WO2005093395A1 - Optische systeme zur erzeugung eines beleuchtungsstreifens - Google Patents
Optische systeme zur erzeugung eines beleuchtungsstreifens Download PDFInfo
- Publication number
- WO2005093395A1 WO2005093395A1 PCT/EP2005/051155 EP2005051155W WO2005093395A1 WO 2005093395 A1 WO2005093395 A1 WO 2005093395A1 EP 2005051155 W EP2005051155 W EP 2005051155W WO 2005093395 A1 WO2005093395 A1 WO 2005093395A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical system
- light
- light sources
- lighting device
- lighting
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 139
- 239000000463 material Substances 0.000 claims abstract description 149
- 238000001514 detection method Methods 0.000 claims description 44
- 238000005286 illumination Methods 0.000 claims description 34
- 238000007639 printing Methods 0.000 claims description 33
- 239000007787 solid Substances 0.000 claims description 21
- 230000005855 radiation Effects 0.000 claims description 16
- 239000002826 coolant Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 11
- 238000007689 inspection Methods 0.000 claims description 9
- 238000007645 offset printing Methods 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 230000004907 flux Effects 0.000 claims description 2
- 238000007650 screen-printing Methods 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000001746 injection moulding Methods 0.000 claims 1
- 238000009792 diffusion process Methods 0.000 abstract 2
- 230000008901 benefit Effects 0.000 description 9
- 238000001816 cooling Methods 0.000 description 5
- 230000001419 dependent effect Effects 0.000 description 4
- 230000004913 activation Effects 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000005338 frosted glass Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- -1 sheet Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/024—Details of scanning heads ; Means for illuminating the original
- H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
- H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
- G07D7/12—Visible light, infrared or ultraviolet radiation
- G07D7/121—Apparatus characterised by sensor details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/00976—Arrangements for regulating environment, e.g. removing static electricity
- H04N1/00978—Temperature control
- H04N1/00981—Temperature control by forced convection, e.g. using fans
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/024—Details of scanning heads ; Means for illuminating the original
- H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
- H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
- H04N1/02845—Means for illuminating the original, not specific to a particular type of pick-up head using an elongated light source, e.g. tubular lamp, LED array
- H04N1/02865—Means for illuminating the original, not specific to a particular type of pick-up head using an elongated light source, e.g. tubular lamp, LED array using an array of light sources or a combination of such arrays, e.g. an LED bar
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/024—Details of scanning heads ; Means for illuminating the original
- H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
- H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
- H04N1/02885—Means for compensating spatially uneven illumination, e.g. an aperture arrangement
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/024—Details of scanning heads ; Means for illuminating the original
- H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
- H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
- H04N1/02895—Additional elements in the illumination means or cooperating with the illumination means, e.g. filters
Definitions
- the invention relates to optical systems for producing a lighting strip according to the preamble of claim 1, 8 or 98.
- the application consists primarily in the image acquisition of machine-processed material for industrial image processing, e.g. B. of printing material processed in security printing, the optical system being used in or on a printing press, preferably in or on a rotary printing press, in particular in or on an offset printing process, in a steel engraving process, in a screen printing process or in a hot stamping printing press ,
- the optical system can also be arranged in or on a machine which further processes a printed product.
- the image is recorded for the purpose of an at least partial, preferably complete image representation of the moving material with or without a measurement of previously defined features of this material in order to assess this material with regard to the quality of a processing step previously carried out in the machine.
- Generic optical systems are e.g. B. used in an inline inspection system and thus form part of an inline inspection system.
- An image reading device is known from DE 35 27 300 C2, an illumination device having a plurality of groups of light sources being provided, the groups of light sources emitting light for producing an illumination strip, a control device operating the groups of light sources in a pulsed manner, with photosensors arranged in a row from Detect remitted light from the surface of the material, the photo sensors forming a line scan camera, the groups a light source controlled by the control device is associated with light sources, a duty cycle of the light sources being synchronized with an exposure time of the line scan camera.
- DE 41 02 122 A1 discloses a method for examining web-like, translucent material, in particular a paper web, which is suitable for use in the printing industry.
- DE 43 21 177 A1 discloses a printing press with an inline image inspection device for inspecting a print product created in the printing press, image data from the printed product being provided to a computing device, the image recording device consisting of one measuring module or several each having a defined image area measuring modules scanning the printed product and consisting of at least one associated receiving device which provides the image data in electrical form and preferably spatially separated from the measuring modules, the measuring modules and the at least one receiving device being connected to one another by means of at least one image conductor, the imaging device being a lighting device consisting of precision halogen lamps is assigned, a blown air tube with openings in the direction of the printed product when it is blown with air, the printed product in a defini holds the first distance to the lighting device and at the same time cools the lighting device with the blowing air.
- a device for quality control of printed matter which likewise forms an inline image inspection system arranged in a printing press, an illumination device designed as a fluorescent tube and an image recording device designed as a line camera being used.
- an inline image inspection system for a printing press in particular a sheetfed offset printing press, is known, in which a lighting device designed as a fluorescent lamp is located below a footstep close to a counterpressure cylinder carrying a printing material and an image recording device designed as a line camera in comparison a further distance from the impression cylinder to the lighting device is arranged in an assignment to the last printing unit of the printing press.
- EP 0 762 174 A2 describes a device for linear illumination of sheet material, such as. B. banknotes or securities, known, wherein a cylindrical mirror is provided with two mirror segments, the mirror segments forming an elliptical, two focal lines base, the width of the mirror segments is chosen to be greater than or equal to the width of the sheet material, with the first focus line the sheet material transported by a transport device perpendicular to this focus line and in the second focus line a cold light source, e.g. B. a number of light emitting diodes (LEDs), is arranged, a detector, e.g. B. a CCD array or individually or in groups arranged photodiodes, the light reflected from the sheet material and converted into signals for processing in a processing system.
- a cold light source e.g. B. a number of light emitting diodes (LEDs)
- a detector e.g. B. a CCD array or individually or in groups arranged photodiodes, the light
- An inspection system is known from US Pat. No. 4,972,093, in which a moving test object is acted upon by a pulse-controlled light-emitting diode arrangement with a flash of light lasting between 20 ms and 200 ms, and a surface camera records an image of the entire test object.
