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    • 56. 发明授权
    • Hollow core photonic band gap infrared fibers
    • 空心光子带隙红外光纤
    • US06993230B2
    • 2006-01-31
    • US10632210
    • 2003-08-01
    • Jasbinder SangheraIshwar AggarwalLeslie B. ShawPablo C. PurezaFred KungBrian Cole
    • Jasbinder SangheraIshwar AggarwalLeslie B. ShawPablo C. PurezaFred KungBrian Cole
    • G02B6/02
    • G02B6/02328C03B37/0122C03B37/01274C03B2201/86C03B2201/88C03B2203/12C03B2203/14C03B2203/16C03B2203/42C03C11/00C03C13/043G02B6/02347Y10T428/265Y10T428/2913
    • This invention pertains to a hollow core photonic band gap chalcogenide optical glass fiber and to a fabrication method for making the fiber. The fiber, which is 80-1000 microns in outside diameter, is characterized by a solid glass circumferential region and a structured region disposed centrally within the solid region, the structured region includes a hollow core of 1 micron to several hundreds of microns in diameter surrounded by a plurality of parallel hollow capillaries extending parallel to the core, the core being centrally and longitudinally located within the fiber. Ratio of open space to glass in the structured region is 30-99%. The fabrication method includes the steps of providing a mold, placing chalcogenide micro-tubes around the mold, stacking chalcogenide micro-canes around the stacked micro-tubes, fusing the micro-tubes and the micro-canes to form a preform, removing the mold and drawing the preform to obtain the fiber. In an alternative fabrication method, the fiber is made by extruding flowing chalcogenide glass through suitably made plate to form a preform and then drawing the preform to form the fiber.
    • 本发明涉及中空光子带隙硫族化物光学玻璃纤维及其制造方法。 外径为80-1000微米的纤维的特征在于固体玻璃圆周区域和设置在固体区域中心的结构区域,该结构区域包括直径为1微米至几百微米的中空芯体 通过平行于芯部延伸的多个平行的中空毛细管,芯部居中并且纵向位于纤维内。 结构区域的开放空间与玻璃的比例为30-99%。 该制造方法包括以下步骤:提供模具,将硫族化物微管放置在模具周围,在堆叠的微管周围堆放硫族化物微型手杖,将微管和微型手杖熔合以形成预成型件,移除模具 并拉制预制件以获得纤维。 在替代的制造方法中,纤维通过将流动的硫族化物玻璃通过适当制成的板挤出以形成预成型件然后拉伸预制件以形成纤维而制成。
    • 57. 发明授权
    • Alkaline earth modified germanium sulfide glass
    • 碱土改性硫化锗玻璃
    • US5599751A
    • 1997-02-04
    • US396292
    • 1995-02-28
    • Barry B. HarbisonJohn M. JewellCelia I. MerzbacherIshwar D. Aggarwal
    • Barry B. HarbisonJohn M. JewellCelia I. MerzbacherIshwar D. Aggarwal
    • C03C3/32C03C4/10C03C13/04
    • C03C4/10C03C13/043C03C3/321Y10S501/904
    • A sulfide glass with improved mechanical and optical properties such as ended transmission in the infrared region of radiation having wavelengths of up to about 15 microns; Tg in the region of 410.degree.-550.degree. C.; and thermal stability of 100.degree.-300.degree. C. based on the difference between T.sub.g and T.sub.x, comprising, on mol basis, 20-90% germanium sulfide, 0-60% gallium sulfide, and 5-60% of at least one modifier in sulfide form. A process for improving mechanical and optical properties of a sulfide glass based on gallium sulfide and/or germanium sulfide comprises the steps of mixing glass components, including a modifier in elemental or sulfide form; melting the glass components to form a molten mixture; cooling the molten glass mixture to a solid state; annealing the solid glass; and cooling the annealed glass to about room temperature. The glass components can be in elemental form or in the form of sulfides, and if in elemental form, then sufficient amount of sulfur is added to form sulfides of the glass components.
    • 具有改进的机械和光学特性的硫化物玻璃,例如在具有高达约15微米的波长的辐射的红外区域中的扩展传播; 在410°-550℃的范围内的Tg。 和基于Tg和Tx之间的差异的100-300℃的热稳定性,基于摩尔数,包括20-90%的硫化锗,0-60%的硫化镓和5-60%的至少一种改性剂 呈硫化物形式。 一种改善硫化镓和/或硫化锗硫化物玻璃的机械和光学性质的方法包括以下步骤:将元素或硫化物形式的改性剂混合在一起; 熔化玻璃组分以形成熔融混合物; 将熔融玻璃混合物冷却至固态; 退火固体玻璃; 并将退火玻璃冷却至约室温。 玻璃组分可以是元素形式或硫化物形式,如果是元素形式,则加入足够量的硫以形成玻璃组分的硫化物。