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    • 43. 发明公开
    • HEAD-UP DISPLAY DEVICE
    • HEAD-UP-ANZEIGEVORRICHTUNG
    • EP2690484A1
    • 2014-01-29
    • EP12763278.4
    • 2012-02-10
    • Nippon Seiki Co., Ltd.
    • MATSUURA,KazuyaSAITO,MaikoHARUYAMA,Hiroteru
    • G02B27/01B60K35/00G02B27/02G02F1/13G02F1/1333
    • G02B27/0101G02B3/0006G02B5/02G02B2027/0118G02B2027/012G02F1/133603G02F1/133608G02F2001/133317G02F2001/133607G02F2001/133628G02F2203/01G03B21/28
    • The present invention provides a head-up display device which can improve light irradiation efficiency toward an eye box, suppress the amount of brightness change for a display image affected by the movement of the viewpoint, and achieve desirable properties for the light distribution angle. An illumination optical system (111) of the head-up display device has a light source (111a) for emitting a light beam (L0), a lens array (111c) for generating a plurality of images of the light source (111a) by dividing the light beam (L0), and a field lens (111d) for irradiating on a display member (113) at a given angle the light beam (L0) emitted from the image of the light source (111a), which is generated by the lens array (111c), wherein the lens array (111c) is arranged such that the imaging surface of the light source (111a) generated by the lens array (111c) is located on the side of the principal point of the field lens (111d) with respect to a focal point on the side of an object of the field lens (111d).
    • 本发明提供一种平视显示装置,其可以提高朝向眼盒的光照射效率,抑制受视点移动影响的显示图像的亮度变化量,并且实现对于配光角度的期望特性。 平视显示装置的照明光学系统(111)具有用于发射光束(L0)的光源(111a),用于通过以下方式产生光源(111a)的多个图像的透镜阵列(111c): 将光束(L0)和用于以给定角度照射在显示构件(113)上的光束(L0)的场透镜(111d),由光源(111a)的图像发射的光束(L0) 所述透镜阵列(111c),其中所述透镜阵列(111c)被布置为使得由所述透镜阵列(111c)产生的所述光源(111a)的成像表面位于所述场透镜的主点 111d)相对于场透镜(111d)的物体侧的焦点。