The invention relates to a device for processing documents (document processing system), in particular security documents. The document processing system is provided in particular for the personalization of documents. The documents to be processed can in particular be card-like or book-like documents and in particular security documents, such as identification documents or credit cards, bank cards, membership cards and the like.
A multiplicity of different types of personalized documents, in particular in card form or book form, are known from the prior art. For example, book-like passport documents or individual pages thereof (e.g., the so-called “passport holder page” or paper pages), identification cards and many types of personalized chip cards, such as bank cards, credit cards, identification cards, membership cards, access authorization cards, etc., or personalized (usually card-shaped) labels each belong to the group of personalized documents.
In this context, “personalization” or “personalized” means that the corresponding document contains or carries document-specific information that is typically associated with a holder of the document. For example, in some cases, the information can identify the holder, for example, by means of the holder's name, passport photograph, identity number or other features printed on, otherwise applied onto or introduced into the document or stored therein, in particular in the form of data. In particular, the personalization can be related to an individual person or even to a specific limited group of persons, for example employees of a company.
The processing of the documents to provide them with document-specific and/or non-document-specific information can be carried out in particular by means of printing, by means of engraving or, in particular in the case of a plastic surface, by means of targeted local discoloration of the surface material of the document, in particular in gray shades or gradations thereof, by the action of energy, in particular by means of a suitable laser.
The unexamined German application DE 10 2006 031 024 A1 describes a document processing system and a method for printing security documents. The document processing system comprises a printing unit for printing a security document located in a printing area and a feed unit for successively feeding the security documents into the printing area. The feed unit has a plurality of movable document carriers (document carrier device) for receiving a security document to be printed and moving it into and out of the printing area. The device also has a drive unit for moving the document carriers along a feed direction on various planes arranged perpendicular to the feed direction. Furthermore, it comprises a control unit for controlling the drive device so that the plurality of document carriers are each moved alternately between a receiving position, in which a security document is received, and the printing area. This is done in such a manner that the drive device moves the plurality of carrier devices past each other on the different planes as they move in the feed direction.
In order to increase the counterfeit protection of security documents, security features are incorporated into the document. A widely used security feature is implemented by a so-called “tilt image”, also known by the abbreviations “MLI” or “CLI”. A tilt image that is visible when the document is tilted about the horizontal axis is referred to as MLI, while a tilt image that is visible when the document is tilted about the vertical axis rotated by 90° is referred to as CLI.
Such a tilt image usually has a lens structure along its lateral extent as an optically effective imaging structure and is implemented with an information structure deposited in the lens structure. Thus, the introduced information only becomes visible when light rays are refracted through the lens structure at the correct angle. Depending on the viewing direction, an image is therefore visible or not visible, or only visible in a strongly attenuated form. Such tilt images are applied, for example, as security features on plastic cards and identification documents. The advantage is due to the relatively simple visual verifiability of the tilt images, which is possible even under simple lighting conditions. Such a tilt image is disclosed, for example, in patent specification EP 0 219 012 A2. In order to increase counterfeit protection, relief lenses can also be provided, as disclosed, for example, in patent specification EP 0 216 947 A1.
To produce such tilt images, lasers are used in a document processing system, which can be directed to the document via mirror arrangements in order to apply the tilt image onto the security document. In the case that multiple tilt images are to be applied onto the document at different positions, or that both an MLI tilt image and a CLI tilt image are to be applied onto the document, the document has first to be removed from the document processing system and the corresponding mirror arrangement must be converted (position, and/or orientation change) in order to be able to proceed with the processing.
Often, a test run of the converted arrangement is also necessary to ensure functional capability. The entire process is therefore time-consuming and cost-intensive.
It is therefore the object of the present invention to provide a document processing system which ensures improved handling when processing documents, in particular when inserting security features in the form of tilt images. Furthermore, it is the object of the present invention to provide a method for processing a document by means of the document processing system according to the invention.
This object is achieved by the subject matters of the independent claims. Advantageous refinements of the invention are disclosed in the sub-claims.
