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    Method of and assembly for measuring equivalent sphere illumination
    1.
    发明授权
    Method of and assembly for measuring equivalent sphere illumination 失效
    测量等效球体照明的方法和装配

    公开(公告)号：US4055383A

    公开(公告)日：1977-10-25

    申请号：US659616

    申请日：1976-02-20

    申请人： Robert Dale Zeller ,  Daryl Dean Sullivan

    发明人： Robert Dale Zeller ,  Daryl Dean Sullivan

    IPC分类号： G01J1/00 ,  G01J1/10

    CPC分类号： G01J1/00

    摘要： The measurement of equivalent sphere illumination on a given task located in a lighted area is disclosed herein. This is accomplished by comparing a movably mounted task in the lighted area with the same task in a control area illuminated with sphere illumination. The task is viewed alternatively in the two areas in accordance with specific optical procedures to determine the equivalent sphere illumination on the task in the lighted area.

    摘要翻译： 本文公开了位于照明区域中的给定任务上的等效球体照明的测量。 这是通过将照亮区域中的可移动安装的任务与用球体照明照明的控制区域中的相同任务进行比较来实现的。 根据具体的光学过程在两个区域中交替地观察任务，以确定在照明区域中的任务上的等效球体照明。

    Luminaire for lighting a sign and method
    2.
    发明授权
    Luminaire for lighting a sign and method 失效
    照明灯具的标志和方法

    公开(公告)号：US4037341A

    公开(公告)日：1977-07-26

    申请号：US387879

    申请日：1973-08-13

    申请人： Herbert Arnold Odle ,  Daryl Dean Sullivan ,  Kurt Franck

    发明人： Herbert Arnold Odle ,  Daryl Dean Sullivan ,  Kurt Franck

    IPC分类号： G09F13/02 ,  G09F13/00

    CPC分类号： G09F13/02

    摘要： A sign lighting arrangement including a luminaire located in a predetermined position in front of a rectangular sign is disclosed herein. The luminaire includes a light source supported by an opaque housing, the uppermost edges of which lie in a common plane with the light source and the bottom edge of the sign. In this manner, direct light from the light source is prevented from passing under the sign (positive bottom edge cut-off). The luminaire also includes a reflector having lateral edge portions located in a fixed position relative to the luminaire's light source and the sign. The reflector and particularly these lateral edge portions are specifically contoured so that the lateralmost vertical edges of the reflected light substantially coincide with the side edges of the sign. Thus no reflected light passes beyond these side edges (positive side edge cut-off). A refractor is provided one purpose of which is to aid in achieving positive side edge cut-off.

    摘要翻译： 本文公开了包括位于矩形符号前面的预定位置的照明器的标志照明装置。 灯具包括由不透明壳体支撑的光源，其最上边缘与光源和标志的底部边缘在共同的平面中。 以这种方式，防止来自光源的直射光在符号（正底边缘截止）下通过。 照明器还包括反射器，其具有相对于照明器的光源和符号位于固定位置的侧边缘部分。 反射器，特别是这些横向边缘部分具有特定的轮廓，使得反射光的最侧面的垂直边缘基本上与符号的侧边缘重合。 因此，没有反射光超过这些侧边缘（正侧边缘截止）。 提供折射器的一个目的是帮助实现正侧边缘截止。