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US 6,307,591 B1Granted
Imaging apparatus including device for a selectively changing aspect ratios
AssigneeSharp Kabushiki Kaisha
InventorsHidetaka Yoshida, Masatugu Daiju, Toshio Isoe
Life of this patent
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Abstract
An imaging apparatus has a CCD with a predetermined aspect ratio, and a converging lens for projecting incident light onto the CCD. In the imaging apparatus, there is provided a ratio changing mechanism between the converging lens and the CCD, and an aspect ratio which is optically determined through the converging lens is selectively varied by the ratio changing mechanism so as to substantially coincide with the aspect ratio of the CCD.
Claims12
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;
- and
- wherein 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.
4 more elements
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;
- and
- wherein said aspect ratio changing means includes reflecting plates, rotatably provided in parallel with an optical axis of said projecting means between said projecting means and said imaging means, said reflecting plates rotating in an interlocked manner with said aspect ratio selecting means so as to reflect the light, so that the aspect ratio of the light varies.
3 more elements
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 imaging means is rotatably provided;
- sound recording means moving in an interlocked manner with rotation of said imaging means;
- sound recording direction switching means for switching a sound recording direction of said sound recording means in accordance with a direction which said imaging means faces;
- said sound recording direction switching means switching directivity of said sound recording means to have directivity in a single direction when imaging a facing object and to have non-directivity during normal operations;
- and
- wherein said sound recording direction switching means has a sound recording means supporting member, which is hollow, has apertures, and holds said sound recording means therein, for switching the sound recording direction of said sound recording means by opening or closing one of the apertures of said sound recording means supporting member in an interlocked manner with the rotation of said imaging means.
7 more elements
An imaging apparatus comprising:
- imaging means for imaging an object image, rotatably provided so as to be capable of facing a direction in a normal state and an opposite direction to the direction in the normal state;
- sound recording means moving in an interlocked manner with rotation of said imaging means;
- sound recording direction switching means for switching a sound recording direction of said sound recording means in accordance with a direction which said imaging means faces;
- and
- said sound recording direction switching means switching directivity of said sound recording means to have directivity in a single specific direction when imaging a facing object and to have non-directivity during normal operation;
- and
- wherein said sound recording direction switching means includes a sound recording means supporting member, which is hollow, has apertures, and holds said sound recording means therein, for switching the sound recording direction of said sound recording means by opening or closing one of the apertures of said sound recording means supporting member in an interlocked manner with the rotation of said imaging means.
4 more elements
Dependencies are inferred from the claim text.