LIGHTING DEVICE INCLUDING TRANSLUCENT COVER FOR DIFFUSING LIGHT FROM LIGHT SOURCE
    4.
    发明申请
    LIGHTING DEVICE INCLUDING TRANSLUCENT COVER FOR DIFFUSING LIGHT FROM LIGHT SOURCE 审中-公开
    包括用于从光源扩散光的透明盖的照明装置

    公开(公告)号:US20100124064A1

    公开(公告)日:2010-05-20

    申请号:US12619701

    申请日:2009-11-17

    IPC分类号: F21V7/00

    摘要: A lighting device includes a light source configured to radiate light toward a floor from a ceiling, a reflecting mirror provided around the light source, and shading angle setting element configured to define a range in which the light from the light source is radiated by setting a shading angle with respect to the light radiated from the light source. The light source, the reflecting mirror and the shading angle setting element are covered by a translucent cover. The translucent cover has an in-line transmittance. An in-line transmittance of the translucent cover of a position corresponding to an optical axis of the light source and an in-line transmittance of the translucent cover of a position deviated from the optical axis are different from each other.

    摘要翻译: 照明装置包括被配置为从天花板朝向地板辐射光的光源,设置在光源周围的反射镜,以及遮光角设定元件,其被配置为通过设定光源来限定来自光源的光的范围 相对于从光源照射的光的阴影角度。 光源,反射镜和遮光角设定元件被半透明盖覆盖。 透光罩具有直线透光率。 与光源的光轴对应的位置的半透明盖的直线透射率和偏离光轴的位置的半透明盖的直线透射率彼此不同。