公开(公告)号：US4740780A

公开(公告)日：1988-04-26

申请号：US747861

申请日：1985-06-24

申请人： Steven E. Brown ,  John Weaver ,  Ronald A. Sargent ,  Scott W. Patterson ,  Maurice L. Stephenson

发明人： Steven E. Brown ,  John Weaver ,  Ronald A. Sargent ,  Scott W. Patterson ,  Maurice L. Stephenson

IPC分类号： G02B27/00 ,  G02B27/01 ,  G02B27/10

CPC分类号： G02B27/01 ,  G02B27/0101 ,  G02B2027/0169

摘要： A head-up display for use in an automotive or other vehicle having limited space. The optical path from display symbol generator to a collimating lens is folded to fit in a relatively compact housing. Also shown is the use of the automobile windshield as a combiner glass for the display. Corrective lenses, and in particular crossed linear fresnel lenses, are used to correct for the astigmatism introduced by the geometry of the windshield. This provides a combination of optical powers for the display lens and the windshield which has the resultant effect of projecting an image from the image source to the driver's eye. The source is a high light output array of light-emitting diodes. A microprocessor based controller for detecting the status of inputs from the automobile is shown. Data is periodically loaded into a random access memory dedicated to controlling the display. When data is not being loaded, a separate address and timing generator is used to cause data from this memory to be displayed in a free-running mode.

摘要翻译： 一种用于汽车或其他车辆的平视显示器，其空间有限。 从显示符号发生器到准直透镜的光路被折叠以适合相对紧凑的外壳。 还示出了使用汽车挡风玻璃作为显示器的组合玻璃。 校正透镜，特别是交叉线性菲涅尔透镜，用于校正由挡风玻璃几何形状引起的散光。 这提供了用于显示透镜和挡风玻璃的光焦度的组合，其具有将来自图像源的图像投影到驾驶员眼睛的结果。 该源是发光二极管的高光输出阵列。 示出了用于检测来自汽车的输入状态的基于微处理器的控制器。 数据被周期性地加载到专用于控制显示器的随机存取存储器中。 当数据未被加载时，使用单独的地址和定时发生器来使来自该存储器的数据以自由运行模式显示。