.2 O.sub.3 2-17 SrO 0-11 SiO.sub.2 + B.sub.2 O.sub.3 24-36 BaO 0-11 Al.sub.2 O.sub.3 0-6.5 MgO + CaO + 16-33 SrO + BaO Li.sub.2 O 0-5 ZnO 0-11 Na.sub.2 O 0-5 La.sub.2 O.sub.3 16-30 K.sub.2 O 0-5 ZrO.sub.2 0-10 Li.sub.2 O + Na.sub.2 O + K.sub.2 O 0-6 Nb.sub.2 O.sub.5 5-26 MgO 0-6 TiO.sub.2 0-14. ______________________________________

    摘要翻译: 本发明涉及用于光学和/或眼科应用的玻璃,其折射率在约1.78-1.82之间,阿贝数大于或等于31,密度小于约3.80g / cm 3,主要由下列方式表示: 重量百分比为:-SiO2 15-30 CaO 15-28 -B2O3 2-17 SrO 0-11 -SiO2 + B2O3 24-36 BaO0-11-Al2O3 0-6.5 MgO + CaO + 16- 33 - SrO + BaO -Li2O 0-5 ZnO 0-11 -Na2O 0-5 La2O3 16-30 -K2O 0-5 ZrO2 0-10 -Li2O + Na2O + K2O 0-6 Nb2O5 5-26 -MgO 0-6 TiO2 0-14。 -

    Low PbO-containing glass for electrical devices
    6.
    发明授权
    Low PbO-containing glass for electrical devices 失效
    用于电气设备的低含PbO玻璃

    公开(公告)号:US4608351A

    公开(公告)日:1986-08-26

    申请号:US698408

    申请日:1985-02-05

    IPC分类号: C03C3/102 C03C3/105 C03C3/108

    CPC分类号: C03C3/102 C03C3/105

    摘要: The invention relates to the glass industry. It concerns glasses of low lead content characterized in being prepared from glass forming batches consisting essentially, in weight percent on the oxide basis of:______________________________________ SiO.sub.2 66-70 BaO 5-9.5 B.sub.2 O.sub.3 0-3 PbO 1.5-5 Al.sub.2 O.sub.3 2-4.5 MgO + CaO 0-3.5 Li.sub.2 O 0.5-1.6 As.sub.2 O.sub.3 + Sb.sub.2 O.sub.3 0-1 Na.sub.2 O 7-9.5 BaO + MgO + CaO 8-11 K.sub.2 O 5-8.5 Li.sub.2 O + Na.sub.2 O + K.sub.2 O 14.5-17 Na.sub.2 O:K.sub.2 O

    摘要翻译: 本发明涉及玻璃工业。 它涉及低铅含量的玻璃,其特征在于由玻璃成型批次制备,基本上以以氧化物为基准的重量百分比组成:-SiO 2 66-70 BaO 5-9.5 -B 2 O 3 0-3 PbO 1.5-5-Al 2 O 3 2-4.5 MgO + CaO 0-3.5 -Li2O 0.5-1.6 As2O3 + Sb2O3 0-1 -Na2O 7-9.5 BaO + MgO + CaO 8-11-K2O 5-8.5 Li2O + Na2O + K2O 14.5-17 -Na2O:K2O <1.7〜 本发明的具体应用是制造诸如灯泡的电气装置。

    Glasses for ophthalmic applications
    7.
    发明授权
    Glasses for ophthalmic applications 失效
    用于眼科应用的眼镜

    公开(公告)号:US4565791A

    公开(公告)日:1986-01-21

    申请号:US630094

    申请日:1984-07-12

    摘要: This invention is concerned with the production of glasses suitable for ophthalmic applications having refractive indices of 1.523.+-.0.004, Abbe number between 51-59, densities less than 2.43 g/cm.sup.3, transmissions at 400 nm in 2 mm thickness greater than 89%, and a UV cutoff between 310-335 nm, said glasses consisting essentially, in weight percent on the oxide basis, of:______________________________________ SiO.sub.2 49-71 Li.sub.2 O + Na.sub.2 O + K.sub.2 O 8-20 B.sub.2 O.sub.3 5-26 TiO.sub.2 1.8-6 Al.sub.2 O.sub.3 0-14 ZrO.sub.2 0-5.5 Li.sub.2 O 0-4 As.sub.2 O.sub.3 and/or Sb.sub.2 O.sub.3 0-0.7 Na.sub.2 O 0-16 Cl and/or Br 0-1 K.sub.2 O 0-20 CaO and/or MgO 0-4 and/or ZnO and/or BaO ______________________________________

