Apparatus for multiple resolution scanning
First Claim
1. A scanning apparatus for producing a two dimensional computer image of a two dimensional original object comprising:
- at least first and second platforms both supported for linear scanning motion along a predetermined path determined by at least one dimension of said original object;
said first platform carrying said original object and said second platform carrying electro-optical image reproduction means;
first and second scan motive means for moving said first and second platforms along said path;
one of said scan motive means moving one of said platforms over the entire length of said path;
the other of said scan motive means moving the other of said platforms over a fractional part of said path; and
motion control means for controlling said first and second scan motive means.
1 Assignment
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Accused Products
Abstract
A mechanical, electrical and optical scanning apparatus for producing a digital image of a two-dimensional original object in which the combined motions of multiple platforms or carriages along one dimension of the two-dimensional original object provides both low resolution scan of the original object and high resolution scan of the original object as well as intermediate resolutions. One of the platforms carries a camera with precision zoom/focus control for receiving light energy from said original object along the other of its dimensions converting it into electrical energy in a digital format. This platform provides low resolution scanning. The other platform carries the original object and provides high resolution scanning but moves only a fraction of the length of the original object. Combined motion of the two platforms provides high resolution scanning along the entire length of the two-dimensional original object.
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Citations
11 Claims
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1. A scanning apparatus for producing a two dimensional computer image of a two dimensional original object comprising:
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at least first and second platforms both supported for linear scanning motion along a predetermined path determined by at least one dimension of said original object; said first platform carrying said original object and said second platform carrying electro-optical image reproduction means; first and second scan motive means for moving said first and second platforms along said path; one of said scan motive means moving one of said platforms over the entire length of said path; the other of said scan motive means moving the other of said platforms over a fractional part of said path; and motion control means for controlling said first and second scan motive means. - View Dependent Claims (2, 3, 4, 5)
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6. A scanning apparatus for producing a two dimensional computer image of a two dimensional original object comprising:
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at least first and second platforms both supported for linear scanning motion along a predetermined path determined by at least one dimension of said original object; said first platform carrying said original object and said second platform carrying electro-optical image reproduction means; said electo-optical image reproduction means comprises; lamp means for producing light energy for illuminating said original object; camera means for receiving said light energy along the other of said object dimensions and coverting it into electrical energy in digital format using a charge coupled device; a multiplicity of lenses for focusing said light energy from said original object onto said charge coupled device; lense selection means for selecting one of said lenses to achieve said high, low and intermediate resolutions; zoom/focus motive means for precisely maintaining the proper distance between said original object and said charge coupled device; first and second scan motive means for moving said first and second platforms along said path; one of said scan motive means moving one of said platforms over the entire length of said path; the other of said scan motive means moving the other of said platforms over a fractional part of said path; motion control means for controlling said first and second scan motive means. - View Dependent Claims (7, 8, 9, 10)
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11. A scanning apparatus for producing a digital image of a two dimensional original object for use in a computer comprising:
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first and second platform means each adapted for moving along a predetermined path covering said original object; means for moving said first and second platform means separately along said predetermined path, so that a distance moved by said second platform means is less than a distance moved by said first platform means; said first platform means being adapted to support camera means with precision zoom and focus means for receiving light reflected from said original object to produce an image in a predetermined digital format; said second platform means being adapted to support said original object for movement along said predetermined path; whereby the combined motions of said first and second platform means provides a high resolution digital image of said original object.
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Specification