EP1744882A2 - Dispositif d'exposition aux rayons ultraviolets - Google Patents

Dispositif d'exposition aux rayons ultraviolets

Info

Publication number
EP1744882A2
EP1744882A2 EP05745703A EP05745703A EP1744882A2 EP 1744882 A2 EP1744882 A2 EP 1744882A2 EP 05745703 A EP05745703 A EP 05745703A EP 05745703 A EP05745703 A EP 05745703A EP 1744882 A2 EP1744882 A2 EP 1744882A2
Authority
EP
European Patent Office
Prior art keywords
reflector
radiation
irradiation device
radiation source
controllable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP05745703A
Other languages
German (de)
English (en)
Other versions
EP1744882B1 (fr
Inventor
Rainer Gaus
Wolfgang Mohr
Günther GESELL
Thomas Klingenberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ELTOSCH Torsten Schmidt GmbH
Original Assignee
Advanced Photonics Technologies AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Advanced Photonics Technologies AG filed Critical Advanced Photonics Technologies AG
Publication of EP1744882A2 publication Critical patent/EP1744882A2/fr
Application granted granted Critical
Publication of EP1744882B1 publication Critical patent/EP1744882B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0403—Drying webs
    • B41F23/0406—Drying webs by radiation
    • B41F23/0409—Ultraviolet dryers

