EP2284006A2 - Source de lumière pour séchage à UV - Google Patents

Source de lumière pour séchage à UV Download PDF

Info

Publication number
EP2284006A2
EP2284006A2 EP10005831A EP10005831A EP2284006A2 EP 2284006 A2 EP2284006 A2 EP 2284006A2 EP 10005831 A EP10005831 A EP 10005831A EP 10005831 A EP10005831 A EP 10005831A EP 2284006 A2 EP2284006 A2 EP 2284006A2
Authority
EP
European Patent Office
Prior art keywords
light source
light
dryer
individual
led
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.)
Withdrawn
Application number
EP10005831A
Other languages
German (de)
English (en)
Inventor
Reinhard Jenny
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.)
Volpi AG
Original Assignee
Volpi 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 Volpi AG filed Critical Volpi AG
Publication of EP2284006A2 publication Critical patent/EP2284006A2/fr
Withdrawn legal-status Critical Current

Links

Images

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
    • B41F23/044—Drying sheets, e.g. between two printing stations
    • B41F23/0443—Drying sheets, e.g. between two printing stations after printing
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/008—Combination of two or more successive refractors along an optical axis
    • 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 present invention relates to a dryer light source according to the preamble of claim 1.
  • Such light sources find their preferred use in multi-color printing machines, as shown in the DE-44'42'557 (Heidelberger) are described. These multicolor printing machines, as they are also from the DE-102'25'198 are known, transport and transfer wet partial images, which are fed to a drying station after a color transfer process. These drying stations, depending on the nature of the ink, a hot air blower, an electron emitter according DE-10'2007'048'282 or have a UV dryer with UV light-emitting diode arrays, such as, for example, from the DE-10'2007'028'403 is known.
  • UV-drying printing inks or coatings consist of flowable substances and include, for example, monomers, oligomers and / or photoinitiators which crosslink to form a dry film under the action of high-energy UV radiation. These substances are rapidly gaining in importance today because they can also be used for printing on less absorbent materials.
  • the cure rate i. the degree of curing is, for example, dependent on the type and performance of the UV lamps, the machine speed, the materials to be printed and / or the color composition.
  • the UV curing process can be used in almost all areas of the printing industry, especially where rapid drying of the printing inks and / or coatings is desired for rapid further processing.
  • the process is therefore not only suitable for the accelerated printing of paper and / or cardboard for the production of glossy brochures or packaging, but also for the printing of plastic material and metal stamping.
  • Suitable color hardening devices comprise a dryer light source, also referred to below as a multiple wavelength light source, as described, for example, in DE-10'2004'015'700.
  • the light-emitting diodes (LEDs) used in this dryer light source are arranged in rows and not only have different wavelengths but can also be switched on separately in order, if appropriate, to use individual ones of the wavelengths separately.
  • Such built-up LED dryer light sources are temperature sensitive and make because of their design (close to each other high-power LEDs) consuming coolants required.
  • these dryer light sources must be mounted very close to the object to be illuminated. This leads to extremely tight space conditions, which greatly limits the variability for the construction of the dryer light source and thus the possible applications and use thereof in different printing presses.
  • no complex resp. failure-prone cooling means may be required and space constraints should allow for simplified tuning to the particular use of the dryer light source in different printing presses.
  • this object is achieved by a dryer light source with the features of claim 1 and in particular by a multiple-wavelength total light source with an optical arrangement for superimposing different radiation beams.
  • this multiple wavelength total light source comprises at least a first individual light source and a second individual light source, the radiated light of which each having a dominant wavelength ( ⁇ 1 , or ⁇ 2 ) and optical means are provided for superimposing the radiated light of these individual light sources.
  • a preferred embodiment of the dryer light source according to the invention is characterized in that the optical means comprise at least one reflector and / or at least one beam splitter, the reflector being arranged and configured such that at least the emitted light ( ⁇ 1 ) reflects the first individual light source and with the radiated light ( ⁇ 2 ) of the second individual light source superimposed incident on the object field to be illuminated, and wherein the beam splitter is arranged and configured such that the emitted light ( ⁇ 1 ) of the first individual light source is reflected onto the object field to be illuminated and the radiated light ( ⁇ 2 ) of the second single light source can pass unhindered to overlap with the emitted light ( ⁇ 1 ) of the first single light source.
