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    • 21. 发明授权
    • Optical glass containing bismuth oxide
    • 含氧化铋的光学玻璃
    • US07998891B2
    • 2011-08-16
    • US11918714
    • 2006-04-27
    • Jie Fu
    • Jie Fu
    • C03C3/14C03C3/15C03C3/062C03C3/064C03C3/068
    • C03C3/14C03C3/062C03C3/064C03C3/066C03C3/068
    • Optical glass having a refractive index (nd) of 1.85 or greater, and an Abbe number (νd) falling within the range of 10 to 30, which is suited for molding by precision mold press is provided. The optical glass is characterized by including B2O3+SiO2 in an amount of 3 to 60%, Bi2O3 in an amount of 25 to 80%, RO+Rn2O in an amount of 5 to 60% (wherein R represents one or more selected from a group consisting of Zn, Ba, Sr, Ca, and Mg; and Rn represents one or more selected from a group consisting of Li, Na, K, and Cs), with each component in the range expressed in oxide-based mole percentage, and is characterized in that transparency in the visible region is high, and that the transition point (Tg) is 480° C. or lower. The optical glass is characterized by having a spectral transmittance of 70% or greater at a wavelength of 600 nm for a thickness of 10 mm.
    • 提供折射率(nd)为1.85以上的光学玻璃,并且适合于通过精密模压成型的阿贝数(&ngr; d)在10〜30的范围内。 光学玻璃的特征在于,含有3〜60%的B 2 O 3 + SiO 2,25〜80%的Bi 2 O 3,5〜60%的RO + Rn 2 O(其中R表示选自 由Zn,Ba,Sr,Ca和Mg组成的组; Rn表示选自Li,Na,K和Cs中的一种或多种),各组分的范围以氧化物基摩尔百分数表示, 其特征在于可视区域的透明度高,转变点(Tg)为480℃以下。 光学玻璃的特征在于在600nm的波长下的光谱透射率为70%以上,厚度为10mm。
    • 25. 发明申请
    • Heating apparatus and glass manufacturing method
    • 加热装置和玻璃制造方法
    • US20090193850A1
    • 2009-08-06
    • US12320584
    • 2009-01-29
    • Ryousuke Sakai
    • Ryousuke Sakai
    • C03B11/12C03B9/38C03B19/00
    • C03B5/26C03B7/096C03B7/12
    • The present invention aims to provide a heating apparatus that can sufficiently suppress the occurrence of striae and the deterioration of optical properties, and that can reduce the maintenance burden. A heating apparatus 10 that is used for heating a flow path 90 for flowing out the molten glass includes an inner wall 21 which forms an entry hole 29 that a tip 91 of the flow path 90 can enter, heating portions 30 for heating the inner wall 21, and a high radiation portion 40 that is made of a high emissivity material. The high radiation portion 40 is arranged so as to face the tip 91 of the flow path 90 as well as a lower part thereof with a space therebetween when the heating apparatus 10 is used.
    • 本发明的目的在于提供一种可以充分抑制条纹的发生和光学性能劣化的加热装置,能够降低维护负担。 用于加热用于流出熔融玻璃的流路90的加热装置10包括形成流路90的末端91可以进入的入口孔29的内壁21,用于加热内壁的加热部30 21以及由高发射率材料制成的高辐射部分40。 当使用加热装置10时,高辐射部分40被布置为面对流路90的尖端91以及其下部,其间具有空间。
    • 26. 发明申请
    • Optical Glass
    • 光学玻璃
    • US20090131240A1
    • 2009-05-21
    • US12083016
    • 2006-09-08
    • Koji Shimizu
    • Koji Shimizu
    • C03C3/068C03C3/04
    • C03C3/068
    • A glass composition that simultaneously has a low temperature coefficient of refractive index and a good light transmittance, being suitable for use in environments of intense temperature change. There is provided an optical glass containing SiO2, B2O3 and La2O3, which has a temperature coefficient (20° to 40° C.) of relative refractive index (546.07 nm) of 10.0×10−6 (° C.−1) or below. Further, there is provided an optical glass mentioned above having a temperature coefficient (20° to 40° C.) of relative refractive index (546.07 nm) of 4.6×10−6 (° C.−1) or below. Still further, there is provided an optical glass mentioned above having an internal transmittance (τ;10 mm) at 400 nm of 80% or higher
    • 同时具有低的折射率温度系数和良好透光率的玻璃组合物,适用于剧烈变化的环境。 提供了含有相对折射率(546.07nm)为10.0×10 -6(℃-1)以下的温度系数(20〜40℃)的SiO 2,B 2 O 3,La 2 O 3的光学玻璃。 此外,提供了上述的相对折射率(546.07nm)的温度系数(20〜40℃)为4.6×10 -6(℃〜1)以下的光学玻璃。 此外,提供了上述在400nm处具有80%以上的内部透射率(tau; 10mm)的光学玻璃