基本信息:
- 专利标题： LIGHTING DEVICE HAVING A LENS WITH DISCONTINUOUS FACES
- 专利标题（中）：照明装置具有不连续面的镜片
- 申请号：EP17177383.1 申请日：2015-05-27
- 公开(公告)号：EP3242152A1 公开(公告)日：2017-11-08
- 发明人： RADL, Bruce , WANG, Zhuo , SANDHU, Yvetta Pols
- 申请人： Osram Sylvania Inc.
- 申请人地址： 200 Ballardvale Street Wilmington, MA 01887 US
- 专利权人： Osram Sylvania Inc.
- 当前专利权人： Osram Sylvania Inc.
- 当前专利权人地址： 200 Ballardvale Street Wilmington, MA 01887 US
- 代理机构： Viering, Jentschura & Partner mbB Patent- und Rechtsanwälte
- 优先权： US201462003694P 20140528
- 主分类号： G02B19/00
- IPC分类号： G02B19/00 ; G02B3/08 ; F21V5/04
摘要：
Lighting device comprising a lens (200') installed within a housing, said lens (200') comprising a body having a light-source facing-side (140) and a room facing-side (150), the room facing-side (150) being opposite the light-source facing-side (140) and comprising a first (104) and a second (106) region having grooves, the first region (104) refracting a portion of the light emitted by the light-source received through the light-source facing-side (140), the second region (106) redirecting, in part via total internal reflection, a portion of the light emitted by the light-source that is received through the light-source facing-side (140) and is incident on said second region (106), the lighting device producing a light-output distribution that is off-axis with respect to the axis of the aperture of the housing.
In some embodiments the lens is in the form of a downlight to wallwash lens that, when placed in a downlight fixture, converts the light distribution to that of a wallwash fixture e.g. causing the downlight to produce an off-axis light distribution without changing the fixture. The lens includes a body with a light-source facing-side and an opposite room facing-side having two structured regions, each redirecting a portion of light received through the light-source facing-side and incident thereon.
摘要（中）：
In some embodiments the lens is in the form of a downlight to wallwash lens that, when placed in a downlight fixture, converts the light distribution to that of a wallwash fixture e.g. causing the downlight to produce an off-axis light distribution without changing the fixture. The lens includes a body with a light-source facing-side and an opposite room facing-side having two structured regions, each redirecting a portion of light received through the light-source facing-side and incident thereon.
包括安装在外壳内的透镜（200'）的照明设备，所述透镜（200'）包括具有面向光源侧（140）和面向房间侧（150）的主体，所述室内侧（ 150）与所述光源面对侧（140）相对并且包括具有凹槽的第一区域（104）和第二区域（106），所述第一区域（104）折射由所述光源接收的光的一部分 通过所述面向光源侧（140），所述第二区域（106）部分地经由全内反射重新引导由所述光源发射的光的一部分，所述光通过所述光源面对侧（140） 并且入射在所述第二区域（106）上，所述照明装置产生相对于所述壳体的所述孔的轴线偏离轴线的光输出分布。 在一些实施例中，透镜为筒灯形式，用于墙壁清洗镜片，当放置在筒灯固定装置中时，该镜片将光分布转换为例如墙壁清洗固定装置的光分布。 使筒灯在不改变灯具的情况下产生离轴光分布。 该透镜包括具有两个结构化区域的面向光源侧和面向相对侧的主体，每个结构化区域重新引导通过面向光源侧接收并入射在其上的光的一部分。