Abstract: A device for scanning a document is provided. A document placed on a support surface is scanned line by line by a camera that is provided with an optoelectronic line sensor, and electric signals are produced. The line sensor includes a plurality of image recording elements disposed in a linear orientation. A lens system is used to image the light reflected by the document to be captured onto a part of the image recording elements.

Abstract: A device for recording a number of images of disk-shaped objects (6), which is provided with at least two lighting device (8), which are designed so that the light exiting the lighting devices (8) is spectrally variable. A single recording device (12) is arranged in relation to the disk-shaped object so that the recording device (12) simultaneously records a number of spectrally variable images of the disk-shaped object (6).

Abstract: A device for scanning a document is provided. A document placed on a support surface is scanned line by line by a camera that is provided with an optoelectronic line sensor, and electric signals are produced. The line sensor includes a plurality of image recording elements disposed in a linear orientation. A lens system is used to image the light reflected by the document to be captured onto a part of the image recording elements.

Abstract: A device, method and system is provided for illuminating an object. A light source such as an LED and in particular a polychromatic LED is positioned at a first focal line of an elliptical mirror that has two focal lines. The mirror is shaped as a portion of an inner generated surface of an elliptical cylinder. The object to be illuminated is positioned at the second focal line of the mirror. A plurality of such mirrors may be provided positioned with a common second focal line. A cascade of mirrors may be positioned with a common second focal line at a first focal line of a concentrating mirror. The LEDs may be mounted on one or both sides of a circuit board.

Abstract: In a method for processing image data, at least one section of a form (10) is raster scanned and converted into a digital image with image points (22, 24, 26), the color of each image point (22, 24, 26) being represented as tone H, saturation S, and brightness B. Using fuzzy technology, the membership of the image points (22, 24, 26) ant their colors in color categories (UB, SF, BF) is determined by way of membership functions and a gray value GW is allocated to each image point (22, 24, 26) depending on the thus determined color category (UB, SF, BF).

Abstract: Device and method are provided for scanning an original copy using a camera containing a line sensor. During the scanning process, an optical path length between the camera and each line being currently scanned is maintained substantially constant.

Abstract: A device, method and system is provided for illuminating an object. A light source such as an LED and in particular a polychromatic LED is positioned at a first focal line of an elliptical mirror that has two focal lines. The mirror is shaped as a portion of an inner generated surface of an elliptical cylinder. The object to be illuminated is positioned at the second focal line of the mirror. A plurality of such mirrors may be provided positioned with a common second focal line. A cascade of mirrors may be positioned with a common second focal line at a first focal line of a concentrating mirror. The LEDs may be mounted on one or both sides of a circuit board.

Abstract: A diaphragm for an objective for imaging an image original to be scanned line-by-line onto an optical CCD sensor is provided in the optical part of a scanner device for automatic optical character recognition. The diaphragm has a diaphragm aperture expanded in a direction proceeding orthogonally relative to the CCD sensor. The shape of the diaphragm aperture deviates from a circular diaphragm aperture shape.