- an optical system for generating an illuminated structure on a surface of a material moved relative to the structure is known, an illumination device with a plurality of electrically connected light sources emitting light for generating the structure, a detection device with at least one detector from the Surface of the material remitted light detected, wherein the light sources are arranged on a circuit board, the circuit board is arranged on a carrier, the carrier having at least one channel in its interior, wherein a liquid or gaseous cooling medium for cooling the light sources flows through the channel.
- a device for controlling light-emitting diodes forming a line-shaped lighting device with a constant current source is known, a driver circuit of the light-emitting diodes being connected to a line camera via a scanning control circuit and a multiplexer, so that light-emitting diodes of the lighting device and Photo sensors of the line scan camera are each synchronized.
- the invention has for its object to provide optical systems for producing a lighting strip, the lighting strips having a homogeneous, large illuminance in an arrangement which is independent of the focal point can be acted upon, the length of the lighting device being easily adaptable to needs.
- the reflector module with the functions integrated therein, makes the lighting device extremely compact and therefore it can be easily integrated into a printing press or a machine that further processes a printed product.
- the lighting strip is illuminated brightly and shadow-free, because the reflector module forms the beam path of the light emitted by the light sources, homogenizes the emitted light beams and bundles them specifically to form a narrow light band.
- the use of a reflector module also permits the formation of a lighting device that is easy to scale in the longitudinal direction, so that the lighting device can be adapted to any required format width of the material.
- the material on the surface of which the lighting strip is to be produced does not have to be arranged in a focal point of the light emitted by the light sources in the direct or in the deflected beam path in order to make the lighting strip appear with a sufficient illuminance.
- An arrangement of the lighting strip relative to the optical system that is independent of the focal point is advantageous because it is then possible to dispense with exact dimensional accuracy with regard to the distance between the lighting strip and the lighting device.
- the proposed optical system is therefore tolerant of the distance from the illuminated material.
- the material in particular also to a sufficient distance from a transport device moving the material, which leaves the optical system and the material under the given operating conditions in a printing press permanently and reliably outside of contact and preferably arranges the optical system outside the range of the dirt particles whirled up by the moving material ,
- a lighting strip illuminated by the lighting device with a width extending orthogonally to its length on the surface of the material, i. H. a two-dimensional, two-dimensional structure, has a line-shaped, i.e. H. only one-dimensional, illuminated structure has the advantage that the illuminated structure is reliable as a virtual one for a detection device arranged at a reflection angle to the surface of the at least partially reflective material for detecting the light reflected from the surface of the material, even with a relief-like configuration of the surface of the material Cellular lighting device appears because the width of the lighting strip ensures that a cross-sectional area of a detection angle of the detection device, at which the detection device is able to detect remitted light, is present on the surface of the material, at least part of a cross-sectional area of the lighting device that extends across the width of the lighting strip light beam emitted by the lighting device is detected.
- the proposed optical system is also well suited for image recording of material with a diffusely reflecting surface. Even with a material with a relief-like surface, there is hardly any shadow effect.
- the proposed optical system is its lighting device preferably in modules, i.e. in independent functional units, which has the advantage that a line length of the line-shaped lighting device without expensive custom-made by simply stringing together prefabricated, preferably functionally identical modules in the required number to the width of the material to be illuminated or at least to the length of the lighting strip is adaptable.
- the light sources can also be selectively activated only in those modules which are required to illuminate the width of the material to be illuminated or at least the length of the lighting strip, which is advantageous for the economy in the construction and operation of the optical system.
- the use of several light sources per module has the advantage that there are inevitable differences in the light emitted by the light sources, e.g. B. in its wavelength, homogenize by mixing the beams of neighboring light sources and homogenize the overall light emitted by the lighting device in its optical properties.
- the light sources assigned to the groups differing in their optical properties, e.g. B. in the color of the light emitted by the light sources of each group, the individual groups of light sources can be application-dependent, for. B. can be selected and controlled according to the color of the light.
- the proposed optical system has the advantage that it may have a long length of e.g. B. applied over a meter lighting strip by a uniform, needs-based light distribution with a homogeneous, sufficiently large illuminance and is easily adaptable to the respective requirements in a printing press due to its modular, less prone to failure. Since the material to be illuminated cannot be arranged in a focal point of the lighting device, there is also no need for an exact alignment of the vertical distance of the light sources from the surface of the material and a monitoring of this distance during the ongoing use of the optical system, which considerably simplifies the handling of the optical system on site in an industrial company.
- a digital line scan camera has i. d. R. on an electronic shutter, which at the end of the exposure time of the line camera emits a readout pulse for reading out the electrical charge accumulated by detectors of the line camera due to the light remitted by the surface of the moving material.
- the correlation according to the invention between the on-time of the light source and the exposure time of the line camera prevents a so-called overflow of the line camera detectors sensitive to electrical charges. Rather, at least over a wide range of the speed of the moving material, there is advantageously a barrier and thus a clear separation between detectors of the line camera arranged one behind the other in the direction of movement of the material.
- Fig. 1 shows a surface of a moving material with a lighting strip in a top view
- 11 shows an at least partial superimposition of the radiation from two adjacent light sources with an upstream scattering body; 12 is a side view of the optical system;
- FIG. 13 shows a circuit board equipped with light sources on a carrier through which a cooling medium flows
- FIG. 17 shows a perspective view of a reflector module.
- a material 03 shown in FIG. 1 with a surface 02 is moved in a direction of movement 04 indicated by an arrow.
- the movement is carried out by a z. B. arranged in or on the printing press, not shown here, the movement of the material 03 during operation of the optical system described below preferably takes place in only a single direction of movement 04, preferably linear.
- the speed of the moving material 03 can be uniform or variable.
- the material 03 is preferably flat and flat, e.g. B. as a sheet 03 or as a material web 03, formed.
- the material 03 is in particular as a z. B. forms existing paper 03, z. B. as a security 03 or as a banknote 03.
