EP2228876A1 - Vorrichtung zur Temperierung eines Lasermoduls in einen Druckplattenbelichter - Google Patents

Vorrichtung zur Temperierung eines Lasermoduls in einen Druckplattenbelichter Download PDF

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Publication number
EP2228876A1
EP2228876A1 EP10151333A EP10151333A EP2228876A1 EP 2228876 A1 EP2228876 A1 EP 2228876A1 EP 10151333 A EP10151333 A EP 10151333A EP 10151333 A EP10151333 A EP 10151333A EP 2228876 A1 EP2228876 A1 EP 2228876A1
Authority
EP
European Patent Office
Prior art keywords
laser module
peltier element
heat
laser
peltier
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Withdrawn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
EP10151333A
Other languages
German (de)
English (en)
French (fr)
Inventor
Jörg-Achim FISCHER
Michael Schoepke
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen 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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP2228876A1 publication Critical patent/EP2228876A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
    • B41J2/447—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources
    • B41J2/45—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources using light-emitting diode [LED] or laser arrays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
    • B41J2/447—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources
    • B41J2/455—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources using laser arrays, the laser array being smaller than the medium to be recorded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
    • B41J2/47—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using the combination of scanning and modulation of light
    • B41J2/471—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using the combination of scanning and modulation of light using dot sequential main scanning by means of a light deflector, e.g. a rotating polygonal mirror
    • B41J2/473—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using the combination of scanning and modulation of light using dot sequential main scanning by means of a light deflector, e.g. a rotating polygonal mirror using multiple light beams, wavelengths or colours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/377—Cooling or ventilating arrangements

