Abstract: The double-stair-like capacitor formed on a semiconductor substrate includes a first storage node having stair-like structurs in cross section view to increase the area of the first storage node. A dielectric layer substantially conformally covers a surface of the first storage node. A second storage node having a surface substantially conformally contacts the dielectric layer.

Abstract: A multi-lenses optical device with high resolution is provided for converting an optical image into electronic signals. The multi-lenses optical device includes a focusing unit for focusing a plurality of sections of the optical image to correspondingly generate a plurality of focused image sections with the same ratio and having the same optical path length, a photoelectric conversion unit for converting the plurality of focused image sections into the electronic signals, a switching unit for sequentially having each one of the focused image sections or the optical image sections selected and having the selected image section transmitted to the photoelectric conversion unit, and a light-reflecting unit mounted between the photoelectric conversion unit and the focusing units for transmitting the plurality of image sections.

Abstract: Colored optical sensing module comprising a color adjustment device positioned in front of a colored charge coupler device array. The color adjustment device purifies the color component of the image data input into the charge coupler device array. The present invention also discloses a image scanner comprising said color adjustment device.

Abstract: An alignment pattern of the present invention includes a resolution analysis pattern that is formed on the central portion of the alignment pattern for the resolution analysis of a scanning system. A pair of horizontal alignment patterns that cosists of a black zone and a white zone are formed adjacent to the terminations of the resolution analysis pattern for horizontal and boundary alignments. The pattern arrangement of the pair horizontal alignment patterns is not only upside down but also a mirror image with each other. The black zone includes a shallow indented portion adjacent to the resolution analysis pattern in the black zone and on the border of the black zone, white zone. A white rectangular figure is exactly formed over or under the shallow indented portion in the black zone and parallel to the shallow indented portion. The area between the shallow indented portion and the white rectangular figure is used to serve as a horizontal fine alignment for the scanning system.

Abstract: The present invention includes a lens holder base, a first covering element and a second covering element. A V shape trench is formed on the top surface of the lens holder base for holding the lens. Further, the trench is preferably formed to be orthogonal to the CCD. The first covering element and the second covering element are utilized for preventing the noise light from interfereing the CCD. The second covering element is a flat plane having a protrudent portion, which is connected to the first covering element. The flat plane portion of the second covering element has screws that are used to connect to the top surface of the lens holder base. An adjusting element is set on the top of the protrudent portion for adjusting the focal length of the lens set.

Abstract: The invention relates to a document-tray driven apparatus for a photo drive for reading information off a transparent sheet or a reflective sheet. The invention mainly comprises a paper feeding device, a driving device, a lower illumination device, an upper illumination device and a photoelectric converting device. The exposure of the original sheet depends on the motion of the paper feeding device. As the paper feeding device is moving, the scanning process takes place simultaneously. This design allows all other optical members to fix on the housing. Thus, it makes the light path easier to control and the quality of the image scanned will be improved thereby. Moreover, since the driving device is installed at a single side of the housing, the space inside the housing can be utilized more efficiently.

Abstract: Disclosed is a CIS (contact image sensor) scanner which apples a CIS module with two bracket arms for assuring a document sheet in focus. The CIS module is mounted on a pair of shafts. Each shaft is rested on a pair of shaft bearings. At each shaft bearing, there is a rigid body interposed between the shaft and the document sheet. Inside each shaft bearing, there is an elastic element under the shaft for uplifting the CIS module to press the rigid body firmly onto the bottom surface of the sheet table. The rigid body and the elastic elements can help to maintain a stable distance between the sheet table and the CIS module, thereby improving the picture quality of images.

Abstract: A scanner including a scanning unit for scanning penetrative document as well as reflective document, and a light source projecting unit adapted for reflecting light from the light source of the scanning unit through penetrative document when the light source of the scanning unit is turned from the position for reflective scanning mode to the position for penetrative scanning mode.

Abstract: A cost-effective optical device is used for converting a photo-image into electronic signals with high resolution. The optical device includes a plurality of focusing units for receiving a plurality of sections of the photo-image respectively, and generating a plurality of corresponding focused image sections wherein the focusing units are mounted in specific locations for focusing the plurality of sections of the photo-image through various light paths and at various distance, and the plurality of corresponding focused image sections are magnified with the same ratio, a photoelectric conversion unit for sequentially converting the plurality of corresponding focused image sections into the electronic signals, and a light-reflecting unit mounted between the plurality of focusing units and the photoelectric conversion unit for sequentially transmitting the plurality of corresponding focused image sections to the photoelectric conversion unit.

Abstract: A handy scanner for scanning an image by user hand-held operation along the surface of a sheet of document is disclosed. The scanner includes an illumination light source for illuminating the image for scanning, an image pick-up mechanism receiving the light reflected from the image illuminated to be scanned, and converting the received light into an image electrical signal, a moving mechanism used for conducting movement of the scanner over the surface of the image, a position detector coupled to the moving mechanism for detecting the position of the apparatus over the image surface, an electronic circuitry coupled to the image pick-up mechanism and the position detector used for receiving the image electrical signal and the position electrical signal respectively and processing them, and a scanning path straightness-maintaining mechanism used for assisting to constrain scanning movement of the scanner in an intended straight line for achieving optimized scanning effect.

