Abstract: A lamp module comprising a lamp holder and a lamp is provided. The lamp holder has a structure with a curved arc surface such that the ends of the structure are inwardly converging. Light from the lamp impinging upon the curved arc surface is scattered out to a linear dimension greater than the original length of the lamp. The scattered light is projected onto the light-inlet surface of a light-guiding plate so that light emerges from the light-emitting surface as a planar light source.

Abstract: An optical scanner suitable for scanning a vertical object. The optical scanner has a scanning body, a focusing device and a scanning module. The scanning body has a transparent window, the focusing device has an arm, a reflective mirror and a lens. One end of the arm is coupled to the scanning body, and the reflecting mirror and the lens are disposed on the arm. The scanning module is disposed in the scanning body with a shell, a lens and an optical sensor. The shell has a light cone opening, and the lens and optical sensor are disposed within the shell. The image of the vertical object is focused by the focusing device on the transparent window, incident to the scanning module via the light cone opening, and refracted by the lens to form an image on the optical sensor.

Abstract: A light-channeling apparatus for a scanning module is provided. The scanning module uses a first light-guiding tube to channel light from a light source to a scanning region and uses a second light-guiding tube to channel light reflected from the scanning region to a light passage slit on the body casing of the scanning module. As a result, very little light from the light source is dispersed and external light is kept out from the transmission pathway.

Abstract: A scanning method for detecting documents is provided an optical scanning device. The optical scanning device is capable of scanning an object by a reflective scanning mode or a transmittal scanning mode. Then obtaining an image signal of the object by either the reflective scanning mode or a transmittal scanning mode with the retrieved scanning mod. Comparing the image signal with a pre-determined signal will result in an implementation from one of the reflective scanning mode or the transmittal scanning mode.

Abstract: An installation for increasing the usable scanning range along the axial direction of a light source. The installation includes a linear light source and a light-channeling panel. The linear light source has a light axis whose brightness near the mid-portion is higher than the brightness level on either side. The light-channeling panel is adjacent to the linear light source and is capable of concentrating more light in the end sections rather than the mid-portion of the light axis. The light-channeling panel is made from a plurality of panels, each made from materials having different light transparencies. The light transparency of the light-channeling panel near the central section of the light axis is lower than the light transparency at the end sections of the light axis. Hence, after light from the linear light source has passed through the light-channeling panel, a band of light having a more homogenous brightness level than the linear light source is produced.

Abstract: An installation for increasing the usable range along the axial direction of a light source. The installation has a light source and an optical sensor. The light source generates a sense image. The optical sensor further has a sensor and a transparent panel. The sensor is responsible for detecting the image generated by the light source so that a sense image is created. The transparent panel is positioned between the sensor and the light source. A coating on the transparent panel modifies the light transparency along the axial direction of the light source such that light transparency is lower in the middle compared with the ends.

Abstract: A paper-separating plate is adapted for a paper-separating mechanism having a paper-separating roller. The paper-separating plate placed around a side of the paper-separating roller comprises a main body and a cushion. The main body has a surface and a plurality of grooves and the grooves are positioned on the surface. The cushion is positioned on the surface of the main body and covers the grooves. The cushion positioned over the partial grooves is elastically pressed onto the paper-separating roller. The grooves are linear and the direction of extending the linear grooves is substantially parallel with the axis of the paper-separating roller, the linear grooves neighboring one another or each other. Besides, the cushion is made of flexible material and the main body is made of rigid material.

Abstract: The invention discloses a scanning method and apparatus for distinguishing size of image object automatically, which is applied in a procedure for pre-scanning an image object executed by an optical scanner. Wherein, after the pre-scanning procedure, the size of the image object may be obtained immediately, and the procedure of image picking-up may be automated by the method provided by the invention. Further, the invention provides a scaled pattern that is designed in the optical apparatus, thereby a quantified relationship of scale between the scaled pattern and the image object may be obtained. Furthermore, the quantified relationship of scale may be applied for calculating out the size of the image object by using the designation of several patterns relatively. Wherein, the quantified relationship and the relative size of image object may be calculated by predetermined design, and the variation of brilliance may also be calculated during the pre-scanning procedure.

Abstract: A linear guiding mechanism for a platform type optical scanner. A V-shaped track is installed inside a casing and positioned parallel to the travel path of a carrier chassis containing a system of optical devices. The upper section of the V-shaped track has a pair of support surfaces forming an included angle. The V-shaped track supports a positioning wheel or a positioning bump attached to the carrier chassis. The carrier chassis moves along the longitudinal direction of the V-shaped track when driven by a driving system. The V-shaped track may be constructed from a pair of monorails so that the driving belt may move inside the space between the monorails. An additional positioning structure may attach to the interior sidewall of the casing to serve as a retainer for the chassis in an initial position.

Abstract: An installation for increasing the scanning range along the axial direction of the light source. The installation includes a light source and a transparent glass panel. The light source provides a light beam necessary for scanning a document. The transparent glass panel has a coating thereon for lowering light transparency near the mid-portion of the light axis relative to either end.

