发明名称 PRISMATIC LIGHT LOUVER
摘要 A light transmitting louver for use as a ceiling panel in a luminous ceiling or as a lens in a lighting fixture. The louver has a planar member adapted to be positioned adjacent a light source and a plurality of walls extending from the member on the side opposite the light source to define a symmetrical closed cell system. Within the peripheral extent of each cell and on a surface of the planar member are prisms which extend generally symmetrical to the cell axis and with the cell wall. The individual prisms are asymmetrical in cross-section, i.e., the angular slope of the respective surfaces of each prism is different.
申请公布号 US3668381(A) 申请公布日期 1972.06.06
申请号 USD3668381 申请日期 1970.02.02
申请人 ROBERT A.D. SCHWARTZ;RODNEY P. OSTERBERG 发明人 ROBERT A.D. SCHWARTZ;RODNEY P. OSTERBERG
分类号 F21V3/00;F21V5/02;(IPC1-7):F21V5/00 主分类号 F21V3/00
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