摘要:
There is provided an optical glass having high infrared transmittance and being useful as an on-vehicle infrared sensor and the like. An optical glass including, in expression of atomic %: Ge+Ga; 6% to 30%; S+Se+Te; 50% to 85%; and Ti; 0.001% to 0.5%, wherein a wavelength (λT10%) at a long-wavelength side end in which infrared transmittance in a glass plate of the optical glass converted to a thickness of 1 mm becomes 10% is 12 μm or more.
摘要:
There are provided a glass composition suitable for an optical conversion member containing phosphor particles low in heat resistance, an optical conversion member using the glass composition, and an illumination light source using the optical conversion member. A glass composition comprising, in mol % based on oxides, 5 to 35% of Bi2O3, 22 to 80% of B2O3, 10 to 48% of ZnO, and 0 to 4% of Al2O3, and not substantially containing SiO2, wherein a total amount of the Bi2O3 and the ZnO being 15% or more and less than 70%, an optical conversion member using the glass composition, an illumination light source using the optical conversion member, and a liquid crystal display device using the illumination light source are provided.
摘要翻译:提供一种适用于含有耐热性低的荧光体颗粒的光转换构件的玻璃组合物,使用该玻璃组合物的光转换构件和使用该光转换构件的照明光源。 一种玻璃组合物,其包含基于氧化物的摩尔%为5至35%的Bi 2 O 3,22至80%的B 2 O 3,10至48%的ZnO和0至4%的Al 2 O 3,并且基本上不含有SiO 2,其中总计 使用该玻璃组合物的光转换构件,使用该光转换构件的照明光源和使用该照明光源的液晶显示装置,提供Bi 2 O 3和ZnO的含量为15%以上且小于70% 。
摘要:
Provided is an optical glass suitable for an imaging lens or the like used for a vehicle-mounted camera exposed to harsh environment, having a high refractive index and high strength, excellent crack resistance, and a sufficiently low glass transition point and devitrification temperature. In the optical glass, nd is 1.70 or more and 2.10 or less, Tg is 500° C. or more and 630° C. or less, the devitrification temperature is 1300° C. or less, a specific gravity is 4.0 g/cm3 or less, a crack initiation load (CIL) is 20 gf or more, and a fracture toughness value (Kc) is 0.60 MPa·m1/2 or more.
摘要:
Provided is an optical glass suitable for an imaging lens or the like used for a vehicle-mounted camera exposed to harsh environment, having a high refractive index and high strength. The optical glass has a strengthened layer at a surface layer, and a depth of the strengthened layer is 1 μm or more from a surface of the optical glass, and a refractive index (nd) of the optical glass is 1.73 to 2.10.
摘要:
The present invention relates to a glass composition including, in terms of mol % on the basis of oxides: from 55 to 70% of SiO2, from 5 to 10% of Al2O3, from 0 to 0.5% of B2O3, from 3 to 15% of MgO, from 3 to 15% of CaO, from 2 to 10% of SrO, from 1 to 10% of BaO, from 0 to 3% of ZrO2, from 0 to 1.8% of Na2O, and from 0 to 1% of K2O, provided that MgO+CaO+SrO+BaO is from 20 to 35%, and Na2O+K2O is from 0 to 2%, in which the glass composition has a glass transition temperature of 680° C. or higher, an average thermal expansion coefficient of from 50×10−7 to 70×10−7/° C., and a temperature at which a viscosity is 102 dPa·s of 1,600° C. or lower.
摘要翻译:本发明涉及一种玻璃组合物,其以氧化物为基准的摩尔%:SiO 2 55-70%,Al 2 O 3 5%-10%,B 2 O 3 0%至5%,3%至15% 的MgO,3〜15%的CaO,2〜10%的SrO,1〜10%的BaO,0〜3%的ZrO 2,0〜1.8%的Na 2 O,0〜1% K 2 O,条件是MgO + CaO + SrO + BaO为20〜35%,Na2O + K2O为0〜2%,玻璃化转变温度为680℃以上,平均热 膨胀系数为50×10-7〜70×10-7 /℃,粘度为102dPa·s的温度为1600℃以下。
摘要:
Provided is an optical glass having a high refractive index, a low density, and good manufacturing properties. An optical glass having: a refractive index (nd) of 1.68 to 1.85; a density (d) of 4.0 g/cm3 or less; and a temperature where a viscosity of glass becomes log η=2 of 950 to 1200° C., and an optical component using the optical glass are provided. This optical glass has the high refractive index, the low density, and the good manufacturing properties, and is suitable as the optical glass of wearable equipment, for a vehicle mounting, for a robot mounting, and so on.