- the surface 02 of the material 03 can be a relief or other have the structure 02 protruding or embossed into the surface 02 as a recess, the height or depth of the relief or the structure being very small compared to a width B03 of the material 03.
- At least part of the surface 02 of the material 03 is e.g. B. by applying a reflective material, e.g. B. a lacquer, or a film, by introducing a window thread or other preferably metallic application in the material 03, reflective.
- a lighting device 06 shown only symbolically in FIG. 2 produces an illuminated structure 01 on the surface 02 of the material 03, preferably in the form of an illumination strip 01 with a length L01 and a width B01 (FIG. 1), the width B01 being on the Surface 02 of material 03 extends orthogonally to length L01.
- the width B01 of the lighting strip 01 is preferably directed in the direction of movement 04 of the material 03, whereas the length L01 of the lighting strip 01 is preferably parallel to the width B03 of the material 03 and extends over parts of the width B03 of the material 03 or over its entire width B03 can extend.
- the width B01 of the lighting strip 01 is z. B. at least 3 mm, preferably at least 8 mm.
- the direction of movement 04 of the material 03 is thus preferably directed at least substantially parallel to the width B01 of the lighting strip 01, the direction of movement 04 of the material 03 lying within the plane spanned by the length L01 and the width B01 of the lighting strip 01.
- the material 03 is preferably not curved at least in the area of the lighting strip 01.
- the lighting device 06 has a plurality of light sources 07 arranged next to one another in the form of cells, so that the entire lighting device 06 is formed in a row.
- the light sources 07 of the lighting device 06 arranged in a row are preferably arranged parallel to the length L01 of the lighting strip 01.
- the light sources 07 are each at a distance A07 from the surface 02 of the material 03, the distance A07 preferably between 30 mm and 200 mm, in particular between 70 mm and 140 mm.
- the distance A07 of the light sources 07 is preferably perpendicular to the surface 02 of the material 03.
- All light sources 07 of the lighting device 06 are preferably of the same design, e.g. B. as bright, bright light-emitting diodes 07 or as laser diodes 07.
- groups of several light sources 07 arranged next to one another in a row can also be provided, the individual groups of light sources 07 differing in their optical properties, eg. B. in the wavelength of the light emitted by them. So z. B. a group of light sources 07 emit white light, whereas another group of light sources 07 emits monochrome light. It can be provided that a control device 23 connected to the lighting device 06 individual light sources 07 or groups of light sources 07 depending on the application, for. B. depending on the nature of the surface 02 of the material 03 selected according to the color of the light and controlled individually and preferably independently of one another, ie optionally activated.
- control device 23 can also control a group of light sources 07 independently of at least one other group of light sources 07. B. in their brightness and / or lighting duration. It is also possible with the optional activation of individual light sources 07 or the optional activation of groups of light sources 07 to make the length L01 of the lighting strip 01 generated by the light sources 07 variable, so that the length L01 of the lighting strip 01 is simple, for. B. can be adapted to the width B03 of the material 03 to be illuminated. It can also be provided that only selected areas are illuminated in the longitudinal direction of the illuminating device 06 on the surface 02 of the material 03, with illuminated areas in the longitudinal direction of the illuminating device 06 being illuminated by unilluminated or, for. B. areas with different colors can be interrupted.
- the lighting strip 01 is generally preferably arranged outside a focal point of the light emitted by the light sources 07, which is located in the direct or deflected beam path.
- the lighting device 06 consists, for. B. from several rows of modules M61 to M65 (Fig. 12) each with several rows of light sources 07 arranged in a row, with a parting line 26 between two adjacent modules M61 to M65 is preferably arranged obliquely to the length L01 of the lighting strip 01.
- the individual modules M61 to M65 of the lighting device 06 can, for. B. be functionally identical. So z. B.
- the light sources 07 of individually selected modules M61 to M65 can also be activated independently of the light sources 07 of other M61 to M65.
- the 3 shows a single light source 07 of the lighting device 06 in a only two-dimensional representation.
- the light source 07 emits its light into a solid angle ⁇ , the solid angle ⁇ being a surface AK cut out of a sphere, that is to say a spherical surface AK, up to the size of a hemisphere spans.
- Fig. 4 shows several, e.g. B. four of the light sources 07 shown in FIG. 3 arranged side by side on a common circuit board 21.
- the current source 22 belonging to the respective light sources 07 is preferably arranged on the same circuit board 21.
- the current source 22 is preferably designed as a constant current source 22, in particular as a controllable constant current source 22.
- An optical system which is preferably a component of an inspection system arranged in or on a printing press or a machine which further processes a printed product and which is used to assess the quality of a printed product produced by the printing press, includes, in addition to the lighting device 06 - as shown in FIG.
- the detection device 08 can be seen - at least one detection device 08 with at least one detector 09 arranged at a distance A09 from the surface 02 of the material 03, the detector 09 detecting light reflected from the surface 02 of the material 03.
- the detection device 08 is e.g. B. as a camera 08, preferably a line camera 08, in particular a color line camera 08, formed.
- the detection device 08 also preferably has a plurality of detectors 09 arranged in a row next to one another, the detectors 09 arranged in a row preferably being arranged parallel to the length L01 of the illumination strip 01 and / or parallel to the width B03 of the material 03.
- a distance between rows of detectors 09 arranged in rows is preferably rectified to the direction of movement 04 of the material 03, ie rows of detectors 09 arranged one behind the other in the direction of movement 04 of the material 03 are preferably arranged orthogonally to the direction of movement 04 of the material 03.
- the detector 09 of the detection device 08 can, for. B. can be designed as a CCD array 09 or as a group of photodiodes 09.
- the detector 09 of the detection device 08 converts the detected remitted light into an electrical signal and feeds the electrical signal to an image processing device 24 connected to the detection device 08 for its evaluation.
- FIG. 5 shows that in the optical system the light sources 07 of the lighting device 06 are assigned at least one first mirror 11 with at least one active surface 12 which is oriented longitudinally to the length L01 and / or the width B01 of the lighting strip 01, the active surface 12 of the first mirror 11 the light emitted into the solid angle ⁇ from at least one of the light sources 07 Limits lighting device 06 to a smaller first envelope surface AH1 than the spherical surface AK belonging to the solid angle ⁇ .
