Projection-type display device
    1.
    发明授权
    Projection-type display device 失效
    投影式显示装置

    公开(公告)号:US5871266A

    公开(公告)日:1999-02-16

    申请号:US793538

    申请日:1997-02-25

    摘要: Disclosed is an inexpensive, bright, compact, lightweight, high-definition projection-type display device that has a comparatively simple structure but satisfies demands for oblique projection, uniform illumination, a deep focal depth, and magnified projection over a short distance. The display device comprises a light source (1a); an illumination portion (1) consisting of a group of collection angle control components, which comprises at least one optical surface (1c) for receiving a principal light ray generated from the imaginary center of the light source (1a) and controlling the solid collection angle thereof, and a group of luminous flux control components, which comprises at least two optical surfaces which are an optical surface (1d) mainly having a spatial distribution control function over the principal light ray in a virtual plane provided perpendicular to the direction of propagation of the principal light ray emitted from the group of �luminous flux! control components and an optical surface (1e) for receiving a principal light ray from the surface and mainly having a function of controlling the direction thereof; an image creation portion (2) for creating an original image by selectively reflecting or transmitting luminous flux from the illumination portion (1) and for ensuring that the cone angle of the luminous flux contributing to the image creation does not greatly change before and after; and an imaging portion (3) for collecting the luminous flux emitted from the image creation portion and creating a secondary image on a screen.

    摘要翻译: PCT No.PCT / JP96 / 01767 Sec。 371日期1997年2月25日 102(e)1997年2月25日PCT PCT 1996年6月26日PCT公布。 公开号WO97 / 01787 日期1997年1月16日公开是一种廉价,明亮,紧凑,重量轻,高清晰度投影型显示设备,具有比较简单的结构,但满足倾斜投影,均匀照明,深焦深度和放大投影的要求 短距离。 显示装置包括光源(1a); 由一组收集角度控制部件组成的照明部分(1),其包括用于接收从光源(1a)的假想中心产生的主光线的至少一个光学表面(1c),并控制固体收集角 以及一组光通量控制部件,其包括至少两个光学表面,所述至少两个光学表面是主要在垂直于传播方向设置的虚拟平面中的主光线上的空间分布控制功能的光学表面(1d) 从[光束]控制部件组发射的主光线和用于从表面接收主光线的光学面(1e),主要具有控制其方向的功能; 用于通过选择性地反射或发射来自照明部分(1)的光束来创建原始图像的图像创建部分(2),并且用于确保有助于图像创建的光束的锥角在前后没有大的变化; 以及用于收集从图像创建部分发射的光束并在屏幕上创建次要图像的成像部分(3)。

    Flow generating apparatus and method of manufacturing the apparatus
    2.
    发明授权
    Flow generating apparatus and method of manufacturing the apparatus 失效
    流动发生装置及其制造方法

    公开(公告)号:US5297926A

    公开(公告)日:1994-03-29

    申请号:US772371

    申请日:1991-11-01

    申请人: Masataka Negishi

    发明人: Masataka Negishi

    摘要: Movement of a fluid such as air is produced by rotating about a rotational axis a plurality of flow generating plates arranged in parallel with clearances therebetween. The clearances between adjacent flow generating plates for producing the movement of the fluid most effectively only by an adhesion of the fluid to the flow generating plates are set to be twice a value of a distance of an intermediate portion between the surface of the flow generating plate contacting a portion of the fluid in a close boundary layer which is rotated and moved substantially together with the flow generating plate and a remote fluid boundary layer which is substantially not influenced by centrifugal force due to the rotation of the flow generating plate. In the case of air, the clearances are about 0.5 mm. It is preferred to form the flow generating plate so as to have a waved surface for improving the flow generating efficiency.

    摘要翻译: PCT No.PCT / JP91 / 00281 Sec。 371日期1991年11月1日 102(e)1991年11月1日PCT 1991年3月2日PCT公布。 公开号WO91 / 13257 日期1991年9月5日。流体如空气的运动通过围绕旋转轴线旋转而产生,多个流动发生板与它们之间的间隙平行设置。 用于仅通过流体向流动发生板的粘附而最有效地产生流体运动的相邻流动产生板之间的间隙被设定为流动产生板的表面之间的中间部分的距离的两倍 使一个接近边界层中的一部分流体接触,该边界层基本上与流动产生板一起旋转和移动,以及由于流动产生板的旋转基本上不受离心力影响的远程流体边界层。 在空气的情况下,间隙约为0.5mm。 优选形成流动发生板以具有用于提高流动产生效率的波形表面。