Definitions

  • the invention relates to an irradiation device according to the preamble of claim 1 and uses of such.
  • Irradiation devices of this type or a similar type are known from the prior art.
  • No. 4,019,062 teaches a technical UV radiation unit with short-arc UV lamps, these adjacent paraboloidal reflectors and a rotatable concave-spherical reflector, which focuses the UV radiation on a presettable area of a substrate to be treated.
  • DE 102 43 577 AI also shows and describes a similar UV irradiation device, in which an adjustment of the controllable reflector is provided in a parallel or vertical switch-off position to the radiation attachment surface of the (in particular parabolic) reflector directly associated with the radiation source.
  • a device for curing substances on a substrate which also has essential features of such an irradiation device and in which reflectors in particular are provided are, whose surface facing the UV radiation source has different optical properties than the surface facing a carrier body.
  • the supporting structure of the housing is preferably formed from an extruded aluminum profile, and the reflectors are in particular screwed onto an actively cooled support body.
  • the invention is therefore based on the object of providing an improved, in particular quickly and effectively controllable and long-life irradiation device of the generic type, which is also efficient and inexpensive to manufacture.
  • the proposed irradiation device has two - preferably identical - radiation sources, the processing-effective radiation of which is directed to the substrate to be acted upon by a common, centrally controllable reflector, while the same reflector is in a switch-off position Keeps radiation from both radiation sources away from the substrate.
  • the proposed solution offers a significantly increased flexibility in adapting to specific powers of approximately 15 W / cm to approximately 240 W / cm compared to known radiation devices.
  • the interaction between two radiation sources results in an optimal relationship between intensity and energy distribution on the substrate to be processed (in particular to be cross-linked or hardened) for many processing purposes.
  • the radiation profile can easily be determined by the geometry of the controllable reflector (deflection mirror) in a nem range can be changed without other components of the irradiation device necessarily also having to be changed.
  • controllable reflector as a shutter (shutter), together with the usual reduction in the emitter power of the radiation sources when switched off, enables a practically unlimited standby mode.
  • the radiation sources, the controllable reflector and the housing are elongated in the manner of a profile. Furthermore, it is provided that the controllable reflector and / or the auxiliary reflectors and / or the end reflector sections have a curved reflector surface. It goes without saying that with a suitable curvature, especially of the partially parabolic or partially elliptical type, an essentially linear radiator can be imaged favorably on a large-area workpiece.
  • the radiation field generated on the substrate can be predicted particularly easily. If the two radiation sources can be controlled separately, in applications where only the power of one emitter is required, the irradiation device's production time is doubled.
  • controllable reflector can be rotated between the first and second positions and the drive device has a, in particular electromotive or pneumatic, rotary actuator.
  • This version is particularly compact, which is of particular advantage in applications with little available space - for example in printing machines.
  • auxiliary reflector in the angular range around the radiation sources, which are not of reflector surfaces of the controllable Reflector is ingested, at least one elongated, in particular wave-selective, auxiliary reflector is arranged, which essentially directs processing radiation toward the controllable reflector.
  • auxiliary reflectors are designed to be wavelength-selective in such a way that their reflectivity for the actual processing radiation is higher than that for non-processing radiation components, in particular undesired heat radiation, the thermal load on a sensitive substrate can be further reduced.
  • a version that is not wavelength-selective can also be considerably advantageous for reasons of optimal energy utilization of the radiation generated.
  • an upper and lower auxiliary reflector are provided in the spatial areas above and below the first and second radiation sources, respectively, which in cross section have in particular an isosceles approximately U-shape.
  • an end reflector section is assigned to the ends of each radiation source.
  • controllable reflector and / or the auxiliary reflectors and / or the end reflector sections each have at least one coolant channel for the passage of a cooling fluid.
  • radiation sources with such a high output are used that active cooling of the device components most exposed to radiation is necessary for reasons of service life.
  • liquid cooling is required, so that the coolant channels for a liquid coolant must be dimensioned and the connections made accordingly.
  • the controllable reflector have at least one reflector surface detachably inserted into a support structure. This makes it possible in a simple manner to use a few types of support elements for different concrete geometric configurations and nevertheless to cover many applications by using differently shaped reflector surfaces.
  • the or each radiation source is assigned a stationary auxiliary reflector, which likewise has at least one detachably inserted reflector surface, which essentially directs the processing radiation toward the controllable reflector.
  • the combination of controllable reflector and auxiliary reflector (s) with equally variable reflector surfaces offers a particularly high degree of variability in the implementation of the desired radiation density distributions and other radiation parameters.
  • the separately manufactured and inserted reflector surfaces are metal sheets with a shape of curvature which is determined by the shape and / or which is set in the inserted state and optionally suitable (possibly different) coatings on the front and / or rear.
  • suitable (possibly different) coatings on the front and / or rear.
  • glass reflectors with reflective and, in particular, selectively reflective or dichroic coatings can be used.
  • the or each support element is designed as an extruded or cast profile, and in particular consists of aluminum or an aluminum alloy.
  • the or each reflector surface is held in the respective support element by a snap or snap connection.
  • controllable reflector is divided in the longitudinal direction, at least one first and the second part can be moved independently of one another such that, when the device is in operation, only one of them is in the first position and the other is in the second position.