- the active surface 12 of the first mirror 11 can be flat or concave.
- the at least one active surface 12 of the first mirror 11 which is directed along the length L01 of the illumination strip 01, can restrict the light emitted in the solid angle ⁇ by at least one of the light sources 07 of the illumination device 06 to a smaller second envelope surface AH2 than the at least one along the width B01 of the illumination strip 01 directed effective surface 12 of this first mirror 11, as shown in FIG. 6 in comparison to the beam bundling according to FIG. 5.
- At least one light source 07 of the illumination device 06 preferably has a first mirror 11 with at least two active surfaces 12 which are symmetrical with respect to a central beam 13 emitted by the light source 07.
- a second mirror 16 may be provided, its at least one active surface 17 being arranged in the central region 14 surrounding the beam path of the central beam 13 within the solid angle ⁇ of the light emitted by the light source 07, the active surface 17 of the second mirror 16 being the one of At least one of the light sources 07 of the illumination device 06 deflects light against at least one active surface 12 of the first mirror 11 which is oriented longitudinally to the length L01 and / or the width B01 of the illumination strip 01.
- the radiation emitted by the light source 07 can preferably be bundled to a greater extent along the length L01 of the illumination strip 01 than the radiation along its width B01.
- the active surface 17 of the second mirror 16 can also be flat or concave.
- the radiation to be assigned to the central region 14 and emitted by the respective light sources 07 is indicated in FIGS. 7 to 10 with continuous arrow lines, whereas radiation emitted peripherally by the light sources 07 in their respective solid angle ⁇ with dashed arrow lines is indicated.
- the lens 18 cannot be rotationally symmetrical in order to bundle the radiation emitted by the light source 07 more preferably along the length L01 of the lighting strip 01 than along its width B01.
- FIG. 11 shows that the light sources 07 of the illumination device 06 are preferably arranged in such a way that the respective solid angles ⁇ or at least the envelope surfaces AH1; Overlay AH2 of the light emitted by at least two adjacent light sources 07 of the lighting device 06 at least in a partial area 19 illuminating the lighting strip 01. This superposition is also provided in particular when the neighboring light sources 07 involved are arranged in two adjacent modules M61 to M65. It can also be seen from FIG. 11 that a first mirror 11 with at least one active surface 12, preferably with two mutually symmetrical active surfaces 12, can be provided on each individual light source 07 of the lighting device 06, at least along the width B01 of the lighting strip 01.
- the lighting device 06 can on a side facing the surface 02 of the material 03, ie on a light exit side of the Lighting device 06, a diffuser 38, ie a light scattering body, z. B. a lenticular or a prismatic film, the diffuser 38 preferably only or at least predominantly distributes the light emitted by the light sources 07 onto the surface 02 of the material 03 along the length L01 of the illumination strip 01.
- the reflector module 39 is a z. B. from a preferably transparent plastic injection molded component.
- the reflector module 39 is therefore preferably designed as a particularly solid molded part in which the diffuser 38 and at least one of the mirrors 11; 16 are formed jointly, in such a way that in the molded part no optically relevant interface separates the diffuser 38 from the at least one mirror 11; 16 separates.
- FIG. 17 shows, in a perspective view, an example of a reflector module 39 with a scattering body 38 which is preferably designed to be integrated on the light exit surface, with the scattering body 38 on the light exit surface of the reflector module 39 e.g. B. is formed as a groove structure, ie on the molded part z. B. are integrally formed, the reflector module 39 being arranged in the lighting device 06 such that the parallel grooves are preferably aligned with the direction of movement 04 of the material 03.
- the arrangement of the mirrors 11; 16 and / or the lens 18 can be integrally formed in the reflector module 39.
- the reflector module 39 is preferably formed with a depression extending in the longitudinal direction of the lighting device 06, the depression dividing the light exit surface of the reflector module 39 into two preferably equally wide partial areas, at least one, preferably each of these partial areas the light exit surface of the reflector module 39 is in turn designed as a lens, in particular as a convex lens. At least one, preferably each, of these partial areas of the light exit surface of the reflector module 39 bundles the light flux emerging at the light exit surface of the reflector module 39 in the direction of the illumination strip 01 to be formed on the surface 02 of the material 03.
- the reflector module 39 is preferably constructed from a plurality of segments lined up, each segment forms the light beam path fed into the reflector module 39 by one of the light sources 07.
- the reflector module 39 is preferably on the board 21 carrying the light sources 07 or on the carrier 27, for. B. assembled with integrally formed on the reflector module 39 mounting elements 41.
- Each of the modules M61 to M65 arranged longitudinally to the width B01 of the lighting strip 01 is preferably assigned at least one reflector module 39.
- the diffuser 38 of the lighting device 06 thus also acts like the arrangement of the mirrors 11; 16 and / or the lens 18 shaping and homogenizing with regard to the distribution of the light emitted by the light sources 07.
- the diffuser 38 contributes to a diffuse, shadow-free illumination of the lighting strip 01 itself on a surface 02 of the material 03 provided with a fine structure, the lighting strip 01 despite the distance A07 that the light sources 07 each have to the surface 02 of the material 03, is simultaneously formed as a very bright light strip.
- the arrangement of the mirror 11; 16 and / or the lens 18 and in particular the diffuser 38 contribute to the fact that light emerges from the illuminating device 06 in a homogeneous light distribution and thus itself on a reflecting surface 02 of the material 03, e.g. B. on a reflective paint, a cold seal, a window thread, a patch or the like, an internal structure of the lighting device 06, ie the arrangement of the individual light sources 07, not shown and consequently not visible even when viewed under the corresponding reflection angle.
- FIG. 12 shows a view of the optical system, the observation taking place from a plane perpendicular to the direction of movement 04 of the material 03.
- the lighting device 06 and the lighting strip 01 illuminated on the surface 02 of the material 03 are arranged parallel to one another at a distance A07, however an extension of the lighting device 06, ie its length B06, can be greater than the length L01 of the lighting strip 01 or the width B03 of material 03.
