WO2003083393A1 - Uv-radiator - Google Patents
Uv-radiator Download PDFInfo
- Publication number
- WO2003083393A1 WO2003083393A1 PCT/EP2003/002679 EP0302679W WO03083393A1 WO 2003083393 A1 WO2003083393 A1 WO 2003083393A1 EP 0302679 W EP0302679 W EP 0302679W WO 03083393 A1 WO03083393 A1 WO 03083393A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lamp
- cover body
- substrate
- reflectors
- flaps
- 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.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
Definitions
- the invention relates to a UV lamp for curing UV-sensitive substrates with an elongated UV lamp which is arranged below a channel-shaped reflector covering the lamp, dichroic reflectors being arranged symmetrically to a central plane of the beam and a cover body provided with mirrors between the lamp and the substrate is arranged such that no direct light from the lamp falls on the substrate.
- UV lamps of this type are known (US-A-40 48 490).
- the UV tube is covered by a reflector, the inner surface of which is made up of three cylindrical surfaces with different focal points.
- This channel-shaped reflector is followed by planar dichroic mirror reflectors which are inclined towards one another and serve to absorb the infrared portion of the light emitted by the lamp.
- a cover body which in cross section has approximately the shape of a kite, but all four outer sides of the cover body are cylindrical concave mirror surfaces which serve to direct the light coming from the lamp onto the dichroic mirrors to deflect falling light towards the substrate or in such a way that it can only fall onto the substrate after being reflected on one of the dichroic surfaces.
- UV lamps of this type are relatively complex to design, but have the fundamental advantage that the light falling on the substrate contains almost no infrared component. This Infrared is absorbed by the dichroic mirrors and the resulting heat is dissipated by water cooling.
- the invention has for its object to make a UV lamp of this type much simpler in structure, but without losing the functional advantages.
- the invention consists in that the dichroic reflectors cover the entire area around the lamp and the cover body and the cover body is a cylinder whose diameter is the boundary rays between the lamp and the ends of the dichroic ends facing the substrate Reflectors affected.
- This configuration allows a simpler structure, and the relatively complicated cover body of the known type can also be replaced by a simple reflective cylinder.
- This configuration also makes it possible to adapt the shape of the dichroic reflectors to the requirements and to attach them to one-piece flaps which are arranged pivotably about axes above the lamp and are designed as shutters.
- the reflectors also take on the task of completely darkening the substrate from UV light if this is necessary.
- the cylindrical cover body and the flaps can be provided with water cooling in a manner known per se, so that the heat generated by the absorbed infrared radiation is dissipated.
- Fig. 1 shows a UV lamp according to the invention in the operating state and Fig. 2 shows the UV lamp of Fig. 1 in the inoperative position.
- FIG. 1 shows that within a housing 1 which is open at the bottom and which can be designed as a slide-in cassette, two curved flaps 2 are arranged, each pivotable about the axes 3 and 4, which are made of a highly heat-conducting material, for example aluminum and are provided with flow channels 5 through which a coolant, for example water, flows in a manner not shown.
- the flaps 2 are formed symmetrically to a central plane 6 and are provided on their mutually facing inner sides with surfaces 7 which are provided with a dichroic mirror layer and are shaped accordingly in order to effect the necessary deflection of the rays.
- an elongated cylindrical UV lamp 9 is arranged in the area of the center plane 6 and below it, likewise on the center plane 6, a cylindrical cover body 10, the diameter and the distance of which from the UV lamp 9 is selected such that that the boundary rays 11 between the longitudinal axis of the lamp 9 and the open ends 2a of the flaps 2 affect the circumference of the cylindrical cover body 10. As can be readily seen, this means that no direct light from the lamp 9 can fall onto the substrate to be treated, which is located on the surface 12 below the housing 1 and is moved there under the UV lamp.
- the cover body 10 is designed as a tube which is provided on the outside with four mirror parts 13, each corresponding to a quarter of a cylinder, and likewise through which coolant, for example water, flows.
- FIG. 2 also shows that the pivoting movement of the flaps 2 about their axes 3 and 4 takes place in each case by drive elements 14, which are moved in the direction of the arrows 15 and thereby cause the pivoting movement of the flaps 2, which can be closed completely .
