| 摘要 |
A monocentric autostereoscopic optical apparatus ( 10 ) for viewing a virtual image, electronically generated and projected on a curved surface. For each left and right image component, a separate optical system comprises an image generation system ( 70 l , 70 r) and projection system ( 72 ), the projection system comprising a spherical diffusive surface ( 40 ) and a spherical gradient-index ball lens assembly ( 31 ) to provide wide field of view. A monocentric arrangement of optical components images the ball lens pupil ( 48 ) at the viewing pupil ( 14 ) and essentially provides a single center of curvature (C) for projection components. Use of such a monocentric arrangement, diffusive surface ( 40 ), and ball lens ( 30 ) provides an exceptionally wide field of view with large viewing pupil ( 14 ).
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