  • This enables a so-called "format switch-off" in printing machines in which substrates of different widths are printed in an extremely simple and efficient manner.
  • Such an adaptation has the advantage that the radiation device only enters radiation into the processing system (for example printing machine) to the extent that is really required, and unnecessary heating of machine sections not covered with a workpiece is avoided.
  • this embodiment is designed in such a way that between the first and second part of the controllable reflector there is provided a driver which is dependent on the direction of movement and which only takes the second part with the first part in one direction of movement, but does not take it in another direction of movement ,
  • the first and second parts can be rotated on a common axis and the driver is dependent on the direction of rotation.
  • this development is designed in such a way that the first and second parts are mounted on a common hollow shaft and can be driven separately via this or a separate force transmission element incorporated therein.
  • the or each radiation source is assigned at least one auxiliary reflector that can be folded or moved into a maintenance position.
  • this can also form a housing part - but this is not absolutely necessary in the sense of this variant.
  • the respective radiation source is accessible by folding or moving the auxiliary reflector and can be exchanged without problems or, if necessary, also cleaned.
  • a first preferred embodiment provides that the auxiliary reflector is designed and mounted in such a way that the radiation source is sufficiently accessible to replace it by folding or moving it.
  • the or each beam Source source two associated with a housing part, foldable or movable auxiliary reflectors and these are designed and stored such that the radiation source is sufficiently accessible for replacing them by folding them.
  • Both versions have in common that the or each foldable or displaceable auxiliary reflector is expediently held in the operating position by a latching or snap connection on a stationary housing part.
  • Another relatively independent embodiment of the invention provides that an actively cooled radiation absorber is arranged in the radiation direction of the controllable reflector in which the processing radiation is deflected away from the substrate. With this arrangement, it is avoided that the radiation, which is reduced in intensity even when it is switched off, but is still of considerable intensity, is emitted from the corresponding system without further ado - which is problematic from an occupational health and safety point of view, but also because of possible thermal damage to neighboring system parts ,
  • the radiation absorber has a cooling fluid channel, the surface of which facing the controllable reflector has a high absorption capacity for the radiation from the radiation source (s).
  • the cooling fluid channel of the radiation absorber is designed and dimensioned as a cooling air channel.
  • the cooling fluid channel (with a correspondingly stable wall) is designed in such a way that it forms the mechanical carrier of the entire irradiation device. Then, in particular, at least some of the auxiliary reflectors are mounted thereon in a foldable or displaceable manner, and the mounting and contacting of the radiation sources is then also attached in the region of the cooling fluid channel.
  • the cooling fluid channel especially in its design as an air channel, can accommodate the drive of the controllable reflector, including electronic control, electrical supply lines and measuring and monitoring devices, as well as their signal lines.
  • a structurally elaborate end or respectively is at the ends of the absorber system. Head plate provided, which realizes the mechanical connection of the components with each other, the connection of the individual cooling fluid channels, the pivot points for pivotable or foldable components and the reception and contacting of the radiation sources.
  • auxiliary reflectors or absorbers are also rotatably mounted between the head plates in a suitable construction. At the same time, cooling water is supplied via the swivel joint.
  • the or each radiation source is a medium or high-pressure UV lamp.
  • the wavelength-selective controllable reflector and / or auxiliary reflector has a high reflection coefficient in the UV range and a substantially lower reflection coefficient in the IR range.
  • other types of wavelength selectivity are also potentially important for special applications, but from the above-discussed aspect of keeping heat radiation as far away as possible in many applications of UV drying / crosslinking processes, this UV / IR selectivity is of particular importance. In a manner known per se, it can be achieved by coating the reflector surface (s) with a dichroic layer.
  • an embodiment results in which the Radiation source facing away and facing the support element surface of at least a portion of the reflector surfaces has a high IR emissivity and / or is in good thermal contact with the support element such that a substantial part of the incident IR radiation components is dissipated into the respective reflector interior.
  • the or each radiation source is forced-cooled by cooling air blown into the housing and / or extracted from the housing.
  • the cooling air duct of the radiation absorber has openings for air exchange with the space surrounding the radiation source (s).
  • the side facing the substrate is essentially closed by a protective pane which is transparent to the processing radiation, in particular wavelength-selective reflecting and / or absorbing.
  • the protective screen has a low reflection and absorption coefficient in the UV range and a significantly higher reflection and / or absorption coefficient in the IR range.
  • other types of wavelength selectivity are of practical importance and can be implemented (using means known per se).
  • FIG. 1 is a perspective view of an irradiation device according to a first embodiment of the invention in the closed state (with the front head plate removed),
  • FIG. 2 shows a perspective view of the radiation device from FIG. 1 in the state opened for maintenance purposes, from a different perspective,
  • FIG. 1 is a perspective view of an irradiation device according to a first embodiment of the invention in the closed state (with the front head plate removed)
  • FIG. 2 shows a perspective view of the radiation device from FIG. 1 in the state opened for maintenance purposes, from a different perspective
  • FIG. 1 is a perspective view of an irradiation device according to a first embodiment of the invention in the closed state (with the front head plate removed)
  • FIG. 2 shows a perspective view of the radiation device from FIG. 1 in the state opened for maintenance purposes, from a different perspective