- the lighting device 06 is divided into a plurality of modules M61 to M65, ie in this example in five modules M61 to M65 arranged in a row next to one another, the light sources 07 arranged in each module M61 to M65 each emitting light to the lighting strip 01.
- the light remitted by the lighting strip 01 is detected by the detector 09 of the detection device 08 arranged at a distance A09 from the surface 02 of the material 03 within a spatial detection angle ⁇ that opens along the length L01 of the lighting strip 01, the detection angle ⁇ in this example being such is dimensioned such that it detects the light remitted by the lighting strip 01 over the entire length L01 of the lighting strip 01.
- the detection angle ⁇ forms a cross-sectional area on the surface 02 of the material 03, so that the detection angle ⁇ detects at least part of a cross-sectional area of the light beam emitted by the lighting device 06 and extends across the width B01 of the lighting strip 01.
- the cross-sectional area covered by the detection angle ⁇ is preferably at least as large as the area spanned on the surface 02 of the material 03 by the length L01 and width B01 of the lighting strip 01.
- the illumination device 06 and the detection device 08 are preferably arranged at a distance from one another such that the light emitted by the light sources 07 of the illumination device 06 to the surface 02 of the material 03 is from the surface 02 of the material 03 to the detector 09 of the detection device 08 according to the law "angle of incidence equals angle of reflection" is remitted.
- the angle of reflection expected due to the "angle of incidence”, ie the angle of reflection, can, however, depend on the Condition of the surface 02 of the material 03, in particular depending on its structure, in particular microstructures, also deviate from the aforementioned ideal condition, which is based on a completely reflecting surface.
- the quality of an image recorded with the detection device 08 by detecting the light remitted by the lighting strip 01 is crucially dependent on the light sources 07 of the lighting device 06 emitting light of constant light intensity. This is because fluctuations in the light intensity of the light emitted by the light sources 07 lead to the same result in the detection device 08 with respect to the signal fed to the image processing device 24 as changes in the nature of the surface 02 of the illuminated material 03, so that the causes of a signal change do not occur in the image processing device 24 can be distinguished. Under these circumstances, no reliable statements can be made about the nature of the surface 02 of the illuminated material 03 from an image evaluation carried out in the image processing device 24.
- Remedies are provided by measures which keep the light intensity of the light emitted by the light sources 07 of the lighting device 06 constant.
- the light sources 07 used in the lighting device 06 are preferably designed as bright light-emitting diodes 07 or laser diodes 07, the light intensity of which is temperature-dependent.
- measures for temperature stabilization of the light sources 07 arranged on the carrier 21 are described below.
- the advantage of the proposed solution is that the thermal load of the light sources 07 is dissipated directly at the point of origin, as a result of which short control times can be achieved.
- the light sources 07 are preferably arranged on a circuit board 21 which can be equipped with further electronic components and provided with conductor tracks.
- the semiconductor of the light emitting diodes 07 or laser diodes 07 is preferably in direct contact with the circuit board 21, which, for. B. is designed as an MCPCB (metal core printed circuit board) or as a circuit board 21 with a core made of aluminum and on its mounting side 32 carrying the light-emitting diodes 07 or laser diodes 07 to form the lowest possible heat transfer resistance, only a very thin layer on its heat-conducting surface having.
- MCPCB metal core printed circuit board
- FIG. 13 shows a circuit board 21 with a plurality of light sources 07 arranged thereon in a row, the circuit board 21 in turn being arranged on a carrier 27, the carrier 27 preferably having at least one channel 28 in its interior, preferably below the cellular arrangement of the light sources 07, wherein a liquid or gaseous cooling medium, e.g. B. water or air flows through the channel 28.
- a liquid or gaseous cooling medium e.g. B. water or air flows through the channel 28.
- An inlet 29 connected to a flow and an opening 31 connected to a return are preferably provided on the front of the carrier 27 for supplying and removing the cooling medium. B. flows straight.
- 14 shows a carrier 27 through which the cooling medium flows in two mutually opposite directions, as a result of which a balanced temperature profile is achieved in the carrier 27 along the linear arrangement of the light sources 07.
- the channel 28 can be deflected by 180 ° at one end of the carrier 27.
- a control device can keep the temperature of the cooling medium at the flow and the flow rate flowing through the channel 28 constant.
- the control device can also keep a difference between the temperature of the cooling medium at the flow and the temperature of the cooling medium at the return constant.
- the absolute temperature of the cooling medium is not so important, but rather that a maximum permissible temperature for the light sources 07, which results from the heat transfer resistances of the materials involved, is not exceeded, which the control device monitors by Temperature and a regulatory intervention responding to it is prevented. If a cooling medium whose temperature or flow rate can be regulated is not available, the cooling of the light sources 07 can also take place via an external cooling device (not shown) that is not connected to the circuit board 21.
- the circuit board 21 equipped with the light sources 07 is arranged on a carrier 27, the carrier 27 in turn being arranged on at least one Peltier element 33, but preferably a plurality of Peltier elements 33, the Peltier elements 33 are each connected to a heat sink 34 thermally separated from the carrier 27.
- a necessary temperature measurement for controlling the at least one Peltier element 33 by an electronic control device is carried out directly on the carrier 27 by a temperature sensor 36 attached to the latter. If the ambient temperature fluctuates, then only the temperature of the heat sink 34 fluctuates, but not the temperature of the light sources 07 arranged on the circuit board 21.
- the electronic control device can be integrated in the control device 23 connected to the lighting device 06.
- the optical system is to be designed in such a way that a usable image recording of the moving material 03 is possible.
- a detection device 08 designed as a line camera 08
- the detected quantity of the light remitted by the surface 02 of the moving material 03 changes depending on the speed of the moving material 03. This also changes the brightness of the image acquisition. With larger speed changes, as in the machines mentioned Usually, image acquisition can become unusable.
- a duty cycle t3 of an individual light source 07 or a group of light sources 07 of the lighting device 06 which is preferably controlled by a power source 22 controlled by the control device 23 , in particular a constant current source 22, can be controlled with a triggering, d. H. of an exposure time t1 of the line scan camera 08, so that the surface 02 of the moving material 03 is always illuminated with the same amount of light regardless of the speed of the moving material 03. This results in a constant brightness for that of the detection device 08, for. B.
