公开(公告)号：US20070153395A1

公开(公告)日：2007-07-05

申请号：US11645632

申请日：2006-12-27

申请人： Piermario Repetto ,  Stefano Bernard ,  Davide Capello ,  Roberto Finizio ,  Luca Liotti ,  Cosimo Carvignese ,  Denis Bollea

发明人： Piermario Repetto ,  Stefano Bernard ,  Davide Capello ,  Roberto Finizio ,  Luca Liotti ,  Cosimo Carvignese ,  Denis Bollea

IPC分类号： G02B27/14

CPC分类号： G02B17/0856 ,  G02B6/00 ,  G02B27/0081 ,  G02B27/0172 ,  G02B2027/011 ,  G02B2027/012

摘要： An optical system for image projection, particularly for projection devices of the “head-mounted” type, includes a display, an optical system for focusing an image formed by the display, and a light guide having an extended body, with two opposite, longitudinal, plane and parallel faces, and opposite ends which define first reflecting surface for coupling into the light guide and second reflecting surface for extracting the image from the light guide. Each light ray which propagates through the light guide undergoes at least three internal total reflections on the parallel plane faces of the light guide. At least a surface of the focusing optical system is a portion of a surface free of rotational symmetry axes. Moreover, the two reflecting surfaces of the light guide are portions of surfaces free of rotational symmetry axes. Finally, the inlet pupil of the light guide coincides with the outlet pupil of the focusing system.

摘要翻译： 用于图像投影的光学系统，特别是用于“头戴式”类型的投影装置的光学系统包括显示器，用于聚焦由显示器形成的图像的光学系统和具有延伸体的光导体，具有两个相对的纵向 平面和平行面以及限定用于耦合到光导中的第一反射表面的相对端和用于从光导中提取图像的第二反射表面。 通过光导传播的每个光线在光导的平行平面上经历至少三次内部全反射。 聚焦光学系统的至少一个表面是没有旋转对称轴的表面的一部分。 此外，光导的两个反射面是没有旋转对称轴的表面的部分。 最后，光导的入射光瞳与聚焦系统的出射光瞳重合。