  • FIG. 1 is a perspective view of an irradiation device according to a first embodiment of the invention in the closed state (with the front head plate removed)
  • FIG. 2 shows
  • FIG. 3 shows a schematic cross-sectional illustration of an irradiation device according to a second embodiment of the invention in the operating state
  • FIG. 4 shows a schematic cross-sectional representation of the irradiation device according to FIG. 3 in the switched-off state
  • FIG. 5 shows a schematic cross-sectional representation of the radiation device according to FIG. 3 in the open state on one side for changing a radiation source
  • FIG. 6A and 6B are schematic diagrams (in perspective representation) of a preferred embodiment of the controllable reflector of the irradiation device according to FIG. 1 or 3,
  • Fig. 7 is a schematic cross-sectional view of an irradiation device according to a third embodiment of the invention in the operating state
  • FIG. 8 shows a schematic cross-sectional illustration of the irradiation device according to FIG. 7 in the switched-off state
  • Fig. 9 is a schematic cross-sectional view of the Bestrahlungsein- ⁇ 'rect according to Fig. 7 in the laterally opened state to change a radiation source.
  • FIG. 1 and 2 show a UV irradiation device 100 for use in a printing press for curing printing inks in two perspective views, specifically in FIG. 1 in the operating state and in FIG. 2 in a maintenance position.
  • the irradiation device 100 has a housing 101 in the basic shape of a square prism with beveled corners.
  • a cooling air duct 103 is provided which extends over the entire width of the irradiation device 100.
  • the UV radiation device is delimited by a UV-permeable protective pane 105, which essentially occupies the entire bottom of the housing.
  • the housing 101 comprises two foldable side walls 107 and 109 which, like the protective disk 105, extend over the entire length of the housing.
  • the housing 101 is closed off by head plates 111, of which only the rear one is shown.
  • the radiation device 100 has two identical, elongated tubular UV emitters 113, 115 as radiation sources, which extend in the longitudinal direction of the radiation device, parallel to the housing walls.
  • the UV lamps 113, 115 are held and contacted in a suitable manner in the area of the head plates 111, but this is not shown in the schematic diagrams of FIGS. 1 and 2.
  • Both UV emitters 113, 115 are each assigned auxiliary or primary reflectors 117, 119 of the same shape, which encompass the emitters at significantly more than 180 ° and whose reflector surface (not specifically designated) is essentially trough-shaped.
  • the auxiliary reflectors 117, 119 can be folded down over an axis of rotation located in the upper region of the housing 111 in a manner similar to the housing side walls 107, 109, so that the associated UV lamp is seen from the housing side becomes freely accessible and can be easily replaced.
  • each of the auxiliary reflectors has a cooling fluid channel 117a, 117b and 119a, 119b for the passage of cooling water, with which heat introduced into the auxiliary reflectors can be dissipated by the radiation sources 113, 115.
  • the auxiliary reflectors 117, 119 are formed in the illustrated embodiment as an extruded aluminum profile.
  • this extruded profile 121 is attached on the lower boundary wall of the cooling air duct 103, in close thermal contact with it, another aluminum extruded profile 121 is attached, which also has two cooling fluid ducts 121a, 121b and whose function is explained further below. While the upper side of this extruded profile 121 is flat, corresponding to the shape of the lower boundary of the cooling air duct, its lower side is concave in the shape of a circular segment.
  • a rotatable reflector 125 in the basic shape of an equilateral triangular prism with concavely shaped side walls is provided in the center between the UV lamps 113, 115 on an axis of rotation 123.
  • this rotatable reflector 125 reflects the directly incident radiation as well as the radiation of the UV emitters 113, 115 deflected via the auxiliary reflectors 117, 119 to the underside of the irradiation device 100, and thus through the protective pane 105 to an underlying one Workpiece or substrate (not shown).
  • FIG. 1 A rotatable reflector 125 in the basic shape of an equilateral triangular prism with concavely shaped side walls is provided in the center between the UV lamps 113, 115 on an axis of rotation 123.
  • this rotatable reflector 125 reflects the directly incident radiation as well as the radiation of the UV emitters 113, 115 deflected via the auxiliary reflectors 117, 119 to the under
  • the shape of the auxiliary reflectors 117, 119 is determined in such a way that the rotatable reflector 125 can rotate freely between them and at the same time largely prevent the direct impact of radiation from the radiation sources 113, 115 on the workpiece ,
  • the rotatable reflector 125 is also an extruded aluminum part.
  • a pronounced wavelength-selective (dichroism) of the auxiliary reflectors and of the rotatable reflector can be achieved - in a manner known per se - by coating the reflecting surfaces or inserting suitable dichroic surface elements.
  • the described arrangement of the UV emitters, primary or auxiliary reflectors and the controllable reflector ensures that the majority of the IR radiation emitted by the radiation sources 113, 115 in addition to the required UV radiation first falls on the cooled surfaces of the auxiliary reflectors and is absorbed there and can be derived.
  • the rotatable shaft which can be implemented, for example, via a hollow axis of rotation 123 Ren reflector 125, the heat introduced into it by the IR radiation can also be dissipated.
  • this construction makes it possible for a substantial part of the heat radiation to be removed before the processing radiation passes through the protective pane 105 and therefore cannot cause any damage to the substrate or to a coating present there.
  • Additional filtering - but also associated with a loss of processing radiation power - can be achieved by a selectively reflecting / absorbing design of the protective pane, in which the UV components are largely let through, but IR components (and possibly also visible components) are partially reflected back to the rotating reflector and the auxiliary reflectors or absorbed in the lens material.
  • active air cooling (not shown) is also provided in the lower part of the housing of the radiation device.
  • the rotatable reflector 125 not only for deflecting the radiation from the radiation sources 113, 115 onto a substrate, but - in another rotational position - also for keeping this radiation away from the substrate and for deflecting it onto the radiation absorber 121 serves from where the heat is finally dissipated via the cooling air duct 103.