- the line camera 08 captured image over a wide range of the speed of the moving material 03, because the control device 23 measures the duty cycle t3 of an individual light source 07 or a group of light sources 07 of the lighting device 06 always less than the exposure time t1 of the line camera 08.
- a plurality of groups of light sources 07 are preferably provided in the lighting device 06, to which at least one current source 22, in particular one constant current source 22, is preferably assigned.
- the switch-on times t3 of the light sources 07 are controlled by the control device 23 connected to the lighting device 06. B. controlled in groups or individually independently of the respective current sources 22, so that a light quantity profile can be set over the length of the preferably light sources 07 arranged in a row.
- the setting of a light quantity profile, preferably along the length L01 of the lighting strip 01 has the advantage that transmission losses through optics of the detection device 08 (not shown), e.g. B. the line scan camera 08, can be compensated.
- the light sensor 37 measures the amount of light emitted by the light sources 07 of the lighting device 06 in order to use the measurement signal of the light sensor 37 to switch on the duration t3 of the light sources 07 ⁇ controlled by the current sources 22 to the control device 23. B. to adapt to a degradation behavior of the light sources 07 and with the control of the light sources 07 z. B. to compensate for a declining with their aging radiation in their amount of light. Also, the control device 23 can the duty cycle t3 of the light sources 07 z. B. adapt to different optical properties of the material to be illuminated 03, in particular adapt automatically.
- FIG. 16 shows the time behavior of the detection device 08, e.g. B. the line camera 08, and that of the light sources 07 of the lighting device 06.
- the line camera 08 is switched on according to the upper, first time profile at a certain point in time, so that the exposure time t1 of the line camera 08 begins at this point in time.
- a time-out t2 which is dependent on the speed of the moving material 03, between two adjacent image lines of the line camera 08 which follow one another in the direction of movement 04 of the material 03.
- the time behavior s for the line scan camera 08 and the light sources 07 are repeated periodically in the previously described fixed correlation. Only in comparison with the light source 07 triggered in its duty cycle t3 is that in the lower, third time curve of FIG. 16 Time behavior of the duty cycle t5 shown for a constant light source.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lenses (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05731852A EP1730500B1 (de) | 2004-03-23 | 2005-03-15 | Optische systeme zur erzeugung eines beleuchtungsstreifens |
DE502005001025T DE502005001025D1 (de) | 2004-03-23 | 2005-03-15 | Optische systeme zur erzeugung eines beleuchtungsstreifens |
CN2005800166468A CN1957247B (zh) | 2004-03-23 | 2005-03-15 | 用于生成照射条带的光学系统 |
US10/594,092 US7682040B2 (en) | 2004-03-23 | 2005-03-15 | Optical system for creating an illuminated strip |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004014541.5 | 2004-03-23 | ||
DE102004014541A DE102004014541B3 (de) | 2004-03-23 | 2004-03-23 | Optisches System zur Erzeugung eines Beleuchtungsstreifens |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005093395A1 true WO2005093395A1 (de) | 2005-10-06 |
Family
ID=34399823
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/051155 WO2005093395A1 (de) | 2004-03-23 | 2005-03-15 | Optische systeme zur erzeugung eines beleuchtungsstreifens |
Country Status (6)
Country | Link |
---|---|
US (1) | US7682040B2 (de) |
EP (1) | EP1730500B1 (de) |
CN (1) | CN1957247B (de) |
AT (1) | ATE366924T1 (de) |
DE (2) | DE102004014541B3 (de) |
WO (1) | WO2005093395A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007014811A1 (de) | 2007-03-28 | 2008-10-09 | Rehau Ag + Co | Lichtemittierende Anordnung |
WO2012059861A1 (en) | 2010-11-02 | 2012-05-10 | Kba-Notasys Sa | Device for irradiating substrate material in the form of a sheet or web and uses thereof |
DE102012110793A1 (de) * | 2012-11-09 | 2014-05-15 | R.A.M. Realtime Application Measurement Gmbh | Vorrichtung und Verfahren zur Abbildung eines bahnförmigen Materials |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007013913A (ja) * | 2005-05-30 | 2007-01-18 | Toyota Industries Corp | 照明装置および原稿読取装置 |
DE102005031957B4 (de) | 2005-07-08 | 2007-03-22 | Koenig & Bauer Ag | Vorrichtung zur Inspektion eines Bedruckstoffes mit uneinheitlich reflektierenden Oberflächen |
DE102005047913B3 (de) | 2005-10-06 | 2007-06-14 | Texmag Gmbh Vertriebsgesellschaft Gmbh | Vorrichtung zur Emission von linienartigem Licht |
DE102006045626A1 (de) | 2006-09-27 | 2008-04-03 | Giesecke & Devrient Gmbh | Vorrichtung und Verfahren zur optischen Untersuchung von Wertdokumenten |
DE102007009580A1 (de) * | 2007-02-26 | 2008-08-28 | Evonik Röhm Gmbh | Offline-Fehlerinspektionsgerät für transparente Kunststoffproben auf der Basis eines Consumer- Flachbettscanner mit Durchlichteinheit |