Definitions

  • the present invention relates to a method and a device according to the preambles of claims 1 and 12.
  • print templates for printed pages are generated. These print templates already contain all the elements to be printed, such as text graphics and images. For color printing, a separate artwork is created for each ink. For four-color printing, these are the printing colors cyan magenta yellow and black (CMYK). But it can also be any additional or other printing inks.
  • CMYK cyan magenta yellow and black
  • the printed originals separated by printing inks are also called color separations.
  • electronic printing data z. B. present in the form of rasterized bitmaps generated on the basis then the printing plates, such as. B. printing plates are imaged. In this way, a printing plate is imaged for each color separation. These printing plates are then clamped in printing presses and then transfer the respective underlying printing ink to the paper.
  • the print data describes different screen dots on the printing plate.
  • the grid width describes the spacing of individual grid points, while the grid angle represents a measure of the different angles that occupy the grid of the different color separations to each other.
  • One Raster point is formed by several pixels. These pixels are the smallest elements that can be imaged by an imagesetter on the printing plate. Depending on the tonal value of the corresponding point of the artwork, more or less pixels of a halftone dot are imaged. The halftone dot then appears lighter or darker.
  • the imaging of the printing plates takes place pixelwise by means of a laser beam emitted by laser diodes.
  • the illustration itself takes place in an imagesetter. This can be an external drum imagesetter, internal drum imagesetter or a flatbed platesetter.
  • a corresponding platesetter comprises for imaging the printing plates an exposure head, such as. B. a laser module comprising different laser diodes. Each individual laser diode of the laser module then emits a laser beam in the direction of the printing plate as a function of the print data. By appropriate optical elements of this laser beam is then focused on the surface of the printing plate.
  • the printing plate is clamped on the exposure drum of the imagesetter.
  • One or more laser modules are located on one or more exposure head carriers which are moved axially parallel to the drum by a feed screw.
  • the feed spindle is driven by a stepper motor.
  • the corresponding laser module is moved along the printing plate and exposed, depending on the printing data, the surface of the printing plate with one or more image lines.
  • This imaging takes place in the form of a helix.
  • the laser module may have one or more generally for this exposure Laser diodes z.
  • B. 64 include.
  • the laser module additionally has optical elements for focusing the laser beams on the printing plate surface.
  • the laser diodes of the laser modules are generally semiconductor devices, these are excited to emit laser beams by means of electrical energy.
  • heat is generated as a function of the respective efficiency. With an ordinary efficiency of 30%, 70% of the electrical energy consumed is converted into heat.
  • This power loss heats the laser module as a whole and, on the other hand, the individual laser diodes themselves. By heating the laser module as a whole, it may cause shifts of the individual laser diodes to each other. As a result, the generated image may suffer on the printing plate.
  • the exposed image lines must have a well-defined distance from each other for a high quality print image. If the distance between individual image lines deviates from one another by about one ⁇ m, this is clearly recognizable as a loss of quality.
  • the laser modules are cooled. This can be done for example by means of a Peltier element.
  • a corresponding arrangement of such a cooling device is in the EP 1 388 655 A1 proposed.
  • Peltier elements require a heat sink with a relatively large surface area. Via this surface, the heat is given by convection to the ambient air. The more heat has to be given off d. H. the more heat that has to be transported away from the laser modules, the greater is the design-related space requirement of the Peltier element.
  • the space in the region of the laser modules is generally not sufficient to provide Peltier element here, which cool the laser modules accordingly.
  • the object of the present invention is achieved by the characterizing features of claim 1 in method view and by the characterizing features of claim 12 in device view.
  • the laser module is cooled by passing heat from the laser module via a heat conduction to the Peltier element.
  • the Peltier element is provided in a suitable area for its provision of the imagesetter, spatially separated from the laser module and via a corresponding Heat transport device for heat conduction with the laser module thermally coupled so that the laser module can be cooled and / or heated.
  • the Peltier element directly to the laser module.
  • the heat can first be transported away via a corresponding heat transport device of the laser module. At a certain distance in a place that provides sufficient space then the Peltier element can be made available. This may, for example, be an area in the vicinity of the outer panel of the printing platesetter. The heat can then be transported away from the laser module and released via a heat sink of the Peltier element to the environment.
  • the laser module can both be cooled and heated by passing heat from and / or to the laser module via a heat conduction to and / or from the Peltier element.
  • This digital control device may be, for example, a CPU which, depending on the outside temperature or the temperature of the laser diodes, controls the power supply of the Peltier element accordingly. Particularly favorable as the power supply is controlled digitally clocked. This is a power supply that is digitally controlled according to the principle of pulse width modulation and finally outputs analog output signals. The Peltier element itself is then driven by these analog signals which extends the life of the Peltier element and its efficiency is higher than when it is controlled clocked in some way. By providing a bipolar power supply, it is also possible to use the Peltier element for both cooling and heating.
  • a heat sink of the Peltier element is actively cooled by a fan.
  • the Peltier element acts as a control element in a control loop and although the Peltier element is controlled in response to temperature changes of the laser module to be controlled.
  • the Peltier element active in dependence of the modulation of individual laser diodes of the laser module is driven. This control of the digital control device is controlled by a pilot control unit.
  • the Peltier element can already be controlled by appropriate consideration of the modulation so that it can respond to these occurring thermal fluctuations of the laser diodes.
  • the pilot control unit is connected directly to the modulation device for modulating the laser diode signals.
  • an analog-to-digital converter for the feedback of the analog output signals of the power supply is provided on the digital drive means.
