DE102011075343A1 - System for evaluating product copy at control center of printing machine, has sensor unit in area of storage for determining actual value of light intensity, and illuminant of incident light is provided at storage in area of senor unit - Google Patents

Abstract

The system has a sensor unit (37) in the area of storage (03) for determining an actual value of a light intensity (E-ist), and an illuminant of an incident light is provided at the storage in the area of the senor unit. A monitor (11) is provided for displaying a printed image of the product copy (04) that is simulated by a print image reference (06). An electronic circuit or program routine is provided, through which an adaptation of intensity emitted by a lamp (36) takes place with respect to a predetermined light intensity in an operation mode of the system.

Description

The invention relates to systems for the evaluation of a product copy at the control station of a printing press according to the preamble of claim 1 or 3.

By the EP 2 045 711 A2 a proofing system for printed products is disclosed, which can be designed as a hardproof or softproof system. The image data to be displayed on the proofing system is generated using a description of the printing machine to be simulated and a description of the color reproduction of the proofing system. For the consideration of the description of the printing machine to be simulated, printing parameters comprehensive descriptions are selectable.

The WO 02/100644 A1 relates to a method for the selection of substrates, wherein for various substrates printing properties stored and certain substrates are selectable. To display a simulated printing result, the printing process and the printing material are selected and taken into account.

The EP 1 880 850 A2 discloses a method and a device for generating a color reference for a print image, wherein in the determination of the display data for the monitor, a correction for a different from a target transmission characteristic of a RIP process actual transfer characteristic takes place.

In the EP 1 889 721 A2 discloses a control station of a printing machine with a monitor and a standard light source, wherein a luminous intensity or luminous intensity of the lamp is variable to adjust the luminosity to the brightness achievable on the monitor or the contrast via a dimmer.

By the EP 2 113 389 A2 For a standard lighting system, at least two modes for the intensity or intensity are provided, of which at least one of the modes provides a defined setting of the luminous intensity.

The DE 10 2004 049 604 A1 discloses an illumination system wherein the composition of the wavelengths of the radiated light is variable. In this case, for example, LEDs are provided.

By the DE 10 2008 025 874 A1 is a device for visual color matching of printed copies with one or more lights known, the lights have as light sources LEDs. In one embodiment, LEDs in the colors white, red, green, blue and UV are provided per luminaire.

In the EP 1 970 198 A2 At least one operating element of a softproof system is integrated in the control console of the control station.

The invention has for its object to provide systems for the evaluation of a product copy at the control station of a printing press.

The object is achieved by the features of claim 1 and 3.

The achievable with the present invention consist in particular that a particularly comfortable and variable systems for the assessment of a product copy is created at the control station of a printing press.

Compared to hard proofing solutions, there is no need for additional work steps to reach a reference.

In a version with variable light intensity of a luminaire, special requirements for the matching in each case optimal light conditions can be achieved. This applies equally to different types of light. In an advantageously provided program routine, illuminance in the area of the deposit can be kept constant despite possibly fluctuating environmental conditions.

Of particular advantage is also an embodiment, wherein by one or more program routines a correct association between lighting and monitor display is created. This can be done in a variant by parallel placement as a result of a change caused by the operator. In one or more advantageous operating modes, a corresponding change in the monitor display (monitor control and / or image data adaptation) can take place alternately when the illumination conditions change (type of light and / or illuminance / intensity). Details - also with regard to further advantages - result in the description part of the embodiments.

In addition, functionalities for color measurement and / or for checking or calibrating the monitor can be of particular advantage. This ensures reliable work.

In an advantageous embodiment, the monitor is designed to be touchscreen capable, with functionalities and / or modes of the system to be carried out on softkeys. This makes the control center even clearer and the operation of the system even more direct.

Embodiments of the invention are illustrated in the drawings and will be described in more detail below.

Show it:

1 a schematic representation of the interaction of a soft proofing system with a printing press and a pre-press;

2 a schematic representation of a portion of the illustration 1 ;

3 an embodiment of a light of the softproof system in a first (a) and a second (b) embodiment;

4 a further embodiment of a lamp of the softproof system;

5 an embodiment of a control station of Softprüfsystems;

6 a schematic representation of a program mask for the functionality of a monitor test / calibration;

7 a schematic representation of a program mask for the functionality of a color measurement;

8th a first example of the representation of multiple fields of a touchscreen enabled monitor;

9 a second example for the representation of multiple fields of a touchscreen capable monitor;

10 a schematic representation of the interaction of a transformation process with a process module to provide a color profile;

11 a schematic representation of the operation of an electronic circuit and / or program routine;

12 a schematic representation of the operation of another electronic circuit and / or program routine;

13 a schematic representation of the operation of another electronic circuit and / or program routine;

14 a schematic representation of the operation of another electronic circuit and / or program routine;

15 a schematic representation of the operation of another electronic circuit and / or program routine;

16 a schematic representation of the operation of another electronic circuit and / or program routine.

A printing press 01 is at least a control room 02 for control by operating personnel, at least for controlling a color reproduction assigned. At the control room 02 is at least a filing 03 , z. B. tray table 03 , provided on which in a designated storage area a through the printing press 01 printed product copy 04 , z. B. a printed sheet as a sheet-fed press 01 trained printing press 01 or printed pages of a preferably as a web-fed rotary printing press 01 , in particular newspaper printing press, manufactured exemplar, is to be examined by the operating personnel or assessed. The product copy to be reviewed 04 - Which is removed for example during production from the product stream - is by the operator with a printed image reference 06 , z. B. a so-called. Proof 06 , checked for color rendering (eg, hue, brightness, saturation).

For deviations between product copy 04 and proof 06 are available to the operating personnel at the control desk 02 one or more interfaces 07 ; 08 ; 09 available to counteract the deviation by appropriate control commands. For example, at least actuating elements of a zone keyboard 07 in the storage area of the shelf 03 provided by the operation of the color flow in a known manner is zonal increase or decrease. Such a zone keyboard 07 may instead or additionally as so-called. Softkeys on a display device 09 , z. B. a monitor 09 , z. Eg control panel monitor 09 , be provided. The softkeys can be displayed as fields of a corresponding mask on a touch-sensitive monitor or as one on the control console 02 provided control panel 08 be provided operable elements. The control panel 08 includes z. B. a keypad and preferably a means for pointer control (eg., Computer mouse or trackball). A control computer 05 can be provided, via which, for example, a command and / or data exchange of control room components with each other and / or with a machine control 15 ie the control of the printing press 01 as a result of programs and / or commands, executing computing and data processing systems 15 , can take place or is realized.

In contrast or in addition to the conventional comparison with a hard proof, ie one Comparison with a printed printed image reference 06 , here is the comparison of the product copy 04 with a softproof 06 provided print image reference 06 intended. The softproof 06 represents the reproduction of the print image to be evaluated on a display device 11 , z. B. a monitor 11 Depending on the type of printing press (sheet-fed press 01 , Web press 01 - for newspaper or commercial printing) and / or printed product (printed sheet or product with book structure) or current printing application (newspaper, (semi-) commercials), the displayed and to be compared soft proof 06 refer to different reference sizes of the total reproduced by the machine printing surface. So here at z. For example, newspaper printing considered one-page wide soft proofs 06 single-page or double-wide soft proofs 06 or at the same time two soft proofs 06 of two product pages lying side by side in the opened product and with the respective corresponding pages of the product copy 04 be compared. In commercial or commercial printing, a web-width printed image may be displayed and with a web-wide product copy 04 be compared. For sheetfed printing, sheet-width soft proofs are preferred 06 displayed and compared with overlaid sheets.

The softproof 06 Ideally, this simulates that with the assigned output device, in this case the assigned press 01 , preferably taking into account special printing conditions, achievable print result for a printed image by the printing press 01 to be printed on the basis of a print template. As a print template should be understood here a print image description, which a RIP process 12 a pre-press 13 as an input. This digitally described print template present at this point may already have color limitations and / or differences to an original, possibly underlying, underlying original as a whole or in parts caused by upstream recording and / or data processing stages. For example, this can be defied by color space transformations, if necessary, taking into account the color spaces of the upstream recording and output methods, for example, especially in the case of images to be integrated. In the present case, however, it is not intended to deal in detail with an optionally upstream processing or layout level, but mainly with regard to processing processes from the time of entry into the prepress stage 13 or in the RIP process 12 are considered, wherein the digital artwork are formed as the print image descriptive data d (F1) of a certain format F1 and the prepress 13 and / or the RIP process 12 be supplied. The data d (F1) can, for. B. by one of the prepress 13 or the RIP process 12 to be supplied, containing a print image description file d (F1) or a set of files containing a total of the print image description d (F1) to be formed. The in the RIP process 12 The leading file d (F1) can also be the result of an upstream layout process 14 be there, where there are possibly pre-separations and / or Vorkorrekturen, z. B. overfills, may have flowed for the downstream printing process. The in the RIP process 12 guided file d (F1) can be z. B. based on a Postscript or PDF file format. It can color information in terms of a the RIP process 12 upstream input device still device-dependent representation, or in an already by transformation based on a corresponding color profile P _ICCx , short profile P _ICCx , z. B. ICC profile P _ICCx , the input device in a standard _{color space} (eg PCS) obtained device-independent representation.