RU2402815C1 (ru) * | 2009-04-10 | 2010-10-27 | Общество С Ограниченной Ответственностью "Конструкторское Бюро "Дорс" (Ооо "Кб "Дорс") | Устройство для контроля подлинности банкнот |
RU2447499C1 (ru) * | 2010-12-21 | 2012-04-10 | Общество С Ограниченной Ответственностью "Конструкторское Бюро "Дорс" (Ооо "Кб "Дорс") | Устройство для измерения оптических характеристик документа |
DE102011002181A1 (de) * | 2011-04-19 | 2012-10-25 | Bundesdruckerei Gmbh | Verfahren und Vorrichtung zur Überprüfung von Sicherheitsmerkmalen in Sicherheitsdokumenten |
AT512200A1 (de) * | 2011-11-30 | 2013-06-15 | Ait Austrian Inst Technology | Verfahren zur aufnahme eines zeilenbilds |
US8797611B2 (en) | 2012-12-12 | 2014-08-05 | Hewlett-Packard Development Company, L.P. | Illumination assembly |
US9188733B2 (en) | 2013-06-07 | 2015-11-17 | Steelcase Inc. | Panel light assembly |
DE102013221334A1 (de) * | 2013-10-21 | 2015-04-23 | Volkswagen Aktiengesellschaft | Verfahren und Messvorrichtung zum Bewerten von Strukturunterschieden einer reflektierenden Oberfläche |
KR101671736B1 (ko) * | 2015-06-02 | 2016-11-03 | 한국생산기술연구원 | 탄소섬유강화플라스틱(cfrp) 부품에 대한 광학 검사 방법 |
CN106066330A (zh) * | 2016-06-23 | 2016-11-02 | 昆山辉杰视自动化科技有限公司 | 一种用于线扫描的照明装置以及检测系统 |
CN106213904B (zh) * | 2016-09-14 | 2022-02-22 | 维融科技股份有限公司 | 一种自助银行柜台 |
WO2018068009A1 (en) * | 2016-10-07 | 2018-04-12 | Hutchinson Technology Incorporated | On-axis and diffuse illumination for inspection systems |
EP3748342B1 (de) * | 2019-06-06 | 2023-05-03 | Gebrüder Loepfe AG | Optischer sensor zur messung einer eigenschaft eines länglichen textilkörpers in einem gleichmässigen optischen feld |
CN110778946A (zh) * | 2019-11-18 | 2020-02-11 | 隋功然 | 一种led投光灯装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0477536A2 (de) * | 1990-09-25 | 1992-04-01 | Alltrista Corporation | System zur optischen Analyse von Blättern |
EP0662609A2 (de) * | 1994-01-07 | 1995-07-12 | Applied Intelligent Systems, Inc. | Beleuchtungssystem und Verfahren zum Erzeugen eines Bildes eines Gegenstandes |
WO1997016024A1 (en) * | 1995-10-23 | 1997-05-01 | Northeast Robotics, Inc. | Hockey puck shaped continuous diffuse illumination apparatus and method |
WO1998052088A1 (en) * | 1997-05-13 | 1998-11-19 | Northeast Robotics Llc | Imaging system and method of imaging indicia on wafer |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6139771A (ja) * | 1984-07-31 | 1986-02-25 | Canon Inc | 画像読取装置 |
US4972093A (en) * | 1987-10-09 | 1990-11-20 | Pressco Inc. | Inspection lighting system |
JPH02535A (ja) * | 1987-11-07 | 1990-01-05 | Minolta Camera Co Ltd | 熱転写カラープリンタ |
JPH01255371A (ja) | 1988-04-05 | 1989-10-12 | Fujitsu Ltd | 発光ダイオードのドライブ方式 |
ATE150870T1 (de) * | 1990-12-08 | 1997-04-15 | Schoeller F Jun Gmbh Co Kg | Verfahren zur untersuchung von bahnförmigem, durchscheinendem material, insbesondere fotografischen papierträgern |
DE4102122C2 (de) | 1990-12-08 | 1994-02-17 | Schoeller Felix Jun Papier | Verfahren zur visuellen Kontrolle der Formation von einer in einer Richtung bewegten Bahn aus fotografischem Basispapier oder Basiskarton |
JPH053527A (ja) | 1991-06-25 | 1993-01-08 | Canon Inc | 密着型イメージセンサ |
JPH06291939A (ja) * | 1993-03-30 | 1994-10-18 | Toshiba Lighting & Technol Corp | Led光源装置、読取装置および読取装置組込機器 |
DE4314219A1 (de) | 1993-04-30 | 1994-11-03 | Jenoptik Jena Gmbh | Anordnung zur punktuellen Messung der Remission |
DE4321177A1 (de) * | 1993-06-25 | 1995-01-05 | Heidelberger Druckmasch Ag | Vorrichtung zur parallelen Bildinspektion und Farbregelung an einem Druckprodukt |
DE19511782C2 (de) | 1995-03-30 | 1997-07-31 | Kurandt System Gmbh | Verfahren zur Prüfung von Farbdruckvorlagen und Vorrichtung zur Durchführung des Verfahrens |
DE19532877A1 (de) * | 1995-09-06 | 1997-03-13 | Giesecke & Devrient Gmbh | Vorrichtung zur linienförmigen Beleuchtung von Blattgut, wie z. B. Banknoten oder Wertpapiere |
US5936353A (en) * | 1996-04-03 | 1999-08-10 | Pressco Technology Inc. | High-density solid-state lighting array for machine vision applications |
JPH09277593A (ja) * | 1996-04-19 | 1997-10-28 | Oki Electric Ind Co Ltd | 受発光素子モジュールおよびその形成方法 |
DE19617009C2 (de) | 1996-04-27 | 1999-05-20 | Roland Man Druckmasch | Photoelektrische Meßeinrichtung |
US5690417A (en) * | 1996-05-13 | 1997-11-25 | Optical Gaging Products, Inc. | Surface illuminator with means for adjusting orientation and inclination of incident illumination |
US6022124A (en) * | 1997-08-19 | 2000-02-08 | Ppt Vision, Inc. | Machine-vision ring-reflector illumination system and method |
US6473165B1 (en) * | 2000-01-21 | 2002-10-29 | Flex Products, Inc. | Automated verification systems and methods for use with optical interference devices |
JP2002142082A (ja) * | 2000-10-31 | 2002-05-17 | Pfu Ltd | 画像読取装置 |
DE10061070A1 (de) | 2000-12-08 | 2002-06-13 | Isra Vision Systems Ag | Beleuchtungseinrichtung |
JP3889992B2 (ja) * | 2002-05-17 | 2007-03-07 | 株式会社ミツトヨ | リング照明装置 |
DE20213431U1 (de) | 2002-08-31 | 2002-11-07 | MAN Roland Druckmaschinen AG, 63075 Offenbach | Einrichtung zur Qualitätskontrolle an Drucksachen |
DE20303574U1 (de) | 2003-03-06 | 2003-04-30 | MAN Roland Druckmaschinen AG, 63075 Offenbach | Bildinspektionssystem für eine Druckmaschine |
