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公开(公告)号：US20160258615A1
公开(公告)日：2016-09-08
申请号：US15031440
申请日：2014-11-04
CPC分类号： F21V33/006 , E04B1/8209 , E04B9/001 , E04B9/32 , F21S4/00 , F21S4/20 , F21V3/00 , F21V7/0008 , F21V7/06 , F21Y2101/00 , F21Y2115/10
摘要： An acoustic lighting tile (100) comprises a cavity (110) having a side wall (120) forming an opening in the cavity (110). An acoustic element (130) absorbs sound incident to the cavity (110). A light source carrier (140) is arranged along the side wall (120) and extends a first distance (D1) along a horizontal direction into the cavity (110). A light source (150) is mounted on the light source carrier (140) and emits light (L1, L2, L3) in a vertical main direction into the cavity (110), away from the opening of the cavity (110). A reflective surface (160) reflects at least a subset of the light (L1, L2, L3) emitted by the light source (150) towards the opening. A diffusing element (170) at least partially covers the opening at a second distance (D2) from the light source carrier (140) and diffuses light passing through the opening. The second distance (D2) is at least as large as the first distance (D1). The distance (D2) between the light source carrier (140) and the diffusing element (170) provides a mixing space which facilitates provision of a more uniform illumination.
摘要翻译： 声光砖（100）包括具有在空腔（110）中形成开口的侧壁（120）的空腔（110）。 声学元件（130）吸收入射到空腔（110）的声音。 光源载体（140）沿着侧壁（120）设置并沿着水平方向延伸到空腔（110）中的第一距离（D1）。 光源（150）安装在光源载体（140）上，并沿着垂直主方向将空气（L1，L2，L3）发射到空腔（110）中，远离空腔（110）的开口。 反射表面（160）将由光源（150）发射的光（L1，L2，L3）的至少一个子集反射向开口。 扩散元件（170）至少部分地以距离光源载体（140）的距离（D2）覆盖开口，并且扩散通过开口的光。 第二距离（D2）至少与第一距离（D1）一样大。 光源载体（140）和扩散元件（170）之间的距离（D2）提供了有助于提供更均匀照明的混合空间。
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公开(公告)号：US20190302344A1
公开(公告)日：2019-10-03
申请号：US16305948
申请日：2017-06-07
IPC分类号： F21V8/00
摘要： A lighting system comprises an elongate light guiding structure comprising a input edge miming along the length of the structure, and first and second side walls which extend between the input edge and a end face, at least one of which is stepped. The steps comprise at least a first step region which forms a total internal reflection surface for the light provided into the light guiding structure from the input edge such that light leaves the light guiding structure from the second side wall, and at least a second step region which forms a refracting interface for the light provided into the light guiding structure from the input edge such that light leaves the light guiding structure from the first side wall. In this way the use of refraction and total internal reflection is combined to enable flexibility in the control of the light output distribution as well as the appearance of the system. The lighting system for example comprises luminaire for ceiling mounting.
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公开(公告)号：US20170356626A1
公开(公告)日：2017-12-14
申请号：US15540498
申请日：2015-12-15
IPC分类号： F21V13/04 , F21S8/02 , F21S8/00 , F21V7/00 , F21Y2115/10 , F21Y2103/10
CPC分类号： F21V13/04 , F21S8/028 , F21S8/032 , F21S8/033 , F21V7/0008 , F21V7/005 , F21Y2103/10 , F21Y2115/10
摘要： The invention provides a lighting panel, for use for example within a modular surface system, comprising one or more strips of solid state lighting elements associated with a reflector structure. The lighting panel is adapted for improved uniformity of light intensity across the width of its output area. Lighting elements comprise two or more subsets, each subset adapted to collectively generate a different light intensity profile across the width of the panel output window. The subsets are selectively adapted to generate profiles which, when blended, mutually offset one another's deviations from some common mean intensity across the width of the output window, thereby generating a combined intensity profile of improved uniformity. Embodiments include arrangements in which subsets of lighting elements are adapted to have differing actual or virtual optical path lengths to the reflector surface. Also provided are embodiments further comprising an acoustically absorbing back surface, for providing an acoustic dampening function.
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