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公开(公告)号：US20100008089A1
公开(公告)日：2010-01-14
申请号：US12169627
申请日：2008-07-08
IPC分类号： F21V21/00
CPC分类号： F21V21/04 , F21S8/02 , F21S8/022 , F21V5/00 , F21V7/00 , F21V13/04 , F21V33/0004 , F21Y2115/10
摘要： A compact lighting fixture having various functions can be achieved at low cost. The lighting fixture can provide a high degree of freedom for space utilization, can provide a comfortable illumination space with designed light distribution, can be configured to require a smaller space for installation, and can have an appearance that is not so different from its surroundings. As a component constituting the illumination optical system, a polygonal frustum portion can be located at a center and can have tapered side reflecting portions. When assuming that three concentric imaginary circles have respective radii of R1, R2 and R3 (R1
摘要翻译： 可以以低成本实现具有各种功能的小型照明器具。 照明器具可以提供高空间利用的自由度，可以提供具有设计的光分布的舒适的照明空间，可以被配置为需要更小的安装空间，并且可以具有与其周围环境没有太大差别的外观。 作为构成照明光学系统的部件，多边形截头圆锥部分可以位于中心并且可以具有锥形侧反射部分。 当假设三个同心虚圆具有相应的R1，R2和R3（R1
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公开(公告)号：US07744248B2
公开(公告)日：2010-06-29
申请号：US12169627
申请日：2008-07-08
CPC分类号： F21V21/04 , F21S8/02 , F21S8/022 , F21V5/00 , F21V7/00 , F21V13/04 , F21V33/0004 , F21Y2115/10
摘要： A compact lighting fixture having various functions can be achieved at low cost. The lighting fixture can provide a high degree of freedom for space utilization, can provide a comfortable illumination space with designed light distribution, can be configured to require a smaller space for installation, and can have an appearance that is not so different from its surroundings. As a component constituting the illumination optical system, a polygonal frustum portion can be located at a center and can have tapered side reflecting portions. When assuming that three concentric imaginary circles have respective radii of R1, R2 and R3 (R1
摘要翻译： 可以以低成本实现具有各种功能的小型照明器具。 照明灯具可以提供高空间利用的自由度，可以提供具有设计的光分布的舒适的照明空间，可以被配置为需要较小的安装空间，并且可以具有与其周围环境没有太大差别的外观。 作为构成照明光学系统的部件，多边形截头圆锥部分可以位于中心并且可以具有锥形侧反射部分。 当假设三个同心虚圆具有相应的R1，R2和R3（R1
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