    摘要翻译: 本发明涉及适用于眼科应用的眼镜的制备,其折射率为1.523 +/- 0.004,阿贝数在51-59之间,密度小于2.43g / cm 3,在400nm处的2mm厚度的透射率大于89% ,并且在310-335nm之间的UV截止值,所述玻璃基本上以氧化物为基准重量百分比为:-SiO 2 49-71 Li 2 O + Na 2 O + K 2 O 8-20-B 2 O 3 5-26 TiO 2 1.8-6-Al 2 O 3 0-14 ZrO 2 0-5.5-Li 2 O 0 -4 As 2 O 3和/或Sb 2 O 3 0-0.7-Na 2 O 0-16 Cl和/或Br 0-1-K 2 O 0-20 CaO和/或MgO 0-4 - 和/或 ZnO和/或BaO-

    Chemically durable, high index, low density glasses
    8.
    发明授权
    Chemically durable, high index, low density glasses 失效
    化学耐用,高指数,低密度眼镜

    公开(公告)号:US4839314A

    公开(公告)日:1989-06-13

    申请号:US190839

    申请日:1988-05-06

    IPC分类号: C03C3/068

    CPC分类号: C03C3/068 Y10S501/903

    摘要: This invention is directed to the production of glasses especially suitable for use as ophthalmic lenses which exhibit indices of refraction between about 1.699-1.703, Abbe numbers equal to or greater than 41.0, densities less than 3.25 g/cm.sup.3, and good resistance to attack by acids. The glasses are essentially free of Al.sub.2 O.sub.3 and consist essentially, in weight percent on the oxide basis, of:______________________________________ SiO.sub.2 33-37 CaO 8-9.5 B.sub.2 O.sub.3 7.5-13 SrO 2-4 SiO.sub.2 + B.sub.2 O.sub.3 44-48 La.sub.2 O.sub.3 12.3-14.5 Li.sub.2 O 5-8 ZrO.sub.2 4-6 Na.sub.2 O 0-2.5 Nb.sub.2 O.sub.5 8-10.5 K.sub.2 O 0-2 TiO.sub.2 5-7 Li.sub.2 O + Na.sub.2 O + K.sub.2 O 5-8 As.sub.2 O.sub.3 0-0.8. ______________________________________

    摘要翻译: 本发明涉及特别适合用作眼科镜片的眼镜的制造,所述眼镜片的屈光指数在约1.699-1.703之间,阿贝数等于或大于41.0,密度小于3.25g / cm 3,并且具有良好的抵抗 酸。 玻璃基本上不含Al 2 O 3并且基本上以氧化物为基准的重量百分数:-SiO 2 33-37 CaO 8-9.5 -B 2 O 3 7.5-13 SrO 2-4 -SiO 2 + B 2 O 3 44-48 La 2 O 3 12.3-14.5 -Li2O 5-8 ZrO2 4-6 -Na2O 0-2.5 Nb2O5 8-10.5-K2O 0-2 TiO2 5-7 -Li2O + Na2O + K2O 5-8 As2O3 0-0.8。 -

    Moldable fluorophosphate glasses containing Nb.sub.2 O.sub.5
    9.
    发明授权
    Moldable fluorophosphate glasses containing Nb.sub.2 O.sub.5 失效
    含有Nb2O5的可成型氟磷酸盐玻璃

