Abstract: An image scanning device and an image scanning method are provided. The invention is related to a miniaturized image scanning device and an image scanning method. The miniaturized image scanning device includes a housing, a first driving roller set, an entrance sensor, an image sensor, a reflective light source, a transmissive light source, and a control module. The housing has an entrance and an exit. The first driving roller set is disposed in the housing. The entrance sensor is disposed between the entrance and the first driving roller set. The image sensor, the reflective light source and the transmissive light source are disposed between the first driving roller set and the exit. The control module receives and processes signals outputted from the image sensor and the entrance sensor to control the operation of the image sensor, the first driving roller set, the reflective light source and the transmissive light source.

Abstract: The invention relates to a lighting structure and a scanning device. The lighting structure comprises a light source and a light guide. The light source comprises a plurality of light emitters spaced within a first plane along a first direction. The light guide comprises a plurality of light guiding bodies arranged in parallel. The light guiding bodies form a one-to-one correspondence with the light emitters and have a light entering surface and a light leaving surface which are both a curved surface. The curve of the intersection between each light leaving surface and a first cross-section has a first curvature radius, and the curve of the intersection between each light entering surface and a second cross-section has a second curvature radius, wherein the first cross-section is perpendicular to the second cross-section, and the first cross-section and the second cross-section are both perpendicular to the first plane.

Abstract: A film scanning method is provided. When the film is judged as a negative film, the scanning device sets the scan exposure time for the film according to the base background color of the film. The negative film is scanned for the scan exposure time, wherein, the film passes through the scanning device at one time so as to complete the above judge of the film type and scanning of the film. The film scanning method automatically completes the recognition of film type, performs accurate scanning based on the scan exposure time, expands the dynamic range and reduces noise impacts, so as to obtain a scanned image with higher accuracy.

Abstract: A method of automatically identifying a scan region boundary, used for scanning a document under a non-unified background, includes: reading a reference linear scan data by a scanning device, the scanning device analyzing brightness values in each row of the reference linear scan data and determining a reference range value according to the brightness values in each row; and during scanning a document, the scanning device comparing brightness values of a linear scan data with the reference range value so as to determine the scan region boundary. The method confirms the scan boundary of a document and is not subjected to a backlight element or a document carrier. The method identifies the boundary of a document under a non-unified background, is applicable to scanning transparent and reflective documents and has strong resistance against environmental interference, not only simplifying the scanning device but also enhancing the automatic performance.

Abstract: A film holder is provided. During scanning of a to-be-scanned object, the film holder is inserted into a scanning device. The film holder includes an input portion, a guiding portion and an information window. The input portion has an entrance, a channel and an exit, the channel disposed between the entrance and the exit. During scanning of the to-be-scanned object, the to-be-scanned object passes through the channel. The guiding portion connects to the input portion for guiding the to-be-scanned object. The information window is formed at and through the guiding portion. During scanning of the to-be-scanned object, the side regions of the to-be-scanned object pass through the information window. Functions of the scanning device are effectively augmented; the film is kept from being scratched; the quality of image scanning is kept from being deteriorated; and it is convenient to use the scanning device.

Abstract: A sheetfed film scanning correction method includes: using a film holding member as a film feeding carrier, wherein after the film holding member is inserted into a work position in a scanner, a scanning module of the scanner collects a first correction information under a filmless scanning state and corrects a subsequent scan result according to the first correction information; and setting sheet-feeding rollers of the scanner in idle running as if under a real film scanning state during or prior to collection of the first correction information. By film scanning simulation, the backlight distribution information under the filmless state is real-time collected and used as a correction information, hence implementing the collection of most accurate scan correction information as if under a real scanning environment, particularly applicable to the portable sheetfed film scanner, and eliminating impacts on the correction information caused by temperature change or physical vibration.

Abstract: A film holder is provided. During scanning of a to-be-scanned object, the film holder is inserted into a scanning device. The film holder includes an input portion, a guiding portion and a leveling portion. The input portion has an entrance, a channel and an exit, the channel disposed between the entrance and the exit. During scanning of the to-be-scanned object, the to-be-scanned object passes through the channel. The guiding portion connects to the input portion for guiding the to-be-scanned object. The leveling portion is disposed on one side of the channel. During scanning of the to-be-scanned object, the leveling portion leans against the to-be-scanned object. The sensing unit stably senses the to-be-scanned object. The to-be-scanned object inside the film holder is kept from being scratched and the to-be-scanned object is in smooth move during scanning.