Preferably, the data exchange is within the processes of the prepress 13 and advantageously also with and / or in the upstream layout process 14 , as well as possibly a data exchange via interfaces to other potential or actual users of the print image description (eg clients connectable via data transmission paths such as a customer and / or the publishing house and / or a distributed printing group and / or an editor) Principle of the so-called "color management". This works on the principle that a transfer of the color of the print image description data between different input and output devices each via the intermediate step of a device-neutral color description, eg. In color values of the normalized XYZ color space. A transformation of the color data from an input device to data of a desired output device takes place here first by transformation of the input device-related data via the input device (or its color space) characterizing profile P _ICCx , z. B. ICC profile P _ICCx , in the device-neutral color space, preferably the XYZ color space or a color space that can be uniquely transformed, z. B. L * a * b. The adaptation of the color data to the output device then takes place by transformation of the device-neutral color data via a color profile P _ICCy characterizing the output device (or its color space), in short profile P _ICCy , z. B. ICC profile P _ICCy , in output device-related color data. The profiles P _ICCx ; P _ICCy then each produce an association between the device-specific color values of the input or output device and the corresponding color values of the device-neutral color space. However, the assignment _{definition of} the color values, which is explicitly determined or also taken from a standard, depends on the circumstances _prevailing during the determination, so that the respective profile P _ICCx ; P _ICCy next to the color mapping through a series of device and / or or process-related features M _{x, i} ; M _{y, k is} characterized, where by characteristics individual parameters and / or dependencies (eg characteristic curves) are to be understood. Conversely, for a transformation related to one and the same device, different color assignments can be used for different features describing the conditions, of which only a few are exemplarily identified below (x, y, i, k ∈ N).

The transformation of the input data into the prepress 13 and / or the RIP process 12 For example, in addition to possibly device-specific and other features M _{x, i} , depending on the type of light underlying the input device, ie the frequency spectrum of an object actually in the input device (eg scanner) and / or virtual (eg image processing - / graphics program) illuminating light source. If a pre-separation has already taken place, then the separation behavior is an important feature or important characteristic. With changing input devices and / or changing conditions, a plurality of color profiles P _ICCx with different features M _{x, i} may be required for the transformation.

During the transformation of the color data from the print original or from the data transformed using color management into the device-neutral color space onto the output device, here the relevant printing press 01 , The color assignments are also dependent on a number of different features M _{y, k} , parameters and / or characteristics. For example, goes to herein as features M _{y, k is} a characteristic curve for the gradation and / or color gamut of the printing colors of the print underlying and / or the substrate to be printed variables characterizing g (BS) (z. B. whiteness and ground color and / or White point and / or gloss) and / or the rendering intent (rendering intent) and / or a characteristic curve k (TWZ) for the dot gain. The latter can be, for example, a standard for the printing process specifiable characteristic curve, such as according to the printing standard ISOnewspaper 26 (the virtual "IFRA printing press"). However, such a standardized characteristic may also be modified by measurements or determined entirely by measurement for the specific output device.

As already noted for the transformation on the input side, you can - even on the same press 01 As an output device - for changing conditions (eg printing inks, printing materials, if necessary reproduction _mode , characteristic) for the transformation thus a plurality of color profiles P _{ICCy be} required. Shall through the pre-press 13 or the RIP process 12 Print templates for different printing presses 01 and / or printing processes are converted into output-specific image data, the number of required profiles P _{ICYy may be multiplied} accordingly.

The for the transformation into the color space of the Duckmaschine 01 Required profiles P _ICCy may preferably be in a memory device of the prepress 13 and / or a product planning system 19 and / or a machine control 15 be deposited. A selection of the profile P _ICCy required for the particular conditions (by way of example eg printing material) of the intended production can, if appropriate, be made manually or preferably by a software _routine , e.g. B. a process module, not shown, selected automatically based on the print job data A and provided for the transformation. This information (data A) can be obtained from the product planning system 19 and / or from the machine control 15 be provided. Whether manual or automated, it is used for the transformation and the RIP process 12 provided the required profile P _{ICCy together} with associated parameters and characteristics.

Through this transformation into the color space of the printing press 01 The color information of the original artwork is now the values of the color space of the press 01 , z. As CMYK values.

In principle, the transformation of the color values of the input color space to the color values of the color space of the printing machine 01 even with the omission of the transformation into the neutral color space. However, if necessary, the number of required profiles P _{ICCy could} increase considerably.

After transformation of the template representing the print image description in the CMYK color space and a separation (in the RIP process 12 or a RIP process 12 upstream process) into the primary colors used in the printing process, the rasterized color separations now lie as data d (F2), for example in a common file d (F2) with the data sets corresponding to the number of printing colors or as a set of individual files d corresponding to the number of printing colors (F2) in z. B. binary data format F2, for example as bitmaps such. In a TIF format. This data d (F2), z. In files d (F2) or in records of a file d (F2), now become a printing plate production 16 , that is supplied to a device for producing the printing form or printing plates. This device 16 can in one embodiment a film exposure 16 for the production of exchangeable printing plates 17 , in another advantageous embodiment, a system for direct imaging 16 of changeable printing forms 17 ("Computer to Plate"), or finally a system for direct imaging 16 the imaging aggregates 18 , z. B. the form cylinder 18 , the printing press 01 ("Computer to Press"). The latter is exemplary in 1 merely hinted at, in the case of "Computer to Press" direct imaging, however, several times in the printing press 01 provided.

The data represented by the data d (F2), z. B. in at least one file d (F2) contained on the respective printing form 17 image information to be transmitted now provide optimum adaptation to the output device by the corresponding features M _{y, k} (parameters and characteristics), ideally one with the relevant printing press 01 Optimum achievable reproduction of the original print template. With optimal machine setting, this result should be reproduced with this - usually a color space that is more limited than the originals - printing press 01 be achievable. As already explained, the machine settings, in particular the ink supply, can be manipulated by the operating personnel, the "bar" not being the print template itself, which may not be achievable, but a result which can ideally be produced by the machine as a print image reference 06 serves.

The display 11 on which the softproof 06 is displayed, represents another, from the printing press 01 different output device. The monitor 11 the color information of an image to be displayed is to be supplied in the form of color values in relation to its color space representation. For example, they are based on the monitor 11 color information to be supplied on RGB values. The ones from the RIP process 12 the pre-press 13 On the one hand, however, the resulting data is based on CMYK values in the CMYK color space of the press 01 and on the other hand are present as separated and screened representations in the basic colors of this color space. For example, in individual files d (F2), in particular individual bitmap files d (F2) or in records of a common bitmap file d (F2) from the RIP process 12 obtained data d (F2) for the separations are prepared for processing in a descreening process 22 (short process 22 ) from the rasterized and separated (bit map) representation back into the multicolor information containing data d (F3), z. B. to a common, the image information preferably in halftones containing file d (F3) returned. This file d (F3), for example, as a so-called composite file now the image information in semitones - z. B. based on CMYK values - included.

Furthermore, in the calculation of the screened separations, for example, corrections have been incorporated which are intended to counteract process-related influences already during the printing form supply. For example, the image information can already take into account the gradation of the printing inks used and thus already be specific to the printing process. On the other hand, z. For example, when screening in the RIP process 12 a non-linear relationship in the form of a characteristic curve k (TWZ) corrected for Tonwertsteigerung. This for printing on the "output device printing press 01 However, "existing process-related influences form an anticipation of errors occurring in the case of screening and printing and are thus output device-specific. As such, these are not simply unseen on the output monitor 11 "Apply. Ideally, at least no significant such press specific pre-corrections should be made to the monitor 11 be included in the image information to be included. Preferably, one or more such corrections should be eliminated before the image information is received by the input of the monitor 11 to be provided. In a preferred embodiment, in a further process 23 , z. B. a Dekalibrierungsstufe 23 at least one decalibration of Tonwertzunahmekorrektur k ^-1 (TWZ) made. This can be directly correlated mathematically with the RIP process 12 applied correction, but also possibly be determined empirically, in which case, for example, at the same time also other effects - for example, with the gradation accompanying effects, can be taken into account. The information required for the decalibration of the dot gain correction k ^-1 (TWZ) (or information about the characteristic curve k (TWZ) of the preceding correction) can be stored in a memory device, by the product planning system 19 or machine control 15 or in the RIP process 12 originating file d (F2) itself. Decalibration can be either as a separate processing step or as a part or process step in the above-mentioned descreening process 22 or in one yourself the descreening process 22 subsequent transformation process 21 (short process 21 ) be provided.

As mentioned above, during the color transformation and / or separation, a base color of the printing substrate which may be present, ie already g characterizing the printing material, may already be taken into account. Should only a small difference in the influence of the printing material characterizing quantities g (BS) on the transformation into the color space of the printing press 01 and the transformation to be expected in the color space of the monitor, it may remain due to possibly similar effect without feedback and possibly reapplying. Are z. However, if, for example, errors in the influence of the printing material can be expected in the transformations, then in a further process stage 24 or a process step 24 (short process 24 ) within the descreening process 22 or a subsequent transformation process 21 a removal of the previously considered, the printing material characterizing size (s) g (BS) are made. One the descreening process 22 if necessary including decalibration and removal of printing material leaving file d (F3), z. B. as a so-called composite file, thus preferably contains press-specific pre-corrections (eg at least tone value correction) cleaned image information of the print original, for example, but in by the printing press 01 to be rendered color space, in particular based on the representation of the color values in the CMYK color space.

