Fujitsu Corporation

Yoshiro Ishikawa

Tsugio Noda

Michio Miura

Hirotaka Chiba

Ippei Sawaki

Fumitaka Abe

Kenichiro Sakai

Satoshi Ueda

Takashi Katsuki

An image reader, detachably attached to an electronic apparatus, for functionally expanding the electronic apparatus and for reading an image on a medium, includes an interface connectible to and disconnectible from the electronic apparatus a housing having an image-reading surface that faces the medium, a medium detecting part, provided on the image-reading surface, for detecting the medium, and an image reading part, provided on the image-reading surface and driven based on a detection result by the medium detecting part, for reading the image on the medium.

Image reader

The image reader according to the present invention comprises a housing having substantially a box-shape and having an image reading surface contacting a document, a document detecting section provided to this image reading surface for detecting a document P, and an image reading section for reading an image on the document when the document P is detected by the document detecting section. This image reader enables improvement in convenience for users, operability, and adaptability for handling, and also it is small in size.

A hand-held image scanner includes an elongate body, a line sensor extending in the body longitudinally thereof for reading an original document as the body moves along the document, a roller shaft rotatably supported in the body to extend longitudinally of the body, at least one roller supported on the roller shaft for rotating therewith while rolling on the document. The scanner also includes a rotary encoder for detecting the rotation of said at least one roller for determining a scanning distance of the body, and a drive transmission for connecting the roller to the rotary encoder. The rotary encoder includes a rotary disk supported on a disc shaft. The disc shaft extends perpendicularly to the roller shaft.

Image scanner incorporating rotary encoder

The image reader according to the present invention comprises a housing having substantially a box-shape and having an image reading surface contacting a document, a document detecting section provided to this image reading surface for detecting a document P, and an image reading section for reading an image on the document when the document P is detected by the document detecting section . This image reader enables improvement in convenience for users, operability, and adaptability for handling, and also it is small in size.

An image reader apparatus includes an illuminating element to illuminate a document face to be read, an optical element to form an image of the document face illuminated by the illuminating element, an image sensor to photoelectrically convert the image formed by light passing through the optical element, and a running roller rotating in contact with the document face, wherein a horizontal distance between a document contact portion of the running roller where the running roller contacts the document and a center of imaging of the optical element is shorter than or equal to 10 mm.

Image reader apparatus

An optical apparatus having a first lens array consisted of a plurality of lens forming reduced image in reversed orientation, a second lens array consisted of a plurality of lens arranged at corresponding positions to the lens of the first lens array and forming erected equal magnification image from the reduced image by expanding the reduced image in the given magnification, and one or more light shielding film arranged between the first lens array and the second lens array and having through openings for passing light discharged from respective lens of the first lens array at positions corresponding to respective lens of the first lens array in opposition to respective lens for passing discharged light from respective lens of the first lens array.

Growing community of inventors

Takatsuki, Japan

Yoshiro Ishikawa