Abstract: A carrier structure is provided, in which at least one positioning area is defined on a chip-placement area of a package substrate, and at least one alignment portion is disposed on the positioning area. Therefore, the precision of manufacturing the alignment portion is improved by disposing the positioning area on the chip-placement area, such that the carrier structure can provide a better alignment mechanism for the chip placement operation.

Abstract: An optical carriage of scanner has a mirror assembly and a device assembly, the mirror assembly has a mirror mount, some mirror holder, and some supporters, and the device assembly has a chassis. In this invention, the mirror assembly and the device assembly are mechanically connected after separately formation. Further, to ensure correct shape of these mirror holders and these supporters, they could be formed by metal punch, plastic ejection, or plastic process.

Abstract: A lens module with adjustable magnification is installed in a scanner. The lens module can be used to collect and focus a scanning light beam to form an image onto at least one optical sensing device, which may be replaceable. The lens module includes a primary lens and at least one correction lens. The correction lens is with respect to the size of the optical sensing device, such as the total length of the effective pixels, and is installed at a location in front of the light collection end or between the image output end and the optical sensing device. This allows the size of the image focused by lens module to match with the size of the optical sensing device, so that the image can be captured by the optical sensing device.

Abstract: A back-light module for an image scanning device includes a casing, a pair of tubular lamps, a light guide plate, and a frosted transparent plate. The image scanning device includes a document supporting plate and an optical scanning module movable in a longitudinal direction. A calibration of illumination with the back-light module is done by (1) activating the back-light module to project light onto the optical scanning module, (2) driving the optical scanning module in the longitudinal direction, (3) obtaining illumination signals associated with selected pixels of a longitudinally-extending calibration zone formed on the document supporting plate, (4) comparing each illumination signal with a reference to obtain a result and manipulating the result to obtain a calibration parameter, and (5) calibrating the illumination of pixels of an image with the corresponding calibration parameters in scanning a transmissive original document.

Abstract: A vertically oriented image scanning device includes a chassis with a vertically oriented scanning window and a flap cover pivoted to the chassis. A document support flange is formed along a lower edge of the scanning window for aligning a document with respect to the scanning window. A thin metal plate has opposite edges attached to an inner face of the flap cover and forms a convex configuration for elastic deformation and thus applies a force to retain the document against the scanning window. The convex configuration also helps guide the document into position. Alternatively, a resilient pad replaces the thin metal plate for applying a force to the document.

Abstract: A method and system for scanning comprises rotating a scanning chassis of an optical scanner to create an acute angle between the scan line and a scanning direction, such that the scanning chassis has two ends, and moving the scanning chassis in the scanning direction and with the acute angle between the scan line and the scanning direction, both two ends of the scanning chassis being moved in the scanning direction, while one of the two ends is moved more slowly than the other one so that the scanning chassis is made to be rotated with the acute angle.

Abstract: A height adjustment structure for an image-scanning device. The scanning device has a guiding rod, an optical system and a document panel. The guiding rod and the document panel are fixed relative to each other. The optical system includes a box body and an axial rod bearer that can slide along into the guiding rod. The height adjustment structure includes a first positioning section and a second positioning section. The first positioning section is attached to one side of the box body and the second positioning section is attached to one side the axial rod bearer that faces the first positioning section. The first positioning section and the second positioning section has hooking mechanism, screwing mechanism or teeth-meshing mechanism for fixing the box body relative to the axial rod bearer and hence setting the distance from the box body to the document panel.

Abstract: A back-light module for an image scanning device includes a casing, a pair of tubular lamps, a light guide plate, and a frosted transparent plate. The image scanning device includes a document supporting plate and an optical scanning module movable in a longitudinal direction. A calibration of illumination with the back-light module is done by (1) activating the back-light module to project light onto the optical scanning module, (2) driving the optical scanning module in the longitudinal direction, (3) obtaining illumination signals associated with selected pixels of a longitudinally-extending calibration zone formed on the document supporting plate, (4) comparing each illumination signal with a reference to obtain a result and manipulating the result to obtain a calibration parameter, and (5) calibrating the illumination of pixels of an image with the corresponding calibration parameters in scanning a transmissive original document.

Abstract: A vertically oriented image scanning device includes a chassis with a vertically oriented scanning window and a flap cover pivoted to the chassis. A document support flange is formed along a lower edge of the scanning window for aligning a document with respect to the scanning window. A thin metal plate has opposite edges attached to an inner face of the flap cover and forms a convex configuration for elastic deformation and thus applying a force to retain the document against the scanning window. The convex configuration also helps guiding the document to position. Alternatively, a resilient pad replaces the thin metal plate for applying a force to the document.

Abstract: An optical carriage of scanner has a mirror assembly and a device assembly, the mirror assembly has a mirror mount, some mirror holder, and some supporters, and the device assembly has a chassis. In this invention, the mirror assembly and the device assembly are mechanically connected after separately formation. Further, to ensure correct shape of these mirror holders and these supporters, they could be formed by metal punch, plastic ejection, or plastic process.

