Patent ID: 6307591
Filing Date: 2001-10-23
Classification: H04N

Abstract:
An imaging apparatus, comprising:imaging means having a predetermined aspect ratio;projecting means for projecting incident light onto said imaging means;aspect ratio selecting means for selecting an aspect ratio from a plurality of pre-set aspect ratios, by adjusting an aspect ratio changing means;aspect ratio changing means, provided between said projecting means and said imaging means, for selectively changing an aspect ratio optically determined through said projecting means into an aspect ratio in accordance with said aspect ratio selected by said aspect ratio selecting means and substantially coinciding with the aspect ratio of said imaging means, so that the light having entered through said projecting means is projected all over an image surface of said imaging means;wherein said aspect ratio changing means includes a refractive index changing lens for, by rotating of the lens about an axis of said lens, changing refractive index of incident light; andwherein said aspect ratio changing means rotates said refractive index changing lens about said axis in an interlocked manner with said aspect ratio selecting means, so as to vary the aspect ratio optically determined through said projecting means.