In another, in 1 For example, dotted-line execution will not be completely in the RIP process 12 rasterized and with respect to the Tonwertzunahme corrected color separations as data d (F2) for the preparation of the softproof 06 but data d (F2 '), which, for example, were at least not subjected to a correction of dot gain. For example, even data d (F2 ') from a RIP process 12 preliminary pre-separation in CMYK space. These data d (F2 ') can then - without, for example, the requirement of a decalibration and possibly a descreening - the further processing in the soft proofing system are supplied.

The the descreening process 22 or bypassing the decalibration and / or descreening, e.g. B. in the CMYK color space present the color of the print image description relating data d (F3); d (F2); d (F2 ') are now - regardless of whether already processed by one or more of the above corrections - by at least one transformation over at least one transformation process 21 ; 26 ; 27 (short process 21 ; 26 ; 27 ) in the for the monitor 11 as the output device relevant color space, z. B. RGB values of the monitor 11 underlying RGB color space to transform. Also the color data processing of the softproofing system between RIP process 12 and from the monitor 11 The input to be processed is preferably based on the image data processing according to the principle of so-called "color management". The above executed on the principle of color management applies here accordingly, with z. B. as data of the input device here from the RIP process 12 possibly already through one or more of the processes 22 ; 23 ; 24 changed data d (F3); d (F3 ') are to be regarded.

Preferably, a first transformation of the descreening process takes place 22 leaving CMYK data in a device-neutral reference color space, for example, in the device-neutral XYZ color space (especially CIEXYZ) or in the L * a * b color space (especially CIELAB color wheel, which is here also under the term "color space" fall). The following comments on the transformations between the output of the RIP process 12 and the input of the monitor 11 are exemplified using the XYZ color space as a neutral reference color space, but are equally applicable to another neutral color description, e.g. B. L * a * b or other, from the said color spaces derivable or corresponding with corresponding reference drawings apply accordingly. The indication "XYZ" is then to be exchanged accordingly, for example by "Lab". Unless otherwise stated below, for the respective neutral reference color space in the color space representation of a same underlying Normlichtart, z. B. D50, go out.

As a profile of the input device comes here the playback behavior of the printing press 01 Characterizing color profile P _{ICCy *} , in short Profile P _{ICCy *} for use. This profile P _{ICCy *} can be the same or the input device specific counterpart (eg identical, modified or similar) to the above, the printing press 01 as output device specifying profile P _ICCy , be. The profile P _{ICCy *} can differ, for example, from deviating or even "disregarding" certain corrections that are not desired for the proof display. This profile P _{ICCy *} can then z. B. already changed according to features M _{y, k *} such. B. the here to be taken into account or completely eliminated feature of a characteristic curve k '(TWZ) for the gradation and / or the color locations of the underlying printing underlying colors and / or the printing substrate characterizing quantities g (BS) (eg. Whiteness or basic color and / or white point and / or gloss) and / or the rendering intent (rendering intent) and / or the characteristic curve k (TWZ) for the Tonwertzunahme included.

As in the case of the transformation described above in the prepress area, the profile P _{ICCy * can be based on} the description of the virtual "IFRA printing press". The profile P _{ICCy * of} the "input device" (here the virtual printing press 01 based on the parameters from the RIP process 12 ) may possibly already take into account one or more of the above feedbacks of RIP steps or pre-corrections - for example, for descreening and / or decalibration and / or the substrate influence, if necessary - so that a decalibration and / or consideration of the gradation the transformation by means of the (ICC) profile P _{ICCy *} in the device-neutral color space, preferably in the device-neutral XYZ color space or a color space uniquely transformable for this, z. B. L * a * b, can take place.

As for the transformation in the area of prepress 13 and / or the layout process 14 can also - even on the same press 01 for changing conditions (eg printing inks, substrates) and / or changing conditions in the previous RIP process 12 (Rasterung, rendering, display _mode ) for the transformation thus a plurality of color profiles P _{ICCy *} required or be provided. The for the transformation of the respective color space of the Duckmaschine 01 Profiles P _{ICCy *} required in the device-neutral color space (XYZ, L * a * b) may preferably be _stored in a memory device (eg, one with the transformation process 21 related memory or possibly a memory of the product planning system 19 and / or a machine control 15 be deposited and the transformation process 21 be supplied. A selection of the specific conditions (from the intended printing process and / or RIP process processing) 12 ) required profile P _{ICCy *} can be made manually if necessary, or preferably by a software _routine , eg. B. by means of a process module, not shown, on the basis of the print job data A or based on by the image-processed data d (F2) or the file d (F2) entrained relevant data selected and provided for the transformation. Whether manual or automated, it is used for the transformation and possibly the descreening process 22 and / or the decalibration stage 23 provided the required profile P _{ICCy * together} with associated parameters and characteristics. Preferably, the required data with the the RIP process 12 leaving data d (F2), z. B. the file d (F2) or group of files d (F2), carried.

In a transformation process 21 following transformation process 26 , short process 26 , z. B. a transformation of the process 21 data obtained from the data d (F3; F3 ') from the device-neutral XYZ or L * a * b color space either directly into the device-specific color space of the monitor 11 , z. B. in the monitor-specific RGB color space, or in one embodiment, first (device-neutral) transformation T _{n of} the image information from the device-neutral XYZ or L * a * b color space in a neutral RGB color space, and finally of this in another transformation process 27 , short process 27 , by means of one for the monitor 11 (as an output device) device-specific profile P _z , z. B. color profile P _z in particular based on the ICC standard as (ICC) profile P _{ICC, Z} , in the color space of the monitor 11 respectively.

The monitor 11 The image data is then supplied as file d (F5) in a format compatible with the monitor input format F5, wherein the color information in the monitor 11 processable color space, z. B. as RGB values, and are adapted by transformation device and / or user-specific.

The descreening process 22 and the transformation process 21 ; 26 (And possibly also the color data in the monitor-specific color space mapping further transformation process 27 ) can be used as program routines in the same data processing unit 31 , z. B. a so-called. Proofserver 31 , be provided. This can then possibly also means for providing the image data in the respectively required color space for other output devices 32 ; 33 ; 34 as clients, such as one or more hard proofing devices 32 one or more interfaces for providing a proof (eg, soft proof) to other potential or actual users of this print image description, such as a hard proof or soft proof device of a customer and / or a publisher and / or editor 33 , and / or a hardproof or soft proofing device of another location 34 a distributed printing group. In this version as multiple output devices 32 ; 33 ; 34 proofing server with proofs 31 This can be the descreening process 22 and one or preferably several transformation processes 26 (For possibly more required color spaces), wherein the respective output side, output device-specific transformation processes for the clients (here for the monitor 11 the transformation process 27 For example, decentralized, z. B. on-site or output near in corresponding, as the output devices 32 ; 33 ; 34 associated data processing devices (clients) are provided. The transformation process that maps the monitor-specific color space 27 of the output device "Monitor 11 "Can thus - here as well as those of other output devices 32 ; 33 ; 34 Decentralized in a data processing device assigned to the respective output device 29 be provided. The data processing device 29 can then, together with the associated output device, a client to the proofing server 31 form.

The the descreening process 22 thus leaving, for example, a first transformation by means of the profile P _{ICCy *} into the device-neutral XYZ color space and then either directly or via a device-neutral transformation T _n between XYZ and RGB color space using the output device-specific, ie monitor-specific profile P _z in the specifically adapted to the corresponding output device color data transferred. In the first case it contains the process 26 leaving file d (F4) the color information, for example, based on the neutral XYZ color space, in the second case, for example, based on the neutral RGB color space. In a variant, a profile P _{ICCy *} for the transformation of the RIP process 12 provided image information that transforms the color information of the CMYK color space directly into neutral, not yet taking into account the specific monitor properties RGB values. The transformation T _n between neutral XYZ and neutral RGB color space can then be omitted.

The monitor-specific profile P _z represents an association between the device-specific color values of the output device, ie the monitor 11 , and the corresponding color values of the device-neutral color space, z. As the XYZ color space or the neutral RGB color space ago. The profile P _z is preferably characterized in addition to the color assignment by a number of device- and / or process-related features M _{z, m} , where the expression "features" once again to understand individual parameters and / or dependencies (eg characteristics) , For the color correct reproduction of the monitor 11 are as features M _{z, m,} inter alia, the definition of the basic colors and / or the gamma value of the monitor 11 to be considered in the profile P _z . The color assignment between the device-neutral color space (XYZ, L * a * b, possibly neutral RGB) and the monitor reproduction can be achieved, for example, by using a corresponding measuring system ( 61 ), z. B. Color measuring system ( 61 ). The color mapping of the monitor 11 however, it may be dependent on the monitor settings (such as the white point (chromaticity) and / or gamma value). A calibration then takes place - for example, based on the set white point and / or gamma value - by the monitor 11 directly defined RGB values triple or correspondingly defined L * a * b values are given, and for each of these specifications by the monitor 11 produced color by means of a calibrated color measuring system ( 61 ) are measured.

In addition to the color assignment, the position of the white point which is present for the monitor adjustment can be of importance as feature M _{z, m} for a color-fast and defined reproduction. This corresponds to the above-mentioned type of light and provides information about the position of the frequency spectrum, ie whether the setting of the monitor 11 rather reddish, bluish or neutral. This feature M _{z, m} may for example be expressed by the color temperature, and for the daylight range corresponding to the color temperature standard value, for. D50 (color temperature 5,000 K) or D65 (color temperature 6,500 K). In one embodiment, the light D _z thus represents a feature M _{z, m of} the profile P _z . The softproof 06 (Type of light D _z for the monitor display), for example, with a for illuminating the subject original (light type D _a to the filing 03 or at least approximately the radiated light type D _{L of} the lamp 36 ) significantly different color temperature, ie D _z ≠ D _a and D _z ≠ D _L , a comparability of color reproduction is not guaranteed, especially not given. Provided that there is sufficient proximity between the control room 02 or its storage 03 present light D _a and by the light 36 emitted light type D _L can be assumed is - where analogously comparable and unless explicitly distinguished - in the the type of light D _a as input variable or include related to operating modes or functionalities synonymous on the by the light 36 radiated or for the lamp 36 provided light D _{L be} used.