  • high-power LEDs (LS1, LS2, LS3) with large-aperture radiation, halogen lamps or gas discharge lamps are particularly suitable. It proves to be advantageous if the individual individual light sources (LS1, LS2, LS3) are provided with a condenser optics (CO1, CO2, CO3) and / or a collector is provided between the beam splitters and the object to be illuminated.
  • CO1, CO2, CO3 condenser optics
  • an optical system for homogenizing the total light impinging on the object field to be illuminated is provided between the beam splitters and the object field to be illuminated.
  • the optical means for superimposing the emitted light comprise cylindrical and / or spherical optical elements.
  • the dryer light source according to the invention is characterized in that at least one of the individual Single light sources comprises a lighting arrangement with an LED array of mxn LED's.
  • the LED array may have a plurality of identical or different LEDs and / or the lighting arrangement may have a plurality of LED arrays.
  • a UV-dryer light source (1) is known from the published patent application DE-10'2004'015'700 A1.
  • the individual LEDs (2) are arranged in a housing such that their beams are directed together to an object zone. Due to the short distances to the object zone and the unwanted heat generation in the vicinity of this object zone, the LEDs are surrounded by cooling air.
  • FIG. 2 shown arrangement according to the present invention comprises individual light sources (3, 3 ', 3 "), each having a dominant wavelength ⁇ 1 , ⁇ 2 , ⁇ 3 ,
  • the individual light sources are arranged sequentially along a line.
  • this arrangement comprises an associated condenser optic (6, 6 ', 6 "), a first (4) and second (4') beam splitter, an optic for homogenizing (7) the merged light beam and a collector (8).
  • the first beam splitter (4) is highly reflective for light having a first wavelength ⁇ 1 and highly transmissive to light having a second wavelength ⁇ 2 and light having a third wavelength ⁇ 3
  • the beam splitter (4 ') is highly reflective for light a second wavelength
  • the collector is designed ⁇ 2 and highly transmissive for light having a third wavelength ⁇ .
  • the optics for homogenization (7) of the superimposed beam can be realized with a microlens array, with a spherical lens or an aspherical lens. ( 8) may comprise an aspherical, spherical or anamorphic lens.
  • the arrangement according to the invention can have both a cylindrical optic (for line lights) and a spherical optic (for punctiform or planar light sources).
  • the possible wavelengths range from the UV to the IR of the electromagnetic spectrum.
  • the superposition of light of multiple wavelengths with limited bandwidth is possible.
  • the bandwidths can be separated from each other or only partially overlapping.
  • the individual light sources typically include high power LEDs with large aperture radiation, but may also include classic illuminants, e.g. Halogen lamps or gas discharge lamps.
  • Fig. 3, 4 and 5 show suitable configurations for the condenser optics (6. 6 ', 6 ")
  • Fig. 3 a spherical lens configuration (9, 10)
  • Fig. 4 a configuration with a light guide element (11) with lens (12)
  • Fig. 5 a configuration with specially shaped optics (13).
  • This shaped optical system (13) generates a plurality of differently guided radiation beams from the same individual light source.
  • the condenser optics (6, 6 ', 6 ") can be rotationally symmetrical or linearly expanded
  • the linear expansion can be achieved by a sequential arrangement of individual optical elements, as in FIGS FIGS. 3, 4 and 5 shown to be realized.
  • the condenser optics (6, 6 ', 6 ") can also be dispensed optics for homogenization (7) of the superimposed light beam and a collector (8).
  • the individual light sources 3, 3 ', 3 can also comprise LED arrays with nxn or mxn LED elements (chips) is suitable for use with small LED elements as well as for use with larger LED arrays
  • the LED elements or LED arrays can be arranged sequentially along a line.
  • Fig. 6 5 illustrates that when using LED arrays, a uniform multi-wavelength LED array 14 can be created by distributing LED chips 20, 21, 22 of different wavelengths in an array. Here the red-luminescent, green-luminescent and blue-luminescent LED chips are evenly distributed.
  • Fig. 8 shows a linear light assembly (25) for line lights, in which the individual multi-wavelength LEDs resp. Multi-wavelength LED arrays (16) are arranged sequentially along a line.
  • linear light assemblies (25) are provided with single wavelength LED arrays (17) which, as in FIG Fig. 9 shown, only have LEDs with the same wavelength spectrum, can also be realized.
  • the two in Fig. 10 A) and b) light assemblies (25) represent field arrays of multi-wavelength LED arrays (16), respectively. Single-wavelength LED arrays.
  • FIG Fig. 11 Another embodiment is shown.
  • the LED arrays (16) form a lighting arrangement in the form of a cross-shaped field.
  • Another optical arrangement for the inventive dryer light source has in the beam path between the LEDs, resp. LED arrays and the object field (5) a reflector (18).
  • This reflector (18) may have an elliptical cross-section or be shaped as desired.
  • the individual LED arrays are mounted on a heat dissipated carrier element with or without a cooling channel (19).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Drying Of Solid Materials (AREA)
EP10005831A 2009-06-09 2010-06-05 Source de lumière pour séchage à UV Withdrawn EP2284006A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00910/09A CH701249A2 (de) 2009-06-09 2009-06-09 Trockner-Lichtquelle.