The document processing system according to the invention comprises a document carrier device with a document receptacle. Here, the document carrier device is designed to receive and transport a document to be processed, with the transport taking place along a first spatial direction. Within the context of this application, “receiving a document” is to be understood as meaning that the document can be inserted into the document receptacle and, in particular, fixed by the latter. In this case, the document receptacle can be provided in particular as a recess in a surface with the dimensions of the recess corresponding exactly to the dimensions of the document to be received. Such a recess also fixes the document against horizontal displacement on the document carrier device. Other possibilities of positive fixing or, for example, by negative pressure or by the pressure of a mask placed onto the document from above which presses the document into the document receptacle, are also conceivable.
Furthermore, the document processing system has a document processing device which is configured to process a document in a processing area so that a visible element is created on the document. Within the context of the application, the processing of a document is to be understood as the insertion of a visible element comprising personalized document-related data such as name, date of birth or passport photo and/or visible security features such as, in particular, tilt images. In this case, the data to be applied can itself also be provided as a security feature.
The document processing device further comprises a radiation source, at least one first mirror arrangement, and at least one second mirror arrangement. Here, the mirror arrangements are each configured to direct radiation emitted from the radiation source to the document at a specific angle and from a specific direction to produce the visible element. The mirror arrangements are further designed to be preferably moved along a second spatial direction into and out of the processing area in order to be able to redirect the emitted radiation of the radiation source there. Preferably, both mirror arrangements are firmly connected to each other within the processing device and/or arranged at a defined distance from each other on the processing device.
By moving different mirror arrangements into the processing area, differently preset mirror arrangements can be used for processing without removing the document from the document processing system. Thus, for example, the first mirror arrangement can produce a visible element on the document at one position and the second, differently configured mirror arrangement can produce a visible element at another position. Similarly, a CLI tilt image can be applied onto the document using one mirror arrangement and an MLI tilt image can be applied onto the document using the other arrangement. This simplifies the processing of the document, because during the application of different visible elements, no conversion of the mirror arrangements has to be carried out; rather, only one mirror arrangement has to be moved out of the processing area and the other mirror arrangement has to be moved into the processing area.
According to an advantageous embodiment of the invention, the second mirror arrangement is rotated 90 degrees relative to the first mirror arrangement about a vertical axis. As a result, the direction from which the radiation impinges on the document is also rotated 90 degrees about the vertical axis. Thus, the document processing device can be used to create tilt images in which the tilt effect is also rotated 90 degrees. This is particularly unavoidable when creating MLI and CLI elements since an MLI tilt image is also rotated 90 degrees relative to a CLI tilt image. Thus, if a CLI element is created using the radiation redirected by the first mirror arrangement, an MLI element is created on the document using the radiation redirected by the second mirror arrangement, and vice versa. Preferably, the second mirror arrangement, just as the first mirror arrangement, is designed to be alignable.
In another advantageous embodiment of the document processing system according to the invention having a radiation source, the latter emits laser beams into a quadrangular, in particular rectangular, trapezoidal, diamond-shaped or square processing area. The processing area is defined here by the surface that can be reached by the laser beams of the radiation source. In this case, the document to be processed also has a quadrangular, in particular rectangular, square, parallelogram shape, with the processing area being rotated relative to the document by a defined angle, in particular 45 degrees. Due to the rotation, maximum utilization of the processing area on the document can be achieved, in particular in conjunction with the use of mirror arrangements through which the laser beams are reflected onto the document.
Preferably, the two mirror arrangements are designed to be moved along a second spatial direction into the processing area. In particular, both mirror arrangements are provided on a device which can be moved along the second spatial direction in such a manner that either one or the other mirror arrangement is located in the processing area.
