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    • 32. 发明授权
    • Method of fabricating graded-index optical fiber lenses
    • 制造渐变折射率光纤透镜的方法
    • US07013678B2
    • 2006-03-21
    • US10247101
    • 2002-09-19
    • David J. DiGiovanniWilliam A. ReedAndrew D. YablonMan F. Yan
    • David J. DiGiovanniWilliam A. ReedAndrew D. YablonMan F. Yan
    • C03B37/018
    • G02B6/0281C03B37/01228C03B2201/31C03B2203/14C03B2203/26C03B2203/42G02B6/32
    • A GRIN fiber lens is fabricated by the steps of providing a graded index glass preform, thinning the graded index preform to remove a sufficient thickness of the graded glass to establish a desired Δn, and drawing a graded index optical fiber from the thinned graded index preform. Thinning, in this context, refers to removal of graded index glass from the outside of the graded index preform so as to reduce its outer diameter. The thinning thus changes Δn which is the refractive index difference between the center of the preform and its outer surface. The graded index preform can be provided by MCVD deposition followed by removal of the starting tube glass, by OVD deposition, by VAD, or by ion exchange fabrication. The thinned graded index preform is advantageously annealed before drawing in order to minimize ripple. And, in a variation of the process, an overcladding can be applied over the thinned graded preform before draw for further adjustment or control of the Δn.
    • 通过以下步骤制造GRIN纤维透镜:提供渐变折射率玻璃预成型件,使渐变折射率预成型件变薄以去除足够厚度的渐变玻璃以建立所需的Deltan,并从减薄的渐变折射率预成型件 。 在本文中,变薄是指从分级折射率预成型件的外部去除渐变的折射率玻璃,从而减小其外径。 变薄因此改变Deltan,Deltan是预成型件的中心与其外表面之间的折射率差。 分级折射率预成型件可以通过MCVD沉积提供,然后通过OVD沉积,VAD或通过离子交换制造去除起始管玻璃。 减薄的渐变折射率预成型件在拉伸之前有利地被退火,以使纹波最小化。 而且,在该过程的变化中,可以在拉伸之前在薄化的梯度预成型件上施加外包以进一步调节或控制Deltan。
    • 38. 发明授权
    • Method and apparatus for combustion of diverse materials and heat
utilization
    • 不同材料和热利用的燃烧方法和装置
    • US4583468A
    • 1986-04-22
    • US518219
    • 1983-07-28
    • Leland M. ReedWilliam A. ReedWalter C. Saeman
    • Leland M. ReedWilliam A. ReedWalter C. Saeman
    • F23B30/04C10G1/02F23B99/00F23G5/46F23C1/00
    • F23G5/46C10G1/02F23G2209/12F23G2209/24G01N2291/2693
    • A method and apparatus is disclosed for combustion of diverse materials, particularly combustible solids, liquids or gases, such as sewage sludge, refuse, coal, refinery sludge, tar sands, coal shale, coal tailings and spent foundry sand. A rotary combustion apparatus is employed which consists of a cylindrical drum, or other similar regularly shaped chamber, with a substantially horizontal axis of rotation including an ignition zone, a principal combustion zone, a falling temperature zone and a spent solids removal zone. The apparatus further includes solids transport chutes for forward and backward circulation of solids, arranged for the transfer of solids to or from one or more points. Feedstock may also be heated by recycled hot solids. The method and apparatus employs direct solids-to-gas contact established by lifting and cascading combustible solids through a hot gas stream.
    • 公开了一种用于不同材料,特别是可燃固体,液体或气体如污泥,垃圾,煤,炼油污泥,焦油砂,煤页岩,尾矿和废弃铸造砂的燃烧的方法和装置。 采用旋转燃烧装置,该旋转燃烧装置由圆柱形滚筒或其它类似的规则形状的腔室组成,具有基本上水平的旋转轴线,包括点火区域,主要燃烧区域,降落温度区域和废固体去除区域。 该装置还包括用于固体的向前和向后循环的固体输送滑槽,其被布置用于将固体转移到一个或多个点。 原料还可以通过再循环的热固体加热。 该方法和装置采用直接固体 - 气体接触,通过将可燃固体通过热气流提升和级联而建立。