Apparatus for image display with multi-focal length progressive lens or multiple discrete lenses each having different fixed focal lengths or a variable focal length

摘要

One or more display elements of an apparatus provide light representative of distant objects and near objects and at least one optical element of the apparatus is responsive to the light representative of the near objects, for providing video images of the near objects at one or more near focal lengths, and is responsive to the light representative of distant objects, for providing video images of the distant objects at one or more far focal length and positioned for viewing at an elevation above the video images of the near objects.