公开(公告)号：US4826287A

公开(公告)日：1989-05-02

申请号：US005416

申请日：1987-01-20

申请人： Lacy G. Cook ,  Gerard M. Perron ,  Brian K. Zellers ,  Brian D. Cohn

发明人： Lacy G. Cook ,  Gerard M. Perron ,  Brian K. Zellers ,  Brian D. Cohn

IPC分类号： G02B13/00 ,  G02B27/00 ,  G02B27/01 ,  G02B27/10 ,  G02B13/18

CPC分类号： G02B13/0095 ,  G02B27/0025 ,  G02B27/0103 ,  G02B2027/0107

摘要： A head-up display for use in a vehicle is provided with a curved combiner which reflects an image from a cathode ray tube (CRT) as collimated rays to a viewing site. A relay lens is positioned between the CRT and the combiner to magnify and transfer the image. The combiner may be a partially-reflecting mirror or holographic optical element or dielectric laminate. Included within the relay lens is a coma-control plate having two-dimensional undulations described mathematically by a two-dimensional power series having odd symmetry in a plane of a tilting of the combiner and even symmetry in the perpendicular dimension. The coma-control plate substantially reduces coma in an image presented for viewing at infinity, the coma being introduced by the curvature and off-axis use of a surface of the combiner.

摘要翻译： 一种用于车辆的平视显示器设置有将来自阴极射线管（CRT）的图像作为准直光线反射到观看位置的弯曲组合器。 中继透镜位于CRT和组合器之间，以放大和传输图像。 组合器可以是部分反射镜或全息光学元件或介电层压板。 中继透镜内包括具有通过在组合器的倾斜平面中具有奇数对称性并且在垂直尺寸上甚至对称性的二维功率系列数学描述的二维起伏的彗差控制板。 昏迷控制板大大减少了呈现为无限远观看的图像中的彗差，彗差由组合器表面的曲率和离轴使用引入。