Document reading apparatus
OwnerMitsunari Kano, Yoshiharu Konishiinventors
Life of this patent
Estimating the term…
Abstract
A document reading apparatus includes a table on which a document is set, a sensor which includes a light receiving plane for receiving an image of the document set on the table, and a lens disposed between the table and the light receiving plane which forms an image of the document on the light receiving plane of the sensor. A first extended line of the table extends from the table in a plane of the table, a second extended line of the light receiving plane extends in a plane of the light receiving plane, and a third extended line of the lens which extends in a direction perpendicular to an optical axis of the lens extend so as to intersect at one point.
Claims25
A document reading apparatus, comprising:
- a table on which a document is set;
- a sensor which comprises a light receiving plane for receiving an image of the document set on the table;
- and
- a lens disposed between the table and the light receiving plane which forms an image of the document on the light receiving plane;
- wherein a first extended line of the table extends from the table in a plane of the table, a second extended line of the light receiving plane extends in a plane of the light receiving plane, and a third extended line of the lens extends in a direction perpendicular to an optical axis of the lens, and the first, second and third extended lines extend so as to intersect at one point.
The document reading apparatus for reading a document, comprising:
- a pedestal on which the document to be read is set at a position with respect to the pedestal;
- a line sensor which moves in a sub-scan direction and scans an image of the document optically;
- a reading head having the line sensor incorporated therein;
- and
- a supporting leg which extends from the pedestal and supports the reading head above the pedestal;
- wherein the line sensor is disposed in the reading head at a position in which a first line extending in the sub-scan direction and a second line which extends in a plane of the pedestal intersect.
A document reading apparatus, comprising:
- a pedestal on which a document is set;
- and
- a head comprising an image sensor having a light receiving plane and which reads an image of the document, and a lens having an optical axis and which forms the image of the document on the light receiving plane of the image sensor;
- wherein the head has the image sensor and the lens disposed therein with the lens being maintained at a fixed position during reading of the document so that an optical axis of the lens is offset with respect to a center of the document.
An document reading apparatus, comprising:
- a sensor which reads an image of a document, the sensor being disposed at a position deviated from a center of the document so that a distorted image of the document is formed on the sensor;
- and
- a controller which changes the distorted image read by the sensor into an image corresponding to the document.
An image reading apparatus comprising:
- a table having a setting plane on which a document is set;
- a leg which stands on the table;
- a head section positioned on the leg;
- and
- a line sensor incorporated in the head and aligned in a first direction which is parallel with the setting plane, the line sensor being movable in a second direction which intersects the setting plane while the sensor reads an image of the document.
Dependencies are inferred from the claim text.