In an advantageous embodiment, for different settings of the white point (types of light D _z ) on the monitor 11 Therefore, different profiles P _z provided and in a -. B. the the monitor 11 associated data processing device 29 or the central computer 05 allocated memory device be kept. Depending on the manual selection or, if necessary, the automatic request of different light types D _z (ie eg setpoint D _{z, soll} ) on the monitor 11 (eg D _z = D50 or D65 or in an advantageous other embodiment of an intermediate type of light eg D _z between D53, ie color temperature 5,300 K, up to D58, ie color temperature 5,800 K) is then z. B. the relevant profile P _z (setpoint D _{z, should} ) corresponding to the desired light D _z (white point) expressing feature M _{z, m used} for the _above transformation (with z, m ∈ N). An output or provision of the required profile P _z for the monitor-appropriate transformation, for example, in one with the transformation process 27 signal-technically linked process module 28 which is also in the monitor 11 associated data processing device 29 can be implemented (eg 2 . 10 ).

In addition to the color mapping and a white point on the monitor 11 Can be used as a soft proof for color-fast and defined playback 06 the underlying printing material influence. For the preparation of the data to be displayed as a soft proof 06 can therefore in an advantageous embodiment of the printing material characterizing quantities g * (BS) such. As whiteness or basic color and / or white point and / or gloss, be considered. In this case, the quantity g * (BS), for example the whiteness or the basic color in the position of the white point, for example as a feature M _{z, m} in the profile P _z , can be taken into account (eg. 10 ).

One or more of the above, the color reproduction of the monitor 11 relevant features M _{z, m} , z. As the white point (or light) and / or the gamma value, for example, as a parameter on the monitor 11 or one of the operation of the monitor 11 controlling monitor control 38 adjustable at least within certain limits. The setting of this for the operation of the monitor 11 relevant parameters can, for example, manually via corresponding, with the monitor control 38 in signal connection standing controls and / or by the monitor control 38 transmitted data containing the relevant information. In the latter case, preferably at least two data sets for the adjustment of the monitor 11 , z. B. at least the position of the white point and / or the brightness, provided, in particular kept in a memory device. Here are at least two defined, the setting of one or more operating parameters of the monitor 11 provided different operating modes.

In an advantageous embodiment with a provided in the system functionality for "choice of lighting" can, for. B. in the control room computer 05 or advantageously in the data processing device 29 , one - z. B. with an input of the monitor control 38 of the monitor 11 and the tax process 39 the light 36 in signal connection - electronic circuit and / or program routine 48 be provided, which z. B. in the choice of a "type of lighting" a conversion of - for example, by a control command S (D) of the operator on a control element ( 77 ) Manually - command to provide or change the by the monitor 11 and through the light 36 type of light to be delivered, setpoint D _{z, should} ; D _{L, should} (or on the shelf 03 to be achieved type of light D _{a, should} ), preferably D _{z, should} = D _{L, should} (or = D _{a, should} ) = D _soll , causes (eg. 11 ). Parallel to this, the on the monitor 11 To be displayed image data are adapted to the present monitor setting. In other words, with the choice of another type of light for the appraisal or for the luminaire 36 a white point shift occurs in the monitor setting. This can be done on the monitor for the transformation 11 to be displayed image data, if necessary, as described, the relevant profile P _z according to the on the monitor 11 required light D _z expressing feature M _{z, m} are used. For this type of monitor to be moved with respect to the white point setting 11 can the light 36 z. B. in a manner described below also be designed changeable in terms of their light D _L.

Another, z. B. in profile P _z to be taken into account feature M _{z, m} refers to a monitor setting underlying luminance L, which serves as a measure of the brightness and is given in cd per m ² . As a result of different perception of color tones and contrasts with differing illuminance levels (illuminated objects) or luminance L (for self-luminous objects) can lead to errors in the assessment if not matched to the illuminance E luminance L. For different luminances L of the monitor 11 Thus, different profiles P _{z can be} provided and in a -. B. the data processing device 29 or a central computer 05 allocated memory device be kept. Depending on the selection or possibly automatic request for different desired values L _, luminance L (for example L1 in a range between 140 and 170 cd / m ² and L2 in a range greater than 170 cd / m ² , advantageously greater than 180 cd / m ² , preferably greater than 200 cd / m ² , for example in a range of 180 to 300 cd / m ² , advantageously 180 to 250 cd / m ² ) is then z. B. the relevant profile P _z for the desired luminance L expressing feature M _{z, m used} for the _above transformation (with z, m ∈ N), wherein the provision of the process module 28 can be done. In a not explicitly shown circuit and / or program routine can according to the type of light in 10 Explained - instead or in addition to consideration of the type of light - procedure.

Of particular importance to the feature M _{z, m} for the luminance L in conjunction with a - possibly adjusted and / or to be measured - in the region of the product to be examined 04 prevailing illuminance E come.

In a particularly advantageous embodiment of the present softproof system, the luminance L of the monitor 11 and in the filing area 03 prevailing illuminance E to each other or is the luminance L of the monitor 11 and / or the light 36 with regard to their light intensity I (over the two Betriebsstati "on" and "out" addition) made changeable. This can be done - possibly in an operating mode - on the one hand by manual intervention of the operating personnel, by basically a light intensity I (or intensity I) of a filing 03 lighting light 36 ("Lighting Control") or the Luminance L of the monitor 11 ("Luminance control"), or advantageously both the light intensity I or intensity I of the lamp 36 as well as the luminance L of the monitor 11 by the operator - at least within certain limits - by operating according to provided means, eg. B. controls, is changeable or adjustable. To change a default for controlling the light 36 in terms of their light intensity I z. B. as setpoint I _should or with respect to one of the tray 03 to be achieved illuminance E z. B. as setpoint E _should , z. B. in the control room computer 05 or in the data processing device 29 or in the tax process 29 , especially in the control unit 39 the light 36 , a one - corresponding, z. B. manually on the control ( 77 ) initiated - setting command S (E / I) implementing electronic circuit and / or program routine 41 be provided or implemented (eg 2 . 12 ). Independent of this or else in addition to this, z. B. in the control room computer 05 or advantageously in the data processing device 29 , one with an input of the monitor control 38 In-line electronic circuit and / or program routine 42 be provided which an implementation of - for example, on a control ( 77 ) by a control command S (L) of the operator manually - command to change the by the monitor 11 to be realized luminance L z. B as L _{shall be} effected (eg 2 . 13 ).

In addition to one or more of the operating modes and / or functionalities mentioned, or instead a regulation ("luminance control") may be provided in an optionally selectable operating mode, by means of which an adjustment of the luminance L of the monitor 11 to a z. B. at the control room 02 especially in the area or near the shelf 03 , z. B. by a sensor 37 determined illuminance E is done. For example, as a result of a command from a controller or manually by the operator, the light intensity I of the lamp 36 changed, and / or changes, for example by a change in the ambient lighting conditions, the actual illuminance E in the filing area 03 , So in at least one operating mode by the control z. B. an automated adjustment of the luminance L of the monitor 11 for example, a new setpoint L _soll . For this purpose, advantageously an assignment (tabular or functional) between luminance L to be set, z. B. as desired value L _soll , and the illuminance E, z. B. as the actual value E _is to be defined and maintained. However, an upper and / or lower limits for luminance L to be maintained and / or illuminance E may be provided, wherein z. B. under- or exceeding a warning signal can be issued. This can, for. B. in the control room computer 05 or advantageously in the data processing device 29 , an electronic circuit and / or program routine 43 be provided, which one caused for example by the regulation with respect to the illuminance E control command to change the by the monitor 11 to be realized luminance L implemented (eg. 2 . 14 ).

In addition to one or more of the said operating modes and / or functionalities, or instead - if necessary in at least one operating mode - a control ("lighting control") may be provided by which a z. B. at the control room 02 especially in the area or near the shelf 03 , z. B. by a sensor 37 z. B. as the actual value E _is determined illuminance E by controlling the light intensity I or intensity I, z. B. as setpoint I _should the lamp 36 to a setpoint for the illuminance E, z. B. setpoint E, _should be regulated. This setpoint E _should be either by the operator by means of setting command S (E), z. B. via a control 77 or be predefined or predefinable by a controller, or else to a monitor 11 predeterminable and / or present luminance L be coupled. Then, for example, as a result of a command from a controller or manually by the operator, the luminous density L on the monitor 11 changed (eg according to 13 ), so for example, in at least one operating mode by the control z. B. an automated adjustment of the illuminance E on the control of the lamp 36 or regulation of the luminaire 36 via a new setpoint E _{is intended} for the on the sensor 37 to be measured illuminance E, whereupon z. B. the light intensity I for the lamp 36 is controlled or regulated accordingly. It can be advantageously defined and maintained an assignment (tabular or functional) between luminance L to be set and illuminance E. However, upper and / or lower limits for illuminance E to be maintained and / or luminance L can also be provided here. This can, for. B. in the control room computer 05 or advantageously in the data processing device 29 , an electronic circuit and / or program routine 44 be provided, which a light intensity I and intensity I of the lamp 36 , z. B. on the power supply and / or a variation of a number of in the lamp 36 operated light sources, with regard to the achievable or to be maintained illuminance E converts (eg. 2 . 15 ).