Abstract: A movable locking device for a scanner is used to affix a moving mechanical part inside the scanner, such as the optical chassis. The scanner uses a hinge set to allow the lifting cover to rotate relatively to the platform. The locking device includes a movable structure member and a buckling groove, in which the movable structure member implemented with a stopping piece is fit with the holding rod of the hinge set, whereby the holding rod is used as the axis of rotation. The buckling groove located on the movable structure member includes a passing groove and a fixing groove, and their shapes and positions are with respect to the stopping piece. The moving directions for the passing groove and the movable structure member are parallel. The movable structure member has an opening at a side. The fixing groove is perpendicular to the moving direction of the movable structure member. When the stopping piece is inserted into the passing groove, the movable structure member is movable.

Abstract: Apparatus for projecting a display interface on a remote screen comprises a means such as scanning device for capturing the display interface comprising a visual pointer appearing on the remote screen. The visual pointer is positioned to reference a subject portion of the display interface and produced by a pointer device. The apparatus comprises another a means such as a projector for projecting display content on the remote screen according to the capturing means. The display content is corresponding to the subject portion of the display interface and directly displayed after the scanning of capturing means.

Abstract: A structure for protecting and guiding a flat cable connected between a traveling module and a protective cover of a scanner is disclosed. The protective structure includes an anti-bending member mounted onto the traveling module for preventing the flat cable from being over-bent at its first end. A guide channel member is disposed on the protective cover under the flat cable and along the moving direction of the traveling module for guiding the flat cable during moving of the traveling module and preventing the flat cable from being swung left and right. The second end of the flat cable is extended into the protective cover via a protective sheath fitted on the cover for preventing the second end of the flat cable from excess bending angle and keep the flat cable smoothly moving without deflection.

Abstract: A scanning method for detecting documents is provided an optical scanning device. The optical scanning device is capable of scanning an object by a reflective scanning mode or a transmittal scanning mode. Then obtaining an image signal of the object by either the reflective scanning mode or a transmittal scanning mode with the retrieved scanning mod. Comparing the image signal with a pre-determined signal will result in an implementation from one of the reflective scanning mode or the transmittal scanning mode.

Abstract: A method for scanning a selected target image area of a document includes steps of establishing in a scanner a first optical path by a first focusing lens; using the first focusing lens to preview the document and select from the whole document image a selected image area; moving the first focusing lens out of the first optical path and move a second focusing lens into the optical path to establish a second optical path in the scanner; and using an optical scanning module in the scanner and the second focusing lens to scan the selected image area of the document to obtain the desired target image.

Abstract: A photographic film scanning device includes an image scanner including a first casing having a transparent top surface and an optical scanning module movably arranged inside the first casing. A film driving assembly includes a second casing having a detachable bottom removably positioned on the top surface of the first casing. A light-transmitting window is defined in the bottom, having a length and a width. A film driving mechanism is arranged inside the second casing, including a film container for containing a length of film and a film spool for windingly receiving the film roll, respectively arranged on opposite longitudinal ends of the window. A motor drives a toothed wheel engaging perforations defined in the film for moving the film across the length of the window. A light source projects light through the film and the window toward the optical scanning module for performing scanning operation of the film.

Abstract: An automatic document-scanning method for scanner is applicable to a document and comprises the following steps: (A) Previewing the document; (B) Performing optical character recognition of the written language on the document and calculating the deflection angle thereof; (C) Scanning the document; and (D) Automatically correcting the image of the scanned written language obtained in step (C) basing on the deflection angle. By above-mentioned method, even a slantingly misplaced document set on a document-loading panel of scanner can be properly amended in its orientation such that a normally oriented document image is providable to the scanner user.

Abstract: A document-loading panel structure for scanner is characterized that a document-loading panel of scanner and an up housing are made of a transparent acrylic material or the like by integral molding; and a chart is either printed or attached on the up housing, a document cover, and/or the document-loading panel.

Abstract: A compensation apparatus for image scan, applied to an optical scanner with a platform, on which an object to be scanned is disposed. The optical scanner has a photosensitive apparatus with a set of scan photosensitive devices and a storage apparatus. When the object is scanned by the set of scan photosensitive devices, a scanned image is obtained and saved in the storage apparatus temporarily. The compensation apparatus has a set of calibration boards, a set of calibration photosensitive devices and an image processor. The set of calibration boards has two calibration boards located at two sides of the platform. The set of calibration photosensitive devices is located at two sides of the set of scan photosensitive device. The image processor is used to extract and compare the calibrated image, so as to adjust the scanned image.

Abstract: A scanner comprises a light source for illuminating a document to be scanned, and a scanning module for scanning the document. The scanning module comprises a light sensor module for receiving light from the document and generating an image signal of the document, and a light delivery module for delivering the light to the light sensor module. The light sensor module is capable of moving along a first direction and capable of being positioned on at least a first position and a second position.