- the flaps 2 with their reflectors 8 arranged on the inside thus also form the closing elements (shutters) for the UV lamp in order to bring it into the non-operating position.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
Beschreibung UV-Strahler Description UV lamp
Die Erfindung betrifft einen UV-Strahler zum Aushärten UV-empfindlicher Substrate mit einer länglichen UV-Lampe, die unterhalb eines die Lampe überdeckenden rinnenförmigen Reflektors angeordnet ist, wobei dichroitische Reflektoren symmetrisch zu einer Mittelebene des Strahles angeordnet sind und ein mit Spiegeln versehener Abdeckkörper zwischen Lampe und Substrat so angeordnet ist, dass kein direktes Licht von der Lampe auf das Substrat fällt.The invention relates to a UV lamp for curing UV-sensitive substrates with an elongated UV lamp which is arranged below a channel-shaped reflector covering the lamp, dichroic reflectors being arranged symmetrically to a central plane of the beam and a cover body provided with mirrors between the lamp and the substrate is arranged such that no direct light from the lamp falls on the substrate.
UV-Strahler dieser Art sind bekannt (US-A-40 48 490). Bei den bekann- ten Bauarten ist die UV-Röhre von einem Reflektor überdeckt, dessen Innenfläche aus drei zylindrischen Flächen mit unterschiedlich gelegenen Brennpunkten aufgebaut ist. An diesen rinnenförmigen Reflektor schließen sich nach unten zum Substrat hin ebene dichroitische Spiegelreflektoren an, die gegeneinander geneigt sind und dazu dienen, den Infrarotanteil des von der Lampe abgegebenen Lichtes zu absorbieren. Zwischen diesen symmetrisch zu einer Mittelebene angeordneten dichroitischen Spiegeln ist ein Abdeckkörper angeordnet, der im Querschnitt in etwa die Form eines Flugdrachens aufweist, wobei jedoch alle vier Außenseiten des Abdeckkörpers zylindrische konkave Spiegelflächen sind, die dazu dienen, das von der Lampe kommende auf die dichroitischen Spiegel fallende Licht in Richtung zum Substrat oder so umzulenken, dass es erst nach der Spiegelung an einer der dichroitischen Flächen auf das Substrat fallen kann.UV lamps of this type are known (US-A-40 48 490). In the known types, the UV tube is covered by a reflector, the inner surface of which is made up of three cylindrical surfaces with different focal points. This channel-shaped reflector is followed by planar dichroic mirror reflectors which are inclined towards one another and serve to absorb the infrared portion of the light emitted by the lamp. Between these dichroic mirrors, which are arranged symmetrically to a central plane, there is a cover body which in cross section has approximately the shape of a kite, but all four outer sides of the cover body are cylindrical concave mirror surfaces which serve to direct the light coming from the lamp onto the dichroic mirrors to deflect falling light towards the substrate or in such a way that it can only fall onto the substrate after being reflected on one of the dichroic surfaces.
UV-Strahler dieser Art sind verhältnismäßig aufwendig in ihrer Gestaltung, weisen aber den grundsätzlichen Vorteil auf, dass das auf das Substrat fallende Licht nahezu keinen Infrarotanteil mehr enthält. Dieser Infrarotanteil wird von den dichroitischen Spiegeln aufgenommen und die dadurch entstehende Wärme durch eine Wasserkühlung abgeführt.UV lamps of this type are relatively complex to design, but have the fundamental advantage that the light falling on the substrate contains almost no infrared component. This Infrared is absorbed by the dichroic mirrors and the resulting heat is dissipated by water cooling.
Der Erfindung liegt die Aufgabe zugrunde, einen UV-Strahler dieser Art im Aufbau wesentlich einfacher zu gestalten, ohne jedoch die Funktionsvorteile zu verlieren.The invention has for its object to make a UV lamp of this type much simpler in structure, but without losing the functional advantages.
