Other

Umax Data Systems, Inc.

Transpacific IP Limited

Veutron Corporation

Transpacific Systems, LLC

Po-Hua Fang

Yin-Chun Huang

Shu-Ya Chiang

Ji-Mei Tsuei

Hsiu-O Hsu

Tsang-Huai Chang

Shi-Hua Huang

Chien-Liang Yeh

The invention relates to a scanner's optical device, receive the light coming from the image of an object to be scanned, comprising: several reflective mirrors, a light-focusing module, and a charge coupled device. The reflective mirrors provide reflection and directional change for the light and, by appropriately arranging several reflective mirrors, the light of the object to be scanned directionally changed to a predetermined route. With at least one curving mirror, the light-focusing module focus the light of the predetermined route and then directionally change it, and a raster is then provided in the light route of the curving mirror for filtering out unnecessary light. The charge coupled device may receive the light coming from the light-focusing module and convert it into electronic signals. The said light-focusing module replaces the prior lens set for executing a scanning job.

Optical device of scanner

The invention is to provide a light-focusing for image-gathering device that receive the light coming from the image of an object being scanned. The light-focusing for image-gathering device is comprised of: at least one reflection mirror, an imaging device and at least one raster (optical grate). The reflection mirror has plural concave surfaces that are arranged appropriately, and the concave surface provides the light being focused and reflected to a predetermined route. The imaging device receives the light reflected from at least one reflection mirror and converts it into electronic signal. The raster has plural pervious holes, of which positions are just respectively corresponded to each concave surface. The raster is located in the light-path route between the imaging device and at least one reflection mirror. When an image data of an object being scanned that can be divided into receivable image-and-light signal of the object being scanned and un-receivable image-and-light signal of the object being scanned is gathered executively, the un-receivable image-and-light signals of the object being scanned are first removed, then the adjacent receivable image-and-light signal of the object being be scanned is connected together to obtain a complete image output data.

Image-gathering apparatus and method

The present invention is an improved transparency scanning module, which is applied on a cover of scanning device. The transparency scanning module and the cover can be taken apart for different consuming groups. The features of the invention are that transparency scanning module is embedded in cover, and a slot of cover for holding transparency scanning module is set plural fillisters, and there are plural connectors set on the relative positions of transparency scanning module for connecting each other. When the fillisters connecting with the connectors, transparency scanning module is able to offer light and also transparency scanning module and cover are combined and fixed each other closely; on the other hand, rim of transparency scanning module is thinner, and most central part is protruding in z direction, thus transparency scanning module can be inserted and held in the slot of cover. This is another design for closely combination.

Transparency scanning module

A document scanner with a light focusing device downward formed on a document support panel is disclosed. The document scanner is provided with a chassis including a light source and an image sensing device. A scanning window made of light-transmitting material is formed in an area of the document support panel. A driving roller is arranged in a document feeder for driving a document to be scanned through the scanning window. Light emitted from the light source transmits through the scanning window toward the document and is reflected by the document toward the image sensing device, The document support panel forms a convex projection on a bottom surface thereof. The projection confronts the light source for focusing the light onto the document. Preferably, the projection includes an extended section from the bottom surface of the document support panel and forming a convex end surface confronting the light source. A light collecting rim is further downward fanned on the document support panel and around the extended section in a direction toward the light source.

Document scanner with light-focusing device

A scanning method in which a scanning head moves back and forth to scan a paper sheet located in a scanning window is disclosed. The method of the present invention includes the steps of a) making the paper sheet go forward a first distance into the scanning window; b) the scanning head scanning a portion of the paper sheet; c) the transmission mechanism driving the scanning head to move a second distance in a first direction, wherein the second distance is smaller than the first distance; d) repeating the steps b) and c) until the scanning head completely scans a plurality of portions of the paper sheet in the scanning region; e) repeating the steps a), b), c) and d), except that the scanning head moves in a second direction opposite to the first; f) repeating the steps a), b), c), d), and e), the movement of the scanning head alternating between a first and second direction, until the scanning head completely scans the paper sheet to be scanned.

Scanning method by using sheet feed scanner

A method of detecting the alignment of a document in an automatic document feeder including an optical scanner that has an automatic document feeder and a document. The automatic document feeder has a colored pattern layer corresponding to a scanning window of the optical scanner. The document has at least one side edge. When the document is being fed into the automatic document feeder, the side edge is just positioned between the scanning window and the colored pattern layer. When the automatic document feeder is switched on to feed in the document, a first image retrieval is made from the document placed on the scanning window. After the document is fed in by an appropriate length, a second image retrieval is made from the document placed on the scanning window. A slant value is calculated.