In an advantageous refinement of this embodiment of the invention, the first spatial direction along which the document is transported does not correspond to the second spatial direction in which the mirror arrangements are moved. Thus, the first and second spatial directions are not identical. In a particularly preferred embodiment, the first spatial direction is perpendicular to the second spatial direction. By such an embodiment, the document can be positioned on the document carrier device in the processing area in such a manner that a visible element can be produced by the processing device on any position on the document without removing the document from the document processing system. In doing so, it is also possible to apply multiple visible elements onto multiple positions on the document. The change of the position of the visible element to be produced along the first spatial direction is carried out here by the movement of the document carrier device, while the change of the position of the visible element along the second spatial direction can be carried out by the movement of the mirror arrangements.
In an alternative embodiment of the invention, the first spatial direction along which the document is transported by means of the document carrier device corresponds to the second spatial direction in which the mirror arrangements are moved. The two spatial directions are thus identical. Consequently, both the mirror arrangements and the document carrier device move along the same spatial direction. This leads to a particularly slender design of a document processing system.
In an advantageous embodiment of the invention, the mirror arrangements are designed to be alignable in such a manner that the position of the visible element on the document is shifted. In the context of the application, aligning the mirror arrangement does not mean moving the mirror arrangements, but rather rotating at least one mirror of the arrangement such that the radiation through the mirrors impinges on the document in a different position, or changing the height of the mirror, thus, changing the distance from a mirror of the mirror arrangement to the document in the vertical direction. By means of the alignment, small changes to the image position on the document can be made without having to move another mirror arrangement into the processing system. Alignability of the mirror arrangements is particularly advantageous in embodiments in which the first and second spatial directions are identical, thus, in which the document carrier device and the mirror arrangements can be moved in the same direction. The alignment also allows the position of the visible element on the document to be changed in a direction different from this direction. This can significantly increase flexibility when selecting the position of the visible element on the document.
In another advantageous embodiment of the invention, the processing device further comprises other processing tools. Like the mirror arrangements, these can be moved along a second spatial direction into the processing area. Thus, processing operations of the document within the document processing system which, for example, apply visible elements or security features onto the document using other processing methods, are also conceivable. Other processing methods can include, for example, embossing, engraving or printing.
In an advantageous embodiment of the invention, the document carrier device comprises a heating device designed to dissipate heat to the document received by the document carrier device.
By introducing heat, for example, drying processes can be accelerated, or better controlled, whereby both the processing speed and the processing quality of the document processing device can be improved.
Particular preferred is such an embodiment if the heating device comprises an actuator which is adapted to cause a relative movement between a heated heat conducting element and the document receptacle. By means of the relative movement it is possible to switch between two operating modes, wherein in a first operating mode, the heat conducting element extends through one or more recesses in the document receptacle to transfer heat generated by the heating device to the document at least in sections. In the second operating mode, the heating element has a greater distance from the document compared to the first operating mode so that no or only an insignificant amount of heat is transferred to the document.
In this manner, the heating element can remain permanently heated and can be set to the first operating mode for processing steps in which heating is required, and can switch to the second operating mode for processing steps in which heating is not required. As a result, heating and cooling phases can be skipped and the processing of the documents can be accelerated.
Furthermore, advantageous is an embodiment of the document processing system comprising an adjustment device which is designed to change the position and alignment of the at least one first mirror arrangement and/or the at least one second mirror arrangement in such a manner that the corresponding defined angle at which the radiation emitted by the radiation source impinges on the document is changed without changing the position of impingement of the radiation on the document. By means of the adjusting device, the angle of incidence of the radiation on the document can be adjusted, and thus the document processing system can be adjusted to meet different requirements of the document to be processed, which are based, for example, on the choice of material or customer requirements. In addition, a conversion to different products is simplified by adjusting the mirror arrangements. Furthermore, such an embodiment can prevent the need to adapt the software to generate a tilting image since there is a symmetrical structure of a mirror arrangement consisting of two mirrors facing each other for generating the tilting image.
Particularly preferred is such an embodiment if the adjusting device has receptacles, in particular in the form of openings, which are designed to receive corresponding counter elements arranged on the at least one first mirror arrangement and/or at least one second mirror arrangement (22) for fastening the corresponding mirror arrangement. By such an embodiment, a possibility of the adjusting device can be provided which is easy to operate and minimizes the risk of incorrect operation. Moreover, it is technically easy to implement.