In addition to one or more of the operating modes and / or functionalities mentioned, or instead a functionality "light type monitoring" and / or control ("light type control") may be provided, in which a z. B. at the control room 02 especially in the area or near the shelf 03 , present light D _{a is} determined. If appropriate, the determination can take place via a sensor mentioned in the above context, but correspondingly also designed to determine the type of light 37 or a specially provided, designed for determining the type of light (spectral evaluation) sensor (in 1 and 16 indicated in parentheses). In one embodiment of "Lichtartüberwachung" example, z. B. in the control room computer 05 or advantageously in the data processing device 29 , an electronic circuit and / or program routine 46 provided by which through the sensor ( 37 ) determined light type D _a with a predetermined and possibly stored target light D _s (eg D50 or D65 or a specific, lying in the range between D53 to D58 color temperature or type of light) and / or on the monitor 11 existing light D _{z is} compared. In case of deviation - possibly taking into account a tolerance - can, for example, a warning, eg. B. optically by a lamp and / or on a monitor ( 09 ; 11 ) and / or by an acoustic signal.

At the same time or instead, a spectral "quality", ie, for example, the proximity to the spectral profile of the ideal radiator of the desired and / or on the monitor 11 present light D _s ; D _z , for example as a so-called "Color Rendering Index". If the quality criteria specified for the quality are not met, a warning can then be issued as above. In addition to or instead of the warning can -. B. in an operating mode "Lichtartregelung" - the program routine 46 be designed to be at a deviation between the z. B. on the shelf 03 measured light D _a and the given light D _s and / or of the light D _{z of} the monitor 11 on the from the light 36 emitted light D _L , z. B. as setpoint D _{L, should} , and / or the monitor 11 underlying light D _z , z. B. as setpoint D _{z, should} , act (eg. 2 . 16 ). When exposed to the light 36 is this z. B. as set out below with respect. Their type of light D _L controlled or regulated formed. A regulation can then with regard to the tray table 03 desired light D _a done. When exposed to the light D _{z of} the monitor 11 Can the above affect the monitor control 38 and / or applied to the transformation by means of a corresponding profile P _z . Preferably, an action in each case finds its limits in, for example, predefinable areas for an allowed light type D _a ; D _z ; D _L. The from the program routine 46 output light D _{z, should} be as in 11 also indicated as a specification in the process 48 be specified.

In the variants mentioned above, the luminance L of the monitor can be changed manually or automatically 11 For example, a profile P _z adapted for a new luminance L (new value for the condition of the feature M _{z, m} ) for the transformation of the image data in the output-side transformation process 27 be applied or be. The provision of the profile P _z can - as above - over the profile P _z managing or providing process module 28 respectively. This ensures that the representation actually remains color-consistent and not falsified due to gradation effects and / or gamma corrections conditionally in the color.

The means, for. B. the corresponding electronic circuit and / or program routine 41 ; 42 ; 43 ; 44 ; 46 , for the implementation of one or more of the above-mentioned manual controls (luminance control and / or lighting control) and / or controls (luminance control and / or lighting control), the data processing device 29 or a central computer 05 be implemented. In this case, for the lighting control or regulation preferably an interface to a the light 36 with respect to their light intensity I driving control unit 39 or tax process 39 intended. In the case of the luminance control is an interface for monitor control 38 and / or the process module managing or providing the (monitor) profiles P _z 28 intended. At one based on the on the monitor 11 automatically adjusted lighting control is an interface for monitor control that transmits the current setting 38 intended. In principle, the corresponding circuit and / or program routine could 41 ; 42 ; 43 ; 44 ; 46 directly to the monitor control 38 or the control unit 39 the light 36 be implemented, with a corresponding signal connection between triggering control (manual) or triggering relevant control process for monitor control 38 or the control unit 39 is to be provided.

Controls for the operator for manual control and / or selection of one of several possibly provided operating modes can be on the control console 02 provided, preferably in one or more of the above interfaces 08 ; 09 - if necessary by specially provided switches on the correspondingly extended control panel 08 and / or correspondingly extended softkeys on the monitor 09 - be integrated. In an alternative embodiment, however, may have its own, provided for softproof functionalities control panel (possibly with a means for pointer control) on the control room 02 and / or on the monitor 11 be provided as a specially imprinted softkeys. These softkeys can be activated as touch-activated fields of a corresponding mask on the touch-sensitive monitor 11 , or as one over at the control room 02 provided control panel (possibly with a means for pointer control) can be formed activatable fields.

Viewed at the process level, the system identifies the product instance 04 using a softproof 06 (short: soft proofing system) thus at least one data processing process 21 . 22 . 23 . 24 . 26 . 27 on, through which the previously in the color space of the printing press 01 transformed image data for the print image description of a print image original in the color space of for the softproof 06 used monitor 11 is transferred. As in the color space of the printing press 01 transformed image data is added to the data processing process ( 21 . 22 . 23 . 24 . 26 . 27 ) preferably those from a RIP process 12 and, for example, result in color values in a color space of the printing press 01 , in particular CMYK color space, related data - z. B. after the color space of the printing press 01 (CMYK) separated records or files d (F2) - supplied. The transfer is preferably carried out taking into account a theoretical color behavior of the printing press 01 , in particular with respect to a device-neutral color space (eg XYZ), descriptive profile P _{ICCy *} and one of the color behavior of the softproof 06 used monitor 11 descriptive profile P _z . The data processing process 21 . 22 . 23 . 24 . 26 . 27 preferably a desreening process 22 (for the return of the RIP and / or layout process 12 ; 14 separated and / or rasterized data in a half-tone representation) and / or a Dekalibrierungsstufe 23 (For at least partial undo, ie a "back-correction" of a possibly in the RIP and / or layout process 12 ; 14 carried out, by the rasters possibly previously required tonal correction) include. The processes 21 . 22 . 23 . 24 . 26 . 27 , preferably at least the transformation processes 21 ; 26 (and possibly 27 ) of the data processing process 21 . 22 . 23 . 24 . 26 . 27 are part of a color management system that provides the necessary transformations from the RIP process 12 originating data in z. B. at least neutral RGB data, if necessary, instead or subsequently converted into monitor-specific RGB data. At least the transformation processes 21 ; 26 (and possibly 27 ) can be summarized in a color management module. At least the RIP decalibration (process 26 ) can already be integrated in the transformation by appropriate consideration in the profiles P _{ICCy *} .

Preferably, several are the color behavior of the printing press 01 descriptive profiles P _{ICCy *} and / or more the color behavior of the monitor 11 descriptive profiles P _z provided. In the case of several the color behavior of the monitor 11 descriptive profiles P _z , these or some of these profiles P _{z may} differ by different underlying luminance L as the profile P _z mitbestimmendes feature M _{z, m} . Instead or in addition to this, in the case of several, the color behavior of the monitor 11 descriptive profiles P _{z distinguish} these or some of these profiles P _z by different types of light D _{z to be used} as a feature M _{z, m} co-determining the profile P _z . Regardless thereof, or in addition to one or more of the aforementioned embodiments, means for controlling and / or regulating the luminance L to be applied to the display and / or means for controlling and / or regulating the type of light D _{z to be used can be} provided. In this case, if necessary, provision of an affected profile P _z z. B. manually and / or automated. Possibly. manually, but preferably automatically, for example, in an operating mode, the regulation or control of the luminance L (and possibly the provision of the respective matching profile P _z ) in conjunction with a respect to a light intensity I and / or light D _L control and / or adjustable light 36 , and / or in the case of an automatic adaptation of the luminance L to changing or fluctuating, for example caused by changing ambient light changes in the area in the storage 03 prevailing lighting conditions. The latter can by the possibly at the control room 02 provided sensor 37 be detected and / or be supplied to the luminance L accordingly adapting control or regulating circuit.

The following are examples of advantageous embodiments for softproof system components and features:

The control room 02 assigned, the filing 03 lighting light 36 is designed to emit a standard light of at least one definable or defined light D _L. It can be based on one or preferably several light sources 51 ; 52 be formed, which z. B. so on the lamp 36 are arranged and / or aligned that they produce at least in the storage area lighting with the most homogeneous illumination E possible. The light sources 51 ; 52 can z. B. as fluorescent tubes 51 ; 52 or as individual LEDs 51 ; 52 be educated. In case of using LEDs 51 ; 52 However, groups of LEDs can also be used 51 ; 52 in each case, for example, as a group to be switched or controlled group, the light sources 51 ; 52 form. In 3a) schematically is an embodiment with a plurality of z. B. as fluorescent tubes 51 ; 52 trained light sources 51 ; 52 , in 4 schematically a light 36 with LEDs 51 ; 52 formed, with the LEDs 51 ; 52 each individual light sources 51 ; 52 represent, for example, as groups corresponding light sources 51 ; 52 can form.