Detecting the alignment of a document in an automatic document feeder

The present invention is to provide an image scanner, for scanning a reflection document or a transmission document. The image scanner comprises a shell, a document window glass, a transmission document carrier, and an optical chassis. The shell has a groove on its upper surface. The document window glass is capable of connecting with the groove, for scanning the reflection document. The transmission document carrier is capable of connecting with the groove, for scanning the transmission document. The optical chassis is provided at a proper location, for retrieving the images of the reflection document and the transmission document and converting them to an electronic signal. Wherein, by placing the document window glass or transmission document carrier into the groove, the image scanner is capable of scanning the reflection document or transmission document, respectively.

Image scanner

A light-source mechanism for an optical scanner includes a chassis, a lamp, a lamp holder and a buffering device between the chassis and the lamp holder. If the buffering device is subjected to an external force of impact and vibration, the buffering device may effectively absorb the influence of the external force, such that the lamp generally will not be damaged.

Light-source mechanism for optical scanner

The invention relates to a scanner's optical device, for receiving the light coming from the image of an object being scanned, comprising: several reflective mirrors, a light-focusing module, and a charge coupled device. The reflective mirrors provide reflection and directional change for the light and, by appropriately arranging several reflective mirrors, the light of the object being scanned directionally changed to a predetermined route. With at least one curving mirror, the light-focusing module focuses the light of the predetermined route and then directionally changes it, and a raster is then provided in the light route of the curving mirror for filtering out unnecessary light. The charge coupled device receives the light coming from the light-focusing module and converts it into electronic signals. The said light-focusing module replaces the prior art lens set for executing a scanning job.

A light source device including light emitting elements is provided. The light source device includes a print circuit board having a plurality of recesses formed of truncated elliptical/or rectangular cones in a linear arrangement formed thereon, a plurality of light emitting elements and an emission-permeable window part disposed in each of the recesses. Each of the recesses has a flat bottom and an elliptical/or a rectangular cross section along the direction of the linear arrangement of the recesses in the print circuit board. One of the light emitting elements is disposed on the flat bottom of each of the recesses. Each light emitting element unit has an elongated illuminant surface along the longitudinal direction of the print circuit board due to the package thereof. The light emitting element units constitute a linear light source along this direction, and each light emitting element unit has an increased luminance flux along this direction.

Light source device

A document scanner with a light focusing device downward formed on a document support panel is disclosed. The document scanner is provided with a chassis including a light source and an image sensing device. A scanning window made of light-transmitting material is formed in an area of the document support panel. A driving roller is arranged in a document feeder for driving a document to be scanned through the scanning window. Light emitted from the light source transmits through the scanning window toward the document and is reflected by the document toward the image sensing device. The document support panel forms a convex projection on a bottom surface thereof. The projection confronts the light source for focusing the light onto the document. Preferably, the projection includes an extended section from the bottom surface of the document support panel and forming a convex end surface confronting the light source. A light collecting rim is further downward formed on the document support panel and around the extended section in a direction toward the light source.

Document scanner with light focusing device

An optical image scanning device includes a casing having a document supporting plate and a top cover. The top cover has an underside surface coated with a fluorescent material thereon. An optic module includes a light source for projecting an exciting light onto the fluorescent layer whereby the fluorescent material is excited by the exciting light to emit a scanning light. The scanning light transmits through a light-transmittable document and projects an image of the document onto reflective mirrors for guiding the scanning light through a focusing lens. The focusing lens focuses the light onto a image sensing device. A reflective type light source is selectively arranged in the optic module for selectively projecting a light onto a document formed on a non-transmissive medium that is positioned on the document supporting plate.

Optical image scanning device with fluorescent layer as back light

The present invention relates to a depth of field adjustment device and method for an automatic document feeder. The automatic document feeder has a guiding groove for placing an object to be scanned. The guiding groove has a scanning window for providing image picking-up for an optical chassis. An adjustable suppressing mechanism located at the guiding groove in corresponding to the scanning window may drive the object to be scanned to pass through an optimal depth of field height of the scanning window. First, at least a part of the pre-scanned object is fed in to be located between the adjustable suppressing mechanism and the scanning window. The depth of field height is then adjusted and changed by the adjustable suppressing mechanism. And, the image of the pre-scanned object is compared with a pre-stored image. After the pre-scanned objected has been judged to be located at the optimal depth of field height, the adjustable suppressing mechanism is fixed and the pre-scanned object is sent out. Then, it may achieve a most clear image picking-up for scanning the object to be scanned.

Growing community of inventors

Hsinchu, Taiwan

Po-Hua Fang