The method according to the invention for processing a document by a document processing system includes multiple steps. First, the document carrier device of the document processing system is moved to a receiving position in which a document to be processed is placed on the document receptacle. Subsequently, the document carrier device is moved along a first spatial direction to a processing position within a processing area of the document processing system. Further, moving a first mirror arrangement into the processing area is carried out so that radiation emitted from a radiation source in the processing area is directed to the document via the first mirror arrangement to create a visible element. After the visible element is created on the document, moving a second mirror arrangement into the processing area is carried out so that radiation emitted from the radiation source in the processing area is directed to the document via the second mirror arrangement to create another visible element. After processing, the document carrier device is moved to an output position in which the document is removed from the document receptacle.
The features of advantageous embodiments of the device described with respect to the device according to the invention apply equally to features of advantageous embodiments of the method according to the invention.
In the following, embodiments and advantageous aspects of the present invention will be explained in more detail with reference to the accompanying figures. In the figures:
The document receptacle 121 is designed in the present case such that a book-shaped document 51, such as a passport, can be received by it. It can also have a gap in the center into which the spine of a book-like document 51 can be received. A card position 124 is indicated on the left side of the document receptacle 121. This card position 124 can be provided, for example, by a further recess in the document receptacle 121. It has the standardized format of common credit cards, identification cards, membership cards and the like. By means of the corresponding recesses provided, the card or the book-shaped document can be fixed on the document receptacle 121, at least in the lateral direction, and can thus be secured against slipping.
Depending on the document to be processed, it is inserted either into the card position 124 or the document receptacle 121, wherein the processing can be carried out only in the processing face 122.
In an advantageous embodiment, a book-shaped document is placed on the document receptacle 121 and pressed from above onto the document receptacle 121 by a mask (not shown) which has a recess for the processing face 122 of the document, until the mask engages in a specific position, thus fixing the document flat on the document receptacle 121. Both sides of the document receptacle 121 are independently spring-loaded. Depending on the number of pages of the book-shaped document, one side of the document receptacle 121 is possibly more heavily loaded by the application of the mask, but this can be compensated for by the independent mounting of the two sides, so that the surface of the document lies flat at a defined height for processing.
In order to clamp a card-shaped document in the document carrier device, a card adapter is required. The latter has the outer dimensions of the book-shaped document and is also clamped onto the document receptacle 121. The card-shaped document is then inserted into this adapter. Slight errors when inserting the documents are compensated for by software. In the course of this, a camera measures any possible twisting or incorrect position and forwards it to the software. The software compensates for the inaccuracies and forwards the corrected data to the processing system.
Within the processing face 122, a heating element 126 is indicated which is designed to apply heat locally to the document to be processed. This can be beneficial for individual processing steps, for example for drying ink or the like. Therefore, the heating element 126 is preferably provided in the areas where ink is applied during processing. This is usually the case for security-critical documents when displaying a passport photo. Thus, the heating element 126 is preferably located at the place of a passport photo of a document.
In this case, the mirror arrangement 21 is arranged in the first configuration of
In contrast, the arrangement of the first mirror arrangement 21 in
In this regard, changing the arrangement of the mirror arrangement 21 involves some effort in prior art document processing systems 10. For example, the document 51 must first be removed before the arrangement of the mirror arrangement 21 can be changed. Often, an additional calibration or test run must be carried out to verify the new arrangement, often making the processing and creation of two different visible elements 551a, 551b at two different positions a lengthy process.
In the embodiment shown, the document carrier device 12 is movable along a first spatial direction and the first mirror arrangement 21 is movable along a second spatial direction, the two spatial directions being perpendicular to each other. Thus, the position of the visible element 551 on the document is determined in one spatial direction (into the drawing plane) by the position of the document carrier 12 and in the other spatial direction (in the drawing plane from left to right) by the position of the first mirror arrangement 21. Thus, the visible element can be applied onto any position of the document.
