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    • 4. 发明申请
    • LENSES AND LIGHTING DEVICES INCLUDING SAME
    • 包括其中的镜头和照明装置
    • US20150345742A1
    • 2015-12-03
    • US14722225
    • 2015-05-27
    • Bruce RadlZhuo WangYvetta Pols Sandhu
    • Bruce RadlZhuo WangYvetta Pols Sandhu
    • F21V7/00
    • F21V7/0091F21S41/285F21S41/29F21V5/02F21V5/045F21V5/08G02B3/08G02B19/0061G02F2001/133607
    • Optical components for lighting devices and lighting devices including such components are described. In some embodiments the optical components are in the form of a lens that alter the distribution of light produced by a lighting fixture. In some embodiments, the lenses are in the form of a downlight to wallwash lens which, when placed in a downlight fixture, convert 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 optically active regions, each including structures that redirect a portion of light received through the light source facing side and incident thereon. The first region includes structures that redirect, via refraction, and the second region includes structures that redirect, in part via total internal reflection.
    • 描述了用于照明装置和包括这些部件的照明装置的光学部件。 在一些实施例中,光学部件是改变由照明器具产生的光的分布的透镜的形式。 在一些实施例中,透镜呈筒灯的形式,其形成为壁灯透镜,当被放置在筒灯中时,其将光分布转换成壁洗夹具的光分布,例如使得筒灯产生离轴光分布, 不改变灯具。 透镜包括具有光源面对侧的主体和面向对面的具有两个光学有源区域的主体,每个光学活动区域包括使通过光源面向侧接收的光的一部分重定向并入射到其上的结构。 第一区域包括通过折射重定向的结构,并且第二区域包括通过全内反射部分地重定向的结构。