Die Erfindung besteht bei einem UV-Strahler der eingangs erwähnten Art darin, dass die dichroitischen Reflektoren den gesamten Bereich um die Lampe und den Abdeckkörper herum abdecken und der Abdeckkörper ein Zylinder ist, dessen Durchmesser die Grenzstrahlen zwischen Lampe und den dem Substrat zugewandten Enden der dichroitischen Reflektoren tangiert.In the case of a UV lamp of the type mentioned at the outset, the invention consists in that the dichroic reflectors cover the entire area around the lamp and the cover body and the cover body is a cylinder whose diameter is the boundary rays between the lamp and the ends of the dichroic ends facing the substrate Reflectors affected.
Diese Ausgestaltung erlaubt eine einfacheren Aufbau, wobei auch der relativ kompliziert aufgebaute Abdeckkörper der bekannten Bauart durch einen einfachen reflektierenden Zylinder ersetzt werden kann. Diese Ausgestaltung erlaubt es auch, die dichroitischen Reflektoren in ihrer Form den Erfordernissen anzupassen und sie jeweils an einteilig ausge- bildeten Klappen anzubringen, die schwenkbar um oberhalb der Lampe liegende Achsen angeordnet und als Shutter ausgebildet sind. Die Reflektoren übernehmen damit auch die Aufgabe, das Substrat vollkommen vom UV-Licht abzudunkeln, wenn dies erforderlich ist. Dabei kann der zylindrische Abdeckkörper und die Klappen in an sich bekannter Weise mit einer Wasserkühlung versehen sein, so dass die durch die absorbierte Infrarotstrahlung entstehende Wärme abgeführt wird.This configuration allows a simpler structure, and the relatively complicated cover body of the known type can also be replaced by a simple reflective cylinder. This configuration also makes it possible to adapt the shape of the dichroic reflectors to the requirements and to attach them to one-piece flaps which are arranged pivotably about axes above the lamp and are designed as shutters. The reflectors also take on the task of completely darkening the substrate from UV light if this is necessary. The cylindrical cover body and the flaps can be provided with water cooling in a manner known per se, so that the heat generated by the absorbed infrared radiation is dissipated.
Die Erfindung ist anhand eines Ausführungsbeispiels in der Zeichnung dargestellt und wird im folgenden erläutert. Es zeigen:The invention is illustrated in the drawing using an exemplary embodiment and is explained below. Show it:
Fig. 1 einen UV-Strahler nach der Erfindung im Betriebszustand und Fig. 2 den UV-Strahler der Fig. 1 in der Außerbetriebsstellung.Fig. 1 shows a UV lamp according to the invention in the operating state and Fig. 2 shows the UV lamp of Fig. 1 in the inoperative position.
Die Fig. 1 zeigt, dass innerhalb eines nach unten offenen Gehäuses 1 , das als Einschubkassette ausgebildet sein kann, zwei gebogene Klap- pen 2 jeweils um die Achsen 3 bzw. 4 schwenkbar angeordnet sind, die aus einem gut wärmeleitenden Material, beispielsweise Aluminium hergestellt und mit Durchlaufkanälen 5 versehen sind, die in nicht näher dargestellter Weise von einem Kühlmittel, beispielsweise von Wasser, durchströmt sind. Die Klappen 2 sind symmetrisch zu einer Mittelebene 6 ausgebildet und auf ihren einander zugewandten Innenseiten mit Flächen 7 versehen, die mit einer dichroitischen Spiegelschicht versehen und entsprechend geformt sind, um die erforderliche Umlenkung der Strahlen zu bewirken.FIG. 1 shows that within a housing 1 which is open at the bottom and which can be designed as a slide-in cassette, two curved flaps 2 are arranged, each pivotable about the axes 3 and 4, which are made of a highly heat-conducting material, for example aluminum and are provided with flow channels 5 through which a coolant, for example water, flows in a manner not shown. The flaps 2 are formed symmetrically to a central plane 6 and are provided on their mutually facing inner sides with surfaces 7 which are provided with a dichroic mirror layer and are shaped accordingly in order to effect the necessary deflection of the rays.