Abstract: A back-light module for an image scanning device includes a casing, a pair of tubular lamps, a light guide plate, and a frosted transparent plate. The image scanning device includes a document supporting plate and an optical scanning module movable in a longitudinal direction. A calibration of illumination with the back-light module is done by (1) activating the back-light module to project light onto the optical scanning module, (2) driving the optical scanning module in the longitudinal direction, (3) obtaining illumination signals associated with selected pixels of a longitudinally-extending calibration zone formed on the document supporting plate, (4) comparing each illumination signal with a reference to obtain a result and manipulating the result to obtain a calibration parameter, and (5) calibrating the illumination of pixels of an image with the corresponding calibration parameters in scanning a transmissive original document.

Abstract: An optical carriage of scanner has a mirror assembly and a device assembly, the mirror assembly has a mirror mount, some mirror holder, and some supporters, and the device assembly has a chassis. In this invention, the mirror assembly and the device assembly are mechanically connected after separately formation. Further, to ensure correct shape of these mirror holders and these supporters, they could be formed by metal punch, plastic ejection, or plastic process.

Abstract: A height adjustment structure for an image-scanning device. The scanning device has a guiding rod, an optical system and a document panel. The guiding rod and the document panel are fixed relative to each other. The optical system includes a box body and an axial rod bearer that can slide along into the guiding rod. The height adjustment structure includes a first positioning section and a second positioning section. The first positioning section is attached to one side of the box body and the second positioning section is attached to one side the axial rod bearer that faces the first positioning section. The first positioning section and the second positioning section has hooking mechanism, screwing mechanism or teeth-meshing mechanism for fixing the box body relative to the axial rod bearer and hence setting the distance from the box body to the document panel.

Abstract: A back-light module for an image scanning device includes a casing, a pair of tubular lamps, a light guide plate, and a frosted transparent plate. The image scanning device includes a document supporting plate and an optical scanning module movable in a longitudinal direction. A calibration of illumination with the back-light module is done by (1) activating the back-light module to project light onto the optical scanning module, (2) driving the optical scanning module in the longitudinal direction, (3) obtaining illumination signals associated with selected pixels of a longitudinally-extending calibration zone formed on the document supporting plate, (4) comparing each illumination signal with a reference to obtain a result and manipulating the result to obtain a calibration parameter, and (5) calibrating the illumination of pixels of an image with the corresponding calibration parameters in scanning a transmissive original document.

Abstract: A height adjustment structure for an image-scanning device. The scanning device has a guiding rod, an optical system and a document panel. The guiding rod and the document panel are fixed relative to each other. The optical system includes a box body and an axial rod bearer that can slide along into the guiding rod. The height adjustment structure includes a first positioning section and a second positioning section. The first positioning section is attached to one side of the box body and the second positioning section is attached to one side the axial rod bearer that faces the first positioning section. The first positioning section and the second positioning section has hooking mechanism, screwing mechanism or teeth-meshing mechanism for fixing the box body relative to the axial rod bearer and hence setting the distance from the box body to the document panel.

Abstract: A light converging device for a light source, which is suitable for use in an optical scan module. The light source has at least a lamp, while the light converging device has a lamp holder and an adjusting member. The lamp holder has an arc notch for holding the lamp, and the curvature of the arc notch can be adjusted freely. The adjusting member is mounted on the lamp holder for adjusting the curvature of the lamp holder.

Abstract: An optical carriage of scanner has a mirror assembly and a device assembly, the mirror assembly has a mirror mount, some mirror holder, and some supporters, and the device assembly has a chassis. In this invention, the mirror assembly and the device assembly are mechanically connected after separately formation. Further, to ensure correct shape of these mirror holders and these supporters, they could be formed by metal punch, plastic ejection, or plastic process.

Abstract: A lens module with adjustable magnification is installed in a scanner. The lens module can be used to collect and focus a scanning light beam to form an image onto at least one optical sensing device, which may be replaceable. The lens module includes a primary lens and at least one correction lens. The correction lens is with respect to the size of the optical sensing device, such as the total length of the effective pixels, and is installed at a location in front of the light collection end or between the image output end and the optical sensing device. This allows the size of the image focused by lens module to match with the size of the optical sensing device, so that the image can be captured by the optical sensing device.

Abstract: A light source with a function of condensing light comprises a radiating area, a penetrable layer, and a condensing layer. The penetrable layer comprises a first inner tube and a first outer tube, and any cross section, which is vertical to the central axis of the light source, of the first inner tube and the first outer tube has the same first cross-section curvature. The condensing layer couples to the penetrable layer and together they cover the radiating area inside the light source. Any cross section, which is vertical to the central axis, of the second inner tube of the condensing layer has the first cross-section curvature; the cross section, which is vertical to the central axis, of the second outer tube of the condensing layer has at least a second cross-section curvature, and the second cross-section curvature is greater than the first cross-section curvature.

Abstract: A method for changing a scanning resolution is fitted to an optical scanner having a scanning chassis. The scanning chassis scans based on a scan line and moves in a scanning direction. The method comprises two steps, wherein Step 1 is to rotating the scanning chassis to create an acute angle between the scan line and the scanning direction, and Step 2 is moving the scanning chassis in the scanning direction and with the acute angle between the scan line and the scanning direction.