The lamp 36 is in an advantageous embodiment - possibly in conjunction with the associated control unit 39 - In their light intensity I (greater than zero) designed to be changeable overall. The lamp 36 is, for. B. together with an associated controller 39 , designed to be triggered by a manually on a control element and / or by a z. B. above control or output control command optionally light with at least two different, different from zero light intensities I provide. Preferably, at least two different light intensities I (for the same type of light D _L ) are provided which z. B. at least 10% of their intensity I, based on the smaller light intensity I, differ. There may be additional light intensities I via the control unit 39 be adjustable. In absolute terms, the lower light intensity I is dimensioned such that it the storage area of the tray 03 , at least in one area of the format size of the product sample to be inspected 04 , at any point with a illuminance E of z. B. illuminates at least 500 lx. Required radiant power and luminance L arise from the geometric boundary conditions, such. B. Extension of lamp 36 , Distance to the storage table 03 and much more. The at least two different light intensities I can be used as discrete, z. B. predetermined and possibly changeable, light intensity levels are present and can be selected accordingly, or lie in at least one light intensity range and be substantially continuously changeable and selectable. In the latter case, for example, a, in particular electronically controlled, dimmer be provided. In the case of at least two optionally selectable specific light intensity levels, a dimming may possibly also be provided. Advantageously, however, an embodiment of the lamp 36 with a plurality of light sources 51 ; 52 be depending on the selected light intensity I single or groups of light sources 51 ; 52 - For example, by the controller 39 - be switched on or off. The light intensity I is then, for example, on the number of operated light sources 51 ; 52 varies or is thereby variable. Exemplary can in 3 and 4 For example, for a given, below the maximum intensity I levels a group of light sources 51 operated, and the remaining light sources 52 the light 36 z. B. be off.

In the version with - continuously or discreetly - variable light intensity I is thus the illuminance E at the shelf 03 - In particular, in one of the above operating mode for "lighting control" or "lighting control" - changeable and / or - especially in one of the above-mentioned other operating mode of a "lighting control" - an illuminance E at the filing 03 defies possibly fluctuating environmental conditions constant or at least to keep within a tolerance or defined limits.

The lamp 36 and their controller 39 are preferably designed and / or adapted to, in at least one operating mode, an illuminance E in the center of the support area of the tray 03 of at least 600 lx, advantageously at least 650 lx, for example from 650 to 2,000 lx, advantageously from 700 to 1,800 lx. In an advantageous embodiment or mode of operation of the proofing system is the light 36 - z. B. via the control unit 39 - operated in such a way that the illuminance E in the center of the support area of the tray 03 greater than 650 lx, z. B. in a range of 650 lx to 2000 lx, in particular from 700 to 1800 lx.

In addition to or instead of light intensity variability, the light can 36 - If necessary together with an assigned control unit 39 - With respect to their emitted light D _{L be} changeable. For the ideal case of optimal sun protection for the storage area of the shelf 03 they vote on the clipboard 03 prevailing and that by the light 36 total radiated light type D _L match. The lamp 36 is, for. B. together with an associated controller 39 , designed to be triggered by a manually on a control element and / or by a z. B. above control or output control command optionally light with at least two different spectral characteristics, ie optionally light at least two types of light D _L1 ; D _L2 . The at least two different types of light D _L1 ; D _L2 can be configured as spectrally selectable spectral characteristics or possibly as a spectral _{profile which} can be continuously displaced in a certain range with respect to the maximum (of the spectral profile in the visible frequency range). In each of the two cases are preferably light sources 51 ; 52 at least two different types of light D _L (color temperatures) provided. In a first embodiment, one of the number of light types D _{L1 to be} provided or to be provided is; D _L2 corresponding number of light sources 51 ; 52 provided different light D _L (color temperature). Depending on the type of light D _{L1 to be provided} ; D _L2 are only those of this type of light D _L1 ; D _L2 providing light sources 51 ( 52 ) operated. In the schematic representation of 3 and 4 For example, in this embodiment, the light sources could 51 for the operated light sources 51 stand.

In another version to the variability of the light D _{L of} the lamp 36 or of these optionally at least approximately corresponding illuminant D _a to the tray 03 For example, again at least two light sources 51 ; 52 be provided at least two different types of light D _L. However, in contrast to the above-mentioned optional operation, these can be operated jointly in at least one operating situation in order to superimpose the spectral characteristics of the at least two different light sources 51 ; 52 a deviating from the Einzelsprektralläufe spectral course, ie to provide a different light type D _a . In this way, a plurality of types of light D _L (or D _a ) discrete, and possibly continuously provide in a certain frequency range. If necessary, "mixing" can be achieved by dimming the groups of light sources 51 ; 52 different light D _L1 ; D _L2 done.

In the version with a continuously or discretely variable light D _a ; D _L is thus the intended "Illumination" on the filing 03 changeable or selectable. Preferably, as already mentioned above, the presentation of the soft proof is also possible 06 amended or adjusted accordingly.

The lamp 36 and possibly their controller 39 are designed in an advantageous embodiment and / or adapted to emit in at least one operating mode, a light type D _L = D50. Instead or in addition, she can do it be designed to emit in at least one operating mode, a light D _L = D65 and / or in an advantageous development, instead or additionally, a light D _L with a value between D53 to D58. In a preferred embodiment or at least one operating mode, the light is 36 designed or operated with a light type D _L of D50 In another embodiment or at least operating mode is the light 36 formed or operated with a light D _L whose value is between D53 to D58.

The lamp 36 can at least in the area of their downward facing front, ie in the area of the operating side of the control room 02 facing lower edge, one the the level of the light sources 51 ; 52 to the storage table 03 outstanding, possibly adjustable in angle glare protection 53 exhibit. In addition or instead, the light can 36 below the level of light sources 51 ; 52 a latticed or lammellenartige device 54 for limiting the light exit angle and / or one or more focusers, not shown, z. B. one or more lens-like body having. Additionally or alternatively, the light can 36 Total movable, in particular pivotable, on a support carrying this 56 be arranged.

Regardless of the above, but preferably in conjunction with one or more of the lamp 36 and / or their control features mentioned the luminaire 36 in their longitudinal direction, ie in a width of the storage area of the tray 03 extending direction, at least two separately controllable, z. B. spatially spaced light sources 51 ; 52 , For example, fluorescent tubes 51 ; 52 (preferably standard light tubes). This is - realized by the arrangement itself and / or by the controller in this way - an interruption 81 along the light 36 can be produced on the length of the lamp 36 no light towards the storage table 03 is emitted. As a result, the uneven illumination caused by superposition can be significantly reduced in amplitude. In a structurally simple variant, the plurality of light sources arranged in the longitudinal direction 51 ; 52 spaced by a distance a81 in the longitudinal direction. The distance a81 is z. B. at least 0.1 m. It is intended to be larger, the greater the distance of the lamp 36 to the storage table 03 is. In another, z. B. more flexible, execution are in the longitudinal direction of the lamp 36 several, in particular at least three light sources 51 ; 52 arranged side by side. These may be spaced from each other or directly adjoin one another. Here are means, for. B. a manually and / or automatically operable control provided by which individual or groups of in the longitudinal direction of the lamp 36 arranged light sources 51 ; 52 operated while one or more of the longitudinally displaced to the operated light source (s) 51 ; 52 arranged light source (s) 51 ; 52 are inactive.

To the monitor 11 from direct light from the light 36 Protecting it can be at the top of the monitor 11 itself and / or in the area of a rear lower edge of the luminaire 36 an unillustrated - possibly adjustable - glare protection be provided.

To the storage area on the storage table 03 To protect against ambient light, in the rear area and / or one or both sides of the control room 02 and / or the tray table 03 a sunscreen 57 be provided. In addition or instead, it may also be above at least a portion of the tray table 03 - above the lamp 36 or this aussparend - a light protection not shown be provided. The side and / or the rear sunscreen 57 If appropriate, it can also be designed to be movable and / or in the manner of a curtain. In an advantageous embodiment of the sunscreen 57 at least partially formed from a transparent tinted material, such as a tinted glass or plastic. This has the advantage that a Störlichteintrag reduced, but a basic review is guaranteed for the operator.

The softproof 06 displaying monitor 11 can basically be designed as any TFT or LED color monitor or color display or color screen. To meet the requirements for a color-fast representation of the soft proof 06 to be sufficient, its color space must be that through the printing press 01 At least include imagable color space. With regard to the quality of presentation, it preferably satisfies an increased requirement for homogeneity; B. a homogeneity value of at least 90%, preferably at least 95%. That is to say, a deviation of the luminance L in the entire display field from the luminance L in the center of the monitor display deviates by at most 10%, preferably at most by 5%. With regard to the luminance L he is, or the associated monitor control 38 , preferably designed controllable. In an advantageous embodiment, a maximum luminance L of at least 140 cd / m ² , advantageously at least 160 cd / m ² , and in a particularly advantageous embodiment at least 220 cd / m ² , preferably at least 280 cd / m ² achievable. The latter maximum luminance of at least 220 cd / m ² , or at least 280 cd / m ^{2, to be achieved} is preferred in one embodiment of the control station 02 provided on which the the filing 03 lighting light 36 either with one Light intensity I or intensity I is operated or operable such that an illuminance E in the center of the support area of the tray 03 of at least 600 lx, advantageously at least 650 lx, for example from 700 to 1500 lx, is present, and / or the circulation 03 lighting light 36 as a result of a manual selection or an automatic specification optionally with at least two with respect to the light intensity I or intensity I or at the filing 03 resulting illuminance E significantly, z. B. by at least 150 lx, preferably at least from each other different illuminance E optionally operated or operable.

As a "colourfast" display system or "colorfast" monitor 11 is thus z. B. a monitor 11 together with software which, on the basis of at least one monitor-specific profile P _{z, has} a defined association between the color space of the original image data and the color space of the monitor 11 meets.

