发明授权
US07954965B1 Method for multiple gauges in a scanning laser based display device
有权
基于扫描激光的显示装置中多个量规的方法
- 专利标题: Method for multiple gauges in a scanning laser based display device
- 专利标题(中): 基于扫描激光的显示装置中多个量规的方法
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申请号: US12422692申请日: 2009-04-13
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公开(公告)号: US07954965B1公开(公告)日: 2011-06-07
- 发明人: Michael Boyd , Kang Li , George Wu
- 申请人: Michael Boyd , Kang Li , George Wu
- 申请人地址: US MI Canton
- 专利权人: Yazaki North America, Inc.
- 当前专利权人: Yazaki North America, Inc.
- 当前专利权人地址: US MI Canton
- 代理机构: Harness, Dickey & Pierce, P.L.C.
- 主分类号: G01D11/28
- IPC分类号: G01D11/28
摘要:
A display for measured quantities can include a gauge with a set of indicia spaced around the gauge to indicate the measured quantities. A window can be formed in the gauge that extends along the set of indicia. An elliptical reflector can be positioned such that a first focus of the elliptical reflector is on the same axis as the center of the gauge with this axis perpendicular to the axis connecting the foci. An optical device can be mounted on a shaft and be arranged to redirect a light beam from a second foci of the elliptical reflector onto the elliptical reflector to generate a virtual pointer in the window. Means can be provided for turning the shaft to rotate the optical device. A light source can project the light beam onto the optical device. Rotation of the optical device can enable the virtual pointer to be selectively aimed at the set of indicia.
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