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    • 5. 发明授权
    • Projection-type display apparatus
    • 投影型显示装置
    • US06778228B2
    • 2004-08-17
    • US10217606
    • 2002-08-14
    • Osamu MurakamiAkitaka YajimaYoshitaka Itoh
    • Osamu MurakamiAkitaka YajimaYoshitaka Itoh
    • G02F11335
    • G02B27/149G02B27/1046G02B27/145G02F1/133536
    • A projection-type display apparatus of the invention aiming at solving the problem of heat generation caused by absorption of light by a polarizing means of a liquid crystal light valve. To overcome this problem, the projection-type display apparatus of the invention includes a light source, a light valve for modulating the light from the light source, and a projection optical means for projecting the light modulated by the light valve, with the light valve including a liquid crystal panel and a polarizing means, provided on the light source side of the liquid crystal panel, and the polarizing means being formed of a multi-layered film which primarily transmits one of two types of polarization axis component light beams and primarily reflects the other of the two types of polarization axis component light beams.
    • 本发明的投影式显示装置旨在解决由液晶光阀的偏振装置吸收光引起的发热问题。 为了克服这个问题,本发明的投影型显示装置包括光源,用于调制来自光源的光的光阀和用于将由光阀调制的光投射的投影光学装置,光阀 包括设置在液晶面板的光源侧的液晶面板和偏振装置,并且偏振装置由多层膜形成,该多层膜主要透射两种类型的偏振轴分量光束中的一种,并主要反射 两种类型的偏振轴分量光束中的另一种。
    • 10. 发明授权
    • Self-propelled pipe inspecting apparatus
    • 自走式管道检查装置
    • US4108004A
    • 1978-08-22
    • US831020
    • 1977-09-06
    • Osamu Murakami
    • Osamu Murakami
    • G01N27/82B01L99/00F17D5/00G01N27/90G01N29/04G01N29/26
    • B01L99/00F17D5/00G01N27/9093
    • Disclosed is a self-propelled pipe inspection apparatus suitable for use in inspecting a plurality of parallel and vertical pipes one by one, for the presence of faults such as cracking, corrosion and so on, by non-destructive testing method. The apparatus has fault detecting means which may be of conventional type, pipe cramping means adapted to cramp the pipe and a mobile carrier by which the fault detecting means and the pipe cramping means are carried. The mobile carriage has a power-driven running surface which may be a running surface of an endless belt and adapted to be pressed onto the pipe surface when the pipe is cramped by the cramping means. The cramping means comprise at least a pair of arms each of which having a bent end carrying a roller. Each arm is supported for free rotation around its longitudinal axis, so that the roller may be swung outwardly to clear the pipe, when the latter is brought into the space between the pair or arms. In the cramping state, as the running surface of the mobile carriage is driven, the apparatus as a whole moves up and down along the pipe, keeping a resilient contact with the latter. The fault detecting means are secured to the mobile carriage through a turn table for inspecting all circumferential parts of the pipe.
    • 公开了一种自行式管道检查装置,适用于通过非破坏性试验方法逐个检查多个平行和垂直管道,以防止诸如开裂,腐蚀等故障。 该装置具有可以是常规类型的故障检测装置,适于夹紧管道的管道夹紧装置和承载故障检测装置和管道夹紧装置的移动载体。 移动托架具有动力驱动的行进表面,其可以是环形带的运行表面,并且当管道被夹紧装置夹紧时适于被压在管道表面上。 夹紧装置包括至少一对臂,每个臂具有承载辊的弯曲端。 每个臂被支撑以围绕其纵向轴线自由旋转,使得当辊子被带入一对或双臂之间的空间时,辊可以向外摆动以使管道清除。 在夹紧状态下,随着可移动滑架的行进面被驱动,整个装置整体沿管道上下移动,保持与后者的弹性接触。 故障检测装置通过用于检查管道的所有圆周部分的转台固定到移动支架。