发明名称 Diffusor för ljustavlor
摘要 The diffuser (4) is positioned adjacent to the light tube (3) facing the front cover plate (5) and is partially reflective on the side facing the light tube and has areas with different transparencies. The diffusor comprises a flat plate parallel to the front cover plate, with a width of between 2 and 5 times the width of the light tube (3). The diffuser plate is opaque in the area immediately in front of the light tube, the transparency increasing with the distance from the light source (3), provided by 2 aperture fields, on either side of the centre line, with holes of varying size and/or spacing. ADVANTAGE - Uniform light distribution with low overall height.
申请公布号 SE507966(C2) 申请公布日期 1998.08.03
申请号 SE19930000943 申请日期 1993.03.22
申请人 OSRAM-FABRIKKEN ASA 发明人 SIGBJOERN *VIKAN
分类号 F21V11/14;G09F13/04;(IPC1-7):F21V11/14 主分类号 F21V11/14
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