Publications (1)

Publication Number Publication Date
EP2284006A2 true EP2284006A2 (fr) 2011-02-16

Family

ID=42697302

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10005831A Withdrawn EP2284006A2 (fr) 2009-06-09 2010-06-05 Source de lumière pour séchage à UV

Country Status (3)

Country Link
US (1) US9440429B2 (fr)
EP (1) EP2284006A2 (fr)
CH (1) CH701249A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013164051A1 (fr) * 2012-05-02 2013-11-07 Heraeus Noblelight Gmbh Appareil d'éclairage à réflecteur
CN112386015A (zh) * 2020-10-26 2021-02-23 宁波方太厨具有限公司 一种消毒柜

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012008639A1 (de) * 2012-05-02 2013-11-07 Heraeus Noblelight Gmbh Verfahren zur Herstellung eines optischen Moduls mit einer Silikonoptik
US9406653B2 (en) * 2013-02-27 2016-08-02 Applied Materials, Inc. Integrated solution for solid state light sources in a process chamber
CN104908417B (zh) * 2015-06-01 2017-12-12 苍南县龙港新峰网印机械有限公司 一种印刷用uv led固化灯
JP6575201B2 (ja) * 2015-07-29 2019-09-18 岩崎電気株式会社 照射ユニット、及び、光照射装置
JP6772585B2 (ja) * 2016-06-28 2020-10-21 岩崎電気株式会社 照射ユニット、及び、光照射装置
US10828505B2 (en) 2017-02-17 2020-11-10 Joovv, Inc. Therapeutic light source and hanging apparatus
US11458328B2 (en) 2018-10-22 2022-10-04 Joovv, Inc. Photobiomodulation therapy device accessories
US10478635B1 (en) 2018-10-22 2019-11-19 Joovv, Inc. Photobiomodulation therapy systems and methods
US11033752B2 (en) 2018-10-22 2021-06-15 Joovv, Inc. Photobiomodulation therapy systems and methods
US11207543B2 (en) 2018-10-22 2021-12-28 Joovv, Inc. Photobiomodulation therapy device accessories
USD877919S1 (en) 2019-01-08 2020-03-10 Joovv, Inc. Photobiomodulation system
DE102022123022A1 (de) * 2022-09-09 2024-03-14 Krones Aktiengesellschaft Direktdruckvorrichtung mit UV-Leuchtvorrichtung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4442557A1 (de) 1994-11-30 1996-06-05 Heidelberger Druckmasch Ag Ausleger einer Bogendruckmaschine
DE10225198A1 (de) 2002-06-06 2004-01-22 Polytype S.A. Verfahren und Vorrichtung zum Drucken eines mehrfarbigen Bildes
DE102004015700A1 (de) 2004-03-29 2005-11-03 Platsch Gmbh & Co.Kg Flächige UV-Lichtquelle
DE102007028403A1 (de) 2007-06-17 2008-12-24 Platsch Gmbh & Co.Kg UV-Trockner
DE102007048282A1 (de) 2007-10-08 2009-04-09 Wifag Maschinenfabrik Ag Rotationsdruckmaschine mit Elektronenstrahltrockner