The display 11 or its monitor control 38 are designed in a first advantageous embodiment and / or adapted to be operated in at least one operating mode with a setting of the light D _z = D50. Instead of or in addition, however, it may be advantageously designed to have a light type D _z = D65 and / or in a particularly advantageous development instead or additionally with a setting for the light type D _z with a value between D53 to D58 and / or in at least one operating mode to be operated instead of or in addition with a setting for the light D _z with a value between D45 to D48. In a preferred embodiment or at least one operating mode, the light is 36 formed or operated with a light type D _L of D50. This applies, for example, especially for the operation of the monitor 11 during operation of the luminaire with D _L = D50 and at most minor interfering light influences. In another embodiment or at least one other advantageous mode of operation is the monitor 11 operated with a setting for the illuminant D _z (the white point) whose value is at D53 to D58. This applies, for example, for operation of the lamp 36 with the light type D _L = D50 and conditions at the control station 02 where z. B. a Störlichteinfluss by entering daylight is not excluded or is negligible.

For example, in the area of the tray 03 passing daylight quasi excluded or negligible, but a Störlichteinfluss by artificial lighting in the form of light from z. B. incandescent or fluorescent lamps can not be excluded or negligible, so in an advantageous mode of operation of the monitor 11 be operated with a setting for the light D _z (or equivalent to the white point), whose value is between D45 and D48 at D48 to D58.

In an advantageous embodiment, the monitor 11 formed in the manner pivotable about 90 °, that the display with its longer side edge either lying (landscape view) or standing (portrait view) runs. The display controlling software and / or monitor control 38 is designed accordingly to image the image according to the orientation of the screen respectively rotated accordingly.

At the control room 02 or in the soft proofing system, for realizing a functionality "monitor check" and / or a "monitor calibration" z. B. in the control room computer 05 or preferably the data processing device 29 implemented process module 49 , z. B. Software program 49 be provided, which is a test procedure or further calibration of the monitor 11 ie the check and, if necessary, a calibration of the monitor 11 in terms of a color-fast color reproduction, supports and preferably leads. This is a permanently connected or mobile meter 58 , z. B. spectrally resolved colorimeter 58 (Especially suitable for color measurement on self-luminous objects), provided for testing and / or calibration with the process module 49 is in signal connection. The process module 49 For its part, for example, stands with the monitor control 38 in signal connection. The measuring device 58 and the process module 49 are part of a measuring system ( 49 . 58 ). If a test and / or calibration is initiated, for example by activating a designated control element, then the monitor 11 for example, by the process module 49 For the output specifically specified RGB signals causes their color reproduction via the meter 58 and compared with the color (coordinates) expected for that RGB signal. Results 66 This comparison give information about the quality of color fastness and can, for example, on a display device, for. B. on a monitor 09 ; 11 , be displayed or be. The display can in this case in a monitor mask and / or - calibration associated program mask 64 respectively. For example, if the results are not within declared tolerances, then - by activating a corresponding, eg. B. one at the control room 02 as hardkey or as softkey in the program mask 64 provided operating element 67 - Initiate a start of a calibration process. In this case, for example, a further, the operating personnel leading mask is called.

Furthermore, at the control desk 02 or in the softproof system for realizing a functionality "color measurement" z. B. in the control room computer 05 or preferably the data processing device 29 implemented process module 47 , z. B. Software program 47 be provided, which is a color measurement on the resting product copy 04 and preferably a comparison with that on the monitor 11 supports reproduced color and preferably leads. This is a permanently connected or mobile meter 63 , z. B. spectrally resolved colorimeter 63 (Especially suitable for color measurement on illuminated objects), provided, which for the color measurement with the process module 47 is in signal connection. The process module 47 receives the information about the color of the softproof 06 , in particular the image area concerned, z. B. from the monitor 11 supplied data d (F5). In the event that both the functionality of the monitor calibration, as well as the functionality for color measurement is provided, may if appropriate education and the same measuring device 58 ; 63 come into use. The measuring device 58 ; 63 However, it must also be suitable for color measurement on illuminated objects. If a color measurement is initiated, for example, by activation of an intended control element or even directly caused by a corresponding signal from the meter 63 , so will about the meter 63 at the place of the product copy in question 04 , z. B. on a particular color field of a printed color pattern scale, the color determined, and this with the corresponding data of the softproof 06 compared. The measurement and / or comparison result can be displayed on a display device, for. B. on a monitor 09 ; 11 , are displayed. The display can in this case in a color measurement associated program mask 68 respectively. The measurement and / or comparison result can also be a conventional error representation, z. B. as an error .DELTA.E for a z. B. either Euclidean or in terms of color perception weighted ("perceived") color difference, identify or be designed as such. As an error ΔE z. B. to be determined by known rule to be determined distance ΔE _from * or ΔE ₀₀ .

Preferably, in the program mask 68 a numerical representation of the coordinates for the two color points as a result 69 in a standard color space, e.g. B. XYZ or L * a * b color space and / or visualization 71 the color comparison by markings of the desired position (eg centric) and the actual position possibly offset therefrom in an ab plane, in particular a section of the ab * plane of the L * a * b color circle which concerns the color. In addition, a rough picture can also be used for orientation 72 of the product to be considered 04 be faded in with an identification of the location of the color field to be considered.

Instead or in addition, at the control room 02 or in the softproof system for realizing a functionality "monitor display" z. B. in the control room computer 05 or preferably the data processing device 29 implemented process module 62 , z. B. Software program 62 be provided by which - for example, by activating a designated operating element - optionally different sections of the soft proof to be displayed 06 and / or optionally a softproof 06 or a representation of the softproof 06 containing printing width (eg., An entire web width) can be displayed. It can also be provided that by the process module 62 a - z. B. enlarged view of a separation, for example of "raw data" from the color separations from the data or the file d (F2) is provided.

In an advantageous embodiment of the control station 02 Softproof system is the soft proof 06 reproducing monitor 11 , short Softproof Monitor 11 , trained in the way or that he on his display - directly or z. In a window 59 , z. B. softprosterster 59 , only the image of the softproof 06 displays. Information about the softproof 06 and / or an operating mode and / or functionality data in this embodiment - for example, when calling a z. B. the mode or functionality program mask - on a control room monitor 09 or advantageously on another monitor 73 , z. B. a softproof system associated with the operating display 73 , be displayed (see eg 5 ). In this version, the softproof 06 - or optionally a correspondingly selected section - on the softproof monitor 11 , and the information required for operation and / or interpretation on the operating display 73 at least one on the operating display 73 displayable screen window 78 ; 79 , short window 78 ; 79 , is provided. Here are, for example, in a window 79 one or more controls 77 for the activation and / or selection and / or operation of one or more of the mentioned operating modes or functionalities can be displayed. In another window 78 then, for example, a, z. B. by the selection by means of appropriate controls ( 08 ) at the control desk 02 or the controls 77 in the window 79 , activated program mask ( 64 ; 68 ) with their associated controls 76 (eg control element 67 ).

The above in connection with an activation and / or selection and / or operation of one or more operating modes or functionalities or specific functions mentioned controls, hereinafter generally individually as a control 77 or in group as controls 77 can in principle all as hardkeys in one or more separately on the control room 02 envisaged control panels provided, or all or part of possibly extended, originally the printing machine control relevant control panel 08 of the control room 02 be integrated. In an advantageous embodiment, however, are the required, the softproof system associated controls 77 ; 76 all or at least partially as softkeys in corresponding program interfaces or masks on the monitor 09 ; 73 intended. These are designed as softkeys controls 77 ; 76 are then in a first embodiment, for example, by means of a pointer control selectable and / or activated, which may optionally be additionally provided a keypad for confirmation and / or value input.

In an advantageous embodiment variant of the windows 78 ; 79 and / or program masks 64 ; 68 with the controls 76 ; 77 displaying monitor 09 ; 73 with a touch-sensitive display area, z. B. in the manner of a touch screen 09 ; 73 , educated. The controls shown as softkeys 76 ; 77 are then by touching the control panel monitor 09 or on z. B. dedicated for the soft proof system control display 73 selectable and / or activatable, possibly at the control room 02 In addition, a keypad may be provided for a value input.

In another, the necessary hardware reducing training is the soft proofing monitor 11 as a monitor 11 with a touch-sensitive display, z. B. in the manner of a touch screen 11 , educated. The softproof 06 For example, in the softprosterster 59 displayed. There is at least one more screen window 78 ; 79 , short window 78 ; 79 , provided, which or which z. B. optionally to the Softprooffenster 59 or at the same time on the screen can be displayed or are. Here are, for example, in a window 79 one or more controls 76 for the activation and / or selection and / or operation of one or more operating modes or functionalities can be displayed. In another window 78 can then, for example, a z. Eg by selecting in the window 79 activated program mask ( 64 ; 68 ) with their associated controls 78 (eg 67 ). In the execution after 8th can have multiple windows 59 ; 78 ; 79 , in particular z. B. the Softprooffenster 59 and a program mask ( 64 ; 68 ) window 78 , be displayed at the same time. In another embodiment ( 9 ) can z. B. alternately the Softprooffenster 58 with the original softproof 06 and the program mask 64 ; 68 having windows 78 be displayed. In addition to this, the z. B. Controls 77 having windows 79 be displayed on which then, for example, the desired functionality or the desired mode of operation on the one hand, and the change back to Softproofanzeige on the other hand is selectable. It may also be only a part of the possibly provided functionalities or operating modes associated controls 77 as softkeys on the softproof monitor 11 be provided. In some cases, they can then be used as hardkeys on the control console and / or as softkeys on another monitor 09 ; 73 be provided.