    公开(公告)号:US4433062A

    公开(公告)日:1984-02-21

    申请号:US437354

    申请日:1982-10-28

    IPC分类号: C03C3/247 C03C3/16 C03C3/18

    摘要: The present invention is directed to fluorophosphate glasses containing about 3-21.5% Nb.sub.2 O.sub.5 and exhibiting softening points below 500.degree. C. The inventive glasses contemplate two general composition areas in weight percent:______________________________________ P.sub.2 O.sub.5 35-46 P.sub.2 O.sub.5 20-35 Al.sub.2 O.sub.3 3.5-6.5 Li.sub.2 O 0.5-5 Li.sub.2 O 0.8-3.0 Na.sub.2 O 0-10 Na.sub.2 O 3-10 Li.sub.2 O + Na.sub.2 O 0.5-10 Li.sub.2 O + Na.sub.2 O 5-10.5 PbO 0-40 BaO 18-44 Sb.sub.2 O.sub.3 0-25 CaO 0-12 PbO + Sb.sub.2 O.sub.3 20-50 SrO 0-15 BaO 0-20 MgO 0-7 Al.sub.2 O.sub.3 0-5 BaO + CaO + SrO + MgO 28-47 Nb.sub.2 O.sub.5 13-21.5 CaO + SrO + MgO

    摘要翻译: 本发明涉及含有约3-21.5%Nb 2 O 5并且软化点低于500℃的氟磷酸盐玻璃。本发明的眼镜考虑了以重量百分比计的两个总体组成面积:-P 2 O 5 35-46 P 2 O 5 20-35 -Al 2 O 3 3.5-6.5 Li2O 0.5-5 -Li2O 0.8-3.0 Na2O 0-10 -Na2O 3-10 Li2O + Na2O 0.5-10 -Li2O + Na2O 5-10.5 PbO 0-40 -BaO 18-44 Sb2O3 0-25 -CaO 0-12 PbO + Sb2O3 20-50 -SrO 0-15 BaO 0-20 -MgO 0-7 Al2O3 0-5 -BaO + CaO + SrO + MgO 28-47 Nb2O5 13-21.5 -CaO + SrO + MgO <15F 1-12 -Nb2O5 3-8.5 -F 4.5-8 -

    Germanium-containing glass of high infrared transmission and low density
    10.
    发明授权
    Germanium-containing glass of high infrared transmission and low density 失效
    含锗玻璃的高透光率和低密度

    公开(公告)号:US4385128A

    公开(公告)日:1983-05-24

    申请号:US335647

    申请日:1981-12-30

    摘要: This invention is directed to the production of glasses having a density of less than 3.26 g/cm.sup.3, a .beta..sub.OH value less than 0.030 mm.sup.-1, and, in a thickness of 2 mm, a transmission of at least about 80% at a wavelength of 4.0 microns and at least about 50% at a wavelength of 5 microns, which have base compositions within the alkali metal oxide-CaO-Al.sub.2 O.sub.3 -GeO.sub.2 -F and/or Cl field consisting essentially, expressed in terms of weight percent on the oxide basis, of______________________________________ GeO.sub.2 36-55 Al.sub.2 O.sub.3 18-31 CaO 10-25 Li.sub.2 O 0-5 K.sub.2 O and/or Na.sub.2 O and/or Li.sub.2 O 7-20 Al.sub.2 O.sub.3 + 1.5 (K.sub.2 O and/or Na.sub.2 O and/or Li.sub.2 .gtoreq.40 F and/or Cl 0.1-4. ______________________________________

    摘要翻译: 本发明涉及密度小于3.26g / cm 3,βOH值小于0.030mm-1的玻璃的制备,并且在厚度为2mm的情况下,制备至少约80%的透镜 波长为4.0微米,至少约50%,其波长为5微米,其碱金属氧化物 - CaO-Al 2 O 3 -GeO 2 -F和/或Cl场中的碱性组成基本上由以下重量百分数表示: 氧化物基,-GeO 2 36-55 -Al 2 O 3 18-31 -CaO 10-25 -Li2O 0-5 -K 2 O和/或Na 2 O和/或Li 2 O 7-20 -Al 2 O 3 + 1.5(K 2 O和/或Na 2 O和/或 Li2O)> / = 40 -F和/或Cl 0.1-4。 -