Molded part and method of making the same
    6.
    发明授权
    Molded part and method of making the same 失效
    成型件及其制作方法

    公开(公告)号:US4728557A

    公开(公告)日:1988-03-01

    申请号:US375584

    申请日:1982-05-06

    摘要: A molded part including a metal plate formed with a plurality of through holes, a plurality of resin portions connected to a resin filled in the through holes and protruding on opposite sides of the metal plate, the resin portions having a planar cross section larger than a cross section of the through holes, and a plurality of resin components each integrally formed with one of the resin portions. The resin components are secured in place on the metal plate separate from and independent of each other by virtue of residual thermal stress produced by the difference in the coefficient of thermal expansion between the resin portions and the metal plate in such a manner that a radially oriented residual thermal stress in each resin portion is symmetrical with respect to a center axis of one of the resin components.

    摘要翻译: 一种模制部件,包括形成有多个通孔的金属板,多个树脂部分连接到填充在通孔中并在金属板的相对侧上突出的树脂,树脂部分具有大于 通孔的横截面,以及与树脂部中的一个一体形成的多个树脂部件。 由于由树脂部分和金属板之间的热膨胀系数的差异产生的残余热应力,树脂部件被固定在金属板上的位置上并且彼此独立,使得径向定向 每个树脂部分中的残余热应力相对于一个树脂部件的中心轴对称。

    Chassis for video tape recorder
    7.
    发明授权
    Chassis for video tape recorder 失效
    录像机底盘

    公开(公告)号:US4445159A

    公开(公告)日:1984-04-24

    申请号:US324670

    申请日:1981-11-24

    摘要: A chassis for video tape recorder molded integrally with a fiber-reinforced plastic composition is light in weight and can meet the requirements for attainment of high precision. It is possible to obtain a chassis with even higher precision and higher rigidity while preventing deformation with time as well as creep deformation, by properly selecting the components of the composition, the number and the position of the gates, and/or the reinforcing measures. In case of using glass fiber as the reinforcing fiber component of the composition, it is desirable to use the type in which 5% by weight or more of the whole glass fiber component is occupied by those glass fibers which have a length of over 1.0 mm and a diameter of 15 .mu.m or less.

    摘要翻译: 用于与纤维增强塑料组合物整体成型的录像机的底盘重量轻,可以满足达到高精度的要求。 通过适当地选择组合物的组分,门的数量和位置以及/或加强措施,可以获得具有更高精度和更高刚度的底盘,同时防止随时间变形和蠕变变形。 在使用玻璃纤维作为组合物的增强纤维成分的情况下,优选使用长度超过1.0mm的玻璃纤维占据整个玻璃纤维成分的5重量%以上的类型 直径为15μm以下。

    Semiconductor laser element having tensile-strained quantum-well active layer
    8.
    发明授权
    Semiconductor laser element having tensile-strained quantum-well active layer 失效
    具有拉伸应变量子阱活性层的半导体激光元件

    公开(公告)号:US07362786B2

    公开(公告)日:2008-04-22

    申请号:US11073521

    申请日:2005-03-08

    申请人: Hideki Asano

    发明人: Hideki Asano

    IPC分类号: H01S5/00

    摘要: In a semiconductor laser element, a lower cladding layer of AlGaInP of the first conductive type, a lower optical waveguide layer of AlGaInP, a quantum-well active layer of InGaP, an upper optical waveguide layer of AlGaInP, and an upper cladding layer of AlGaInP of the second conductive type are formed in this order on a substrate of GaAs of the first conductive type. The degree of mismatch Δa/a with the substrate and the thickness dw of the quantum-well active layer satisfy the conditions, −0.6%≦Δa/a≦−0.3% and 10 nm≦dw≦20 nm. In addition, the resonator length Lc and the reflectances Rf and Rr of the opposite end facets satisfy the conditions, Lc≧400 μm and Rf×Rr≧0.5.

    摘要翻译: 在半导体激光元件中,第一导电类型的AlGaInP的下包层,AlGaInP的下光波导层,InGaP的量子阱有源层,AlGaInP的上光波导层和AlGaInP的上包层 的第二导电类型的第一导电类型的GaAs衬底上依次形成。 量子阱有源层的失配度Δa/ a与衬底和厚度dw满足条件,-0.6%<=Δa/ a <= -0.3%和10nm <= dw <= 20nm。 此外,相对端面的谐振器长度Lc和反射率Rf和Rr满足条件Lc> =400μm和RfxRr≥0.5。