For all mentioned embodiments of the softproof system, in an advantageous development, a signal connection and means for signal processing are provided, by means of which a correlation between the softproof to be displayed 06 and the moment about the controls, especially the zone keypad 07 , to be manipulated print image is given. For example, via the control panel or another operator interface of the control station 02 a print page to be assessed or a print image to be evaluated is selected, then both the corresponding link to the zone control of the inking unit in question is produced, as well as the soft proof associated with the selected print image or the selected print page 06 on the softproof monitor 11 displayed. For this purpose, for example, from a storage device, the corresponding soft proof 06 selected and on the monitor 11 displayed. In the same sense, the correlated display for the case that takes place via a camera on the tray table 03 overlying, to be assessed printed image or the resting, to be assessed pressure side of the product copy 04 recorded, recognized and assigned.

LIST OF REFERENCE NUMBERS

01

 Printing machine, sheet-fed printing machine, web-fed rotary printing machine

02

 control station

03

 Tray, storage table

04

 product instance

05

 control center computer

06

 Printed image reference, proof, soft proof

07

 Interface, zone keyboard

08

 Interface, control panel

09

 Interface, Display, Monitor, Control Station Monitor, Touchscreen

10

11

 Display device, monitor, softproof monitor

12

 RIP process

13

 prepress

14

 layout process

15

 machine control

16

 Printing plate production, film exposure, direct imaging

17

 printing form

18

 Imaging aggregate, forme cylinder

19

 Product planning system

20

21

 Transformation process, process

22

 Descreening process, process

23

 Decalibration stage, process

24

 Process step, process step, process

25

26

 Transformation process, process

27

 Transformation process, process

28

 process module

29

 Data processing device

30

31

 Data processing unit, proofing server

32

 Output device (hard proof device)

33

 Output device (editor)

34

 Output device (location)

35

36

 lamp

37

 sensor

38

 monitor control

39

 Control process, control unit

40

41

 Circuit and / or program routine

42

 Circuit and / or program routine

43

 Circuit and / or program routine

44

 Circuit and / or program routine

45

46

 Circuit and / or program routine

47

 Process module, software program

48

 Circuit and / or program routine

49

 Process module, software program

50

51

 Light source, fluorescent tube, LED, group

52

 Light source, fluorescent tube, LED, group

53

 antiglare

54

 Facility

55

56

 bracket

57

 sunscreen

58

 Measuring device, colorimeter

59

 Window, soft-window

60

61

 Measuring system, color measuring system

62

 Process module, software program

63

 Measuring device, colorimeter

64

 program mask

65

66

 Result

67

 operating element

68

 program mask

69

 Result

70

71

 visualization

72

 Illustration

73

 Monitor, operating display, touch screen

74

75

76

 operating element

77

 operating element

78

 Screen window, window

79

 Screen window, window

80

81

 Unterberechung

A

 dates

e

 illuminance

I

 Light intensity, intensity

L

 luminance

AE

 error

d (F1)

 File, data

d (F2)

 File, bitmap file, data

d (F3)

 File, data

d (F4)

 File, data

d (F5)

 File, data

d (F2 ')

 File, bitmap file, data

d (F3 ')

 File, data

k ^-1 (TWZ)

 Tonwertzunahmekorrektur

P _ICCx

 Profile, ICC profile, color profile

P _ICCy

 Profile, ICC profile, color profile

P _{ICCy *}

 Profile, color profile

D _a

Light type ( 03 )

D _z

Light type ( 11 )

D _s

 Target illuminant

D _{z, shall}

Setpoint (D _z )

D _{L, shall}

Setpoint (D _L )

E _shall

 Setpoint (E)

I _should

 Setpoint (I)

L _should

 Setpoint (L)

E _is

 Actual value (E)

M _{z, m}

 feature

P _z

 Profile, color profile

T _n

 transformation

S (D)

 Position command (light type)

BE)

 Position command (illuminance or intensity)

S (L)

 Positioning command (luminance)

g * (BS)

 Size (substrate)

a81

 distance

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 2045711 A2 [0002]
• WO 02/100644 A1 [0003]
• EP 1880850 A2 [0004]
• EP 1889721 A2 [0005]
• EP 2113389 A2 [0006]
• DE 102004049604 A1 [0007]
• DE 102008025874 A1 [0008]
• EP 1970198 A2 [0009]

Claims (13)

System for the evaluation of a product copy ( 04 ) at the control desk ( 02 ) of a printing machine ( 01 ) with a tray ( 03 ) for the product copy to be assessed ( 04 ), with a monitor ( 11 ) for displaying a printed image of the product copy ( 04 ) simulated print image reference ( 06 ), and with one the filing ( 03 ) lighting luminaire ( 36 ), which is designed to emit light of a variable light intensity (I), characterized in that in the storage area ( 03 ) a sensor ( 37 ) for determining an actual value of a illuminance (E _ist ) and / or a light type (D _L ) of the light at the filing ( 03 ) in the area of the sensor ( 37 ) incident light is provided. System according to claim 1, characterized in that an electronic circuit and / or program routine ( 46 ) is provided, through which in at least one operating mode of the system, an adaptation of a through the lamp ( 36 ) to be emitted intensity (I) with respect to a predetermined illuminance (E). System for the evaluation of a product copy ( 04 ) at the control desk ( 02 ) of a printing machine ( 01 ) with a tray ( 03 ) for the product copy to be assessed ( 04 ), with a monitor ( 11 ) for displaying a printed image of the product copy ( 04 ) simulated print image reference ( 06 ), and with one the filing ( 03 ) lighting luminaire ( 36 ), which is designed to emit light of a plurality of different types of light (D _L ), characterized in that in the storage area ( 03 ) a sensor ( 37 ) for determining a type of light (D _L ) of the filing ( 03 ) in the area of the sensor ( 37 ) incident light is provided. System according to claim 1, 2 or 3, characterized in that an electronic circuit and / or program routine ( 46 ) is provided, through which in at least one operating mode, a change of a by the lamp ( 36 ) emitted light (D _L ) with respect to a predetermined desired value (D _{L, soll} ) out. System according to one or more of claims 1 to 4, characterized in that a through the lamp ( 36 ) radiated total light (D _L ) and / or intensity (I) as a result of a control command (S (D)) by operating personnel and / or by a controller is changeable. System according to one or more of claims 1 to 5, characterized in that at least two differing profiles (P _z ) for the monitor-specific transformation of the monitor ( 11 ) and / or at least two defined, the setting of one or more operating parameters of the monitor ( 11 ) are provided different operating modes. System according to claim 6, characterized in that an electronic circuit and / or program routine ( 41 ; 48 ) is provided, by means of which, depending on the set or measured light type (D _L ) and / or the set intensity (I) and / or measured actual value of the illuminance (E _is ) a monitor setting is variable. System according to claim 6 or 7, characterized in that an electronic circuit and / or program routine ( 41 ; 48 ) is provided, by which, depending on the set or measured light (D _L ) and / or the set intensity (I) and / or measured actual value of the illuminance (E _is ) a change of a profile to be applied during the transformation (P _z ) to customize the monitor ( 11 ), the print image reference ( 06 ) representing image data can be brought. System according to one or more of claims 1 to 8, characterized in that the image data for displaying the printed image reference ( 06 ) from a RIP process ( 12 ) are obtained by a one- or multi-level transformation of the image data taking into account the color reproduction of the printing press ( 01 ) descriptive and / or the color rendering of the monitor ( 11 ) descriptive profile (P _{ICCy *} ; P _z ). System according to claim 9, characterized in that in the transformation a decalibration of a in the RIP process ( 12 ) Tonwertzunahmekorrektur takes place. System for the evaluation of a product copy ( 04 ), in particular according to one or more of claims 1 to 10, with a tray ( 03 ) for the product copy to be assessed ( 04 ), with a monitor ( 11 ) for displaying a printed image of the product copy ( 04 ) simulated print image reference ( 06 ), and with one the filing ( 03 ) lighting luminaire ( 36 ), which is designed to emit light of at least one defined intensity (I) and a defined type of light (D _L ), characterized in that the luminaire ( 36 ) is operated in at least one operating mode with an intensity (I), so that at least in the center of the tray ( 03 ) an illuminance (E) of at least 650 lx, preferably from 700 to 1,800 lx operated. System according to claim 11, characterized in that the luminaire ( 36 ) is operated with a light type (D _L ), which corresponds to a color temperature of 5,300 K to 5,800 K. System for the evaluation of a product copy ( 04 ), in particular according to one or more of claims 1 to 10, with a tray ( 03 ) for the product copy to be assessed ( 04 ), with a monitor ( 11 ) for displaying a printed image of the product copy ( 04 ) simulated print image reference ( 06 ), and with one the filing ( 03 ) lighting luminaire ( 36 ), which is designed to emit light of at least one defined intensity (I) and a defined type of light (D _L ), wherein the luminaire ( 36 ) is operated in at least one operating mode with an intensity (I), so that at least in the center of the tray ( 03 ) an illuminance (E) of at least 650 lx, preferably from 700 to 1,800 lx, and / or the luminaire ( 36 ) is operated with a type of light (D _L ), which is operated at a color temperature of 5,300 K to 5,800 K.

Images