The document processing device 11 further comprises a second mirror arrangement 22, which can also be moved into the processing area. According to the drawings, the processing area is designated by reference sign 82a if the first mirror arrangement 21 is located in the processing area (
Here, the two mirror arrangements 21, 22 are arranged rotated by 90 degrees about a vertical axis, whereby the emitted radiation is also directed onto the document rotated by 90 degrees. Thus, in the embodiment of the invention shown, both CLI and MLI elements can be applied onto the document. By different positioning of the mirror arrangements 21, 22 in the processing area 82a, 82b in one spatial direction and by different positioning of the document by the document carrier device 12 in the other spatial direction, the visible elements can be applied onto the document at different positions. In doing so, the mirror arrangements 21, 22, as shown in
Advantageously, the mirror arrangements 21, 22 can be aligned, that is, either changed in their height (vertical distance to the document) or, for example, rotated about their vertical or horizontal axes.
The processing device 11, or the mirror arrangements 21, 22 contained therein, can also be moved in such a manner that the radiation emitted by the radiation source 54 is directed directly onto the document. This would correspond to a third configuration, not shown, in which the first mirror arrangement 21 is located on one side and the second mirror arrangement 22 on the other of the processing area 82a, 82b. Likewise, embodiments are conceivable in which other processing tools such as engraving tools or the like are contained in the processing device 11, which can also be moved into the processing area 82.
In the document receptacle 121 of the document carrier device 12, a heating device 126 is provided, which is indicated in
By means of the embodiment shown, various tilt images can be applied onto the document due to the possibility of moving the mirror arrangements 21, 22 and the document carrier 12 without costly changes to the arrangement, and the position of the tilt images within the processing face 122 can be freely selected.
Above the document processing device 11, a radiation source 54 is provided which is capable of emitting laser beams within a processing area 82. In this case, the processing area 82 has a rectangular cross-sectional shape, in particular a square cross-sectional shape in the embodiment shown, and is indicated by the dashed lines (see also
Furthermore, the radiation emitted in the processing area 82 can be directed to a document 51 by a first mirror arrangement 21. The first mirror arrangement 21 consists of two mirrors facing each other which are arranged between two support elements 111 of the document processing device 11. The mirror arrangement 21 is arranged parallel to the longitudinal direction of the quadrangular, in particular parallelogram-shaped document 51. The carrier elements 111 each have openings into which corresponding counter elements arranged on the mirrors engage. The counter elements can be removed from the openings and inserted into other openings provided for this purpose in order to change the position of the corresponding mirror and, at the same time, its orientation. The openings, in conjunction with the counter elements, are thus to be understood as an adjustment device 112.
A radiation 81 emitted by the radiation source 54 in the processing area 82 is directed through the first mirror arrangement 21 onto the document 51. The mirrors of the first mirror arrangement 21 are arranged symmetrically, that is, they are located at the same height (position) above the document 51 and reflect the radiation 81 at the same angle onto the surface of the document 51. This angle is referred to as the first defined angle α and determines at which angle α first visible element 551a imprinted in this manner can be seen. The choice of the angle depends in particular on the choice of the material of the document 51 as well as the specific customer requirements.
Comparing the two configurations shown in
The visible element 551a, 551b to be created is always produced at the same position in relation to the document processing device 11. The position of the visible element 551a, 551b to be created on the document 51 is set in a coordinate direction of the document by the document carrier device 12. In doing so, the visible element 551a, 551b to be produced is produced centrally below the document processing system 10. In this manner, it can be achieved that no adjustment of the software is necessary when the mirror alignment and position are changed. As a result, a simple changeover of the document processing system 10 to different documents 51 with different requirements and materials can be implemented.
With reference to
By means of the described embodiment of the adjusting device 112, the corresponding mirror can thus be positioned at the correct height and also with the correct angle since the orientation can also be influenced by the predetermined openings.
Furthermore, with reference to
Number | Date | Country | Kind |
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10-2022 112 628.5 | May 2022 | DE | national |
10-2022 112 629.3 | May 2022 | DE | national |