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    • 1. 发明授权
    • Optical switching device
    • 光开关器件
    • US4648687A
    • 1987-03-10
    • US431020
    • 1982-09-30
    • Taizo YoshidaMasaaki MoriJiro KoyamaMasamitsu Haruna
    • Taizo YoshidaMasaaki MoriJiro KoyamaMasamitsu Haruna
    • G02F1/01G02B6/10
    • G02F1/0147
    • An optical switching device for switching the transmission of light waves is provided. The main feature of the present invention is the usage of a light-transmitting, crystalline material having a temperature dependent index of refraction. That is, the light transmission condition is altered by controlling the temperature of such a material. In one form of the present invention, a main waveguide and a branched waveguide are provided and light waves are switched between the main and branched waveguides by controlling the temperature of a particlar portion of the intersection region. In another form of the present invention, a pair of waveguides is oppositely arranged in an end-to-end relation with a gap therebetween, and a switching region is defined in the gap. When the switching region is heated, the waveguides are optically connected; whereas, they are optically disconnected at normal temperature condition.
    • 提供一种用于切换光波传输的光开关装置。 本发明的主要特征是使用具有温度依赖折射率的透光结晶材料。 也就是说,通过控制这种材料的温度来改变透光条件。 在本发明的一种形式中,提供主波导和分支波导,通过控制交叉区域的特征部分的温度,在主波导和分支波导之间切换光波。 在本发明的另一种形式中,一对波导以端对端的关系与它们之间的间隙相对地布置,并且间隙中限定了开关区域。 当开关区域被加热时,波导被光学连接; 而在常温条件下它们是光学断开的。
    • 4. 发明申请
    • FILTER MEDIUM AND METHOD OF MANUFACTURING THE SAME AND FILTER UNIT
    • 过滤介质及其制造方法和过滤器单元
    • US20100269464A1
    • 2010-10-28
    • US12742625
    • 2008-11-11
    • Masaaki MoriMasatoshi Suzuki
    • Masaaki MoriMasatoshi Suzuki
    • B01D39/20B32B37/04
    • B01D39/1692B01D69/12B01D71/36B01D2239/0654
    • Provided is a filter medium including a porous polytetrafluoroethylene (PTFE) membrane and a gas-permeable supporting member that are integrated to ensure sufficient stiffness, having excellent gas permeability, and providing excellent bonding between respective layers included in the filter medium. The gas-permeable supporting member includes: a substrate having gas-permeability; and a fiber layer that is placed on the substrate so as to be in contact with the porous PTFE membrane. The gas-permeable supporting member has a structure in which fibers of the fiber layer enter into the substrate and are entangled with the substrate so that the fiber layer is bonded to the substrate. The fiber layer contains polyolefin-containing fibers that are bonded to the porous membrane.
    • 提供了一种过滤介质,其包括多孔聚四氟乙烯(PTFE)膜和气体可渗透的支撑构件,其一体化以确保足够的刚度,具有优异的气体渗透性,并且在包含在过滤介质中的各个层之间提供优异的粘合。 透气性支撑构件包括:具有透气性的基板; 以及放置在基板上以与多孔PTFE膜接触的纤维层。 透气性支撑构件具有纤维层的纤维进入基板并与基板缠结的结构,使得纤维层与基板结合。 纤维层含有与多孔膜结合的含有聚烯烃的纤维。