Abstract:
Disclosed is an apparatus for scanning a surface with electromagnetic radiation. The apparatus comprises a base plate for supporting a medium said medium having a scanning surface to be scanned, an optical head unit adapted to scan the scanning surface with electromagnetic radiation propagating along an optical axis, a fluid film generation unit connected to the optical head unit and adapted to generate a fluid film between the scanning surface and a gliding surface of the fluid film generation unit for maintaining a predetermined distance between the gliding surface and the scanning surface during scanning operation of the optical head unit across the scanning surface, and control means for controlling the position of the fluid film relative to the optical axis.
Abstract:
Beschrieben wird eine Einrichtung und ein Verfahren zum Abtasten einer Vorlage (10) mit Hilfe einer Kamera (20), die einen Zeilensensor enthält. Es sind Mittel vorgesehen, die die optische Weglänge (w) zwischen der Kamera (20) und der aktuell abzutastenden Zeile während des Abtastvorganges im wesentlichen konstant halten, wobei die Kamera (20) eine Hebe- und Drehbewegung ausführt.
Abstract:
The invention relates to a method that enables scanning a flatbed scanner window by means of close-contact scanning means and right up to an upper scanner window corner-edge, that lies at the device corner-edge, whereto the lower scanner window corner-edge sticks out from underneath that upper scanner window corner-edge, and at which the scanning- means run straight underneath that upper window corner-edge, in their movement.
Abstract:
A rail system made of one or more flexible guide rods, each consisting of a tension rod, is used to support lightweight, mobile devices such as carriages, scanning heads or optical sensors. The rail is configured to permit movement of the mobile device, when driven by an external drive mechanism, along a main scanning direction but prohibits rotational movement of the mobile device. In this fashion, the mobile device remains substantially at the same measured distance from the flat surface of an object, e.g., moving sheet or web, being analyzed.
Abstract:
The invention relates to a large-format scanning system (1) comprising at least two image acquisition elements (2) in a cascade arrangement, at least one platen, preferably a glass plate (3), arranged upstream thereof, and at least two reflector rolls (5) arranged opposite the at least two image acquisition elements (2) in a cascade arrangement, said reflector rolls being pressed against the glass plate (3) and/or a copy (4) to be scanned by means of resilient elements (6) that are arranged at the sides of the reflector rolls (5). According to the invention, the side portions (7) of the reflector rolls (5) are designed such that they touch the glass plate (3) only outside the reading area of the image acquisition elements (2) for the copy to be scanned (4) and that the copy to be scanned (4) rests on the glass plate (3) in the center area (8) of the reflector rolls (5).
Abstract:
The invention relates to a method that enables scanning a flatbed scanner window by means of close-contact scanning means and right up to an upper scanner window corner-edge, that lies at the device corner-edge, whereto the lower scanner window corner-edge sticks out from underneath that upper scanner window corner-edge, and at which the scanning- means run straight underneath that upper window corner-edge, in their movement.
Abstract:
A scanner capable of scanning a curved surface such as a bottle or other cylindrical, or curved surfaced object. In one class of embodiments, the present innovations include a scan head and one or more rollers (preferably two rollers, one active, the other passive) on which a cylindrical object turns in proximity to the head. As the object turns, the head records the image on the surface of the object.
Abstract:
Die Erfindung betrifft ein großformatiges Scanner-System (1 ) mit wenigstens zwei kaskadenförmig angeordneten Bilderfassungselementen (2), wenigstens einer davor angeordneten Vorlagenträger, vorzugsweise eine Glasscheibe (3), sowie mit den wenigstens zwei kaskadenförmig angeordneten Bilderfassungselementen (2) gegenüber angeordneten, Reflektorwalzen (5), die mittels an den Seiten der Reflektorwalzen (5) angeordneter federnder Elemente (6) gegen die Glasscheibe (3) und/oder eine Scan-Vorlage (4) gedrückt werden. Erfindungsgemäß sind die Reflektorwalzen (5) an ihren Seitenbereichen (7) derart ausgebildet, dass sie nur außerhalb des Lesebereichs der Bilderfassungselemente (2) für die Scan-Vorlage (4) die Glasscheibe (3) berühren und dass die Scan-Vorlage (4) im Mittenbereich (8) der Reflektorwalzen (5) an der Glasscheibe (3) anliegt.