In den von den dichroitischen Spiegeln 8 gebildeten Innenraum ist im Bereich der Mittelebene 6 eine längliche zylindrische UV-Lampe 9 und unterhalb derselben ebenfalls auf der Mittelebene 6 ein zylindrischer Abdeckkörper 10 angeordnet, dessen Durchmesser und dessen Abstand zur UV-Lampe 9 so gewählt ist, dass die Grenzstrahlen 11 zwi- sehen der Längssachse der Lampe 9 und den geöffneten Enden 2a der Klappen 2 den Umfang des zylindrischen Abdeckkörpers 10 tangieren. Wie ohne weiteres ersichtlich ist, kann dadurch kein direktes Licht von der Lampe 9 aus auf das zu behandelndes Substrat fallen, das sich auf der Oberfläche 12 unterhalb des Gehäuses 1 befindet und dort unter- halb der UV-Lampe hindurch bewegt wird.In the interior formed by the dichroic mirrors 8, an elongated cylindrical UV lamp 9 is arranged in the area of the center plane 6 and below it, likewise on the center plane 6, a cylindrical cover body 10, the diameter and the distance of which from the UV lamp 9 is selected such that that the boundary rays 11 between the longitudinal axis of the lamp 9 and the open ends 2a of the flaps 2 affect the circumference of the cylindrical cover body 10. As can be readily seen, this means that no direct light from the lamp 9 can fall onto the substrate to be treated, which is located on the surface 12 below the housing 1 and is moved there under the UV lamp.
Wie anhand des in Fig. 1 eingezeichneten Strahlenganges auch erkennbar ist, wird alles Licht, das von der Lampe 9 ausgeht, von den Reflektoren 8 reflektiert und dann auf die Fläche 12 geleitet oder zunächst auf die Außenfläche des Abdeckkörpers 10 geleitet und, da dieser mit einer spiegelnden Oberfläche versehen ist, von dieser aus zur Oberfläche 12 geleitet. Aus den Fig. 1 und 2 ist dabei zu erkennen, dass der Abdeckkörper 10 als ein Rohr ausgebildet ist, das außen mit vier jeweils dem Viertel eines Zylinders entsprechenden Spiegelteilen 13 versehen ist und ebenfalls vom Kühlmittel, beispielsweise Wasser, durchströmt wird.As can also be seen on the basis of the beam path shown in FIG. 1, all light emanating from the lamp 9 is reflected by the reflectors 8 and then directed onto the surface 12 or first directed onto the outer surface of the cover body 10 and, since this also with a reflective surface is provided, from this to surface 12. It can be seen from FIGS. 1 and 2 that the cover body 10 is designed as a tube which is provided on the outside with four mirror parts 13, each corresponding to a quarter of a cylinder, and likewise through which coolant, for example water, flows.
Die Fig. 2 lässt auch erkennen, dass die Schwenkbewegung der Klappen 2 um ihre Achsen 3 und 4 jeweils durch Antriebselemente 14 erfolgt, die im Sinn der Pfeile 15 bewegt werden und dadurch die Schwenkbe- wegung der Klappen 2 bewirken, die sich vollkommen schließen lassen. Die Klappen 2 mit ihren innen angeordneten Reflektoren 8 bilden so auch die Schließelemente (Shutter) für den UV-Strahler, um diesen in die Außerbetriebsstellung zu bringen. FIG. 2 also shows that the pivoting movement of the flaps 2 about their axes 3 and 4 takes place in each case by drive elements 14, which are moved in the direction of the arrows 15 and thereby cause the pivoting movement of the flaps 2, which can be closed completely , The flaps 2 with their reflectors 8 arranged on the inside thus also form the closing elements (shutters) for the UV lamp in order to bring it into the non-operating position.