  • FIGS. 3 to 5 show a modified embodiment.
  • FIGS. 3 to 5 show, in schematic cross-sectional representations, on the one hand the operating state (FIG. 3) and the state (FIG. 5) of this modified UV irradiation device 300 which is partially open for maintenance purposes. However, they also show (in FIG. 4) a shutdown State in which the radiation sources are operated with reduced power but are not completely switched off and in which exposure of the workpiece to the remaining radiation power should therefore be prevented.
  • the basic structure of the irradiation device 300 is similar to that of the irradiation device 100 according to FIGS. 1 and 2, so that general instructions from the above description are not repeated here. For the rest, the designation of essential device parts with reference numbers is adapted to that in the first embodiment.
  • the lower boundary of the cooling air duct 303 is not flat but convex, and instead of a one-piece absorber element, two radiation absorbers 321 and 322 are provided here, each one individually Have cooling fluid channel 321a or 322a.
  • the auxiliary reflectors are also designed in two parts here and each include an upper and lower auxiliary reflector 317, 318 and 319, 320 in association with the UV lamps 323 and 325.
  • Each of the auxiliary reflectors 317 to 320 here has a single cooling fluid channel 317a to 320a.
  • FIGS. 3 and 4 the course of the radiation is sketched with arrows as an example. It can be seen that in the operating position according to FIG. 3 (ie with the "shutter" open) the radiation from the radiation sources 323, 325 is directed by single or multiple reflection essentially to the underside of the radiation device and through the protective pane, while in the in 4, the switch-off position shown essentially directs the radiation to the absorber elements 321, 322 and keeps it away from the underside of the irradiation device.
  • the maintenance position shown in FIG. 5 essentially corresponds to the state of the right housing side wall of the irradiation device according to the first embodiment in FIG. 2. It can be seen that the auxiliary reflectors 319, 320 are connected to one another and together upwards from the associated radiation source 325 can be folded away.
  • the arrow pointing to the right from the radiation source symbolizes an exchange of radiation sources.
  • the two-part design of the radiation absorber facilitates integrated cooling air guidance within the entire housing the irradiation device, possibly in combination with the so-called blown air and suction air principle, ie the effect of the air exchange by supplying air under pressure or air extraction.
  • the spacing area between the radiation absorbers 321 and 322 acts as a cooling air connecting duct 308.
  • lateral air ducts 304, 306 serve to pass cooling air on the side walls of the housing 301 and thus for additional heat dissipation from the auxiliary reflectors and directly from them radiation sources.
  • FIG. 5 only a part of the components or areas of the irradiation device 300 are designated by reference numerals, and in addition to FIGS. 3 and 4 there are schematically a contact holder 316 of the radiator 315 and three cooling fluid channels inside the rotatable reflector 325 326 shown.
  • FIGS. 6A and 6B show in the form of schematic diagrams as a special embodiment of the rotatable reflector explained above, a segmented rotatable reflector 25 on an axis of rotation 23.
  • This reflector 25 has three sections 25.1, 25.2 and 25.3 lined up in the longitudinal direction with the same cross-sectional shape, of which the Middle part 25.2 is rotatable separately from the front and rear parts 25.1 and 25.3 (which are connected to one another in a rotationally fixed manner).
  • the "format switch-off" mentioned above can be implemented: If exposure to machining radiation of the entire length of the respective radiation sources (not shown here) is desired for a wide workpiece, all parts of the reflector 25 are sketched from the one in FIG. 6A Switch-off position turned to the operating position. However, if a workpiece (for example a printing material) with a smaller width (“smaller format”) is to be irradiated, the non-rotatable connection between the reflector parts is released and - as shown in FIG. 6B - only the middle part 25.2 is rotated into the operating position.
  • a workpiece for example a printing material
  • FIGS. 3 to 5 show a UV radiation device 700 in cross-section as a further embodiment in a representation similar to FIGS. 3 to 5 - operating position, switch-off position and maintenance position.
  • the designation with reference numbers is based on the designation of the first and second Exemplary embodiment, and deviations from the examples described above are explained below.
  • the rotatable central reflector 725 has a support element 725.1 and a plugged onto it , also approximately V-shaped reflector surface 725.2.
  • the auxiliary reflectors 717, 718, 719 and 720 each have a support element (see below for this) and a reflector surface 717.2, 718.2, 719.2 and 720.2 inserted therein.
  • auxiliary reflectors 718 and 720 are independent components with their own support element 718.1 and 720.1
  • the upper auxiliary reflectors 717 and 719 are located in the central area of the irradiation direction connected to each other by a bridge, which also forms the lower boundary of the cooling air duct 703.
  • no separate radiation absorber element is provided here, but rather the middle sections of the auxiliary reflectors and the mentioned bridge (not specifically designated) act as radiation absorbers. For this reason, these sections also have no reflector covering.
  • the central rotatable reflector 725 here has a central cooling water channel 725a and the liquid internal cooling of the auxiliary reflectors is analogous to this and is designed as in the second embodiment. Cooling air can be pressed into the housing 701 via the side cooling channels 704, 706 and then sweeps up through the gap between the upper and lower auxiliary reflectors and between the UV lamps 713, 715 and the rotatable reflector 725 in order to pass through ( openings (not shown) to finally enter the large-volume central cooling air duct 703 and finally leave the irradiation unit via the latter in the strongly heated state.
  • the optional protective screen makes sense to direct a portion of the cooling air flow from the side channels 704, 706 laterally from the lower auxiliary reflectors 718, 720 to the inside of the protective screen in order to cool it as well.
  • the adjacent side wall of the housing 701 (in FIG. 9 the left side wall 707) is folded up and then the respective lower auxiliary reflector (in FIG. 9 the left auxiliary reflector 718) is pivoted downward, so that the associated radiation source is sufficiently accessible.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Coating Apparatus (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