DE102004003613B4 (de) * | 2004-01-25 | 2015-01-08 | grapho metronic Meß- und Regeltechnik GmbH | Vorrichtung und Erfassung eines Bildes von einem vorbestimmten Ausschnitt eines in Bewegung befindlichen Druckerzeugnisses |
-
2004
- 2004-03-23 DE DE102004014541A patent/DE102004014541B3/de not_active Withdrawn - After Issue
-
2005
- 2005-03-15 DE DE502005001025T patent/DE502005001025D1/de active Active
- 2005-03-15 EP EP05731852A patent/EP1730500B1/de not_active Not-in-force
- 2005-03-15 AT AT05731852T patent/ATE366924T1/de active
- 2005-03-15 US US10/594,092 patent/US7682040B2/en not_active Expired - Fee Related
- 2005-03-15 CN CN2005800166468A patent/CN1957247B/zh not_active Expired - Fee Related
- 2005-03-15 WO PCT/EP2005/051155 patent/WO2005093395A1/de active IP Right Grant
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0477536A2 (de) * | 1990-09-25 | 1992-04-01 | Alltrista Corporation | System zur optischen Analyse von Blättern |
EP0662609A2 (de) * | 1994-01-07 | 1995-07-12 | Applied Intelligent Systems, Inc. | Beleuchtungssystem und Verfahren zum Erzeugen eines Bildes eines Gegenstandes |
WO1997016024A1 (en) * | 1995-10-23 | 1997-05-01 | Northeast Robotics, Inc. | Hockey puck shaped continuous diffuse illumination apparatus and method |
WO1998052088A1 (en) * | 1997-05-13 | 1998-11-19 | Northeast Robotics Llc | Imaging system and method of imaging indicia on wafer |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007014811A1 (de) | 2007-03-28 | 2008-10-09 | Rehau Ag + Co | Lichtemittierende Anordnung |
WO2012059861A1 (en) | 2010-11-02 | 2012-05-10 | Kba-Notasys Sa | Device for irradiating substrate material in the form of a sheet or web and uses thereof |
DE102012110793A1 (de) * | 2012-11-09 | 2014-05-15 | R.A.M. Realtime Application Measurement Gmbh | Vorrichtung und Verfahren zur Abbildung eines bahnförmigen Materials |
DE102012110793B4 (de) * | 2012-11-09 | 2020-09-03 | R.A.M. Realtime Application Measurement Gmbh | Vorrichtung und Verfahren zur Abbildung eines bahnförmigen Materials |
Also Published As
Publication number | Publication date |
---|---|
CN1957247B (zh) | 2010-05-05 |
EP1730500B1 (de) | 2007-07-11 |
US20070188722A1 (en) | 2007-08-16 |
DE102004014541B3 (de) | 2005-05-04 |
US7682040B2 (en) | 2010-03-23 |
EP1730500A1 (de) | 2006-12-13 |
DE502005001025D1 (de) | 2007-08-23 |
ATE366924T1 (de) | 2007-08-15 |
CN1957247A (zh) | 2007-05-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1730500B1 (de) | Optische systeme zur erzeugung eines beleuchtungsstreifens | |
EP1727678B1 (de) | Optisches system zur erzeugung eines beleuchteten gebildes | |
DE69723542T2 (de) | Bildsensor | |
DE19781573B4 (de) | Optischer Sensor für ein Tintenstrahldrucksystem | |
DE102007031230B3 (de) | Dokumentenerfassungssystem und Dokumentenerfassungsverfahren | |
DE69931503T2 (de) | Vorrichtung und verfahren zur diffusen beleuchtung einer oberfläche | |
DE112013006158B4 (de) | Lichtleiter, Lichtquellenvorrichtung und Bildleseeinrichtung | |
EP1902308B1 (de) | Vorrichtung zur inspektion einer oberfläche | |
DE10149780B4 (de) | Einrichtung zur Beleuchtung einer Messfläche und Vorrichtung und Verfahren zur Bestimmung der visuellen Eigenschaften von Körpern | |
DE60302273T2 (de) | LED-Fiber-Beleuchtungseinheit mit unbelastetem Lichtleiter | |
DE3519772C2 (de) | ||
DE112014005553T5 (de) | Verfahren und System zum Emittieren von versetzter Ausleuchtung für reduziertes Streulicht | |
EP0762174A2 (de) | Vorrichtung zur linienförmigen Beleuchtung von Blattgut, wie z.B. Banknoten oder Wertpapiere | |
DE102009032210B4 (de) | Bearbeitungsanlage | |
DE102020106980A1 (de) | Bildabtastvorrichtung | |
EP2513874B1 (de) | Sensor zur prüfung von wertdokumenten | |
DE102004035786B4 (de) | Inline-Inspektionssysteme | |
DE10137043A1 (de) | Vorrichtung zur Untersuchung von Wertdokumenten | |
DE68913064T2 (de) | Verfahren und Vorrichtung zur Prüfung von spiegelnd reflektierenden Oberflächen. | |
DE112015001325T5 (de) | Beleuchtungsvorrichtung und Bild-Abtastvorrichtung | |
DE102006016209A1 (de) | Anordnung zur Erfassung und Verarbeitung von Marken für die Registerregelung an Druckmaschinen | |
EP1808061B1 (de) | Beleuchtungsanordnung und optisches messsystem zum erfassen von objekten | |
WO2015128264A1 (de) | Inspektionsvorrichtung mit inverser folienlinse | |
DE102015209005B4 (de) | Kamera mit integrierter Beleuchtungseinrichtung | |
EP2531982A2 (de) | Beleuchtungseinrichtung und sensor zur prüfung von wertdokumenten |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DPEN | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed from 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 10594092 Country of ref document: US Ref document number: 2007188722 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2005731852 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200580016646.8 Country of ref document: CN |
|
WWP | Wipo information: published in national office |
Ref document number: 2005731852 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 2005731852 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 10594092 Country of ref document: US |