  • a cooling liquid circuit in the heat transport device is a cooling liquid circuit in the heat transport device.
  • a coolant for example, water can be used.
  • the cooling liquid itself should be cooled only by means of the Peltier element. The use of a compressor is not necessary. As a result, in particular noise can be avoided and vibrations by a possible compressor do not occur.
  • a low-pressure pump is provided for circulating the liquid of the coolant circuit.
  • This low-pressure pump may be particularly advantageously a pump with a magnetically mounted rotor or impeller, wherein the rotor or the impeller should advantageously be spherically shaped.
  • Magnetic bearing also less often blocks the pump since the rotor / impeller automatically evades smaller soiling.
  • the Peltier element itself has an optimum operating point for cooling or for heating the cooling liquid. If cooling liquid or the laser module or the laser diodes is to be further heated or cooled beyond this operating point, the efficiency of the Peltier element is reduced. In order to improve the efficiency of the Peltier element and to be able to dissipate or supply more heat, it is particularly favorable provided that at least two Peltier elements are operated for the supply or release of heat or to the cooling liquid circuit in parallel or in series , For this purpose, at least two Peltier elements are provided accordingly.
  • At least three Peltier elements connected in parallel and in series are provided for applying and / or releasing heat from and / or to the cooling liquid circuit.
  • the Fig. 1 shows a tempering device according to the invention for a laser module of a whotrommelplattenbelichters.
  • a printing plate 1 is mounted on a drum 2 of an external drum exposer not shown here clamped.
  • the drum 2 is rotated in accordance with the rotation arrow 3.
  • laser diodes of laser mode 4 emit laser beams 5 as a function of print data.
  • the laser beams 5 are focused by not shown here optical elements on the surface of the printing plate 1 and thereby write image lines 27 on the surface of the printing plate. 1
  • Each laser module 4 includes a plurality of laser diodes, z.
  • 64 laser diodes may be provided for a laser module 4.
  • the laser module 4 is located on an exposure head carrier 28.
  • This exposure head carrier 28 is moved via a stepping motor 8 by means of a feed screw 9 parallel to the axis of the drum 2 during the exposure of the printing plate 1 in the direction of the feed direction 7.
  • the feed rate of the exposure head carrier 28 is controlled via the stepper motor 8 so that the printing plate 1 is imaged as intended.
  • the individual image lines 27 are thereby exposed helically on the printing plate 1.
  • the laser diodes of the laser modules 4 are controlled by a modulation drive 6 as a function of their relative position to the surface of the printing plate 1 and in dependence on printing data.
  • the laser beams 5 are modulated accordingly.
  • the laser diodes heat up. Accordingly, the entire laser module 4 is heated. By this heating, the relative positions of the laser diodes to each other and the life of the change Laser diodes decreases.
  • the laser module 4 and thus also the laser diodes included are cooled by means of a coolant circuit 10.
  • this cooling liquid circuit 10 for example, pure water or a mixture of pure water and glycol can be located.
  • This cooling liquid is circulated by means of a low pressure pump 11 in the cooling liquid circuit 10 along the arrows 12.
  • the coolant circuit 10 is designed so that it meanders in the region of the laser module 4. In this way, it takes over the heat loss performance of the laser diodes of the laser module 4 and transports this heat away from the laser module 4.
  • the cooling liquid in the cooling liquid circuit 10 is heated accordingly. This heating of the coolant can be detected by a temperature sensor 13 in the coolant circuit 10.
  • a Peltier element 14 is provided to dissipate the heat from the coolant circuit 10.
  • the coolant itself is transported along a cooling side of the Peltier element.
  • the Peltier element 14 has a heat sink 15, which can be cooled by means of a fan 16. In this way, the heat is released from the cooling side of the Peltier element 14 to the heat sink 15 and then by convection to the ambient air.
  • the Peltier element 14 can remove heat from the coolant in response to an applied current.
  • a driving device in the form of a CPU 17 is provided for driving the Peltier element.
  • the control of the Peltier element 14 takes place in dependence on the temperature of the cooling liquid, which is determined by means of the temperature sensor 13. This temperature is transferred to the CPU 17.
  • the CPU 17 itself then controls the power supply 19 of the Peltier element 14. This is done by means of a drive signal 18.
  • the power supply 19 generates in response to the drive signals 18, Output signals 20 whose values determine the cooling power of the Peltier element 14. In this way, the cooling liquid is cooled by means of the Peltier element 14 so far that it has a temperature suitable for cooling the laser module 4.
  • the low-pressure pump 11 is adjusted so that the flow rate of the cooling liquid sufficient for a sufficient to cool the laser module 4 to a constant temperature and that the cooling liquid itself, the heat can be completely transferred to the Peltier element 14.
  • the low-pressure pump is controllably connected to the CPU 17.
  • Further control instruments can z. B. also be temperature sensors in the range of the laser module 4. These are not shown here.
  • FIG. 2 a particular embodiment of the control of the Peltier element 14 is shown. These are in particular the elements in section A of Fig. 1 are shown.
  • the laser module 4 is controlled by means of the modulation drive 6 in such a way that the individual laser diodes are modulated and expose image lines 27 as a function of the available print data.
  • This modulation of the laser diodes 4 is now transferred from the modulation drive 6 to a pilot control unit 21, which forwards a corresponding control signal 22 to the CPU 17.
  • This control signal 22 reflects the entirety of the modulation signals of the laser diodes of the laser module 4 again.
  • the cooling liquid of the cooling liquid circuit 10 is heated in response to these modulation signals.
  • the drive signals the CPU 17, which can be passed to the power supply 19 then consider this to the coolant transferring power already in advance.
  • the control signals 18 are intended to be modulated here and thus represent a digital signal form for controlling the power supply 19.
  • the power supply 19 is a bipolar, clocked power supply and is switched as a function of the pulse width of the drive signals 18.
  • Analog output signals 20 are then generated. This may be, for example, a current or else a voltage that is applied to the Peltier element 14.
  • the power supply unit 19 generates the output signals 20 as a function of the drive signals 18. This can be a non-linear control element, that is to say that the power supply 19 is no longer linearly dependent on the pulse width, at least for relatively large duty cycles of the pulse width modulation of the drive signals 18 generates a current as an output signal 20.