Abstract: A scanning device and a scanning method thereof are provided. The scanning device includes a scanning group, a paper-feed roller and a calibration portion. The scanning group includes a line light source generating module and a scanning module. The line light source generating module includes a point light source, a light-guiding plate and a casing. The light emitted by the point light source along a first direction is converted into a line light source through a light-guiding plate disposed in the casing. The light emitted by the line light source along a second direction is emitted from an opening of the casing. The scanning module, along the first direction, includes a scan document region and a calibration region. The light reflected through the to-be-scanned document is received in the scan document region. The calibration portion disposed on the casing or the paper-feed roller corresponds to the calibration region.

Abstract: The invention is directed to a scanning device including an image sensing module, a first carrier, a second carrier and a holder. The image sensing module includes an image sensor for reading the image of an original document. The first carrier is for carrying the original document in a dynamic scanning mode. The second carrier is for carrying the original document in a static scanning mode. The holder, used for fixing the first carrier and the second carrier, includes a transitional portion disposed between the first carrier and the second carrier. There are a first distance between the image sensor and the bottom surface of the first carrier and a second distance between the image sensor and the bottom surface of the second carrier, wherein the first distance is greater than the second distance. The dual-mode design facilitates the assembly of carriers and avoids the dust entering the scanning device.

Abstract: A film scanning method including the following steps is provided. Firstly, a film including an identification code and an image information area is provided, wherein the identification code is disposed on one side of the image information area along a first direction and has a first identification end and a second identification end along a second direction. Next, a location information of the identification code and a sequence information of the first identification end and the second identification end are checked and recorded. Lastly, the scanned image is adjusted along the first direction and the second direction respectively according to the location information and the sequence information. The invention provides the user with convenience in using a film scanning device without using additional elements.

Abstract: A sheet-fed image scanning method and a scanning device thereof are provided. Firstly, a contact image sensor (CIS) scanning element is equipped with at least two sheet-feeding rollers respectively and passively connected with a driven roller, so that the to-be-scanned sheet is fed into/out between the sheet-feeding rollers and the driven rollers. Then, the to-be-scanned sheet is scanned by the CIS scanning element when the to-be-scanned sheet is fed in, and the driven roller is elastically ascended or descended according to the thickness of the to-be-scanned sheet. The invention enables non-contact or low-friction contact scanning between the scan glass window of the scanning device and the to-be-scanned sheet to avoid the to-be-scanned sheet being scratched or damaged and assure the constant-distance scanning to obtain high-quality scanned image. The position of the scanning element can be adjusted to the optimum scanning focal distance according to the thickness of the to-be-scanned sheet.

Abstract: A cleaning device for scanner includes a handhold portion and a cleaning portion including a window cleaning surface. The handhold portion and the cleaning portion are fixed together, and the thickness of the handhold portion is larger than that of the cleaning portion. The cleaning portion further includes a loading body. The loading body can be a hard or flexible flat board that has a first end, which is fixed with the handhold portion, and a second end. The cleaning process of the cleaning device for the scanner is simple. The window cleaning surface can be replaceable or not and is cheap when manufactured, suitable for being used in any scanner having an immovable scanning module relative to its housing, and more practically, for cleaning the glass window and roller of small size and any portable scanner, so as to maintain scanning quality and scanning precision.

Abstract: A sheet-fed scanning device with cleaning mechanism is provided. The sheet-fed scanning device includes a housing, a scanning module for scanning a fed-in document, and a cleaning curtain whose one end is fixed on the sheet-fed scanning device. The cleaning curtain is disposed in a sheet-fed direction at the front end of the scanning module, and the edge of the other end of the cleaning curtain is elastically in contact with the fed-in document for cleaning a to-be-scanned surface of the fed-in document. The invention is simple in structure and effective in cleaning the fed-in document. The cleaning mechanism does not cost much, but avoids the scanning quality being affected due to the large friction of the cleaning element. The cleaning mechanism ensures long-term cleanness of the to-be-scanned surface of the fed-in document as well as the cleanness of the glass window of the scanning module and the scanning quality.

Abstract: A scanning method and an auxiliary apparatus of auto-executing appended scanning function are disclosed. A specific image, which can be identified by a scanning module of a scanning device, is first loaded on a scanned document or a scanned document carrier, and an appended function denoted by the specific image is predetermined in a processing module of the scanning device. Then, as the scanning device scans the scanned document or the scanned document carrier with the specific image, the scanning device automatically executes the predetermined appended scanning function or processing function according to the scan data of the specific image. The invention can be applied to all kinds of portable scanning device, and especially can be applied to small-sized portable scanning devices for scanning photos, name cards, and so on to realize the direct display and connection with a display device or a storage device.