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7202466B2 (en) * 2003-08-25 2007-04-10 Cadent Ltd. Apparatus and method for providing high intensity non-coherent light and for speckle reduction
JP4121477B2 (ja) * 2004-03-31 2008-07-23 三洋電機株式会社 照明装置及び投写型映像表示装置
US7244031B2 (en) * 2004-07-08 2007-07-17 Hewlett-Packard Development Company, L.P. Light source arrangement
US7654715B1 (en) * 2007-08-09 2010-02-02 Kla-Tencor Technologies Corporation System and method for illuminating a specimen with uniform angular and spatial distribution
US20090288340A1 (en) * 2008-05-23 2009-11-26 Ryan Hess LED Grow Light Method and Apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4442557A1 (de) 1994-11-30 1996-06-05 Heidelberger Druckmasch Ag Ausleger einer Bogendruckmaschine
DE10225198A1 (de) 2002-06-06 2004-01-22 Polytype S.A. Verfahren und Vorrichtung zum Drucken eines mehrfarbigen Bildes
DE102004015700A1 (de) 2004-03-29 2005-11-03 Platsch Gmbh & Co.Kg Flächige UV-Lichtquelle
DE102007028403A1 (de) 2007-06-17 2008-12-24 Platsch Gmbh & Co.Kg UV-Trockner
DE102007048282A1 (de) 2007-10-08 2009-04-09 Wifag Maschinenfabrik Ag Rotationsdruckmaschine mit Elektronenstrahltrockner

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013164051A1 (fr) * 2012-05-02 2013-11-07 Heraeus Noblelight Gmbh Appareil d'éclairage à réflecteur
DE102012008641A1 (de) * 2012-05-02 2013-11-07 Heraeus Noblelight Gmbh Leuchte mit Reflektor
US9266360B2 (en) 2012-05-02 2016-02-23 Heraeus Noblelight Gmbh Lighting unit with reflector
CN112386015A (zh) * 2020-10-26 2021-02-23 宁波方太厨具有限公司 一种消毒柜

Also Published As

Publication number Publication date
CH701249A2 (de) 2010-12-15
US20100309659A1 (en) 2010-12-09
US9440429B2 (en) 2016-09-13

Similar Documents

Publication Publication Date Title
EP2284006A2 (fr) Source de lumière pour séchage à UV
EP3330597B1 (fr) Optique primaire, optique secondaire, module, dispositif, phares de véhicule automobile et système de phares
EP3396713B1 (fr) Dispositif d'éclairage à led et à lentille cylindrique
EP1902308B1 (fr) Appareil pour inspecter une surface
DE19733496B4 (de) Lampenaufbau
DE102007027615B4 (de) Vorrichtung zur Einkopplung von Licht in einen faseroptischen Lichtleiter
DE102013226639A1 (de) Erzeugen eines Lichtabstrahlmusters in einem Fernfeld
WO2005093858A2 (fr) Source lumineuse a uv plate
DE102012220570A1 (de) Optisches element und projektionsanordnung mit einem solchen
DE102014208660A1 (de) Erzeugen eines Lichtabstrahlmusters in einem Fernfeld
DE102016201606A1 (de) Beleuchtungsvorrichtung zur emission von beleuchtungslicht
DE102015106312A1 (de) Beleuchtungsvorrichtung mit Halbleiter-Primärlichtquellen und mindestens einem Leuchtstoffkörper
DE102015215335A1 (de) Vorrichtung und Verfahren zum Auftragen und Bestrahlen von Tinten
EP3317580B1 (fr) Module d'éclairage pour un phare de véhicule
EP1403695A1 (fr) Dispositif d'exposition d'un original comprenant une pluralité de sources lumineuses ponctuelles homogenisées et superposées
DE102014213368A1 (de) Lichtmodul für Beleuchtungseinrichtung
DE102009017954A1 (de) UV-Bestrahlungsvorrichtung
DE102017213103A1 (de) Beleuchtungssystem und scheinwerfer
EP2844474A1 (fr) Appareil d'éclairage à réflecteur
DE102017214399A1 (de) Beleuchtungssystem und scheinwerfer
DE102020107926A1 (de) Mikrolinsenprojektionsmodul mit an Ausleuchtdivergenz angepasster Bklende
DE112017002035T5 (de) Verfahren und System für die Emission von und das Härten mittels Strahlung mit geringer Breite
WO1991005978A1 (fr) Secheur, notamment secheur auxiliaire
WO2019149928A1 (fr) Dispositif d'irradiation d'objets
EP1403077A1 (fr) Dispositif à l'éclairage linéaire

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME RS

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20180103