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2003218763A AU2003218763A1 (en) | 2002-04-03 | 2003-03-14 | Uv-radiator |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10215024.9 | 2002-04-03 | ||
| DE2002115024 DE10215024A1 (en) | 2002-04-03 | 2002-04-03 | UV lamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2003083393A1 true WO2003083393A1 (en) | 2003-10-09 |
Family
ID=28458592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2003/002679 Ceased WO2003083393A1 (en) | 2002-04-03 | 2003-03-14 | Uv-radiator |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU2003218763A1 (en) |
| DE (1) | DE10215024A1 (en) |
| WO (1) | WO2003083393A1 (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4048490A (en) | 1976-06-11 | 1977-09-13 | Union Carbide Corporation | Apparatus for delivering relatively cold UV to a substrate |
| AU490156B2 (en) * | 1974-02-11 | 1978-01-23 | Hop Pty Ltd | Accompanied by a provisional specification |
| US4563589A (en) * | 1984-01-09 | 1986-01-07 | Scheffer Herbert D | Ultraviolet curing lamp device |
| DE4301718A1 (en) * | 1993-01-22 | 1994-07-28 | Jochen Dipl Ing Hagedorn | UV irradiation equipment for conveyor-borne objects |
| US5722761A (en) * | 1993-12-01 | 1998-03-03 | Nordson Corporation | Lamp assembly with filter producing variable proportions of ultraviolet and infrared radiation |
| DE19651977A1 (en) * | 1996-12-13 | 1998-06-18 | Michael Bisges | UV light radiating apparatus for hardening UV-curable coatings on flat objects, especially information-carrying discs |
| DE19810455A1 (en) * | 1998-03-11 | 1999-09-23 | Michael Bisges | Cold UV curing apparatus especially for curing lacquer layers or printing ink on heat sensitive substrates |
| US6118130A (en) * | 1998-11-18 | 2000-09-12 | Fusion Uv Systems, Inc. | Extendable focal length lamp |
| DE10109061A1 (en) * | 2000-03-08 | 2001-10-04 | Nordson Corp | Monitoring method for lamp unit used in printing or surface coating industry uses measurement of reflected radiation when emitted radiation is blocked from reaching substrate to be dried |
| US20020118541A1 (en) * | 2001-02-27 | 2002-08-29 | Nordson Corporation | Lamp assembly |
| US20030039711A1 (en) * | 2001-06-08 | 2003-02-27 | Blacker Allen P. | UV curing system for heat sensitive substances |
-
2002
- 2002-04-03 DE DE2002115024 patent/DE10215024A1/en not_active Ceased
-
2003
- 2003-03-14 WO PCT/EP2003/002679 patent/WO2003083393A1/en not_active Ceased
- 2003-03-14 AU AU2003218763A patent/AU2003218763A1/en not_active Abandoned
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU490156B2 (en) * | 1974-02-11 | 1978-01-23 | Hop Pty Ltd | Accompanied by a provisional specification |
| US4048490A (en) | 1976-06-11 | 1977-09-13 | Union Carbide Corporation | Apparatus for delivering relatively cold UV to a substrate |
| US4563589A (en) * | 1984-01-09 | 1986-01-07 | Scheffer Herbert D | Ultraviolet curing lamp device |
| DE4301718A1 (en) * | 1993-01-22 | 1994-07-28 | Jochen Dipl Ing Hagedorn | UV irradiation equipment for conveyor-borne objects |
| US5722761A (en) * | 1993-12-01 | 1998-03-03 | Nordson Corporation | Lamp assembly with filter producing variable proportions of ultraviolet and infrared radiation |
| DE19651977A1 (en) * | 1996-12-13 | 1998-06-18 | Michael Bisges | UV light radiating apparatus for hardening UV-curable coatings on flat objects, especially information-carrying discs |
| DE19810455A1 (en) * | 1998-03-11 | 1999-09-23 | Michael Bisges | Cold UV curing apparatus especially for curing lacquer layers or printing ink on heat sensitive substrates |
| US6118130A (en) * | 1998-11-18 | 2000-09-12 | Fusion Uv Systems, Inc. | Extendable focal length lamp |
| DE10109061A1 (en) * | 2000-03-08 | 2001-10-04 | Nordson Corp | Monitoring method for lamp unit used in printing or surface coating industry uses measurement of reflected radiation when emitted radiation is blocked from reaching substrate to be dried |
| US20020118541A1 (en) * | 2001-02-27 | 2002-08-29 | Nordson Corporation | Lamp assembly |
| US20030039711A1 (en) * | 2001-06-08 | 2003-02-27 | Blacker Allen P. | UV curing system for heat sensitive substances |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10215024A1 (en) | 2003-10-30 |
| AU2003218763A1 (en) | 2003-10-13 |
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