  • a feedback 23 is provided, which feeds back the analog output signal 20 to the CPU 17, so that a linearization can be performed here.
  • the analog feedback signal is first digitized by means of an analog-to-digital converter 24 for transfer to the CPU 17.
  • linear output signals 20 can be generated by means of the power supply 19.
  • the output signals 20 are a continuously adjustable current. The magnitude of the current and the direction then indicates whether the Peltier element 14 more or less cools or warms. The fact that a current with different signs can be generated by the power supply 19, the Peltier element 14 can ensure a constant temperature of the coolant.
  • the relative distances of the laser diodes of the laser module 4 also change by cooling the cooling liquid below a predetermined value, a deterioration of the resulting printed image on the printing plate 1 is also achieved by excessively cooling the cooling liquid or the laser module 4 itself.
  • This can be advantageously avoided by a temperature of the cooling liquid by means of the Peltier element 14.
  • the Peltier element 14 can be used as an active control element.
  • the cooling liquid can be heated or cooled.
  • the control of the power supply 19 may advantageously via the CPU 17 also be such that the modulation signals of the laser diodes are already taken into account here to ensure early a constant temperature of the laser module 4 of eg. 25 ° C. In conjunction with a corresponding control of the low-pressure pump 11 by means of the CPU, this control circuit can be improved.
  • the power supply 19 outputs as an output signal an analog current value. This can take on positive and negative values continuously.
  • the Fig. 3 shows a practical embodiment of the power supply 19.
  • a positive or negative current I P to be set At the Peltier element a positive or negative current I P to be set.
  • the CPU 17 generates a pulse width modulated drive signal 18. This gives the size of the desired current I P again.
  • the current I P is in this case the output signal 20 of the power supply unit 19.
  • This pulse-width-modulated signal 18 should have a period in the kilohertz range and have a pulse duty factor of approximately 5 to 100%.
  • the power supply 19 can be controlled over a very large current range.
  • the CPU 17 transmits a direction signal 25 to the power supply unit 19. This directional signal indicates whether the current I P should be positive or negative.
  • the output signal 20 is a voltage U P. The control then takes place accordingly.
  • a bridge driver IC B1 For generating the output signal 20, a bridge driver IC B1 is provided. This controls in response to the drive signals 18 and the direction signals 25, the output transistors T1 and T2. Depending on the applied direction signal 25, either the output transistors T1 are driven for a positive output signal 20 or the output transistors T2 for a negative output signal 20, ie for a negative current IP. Depending on the driven transistors T1 or T2, a direct current is generated via the coils and capacitors L1, C1 or L2, C2. This DC then controls the Peltier element 14 accordingly.
  • the DC current is supplied via a feedback circuit 23 to an analog-to-digital converter 24, which converts this analog DC current into a digital signal and transfers it to the CPU 17.
  • the CPU 17 can then make a linearization of the output signal 20 when driving the power supply 19. In this way, a particularly uniform output signal 20 can be achieved.
  • the Fig. 4 shows a specific embodiment of the tempering device for a laser module 4.
  • the same reference numerals designate here again the same elements as in the preceding drawings.
  • the coolant circuit 10 is split here, so that a plurality of Peltier elements 14 can be connected in series and in series and so can cool the coolant circuit 10 accordingly. Heating of the cooling liquid may be provided as well.
  • the control of the different Peltier elements 14 takes place as in the preceding drawings, in particular by means of a control as in Fig. 2 has been described in more detail.
  • two Peltier elements 14 in series and these in turn connected in parallel with a further series-connected pair of Peltier element 14.
  • an advantageous redundancy of the Peltier elements can be achieved as a result, in addition, as a result, a higher cooling or heat output of the Peltier elements 14 is achieved as well.
  • Each Peltier element 14 may have its own heat sink 15 with a corresponding fan 16. In this way, the performance of the tempering device can be increased accordingly.
  • the efficiency of a Peltier element 14 is dependent on the current I P used for driving.
  • the efficiency itself has a maximum at an optimal current I optimal. If the current intensity of the current I P exceeds this value, the efficiency of the Peltier element decreases again.
  • the efficiency is to be understood as the quotient of heat flow to the supplied electrical power.
  • a typical course of the efficiency as a function of the current I P is in Fig. 5 shown.
  • the temperature control devices described here it is possible to achieve a constant temperature of the laser modules 4.
  • the heat is transported away from the laser modules 4 and transferred to the Peltier elements 14.
  • a heating is also possible.
  • a constant temperature can then be maintained.
  • the Peltier elements 14 can be located in a region of the printing platesetter, where sufficient space and a corresponding convection can be made possible by means of a fan.
  • the Peltier elements 14 can not be operated directly on the laser modules 4, especially in an external drum imagesetter. It is then sufficient to circulate the coolant of the coolant circuit 10 by means of a low-pressure pump 11. As a result, little interference can be expected.
  • the cooling liquid itself does not have to be cooled by a compressor.
  • a compressor would at least affect a Berithungs spur the printing plate 1 by its vibrations.
  • a cooling performance for the laser modules 4 can be achieved by the simultaneous use of several Peltier elements 14 in series and or parallel to each other, which would otherwise be reached only via a compressor-cooled cooling circuit 10. As a result, a better print image can be achieved because vibrations are avoided. Also, more efficient cooling is possible.
  • the Peltier elements 14 can be located directly in the area of the outer walls of the printing platesetter. As a result, the waste heat can be led out by means of the fan 16 directly to the outside of the platesetter.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Laser Beam Printer (AREA)
  • Electronic Switches (AREA)
  • Lasers (AREA)
  • Semiconductor Lasers (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
EP10151333A 2005-08-01 2006-07-05 Vorrichtung zur Temperierung eines Lasermoduls in einen Druckplattenbelichter Withdrawn EP2228876A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005036099A DE102005036099A1 (de) 2005-08-01 2005-08-01 Vorrichtung zur Temperierung eines Lasermodus in einen Druckplattenbelichter
EP06116601A EP1750334B1 (de) 2005-08-01 2006-07-05 Vorrichtung zur Temperierung eines Lasermoduls in einen Druckplattenbelichter