L'invention concerne un dispositif d'exposition aux rayons ultraviolets, à usage technique, notamment un dispositif de réticulation par rayonnement U.V., d'une machine à imprimer, d'une installation de mise en peinture ou similaire. Ledit dispositif comprend au moins une source de rayonnement qui émet un rayonnement de traitement, au moins un réflecteur régulable associé à la source de rayonnement et notamment sélectif en longueurs d'ondes, pour dévier de manière facultative le rayonnement de traitement sur un substrat à traiter ou bien à l'en éloigner, un dispositif d'entraînement relié au réflecteur à commande opératoire, ainsi qu'un boîtier logeant au moins la source de rayonnement (au moins au nombre de une) et le réflecteur (au moins au nombre de un). Il est prévu au moins une première et une seconde source de rayonnement entre lesquelles est disposé le réflecteur régulable et qui peuvent être actionnées notamment de manière séparée. Le réflecteur est formé et maintenu de sorte à dévier le rayonnement de traitement de toutes les sources de rayonnement en direction du substrat, dans une première position et à éloigner du substrat ledit rayonnement de traitement de toutes les sources de rayonnement, dans une seconde position.
EP05745703A 2004-05-04 2005-05-04 Dispositif d'exposition aux rayons ultraviolets Not-in-force EP1744882B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004021845 2004-05-04
PCT/EP2005/004888 WO2005105448A2 (fr) 2004-05-04 2005-05-04 Dispositif d'exposition aux rayons ultraviolets

Publications (2)

Publication Number Publication Date
EP1744882A2 true EP1744882A2 (fr) 2007-01-24
EP1744882B1 EP1744882B1 (fr) 2009-12-09

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Country Status (5)

Country Link
US (1) US7692170B2 (fr)
EP (1) EP1744882B1 (fr)
CN (1) CN100556694C (fr)
DE (1) DE502005008677D1 (fr)
WO (1) WO2005105448A2 (fr)

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EP1744882B1 (fr) 2009-12-09
DE502005008677D1 (de) 2010-01-21
CN101027185A (zh) 2007-08-29
US20070214986A1 (en) 2007-09-20
WO2005105448A2 (fr) 2005-11-10
CN100556694C (zh) 2009-11-04
US7692170B2 (en) 2010-04-06

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