发明名称 Illumination of gauge indicator scale
摘要 An instrument gauge display for a vehicle dash includes a transparent dial having an upper surface partially covered by black paint and a lower surface covered with white paint. Uncovered areas on the upper surface define a plurality of graphical images that indicate a vehicle operating condition. A light guide, supported within a light housing, is positioned underneath the dial. The light housing and at least one light source is mounted to a printed circuit board, which is supported underneath the light guide by a vehicle structure. The light guide includes a plurality of scattering elements that are positioned generally underneath each of the graphical areas on the dial. The light source cooperates with the light guide and scattering elements to improve the light efficiency.
申请公布号 US7048397(B2) 申请公布日期 2006.05.23
申请号 US20040760755 申请日期 2004.01.20
申请人 SIEMENS VDO AUTOMOTIVE CORPORATION 发明人 BIRMAN VYACHESLAV B.
分类号 G01D11/28;F21V9/16;G01D13/20 主分类号 G01D11/28
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