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP06116601.3 Division 2006-07-05

Publications (1)

Publication Number Publication Date
EP2228876A1 true EP2228876A1 (de) 2010-09-15

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP10151333A Withdrawn EP2228876A1 (de) 2005-08-01 2006-07-05 Vorrichtung zur Temperierung eines Lasermoduls in einen Druckplattenbelichter
EP06116601A Not-in-force EP1750334B1 (de) 2005-08-01 2006-07-05 Vorrichtung zur Temperierung eines Lasermoduls in einen Druckplattenbelichter

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP06116601A Not-in-force EP1750334B1 (de) 2005-08-01 2006-07-05 Vorrichtung zur Temperierung eines Lasermoduls in einen Druckplattenbelichter

Country Status (6)

Country Link
US (1) US20070025402A1 (ja)
EP (2) EP2228876A1 (ja)
JP (1) JP2007043163A (ja)
CN (2) CN101770179B (ja)
AT (1) ATE464684T1 (ja)
DE (2) DE102005036099A1 (ja)

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FR2955801B1 (fr) 2010-02-01 2012-04-13 Markem Imaje Dispositif formant pupitre d'imprimante a jet d'encre continu, a concentrations de vapeur de solvant a l'interieur et autour du pupitre diminuees
CN102136672B (zh) * 2011-03-15 2012-12-26 上海交通大学 基于碳化硅包层板条的激光器冷却装置
US20120300024A1 (en) * 2011-05-25 2012-11-29 Microsoft Corporation Imaging system
GB2500365A (en) 2012-02-01 2013-09-25 Lumejet Holdings Ltd Radiating device and print media exposure device
CN105038727A (zh) * 2015-06-09 2015-11-11 大连淡宁实业发展有限公司 一种冷却液
DE102019216924A1 (de) 2019-11-04 2021-05-06 Robert Bosch Gmbh Laseremitteranordnung sowie LiDAR-System
WO2021151233A1 (en) * 2020-01-30 2021-08-05 Barco N.V. Cooling sub-assembly
US20230056905A1 (en) * 2021-08-23 2023-02-23 Palo Alto Research Center Incorporated Independently-addressable high power surface-emitting laser array with tight-pitch packing

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DE102005036099A1 (de) 2007-02-08
JP2007043163A (ja) 2007-02-15
EP1750334B1 (de) 2010-04-14
CN101770179B (zh) 2012-10-10
CN101770179A (zh) 2010-07-07
ATE464684T1 (de) 2010-04-15
EP1750334A1 (de) 2007-02-07
CN1908817A (zh) 2007-02-07
US20070025402A1 (en) 2007-02-01
DE502006006674D1 (de) 2010-05-27

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