Abstract: An optical scanner utilizes a simplified driving device for providing stable light path for improving the qualities of images. With the concern of high resolution and simple structure, the invention includes an illuminating carriage, a photoelectric converting device, a pair of lead screws and support, and a driving device. The illuminating carriage is mounted on first lead screw and support for providing light source. The photoelectric converting device disposed below the illuminating carriage is mounted on second lead screw and support. When scanning, the driving device rotates first lead screw and second lead screw to drive the illuminating carriage and the photoelectric converting device in different directions and in synchronism.

Abstract: A method and an apparatus for compensating illuminance error of a light source is adapted to be used in a transmission type scanner and utilizes the light signal directly transmitted from the light source to an image pickup device of the scanner without passing through any scanned object as an illuminance calibration reference to compensating illuminance error of the light source. The calibration light signal can be transmitted from the light source to the image pickup device through a light transmission region arranged beside a scanning region.

Abstract: The invention disclosed a rotatable lamp carriage for a scanner which can provide light source for a reflective sheet or a transparent sheet using only a single lamp. The invention mainly includes a lamp carriage, a base carriage, a rotatable arm, a support arm, and a driving device. The lamp carriage and the base carriage are connected together by the rotatable arm and the support arm. The rotatable arm which consists of a gear set controls the movement of the lamp carriage. When the rotatable arm is driven upwards, the lamp carriage provides light source for a transparent sheet. When the rotatable arm is driven downwards, the lamp carriage provides light source for a reflective sheet.

Abstract: A driving apparatus for a double carriage scanner drives the lamp carriage and the optical carriage in tandem. The driving apparatus is located at one side of the scanner housing for ease in assembly and maintenance. It consists of a pulley assembly and a closed-loop conveying device which engages the pulley assembly in a manner that the lamp carriage advances one unit distance while the optical carriage one half unit distance in synchronism and in the same direction.

Abstract: The present invention relates generally to a flat-plate scanner with two lamps, and particularly to a device adopts a beam-splitting device which partially reflects and partially transmits incident light. Reflective scanning utilizes a light source, a set of mirrors, a beam-splitting device and an image-capturing element, wherein reflected light (or transmitted light) from the beam-splitting device representing the reflective document image will be captured by the image-capturing element. On the other hand, transparent scanning utilizes another light source, another set of mirrors, the beam-splitting device and the image-capturing element, wherein transmitted light (or reflected light) from the beam-splitting device representing the transparent document image will be captured by the image-capturing element. The present invention is characterized in that all the optical members are fixed, and thus better accuracy and image quality can be acquired.

Abstract: The device includes a lens set inputting therein one of a plurality of input photic images of various sizes and outputting an output photic image through one of a plurality of various photic paths; and a reflection device cooperating with the lens set, and outputting the output photic image to be focused on the photoelectric transducing element through a reflection.

Abstract: A converter for converting a reflection type scanner to a transparence type scanner comprising a casing equipped with a window through which light beams for transparence type scanning may pass. Inside the casing at the area of the window is a light distribution plate to transmit and to distribute incidence light beams to all areas of the light distribution plate. At both sides of the window are two light incidence windows through which incidence light beams may pass. Inside the casing at the area of the incidence windows are two reflecting mirrors to reflect the incidence light beams to at least an edge surface of the light distribution plate whereby the incidence light beams enter the light distribution plate and are distributed to the whole area of the light distribution plate. A control device and a noise minimizing device positioned in a reflection type scanner is also disclosed in this invention.

Abstract: A method and apparatus is used on a flatbed scanner for calibrating the horizontal starting point of a document which is to be scanned by the flatbed scanner. The flatbed scanner is of the type having a light-sensing device as a CCD or CIS device consisting of a linear array of light-sensing cells and a movable scan head. In the method and apparatus, two reflective marks are fixed at a predetermined calibrating position to the front edge of the document. During the calibration process, the movable scan head is moved to the calibrating position where it senses the two reflective marks to thereby determine the distance in pixels between the first light-sensing cell on the linear array and the first reflective mark, and also the distance in pixel between the two reflective marks. The distance in pixel between the first reflective mark and the horizontal starting point of the document can then be determined.

Abstract: The invention discloses a compact scanner with an internal document tray which can be integrated with a computer and adapted to the location of the floppy diskette driver of the computer. The invention has a very simple structure driving device which allows a document I/O device to locate between illuminating device and photoelectric converting unit. When scanning, an illuminating unit provides light source for the reflective sheet placed on the internal document I/O device. The reflection is then guided to photoelectric converting unit to be converted into electric signals for the computer to read.

Abstract: The invention disclosed a scanner with the function of providing transmitted light source and reflective light source which can be adapted to the location of a floppy diskette driver of a computer. The invention mainly includes a double-function carriage loaded with a transmitted light source and a reflective light source and a gap therebetween for allowing a transparent document tray to pass through. When scanning, a driving device moves the double-function carriage in longitudinal direction along the sheet to complete the exposure of the entire sheet.